viewsonic n2750w
TRANSCRIPT
Service Manual
ViewSonic N2750w-1(M)Model No. VS10576-1M
27” LCD TV
(N2750w-1M_SM Rev. 1a Apr. 2006)
ViewSonic® 381 Brea Canyon Road, Walnut, California 91789 USA - (800) 888-8583
Copyright Copyright © 2006 by ViewSonic Corporation. All rights reserved. No part of this publication may be reproduced, transmitted, transcribed, stored in a retrieval system, or translated into any language or computer language, in any form or by any means, electronic, mechanical, magnetic, optical, chemical, manual or otherwise, without the prior written permission of ViewSonic Corporation. Disclaimer ViewSonic makes no representations or warranties, either expressed or implied, with respect to the contents hereof and specifically disclaims any warranty of merchantability or fitness for any particular purpose. Further, ViewSonic reserves the right to revise this publication and to make changes from time to time in the contents hereof without obligation of ViewSonic to notify any person of such revision or changes. Trademarks Optiquest is a registered trademark of ViewSonic Corporation. ViewSonic is a registered trademark of ViewSonic Corporation. All other trademarks used within this document are the property of their respective owners.
Revision History Revision SM Editing Date ECR Number Description of Changes Editor
1a 04/04/06 Initial Release Sophia Kao
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TABLE OF CONTENTS
1. Precautions and Notices ......................................................................3
2. Service Tool & Equipment Required.....................................................4
3. Specifications........................................................................................4
4. Exploded View and Parts List................................................................8
5. Block Diagram.......................................................................................10
6. Schematic Diagrams.............................................................................11
7. Working Theorem................................................................................. 25
8. Wiring Diagram..................................................................................... 27
9. PCB Layout Diagrams.......................................................................... 28
10. Trouble Shooting Flow Chart.............................................................. 36
11. Adjustment.......................................................................................... 40
12. Recommended Spare Parts List......................................................... 42
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1. Precautions and Notices
1.1. SAFETY PRECAUTIONS
This LCD TV is manufactured and tested on a ground principle that a user's safety comes first. However, improper use or installation may cause damage to the LCD TV as well as to the user. Carefully go over the following WARNINGS before installing and keep this guide handy. WARNINGS: ! This LCD TV should be operated only at the correct power sources indicated on the label on
the rear end of the LCD TV. If you're unsure of the power supply in your residence, consult your local dealer or power company.
! Use only the special power adapter that comes with this LCD TV for power input. ! Do not try to repair the LCD TV yourself as it contains no user-serviceable parts. This
LCDTV should only be repaired by a qualified technician. ! Do not remove the LCD TV cabinet. There is high-voltage parts inside that may cause
electric shock to human bodies, even when the power cord is unplugged. ! Stop using the LCD TV if the cabinet is damaged. Have it checked by a service technacian. ! Put your LCD TV only in a clean, dry environment. If it gets wet, unplug the power cable
immediately and consult your service technician. ! Always unplug the LCD TV before cleaning it. Clean the cabinet with a clean, dry cloth.
Apply non-ammonia based cleaner onto the cloth, not directly onto the glass screen. ! Keep the LCD TV away from magnetic objects, motors, TV sets, and transformer. ! Do not place heavy objects on the LCD TV or power cord.
1.2. PRODUCT SAFETY NOTICE
Many electrical and mechanical parts in this chassis have special safety visual inspections and the protection afforded by them cannot necessarily be obtained by using replacement components rated for higher voltages, wattage, etc. Before replacing any of these components read the parts list in this manual carefully. The use of substitute replacement parts which do not have the same safety characteristics as specified in the parts list may create shock, fire, or other hazards.
1.3. SERVICE NOTES 1. When replacing parts or circuit boards, clamp the lead wires around terminals before
soldering. 2. When replacing a high wattage resistor (more than 1W of metal oxide film resistor) in circuit
board, keep the resistor about 5mm away from circuit board. 3. Keep wires away from high voltage, high temperature components and sharp edges. 4. Keep wires in their original position so as to reduce interference. 5. Usage of this product please refer to also user's manual.
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2. Service Tool & Equipment Required
1. SIGNAL GEN. 2. MULTIMETER 3. OSCILLOSCOPE 4. SCREW DRIVER 5. IRON 6. ABSORBER 7. SOLDER 8. DUMMY LOAD (5Ω/200W) 9. DVD PLAYER
3. Specifications
3.1. PRODUCT SPECIFICATIONS
LCD Panel 27" TFT Power Management < 5W (OFF MODE) Displayable Resolution VESA 1366 x 768 max. Pixel Dimension 0.4365(H)×0.4365(W)mm LCD Display Color 16.7M Color Max. (8bit/color) Viewing Angle CR≧10 Horizontal: -85°+85° Vertical: -85°+85°
Contrast Ratio 1000 : 1 (typical) Brightness 550 cd/m2 (typical)
Response Time 8ms (typical ,gray to gray ) Active Display Area 596.259mm×335.232mm RF Tuner Input level: 0 ~ +15 dB mV Rang: NTSC 55.25 to 801.25 MHz, 2-69 channels for Off-Air and 2-125 Channeis for CATV Power Voltage: 100~240 V Consumption:150 Watts(Max.) Speaker 10W×2 Compliance FCC,UL Temperature Operating : 0°C~ +40°C Storage : -20°C~+60°C
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3.2. FACTORY SUPPORTING MODES ITEM 1 2 3 4
TIMING 640× 480 60HZ 640× 480 67HZ 640× 480 75HZ 720× 400 70HZ
Pixel Rate 25.175MHZ 30.240MHZ 31.500MHZ 28.322MHZ
H TOTAL 31.778us 28.571us 26.667us 31.778us
H DISPLAY 25.422us 21.164us 20.317us 25.422us
H B-Porch 1.907us 3.175us 3.810us 1.907us
H Width 3.813us 2.116us 2.032us 3.813us
H Border 0.318us 0.000us 0.000us 0.318us
V TOTAL 16.683ms 15.000ms 13.334ms 14.268ms
V DISPLAY 15.253ms 13.714ms 12.800ms 12.710ms
V B-Porch 1.049ms 1.114ms 0.427ms 1.111ms
Vs Width 0.064ms 0.086ms 0.080ms 0.064ms
V Border 0.254ms 0.000ms 0.000ms 0.254ms
H/V Sync -/- -/- -/- -/+
Interlace No. No. No. No. ITEM 5 6 7 8
TIMING 800× 600 56HZ 800× 600 60HZ 800× 600 72HZ 800× 600 75HZ
Pixel Rate 36.000MHZ 40.000MHZ 50.000MHZ 49.500MHZ
H TOTAL 28.444us 26.400us 20.800us 21.333us
H DISPLAY 22.222us 20.000us 16.000us 16.162us
H B-Porch 3.556us 2.200us 1.280us 3.232us
H Width 2.000us 3.200us 2.400us 1.616us
H Border 0.000us 0.000us 0.000us 0.000us
V TOTAL 17.778ms 16.579ms 13.853ms 13.333ms
V DISPLAY 17.066ms 15.840ms 12.480ms 12.800ms
V B-Porch 0.626ms 0.607ms 0.478ms 0.448ms
Vs Width 0.057ms 0.106ms 0.125ms 0.064ms
V Border 0.000ms 0.000ms 0.000ms 0.000ms
H/V Sync +/+ +/+ +/+ +/+
Interlace No. No. No. No.
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ITEM 9 10 11 12
TIMING 832× 624 74.5HZ 1024× 768 60HZ 1024× 768 70HZ 1024× 768 75HZ
Pixel Rate 57.280MHZ 65.000MHZ 75.000MHZ 78.750MHZ
H TOTAL 20.111us 20.677us 17.707us 16.660us
H DISPLAY 14.525us 15.754us 13.653us 13.003us
H B-Porch 3.910us 2.462us 1.920us 2.235us
H Width 1.117us 2.092us 1.813us 1.219us
H Border 0.000us 0.000us 0.000us 0.000us
V TOTAL 13.417ms 16.666ms 14.272ms 13.328ms
V DISPLAY 12.549ms 15.880ms 13.599ms 12.795ms
V B-Porch 0.784ms 0.600ms 0.513ms 0.466ms
Vs Width 0.060ms 0.124ms 0.106ms 0.050ms
V Border 0.00ms 0.000ms 0.000ms 0.000ms
H/V Sync -/- -/- -/- +/+
Interlace No. No. No. No.
ITEM 13
TIMING 1280 × 1024 60HZ
Pixel Rate 108MHZ
H TOTAL 15.630us
H DISPLAY 11.852us
H B-Porch 2.296us
H Width 1.037us
H Border 0.000us
V TOTAL 16.661ms
V DISPLAY 16.005ms
V B-Porch 0.594ms
Vs Width 0.047ms
V Border 0.00ms
H/V Sync +/+
Interlace No.
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3.3. D-SUB CONNECTOR
Connector pin assignments for VGA cable The signal cable connector shall be a molded-over, shield twisted pair cable. The cable shall be 1.8 meters long. The pin assignments shall be listed as below:
PIN D-SUB Connector
1 Red Video 2 Green Video 3 Blue Video 4 NC 5 GND 6 GNC 7 GND 8 GND 9 +5V for DDC
10 GND 11 NC 12 SDA 13 H-sync 14 V-sync 15 SCL
Connector pin assignments for DVI cable DVI: 24 pins DVI connector is designed to match with DVI-D digital signal cable, the pin assignment is as the following:
Pin Signal Assignment Pin Signal Assignment Pin Signal Assignment
1 TMDS RX2- 9 TMDS RX1- 17 TMDS RX0- 2 TMDS RX2+ 10 TMDS RX1+ 18 TMDS RX0+ 3 TMDS Ground 11 TMDS Ground 19 TMDS Ground 4 Floating 12 Floating 20 Floating 5 Floating 13 Floating 21 Floating 6 DDC Clock 14 +5V Power 22 TMDS Ground 7 DDC Data 15 Ground 23 TMDS Clock+ 8 Floating 16 Hot Plug Detect 24 TMDS Clock-
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FIG.1
FIG.1
MAIN PCB ASS'Y
KEYPAD PCB ASS'Y
POWER PCB ASS'Y
NOTE.1
1F15
1F16 X3
1F17
1F18 X3
1F38
1F29 X2
1F25
1F30
1F31 X10
1F25
1F33
1F22
1F24 X6
V901
1F10
1F11 X21F11 X3
X31F11
1F11 X2
1F01
1F12 X4
1F06 X4
IR PCB ASS'Y
1F12 X6
1F12 X4
AUDIO PCB ASS'Y
1F28 X2
1F26
1F25
1F29 X2
1F19
X21F21
X41F21
1F13 X21F32
1F14 X3
5B02X6
5B01
X45B03
2C01
2C05
2C03
2C04
2C06X2
1F23 X4
1F23 X4
1F27 1F36
1F21 X2
1F05
1F12
1F39 X3
1F25 1F251F25
1F25
1F25
4. Exploded View and Parts List
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ViewSonic Model Number: VS10576-1MRev: 1aSerial No. Prefix: PJL
