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CONTENTS... 2006 DP-6X Chassis Projection Television Information
Materials Prepared by… Alvie Rodgers C.E.T. (Chamblee, GA.)
August 2006 (ver b)
2005 MODEL RELEASE DIGITAL HD READY PTV
Model Chassis Remote P/N
51F59 DP-65
CLU-4361S
57F59 DP-65
65F59 DP-65
51F59A/J DP-65G
57F59A/j DP-65G
65F59A/j DP-65G
HL02291
Service Web Site http://www.hitachiserviceusa.com
HITACHI PROJECTION
TELEVISION
THIS PAGE INTENTIONALLY LEFT BLANK
DP-6X TABLE OF CONTENTS
Table of Contents Page 1 of 2
August 2006 (ver b) Materials prepared by Alvie Rodgers C.E.T.
TOPICS PAGE
Continued on Next Page
SECTION (1) PRODUCT INFORMATION SECTION: • 51F59 Product Specifications ------------------------------------------------------------------------ 01-01 • 51F59 Product Dimensions -------------------------------------------------------------------------- 01-02 • 57F59 Product Specifications ------------------------------------------------------------------------ 01-03 • 57F59 Product Dimensions -------------------------------------------------------------------------- 01-04 • 65F59 Product Specifications ------------------------------------------------------------------------ 01-05 • 65F59 Product Dimensions -------------------------------------------------------------------------- 01-06
SECTION (2) POWER SUPPLY DIAGRAMS:
• Stand By +5V Regulation Circuits Diagram -------------------------------------------------------- 02-01 • Deflection +115V Regulation Circuits Diagram --------------------------------------------------- 02-02 • Protect_OVP Shutdown Block Diagram ----------------------------------------------------------- 02-03 • Protect_OVP (A) -5V Loss Detection Circuit Diagram ------------------------------------------ 02-04 • Protect_OVP (B) Deflection Side Shutdown Circuit Diagram --------------------------------- 02-05 • Protect_OVP (B to C) 115+ Too High or Over Current Circuit Diagram ------------------- 02-06 • Protect_OVP (C) Shutdown Circuit Diagram ----------------------------------------------------- 02-07 • LEDs Used for Troubleshooting Circuit Diagram -------------------------------------------------- 02-08 • Power On/Off Used for Troubleshooting Circuit Diagram --------------------------------------- 02-09
SECTION (3) VIDEO CIRCUIT INFORMATION:
• Video Signal Selection Circuit Diagram ------------------------------------------------------------ 03-01
• ABL Circuit Diagram ----------------------------------------------------------------------------------- 03-05 SECTION (4) AUDIO CIRCUIT INFORMATION:
• Audio Signal Selection Circuit Diagram ------------------------------------------------------------ 04-01 SECTION (5) DEFLECTION CIRCUIT:
• Sweep Loss Detection Circuit Diagram -------------------------------------------------------------- 05-01 SECTION (6) MUTE CIRCUIT INFORMATION:
• Video Mute Circuit Diagram -------------------------------------------------------------------------- 06-01 • High Voltage Circuit Diagram ------------------------------------------------------------------------ 06-02 • Audio Output Mute Circuit Diagram --------------------------------------------------------------- 06-03 • Rainforest IC Mute Circuit Diagram ---------------------------------------------------------------- 06-04 • Monitor Out Mute for Circuit Diagram ------------------------------------------------------------ 06-05
DP-6X TABLE OF CONTENTS
Table of Contents Page 2 of 2
August 2006 (ver b) Materials prepared by Alvie Rodgers C.E.T.
TOPICS PAGE
SECTION (7) DIGITAL CONVERGENCE CIRCUIT INFORMATION:
• Digital Convergence Interconnect Circuit Diagram ----------------------------------------------- 07-01
• CLU-4361S Remote Control -------------------------------------------------------------------------- 07-02
SECTION (8) CHASSIS PICTURES:
• Signal PWB Picture ------------------------------------------------------------------------------------ 08-01
• Deflection PWB Picture ------------------------------------------------------------------------------- 08-02
• Digital PWB Picture ----------------------------------------------------------------------------------- 08-03
• DCU PWB Picture ------------------------------------------------------------------------------------- 08-03
• Control PWB Pictures -------------------------------------------------------------------------------- 08-03
• CRT PWB Pictures ------------------------------------------------------------------------------------ 08-04
SECTION (9) KEY PARTS
• Key Component Parts List --------------------------------------------------------------------------- 09-01
SECTION (10) THINGS YOU SHOULD KNOW:
This section changes often;
• See the index for this section after the Section 10 Divider. ------------------------------------ 10-00
DP-6X CHASSIS TRAINING PACKAGE
PRODUCT INFORMATION
SECTION 01
THIS PAGE INTENTIONALLY LEFT BLANK
Hitachi America, Ltd., Home Electronics Division 900 Hitachi Way, San Diego, California 91914 - www.hitachi.us/tv or 1-800-HITACHI
51F
59
51" Digital Projection Television
Key Features• 1080iDisplay1
• DTVTuner2
• High-BrightnessCRTs• High-Brightness4-Element
LensSystem• MagicFocusAutoDigital
Convergence• 1080iDigitalVideoProcessor -3HDAspectModes -6SDAspectModes -1080i/720p/480p/480i
InputCompatible -SplitScreen/PictureinPicture3
• High-ContrastFine-PitchScreen• 3-ColorTemperatures• EdgeEnhancement(SVM)• BlackEnhancement• Digital3DY/CCombFilter• EnergyStarCompliant
Audio Performance Features• MTSStereo/SAPwithdbx™
• SimulatedSurroundSound• FullRangeSpeakerSystem
Convenience Features• DayandNightMemorybyInput
withTimer• FrontPanelMenuControls• UniversalRemoteControl• 3-LanguageOn-ScreenDisplay• ParentalLocks(V-Chip)• ClosedCaptionDecoder• SleepTimer• DiscreteIRCodes
Specifications• Color:................................Gray/Black
Inputs/Outputs• HDMI™High-Definition MultimediaInterface:4.....................1• WidebandComponent VideoInputs:....................................2• S-VideoInputs(Rear/Front):.........2/1• AVInputs(Rear/Front):.................4/1• AntennaInputs:................................1• CenterChannelInput:...........L/Mono• Fixed/VariableAudioOutput:..........1
Dimensions • Height....................................... 503/8"• Width........................................ 483/4"• Depth......................................2115/16"• Weight...................................151lbs.
Warranty• 1YearPartsandLaborWarranty
In-HomeService• 2YearTubeWarranty
1 Duetovariancesinprogramproductionsandtransmissionsnotallofthe1080signalisdisplayed.
2 NotQAMCompatible,480iOutput3 Requirestheinternaltunerplusanexternal
tunerorothersourcedevice4 HDMIinputiscompatiblewithDVI-HDTV
(HDCP)signalswhencombinedwithanadaptercable.Adaptercableisnotincluded.