Item ViewSonic P/N Ref. P/N Description Q'ty1F01 C-00001791 2603307683 BEZEL ASS’Y JC278 ABS 94V0 BLACK #4001 1 11F05 N/A 2044266501 FUNCTION KEY JC278 ABS 94V0 AL-PLATE POWER 1 11F06 M-SCW-0824-0285 2084730082 SCREW,BND T+ M3X8(BND T+) 4 41F10 N/A 2071971300 METAL FITTG JC278 SECC t=1.0mm FOR PANEL 1 11F11 N/A 2080005200 SCREW,SPE M3*3 TYPE I FOR HS PANEL NI 10 101F12 M-SCW-0824-0811 2080003700 SCREW,SPE 1SZZTER001A M3*6LMSWR17/FZMY1 14 141F13 N/A 2072050400 METAL FITTG-I/O JC278 SECC t=1.0mm IO MAIN(U) 1 11F14 N/A 2083730108 SCREW,BND T+ M3X10,T24,F,NI 3 31F15 N/A 2072050500 METAL FITTG-I/O JC278 SECC t=1.0mm IO SIDE(U) 1 11F16 N/A 2082340102 SCREW,CSK+ SCREW F M4X10 (CSK+) 3 31F17 N/A 2027259402 DUST COVER JC278 ABS 94HB BLACK #4001 1 11F18 N/A 2083730108 SCREW,BND T+ M3X10,T24,F,NI 3 31F19 N/A 2071971400 METAL FITTG JC278 SECC t=1.0mm FOR SPK 1 11F21 M-SCW-0824-0285 2084730082 SCREW,BND T+ M3X8(BND T+) 8 81F22 N/A 2071870300 BRACKET,FIX JC278 Aluminum 1 11F23 N/A 2082740122 SCREW,BND+ M4X12 (BND+) 8 81F24 N/A 2082340102 SCREW,CSK+ SCREW F M4X10 (CSK+) 6 61F25 M-SCW-0824-0811 2080003700 SCREW,SPE 1SZZTER001A M3*6LMSWR17/FZMY1 8 81F26 N/A 2027259002 DUST COVER JC278 ABS 94HB BLACK #4001 1 11F27 N/A 2044266601 FUNCTION KEY JC278 ABS 94V0 AL-PLATE FUNCTI 1 11F28 M-SCW-0824-0285 2084730082 SCREW,BND T+ M3X8(BND T+) 2 21F29 M-SCW-0824-0811 2080003700 SCREW,SPE 1SZZTER001A M3*6LMSWR17/FZMY1 11 111F30 N/A 2071671000 SHIELD PLATE JC278 SECC t=1.0mm 1 11F31 N/A 2082340102 SCREW,CSK+ SCREW F M4X10 (CSK+) 10 101F32 N/A 2083630068 SCREW FMS+ M3X6,M,S-TITE,F,NI 2 21F33 N/A 2080040062 SCREW,SPE M4*8 PMS-3/W 1 11F36 N/A 2072459100 INSULATOR PC FR700 180X130 SONY T4000 1 11F38 N/A 2071871100 BRACKET,FIX JC278 SECC T=0.8mm FOR SWITCH 1 11F39 M-SCW-0824-0811 2080003700 SCREW,SPE 1SZZTER001A M3*6LMSWR17/FZMY1 3 32C01 C-00001790 2022262602 CABI BACK JC278 ABS 94HB BLACK #4001 1 12C03 N/A 2027259202 DUST COVER JC278 ABS 94HB BLACK #4001 1 12C04 N/A 2027259302 DUST COVER JC278 ABS 94HB BLACK #4001 1 12C05 N/A 2027259102 DUST COVER JC278 ABS 94HB BLACK #4001 1 12C06 N/A 2082740122 SCREW,BND+ M4X12 (BND+) 2 25B01 C-00001876 2071870401 BRACKET,FIX JC278 BASE ALUMINUM BLACK 4001 1 15B02 PL-PD-0714-0069 2039802303 FOOT PAD VA520 CR420x φ 16.5x5.8 BLACK 6 65B03 N/A 2082750402 SCREW,BND+ M5X40,M,P,ZN-CC 4 4
EXPLODED PARTS LIST (N2750w)
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TV Tuner
Philips FQ1236/F H-3
TV SoundProcessor
Micronas MSP3445/MSP3425
Audio Amp
YAMAHA YDA135
MUX
HEF 4052BT
Video DecoderTrumpion
T0956
Video SWTS5V330/ADG774 ADC
AD9883KST
SDRAM2Mx32x3
K4S643232H
IR Receiver
Keypad Control
EEPROM24C16
MCU128K
Scalerw/ de-interlace
trumpion
p.HD (t0932)
LVDS Tx
PC Audio InYPbPr Audio InAV Audio In
TVAV
Audio Out
L+R L+R
VGA input
CCIR656
RGB 24bits
A port
B port
I2C Control
To Panel
ANT
DVI+HDCP interface
SiI169
YPbPr
S-videoYCbCr W/3D-COM,C.C&V-CHIP
SDRAM1Mx16
M12L16161A
POWERSUPPLY
To INVERTER +24V
To main board +12V
DC to DC
+5V+5V+3.3V+2.5V
+12V
Earphone AmpTI TPA6110A2
EARPHONE
STK6012
5. Block Diagram
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VCC=+5V
ION_OFF
IADJ
IADJ
ION_OFF
PANELPWR11
BACKLITn11
PHDPWM08
TVM_PWRp11
TVM_PWRp11
SYS_PD11
Vpnl
VCC
P
VCCV
VCC
+3V3VCCV
VCCV
VCCV
P
+12VIN
+12VIN
VCCV +3V3
+12V
VCC
P
+12VIN
VCC
+2V5 +2V5
+2V5S
VCC +3V3 VCC +3V3
+3V3S
+5VS
R269NC
R270NC
L182 3.5X9X0.8
L1813.5X9X0.8
C10
510
0nD101MS22
12
I101SAKEN/8050SD
1
3
5 2
4VIN
GN
D
ON/OFF OUTPUT
FEEDBACK L104 40uH
C10
710
0n
Q104MMBT3904
13
2
C111100n
C121NC
R101NC/0R
R102NC/0R
L107CHOKE
P101
CON10
123456789
10
C106
1500uF/10VLESR
C1011000uF/16V
R103
NC/0R
C11
010
0n
C113NC
C115
1500uF/10VLESR
I104LM1084/3V3/TO263
3 2
1
VI VO
ADJ
R116 NC
R10410K
R1170R
C11847uF/16V
C119220uF/16V
R111
4K7
C11
610
0n
L108 40uH
I103SAKEN/8050SD
1
3
5 2
4VIN
GN
D
ON/OFF OUTPUT
FEEDBACK
D103MS22
12C
114
100n
R509 0R
Q111
SI9933ADY
1234 5
678S1
G1S2G2 D2
D2D1D1
R27210K
4
Q113AP9620M
4
71 2 3
8 6 5
Q105
MMBT3904
13
2
Q112MMBT3904
13
2
C117330p
R10610K
R115 4K7
R114 4K7
R1052K2
R118 NC
R108 4K7
Q102MMBT3904
13
2
C11247uF/16V
R12410K
R1214K7
L101CHOKE
L106BEAD/80R
R1072K2
R12
3N
C
Q106
MMBT3904
13
2
Q103MMBT3904
13
2
R110 4K7
R109150R/0805
4
Q101FDS9435
4
71 2 3
8 6 5
R1224K7
R271 4K7
R273 4K7
C574330p
P126
4 HEADER
1234
R274NC
R26810K
R267 4K7
R275 4K7
Q110MMBT3904
13
2
6. Schematic Diagrams6.1 DC-Power
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SiI1161 USE ONLY SiI1161 USE ONLYRX1-
RX0-
RXC+
RX1+
DVI_DET
RX2-RX2+
RXC-
DFP5V
RX0+
DVI_VCC
AIB1
AIB4
AIR2
RX0+
AIR0
RX1+
AIB3
AIR6
RX1-
AIB6
AIB2
AIG7
AIB0
AIR7
AIR1
RX2-
AIG2
RX2+
RXC+
AIB7
AIG0
AIR3
DVI_AVCC
AIR4
AIB5
AIG4
AIG1
RXC-
RX0-
AIG3
AIG5
AIR5
AIG6
DVI_SDADVI_SCL
STDRIOCKINV
DVI_OVCC
DVI_AVCC
DVI_SDADVI_SCL
DVI_SDADVI_SCL
OCKINV
STDRI
DVI_DET 11
AIB[0..7] 6,8
AIG[0..7] 6,8
AIR[0..7] 8
DVI_SCDT 11
DVI_DE 8
DVI_PDn11
DVI_CLK 8
DVI_HS 8DVI_VS 8
VCC
VDDCD
+3V3
+3V3
+3V3
+3V3
+3V3
VDDCD
VDDCD
+3V3
+3V3
R512
4K7
R129
NC
C13
510
0n
R133 0RR131 0R
C12
510
0n
C13
410
0n
L111BEAD/200R
C13
210
0n
C13
010
0nC
124
100n
R139 0R
R12
810
KRP02 47RX4
1
5
2
63
7
4
8
I106M24LC21
12345
678 PRE
E1E2
VSSSDASCL/WCVCC
RP01 47RX41
5
2
63
7
4
8
+
C13
310
uf/5
0V
C13
110
0nP105
DVI_29pin
1234567891011121314151617181920212223242526272829
TX2-TX2+
TX2/4GNDTX4-TX4+
DDC_CLKDDC_DATACRT_Vsync
TX1-TX1+
TX1/3GNDTX3-TX3+
+5V/50mAGND
HTPLGTX0-TX0+
TX0/5GNDTX5-TX5+
TXC_GNDTXC+TXC-Red
GreenBlue
CRT_HsyncAGND
R1264K7
RP04 47RX4
1
5
2
63
7
4
8
RP0547RX4
1
5
2
63
7
4
8
RP06 47RX4
1
5
2
63
7
4
8
D1051N4148
12
C141NC
R125 510R
R1274K7
RP0347RX4
1
5
2
63
7
4
8
ODD RED
ODD GREEN
ODD BLUE
EVEN RED
EVEN GREEN
EVEN BLUE
I105SII169
1011121314151617
2021222324252627
3031323334353637
4950515253545556
5960616263646566
6970717273747577
4446
4847
404142
100
4
1
7
3
92
9091858680819394
96
99
63867
53968
1829435778
1928455876
82
84
8895
7983878992
97
98
8
QE0QE1QE2QE3QE4QE5QE6QE7
QE8QE9
QE10QE11QE12QE13QE14QE15
QE16QE17QE18QE19QE20QE21QE22QE23
QO0QO1QO2QO3QO4QO5QO6QO7
QO8QO9
QO10QO11QO12QO13QO14QO15
QO16QO17QO18QO19QO20QO21QO22QO23
ODCKDE
HSYNCVSYNC
CTL1/KSCLCTL2/KSDA
CTL3
OCKinv/SCL
PIXS
RESETp
STAG_OUT
SDA
PDOnPDn
RX0+RX0-RX1+RX1-RX2+RX2-RXC+RXC-
EXT_RES
RSVD
VCC1VCC2VCC3
GND1GND2GND3
OVCC1OVCC2OVCC3OVCC4OVCC5
OGND1OGND2OGND3OGND4OGND5
AVCC1
MODE
AVCC2AVCC3
AGND1AGND2AGND3AGND4AGND5
PVCC
PGND
SCDT
R141
10K
D104
1N4148
1 2
C140NC
C12
610
0n
C14210p
L109BEAD/200RC122
100n
L113BEAD/200R
C143100n
+
C12
910
uf/5
0V
R134 10RR136 10R
R132 10RR145
NC
R137 100R
R143
NCR13510K
R140 NC
R138 NC
C13
810
0n
C13
710
0n
+
C12
710
uf/5
0V
+
C13
910
uf/5
0V
C12
810
0n
R130 10R
+
C12
310
uf/5
0V
L110BEAD/200R
L112BEAD/200R
C13
610
0n
R142 NC
R144 NC
R146
NC
R147
NC
6.2 DVI
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SlaveAddr: 0x98
YPbPr-Y
YPbPr-Pb
YPbPr-Pr
YPbPrinput
BIR7BIR6BIR5BIR4BIR3BIR2BIR1BIR0
BIG7BIG6BIG5BIG4
BIG1BIG2BIG3
BIG0
BIB7BIB6BIB5BIB4
BIB1BIB2BIB3
BIB0
VSYNC
Dsub_SCL
Dsub_SDA
VSYNC
HSYNC
Dsub_SCLDsub_SDA
VSYNC
Dsub_SDA
HSYNC
Dsub_SCL
HD_RIN
HD_GIN
HD_BIN
HD_PYHD_GIN
HD_RIN
PC_G
PC_R
HD_PBHD_BINPC_B
HD_PRHD_Y
HD_PR
HD_PB
HD_Y
HSYNC
Dsub_SDA
Dsub_SCL
VSYNC
USBDP
USBDM
5V_DCC
VGA_DET
PC_B
PC_R
PC_G
HD_COAST8HD_RGHS8
SCL4,5,6,7,8,11SDA4,5,6,7,8,11
BIG[0..7] 7,8,11
BIR[0..7] 8
BIB[0..7] 7,8,11
HDTV_CLK 8HDTV_HS 8
HDTV_CS 8
VGA_DET 11
GHSYNC 8GVSYNC 8
DDCSCL 11DDCSDA 11
USBDP 11USBDM11
HD_SEL11
VA_PLL
VADA VAD_D
VCC
VAD_D
VADA
VA_PLL
VDDCA
5V_DDC
5V_DDC
+3V3
VA_PLL
VDDCA
VCC
VCC
R165 47R
R168 47R
I108M24LC21
12345
678 PRE
E1E2
VSSSDASCL/WCVCC
R1484K7
R150100R
D1071N4148
12
R1494K7
C148 47n
R173NC
R163 10R
C366
47p/ESD
C367
47p/ESD
C368
47p/ESD
C369
47p/ESD
P10615-pin D-SUB connector
8
7
6
5
4
3
2
19
10
11
12
13
14
15
L119 BEAD/80R
R167 100R
R17
74K
7
R175 100R
R172 100R
C16
647
p
C16
710
0p
R174 100R
D1061N4148
1 2
L118 BEAD/80R
L117 BEAD/80R
C16122p/ESD
C15922p/ESD
C16022p/ESD
R15
5N
CR
176
4K7
L123BEAD/80R
L121BEAD/80R
R18
075
R
C18522p/ESD
C16347uF/16V
L122BEAD/80R
R159 22R
C179
22p/ESD
C144100n
R17075R
R17
875
R
C14
610
0n
R161
1K5
R16975R
R17
975
R
C17
510
0n
C19222p/ESD
C17
610
0n
C17
110
0n
C16
410
0n
C16
510
0n
C17
210
0n
C16
910
0n
P107RCA JACK 1X3
1
2
3
4
5
6
C17
010
0nC
177
100n
C17
810
0n
C18
610
0n
C18
710
0n
C18
810
0n
C18
910
0n
C19
010
0n
C19
110
0n
R166 100R
I109
AD9883KST-110
54
48
43
49
38
303129
5837
33
26 27 39 42 45 46 51 52 59 62 34 35 11 22 23 69 78 79
1 10 20 21 24 25 28 32 36 40 41 44 47 50 53 60 61 63 68 80
7071727374757677
23456789
1213141516171819
67666465
575655
Rain
Gain
Bain
SOGIN
CLAMP
HSYNCVSYNCCOAST
REFMIDSCV
FILT
VD VD VD VD VD VD VD VD VD VD PVD
PVD
VDD
VDD
VDD
VDD
VDD
VDD
GN
DG
ND
GN
DG
ND
GN
DG
ND
GN
DG
ND
GN
DG
ND
GN
DG
ND
GN
DG
ND
GN
DG
ND
GN
DG
ND
GN
DG
ND
R7R6R5R4R3R2R1R0
G7G6G5G4G3G2G1G0
B7B6B5B4B3B2B1B0
DATACLKHSOUTVSOUT
SOGOUT
SDASCLA0
L114 BEAD/200R
C18
110
0n
C18
210
0n
C18
310
0n
C18
410
0n
C145100uF/16V
L115 BEAD/200R
RP11 47RX41
5
2
63
7
4
8
RP12 47RX4
1
5
2
63
7
4
8
RP10 47RX4
1
5
2
63
7
4
8
RP9 47RX41
5
2
63
7
4
8
RP747RX41
5
2
63
7
4
8
RP8 47RX4
1
5
2
63
7
4
8
R164 100R
R153 100R
R154 820R
R152 100R
R1583K3
L116BEAD/200R
+C155
470uF/16V
R15
7N
C
C15
222
p
R151 100R
C15
322
p
C16210p
R17175R
C17
4
47uF
/16VL120
BEAD/200R
I110
PI5V330
23
4
56
7
1110
9
1413
12
16
8
115
S1AS2A
DA
S1BS2B
DB
S1CS2C
DC
S1DS2D
DD
VCC
GND
INEN
C17
310
0n
C370
47p/ESD
C371
47p/ESD
C372
47p/ESD
C373
47p/ESD
C561
100uF/16VR444
10K
R443
47K
C149 47n
R15
6N
C
R160 22R
R16
2N
C
C180100uF/16V
C150 10n
C15
7N
C
C15
8N
C
C15639n
C154 3n9
C168100uF/16V
I107LT1117-3V3
3
1
2VI
GN
D
VO
C147 47n
C15
122
p
6.3 VGA/YPbPr
ViewSonic Corporation Confidential - Do Not Copy N2750w-1 13
TV_TUNER FQ1236MK3 ONLYAND MOVE S_VIDEO TOVIDEO DECODER PAGE
YPbPr-Audio-L
YPbPr-Audio-R
SCL
SDA
VFOUT
AFOUT
TSDA
TV_2ndF
TSCL
1CVBS_TV
I_AFL
I_AFR
I_AFL
I_AFR
SCL 3,5,6,7,8,11
SDA 3,5,6,7,8,11
1TV_AFmono 5
1TV_2ndF 5
AV1_AFR5
AV1_AFL5
AF_SEL011
AF_SEL111
HD_AFL5
AV_AFR 5
AV_AFL 5
HD_AFR5
1CVBS_TV 6,7
+5VS
AGND AGND
AGND AGNDAGND
+12V
+12V
+12V
+12V
+12V
+5VS
P108RCA JACK 1X2
1
2
3
R18
710
0KR
199
100K
R20
010
0KR
188
100K
R19
710
0KR
185
100K
R18
610
0KR
198
100K
R208 10K
R210 10KQ108
MMBT390413
2
R48856R
L157 3.3uH
C386330p
R190 100R
C20368n
R2091K
R207NC
L126BEAD/200R
I111FQ-1236MK3
2
3
4
5
6
11
12
13
14
9
7 8 15 16
1
10
NC/VTout
Vb(+5V)
SCL
SDA
AS
2ndIFout
CVBSout
VIF(+5V)
AFout
AF-R
TH1
TH2
TH3
TH4
NC/AGC
AF-L
+
C20210uF/50V
R189 100R
L125BEAD/200R
C201330p
R20518R
L128BEAD/200R
L127BEAD/200R
R201 22R
R18
210
0K
I113HEF4052D
12141511
1524
6109
13
3
16
87
X0X1X2X3
Y0Y1Y2Y3
/INenAB
X
Y
VDD
VSSVEER
194
100K
R206 10K
R18
410
0K
Q107MMBT39041
3
2
R19
610
0K
R202 NC
R18
310
0K
R203 0R
+C198 10uF/50V
+C197 10uF/50V
R19
510
0K
R204 10K
R18
110
0K
C19647uF/16V
C19947uF/16V
C20
010
0nC
195
100n
C194100n
R19
310
0K
+
C204
10uF/50V
L130
BEAD/600R
C205
100p
+
C207
10uF/50VR212 15K
C209
100p
C206
100p
R211 15K
L129
BEAD/600R
C208
100p
6.4 TV-Tuner
ViewSonic Corporation Confidential - Do Not Copy N2750w-1 14
13,14,15,17,18,22,23,24,25,26,30,35,36,37,38,39,52,57,58,59,64Pin is NC Pin
AUDIO-OUT
AV
YUV-Audio-L
YUV-Audio-R
YPbPr
AV1-AudioR
AV1-AudioL
PC_AUDIO_IN
2SIF
PC_AFR
PC_AFL
AF_PRout
PC_AFL
PC_AFR
AF_PLout
AF_PRout
AF_PLout
AV_AFL4
AV_AFR4
SCL3,4,6,7,8,11SDA3,4,6,7,8,11
1TV_2ndF4
1TV_AFmono4
AUDIO_L_AMP 10
AUDIO_R_AMP 10
AV1_AFL 4
AV1_AFR 4
HD_AFL 4
HD_AFR 4
VD_RSTn6,7,11
VMTS
VMTS
VMTS
VCCV
VMTS
AGND
AGND
AGND AGND
AGNDAGND
AGND
AGND
AGND
AGND
AGND
AGND
AGND
AGND
AGND
AGND
+12V
+
C24310uF/50V
P111PHONE_JACK
54321
+
C24810uF/50V
I139
LM7808
32
1
VIVO
ADJL180 BEAD/200R
P110RCA JACK 2X3
1
2
3
4
5
6
7
8
9
+C217
10uF/50V+
C22210uF/50V
+
C22910uF/50V
+
C22610uF/50V
L132 BEAD/200R
C55
71n
C246100uF/16V
C55
61n
R223 0R/1206R222 0R/1206
R220 100RR219 100RR218 10K
C23710uf/50V
C2413.3uF/50V
C21
810
uF/5
0V
L131 BEAD/200R
C24033p
C23933p
X10118.432MHz
L133 NC
L139BEAD/200R
C244100p
C23
433
0P
C23
533
0P
C236NC/10uf/50V
R22110K
L138 BEAD/600R
C245100p
C223 56p
I114
MSP3425G_LQFP64
50
51
47
44
45
41
42
43
6321
89743
5
612
16
62
31 49 10
1133
34
53
32
46
27 19 48
5455
6160
21
20
29
28
40
56
ANA_IN1+
ANA_IN-
MONO_IN
SC1_INL
SC1_INR
SC2_INL
SC2_INR
ASG
StandbyQI2C_SDAI2C_SCL
ADR_WSADR_CLADR_DAI2S_WSI2S_CL
I2S_DAout
I2S_DAin1I2S_DAin2
ResetQ
I2CADR
AHVS
UP
AVSU
P
DVS
UP
DVS
S
AHVS
S
AGNDC
TEST
EN
CAPL_M
VrefTop
Vref
1Vr
ef2
AVSS
XTALinXTALout
Dctr0Dctr1
Dacm_L
Dacm_R
SC1out_L
SC1out_R
ASG
TP
L140 BEAD/600R
C250100p
C22156p
C249100p
R2140R
C24
710
0n
C23
810
0n
C21
410
0n
C21
510
0nC21
610
0n
C24
210
0n
C233
1u/16V 0603
C230
1u/16V 0603
C225100p
C219100p
R224
15K
R215 15K
R225
15K
C224100p
L136 BEAD/600R
R216 15K
C231100p
L137 BEAD/600R
R217 15K
L134BEAD/600R
C227100p
C228100p
C220100p
R213 15K
L135BEAD/600R
C232100p
6.5 Audio
ViewSonic Corporation Confidential - Do Not Copy N2750w-1 15
B7-LLC2
B0-CREFB1-HREFB2-VREFB3-FIELDB5-HSB6-VS
YCbCr-Cr
YCbCr-Cb
AV1-CVBS
YCbCr-Y
VIDEO-IN
S-Y
for pin69
S-C
S-Video
for pin76
1VDFD
1VDCLK
1VDVS AIB6
AIG6AIG7
AIG3
AIG5
AIG0
AIG2AIG1
AIG4
AIB3
AIB11VDHref
1VDHS AIB5
AIB21VDVref
MMCASnMMRASn
MMWEn
MMCLK
MMA0
MMA9
MMA6MMA5
MMA7
MMA11
MMA8
MMA2
MMA10
MMA1
MMA4MMA3
MMD08
MMD10
MMD14
MMD11
MMD15
MMD12
MMD09
MMD13
MMD05
MMD02
MMD07
MMD04
MMD00
MMD03
MMD06
MMD01
MMD07
MMD01
MMD05
MMD00
MMD06
MMD02
MMD04MMD03
MMD11
MMD09MMD08
MMD12
MMD14MMD13
MMD15
MMD10
MMWEn
MMRASnMMCASn
MMCLK
MMA0
MMA9
MMA6MMA5
MMA7
MMA11
MMA8
MMA2
MMA10
MMA1
MMA4MMA3
AIB6AIB5AIB3AIB2AIB1AIB0
CR
AV1_CVBS
CB
CY
CR
CB
CY
SDA 3,4,5,7,8,11SCL 3,4,5,7,8,11
VD_RSTn 5,7,11
AIG[0..7] 2,8
AV1_CVBS71CVBS_TV4,7
AV1_YC_C7
AIB0 2,8AIB1 2,8AIB2 2,8AIB3 2,8AIB5 2,8AIB6 2,8
AV1_CVBS 7
AV1_YC_Y 7
1VD_CLK 8
CY 7
CB 7
CR7
CY7
CB7
CR 7
AV1_YC_C 7
AV1_YC_Y7
+5VS 1VDA331VA33
1VDPLL
1VDPLL
1VDPLL
1VA33
1VD33
+3V3S
1VD33
1VD251VD25
1VDPLL
+3V3S
1MDV33
+3V3
+2V5S
1MDV331MDV33
1MDV33
C567 100p
R514 100RR515 100R
R516 100RR517 100RR518 100RR519 100R
R520 100R
R24656R
R24756R
C37847p/ESD
C37947p/ESD
C38047p/ESD
C38147p/ESD
C377330p
C376330p
C375330p
C374330p
R260 18R
R261 18R
R262 18R
R263 18R
C314
330p
P113
S_TERMINAL
81
6 2
5/3
L1513.3uH
TP22
C28639n
C284 3n9
TP25
R245
56R
L1493.3uH
C278 100n
C30
810
0n
C30
710
0n
R239 3K3
C315330p
I116T0956
43
50
4445
49
51525354
5859
424857
475661
46556062
63
6467
69
70
68
6566
4039
41
32
2928272625242322191817163031
1112131415
87654321
126125124123122121120119
109110111112113114115116
99100101102103104105106
8990919293949596
8685848382818071
7372
77767574
3536
10347998118
2188108128
933789711720871071273738
RAin
GAin
Comp_CrYC_C
SOGin
Comp_YYC_YCVBS1CVBS2
BAinComp_Cb
AVD1AVD2AVD3
AGND1AGND2AGND3
RmidBPGmidBPBmidBPREFBP
VD_PLL1
GND_PLL1GND_PLL2
GND_PLLD
VD_PLLD
VD_PLL2
FILTTPAD
SDASCL
RSTn
I2C_Addr
MA0MA1MA2MA3MA4MA5MA6MA7MA8MA9MA10MA11BA0BA1
MCLKWEnCASnRASnCSn
MD0MD1MD2MD3MD4MD5MD6MD7MD8MD9MD10MD11MD12MD13MD14MD15
Rout7Rout6Rout5Rout4Rout3Rout2Rout1Rout0
Gout7Gout6Gout5Gout4Gout3Gout2Gout1Gout0
Bout7Bout6
Bout5/CoastBout4/HsyncBout3/ClampBout2/CKext
Bout1/LLCBout0
FieldVACTOHACTOVsyncoHsynco
VclkoDvalid/ADC_HS
SOGout
CoastHSin
TTCCR/PCLKTTCCG/VS_PIPTTCCB/HS_PIP
TTCCFB/MCLKin
CLK40ICLK40O
VDD33_1VDD33_2VDD33_3VDD33_4VDD33_5
VDD25_1VDD25_2VDD25_3VDD25_4
VSS33_1VSS33_2VSS33_3VSS33_4VSS33_5VSS25_1VSS25_2VSS25_3VSS25_4TESTen
TESTPIN
C279 100nC280 100nC281 100n
TP17
TP21
C262100uF/16V
C30
510
0n
L148BEAD/200R
C303100uF/16V
TP24
+C298470uF/16V
C31
210
0n
C31
110
0n
C30
610
0n
TP18
C283NC
TP23
C282 100n
C267 100n
TP19
X103
20MHzC29618p
C31
310
0n
C30
410
0n
R242 100R
TP16
TP20
R241 1M
C29518p
R233 0R
R235 0RR234 0R
R243 100R
C31
010
0n
L150BEAD/200R
C294100n
C309100uF/16V
R232 0R
C268 100n
C274 100n
C269 100n
C275 100n
C28847uF/16V
C290100n
C289100n
C26
610
0n
C26
310
0n
R237 47R
I115 M12L16161A17
1325
3844
41026414750
212223242728293031322019
1436
171615183534
2356891112
3940424345464849
VCCVCCVCCVCC
VCCVCC
GNDGNDGNDGNDGNDGND
A0A1A2A3A4A5A6A7A8A9A10A11
DQM0DQM1
/RAS/CAS/WE/CSCLKCKE
D0D1D2D3D4D5D6D7
D8D9
D10D11D12D13D14D15
R264 18R
R265 18R
C30
110
0n
C26
410
0n
C26
510
0n
C293100n
I117LT1117-3V3
3 2
1
VI VO
ADJ
C291100n
C270 100n
L143 0R
L1420R
C29
910
0n
C30
010
0n
R24456R
C292100n
C276 100n
C271 100n
C273 100n
R24056R
P112RCA JACK 2X2
1
2
3
4
5
6
L141 BEAD/600R
R236 0R
C382330p
C383330p
C38447p/ESD
C38547p/ESD
L1463.3uH
C287330p
C26
110
0n
L1443.3uH
L1473.3uH
C302330p
R23110K
C297330p
RP31 47RX4
1
5
2
63
7
4
8
RP30 47RX4
1
5
2
63
7
4
8
L1453.3uH
C285330p
R23856R
6.6 Vidio Decoder 1
ViewSonic Corporation Confidential - Do Not Copy N2750w-1 16
B7-LLC2
B0-CREFB1-HREFB2-VREFB3-FIELDB5-HSB6-VS
2VDFD
2VDCLK
2VDVS BIB6
BIB3
BIB12VDHref
2VDHS BIB5
BIB22VDVref
2MCASn2MRASn
2MWEn
2MCLK
2MA0
2MA9
2MA62MA5
2MA7
2MA11
2MA8
2MA2
2MA10
2MA1
2MA42MA3
2MD08
2MD10
2MD14
2MD11
2MD15
2MD12
2MD09
2MD13
2MD05
2MD02
2MD07
2MD04
2MD00
2MD03
2MD06
2MD01
2MD07
2MD01
2MD05
2MD00
2MD06
2MD02
2MD042MD03
2MD11
2MD092MD08
2MD12
2MD142MD13
2MD15
2MD10
2MWEn
2MRASn2MCASn
2MCLK
2MA0
2MA9
2MA62MA5
2MA7
2MA11
2MA8
2MA2
2MA10
2MA1
2MA42MA3
BIB6BIB5BIB3BIB2BIB1BIB0
CR
CB
BIG6BIG5
BIG0BIG1BIG2
BIG4BIG3
BIG7
CY
SDA 3,4,5,6,8,11SCL 3,4,5,6,8,11
VD_RSTn 5,6,11
AV1_CVBS61CVBS_TV4,6
AV1_YC_Y6
AV1_YC_C6
BIB0 3,8BIB1 3,8,11BIB2 3,8,11BIB3 3,8,11BIB5 3,8,11BIB6 3,8,11CR6
CY6
CB6
BIG[0..7] 3,8,11
2VD_CLK 8
+5VS 2VDA332VA33
2VDPLL
2VDPLL
2VDPLL
2VD33
+3V3S2VD33
2VD25
2VD33
2VDPLL
2MDV33
+3V3
+2V5S
2MDV332MDV33
2MDV33
2VD25
+3V3S
2VA33
C568 NC
TP35TP34
+C350NC
C35
9N
C
TP32
I118NC
43
50
4445
49
51525354
5859
424857
475661
46556062
63
6467
69
70
68
6566
4039
41
32
2928272625242322191817163031
1112131415
87654321
126125124123122121120119
109110111112113114115116
99100101102103104105106
8990919293949596
8685848382818071
7372
77767574
3536
10347998118
2188108128
933789711720871071273738
RAin
GAin
AD2AAD2B
SOGin
AD1AAD1BAD1CAD1D
BAinAD3A
AVD1AVD2AVD3
AGND1AGND2AGND3
RmidBPGmidBPBmidBPREFBP
VD_PLL1
GND_PLL1GND_PLL2
GND_PLLD
VD_PLLD
VD_PLL2
FILTTPAD
SDASCL
RSTn
I2C_Addr
MA0MA1MA2MA3MA4MA5MA6MA7MA8MA9MA10MA11BA0BA1
MCLKWEnCASnRASnCSn
MD0MD1MD2MD3MD4MD5MD6MD7MD8MD9MD10MD11MD12MD13MD14MD15
Rout7/AD2_7Rout6/AD2_6Rout5/AD2_5Rout4/AD2_4Rout3/AD2_3Rout2/AD2_2Rout1/AD2_1Rout0/AD2_0
Gout7/AD1_7Gout6/AD1_6Gout5/AD1_5Gout4/AD1_4Gout3/AD1_3Gout2/AD1_2Gout1/AD1_1Gout0/AD1_0
Bout7/AD3_7Bout6/AD3_6Bout5/AD3_5Bout4/AD3_4Bout3/AD3_3Bout2/AD3_2Bout1/AD3_1Bout0/AD3_0
FieldVACTO/FB
HACTOVsyncoHsyncoVCLKo
ADC_HS/VBI_DSOGout/TTCCLK
CoastHSin
TTCCR/PCLKTTCCG/VS_PIPTTCCB/HS_PIP
TTCCFB/FID_PIP
CLK20ICLK20O
VDD33_1VDD33_2VDD33_3VDD33_4VDD33_5
VDD25_1VDD25_2VDD25_3VDD25_4
VSS33_1VSS33_2VSS33_3VSS33_4VSS33_5VSS25_1VSS25_2VSS25_3VSS25_4TESTen
TESTPIN
C340NC
C339 NC
C35
8N
C
R255 NC
C336 NCC335 NCC334 NC
C322 NC
C337 NC
TP27
TP31
C316NC
C35
6N
C
L155NC
C354NC
C35
5N
C
C360NC
C36
1N
C
TP26
C35
7N
C
R258 NCR257 NC
C36
3N
C
C36
2N
C
C338NC
R256 NC
C348NC
TP33
R249 NC
TP30TP29TP28
R250 NC
R252 NCR251 NC
R254 NC
I120 NC17
1325
3844
41026414750
212223242728293031322019
1436
171615183534
2356891112
3940424345464849
VCCVCCVCCVCC
VCCVCC
GNDGNDGNDGNDGNDGND
A0A1A2A3A4A5A6A7A8A9A10A11
DQM0DQM1
/RAS/CAS/WE/CSCLKCKE
D0D1D2D3D4D5D6D7
D8D9
D10D11D12D13D14D15
X104
NCC349NC
C36
4N
C
C330 NC
C328 NC
C344NC
C341NC
C343NC
C32
0N
C
C324 NC
C329 NC
I119NC
3 2
1
VI VO
ADJ
C323 NC
L152 NC
C345NC
C35
3N
C
C31
9N
C
L154 NC
C342NC
R527 NC
R526 NCR525 NCR524 NCR523 NC
R522 NCR521 NC
C347NC
C346NC
R253 NC
C35
1N
C
C35
2N
C
L153NC
C331 NC
C32
1N
C
C31
8N
C
C31
7N
C
L156NC
C333 NC
C325 NCC326 NC
RP33 NC
1
5
2
63
7
4
8
RP32 NC
1
5
2
63
7
4
8
R248NC
6.7 Vidio Decoder 2
ViewSonic Corporation Confidential - Do Not Copy N2750w-1 17
INPUT_A/B & HMD OUTPUT STAGE MEMORY INTERFACE & OSD
POWER SECTION
PHDCLK
PDE
ZXO
PHSYNCPVSYNC
PRA6PRA7
PRA3
PRA5PRA4
PRA1PRA2
PRA0
PGA1PGA2
PGA6
PGA0
PGA3
PGA5PGA4
PGA7
PBA0
PBA3PBA2
PBA5PBA6PBA7
PBA1
PBA4
ZXI
TTfc-INTn
AIG7AIG6AIG5AIG4
AIG0AIG1
AIG3AIG2
BIB3BIB4
BIG4BIG5
BIB1
BIB5
BIB7
BIG2
BIB2
BIB6
BIG0BIG1
BIG3
BIB0
BIR0BIR1
BIR6BIR7
BIR5
BIR3BIR2
BIR4
BIG6BIG7
MD75MD74MD73MD71
MCLK
MCASnMRASn
MWEn
MA0MA1MA2MA3MA4MA5MA6MA7MA8MA9MA10
MA12MA11
MCASn
MCLK
MWEn
MRASn
MA0MA1MA2MA3
MA5
MA7
MA4
MA6
MA10MA9MA8
MA11MA12
MD0MD1MD2MD3MD4MD5MD6MD7MD8MD9
MD11MD10
MD12MD13MD14MD15
MD17MD16
MD18MD19MD20MD21
MD23MD22
MD26
MD29
MD24MD25
MD27MD28
MD30MD31
MD32MD33MD34MD35
MD37MD36
MD42
MD40
MD38
MD43
MD39
MD41
MD47MD48
MD46MD45MD44
MD49
MD52
MD55
MD50MD51
MD53MD54
MD57MD56
MD60
MD58
MD61
MD59
MD63MD62
PWM7
PD32 NF4
MA7
MA5
MA9
MA6
MA12
MA8
MA0MA1MA2MA3MA4
MA10MA11
MRASnMCASnMWEnMCLK
MD65MD66MD67MD68MD69MD70MD72
MD64MD76
MD39
MD47
MD45
MD40
MD48
MD41
MD46
MD49
MD43MD42
MD44
MD38MD37MD36
MD62
MD56
MD50
MD60MD61
MD58
MD52
MD57
MD51
MD63
MD54MD53
MD59
MD55
MD20
MD14
MD18MD19
MD16
MD10
MD15
MD21
MD12MD11
MD17
MD13
MD29
MD24
MD34
MD22
MD31
MD23
MD32
MD27
MD25
MD30
MD33
MD26
MD35
MD28
MD1
MD5
MD8
MD3MD2
MD9
MD7MD6
MD0
MD4
MD77MD78MD79MD80MD81MD82MD83MD84MD85MD86MD87MD88MD89
MD91MD90
MD95
MD92
MD94MD93
HD_COAST
JP7JP6JP5JP4
JP2JP3
JP0JP1
MA13
AIB3
AIB5AIB6
AIB0AIB1AIB2
RGHSACOASTA
RGHSACOASTA
AIB4
AIB7
AIR7AIR6AIR5AIR4
AIR0AIR1
AIR3AIR2
NE5PD22
ND7MOTION
MD67
MD79
MWEn
MA2
MA5
MA8
MD87
MD83
MD64MD65
MD68
MD90
MD74
MD76
MCLK
MD70
MD85
MA11
MCASn
MA3
MA9
MD69
MD81
MA4
MA10
MD89MD88
MA0
MD73
MD93
MD82
MD77
MD71
MD66
MD86
MD92
MD72
MRASn
MD80
MD94
MA6
MD84
MD91
MD75
MD95
MA12
MA1
MA7
MD78
MDQM
SDA3,4,5,6,7,11
PDE 9PVSYNC 9PHSYNC 9
PHDPDP11
PRA[0..7] 9
PGA[0..7] 9
PBA[0..7] 9
PHDPWM01
SCL3,4,5,6,7,11TTfc-RSTn11
TTfc-INTn 11
AIG[0..7]2,6
BIR[0..7]3
BIB[0..7]3,7,11
BIG[0..7]3,7,11
PCLK 9HDTV_HS3
HDTV_CLK3
HDTV_CS 3
HD_RGHS 3HD_COAST 3
GHSYNC 3GVSYNC 3
1VD_CLK6
JPHS11JPHREF11
JPCLK11
JP[0..7]11
DVI_DE2
DVI_CLK2
DVI_HS 2DVI_VS 2
AIB[0..7]2,6
AIR[0..7]2
2VD_CLK7
JPCK11
2VD_CLK7
+3V3
VDDAM
+2V5
+2V5
+2V5+2V5
VDDAM
+3V3D
+3V3D
+3V3D
+3V3D
+3V3D
+3V3
+3V3D
+3V3D
+3V3
+2V5
+3V3D
+3V3
VCCVVDDAP
VDDAP
+3V3D
+3V3D
+3V3D
+3V3D
+3V3D
+3V3D
PD42TP9
R368 100R
PD42TP5
X10514.318MHz
C40933p
R3761M
R366 NC
R381 0R
C40833p
C430100n
C425100n
C420100n
C428100n
C416100n
R369 100R
PD32TP3
PD22TP4
C415100n
C412100n
C422100n
C419100n
C429100n
C421100n
C427100n
C423100n
C426100n
C414100n
C417100n
C413100n
C424100n
C434100uF/16V
C432100uF/16V
I125