Allspecificationsanddimensionsaresubjecttochangewithoutnotice.Refertowww.hitachi.us/tvforupdatedcustominstallationspecifications.©2006HitachiLtd.Alltrademarksarethepropertyoftheirrespectiveowners.
DIGITAL
51F5951" H
DTV
A
A
B
B
CD
EF
GH
I
IJ48-13/16
48-13/16”
51-5/16
51-5/16”
48-13/1622-13/16
23-15/1637-5/8
2544-1/2
21-11/16
21-11/16”
1-5/8
1239
Inches
mm
13031239
579608
955.5635
1129550
40
K20-1/8
510
L21-15/16
557
Product D
imensions
A
B
C
DE
F
G
H
JIKL
Height
Width
Depth
Quick specs
NO
TE: All measurem
ents are shown to the nearest 1/16th inch. This illustration is not necessarily draw
n to scale and is intended for estimating space required for custom
installations. Final measurem
ents should be taken from the actual product
before attempting installation. All dim
ensions are approximate m
easurements and subject to change w
ithout notice. Allow adequate space behind the unit for proper ventilation and cooling. H
itachi is not responsible for any typographical errors.
Hitachi America, Ltd., Home Electronics Division 900 Hitachi Way, San Diego, California 91914 - www.hitachi.us/tv or 1-800-HITACHI
57F
59
57" Digital Projection Television
Key Features• 1080iDisplay1
• DTVTuner2
• High-BrightnessCRTs• High-Brightness4-Element
LensSystem• MagicFocusAutoDigital
Convergence• 1080iDigitalVideoProcessor -3HDAspectModes -6SDAspectModes -1080i/720p/480p/480i
InputCompatible -SplitScreen/PictureinPicture3
• High-ContrastFine-PitchScreen• 3-ColorTemperatures• EdgeEnhancement(SVM)• BlackEnhancement• Digital3DY/CCombFilter• EnergyStarCompliant
Audio Performance Features• MTSStereo/SAPwithdbx™
• SimulatedSurroundSound• FullRangeSpeakerSystem
Convenience Features• DayandNightMemorybyInput
withTimer• FrontPanelMenuControls• UniversalRemoteControl• 3-LanguageOn-ScreenDisplay• ParentalLocks(V-Chip)• ClosedCaptionDecoder• SleepTimer• DiscreteIRCodes• 2PieceCabinet
Specifications• Color:................................Gray/Black
Inputs/Outputs• HDMI™High-Definition MultimediaInterface:4.....................1• WidebandComponent VideoInputs:....................................2• S-VideoInputs(Rear/Front):.........2/1• AVInputs(Rear/Front):.................4/1• AntennaInputs:................................1• CenterChannelInput:...........L/Mono• Fixed/VariableAudioOutput:..........1
Dimensions • Height......................................549/16"• Width.............................................54"• Depth........................................ 235/8"• Weight...................................162lbs.
Warranty• 1YearPartsandLaborWarranty
In-HomeService• 2YearTubeWarranty
1 Duetovariancesinprogramproductionsandtransmissionsnotallofthe1080signalisdisplayed.
2 NotQAMCompatible,480iOutput3 Requirestheinternaltunerplusanexternal
tunerorothersourcedevice4 HDMIinputiscompatiblewithDVI-HDTV
(HDCP)signalswhencombinedwithanadaptercable.Adaptercableisnotincluded.
Allspecificationsanddimensionsaresubjecttochangewithoutnotice.Refertowww.hitachi.us/tvforupdatedcustominstallationspecifications.©2006HitachiLtd.Alltrademarksarethepropertyoftheirrespectiveowners.
DIGITAL
57F59 57" HD
TV
AB
CD
EF
GH
IJ
54-1/1654-1/4
54-1/1622-3/4
23-15/1639-1/16
2849-11/16
23-5/161-5/8
1372
Inches
mm
13781372
578607
992710
1262592.3
40
K21-3/4
552.2
L23-5/8
599.2
Product D
imensions
A
B
C
DE
F
G
H
JIKL
A B
54-1/16”
54-1/4”
23-5/8”I
Height
Width
Depth
Quick specs
NO
TE: All measurem
ents are shown to the nearest 1/16th inch. This illustration is not necessarily draw
n to scale and is intended for estimating space required for custom
installations. Final measurem
ents should be taken from the actual product
before attempting installation. All dim
ensions are approximate m
easurements and subject to change w
ithout notice. Allow adequate space behind the unit for proper ventilation and cooling. H
itachi is not responsible for any typographical errors.
Hitachi America, Ltd., Home Electronics Division 900 Hitachi Way, San Diego, California 91914 - www.hitachi.us/tv or 1-800-HITACHI
65F
59
65" Digital Projection Television
Key Features• 1080iDisplay1
• DTVTuner2
• High-BrightnessCRTs• High-Brightness4-Element
LensSystem• MagicFocusAutoDigital
Convergence• 1080iDigitalVideoProcessor -3HDAspectModes -6SDAspectModes -1080i/720p/480p/480i
InputCompatible -SplitScreen/PictureinPicture3
• High-ContrastFine-PitchScreen• 3-ColorTemperatures• EdgeEnhancement(SVM)• BlackEnhancement• Digital3DY/CCombFilter• EnergyStarCompliant
Audio Performance Features• MTSStereo/SAPwithdbx™
• SimulatedSurroundSound• FullRangeSpeakerSystem
Convenience Features• DayandNightMemorybyInput
withTimer• FrontPanelMenuControls• UniversalRemoteControl• 3-LanguageOn-ScreenDisplay• ParentalLocks(V-Chip)• ClosedCaptionDecoder• SleepTimer• DiscreteIRCodes• 2PieceCabinet
Specifications• Color:................................Gray/Black
Inputs/Outputs• HDMI™High-Definition MultimediaInterface:4.....................1• WidebandComponent VideoInputs:....................................2• S-VideoInputs(Rear/Front):.........2/1• AVInputs(Rear/Front):.................4/1• AntennaInputs:................................1• CenterChannelInput:...........L/Mono• Fixed/VariableAudioOutput:..........1
Dimensions • Height.....................................5915/16"• Width.............................................61"• Depth........................................ 253/8"• Weight...................................259lbs.
Warranty• 1YearPartsandLaborWarranty
In-HomeService• 2YearTubeWarranty
1 Duetovariancesinprogramproductionsandtransmissionsnotallofthe1080signalisdisplayed.
2 NotQAMCompatible,480iOutput3 Requirestheinternaltunerplusanexternal
tunerorothersourcedevice4 HDMIinputiscompatiblewithDVI-HDTV
(HDCP)signalswhencombinedwithanadaptercable.Adaptercableisnotincluded.
Allspecificationsanddimensionsaresubjecttochangewithoutnotice.Refertowww.hitachi.us/tvforupdatedcustominstallationspecifications.©2006HitachiLtd.Alltrademarksarethepropertyoftheirrespectiveowners.
DIGITAL
65F5965" H
DTV
AB
B
C
C
DE
FG
HI
J61
61”
59-7/8
59-7/8”
6124-5/8
25-3/442-13/16
31-13/1656-11/16
25-3/81-5/8
1549
Inches
mm
15211549
624653
1087808
1439644
40
K23-13/16
604
L
L
33-9/16
33-9/16”851
Product D
imensions
A
B
C
DE
F
G
H
JIKL
Height
Width
Depth
Quick specs
NO
TE: All measurem
ents are shown to the nearest 1/16th inch. This illustration is not necessarily draw
n to scale and is intended for estimating space required for custom
installations. Final measurem
ents should be taken from the actual product
before attempting installation. All dim
ensions are approximate m
easurements and subject to change w
ithout notice. Allow adequate space behind the unit for proper ventilation and cooling. H
itachi is not responsible for any typographical errors.
DP-6X CHASSIS TRAINING PACKAGE
POWER SUPPLY INFORMATION
SECTION 02
THIS PAGE INTENTIONALLY LEFT BLANK
I904
DP-6X CHASSIS POWER SUPPLY SBY 5.0V REGULATION CIRCUIT DIAGRAM
PAGE 02-01
Run
1
2
Start Up
4
R958
FB
F/B
Cold Ground frompin 8 of T901
F9021 Amp
R957
Hot Ground from pin 4 ofBridge Rectifier D901
AC
5
I901
Start Up
3
8
D
C908+
-
3Gnd
L930SBY 5.0V
T901
5.7V
C940
RegulatorPhotocoupler
D949
C911
R908
OCP
4
D962MTZJ4.3B
6
8
D907
Vcc
5
3
Secondary
7
D
R909
1
C909
14
PAF901
8 Amp
2
3D901 2
1
C905
R906 D206
T901
1
2
2
Primary
C912
5.28V
4.30V
1.08V
1.08V170V
0V
170V
16.3V
0V
PAGE 02-02
9.62V
DP-6X CHASSIS POWER SUPPLY SW +115V REGULATIONHigh Voltage Power Supply
R915
RunI906
AC
RegulatorPhotocoupler
1
2
Start Up
Osc B+17.91V 4
7.5P/P
R914R913
D910C914
D911
6
Supplied from Relay S903
Floating Ground frompin 8 of TP01
3
SW +10.5V
R964R920
E9460.5K
I941
3
1 2
L948 0.81ASW +115V11
T9020.39R951
R959
R956
12
C961
C966
Q941
C967R955
R952D946
D950
D945E9473K
DeflectionB+ 115V
ProtectOVP
D948D951
D952
8T902
9
C925
FB
VIn
1 2
150V
F9035A
12
56
T902R916
D S
Cold Ground frompin 16 of TP01
C906
AC Supplied fromRelay S903
Raw B+ from D902 Pin 1
4
3
B+ 115V
8.58V
8.58V
11.38V
7.13V
0.74V
176V
1 of 3
2 of 3
3 of 3
OCP/FB
Gnd
0.05
SW +35V
R986
0.01A
R960C968
R963
D914R921
7OCP/BDD913
D912
0.55V
AC Hot Ground frompin 8 of TP01
0.0V
I902Driver/Output
IC
PAGE 02-03
DP-6X PROTECT-OVP SHUTDOWN BLO CK DIAGRAM
Power_1D944PDS2
6
Q980 / Q981
D951D946D959
AC Too High Det.
From I905 / Q901
Power-Def 1/1
DX07
RE35 CurrentSensor + 220V
Over Current Det. 220V Overcurrent Detect ion
QE08
7 3
PCT
Green CRTRed CRT
Deflection 1/1
7 PDT2
< VM Port > < CRT Prot >
< Protect-OVP >
To Q944Turns on Relay S903
A B
D952Q941
115V Too High Det.
115V OverCurrent Det.
D948
Power_1
+115V
ExcessiveHigh Voltage Det.
DH15From DH13, CH17off Pin 7 of Flyback
Vert. 26V Overcurrent Det.
D608R632 From Q604and Current Sensor
R609
DC27
- 5V Loss Detection+ 5V
RC47
RC46- 5V
< Protect-OVP >
Signal 6/7 (Sweep Detection)
Signal 5/7 (RGB Processor)
RY73RE34ERG1
+115V
Turns off Relay S903
A
B
C
1
2
4
7
2
1
Source
Load0.39ohm
If the 220V line experiencesa high current demand, ahigh is impressed on the
anode of DX07
If the -5V line experiencesa short or disappears, ahigh is impressed on the
anode of DC27
If the Vert 26V line experiences a high currentdemand, a high is impressed on the anode of D608If the Heater pin line goes too high, a high is
impressed on the cathode of DH15, turning it on.
If the AC line goes too high, a high is impressed onthe anode of D959
If the 115V line experiences a high current demand, ahigh is impressed on the anode of D946 or
If the 115V line goes too high, a high is impressed onthe cathode of D948, turning it on. Any high impressed on the base of Q980 will cause
the Relay to turn off. Q981 keep Q980 turned on aslong as the Power_1 high remains.
PAGE 02-04
CRT PROT
DP-6X CRT and -5V LOSS PROTECT-OVP (A) SHUTDOWN DIAGRAM
Signal 6/7
RE31
RE352.2 Ohm
1
PDC1
Def+220V
RE29
QE08
To CRT 220VTo VM Circuit
7
ERG1
3
PCT
GREENCRT PWB
RED CRT PWB
RE34 1
VM PORTCE10
A B DX07
RGB ProcessorSignal 6/7
CRT +220V ExcessiveCurrent Detection
VM PORT
1
< Prot-OVP >RY73
Normal
Active
8
PDT2
ASEE DEFLECTION SIDE (B)
PROTECT-OVPSHUTDOWN DIAGRAM
2
< Prot-OVP >
RE30
-5V Loss Detection
DC27
-5V Loss Det.
+ 5V
- 5V
RC47
RC46
< Prot-OVP >
1
PAGE 02-05
DP-6X DEFLECTION SIDE (B) PROTECT-OVP SHUTDOWN D IAGRAM
Flyback
5OP
29.01V
IH01OVP
TH01ABL VoltageToo High Det.
RH32
Hi VoltH. Drive
77LH06
Excessive HiVoltage Det.
RH23
CH17
8ABL
Stops H. Drive
I601
10
Vertical Output Circuit
R630 R631
C610
DH15
R629 0.68 Ohm
Q604
Def +28V
D608
Excessive VerticalCurrent Det.
R632
RH32 allows ABL fluctuations tomanipulate the Trigger Po int of Shut
Down as screen brightness varies. ABLis inverse proportionate to brightness.
This prevents false triggering.