SDRAM2MX32-TSOP86
115
1671
191817
20
6867
245781011137476777980828385
2526276061626364656624
6
5246383212
31333436373940424547485051535456
2859
2223
2943
39354149557581
7884
86725844
VDDVDD
DQM0DQM1
/RAS/CAS/WE
/CS
CLKCKE
D0D1D2D3D4D5D6D7D8D9
D10D11D12D13D14D15
A0A1A2A3A4A5A6A7A8A9A10
VSSQ
VSSQVSSQVSSQVSSQVSSQ
D16D17D18D19D20D21D22D23D24D25D26D27D28D29D30D31
DQM2DQM3
BA0BA1
VDDVDD
VDDQVDDQVDDQVDDQVDDQVDDQVDDQVDDQ
VSSQVSSQ
VSSVSSVSSVSS
I126
SDRAM2MX32-TSOP86
115
1671
191817
20
6867
245781011137476777980828385
2526276061626364656624
6
5246383212
31333436373940424547485051535456
2859
2223
2943
39354149557581
7884
86725844
VDDVDD
DQM0DQM1
/RAS/CAS/WE
/CS
CLKCKE
D0D1D2D3D4D5D6D7D8D9
D10D11D12D13D14D15
A0A1A2A3A4A5A6A7A8A9A10
VSSQ
VSSQVSSQVSSQVSSQVSSQ
D16D17D18D19D20D21D22D23D24D25D26D27D28D29D30D31
DQM2DQM3
BA0BA1
VDDVDD
VDDQVDDQVDDQVDDQVDDQVDDQVDDQVDDQ
VSSQVSSQ
VSSVSSVSSVSS
R382 47R
L168 BEAD/200R
L169 BEAD/200R
C433100n
C411100n
C418100n
C451100n
C449100n
C453100n
C459100n
C457100n
L167BEAD/200R
C435100n
L166BEAD/200R
C462100n
C456100n
C452100n
C450100n
C454100n
C410NC
C473100nC472
100uF/16V
C460100n
C470100n
C463100n
C461100n
C465100n
C455100n
C448100n
C458100n
C471100n
C464100nR386
0R
C467100n
R383 47R
I127LM1084/2V5/T0263
3 2
1
VI VO
ADJ
R385 NCC468100n
C469100n
C447470uF/16V
C466100n
TPTP6
R367 4K7
EXTPCLKTP8
R374
0R
I124
SDRAM2MX32-TSOP86
115
1671
191817
20
6867
245781011137476777980828385
2526276061626364656624
6
5246383212
31333436373940424547485051535456
2859
2223
2943
39354149557581
7884
86725844
VDDVDD
DQM0DQM1
/RAS/CAS/WE
/CS
CLKCKE
D0D1D2D3D4D5D6D7D8D9
D10D11D12D13D14D15
A0A1A2A3A4A5A6A7A8A9A10
VSSQ
VSSQVSSQVSSQVSSQVSSQ
D16D17D18D19D20D21D22D23D24D25D26D27D28D29D30D31
DQM2DQM3
BA0BA1
VDDVDD
VDDQVDDQVDDQVDDQVDDQVDDQVDDQVDDQ
VSSQVSSQ
VSSVSSVSSVSS
C446100n
C445100n
C444100n
R370 NC
INPUT A PORT
INPUT B PORT
HMD A
HMD B
HMD
Interrupt
INPUT CONTROL
INPUT
OVERLAY
PORT
V/Pr port
Y/Py port
U/Pb port
U/Pb port
Y/Py port
V/Pr port
AB
C
I123At0932
Y5W5V5U5Y4
W4V4Y3
V10Y9
W9V9U9Y8
W8V8
Y15U14V14
W14Y14V13
W13Y13
W3U4U3Y2
V17W17U17
U8Y7
W7V7U7Y6
W6V6
V12W12Y12V11
W11Y11Y10
W10
Y17U16V16
W16Y16U15V15
W15
Y19
T16U18
Y20W18
R16P16V18
W19Y18
K3
U1
T5U2
V20V19U19
W20
IARED7IARED6IARED5IARED4IARED3IARED2IARED1IARED0
IAGRN7IAGRN6IAGRN5IAGRN4IAGRN3IAGRN2IAGRN1IAGRN0
IABLU7IABLU6IABLU5IABLU4IABLU3IABLU2IABLU1IABLU0
IACLK/LLCIADEIAVSIAHS
IBCLK/LLCIBVSIBHS
IBRED7IBRED6IBRED5IBRED4IBRED3IBRED2IBRED1IBRED0
IBGRN7IBGRN6IBGRN5IBGRN4IBGRN3IBGRN2IBGRN1IBGRN0
IBBLU7IBBLU6IBBLU5IBBLU4IBBLU3IBBLU2IBBLU1IBBLU0
CSYNCA
VGAVSAVGAHSA
COASTARGHSA
VGAVSBVGAHSBCSYNCB
COASTBRGHSB
IRQn
ICCLK/LLC
ICHSICVS
IOVR/MDQ74IOVG/MDQ73IOVB/MDQ71
IOVFB/MDQ75
PANEL INTERFACE
CONTROL
STATUS/PWM
CLOCK
GENERATOR
V/Pr port
Y/Py port
U/Pv port
U/Pv port
Y/Py port
V/Pr port
I123Ct0932
G19G20H18H19H20J18J19J20
K18K19K20L20L19L18M20M19
M18N20N19N18P20P19P18R20
B15C15D15A16B16C16D16A17
B17C17A18B18A19A20B19B20
C18C19C20D17D18D19D20E17
F20
E20F17F18E19
J3
K4L4
M4
B13
A15C14G4H4J4
E18F19R5
F4
E5
D7
Y1
W2
L3H3
PARED7PARED6PARED5PARED4PARED3PARED2PARED1PARED0
PAGRN7PAGRN6PAGRN5PAGRN4PAGRN3PAGRN2PAGRN1PAGRN0
PABLU7PABLU6PABLU5PABLU4PABLU3PABLU2PABLU1PABLU0
PBRED7PBRED6PBRED5PBRED4PBRED3PBRED2PBRED1PBRED0
PBGRN7PBGRN6PBGRN5PBGRN4PBGRN3PBGRN2PBGRN1PBGRN0
PBBLU7PBBLU6PBBLU5PBBLU4PBBLU3PBBLU2PBBLU1PBBLU0
PCLKI
PDEPVSPHS
PCLK
RSTn
SDASCL
POWERPD
IICADDR
PWM7/DQMPWM6/V_DIFFPWM5/MotionPWM4/M_LEDPWM3/BE_LEDPWM2PWM1PWM0
PD32
PD22
MOTION
XtalO
XtalI
TESTAPTESTSP
C436100uF/16V
C440100n
C439100n
C438100n
C437100n
JPEG PORT
MEMORY INTERFACE
External
OSD port
I123Bt0932
N17M17L17K17J17H17G17F16
G18
E16P17
C12B12A12C11B11A11A10B10C10
A9B9C9A8B8
T4T3T2T1R4R3R2R1P3P2P1N4N3N2N1M3M2M1L2L1K1K2J1J2H1H2G1G2G3F1F2F3E1E2E3E4D1D2D3C1C2B1A1B2A2C3B3A3D4C4B4A4D5C5B5A5D6C6B6A6C7B7A7C8A13
B14A14C13
R17R18
T20U20
T19T18T17
R19
E6E7E8E9
E10E11E12E13E14E15T6T7T8T9
T10T11T12T13T14T15
P4
JP7JP6JP5JP4JP3JP2JP1JP0
JPCLK
JPHSJPHREF
MADDR13MADDR12MADDR11MADDR10MADDR09MADDR08MADDR07MADDR06MADDR05MADDR04MADDR03MADDR02MADDR01MADDR00
MDQ63MDQ62MDQ61MDQ60MDQ59MDQ58MDQ57MDQ56MDQ55MDQ54MDQ53MDQ52MDQ51MDQ50MDQ49MDQ48MDQ47MDQ46MDQ45MDQ44MDQ43MDQ42MDQ41MDQ40MDQ39MDQ38MDQ37MDQ36MDQ35MDQ34MDQ33MDQ32MDQ31MDQ30MDQ29MDQ28MDQ27MDQ26MDQ25MDQ24MDQ23MDQ22MDQ21MDQ20MDQ19MDQ18MDQ17MDQ16MDQ15MDQ14MDQ13MDQ12MDQ11MDQ10MDQ9MDQ8MDQ7MDQ6MDQ5MDQ4MDQ3MDQ2MDQ1MDQ0MCLK
MWENMCASnMRASn
OVR/MDQ65OVG/MDQ66
OVB/MDQ70OVI/MDQ72
OVFB/MDQ69OVS/MDQ68OHS/MDQ67
OVCLK
MDQ76MDQ77MDQ78MDQ79MDQ80MDQ81MDQ82MDQ83MDQ84MDQ85MDQ86MDQ87MDQ88MDQ89MDQ90MDQ91MDQ92MDQ93MDQ94MDQ95
SDAO/MDQ64
POWER SECTION
I123D
t0932
F5 H5
K5 M5
P5 U6
D8
D10
U11
D12
U13
D14
G16
J16
L16
N16
G5
J5 L5 N5
D9
U10
D11
U12
D13
H16
K16
M16
V2W1
V1 V3
H8
H9
H10
H11
H12
H13
J8 J9 J10
J11
J12
J13
K8 K9 K10
K11
K12
K13
L8 L9 L10
L11
L12
L13
M8
M9
M10
M11
M12
M13
N8
N9
N10
N11
N12
N13
VDD
25VD
D25
VDD
25VD
D25
VDD
25VD
D25
VDD
25VD
D25
VDD
25VD
D25
VDD
25VD
D25
VDD
25VD
D25
VDD
25VD
D25
VDD
33VD
D33
VDD
33VD
D33
VDD
33VD
D33
VDD
33VD
D33
VDD
33VD
D33
VDD
33VD
D33
VDD
AM
VDD
AP
VSSA
MVS
SAP
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
R371
NC
PD9TP7
C431470uF/16V
R378 47R
C443100n
C442100n
C441100n
R379 NCR380 0R
R377 47R
C562100uF/16V
TP11TP10
TP13TP12
TP15TP14
C558100n
C554100n
C560100n
C559100n
6.8 Scalar/Sdram
ViewSonic Corporation Confidential - Do Not Copy N2750w-1 18
CMO 27" PANEL INTERFACE ONLY
AU 26" OR H_STAR 23" PANEL INTERFACE ONLY
R498~R504 CMO 23" AND 32" USE ONLY
ATX2+
ATX1-
FFD_DE
FFD_CLK
ATX3+
FFD_HS
ATX0-
ACLKTX+
ATX1+
FFD_VS
ATX0+
ATX3-
LVDSSHT
ATX2-
ATX0-ATX0+
ATX1+ATX1-
ATX2-ATX2+
ATX3-ATX3+
ACLKTX-ACLKTX+
PGA2
PBA0
PGA0
PRA6
FFDBA5
FFDRA2
FFDGA5
PGA2
PRA0
FFDGA2
PRA5
PRA1
FFDBA7
PBA0
PRA0
FFDBA6
PGA6
PGA7
FFDGA3
PBA7
FFDRA6
PRA2
FFDBA2
FFDGA7
PGA3
PBA1
FFDRA1
PGA4
PBA4
PRA7 PRA7
PBA2
PBA6
PRA3
FFD_CLK
PVSYNC
PBA3FFDBA4
PRA4
PBA3
PGA3
PBA4
PGA1
FFDGA4
FFDRA5
FFDGA1
FFD_VS
FFDRA4
PHSYNC
PGA4
PRA5
PGA6
PDE
PGA5
PBA6
PRA1
PGA7
PRA3
FFDGA6
FFDBA1
FFDRA3
DCLKI
PRA6FFDRA7
FFDGA0
PBA2
PBA5
FFD_HS
PGA1
PGA5
PBA5
PRA2
FFDRA0
PBA1
PRA4
PGA0
FFDBA3
PBA7
FFDBA0
FFD_DE
FFD
BA3
FFD
BA2
FFD
BA1
FFD
BA0
FFD
BA7
FFD
BA5
FFD
BA4
FFD
BA6
FFD
GA0
FFD
GA1
FFD
GA3
FFD
GA2
FFD
GA5
FFD
GA6
FFD
GA4
FFD
GA7
FFD
RA3
FFD
RA2
FFD
RA1
FFD
RA0
FFD
RA7
FFD
RA5
FFD
RA6
FFD
RA4
FFDBA6
FFDRA4
FFDGA2FFDGA1
FFDRA7
FFDBA2
FFDBA0
FFDGA6
FFDRA6
FFDBA3
FFDGA7FFDGA0
FFDGA5
FFDBA1
FFDBA4
FFDGA4
FFDRA3FFDRA2
FFDBA7
FFDRA5
FFDBA5
FFDGA3
FFDRA1FFDRA0
IN2+
IN1-
FFD_DE
FFD_CLK
IN3+
FFD_HS
IN0-
CLK-CLK+
IN1+
FFD_VS
IN0+
IN3-
LVDSVCCA
PLLVCCA
IN2-
FFDBA6
FFDRA4
FFDGA2FFDGA1
FFDRA7
FFDBA2
FFDBA0
FFDGA6
FFDRA6
FFDBA3
FFDGA7FFDGA0
FFDGA5
FFDBA1
FFDBA4
FFDGA4
FFDRA3FFDRA2
FFDBA7
FFDRA5
FFDBA5
FFDGA3
FFDRA1FFDRA0
LVDSSHT
DCLKI
IN0-IN0+
IN1-IN1+
IN2-IN2+
CLK-CLK+
IN3-IN3+
PLLVCCA
LVDSVCCA
ACLKTX-
PRA[0..7]8
PGA[0..7]8
PBA[0..7]8
PHSYNC8
PCLK8PDE8
PVSYNC8
LVDSPDN 11
LVDSPDN 11
Vpnl
+3V3
+3V3
+3V3
+3V3
+3V3
+3V3
+3V3
+3V3Vpnl
+3V3
+3V3R393 22R
R397
0R
CP04
NC
C47847uF/16V
C48047uF/16V
C479
100n
L170
BEAD/200R
C481
100n
L171
BEAD/200R
CP05
NC
CP06
NC
R396 100R
I129
NC
5152545556
2
3
467
810
111214
15
1618
192022
31
32
484746454241
4039
44
494336
34
3533
513212953
1 9 17 26
50
2324
25272830
3837
TXIN0TXIN1TXIN2TXIN3TXIN4
TXIN5
TXIN6
TXIN7TXIN8TXIN9
TXIN10TXIN11
TXIN12TXIN13TXIN14
TXIN15
TXIN16TXIN17
TXIN18TXIN19TXIN20
TXCLKIN
PWRDWN
TXOUT0-TXOUT0+TXOUT1-TXOUT1+TXOUT2-TXOUT2+
TXCLKOUT-TXCLKOUT+
LVDSVCC
LVDSGNDLVDSGNDLVDSGND
PLLVCC
PLLGNDPLLGND
GNDGNDGNDGNDGND
V V V V
TXIN27
TXIN21TXIN22
TXIN23TXIN24TXIN25TXIN26
TXOUT3-TXOUT3+
R395
10K
R498
NC/0R
R504NC
R503NC
R502NC/4.7K
R501
NC/0RR
R500
NC/0R
R499
NC
C48
710
0n
C48
910
0n
C49
010
0n
C48
810
0n
R389
0R
CP03
NC
RP23 47RX4
1
5
2
63
7
4
8
RP18 47RX41
5
2
63
7
4
8
RP19 47RX4
1
5
2
63
7
4
8
RP20 47RX41
5
2
63
7
4
8
RP21 47RX4
1
5
2
63
7
4
8
RP22 47RX41
5
2
63
7
4
8
R394 0R
L173
BEAD/200R
C48347uF/16V
C48
2N
C
C484
100n
CP01
NC
R390 0RR391 0RR392 0R
C48547uF/16V
C486
100n
L172
BEAD/200R
I128
t0383
5152545556
2
3
467
810
111214
15
1618
192022
31
32
484746454241
4039
44
494336
34
3533
513212953
1 9 17 26
50
2324
25272830
3837
TXIN0TXIN1TXIN2TXIN3TXIN4
TXIN5
TXIN6
TXIN7TXIN8TXIN9
TXIN10TXIN11
TXIN12TXIN13TXIN14
TXIN15
TXIN16TXIN17
TXIN18TXIN19TXIN20
TXCLKIN
PWRDWN
TXOUT0-TXOUT0+TXOUT1-TXOUT1+TXOUT2-TXOUT2+
TXCLKOUT-TXCLKOUT+
LVDSVCC
LVDSGNDLVDSGNDLVDSGND
PLLVCC
PLLGNDPLLGND
GNDGNDGNDGNDGND
V V V V
TXIN27
TXIN21TXIN22
TXIN23TXIN24TXIN25TXIN26
TXOUT3-TXOUT3+
C47
710
0n
R388 0R
C47
610
0n
CP02
NC
C47
410
0n
C47
510
0n
R387
10K
P114
CON 2X15 2mm
123456789101112131415161718192021222324252627282930
P115
NC
1234567891011121314151617181920
6.9 Panel Output
ViewSonic Corporation Confidential - Do Not Copy N2750w-1 19
SP_R_OUTP
SP_L_OUTN
SP_R_OUTNSP_L_OUTP
AUDIO_R_AMP
AUDIO_L_AMP
AUDIO_R_AMPAMP_STBY
AUDIO_L_AMP
MODEMODE
AUDIO_L_AMP5
AUDIO_R_AMP5
AMP_STBY11
SCLSDA
AMPPVCC
AMPPVCC
AMPPVCC
AMPPVCC
AGND
+12V
AGND
AGND
AGND
VCCV
AGND
AGND AGND
AGNDVCCV
R507
4.7K
Q109
MMBT3904
13
2
R506 0R
R505 0R
R508
1K
P123
CON9
123456789
C57
333
0p
C57
233
0p
P117
PHONE_JACK
54321
R401 NC
C516
NC
C526
47uF/16V
C512 NC
C511
NC
R412 10K
C506
NC
C495 NC
C500
NC
L174NC
R413 10K
C498
NC
R404
NC
R402 NC
C504
NC
C499
NC
C513
NC
C496 NC
L178 NC
C509
NC
L177 NC
R41
41K
L175 NC
L176
NC
C503
NC
C521
NC
R400 NC
C502 NC
C510
NC
R411 68K
C501 NC
R405
NC
C497 NC
R41
51K
R403 NC
C520
1u/16V 0603
R41010K
C514
NC
P116
NC
1234
R409 NC
R398 NC
C522
NC
R408 NC
C519
1u/16V 0603
C524
47uF/16V
R416 68K
I131
TPA6110A2
1
23
45
6
7
8
BYPASS
GNDSTANDBY
IN2VO2
VDD
VO1
IN1
C525
1u/16V 0603
C51810uf/50V
+C493NC
C515
NC
R406
NC
C491
NC
C505
NC
R407NC
R399NC
I130
NC
1
2
3
4
5
6
7
89
10
11
12
1314151617
1819
2021
24
2223
25
26
27
28
29
30
3132
33
34 35 36
3738394041
4243
4445464748
SDZ
R_INN
R_INP
V2P5
L_INP
L_INN
AVDDref
VrefVARDIFFVARMAX
VOL
REFGND
BSLNPVCCLPVCCL
L_OUTNL_OUTN
PGNDLPGNDL
L_OUTPL_OUTP
BSLP
PVCCLPVCCL
VCLA
MPL
AGND
ROSC
COSC
AVDD
AGND
VAR
OU
TL
VAR
OU
TR
AVC
C
MO
DE
MO
DEB
VCLA
MPR BSRP
PVCCRPVCCR
R_OUTPR_OUTP
PGNDRPGNDR
R_OUTNR_OUTN
PVCCRPVCCR
BSRN
C517 NC
C508 NC
C507 NC
C523470n
C494 NC
C492
NC
R513
4.7K
R442
0R
6.10 Audio Phone Jack
ViewSonic Corporation Confidential - Do Not Copy N2750w-1 20
IIC TESTER
ISP
Reserved for externalphotoframe daughter board Reserved
for pixelbased OSD
Reserved for 128K ISP74AHC00D is reservedfor pixel OSD withJPEG module exist atsame time
KEY DEFINE CHANG TO JEAN
B1-HREFB2-VREFB3-FIELDB5-HSB6-VS
Reserved for 128K ISP
BOARD BOTTOMBOARD TOP
Debug PortMCUReset
Change nets
A7
A5
A0
A4
A1A2A3
A6
A13
A8
A12
A10A9
A14
A11
ISPWRPSEN
D5D6
D4
D7
D0D1
D3D2
A15
SCLSDA
EEWPn
JP7
JP4
A14A15
PSEN
CDRDY
CDRDRE
JP6
JP3
CDCS1ALE
RESETn-C
CDA0WP
JP0
A8
CDRWRE
A6
A9A10A11A12A13
A0A1
A4A5
D5
JP5
CDCS0CLE
A3
CDA1CE0