Any fluctuations in High Voltage willalso be reflected by the 50P output P/P.By monitoring the 50P (50 Pulse) risesin High Voltage will be sensed. If HighVoltage climbs too high, DH15 will fire
and trigger a shut down event.
If the Vertical Output IC has a problem,R629 will sense the current rise. The
voltage drop will be reflected at the baseof Q604 turning it on and producing a
Shut Down high.
High VoltageSensing Circuit
DH13
DH141
RH26
RH24
C604
L603
Vs
RH21
LH01
RH25
Normal
Active
8
PDT2
FROM CRT and -5V LOSSPROTECT-OVP (A)
SHUTDOWN DIAGRAM< Prot-OVP >
< Prot-OVP >B
SEE 115V TOO HIGH AND OVERCURRENT DETECTION (B~C)
PROTECT-OVP DIAGRAM
2
1
1
4
Deflection Schematic
A
PAGE 02-06
DP-6X 115V TOO HIGH AND OVER CURRENT DETECTION (B~C) D IAGRAM
17
TP01
Deflection B+ (115V)Excessive Voltage Det.
0.39 Ohm
Deflection B+ (115V)Excessive Current Det.
RP47
RP54
RP55
RP53
16
CP45
CP51
QP41
CP59
RP48
EP46500
DP55DP59
DP58
D926
CP63 DP56
DP463K
EP45 Deflection B+ 115V
RP49Def +115V
SEE PROTECT-OVP (C)SHUTDOWN CIRCUIT
2
Power-Def Schematic
6
BSEE DEFLECTION SIDE (B)SHUTDOWN DIAGRAM
C
< Prot-OVP >
4
PA
GE
02-07
S903
C980
R947AC
SBY +5V
R942
R981
R980
Q980
Q981
C981
onoff
RelayDriver
D942
Q944
R945
6
R982
PDS2
DP-6X PROTECT-OVP (C) SHUTDOWN CIRCUIT
7
D947
ForPowerSupplyD902
D9021
2
T902
R924
R925
D9159V
(8.9V ~ 9.3V)
R926
Q901
AC 175On
2
1 3
4
I905SBY 5V
D959
AC Voltage Too HighDetection
Run B+ 16V
R9231
Raw B+
HotGround
5
4
R927
C916
6
AC AC
From Sub Micro I002Pin 62, Q012, Q013
Power_1
C942
c
SEE115V TOO HIGH
AND OVERCURRENT
DETECTION (B~C)DIAGRAM
Power-Def SchematicPower On/Off
DP-6X CHASSISL.E.D. (Visual Troubleshooting) for the Deflection Power Supply
+115 Deflection B+ L.E.D. for visual troubleshooting observation.
GREEN L.E.D.
C966
0.85ASW + 115V
+115VR951
0.39 Ohm
D950
L948R959
R956
+115V OverCurrent
Q941
C967
T902
PAGE 02-08
R952
E9473 Amp
PROT_OVP
See the Deflection Power Supply ShutDown Circuit Diagram for details.
D948 +115V OverVoltage
SW +115V Active (LED)
C96112
11+115V D945
D946
C966R960
D951
D952
GND 1
Active Hi
S903
R947
SBY +5V
R942
onoff
RelayDriver
D942
ForPower Supply
Q944
R945
Power-Def 1/1
DP-6X POWER ON and OFF CIRCUIT DIAGRAM
AC
PAGE 02-09
D947
C944
I9071SW 5.6V
Regulator
L931
C931
SW+ 5.6V
S901RUSH
R940
on off
RelayDriver
D940
ForPower Supply
Q942
R943
D944
C942
Conv + 28V
3
14
2
3D902
AC1/2
AC
PA 2 1
F9021 Amp
F9018 Amp
R9072.2
ohm
AC1/2
Raw B+ forT902 / I902
I002Sub
MicroprocessorQ012Q013
6
10
Signal 1/7 Main Micon
POWER 1Power On/Off 1
POWERLED
on off
PFT1
PDS2
DM10
RH30
9
Power LEDNot Used
PFS
SW+ 9VIA04
3SW 9VRegulator
5SW+ 10.5V
Power LED
From D954 off MainSwitching Transformer
Pin 13 Signal 4/7Audio
Ft Control
61
67
S901 Turns On after theSW 5.6V becomes
active. This preventssurge current duringcapacitor charging.
AC Routewhen first applied
THIS PAGE INTENTIONALLY LEFT BLANK
DP-6X CHASSIS TRAINING PACKAGE
VIDEO INFORMATION
SECTION 03
THIS PAGE INTENTIONALLY LEFT BLANK
CY
PB
PR
PAGE 03-01
Component 3 Y
V4
S2 1412
V2
S1
10
68
V5
S5
162018
Front Control PWB
V1 4
U303 Main Tuner 22
Aux 5 S-Y V3YAux 5 S-C V3C
Aux 5 Video V3VC Pb
Y
SUB OUT
MAIN OUT
I501Video Select
279
PFT
4
V3
Y3C3
V2Y2C2
V1
Y1C1
CVBS2
DP-6X CHASSIS VIDEO SIGNAL SELECTION PATH CIRCUIT DIAGRAM
1711 S-1S-5 Det.
Aux 2 VideoAux 2 S-YAux 2 S-C
Aux 1 Video
Aux 1 S-YAux 1 S-C
C Pr
61
59
57
V3
67
65
63
24
Component 4 Y
Component 4 Pb/Cb
Component 4 Pr/Cr
Composite 3
Component 3 Pb/Cb
Component 3 Pr/Cr
11 S-3S-2 Det.
5 S-2S-1 Det.
33
32
34
For Micro. Sync detection
MON OUT
See Main Sync Signal Path
56
60
64
Signal 2/7 Tuners
Signal 3/7 AV Selector
Sheet 13 1 2
CY1
PB1
PR1
V7
26Composite 4
V8
CY2
PB2
PR2
PDTV1
Signal 2/7 Tuners
See Sub Sync Signal Path
Y5 DM InDTV-CY
DTV-C
NTSC for Monito OutC5 DM In
19
15
16
17
18
HDV-Y
HDV-PR
HDV-PB
MTV-CVBS
SDL2
SDA2
CLK
DATA
73
69
71
G/CY1
R/PR1
B/BR1
U304DigitalTuner
36 G/Y/CVBS
For Micro. Main CC detection
23
PST
11
13
C Pb
C Pr
Y
29
30
28
74
72
68
For Micro. SubCC detection
97
45
44
100
NOT AVAILABLE
61
30
60
True 1080IRainforest IC(Flex Bypass)
YTrue Y
True Pb
True Pr
Main CY/Y/CVBS
Main_Pb
Main_Pr
Sub_Pr
Sub_Pb
Sub CY/Y/CVBS
1
3
5
66
QX09
67
QX10
68
QX11
FLEX CONVERTER
Signal 5/7 RGB Processor
IX01Rainforest
RH43 180K
ABL
CX17
DP-6X Chassis A.B.L. Circuit Diagram
78
8
To Focus
IX01Rainforest
ICABL
ToAnodes
To QH01 Collectorof High Voltage
Output Transistor
Deflection PWB
Clamp
RH27 & RH28ABL Pull-Up
Resistors
As Brightness goes Up, ABL Voltagegoes Down. (Inverse Proportional)
[ Current Path ]
QX12
CX18
TH01
Protect_OVP
RX38
CX21
DX02
CX20RX37
RX36RX35
RX34RX33
DX01
DH16RD30EB4
CH18
RH27 30K
RH31
RH32180K
CH21
DH15
SW +10.5V
RH25 13K
ABL
9
10
7
1 Gnd
DH13
CH17
IH01
7DH14
RH09 CH10
RH23
LH06
StopsH. Drive
OVP
HZ22-2L
RH26
PDS2
6.8K
FBT
RH42 47K
RH41
I001Sub
MicroSDA1 28SCL1 30
B_Side_Panel
75SW +9.3V
QH05
ABL_SW
PAGE 03-02
ABL
RH21
LH01CH14RH28 39K
RH2443K
58 ABL Switch
50PB+
C
RH40
ABL switches slightly reduce theoverall operational point of ABL dueto the loss of overall brightness levels.
RH332.2K
Signal 5/7 PWB
SW +115V
RH30ABL Switch
QH03
BLACK_PANEL
RH35
2
3
59 Black Side PanelR090
PDT2
2
RC95
R091
1080I
Signal 1/7 PWB
DP-6X CHASSIS TRAINING PACKAGE
AUDIO INFORMATION
SECTION 04
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PAGE 04-01
AVX 3 Audio L
V4
88V2
87
86
V581
82
Front Control PWB
V185
U30383
ANALOG TUNER U303
Aux 5 Audio RAux 5 Audio L
L1 OutMAIN OUT
I501Audio Select
4
5
PFT2
2
L4
R4
L5
R5
L7
R7
L6
DP-6X CHASSIS AUDIO SIGNAL SELECTION PATH CIRCUIT DIAGRAM
91
92
V389
90
AVX 4 Audio L
AVX 4 Audio R
AVX 3 Audio R
96
97
SDL2
SDA2
45
44
Signal 2 Tuners Signal 3 AV Selector
L3
R3
L2
R2
CLK
DATA
Signal 2 Tuners
80
79
L8
R8
DigitalTunerU304
841
MTV-L
MTV-R R6
AVX 2 Audio L
AVX 2 Audio R
AVX 1 Audio L
AVX 1 Audio R
R1 OutSelected Audio Out
L1
R1
Hi-Fi93
94
1
20
12
IA02Audio
Control
QA07
QA06
QA05
QA04
Signal 4/7 Audio
PL
1L Out 1
R Out 1
MON OUTMonitor Audio Out L
1
100Monitor Audio Out RMONITOR
OUT CA42
CA12
CA15
CA26
CA25
C554
C553
C512
C513
C515
C514
C526
C527
C551
C552
C548
C549
C545
C546C540
C541C576
C575
C574
C573
DTV L
DTV R13
12
A Out R
A Out LI301
1
7
3
5
2
19CA12
CA15
IA03AudioOut
2
4CA28
CA27L In
R In
7
PR
1CA41
CA29
CA30
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DP-6X CHASSIS TRAINING PACKAGE
DEFLECTION INFORMATION
SECTION 05
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PAGE 05-01
QC12
PDT2
RC27
RC30CC10
DP-6X SWEEP LOSS DETECTION CIRCUIT
RC22
CC06
CC08
RC24V. Blk.
14V P/P
H. Blk.CC09
RC28RC29 RC26
RC17
RC138V P/P
RC18
Vertical BlankingFrom Pin 11 I601
Horizontal BlankingFrom Q706 Emitter
QC11
RC23
RC25
DC21
DC20
RC34
DC22
DC23
QC08
QC07
QC09QC10
CC13
DC19
RC19
DC26 RC16
Cut Off
QC06RC21
RC22
From Pin 60 I002 Sub Microprocessor (Signal 1/7)
7
4
FromDeflection 1/1
RC35
QC13
RC36
CC12
RC33
CC11DC24
RC32
RC31ProtectSwitch
H Det
V Det
Protect HV
See Video MuteGeneration
Circuit
A
Signal 6/7Sweep Detection
10 SW +10.5V
Def 6.3V
RC14
DC18
RC37 DC25
Cut Off from Microduring "Setup" to
prevent falsetriggering of V
Sweep Loss duringRGB Cut Offadjustment.
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DP-6X CHASSIS TRAINING PACKAGE
MUTE CIRCUIT INFORMATION
SECTION 06
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Signal 4/7Mutes Audio
PAGE 06-01
DP-6X CHASSIS VIDEO MUTE GENERATION CIRCUIT DIAGRAM
Signal 6/7Sweep Detection
RC10
SW +9.3V
AC SIGNALFrom
Power-Def1/1From Pin 3 I903
RC14
RC11
QC05
CC04
RC09
DC16
CC03
QC04AC DetNormal Off
Prot HV
DC15
AC DetProt HVV Mute
QC23
RC07CC02
DC14RC06SW +9.3V
RC05
QC02Signal 5/7
RGBProcessor 3
PDS2V Mute0
Shuts off IH01High Voltage
Driver IC
Prot_HVFrom Sweep LossDetection CircuitQC07 & QC12
AC Det = Loss of ACProt HV = Loss of H or V SweepV Mute = Channel Change,Power Off/On, AutoProgramming, etc..
RC56
QC17RC57
CC29
MuteDCU 2/2
Dig Conv.IT01 pin 45
CONV. AMPSignal 7/7
Mutes Convergencewhen +28V line drops.