A2
D0D1D2D3D4
D6D7
A7
JP_RxD
CDA1CE1
JP2JP1
MCUXout
ALE
EAN
USBD-USBD+
TTfc-RSTnLED2LED1
PANELPWRJP_TxD
BACKLITn
TTFC-INTnIR_INT
PHDPDP
ISPWR
EEWPn
SCLSDA
JP_RDYISP_SW
BANK_SEL
MCUXin
JP_RxD
P25_INCP24_DEC
P23_DOWN
LED2
P21_ENTERP22_UP
LED1
IR_INT
P26_MENU
P27_POWERSWP26_MENU
P22_UP
P24_DECP23_DOWN
P25_INC
JP1JPD1
JP6
JP3
JPD7 JP7
JPD2
JP0
JPD4JPD3
JPD0
JP5JPD6
JP2
JP4JPD5
CDA1CE1
SCLSDA
ISP_SW
CDRWREJP_PX_sel
JPCLKin
JP_PX_sel
CDRWRE
LED_GLED_R
P21_ENTER
JP_RDY
JPD1
BIG5
BIB2
JPCLKin
JPD5
JPD3
JPHS
JPD2
BIG0
BIG3
BIB3
JPD6
JPHREF
BIG6JPD7 BIG7
BIB5
BIB1
JPD0
BIB6
BIG1
JPHS
JPD4 BIG4
BIG2
CDA1CE0
CDRDY
CDCS1ALE
JP4
CDRWRE
CDRDRE
CDCS0CLE
CDA0WP
JP0JP1
JP5
JP3
JP7
JP2
JP6
DMINUSUSBD-USBD+ DPLUS
P27_POWERSW
D1D2
A4
D3
D0
A1
D4
A3
A6A5
D7
D5
A0
D6
A12A15
BANK_SELA7
A2
A11
ALE
MCUXin
A14
A9A8
ISPWR
A10
A13
RESETn-C
JP_RxDJP_TxD
PSEN
RESETn-C
JSPI_CS
JSPI_CLKJSPI_REQ
JSPI_REQ
JP_RDY
VD_RSTnJPHS
SDAJP_DET
JP_RST
JPD0
JPD4
JSPI_CLK
JPD2
JPD6
JP_PX_sel
JP_TxD
JPCLKin
JPHREF
JPD5
JP_RxD
JPHOST_HS
JPD3JPD1
SCL
JPD7
JPVS
JSPI_CS
ISP_SW
JPVS
JSPI_CLK
SCL
P22_UP
P25_RIGHT
P23_DOWN
JP_TxD
AF_SEL0
P24_LEFT
AF_SEL1
BACKLITn
P21_AUTO
P26_MENU
LVDSPDN
SDA
VD_RSTn
P20_AVSEL
LED1
PANELPWR
P27_POWERSW
IR_INT
EEWPn
JP_RxDTTFC-RSTNLED2
JSPI_REQ
AF_SEL1
PANELPWRAF_SEL0
RESETp-C
JP_TxD
VD_RSTn
AMP_STBY
BANK_SEL
TVM_PWRpSYS_PD
PANELPWR 1BACKLITn 1
PHDPDP 8
TTfc-INTn 8
LVDSPDN 9
SDA 3,4,5,6,7,8SCL 3,4,5,6,7,8
USBDM 3USBDP 3
DDCSDA3DDCSCL3
JP[0..7] 8
JPCLK 8
JPHREF 8
HD_SEL 3
VGA_DET 3
AF_SEL0 4
DVI_PDn 2DVI_SCDT 2
DVI_DET2
AF_SEL1 4AMP_STBY 10
BIG[0..7] 3,7,8
BIB[0..7] 3,7,8
JPCK 8
JPHS8
PANELPWR 1
SCL3,4,5,6,7,8PHDPDP 8
VD_RSTn 5,6,7
BACKLITn 1
SDA3,4,5,6,7,8
HD_SEL3
AF_SEL0 4
LVDSPDN 9
TTfc-RSTn8
AF_SEL1 4
DVI_PDn2
DVI_SCDT2
TTfc-RSTn 8
TVM_PWRp 1
SYS_PD 1
TVM_PWRp 1SYS_PD 1
+3V3
+3V3
+3V3+3V3
+3V3
+3V3MC
+3V3MC
+3V3MC
+3V3MC
VCC
VCC
+3V3MC+3V3MC
+3V3
+3V3
+3V3
+3V3
+3V3MC
+3V3
+3V3
+3V3MC
+3V3
VCC
VMCU
VMCUVCC
VMCU
VCC +3V3MC
+3V3MC +3V3MC
VMCU
R421 NC/10K
R423 NC
R426 NC
R433 NC
I137
24LC16/SO8
1234 5
678PRE
E1E2VSS SDA
SCL/WCVCC
C546NC
R424 0R
R427 100RR425 100R
C543100n
R41
84K
7
USB
MMC
MP3
ROM/ICE CONNECTION PORT
CF / SM CARD INTERFACE
GENERAL PURPOSE PORT
I133NC
789
1011121314
4041424344454647
1718192021222324
5354555657585960
31
33
32
39
7776
118
114113
105
117
115
6364
48
5049
16 34 2561 5287 120
65 78
116
8988858483828180
106
101100999870696867
3456353637
128127126125124123122121
66
226511 7515 102
79 107
119
6286
27282930
9190
929394959697
103
110109
111112
108
38
104
71727374
P00P01P02P03P04P05P06P07
P10P11P12P13P14P15P16P17
P20P21P22P23P24P25P26P27
P30P31
P32/INT0nP33/INT1n
P34P35
P36/WRnP37/RDn
ALE
EAN
PSEN
RSTn
XTALIXTALO
CD_SEL
CD_A1_CE0CD_A2_CE1
CD_RST
CD_CD1
CD_A0_WP
D_PLUSD_MINUS
MP3_CLK
MP3_DMP3_REQ
VCC
o1VC
Co2
VCC
ik1
VCC
o3
VCC
ik2
VCC
o4VC
Co5
VCC
ik3
VDD
AP
CD_CD2
CD_D8_LD0CD_D9_LD1CD_D10_LD2CD_D11_LD3CD_D12_LD4CD_D13_LD5CD_D14_LD6CD_D15_LD7
CD_INTREQ_STB
RXM_A0RXM_A1RXM_A2RXM_A3RXM_A4RXM_A5RXM_A6RXM_A7
P50P51P52P53P54P55P56
P40/RxDP41/TxD
P42P43P44P45P46P47
EPCLK
GN
Do1
GN
Do2
GN
Do3
GN
Dik
1
GN
Do4
GN
Dik
2
GN
Do5
GN
DAP
GN
Do6
GN
Do7
GN
Dik
3G
ND
ik4
TEST1TEST2TEST3TEST4
CD_D6CD_D7
CD_D5CD_D4CD_D3CD_D2CD_D1CD_D0
CD_RDY / RNB
CD_WR_WECD_RD_RE
CD_CS1_ALECD_CS0_CLE
VCC
ik4
P57
CD_SM_CE2
MMC_CLKMMC_CMDMMC_DAT
MMC_VDDE
C530
NC
R41
74K
7
R437NC
R429 NC
L179
BEAD/200R
R432 NC
R439NC
USB
P125NC
123
54
VDDD-D+
GNDNC
C532
NC
C534
NC
C533
NC
C537
NC
C547NC
C528
100n
C536
NC
X106 8MHz
R430100R
Q126MMBT39061
3
2
C535
NC
P119CON4/100mil
1234
C531
NC
C529
100n
+
C56310uF/50V
C55
510
0n
C55
210
0n
R436 4K7
C540
100n
R431100R
I134
NC
1098765
4
3
25
24
21
23
2
26
1
20
22
27
1112 13
15
16
171819
28
14
29
30
31
32
A2A3A4A5A6A7
A12
A15
A11
OE
DQ7
A10
A16
A9
NC
DQ6
CE
A8
A1A0 DQ0
DQ2
VSS
DQ3DQ4DQ5
A13
DQ1
A14
NC
WE
VDD
C54
810
0n
Q127MMBT39061
3
2
R4354K7
C54
510
0n
R43
447
R
C54
910
0n
C55
310
0n
C55
110
0n
P118
NC
1 23 45 67 89 1011 1213 1415 1617 1819 2021 2223 2425 2627 2829 30
I132 NC
123456789
101112131415161718192021222324 25
2627282930313233343536373839404142434445464748NC
NCNCNCNC/SER//B/RE/CENCNCVCCVSSNCNCCLEALE/WE/WPNCNCNCNCNC NC
NCNCNCD0D1D2D3NCNCNC
VSSVCC
NCNCNCD4D5D6D7NCNCNCNC
RP25 NC
1
5
2
63
7
4
8
RP24 NC1
5
2
63
7
4
8
C55
010
0n
C538100n
R428NC
C539
100n
R422
NC
+ C542NC
I136NC/74AHC00D123
68
1145 10
9
1312
14
7
Ain1Ain2Aout
BoutCout
DoutBin1Bin2 Cin1
Cin2
Din1Din2
VDD
GND
C52747uF/16V
C54447uF/16V
I135NC
2 4
5
3
R438NC
R45
610
K
R45
710
K
R450 47R
R447 NC
R420NC
P121NC
1 2
R446 NC
C541 NC/100n
R45
110
KR
452
10K
R45
310
K
R45
410
K
R45
510
K
R490 NCR489 NC
P122
HEADER 13
12345678910111213
RP28 NC1
5
2
63
7
4
8
RP29 NC
1
5
2
63
7
4
8
R449 NCR448 NC
R445 NC
C570
100n
C571
100n
R51
010
KR
511
10K
P120
NC
1 23 45 67 89 1011 1213 1415 1617 1819 2021 2223 2425 2627 2829 3031 3233 3435 3637 3839 40
R492 0R
R497 0R
C566 100n
I140NC
3 2
1
VI VO
ADJ
+ C56910uF/50V
R49110K
R52
8N
C
R52
90R
R49
410
K
R49
610
KR
495
10KC565
22p
R493 1M
X10712MHzC56422p
I138STK6012/128K/PLCC44
35
21
20
10
14151617
23456789
4342414039383736
2425262728293031
191832331311
4422
1 12
23 34
EA/VP
X1
X2
RESET
P3.2/INT0P3.3/INT1P3.4/T0P3.5/T1
P1.0/T2T1.1/T2EXP1.2P1.3P1.4P1.5P1.6P1.7
P0.0P0.1P0.2P0.3P0.4P0.5P0.6P0.7
P2.0P2.1P2.2P2.3P2.4P2.5P2.6P2.7
P3.7/RDP3.6/WR
PSENALE/P
P3.1/TXDP3.0/RXD
VCC
VSS
P4.2
P4.3
P4.0
P4.1
6.11 MCU
ViewSonic Corporation Confidential - Do Not Copy N2750w-1 21
SRS_Lout
SDA
Rin
SRS_Rout
Lin SCL
3V3_SW
VCC
VCC_SRS
V33_SRS
V33_SRS
AGND
3V3_SW AGND
AGND
VCC_SRS
V33_SRS
GND
AGND GND
R622 15.8K
R623 17.8K
C6370.1uF
R61931.6K
C6330.1uF
C6320.1uF
C6360.1uF
R6252.26K
+ C62110uF/50V
+C620 10uF/50V
R6274.87K
+C61710uF/50V
R6263.09K
L601BEAD/200R
R624 22.6KC
626
0.1u
F
R604 100R
R607 0R
R618 11.5K
R61410.5K
R615 11.5K
R608 NC
R603 100R
R611 19.1K
R609 28.7K
R6122.2K
R610 6.34K
R61
65.
76K
C614 NC
C62
80.
1uF
C618NC
C6234700pF
R605 0R
C6300.1uF
R601 0R
R602 0R
I602LT1117-3V3
3
1
2VI
GN
D
VO
C63
90.
1uF
C638100uF/16V
+C615 10uF/50V
C612 15nFC611 0.01uF
+
C6254.7uF/50V
C62
70.
1uF
R61
75.
76K
R6060R
C619 0.22uF
+
C602 10uF/50V
+
C601 10uF/50V
+
C60910uF/50V
AP8210QPLQFP64
I601
49505152535455565758596061626364
123456789
10111213141516
17 18 19 20 21 22 2423 25 26 27 28 29 30 31 32
33343536373839404142434445464748
VREF
VSA2
VDA2
LHP
LHPB
LHPA
RH
PR
HPB
RH
PAM
IXO
UT
CB3
CB3
BC
B2C
B2B
CB1
CB1
B
FOUTCLPBCLPCOMPC2COMPCMULTINBASSOUTPUNCHINRVOLIRMAXOLMAXOLVOLIOUTPUTROUTPUTLVDA1VSA1
CH
1LC
H1R
CH
3LC
H2L
CH
3RC
H3R
CH
4RC
H4L
NC
1N
C2
NC
3N
C4
NC
5N
C6
GN
DSC
L
SDARSTB
A0VCC
FSUMIFSUMLROFMINRLO
FMINRLO2FSPACEI
NC7NC8NC9
NC10NC11NC12
VREFB
+
C60610uF/50V
+C610 10uF/50V
C616 0.47uF
C613 NC
R67
9N
C/1
0K
+C605 10uF/50V
C6290.1uF
+
C63110uF/50V
+C603
10uF/50VC6040.1uF
C607 0.1uFC608 0.1uF
C635
0.1uF
R61310.5K
R62042.2K
C634
0.1uF
R62163.4K
C6220.1uF
L602BEAD/200R
R68
0N
C/1
0K
C624 0.1uF
6.12 SRS
ViewSonic Corporation Confidential - Do Not Copy N2750w-1 22
CONNECT TO V12AMP
CONNECT TO VCC
GND GNDP
Lin
RinMute
MODE
Lin
Mute
SP_R_OUTP
SP_L_OUTN
SP_R_OUTNSP_L_OUTP
MODE
SP_L_OUTP
SP_L_OUTN
Rin
SP_R_OUTP
SP_R_OUTN
V12AMPRin
Lin
SDASCL
SRS_Lout
SRS_Rout
GNDIN
VCC
VCCL3V3_SW
V12R1
V12L1
VCCR
V12L1
V12R2
V12L1
V12R1
V12L1
V12R1
GNDIN
GNDLB
GNDLE
GNDRA
GNDLA
GNDRB
GNDGNDP
V12AMP
GNDRC
GNDIN
GNDIN
VCCR VCCL
GNDRC
GNDRC
GNDLC
GNDLA
GNDRA
GNDLAGNDLA
GNDLA
GNDRA
GNDRA
GNDRA
V12L1
V12R1
V12R1
V12L2
V12L2 V12R2
GNDRC GNDLA GNDRAGNDLEGNDREGNDLBGNDRB GNDLC
GNDRE
GNDP
R635
1K
+
C669
10uF/50V
+ C666
33uF/50V
+
C65033uF/50V
R647
1K
R638
1K
C644
180pF
C662
1uF/63V
C641
15pF
C665
0.1uF
Q601MMBT3906
C653
0.1uF
C667
0.1uF
R63939K
R669 0R
R661NC
C643 22pF
C673
0.1uF
R668 39K
R665NC
R634NC
C6540.1uF
R643
5.1K
C671
22pF
R6400R
C668
1uF/63V
C672
180pF
C664
NC
+ C676
100uF/16V
L60615uH
L60515uH
R6331R
C6570.1uF
R662100K
R6521R
P601
CON9
123456789
R6571R
C640
180pF
+C652
33uF/50V
C658
0.1uF
R6293.3K
I604
YDA135
1
2
3
4
5
6
7
8
9
10
11
12
13 14 15 16 17 18 19 20 21 2422 23
25
26
27
28
29
30
31
32
33
34
35
36
373839404142434445464748
N/C
VREFL
VSSL
MUTE
SLEEP
PROT
N/C
TPP
TEST
VSSR
VREFR
N/C
VDD
R
INR
NFI
NR
NFP
R
NFN
R
N/C
CD
OR
CD
IR
N/C
SEN
SEN
R
SEN
SEPR
PVD
DR PVSSR
N/C
HP_R
HN_R
LN_R
LR_R
LP_L
LN_L
HN_L
HP_L
N/C
PVSSLSEN
SEN
L
PVD
DL
SEN
SEPLN/C
CD
IL
CD
OL
N/C
NFN
L
NFP
L
NFI
NL
INL
VDD
L
C646
0.1uFC647
NC
P603
4 HEADER
1234
R65110K
C655
1uF/63V
C649
1uF/63V
+ C663
33uF/50V
R664
0R/0.5W
R672
2.4KR6712.4K
R628
3.3K
R681NC
C677
NC
R65010K
P602
CON_2.54mm_4
1234
I608
MC78L05_TO252
1 3
2
IN OUT
G
C651
NC
R641NC
R6321R
I607
FW332
2
1
3
4 5
6
7
8
NG
NS
PS
PG PD
PD
ND
ND
I606
FW332
2
1
3
4 5
6
7
8
NG
NS
PS
PG PD
PD
ND
ND
I605
FW332
2
1
3
4 5
6
7
8
NG
NS
PS
PG PD
PD
ND
ND
C674
180pF
I603
FW332
2
1
3
4 5
6
7
8
NG
NS
PS
PG PD
PD
ND
ND
R682NC
C678
NC
R6441R
R631
1K
R646NC
R645
0R/0.5W
R648100K
C6420.1uF
R670
1K
R6300R/0.5W
R6631R
R6362.4K
C656
NC
R6751R
R6761K
R6550R/0.5W
R65
410
0K
R673
1K
R666NC/0R
R65
910
0K
R65610K
C675
15pF
R653NC
R6372.4K
R667
5.1K
R649NC
+ C645
1000uF/16V
+ C659
1000uF/16VC661
NC
+
C648
10uF/50V
L60415uH
R6773.3K
R683NC/10K
R642NC/0R
C670
NC
R6581R
R6783.3k
R660NC
L60315uH
R67451R/1206
2
1
C660
0.1uF
6.13 Audio AMP
ViewSonic Corporation Confidential - Do Not Copy N2750w-1 23
VOL-DEC
VOL+INC MENU DOWN UP OK
POWER
IR
LED
2202129900
5VD
LED_G
IR_IN
KEY1_OKKEY2_UP
KEY5_DEC
KEY0_MENU
KEY3_DOWNKEY4_INC
LED_R
PWRON
GND
GNDGND
GND
P711
CON6_2mm
123456
D711
S701I711
CAM-1538TP5
1 2 3
VOU
TG
ND
VCC
S705 S702 S703 S704 S706 S707
P701
CON7_2mm
1234567
D721
NC
S721
I721NC
1 2 3
VOU
TG
ND
VCC
6.14 Key-Pad IR
ViewSonic Corporation Confidential - Do Not Copy N2750w-1 24
7. Working Theorem
A. A/D converter (PC) The ADC is to convert RGB analog signal to digital signal that scaling chip can acknowledge .The AD9883 is a complete 8-bit 110 MSPS monolithic analog interface optimized for capturing RGB graphic signal, a +3.3V power supply is necessary. Its 110 MSPS encode rate capability and full-power analog Bandwidth 110 MHz supports display resolutions of up to 1280*1024 at 60 Hz. A clamp signal is generated internally or may be provided through the CLAMP input pin .This device is fully programmable via a two-wire serial port. The HSYNC input receives a logic signal and provide the frequency reference for pixel clock generation. The clock generator COAST input may be used to stop synchronizing with HSYNC and continue producing a clock at its present frequency and phase . The CLAMP logic input may be used to define the time during which the input signal is clamped to GND , establishing a black reference. When the Power Down control input is bringing to low, AD9883 is put into a very low power dissipation mode ,all the output buffers are placed in a high-impedance state.
B. Video Decoder (video) The t0956 is a hightly integrated NTSC,PAL,and SECAM video decoder support for high quality LCD-TV video applications. With an embedded SDRAM controller, t0956 supports NTSC/PAL chroma and luma separation using a 3-dimensional adaptive comb filter for reducing the cross-luma and cross-chroma artifacts.The frame buffer is also usec for 3D noise reduction circuit that resumes good visual quality when the input signal is a noisy video source The three 9-bits 108-MSPS A/D converters in the t0956 chip can be used for digitalizing RGB from PC or YPbPr component signals as well. Piior to each channel contains the AGC and clamping circuits with paogrammable gain and offset. A total of 10 video input terminals can be configured to combinations of RGB, YPbPr , CVBS, S-Video inputs. The component, composite, or S-Video signals are sampled at a free-run external clock frequency(20~80 MHz). After the video decoder processing, the video data was sent out with a line-locked alignment rate(27 MHz). The t0956 comes with 128-pin QFP package.
C. DVI input The SiI169 Receiver uses PanelLink Digital technology to support HDTV and high-resolution digital displays for DTV and PC applications. It features High-bandwidth Digital Content Protection (HDCP) for secure delivery of high-definition video in consurmer electronics products. The SiI160 comes with integrated,pre-programmed HDCP keys, greatly simplifying manufacturing and providing the highest level of security. For improved sase of use, the SiI169 has enhanced jitter tolerancd and low-power standby mode. PanelLink Digital technology is the world’s leading DVI solution
D. Scaling controller The t0932 chip is a LCD-TV controller chip for color display up to SXGA or 1400*1050 wide screen panel.It includes a 96/64-bits controller for frame rate conversion and 3D interlace-to progressive video processing. It also supports non-linear scaling for 4:3 to/form 16:9 conversion, flexible picture in video display, cinema to TV conversion, hue/saturation adjustment, and advanced OSD system. The t0932 chip is targeted for the applications of high-end LCD-TV. It will accept all HDTV video signals for flat panel display. It comes with 336-pin and 316-pin BGA package.
ViewSonic Corporation Confidential - Do Not Copy N2750w-1 25
General Feature: ! 96/64-bit DRAM controller for interlaced to progressive video processing and fram-rate
conversion for computer graphics. ! PIP(picture in picture) ! On chip advanced OSD and pixel-based OSD from JPEG port. ! Hardware mode detection for HDTV. ! Two sets of mode detection for flexible simultaneous main-and sub-picture display. ! Copy protection detect and display enable. ! On chip hue, saturation, brightness, contrast, and gamma correction. ! Max pixel rate up to 135 MHz. ! Video Black White Expansion. ! Flesh tone adjustment. ! Improved temporal-spatial dithering. ! Non-linear scaling for 4:3 to/form 16:9 conversion. ! Auto cinema mode detection, 3:2/2:2 pull-down, and 3D de-interlacing. ! Desk and ceiling mode for projector application. ! PWMs(Pulse Width Modulators) from 28K to 100Hz.
E. Audio Three audio sources put into MSP 3425G or MSP 3445G which fist select the sources and do pre-amplify. The bass rrelbe control also be provided. The conrol of all the functions is accomplished by serial bus. Audio amplifier put into IC YDA135 is a class-D amplifier that is output power of 20W/channel on a 12V power supply operation . The AP8210 SRS WOW Universal Audio Processor(UAP) isan extraordinary and highly single chip audio enhancement processor based on SRS Lab Inc.’s patented WOW technology.
F. Tuner The Antenna receive the TV signal and modulate it to the CVBS signal which can be recognized by the decoder and FM-stereo/FM-mono/NICAM audio signal output to the sound Automatic standard decoder IC MSP3425G or MPS3445G. The MCU can automatic detect the tuner and send order by serial bus.
ViewSonic Corporation Confidential - Do Not Copy N2750w-1 26
MAIN PCB POWER PCB
KEYPAD PCB
P904
P902P903
P101
P114
P126
P115
P105P106P107
P122
P112
P118
P701
P711
P601
P602P603P108
P111P117
P113
P116
P110
IR PCB
AUDIO PCB
CN2 CN3
CN1
P908
P905
W901
SPK(R)SPK(L)
W901
P906
P907
P123
LCD PANEL
LCD PANEL
8. Wiring Diagram
ViewSonic Corporation Confidential - Do Not Copy N2750w-1 27
9. PCB Layout Diagrams9.1 MAIN PCB TOP VIEW
ViewSonic Corporation Confidential - Do Not Copy N2750w-1 28
9.2 MAIN PCB BOTTOM VIEW
ViewSonic Corporation Confidential - Do Not Copy N2750w-1 29
9.3 AUDIO PCB TOP VIEW
ViewSonic Corporation Confidential - Do Not Copy N2750w-1 30
9.4 AUDIO PCB BOTTOM VIEW
ViewSonic Corporation Confidential - Do Not Copy N2750w-1 31
9.5 KEYPAD PCB TOP VIEW
ViewSonic Corporation Confidential - Do Not Copy N2750w-1 32
9.6 KEYPAD PCB BOTTOM VIEW
ViewSonic Corporation Confidential - Do Not Copy N2750w-1 33
9.7 IR PCB TOP VIEW
ViewSonic Corporation Confidential - Do Not Copy N2750w-1 34
9.8 IR PCB BOTTOM VIEW
ViewSonic Corporation Confidential - Do Not Copy N2750w-1 35
10. Trouble Shooting Flow Chart
10.1. NO POWER
Remove P101Check+12V
ReplacePower Board
Start
12VOn C101
5V on C106
5V on C115
CheckI101,D101,I104,I1
10
CheckI103,D103,I114,I131
3.3V on C119
No
Yes
No
No
No
Yes
Yes
Yes
3.3V on C145
Yes
2.5V on C431
CheckI105,I128
CheckI109
CheckI116,I123
No
No
No
ViewSonic Corporation Confidential - Do Not Copy N2750w-1 36
10.2. NO VOICE
Che
ckI1
11 P
IN14
?R
epla
ceI1
11
Che
ckP1
10Pi
n3,P
in4?
Che
ckAu
dio
Inpu
t
Che
ckP1
10Pi
n1,P
in2?
Che
ckAu
dio
inpu
t
Che
ckI1
13Pi
n3, P
in13
?
Che
ckI1
14Pi
n20,
Pin2
1?
TVA
V,S-
Vide
oYC
bCr
No
No
No
Yes
Yes
Yes
Rep
lace
I113
Che
ckI6
01Pi
n13,
Pin1
4?
Rep
lace
I114
No
Yes
Yes
No
Che
ckP1
11Pi
n2,P
in5?
PC
Che
ckAu
dio
inpu
t
Yes
Che
ckI6
04Pi
n27~
34?
Yes
Che
ckSp
eake
r
Yes
No
Rep
lace
I601
No
Rep
lace
I604
No
ViewSonic Corporation Confidential - Do Not Copy N2750w-1 37
10.3. NO DISPLAY
C
heck
I111
PIN
12ha
s si
gnal
Rep
lace
I112
Che
ckI1
16 P
IN53
has
sign
al?
Che
ckR
518,
C27
4L1
44, R
260
Che
ckI1
16 P
IN52
has
sign
al?
Che
ckR
517,
C27
3L1
51, R
265
Che
ckI1
16 P
IN51
has
sign
al?
Che
ckR
516,
C27
0C
145,
R26
1
Che
ckI1
03 is
wor
king
?
Che
ckI1
16 h
as o
utpu
tsi
gnal
at R
P30?
TV m
ode
AV
mod
eS-
Vide
o m
ode
YCbC
r mod
e
No
No
No
No
Yes
Yes
Yes
Yes
Rep
lace
X103
Che
ckI1
16 h
as o
utpu
tsi
gnal
at R
P31
Che
ckL1
42 is
3.3
V?
Che
ckI1
23 h
as o
ut p
ut s
igna
l at
RP1
8~R
P23
Rep
lace
I116
Che
ckI1
17
No
Yes
Yes
Yes
Yes
No No
No
Che
ckI1
23,I1
27,X
105
No
Che
ckP1
14,P
IN19
~22,
PIN
11~1
6ha
s LV
DS
sign
al
Yes
Rep
lace
I128
No
Che
ckPa
nel P
ower
5V
Yes
Che
ckPa
nel P
owr C
KTN
o
Rep
lace
LCD
Pan
elYes
ViewSonic Corporation Confidential - Do Not Copy N2750w-1 38
PC and YPbPrmode
Checkpower region Check led color Check I/O cable is OK Check input signal is
Power On
Check I138 resetPress power Key
on/off is ok? Change I138
Press menu Keyif osd display
Check Keypadpcb is ok?
Check Resetcircuit
Check inverter is OK Change Inverter
Check I123 has output signal at RP18~RP23 CheckI123,I127,X105
Check panel power is 5V
dark Amber Yes
Green
No
NoNo
YesNo
Yes
Yes
No
Yes
CheckPanel Power CKT
No
Yes
Change LCD Panel
Yes
ViewSonic Corporation Confidential - Do Not Copy N2750w-1 39
11. Adjustment
11.1. ADJUSTMENT CONDITIONS AND PRECAUTIONS 1. Approximately 30 minutes should be allowed for warm up before proceeding. 2. Adjustments should be undertaken only on those necessary elements since most of them
have been carefully preset at the factory. 3. ESD protection is needed before adjustment.
11.2. MAIN ADJUSTMENTS
NO. FUNCTION DESIGNATION 1. Eeprom Initial Function Key 2. White Balance Function Key
11.3. ALIGNMENT PROCEDURES
Adjustment Conditions and Precautions:
(A). Power supply voltage: AC 110/120V± 10% 60 Hz± 5%, AC 220/240V± 10% 50 Hz ± 5%.
(B). Warm up time: The display must be power ON for at least 30 minutes at full white pattern before starting alignments. This is especially critical in color temperature and white balance adjustments.
(C). Signals: reference the front detail specifications and timing table. Video : reference the front detail specifications.
1. Eeprom Initial: A. Timing : 1024x768@60Hz. B. Pattern : Cross hatch. C. Switch off the power and press the “▲” and “▼ “ key simultaneously, and switch on
the power. At this time we can enter into the factory mode. D. Select the “INITIAL” item and press “enter“key to reset the Eeprom.
2. White Balance Adjustment :
A. Timing : 1024x768@60Hz. B. Pattern : 16 gray. C. Set CA110 color analizer at the center of screen and along a perpendicular to the
screen at 20cm from the display. D. Press menu key select the OSD page on INPUT SELECT and select MAIN:VGA. E. Press menu key change the OSD page to adjust page. F. Press “▼” key to select the “ AD BALANCE” item in the factory mode and press
“enter “key, then the white balance will be auto dadjusted . G. Color temperature verification :
(1) Color temperature medium verify : press “▼” ,“▲” key to move cursor to COLOR TEMPERATURE at factory mode and press “left” ,“right” key set in mediun, and then check the color temperature is
WARM x=0.313 ± 0.03 y=0.329 ± 0.03
ViewSonic Corporation Confidential - Do Not Copy N2750w-1 40
MEDIUM x=0.283 ± 0.03 y=0.298 ± 0.03 COOL x=0.271 ± 0.03 y=0.278 ± 0.03
Y≧300 cd/m2
H. Press menu key select the OSD page on INPUT SELECT and select MAIN:YPbPr Input source : DVD Player
Pattern : color bar. I. Repeat the F and G step.