Active Low
Mute
A
C72I002
V_MUTE 2
Signal 1/7Main Micon
DC17
RC58
DC29
Frompin 1 IK03
RC08
Def 6.3V 1
PDCU
7
PDS2QC24
V MuteQ024
Q025
RC020 ohm
11
PCTTo
MuteCRTs
B
D
Active Hi
Active Hi
V_MUTE 1RC03
F
V_MUTE 1
QC01
To Q504, Q505through D512
Mutes Monitor OutAudio
E
Signal 3/7AV Selector
To IX01Pin 39
Mutes Video
DP-6X HI VOLTAGE MUTE CIRCUIT
PAGE 06-02
IH01
High VoltageDriver IC
RH06
StopsDrive
RH16
RH07DH12
DH02
StopsOsc
14
3
H. Blk
DH041 H Drive
RH06
QH04RH37
DH03
RH36
Prot HV
3
PDS2
From MuteGeneration
Circuit Diagram
D
Active
Lo
From Q706
QH02 RH13 QH01
Horz Output
10
9
TH01Flyback
+ 115V
Deflection 1/1
PAGE 06-03
DP-6X CHASSIS AUDIO OUTPUT SELECTION MUTE CIRCUIT DIAGRAM
4
2
IA03Audio
Out
Signal 4/7 Audio
PR
1
1
CA42
CA41CA30
CA29 7
12
CA47
CA48
6RA45 Ripple
Filter
RA47
QA03
QA08
Right Main Audio
Left Main Audio
RA49QA09
DA05
DA11
DA12RA57
QA14
RA59
SW +9VQA11
RA60
RA58AU+29V
QA12
11 MUTERA46
RA50
QA10
CA50
RA49
CA49
DA13
DA14
V_MUTE 2
72
I002Micro
73
74
19
2
Signal 6/7Sweep Detection
C
V_MUTE
AUDIOMUTE
SP_MUTESP_OFF
SP_R
SP_L
L
R
PL
3IA04
5 SW +10.5V
CA28
CA27
RA40
RA39
IA02Audio
Control
Q024 Q025
Q018 Q019
2RA03
4RA01
1
Signal 1/7Main Micon
20
1
PAGE 06-04
DP-6X CHASSIS RAINFOREST IC MUTE CIRCUIT DIAGRAM
V_MUTE 1
IX01RGB
Processor(Rainforest IC)
39 EFBP In
Signal 5/7RGB Processor
DX03
RX63
H Blk
Deflection 1/1
4
PDT2
From Q706Emitter
Signal 6/7Sweep Detection
SW+ 9.3V
RX12
FC H Blk
FC V Blk
RX08
RX09
QX06
QX05
Signal 3/7A/V Selector
9
PST
FlexConverter
10
RX64
12
13
14
R Out
G Out
B Out
PAGE 06-05
DP-6X CHASSIS MONITOR AUDIO OUTPUT MUTE CIRCUIT DIAGRAM
C574
C573
R5E3Q504
Right Audio
Left Audio
R5E2Q505D512
V_MUTE 1
100
1
Signal 6/7Sweep Detection
F
R3 Out
L3 Out
C576
C575
R5C7
R5C6
I501Video /Audio
Selector
D510
R5C9 R5C8
Right Audio
Left Audio
MONITOROUT
R5C4R5C5
72
I002Micro
V_MUTEQ024 Q025
Signal 1/7Main Micon
Signal 3/7AV Selector
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DP-6X CHASSIS TRAINING PACKAGE
DIGITAL CONVERGENCE INFORMATION
SECTION 07
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PAGE 07-01
Flex
DC_R
RK40
PFS
DP-6X CHASSIS "DIGITAL CONVERGENCE" INTERCONNECTION CIRCUIT DIAGRAM
PSET
RV
RH
GV
BV
BH
Mute
17126
+ -
7 8
11
+ -
20
23
+ -
8
11
+ -
19 20
23
+ -
18
17
15
+ -
IK02GV
BV
BH
IK01RV
RH
GH19
PCR1
3
4
PCG
4
3
1
PCB1
3
4
6
15
6
6
CYV+
CYV-
CYH+
CYH-
CYV+
CYV-
CYH-
CYH+
CYV+
CYV-
CYH+
CYH-
IK03 11
2
To Red C
onvergence YokesTo G
reen Convergence Y
okesTo B
lue Convergence Y
okes
IX01
PCT9
7
5
14
13
12
DC_B
DC_G
DC_R
To CR
Ts
B
G
R
Ft. Control PWB
AV SelectorSignal 3/7
HMO1IR Receiver
IR Out
Mute"Lo"
IR In
7
1
SM09
GH
+5V
-5V
1
5
Magic Focus
8
66
67
68
26
25
24
Rainforest
Dig OSD B
Dig OSD G
Dig OSD R
Y1 In
Pb1 In
Pr1 In
B
G
R
BUSY
Magic Sw Out
IR
Microprocessor
RK38
DC29
55
DigiconBusy In
6
Digicon Adj
+5VGnd
S0S1S2S3S4S5S6S7
S0S1S2S3S4S5S6S7
Sensor PWB
DC_IR 2
From QC16
From IC01
RK37
3Mute
12
6
3Mute
2 YS3
DC_YS
DC_Busy
DC Adj 2
4
2
6
8
12
10
PDCU
DM07
53
1I007
DCU IR Sel576
3
4
I002
Conv-24
5
5
25
61
2180797877
7576
60
7
1
1
7
7
1
45
123456
87
9
LEDS0 ~S78 Total
Sensors
10
MAG SW In (Lo)
DC _YS
CY
PB
PR
135
PSTIncludes OSD
56Q028
IR Out
Main MiconSignal 1/7
Main MiconSignal 1/7
10
22
14
10
DK27
13
13
Conv+28V
22
14
18
7
14
Conv AmpSignal 7/7
RGB PROCESSORSignal 5/7
DCU 2/2
IT06
IT07
IT05
IT01
Sweep DetSignal 6/7
IS07
18
5
47
54 90 125
3 12
IS07
Sw AdjSC01Service
Only
59SW_ADJ
IS06DC_G
DC_B
53
50
49
48
66Magic SW 2
51
54
-5V
+5V
DCU 1/2
DT01
RES7
Conv+28
V Blk 2 35IS06
DC_Size 65
H Blk 227
33
QX28
QX32
QX36
QX11
QX10
QX09
QX23
QX22QX21
QX16
20
19
18QX17
QX18
QX19OSD B
OSDOSD G
OSD R
FromMicro
34
33
32
OSD B
OSD G
OSD R
To Rainforest
Q028
DCU Size52
QM01
QM04Sby +5V
2
3
15
21
17
29
25
19
27
23
31
44
40
2826242220
1618
30
PDCU
1
9
9
IS043.3V Reg 3
DP-6X CLU-4361S REMOTE SHOWING DCAM FUNCTIONS
Be sure to return the Remote Control toNormal Mode after DCAM.
CLU-4361S p/n HL02291When Convergence is adjusted by this Remote, this Remote must be changed to DCAM mode.Remote begins in TV mode.While holding the "TV" key down, press and release "MENU" then press and release "INFO" thenrelease the "TV" key.
CLU-4361SReturning the Remote to Normal ModeRemote begins in DCAM mode.While holding the "TV" key, press the "0" then the "1" keys.