ViewSonic Corporation Confidential - Do Not Copy N2750w-1 41
Rev: 1c Serial No. Prefix: PJL
Item ECR/ECN ViewSonic P/N Ref.P/N Location Universal number# Q'ty1 AC Power Cord USA PC = 90° 1.83M Black A-00001784 2427130117 P951 12 Remote Control Block JC278A ViewSonic N2750 USA A-00001785 2419200013 13 PCB ASS'Y Block (MAIN) B-00001786 6201-7027146301 14 PCB ASS'Y Block (CON) B-00001787 6202-7027226101 15 PCB ASS'Y Block (AUDIO) B-00001788 6205-7027226101 16 PCB ASS'Y Block (IR) B-00001789 6206-7027226101 17 Cabi Back JC278 ABS 94V0 Black #4001 C-00001790 2022262602 18 Bezel Assembly JC278 ABS 94V0 Black #4001 C-00001791 2603307683 19 Cables: I/O Cable D15/D15 20276(3+6) 1.83M Black CB-00001792 2427501187 P961 1
10 Onwer Guide ViewSonic N2750W VS10576-1M DC-00001793 2001131286 111 Guarant Card ViewSonic N2750W QSG New DC-00001794 2002310434 6P81 112 Electronic LCD Panel CMO V270W1-L03 E-00001795 2212006100 113 Hardware: Bracket, Fix JC278 Base Aluminum Black 4001 HW-00001796 2071870401 114 Carton Box ViewSonic N2750W VS10576-1M P-00001797 2011127001 115 Polyfoam JC278 EPE Up (L) P-00001798 2012177500 6P20 116 Polyfoam JC278 EPE Up (R) P-00001799 2012177600 6P21 117 Polyfoam JC278 EPE Down P-00001800 2012178400 6P22 1
Remark 1: Above listed items are examples, supplier can expand the rows to add more necessary items.Remark 2:
RECOMMENDED SPARE PARTS LIST (N2750w-1 for "M-Model")
DescriptionAccessories:
ViewSonic Model Number: VS10576-1M
All revised RSPLs with newly added items or any change made should be highlighted and correlated with the ECN/ECRapproved by ViewSonic Corporation. This is to eliminate repeated cross checks of each item between this version and prior
Cabinets:
Packing Material:
PC Board Assembly:
Documentation:
ViewSonic Corporation Confidential - Do Not Copy N2750w-1 42
12. Recommended Spare Parts List
ViewSonic Model Number: VS10576-1MRev: 1aSerial No. Prefix: PJL
Item ViewSonic P/N Ref. P/N Location Universal number# Q'ty1 N/A 2024267302 FRONT BEZEL JC278 ABS 94V0 BLACK #4001 1F01 12 N/A 2054256001 ORNAMENT JC278 FRONT BAR ABSHB AL-PLATE 1F02 13 N/A 2033150400 IR COVER JC278 PC LIMPID PANTONE 476C 1F03 14 N/A 2053753901 LED INDIC.-PWR JC278 ABS 94V0 AL-PLATE 1F04 15 N/A 2044266501 FUNCTION KEY JC278 ABS 94V0 AL-PLATE POWER 1F05 16 M-SCW-0824-0285 2084730082 SCREW,BND T+ M3X8(BND T+) 1F06 1F21 1F28 147 N/A 2071971300 METAL FITTG JC278 SECC t=1.0mm FOR PANEL 1F10 18 N/A 2080005200 SCREW,SPE M3*3 TYPE I FOR HS PANEL NI 1F11 109 M-SCW-0824-0811 2080003700 SCREW,SPE 1SZZTER001A M3*6L MSWR17/FZMY1 1F12 1F15 1F29 1F39 36
10 N/A 2072050400 METAL FITTG-I/O JC278 SECC t=1.0mm IO MAIN(U) 1F13 111 N/A 2083730108 SCREW,BND T+ M3X10,T24,F,NI 1F14 1F18 612 N/A 2072050500 METAL FITTG-I/O JC278 SECC t=1.0mm IO SIDE(U) 1F15 113 N/A 2082340102 SCREW,CSK+ SCREW F M4X10 (CSK+) 1F16 1F24 1F31 1914 N/A 2027259402 DUST COVER JC278 ABS 94HB BLACK #4001 1F17 115 N/A 2071971400 METAL FITTG JC278 SECC t=1.0mm FOR SPK 1F19 116 N/A 2071870300 BRACKET,FIX JC278 Aluminum 1F22 117 N/A 2082740122 SCREW,BND+ M4X12 (BND+) 1F23 2C06 1018 N/A 2027259002 DUST COVER JC278 ABS 94V0 BLACK #4001 1F26 119 N/A 2044266601 FUNCTION KEY JC278 ABS 94V0 AL-PLATE FUNCTI 1F27 120 N/A 2071671000 SHIELD PLATE JC278 SECC t=1.0mm 1F30 121 N/A 2083630068 SCREW FMS+ M3X6,M,S-TITE,F,NI 1F32 222 N/A 2080040062 SCREW,SPE M4*8 PMS-3/W 1F33 123 N/A 2072459100 INSULATOR PC FR700 180X130 SONY T4000 1F36 124 PL-HD-0705-0116 2074191000 HOLDER JK1461 JEAN 1F37 125 N/A 2071871100 BRACKET,FIX JC278 SECC T=0.8mm FOR SWITCH 1F38 126 C-00001790 2022262602 CABI BACK JC278 ABS 94V0 BLACK #4001 2C01 127 N/A 2027259202 DUST COVER JC278 ABS 94HB BLACK #4001 2C03 128 N/A 2027259302 DUST COVER JC278 ABS 94HB BLACK #4001 2C04 129 N/A 2027259102 DUST COVER JC278 ABS 94HB BLACK #4001 2C05 130 C-00001876 2071870401 BRACKET,FIX JC278 BASE ALUMINUM BLACK 4001 5B01 131 PL-PD-0714-0069 2039802303 FOOT PAD VA520 CR420xφ16.5x5.8 BLACK 5B02 632 N/A 2082750402 SCREW,BND+ M5X40,M,P,ZN-CC 5B03 433 P-00001797 2011127001 CARTON BOX VIEWSONIC N2750W VS10576-1M 6P01 134 N/A 2055632073 LABEL N2750W VS10576-1M(M) 6P02 135 N/A 2055636028 LABEL N2750W VS10576-1M SMALL LABEL 6P05 136 M-LB-0813-0856 2055613379 LABEL ViewSonic CONTAINER LABEL 6P11 1/937 M-LB-0813-0530 2055617101 LABEL 10*20 HI-POT TESTED 0K 6P13 138 M-LB-0813-0959 2055613392 LABEL VSC HIGH VOLTAGE WARNING LABEL 6P14 139 P-00001798 2012177500 POLYFOAM JC278 EPE UP(L) 6P20 140 P-00001799 2012177600 POLYFOAM JC278 EPE UP(R) 6P21 141 P-00001800 2012178400 POLYFOAM JC278 EPE DOWN 6P22 142 N/A 2055135010 LABEL VIEWSONIC N2750W VS10576-1M 6P50 143 M-LB-0813-0528 2055103400 LABEL JK0936F WEN 6P52 144 M-LB-0813-0002 2056603050 SERIAL LABEL VIEWSONIC LCD SERIAL LABEL 6P56 6P54 6P55 6P51 445 N/A 2013054003 POLYETHY BAG 850X950mm HDPE BAG 6P60 146 DC-00001793 2001131286 OWNER GUIDE VIEWSONIC N2750W VS10576-1M 6P80 147 DC-00001794 2002310434 GUARANT CARD VIEWSONIC N2750W QSG NEW 6P81 148 N/A 2011100017 CARTON BOX 360X220X50mm (WXDXH) BOX(B) 6P85 149 M-MS-0808-1316 2013222536 POLYETHY BAG 250mmx350mmxt0.3 ADD>PE-LD< 6P86 150 N/A 2072257200 HEAT SINK JP166K AL28*28*8H 9H01 151 N/A 2063451300 ADHESI SHEET JC186H PVC 7.5X7.5X3t 9R80 152 N/A 2005100500 BATTERY,DRY R03UG UM3-1.5V TOSHIBA B901 253 E-C-0404-3096 2335310812 CAP,ELE LOW ESR 105'C EC 1000u/ 16V 10*20 P=5.0 K C101 1
54
E-C-0404-3815 2346410496 CAP,CHIP 85'C CS 0603/Y5V/50V 0.1u Z T C105 C107 C110 C111 C114 C116 C122 C124 C125 C126C128 C130 C131 C132 C134 C135 C136 C137 C138 C143C144 C146 C164 C165 C169 C170 C171 C172 C173 C175C176 C177 C178 C181 C182 C183 C184 C186 C187 C188C189 C190 C191 C194 C195 C200 C214 C215 C216 C238C242 C247 C261 C263 C264 C265 C266 C267 C268 C269C270 C271 C273 C274 C275 C276 C278 C279 C280 C281C282 C290 C291 C292 C293 C294 C299 C300 C301 C304C305 C306 C307 C308 C310 C311 C312 C313 C411 C412C413 C414 C415 C416 C417 C418 C419 C420 C421 C422C423 C424 C425 C426 C427 C428 C429 C430 C43 C435C437 C438 C439 C440 C441 C442 C443 C444 C445 C446C448 C449 C450 C451 C452 C453 C454 C455 C456 C457C458 C459 C460 C461 C462 C463 C464 C465 C466 C467C468 C469 C470 C471 C473 C474 C475 C476 C477 C479C481 C484 C486 C487 C488 C489 C490 C528 C529 C538C539 C540 C543 C545 C548 C549 C550 C551 C552 C553C555 C558 C559 C560 C566 C570 C571 C604 C607 C608C622 C624 C626 C627 C628 C629 C630 C632 C633 C634C635 C636 C637 C639 C642 C646 C653 C654 C657 C658C660 C665 C667 C673
206
55 N/A 2335215811 CAP,ELE LOW ESR 105'C EC 1500u/ 10V10*16 P=5.0 C C106 C115 256 N/A 2333347613 CAP,ELE 105'C EC 47u/ 16V 5*11 P=2.5 T C112 C118 2
57 N/A
2341133196 CAP,CHIP 125'C CS 0603/COG/50V 330p J T C117 C201 C234 C235 C285 C287 C297 C302 C314C315 C374 C375 C376 C377 C382 C383 C386 C572C573 C574 C575
21
58 N/A 2333322791 CAP,ELE 105'C EC 220u/ 16V 8*11 P=5.0 T C119 1
59 N/A
2333610613 CAP,ELE 105'C EC 10u/ 50V 5*11 P=2.5 T C123 C127 C129 C133 C139 C197 C198 C202 C204C207 C217 C218 C222 C226 C229 C237 C243 C248C518 C563 C569 C601 C602 C603 C605 C606 C609C610 C615 C617 C620 C621 C631 C648 C669
35
BOM LIST (N2750w-1M)
Description
ViewSonic Corporation Confidential - Do Not Copy N2750w-1 43
Item ViewSonic P/N Ref. P/N Location Universal number# Q'tyDescription60 E-C-0404-3898 2341110096 CAP,CHIP 125'C CS 0603/COG/50V 10p J T C142 C162 2
61 N/A2336310713 CAP,MINI ELE 105'C EC 100u/ 16V 6.3*7 P=2.5 T C145 C168 C180 C246 C262 C303 C309 C432 C434
C436 C561 C562 C638 C67614
62 N/A
2346147396 CAP,CHIP 125'C CS 0603/X7R/50V 0.047u K T C147 RAC148 RAC149 RA
3
63 N/A
2346247396 CAP,CHIP 125'C CS 0603/X7R/25V 0.047u K T C147 RBC148 RBC149 RB
3
64 E-C-0404-4424 2346110396 CAP,CHIP 125'C CS 0603/X7R/50V 0.01u K T C150 C611 265 E-C-0404-4423 2341122096 CAP,CHIP 125'C CS 0603/COG/50V 22p J T C151 C152 C153 C564 C565 C643 C671 766 E-C-0404-4225 2346139296 CAP,CHIP 125'C CS 0603/X7R/50V 3900p K T C154 C284 267 N/A 2336347791 CAP,MINI ELE 105'C EC 470u/ 16V 8*9 P=5.0 T C155 C298 C431 C447 468 N/A 2346139396 CAP CHIP CS 0603/X7R/50V 0.039u K T C156 C286 269 N/A 2349901296 CAP,CHIP SPEC V-PORT0603 22p C159 C160 C161 C179 C185 C192 6
70 E-000009992336347613 CAP,MINI ELE 105'C EC 47u/ 16V 5*7 P=2.5 T C163 C174 C196 C199 C288 C478 C480 C483 C485
C524 C526 C527 C54413
71 E-C-0404-4224 2341147096 CAP,CHIP 125'C CS 0603/COG/50V 47p J T C166 1
72 E-C-0404-48282341110196 CAP,CHIP 125'C CS 0603/COG/50V 100p J T C167 C205 C206 C208 C209 C219 C220 C224 C225
C227 C228 C231 C232 C244 C245 C249 C250 C56718
73 N/A 2346168396 CAP,CHIP 125'C CS 0603/X7R/50V 0.068u K T C203 174 N/A 2341156096 CAP,CHIP 125'C CS 0603/COG/50V 56p J T C221 C223 2
75 E-00003865
2346710596 CAP,CHIP 85'C CS 0603/Y5V/16V 1.0u Z T C230 RAC233 RAC519 RAC520 RAC525 RA
5
76 N/A
2346610596 CAP,CHIP 85'C CS 0603/Y5V/10V 1.0u Z T C230 RBC233 RBC519 RBC520 RBC525 RB
5
77 E-C-0404-3900 2341133096 CAP,CHIP 125'C CS 0603/COG/50V 33p J T C239 C240 C408 C409 478 N/A 2333633513 CAP ELE 105'C EC 3.3u/ 50V 5*11 P=2.5 T C241 179 E-C-0404-4422 2341118096 CAP,CHIP 125'C CS 0603/COG/50V 18p J T C295 C296 2
80 N/A2349901096 CAP,CHIP SPEC AC0603470A 47P±10% INPAQ C366 C367 C368 C369 C370 C371 C372 C373 C378
C379 C380 C381 C384 C38514
81 E-C-0404-5321 2333310713 CAP,ELE 105'C EC 100u/ 16V 6.3*11 P=2.5 T C472 182 N/A 2346747496 CAP,CHIP 85'C CS 0603/Y5V/16V 0.47u Z T C523 C616 283 E-C-0404-3816 2346110296 CAP,CHIP 125'C CS 0603/X7R/50V 1000p K T C556 C557 284 N/A 2346115396 CAP,CHIP 125'C CS 0603/X7R/50V 0.015u K T C612 185 N/A 2346422496 CAP,CHIP 85'C CS 0603/Y5V/50V 0.22u Z T C619 186 N/A 2346147296 CAP,CHIP 125'C CS 0603/X7R/50V 4700p K T C623 187 N/A 2333647513 CAP,ELE 105'C EC 4.7u/ 50V 5*11 P=2.5 T C625 188 N/A 2341118196 CAP,CHIP 125'C CS 0603/COG/50V 180p J T C640 C644 C672 C674 489 E-C-0404-4909 2341115096 CAP,CHIP 125'C CS 0603/COG/50V 15p J T C641 C675 290 N/A 2333310801 CAP,ELE 105'C EC 1000u/ 16V10*17 P=5.0 C C645 C659 2
91 N/A
2301310591 CAP,MTL MEB 1.0u/ 63V P=5.0 J T C649 RAC655 RAC662 RAC668 RA
4
92 E-00000804
2301510591 CAP,MTL CF93M 1.000UF 100V J T C649 RBC655 RBC662 RBC668 RB
4
93 N/A 2333633613 CAP ELE 105'C EC 33u/ 50V 6.3*11 P=2.5 T C650 C652 C553 C666 494 N/A 2364301696 DIODE,SCHOTTKY(SMD) MS22 DO-214AA MOSPEC D101 D103 2
95 E-D-0403-2041
2364600396 DIODE,SWITCH SMD LL4148 DIODES MINIMELF D104 RAD105 RAD106 RAD107 RA
4
96 N/A
2364600496 DIODE,SWITCH SMD MM4148 GRANDE MINI MELF D104 RBD105 RBD106 RBD107 RB
4
97 E-D-0403-1667
2364600196 DIODE,SWITCH SMD LL4148 3.5X1.5φ TEMIC GS08 D104 RCD105 RCD106 RCD107 RC
4
98 M-MS-0808-6352 2363703800 LED LED 3φ GRN/YEL D711 199 A-00001785 2419200013 CONT BLOCK JC278A VIEWSONIC N2750 USA H901 1100 N/A 2365806396 IC,LINEAR(SMD) SI-8050SD 5V/3A SANKEN I101 I103 2101 E-IC-0401-2123 2365807496 IC,LINEAR(SMD) AIC1084-33CM AIC TO-263 I104 RA 1102 E-IC-0401-2745 2365810796 IC,LINEAR(SMD) AP1084K33A(3.3V) TO-263 ATC I104 RB 1103 N/A 2365809196 IC,LINEAR(SMD) CM1084SCN263 CHAMPION SO263 I104 RC 1104 N/A 2365933396 IC,DIGITAL SMD SiI169 TQFP-100 SI I105 1105 N/A 2365104000 IC MEMORY (EEPROM) 24LC22A PDIP-8 MICROCHIP I106 1
106 E-IC-0401-2924
2365808196 IC,LINEAR(SMD) AP1117E-3.3V SOT-223 ATC I107 RAI117 RAI602 RA
3
107 N/A
2365808396 IC,LINEAR(SMD) AIC1117-33CY AIC SOT-223 I107 RBI117 RBI602 RB
3
108 N/A
2365809496 IC,LINEAR(SMD) CM1117SCM-3.3V SOT223 CHAMPION I107 RCI117 RCI602 RC
3
109 E-IC-0401-2017 2365412600 IC,DIGITAL 24LC21A/P MICROCHIP I108 RA 1110 N/A 2365424400 IC,DIGITAL ST24LC21BB6 ST PSDIP8 I108 RB 1
ViewSonic Corporation Confidential - Do Not Copy N2750w-1 44
Item ViewSonic P/N Ref. P/N Location Universal number# Q'tyDescription111 N/A 2365919496 IC,DIGITAL SMD AD9883AKST-110 ANALOG DEVICES I109 1112 N/A 2365915796 IC,DIGITAL SMD ADG774BRQ QSOP-16 ADI I110 RA 1113 E-00003530 2365813796 IC,LINEAR(SMD) TS5V330DR SOIC-16 TI I110 RB 1114 E-00002470 2416901600 UV TUNER FQ1236/F H-3(US) PHILIPS I111 1115 N/A 2365814796 IC,LINEAR(SMD) HEF4052BT SOT109-1 PHILIPS I113 1116 N/A 2365930196 IC,DIGITAL SMD MSP3425G PMQFP64 Micronas I114 RA 1117 N/A 2365930596 IC,DIGITAL SMD MSP3445G-B8 PMQFP-64 Micronas I114 RB 1118 N/A 2365923896 IC,DIGITAL SMD M12L1616A-7 ESMT I115 RA 1119 N/A 2365925596 IC,DIGITAL SMD GLT5160L16 G-LINK TSOP I115 RB 1120 N/A 2365933096 IC,DIGITAL SMD t0956 LQFP-128 Turmpion I116 1121 N/A 2365932896 IC,DIGITAL SMD t-0932 BGA-336L Trumpion I123 1122 N/A 2365103696 IC MEMORY (SDRAM) K4S643232H-TC60 TSOP86 SAMSUNG I124 I125 I126 3123 N/A 2365814596 IC,LINEAR(SMD) AIC1084-25CM TO-263 AIC I127 RA 1124 N/A 2365814696 IC,LINEAR(SMD) CM1084KCN263 TO-263 CHAMPION I127 RB 1125 N/A 2365932996 IC,DIGITAL SMD t0383JS TSSOP-56 Turmpion I128 RA 1126 N/A 2365917896 IC,DIGITAL SMD DS90C383AMTDX TSSOP-56 NS I128 RB 1127 E-IC-0401-2124 2365917996 IC,DIGITAL SMD SN75LVDS83DGG TI I128 RC 1128 E-IC-0401-1932 2365920096 IC,DIGITAL SMD THC63LVDM83A THINE I128 RD 1129 N/A 2365812796 IC,LINEAR(SMD) TPA6110A2 HTSSOP-8 TI I131 1130 E-IC-0401-2269 2365915896 IC,DIGITAL SMD 24LC16B/SN MICROCHIP SO08 I137 RA 1131 N/A 2365100996 IC,MEMORY AT24C16AN-10SI-2.7 SOIC8 ATMEL I137 RB 1132 E-00002108 2365103596 IC MEMORY STK6012Px-5V PLCC-44 Syntek I138 1133 N/A 2365813096 IC,LINEAR(SMD) L78M08CDT TO-252 ST I139 1134 N/A 2365813996 IC,LINEAR(SMD) AP8210Q LQFP-64 ASP I601 1