PAGE 07-02
DP-6X CHASSIS TRAINING PACKAGE
CHASSIS PICTURES
SECTION 06
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DP-6X PWB PICTURES
PAGE 08-1
SIGNAL PWB
DP-6X PWB PICTURES
PAGE 08-2
DEFLECTION PWB
DP-6X PWB PICTURES
PAGE 08-3
DIGITAL PWB
DCU PWB
CONTROL PWB
DP-6X PWB PICTURES
PAGE 08-4
CRT PWB
DP-6X CHASSIS TRAINING PACKAGE
KEY PARTS
SECTION 08
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DP-65 KEY PARTS IDENTIFIED
P/N DESCRIPTION P/N DESCRIPTIONUE25921 DP65 CHASSIS ASSY HL02291 CLU-4361S REMOTE CONTROLUE25941 DP6X SIGNAL BLOCK ASSY KS21431 51 DP6X 2ND MIRRORUE25951 DP65 POWER DEFLECTION BLOCK ASSY QD53401 51F59 SPEAKER GRILLEJT25591 DP6X CPT/CONT PWB ASSY UX26071 DP65-51 SVC PRT ASSY (R)JT25601 DP6X SENSOR PWB ASSY UX26072 DP65 51 PRT ASSY (G)JT25581 POWER DEFLECTION PWB UX26073 DP65 51 PRT ASSY (B)JT25561 DIGITAL PWB ASSEMBLY UX26081 DP65 SCREEN ASSY 51JT25551 SIGNAL PWB ASSEMBLY UX26091 51F59 SVC FRAME ASSY
P/N DESCRIPTION P/N DESCRIPTIONUE25921 DP65 CHASSIS ASSY HL02291 CLU-4361S REMOTE CONTROLUE25941 DP6X SIGNAL BLOCK ASSY KS09403 57 DP6X MIRRORUE25951 DP65 POWER DEFLECTION BLOCK ASSY PH33954 57F59 SPEAKER GRILLEJT25591 DP6X CPT/CONT PWB ASSY UX26074 DP65-57 SVC PRT ASSY (R)JT25601 DP6X SENSOR PWB ASSY UX26075 DP65 57 PRT ASSY (G)JT25581 POWER DEFLECTION PWB UX26076 DP65 57 PRT ASSY (B)JT25561 DIGITAL PWB ASSEMBLY UX26082 DP65 SCREEN ASSYJT25551 SIGNAL PWB ASSEMBLY UX26092 SCREEN FRAME ASSY
P/N DESCRIPTION P/N DESCRIPTIONUE25921 DP65 CHASSIS ASSY HL02291 CLU-4361S REMOTE CONTROLUE25941 DP6X SIGNAL BLOCK ASSY KS07997 65 DP6X MIRRORUE25951 DP65 POWER DEFLECTION BLOCK ASSY PH34152 57F59 SPEAKER GRILLEJT25591 DP6X CPT/CONT PWB ASSY UX26071 DP65 65 SVC PRT ASSY (R)JT25601 DP6X SENSOR PWB ASSY UX26072 DP65 65 PRT ASSY (G)JT25581 POWER DEFLECTION PWB UX26073 DP65 65 PRT ASSY (B)JT25561 DIGITAL PWB ASSEMBLY UX26083 DP65 SCREEN ASSYJT25551 SIGNAL PWB ASSEMBLY UX26093 SCREEN FRAME ASSY
PAGE 09-01
65F59 PWB PART NUMBERS 65F59 OTHER ADDITIONAL KEY PARTS
51F59 PWB PART NUMBERS 51F59 OTHER ADDITIONAL KEY PARTS
57F59 PWB PART NUMBERS 57F59 OTHER ADDITIONAL KEY PARTS
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DP-6X CHASSIS TRAINING PACKAGE
THINGS YOU
SHOULD KNOW
SECTION 10
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DP-6X Things You Should Know Index
Table of Contents Page 1 of 2
Materials prepared by Alvie Rodgers C.E.T.
TOPICS PAGE
August 2006 (ver 01)
SECTION (10) THINGS YOU SHOULD KNOW: The Number on the Left of the Topic is the same number as shown on the Things You Should Know page on the Web Site.
• (01) ATSC Reception problems ------------------------------------------------------------------ 10-01
• (02) Lead Free Solder beginning in 2004 ------------------------------------------------------ 10-02
• (03) Fan Part # GS00821: In Digital Module ---------------------------------------------------- 10-02
• (04) CRT- I need to Change All Three CRTs, what to do? ------------------------------- 10-03
• (05) How to do a Software Upgrade on the ATSC Digital Module ---------------------- 10-04
• (06) How to Troubleshoot Digital Convergence Problems ------------------------------- 10-08
• (07) Serial Number is shown on a Label on the Front Right Hand Side --------------- 10-10
• (08) HDMI Shows Error Message on HD Channels from Cable Box ------------------- 10-10
• (09) Using Cut Off Adjustment to Check for Defective CRT --------------------------- 10-11
• (10) Picture Dark or Abnormal, Changing Color Temperature -------------------------- 10-11
• (11) POD (CableCard) Problems ----------------------------------------------------------------- 10-11
• (12) Lip Sync Issues --------------------------------------------------------------------------------- 10-12
• (13) HD Generator Suggestions ------------------------------------------------------------------ 10-13
• (14) Some VGA to Component Adaptors cause Picture Problems -------------------- 10-13
• (15) POD (CableCARD) no longer works after Initialization ------------------------------- 10-13
• (16) POD (CableCARD) Digital Tuner Problem --------------------------------------------- 10-13
• (17) What is the Size of the Allen Wrench for Splitting the Cabinet ---------------- 10-13
• (18) HDMI Doesn’t Work --------------------------------------------------------------------------- 10-13
• (19) Downloading the Latest Software ------------------------------------------------------- 10-14
• (20) Losing Most Channels on the PinP Window (With CableCARD) -------------- 10-14
• (21) Preventing CRT Phosphor Spots -------------------------------------------------------- 10-15
• (22) Horizontal Line Noise in Top Corners Prevention ---------------------------------- 10-16
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DP-6X THINGS YOUR SHOULD KNOW
PAGE 10-01
(01) ATSC Reception problems: Important information to gather when encountering a customer with ATSC reception problems. Please gather all information listed below before calling for Technical Assistance. (See below for contact information).
1. Make sure we are dealing with ATSC reception issues only, please. 2. Model and serial number...By the way, we are placing ALL model and serial
numbers on the front right hand side of the units. 3. Did the customer run auto programming? Please run auto programming again just in case. 4. Signal strength on this channel? Available through customer menu. 5. What kind of antenna are they using? Rabbit Ears? Roof antenna? Are they using antenna rotor? Cable? 6. What is the Software version? This is available through the customer menu. 7. What channel is having the problem? Digital channels are a main channel and a sub channel, always
displayed as : 25-1 or 25-2 and 25-3, 25-4, etc,. Please ask for all sub channels available, sometimes there are more than one or two.
8. Do they know it's respective channel on analog format (NTSC)? Is the analog channel coming in ok? Just to give you an example: San Diego channel 8 NTSC is equal to channel 25-1 ATSC, when you do auto programming, you will see 8-1 on TV OSD, but you can also enter: 25-1 and you will also get to the same 8-1 digital channel. We all must be very familiar with this fact in order to see if we can select the channel directly, without the need to do auto programming. See www.transmitter.com for state by state listing of analog/digital equivalency table, their location and their power.