135 N/A
2360700796 FET P&N-CH FW332-TL-E SOP-8 SANYO I603 RAI605 RAI606 RAI607 RA
4
136 N/A
2360700896 FET P&N-CH SI4532DY SO-8 FAIRCHILD I603 RBI605 RBI606 RBI607 RB
4
137 N/A 2365933196 IC,DIGITAL SMD YDA135 LQFP-148 YAMAHA I604 1138 N/A 2365809796 IC,LINEAR(SMD) L78M05CDT ST DPAK I608 1139 N/A 2419301100 RECEIV BLOCK PL-IRM0206-A538 PARA LIGHT I711 1140 N/A 2433317201 SHIELDING FOAM W17*H17*L20mm K901 2141 N/A 2434325603 SHIELDING TAPE W25*L60*T0.06 (AL) K902 1142 N/A 2434420601 AL SHIELDING TAPE W40*L60mm (AL) K903 2143 E-L-0407-1533 2371154600 COIL,CHOKE JD176 5.2UH 15.5T(REF) L101 L107 2144 N/A 2371140001 COIL,CHOKE 40uH 0.7mm*30.5Ts T50-52B L104 L108 2145 N/A 2379500196 BEAD,HI-CURRENT Z= 80ohm 0805 I=6.0A L106 1
146 E-00003533
2379520196 BEAT,HI-CURRENT Z= 200ohm 0805 I=2.0A L109 L110 L111 L112 L113 L114 L115 L116 L120L125 L126 L127 L128 L131 L132 L139 L148 L150L166 L167 L168 L169 L170 L171 L172 L173 L179
30
147 N/A 2379380096 BEAD,HI-IMPEDANCE Z= 80ohm(100MHZ~) 0603 200mA L117 L118 L119 L121 L122 L123 6148 N/A 2379360196 BEAD,HI-IMPEDANCE Z= 600ohm(100MHZ~) 0603 200mA L129 L130 L134 L135 L136 L137 L138 L140 L141 9
149 E-R-0405-6600
2253200096 RES,CHIP 1/10W RC 0603 1/10W 0 ohm J T L142 L143 R117 R131 R133 R139 R203 R214 R222R223 R232 R233 R234 R235 R236 R374 F377 R380R381 R386 R388 R389 R390 R391 R392 R394 R397R424 R442 R492 R497 R505 R506 R509 R529 R601R602 R605 R606 R607 R640 R669
42
150 N/A 2378633996 WOUND CHIP INDUCTOR 3.3uH 3225 K T L144 L145 L146 L147 L149 L151 L157 7151 E-L-0407-0013 2379101495 FERRITE CORE 3.5X9X0.8 L181 L182 2152 N/A 2371115001 COIL,CHOKE 15uH/ 8*10 UEW 0.5mm/21.5Ts L603 L604 L605 L606 4153 N/A 2404301109 CONNECTOR JST PH 10P SIDE P=2.0 OR EQUAL P101 1154 N/A 2404381106 CONNECTOR 2Ds-0341-001 DVI-D S.E P105 RA 1155 N/A 2404381104 CONNECTOR QH11121-FP0 DVI-D FOXCONN P105 RB 1156 N/A 2407430900 SOCKET (D-SUB) DHSB-15FTF7 BLUE(661C) LEOCO P106 1157 N/A 2405313201 RCA JACK RJ-1165*07-0300A JYE TAI P107 1158 N/A 2405322202 RCA JACK RJ-1144*09-0300A JEY TAI P108 1159 N/A 2405332201 RCA JACK RJ-1146*09-0300A JYE TAI P110 1160 N/A 2405105200 JACK,1P PJ-0008PC-J (577C) KUON YI P111 1161 N/A 2405322201 RCA JACK RJ-1145*IJ-0300A J.T OR EQUAL P112 1162 N/A 2407442900 SOCKET DN-508BS-4 DIN(BLK) PETER'S P113 1163 N/A 2404322130 CONNECTOR 2R1L SIDE P=2.0mm 2046P30HT00 P114 1164 N/A 2405105300 JACK,1P PJ-0008PF-5 (284C) KUON YI P117 1165 N/A 2404300003 CONNECTOR JST XH 4P TOP P=2.5 OR EQUAL P119 1166 N/A 2404301112 CONNECTOR JST PH 13P SIDE P=2.0 OR EQUAL P122 1167 N/A 2404371008 CONNECTOR JST PH 9P TOP P=2.0 OR EQUAL P123 RA 1168 N/A 2404390108 CONNECTOR JWT A2001WV2-9P 9PIN P=2.0mm P123 RB 1169 M-MS-0808-6353 2404301003 CONNECTOR JST XH 4P SIDE P=2.5 OR EQUAL P126 P602 2170 M-MS-0808-5483 2407310108 SOCKET,IC 2.54mmX7.62 08PIN DIP D/L P127 P129 2171 N/A 2404301108 CONNECTOR JST PH 9P SIDE P=2.0 OR EQUAL P601 1172 N/A 2404301103 CONNECTOR JST PH 4P SIDE P=2.0 OR EQUAL P603 1173 N/A 2404301106 CONNECTOR JST PH 7P SIDE P=2.0 OR EQUAL P701 1174 M-MS-0808-6354 2404301105 CONNECTOR JST PH 6P SIDE P=2.0 OR EQUAL P711 1175 N/A 2407001400 SOCKET,ASSY 27" TV INLET+SW P901 1176 N/A 2427410331 WIRE HARNESS 10P H/H 1007#28+120C 330 2/2.5 P902 1177 N/A 2427412332 WIRE HARNESS 12/10P H/H 1007#28+120C L=330 P902 1178 N/A 2427410291 WIRE HARNESS 10P H/H 1007#28+120C 290L P=2 P903 1179 N/A 2427419291 WIRE HARNESS 10/7+12P H/H 1007#28 L=290/240 P903 1180 N/A 2427430203 WIRE HARNESS 30P H/H 1571#28+112C L=200mm P904 1181 N/A 2427404272 WIRE HARNESS 4/2+2P H/A 1007#26 L=100/370mm P905 1182 N/A 2427413901 WIRE HARNESS 13/6+7P H/H 1007#26 L=900/220 P906 1183 N/A 2427409591 WIRE HARNESS 9P H/H 1007#26+128C 590L P=2.0 P907 1184 N/A 2427404381 WIRE HARNESS 4P H/H 1007#24+120C 380L 2/2.5 P908 1185 A-00001784 2427130117 AC POWER CORD USA PC = 90° 1.83M BLACK P951 1186 CB-00003425 2427701893 CABLE RCA 3P(Y/R/W) 2562#26 1.8M BLK P955 1
ViewSonic Corporation Confidential - Do Not Copy N2750w-1 45
Item ViewSonic P/N Ref. P/N Location Universal number# Q'tyDescription187 N/A 2427791890 CABLE EAR(577C)/RCA 2P(R/W) 1.8M BLK P956 1188 N/A 2427501187 I/O CABLE D15/D15 20276(3+6) 1.83M BLACK P961 1189 N/A 2360501196 FET,P-CH SMD AP9435M SO-8 APEC Q101 RA 1190 N/A 2360501696 FET,P-CH SMD SI9435DY SO-8 VISHAY Q101 RB 1191 E-00000916 2360501596 FET,P-CH SMD AO4405 SO-8 AO Q101 RC 1
192 E-Q-0402-1608
2360300896 XISTOR,NPN R SMD MMBT3904 SOT-23 FAIRCHILD Q102 RAQ103 RAQ104 RAQ105 RAQ106 RAQ107 RAQ108 RAQ109 RAQ110 RAQ112 RA
10
193 E-Q-0402-1180
2360301296 XISTOR,NPN R SMD MMBT3904 SOT-23 DIODES Q102 RBQ103 RBQ104 RBQ105 RBQ106 RBQ107 RBQ108 RBQ109 RBQ110 RBQ112 RB
10
194 E-Q-0402-1378
2360300596 XISTOR,NPN R SMD MMBT3904-7 SOT-23 VISHAY Q102 RCQ103 RCQ104 RCQ105 RCQ106 RCQ107 RCQ108 RCQ109 RCQ110 RCQ112 RC
10
195 N/A 2360500896 FET,P-CH SMD FDS4953 FAIRCHILD Q111 RA 1196 N/A 2360500796 FET,P-CH SMD CEM4953 CET Q111 RB 1197 N/A 2360510196 FET,P-CH SMD SI4953DY SO-8 VISHAY Q111 RC 1198 N/A 2360501896 FET,P-CH SMD AP9620M SO-8 APEC Q113 1
199 E-Q-0402-1607
2360100596 XISTOR,PNP R SMD MMBT3906 SOT-23 FAIRCHILD Q126 RAQ127 RAQ601 RA
3
200 N/A
2360100696 XISTOR,PNP R SMD PMBS3906 SOT-23 PHILIPS Q126 RBQ127 RBQ601 RB
3
201 E-Q-0402-1375
2360100396 XISTOR,PNP R SMD MMBT3906-7 SOT-23 VISHAY Q126 RCQ127 RCQ601 RC
3
202 E-R-0405-6411
2253210396 RES,CHIP 1/10W RC 0603 1/10W 10Kohm J T R104 R106 R124 R128 R135 R141 R204 R206 R208R210 R218 R21 R231 R268 R272 R387 R395 R410R412 R413 R444 R451 R452 R453 R454 R455 R456R457 R491 R494 R495 R496 R510 R511 R650 R651
37
203 E-R-0405-6604 2253222296 RES,CHIP 1/10W RC 0603 1/10W 2.2Kohm J T R105 R107 R612 3
204 E-R-0405-6419
2253247296 RES,CHIP 1/10W RC 0603 1/10W 4.7Kohm J T R108 R10 R111 R114 R115 R121 R122 R126 R127R148 R149 R176 R177 R267 R271 R273 R275 R367R417 R418 R435 R436 R507 R512 R513
25
205 E-R-0405-5994 2253315196 RES,CHIP 1/8 RC 0805 1/8 W 150ohm J T R109 1206 E-R-0405-7002 2253251196 RES,CHIP 1/10W RC 0603 1/10W 510 ohm J T R125 1207 E-R-0405-6998 2253210096 RES,CHIP 1/10W RC 0603 1/10W 10 ohm J T R130 R132 R134 R136 R163 5
208 E-R-0405-6409
2253210196 RES,CHIP 1/10W RC 0603 1/10W 100 ohm J T R137 R150 R151 R152 R153 R164 R166 R167 R172R174 R175 R189 R190 R219 R220 R242 R243 R368R369 R396 R425 R427 R430 R431 R514 R515 R516R517 R518 R519 R520 R603 R604
33
209 N/A 2253282196 RES,CHIP 1/10 RC 0603 1/10W 820 ohm J T R154 1210 E-R-0405-6416 2253233296 RES,CHIP 1/10W RC 0603 1/10W 3.3Kohm J T R158 R239 R628 R629 R677 R678 6211 E-R-0405-6603 2253222096 RES,CHIP 1/10W RC 0603 1/10W 22 ohm J T R159 R160 R201 R393 4212 N/A 2253215296 RES,CHIP 1/10W RC 0603 1/10W 1.5Kohm J T R161 1213 E-R-0405-6417 2253247096 RES,CHIP 1/10W RC 0603 1/10W 47 ohm J T R165 R168 R237 R378 R381 R383 R434 R450 8214 E-R-0405-6599 2251207506 RES,CHIP 1/10 RC 1/10W 75.00 F T1608 R169 R170 R171 3215 E-R-0405-7003 2253275096 RES,CHIP 1/10W RC 0603 1/10W 75 ohm J T R178 R179 R180 3
216 E-R-0405-69842253210496 RES,CHIP 1/10W RC 0603 1/10W 100Kohm J T R181 R182 R183 R184 R185 R186 R187 R188 R193
R194 R195 R196 R197 R198 R199 R200 R648 R65420
217 N/A 2253218096 RES,CHIP 1/10W RC 0603 1/10W 18 ohm J T R205 R260 R261 R262 R263 R264 R265 7
218 E-R-0405-64102253210296 RES,CHIP 1/10W RC 0603 1/10W 1Kohm J T R209 R414 R415 R508 R631 R635 R638 R647 R670
R673 R67611
219 N/A 2253215396 RES,CHIP 1/10W RC 0603 1/10W 15Kohm J T R211 R212 R213 R215 R216 R217 R224 R225 8220 N/A 2253256096 RES,CHIP 1/10W RC 0603 1/10W 56 ohm J T R238 R240 R244 R245 R246 R247 R488 7221 E-R-0405-6601 2253210596 RES,CHIP 1/10W RC 0603 1/10W 1Mohm J T R241 R376 R493 3222 E-00002110 2253268396 RES,CHIP 1/10W RC 0603 1/10W 68Kohm J T R411 R416 2223 E-00003527 2253247396 RES,CHIP 1/10W RC 0603 1/10W 47Kohm J T R443 1224 N/A 2251228726 RES,CHIP 1/10 RC 0603 1/10W 28.7Kohm F T R609 1225 N/A 2251263416 RES,CHIP 1/10 RC 0603 1/10W 6.34Kohm F T R610 1226 N/A 2251219126 RES,CHIP 1/10 RC 0603 1/10W 19.1Kohm F T R611 1227 N/A 2251210526 RES,CHIP 1/10 RC 0603 1/10W 10.5Kohm F T R613 R614 2228 N/A 2251211526 RES,CHIP 1/10 RC 0603 1/10W 11.5Kohm F T R615 R618 2229 N/A 2251257616 RES,CHIP 1/10 RC 0603 1/10W 5.76Kohm F T R616 R617 2230 N/A 2251231626 RES,CHIP 1/10 RC 0603 1/10W 31.6Kohm F T R619 1231 N/A 2251242226 RES,CHIP 1/10 RC 0603 1/10W 42.2Kohm F T R620 1
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Item ViewSonic P/N Ref. P/N Location Universal number# Q'tyDescription232 N/A 2251263426 RES,CHIP 1/10 RC 0603 1/10W 63.4Kohm F T R621 1233 N/A 2251215826 RES,CHIP 1/10 RC 0603 1/10W 15.8Kohm F T R622 1234 N/A 2251217826 RES,CHIP 1/10 RC 0603 1/10W 17.8Kohm F T R623 1235 N/A 2251222626 RES,CHIP 1/10 RC 0603 1/10W 22.6Kohm F T R624 1236 N/A 2251222616 RES,CHIP 1/10 RC 0603 1/10W 2.26Kohm F T R625 1237 N/A 2251230916 RES,CHIP 1/10 RC 0603 1/10W 3.09Kohm F T R626 1238 N/A 2251248716 RES,CHIP 1/10 RC 0603 1/10W 4.87Kohm F T R627 1239 N/A 2253600096 RES CHIP 1/2W RC 2010 1/2 W 0 ohm J T R630 R645 R655 R664 4240 N/A 2251210086 RES,CHIP 1/10 RC 0603 1/10W 1 ohm F T R632 R633 R644 R652 R657 R658 R663 R675 8241 N/A 2253224296 RES,CHIP 1/10W RC 0603 1/10W 2.4Kohm J T R636 R637 R671 R672 4242 N/A 2253239396 RES,CHIP 1/10W RC 0603 1/10W 39Kohm J T R639 R668 2243 E-00002109 2253251296 RES,CHIP 1/10W RC 0603 1/10W 5.1Kohm J T R643 R667 2244 N/A 2253451096 RES,CHIP 1/4 RC 1206 1/4 W 51ohm J T R674 1
245 E-R-0405-64222259247008 RES,CHIP NETWORKS 8P4R 1/16W 47 ohm J P=0.8 RP01 RP02 RP03 RP04 RP05 RP06 RP07 RP08 RP09
RP10 RP11 RP12 EP18 RP19 RP20 RP21 RP22 RP2320
246 M-SW-0815-0182 2403702200 SWITCH,PU-TC TSAA-2 HUAJIE S701 S702 S703 S704 S705 S706 S707 7247 B-00003828 2202517300 PCB MULTILAYER 27"LCD TV M/B FR4*4 270*240 U101 1248 N/A 2202518200 PCB MULTILAYER JC27A61 A/B FR4*2 100*65 U601 1249 N/A 2202129800 PC BOARD JC278 KEY/B CEM1 120*20 V1.00 U701 1250 N/A 2202129900 PC BOARD JC278 IR/B CEM1 54*53 V1.00 U702 1251 N/A 2200202200 PC BOARD ASS'Y FSP204-2F01 27" PWRA SPI U801 1252 N/A 2200202210 PC BOARD ASS'Y OPV-0005 27" PWRA LIEN CHANG U801 1253 E-00001795 2212006100 LCD PANEL V270B1-L01 CMO V901 1254 N/A 2391310061 SPEAKER ASS'Y 10W/6ohm W60*L228*H74.5 J.G W901 2255 N/A 2369105101 XTAL,OSC 18.432MHZ/49US 0.1mW/30pF X101 1256 N/A 2369105301 XTAL,OSC 20.000MHZ/49US 0.1mW/16pF X103 1257 E-X-0415-0111 2369102901 XTAL,OSC 14.31818MHZ/49US 30pf/0.1mW X105 1258 E-X-0415-0106 2369103701 XTAL,OSC 8.000MHZ/49US 0.1mW/30pF X106 1259 E-X-0415-0119 2369103601 XTAL,OSC 12.000MHZ/49US 30pF/1mW X107 1
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* Reader’s Response* Dear Readers: Thank you in advance for your feedback on our Service Manual, which allows continuous improvement of our products. We would appreciate your completion of the Assessment Matrix below, for return to ViewSonic Corporation.
Assessment A. What do you think about the content of this Service Manual?
Unit Excellent Good Fair Bad
1. Precautions and Notices
2. Service Tool & Equipment Required
3. Specifications
4. Exploded View and Parts List
5. Block Diagram
6. Schematic Diagrams
7. Working Theorem
8. Wiring Diagram
9. PCB Layout Diagrams
10. Trouble Shooting Flow Chart
11. Adjustment
12. Recommended Spare Parts List
B. Are you satisfied with this Service Manual?
Item Excellent Good Fair Bad
1. Service Manual Content 2. Service Manual Layout 3. The form and listing
C. Do you have any other opinions or suggestions regarding this service manual?
Reader’s basic dada:
Name: Title: Company: Add: Tel: Fax: E-mail: After completing this form, please return it to ViewSonic Quality Assurance in the USA at facsimile 1-909-839-7943. You may also e-mail any suggestions to the Director, Quality Systems & Processes ([email protected])
ViewSonic Corporation Confidential - Do Not Copy N2750w-1 48