9. What is the stream reception format? You will see: 480i, 480p, 720p or 1080i on the upper section of the OSD when receiving.
10. What is the Channel content? Is this ABC, CBS, PBS? And station identification is needed, like WYCN TV Channel 5 or whatever.
11. Try to contacted the Local Station? Explain the problem to the engineer. They may be able to investigate and make some corrections. If you did speak to someone at the station, whom did you talk to? Name and phone number or e-mail address?
12. Local stations are starting to provide a feedback for their customers mostly through a web page....They always want to know if customer are receiving the Digital Channels and are always looking forward to get feedback.
13. Try PIP and make sure the PIP channel is also the same channel as the one they are trying to receive with Ant C.
14. Describe problem and if possible, send a picture/drawing or a video. 15. Is sound OK? 16. Customer name and phone numbers, please.
Once this information is gathered, please contact Hitachi Technical support (see below) and provide all information gathered. Phone: 800-393-2369 (Authorized Servicers only) Phone: 619-591-5352 (Non-Authorized Servicers only) FAX: 619-482-8045 EMAIL: techsupport@hhea.hitachi.com
(Continued on page 2)
DP-6X THINGS YOUR SHOULD KNOW
PAGE 10-02
(02) Lead Free Solder beginning in 2004. 2004 product will use lead free solder (unleaded) to help preserve the environment. Please read these instructions before attempting any soldering work. Caution: Always wear safety glasses to prevent fumes or molten solder from getting into the eyes. Lead free solder can splatter at high temperatures (140 degrees F) . Lead free solder indicator Printed circuit boards using lead free solder are engraved with an "F". Properties of lead free solder The melting point of lead free solder is 104 ~ 122 degrees F. higher than leaded solder. Servicing solder Solder with an alloy composition of Sn-3.0Ag-0.5Cu or Sn-0.7Cu is recommended. Although servicing with leaded solder is possible, there are a few precautions that have to be taken. (Not taking these precautions may cause the solder to not harden properly, and lead to consequent malfunctions.) Precautions when using leaded solder Remove all lead free solder from soldered joints when replacing components. If leaded solder should be added to existing lead free joints, mix in the leaded solder thoroughly after the lead free solder has been completely melted (do not apply the soldering iron without solder). Servicing soldering iron A soldering iron with a temperature setting capability (temperature control function) is recommended. The melting point of lead free solder is higher than leaded solder. Use a soldering iron that maintains a high stable temperature (large heat capacity), and that allows temperature adjustment according to the part being serviced, to avoid poor servicing performance. Recommended soldering iron: Soldering iron with temperature control function (temperature range: 320-450 degrees F . Recommended temperature range per part:
(03) Fan Part # GS00821: In Digital Module • The Fan Runs all the time. This is normal. • All sets with a Digital Module (ATSC Tuner) has a Fan. • The below chassis utilizes a Digital Module which contains many sophisticated circuits.
A cooling fan is utilized in all Digital Modules (ATSC). It is normal for the customer to hear air circulating and the fan running if the room is quiet. This can be compared to a computer cooling fan as they are very similar. The customer may not be aware of the fact that his or her projection television has a cooling fan incorporated. Please educate the customer with this information. Do not assume that just because the customer can hear the fan that there is a problem with the fan. Only if the fan produces a grinding or ticking sound should it be considered to be defective.
• These Fans are running ALL the time. This is NORMAL operation. These applies to ALL Hitachi units with an integrated ATSC tuner.
• This is, is getting to be a very important issue for all our customers. Remember, one huge difference between their previous TV sets and any of these NEW Digital Models is the fact that their previous TVs never had a fan...therefore, there was no fan noise at all!
• Now, once they notice the fan noise, some of them do not like it. First thing they do is: They call for service. Many Technicians MAY NOT be familiar with these units, therefore, they can not tell if the noise is actually normal or too noisy!
(Continued on page 3)
Part Soldering iron temperature
Mounting (chips) on mounted PCB 608 +/- 86 degrees F
Mounting (chips) on empty PCB 716 +/- 86 degrees F
Chassis, metallic shield, etc. 788 +/- 86 degrees F
DP-6X THINGS YOUR SHOULD KNOW
PAGE 10-03
• Replacing the fan just to see if the noise goes away or to reduce it is just too much work and it will be for nothing....then the Customers will be disappointed to find out the noise is still there (after any of the fans/modules/or even complete TV sets were replaced). But once they hear the explanation related to the REA-SON why they hear this noise, they always understand.
• New Technology requires the use of faster processors, these processors require the use of cooling fans. Al-though minimal, these fans do make noise when they are running, this is "normal" operation noise.
(04) CRT- I need to Change All Three CRTs, what to do? In a situation where it becomes necessary to replace all three CRTs, it may not be as big a job as first considered. There are many times in which if a couple of First steps are followed, the job may be very easy thanks to Magic Focus. IMPORTANT: You must find the reason for the CRT burn ( if this is the reason for replacing all three CRTs at once), before installing the new CRTs. Look for Deflection collapse caused by poor solder connections on the Yoke Plugs, Convergence Yoke Plugs, Vertical Output IC, Drive Transformer and/or Flyback. Make sure the H and V Sweep Loss circuit is functioning. Make sure the Yoke plugs are seated properly. Clean all Spark Gaps. Pry off the caps on top of each spark gap and clean the contacts with a thin, fine sand paper. Reinstall the caps. Solder all interconnections between the Signal PWB and the Deflection PWB. THINGS TO REMEMBER: • If at least one of the defectives CRTs is properly set up (in relationship to geometry) then it can be used as a
guide for setting up the new CRTs. This means you have checked that the Center is in dead center and that the lines running left to right and top to bottom are straight and all the grids are linear.
• Magic Focus will be your biggest friend in the process. • If at all possible, do not remove all three defective CRTs at once. Leave the best adjusted CRT in place until
the other two new ones have been installed and aligned. • You most likely will not need an Overlay unless the set is already a mess related to geometry. HERE IS THE PROCESS: • After receiving the new CRTs, first determine which of the defective CRTs is best aligned. (This doesn't
matter which color). For our discussion we will say it's the Red. • Remove the Defective Green CRT. • Install the New Green CRT. • Clear the RAM. (With Power Off, press and hold the Service Only switch. The press the Power Button on
the Front Panel). Set will come on with cleared RAM. No Convergence Correction. • Loosen the Yoke on the New Green CRT and rotate it until it matches the Defective Red Vertically and
Horizontally (TILT) while looking only at the center. Don't worry if the Center isn't aligned with the Red. After adjusting the Tilt, tighten the Yoke.
• Run a string from the top left corner to the bottom right corner. • Run a string from the top right corner to the bottom left corner.
(This will give you a center mark where the strings cross.) • Now, using the centering magnet for Green, adjust Green to the center mark where the two strings cross.
Remember that the RAM has been cleared. In this condition the Red is to the Left of Dead Center and the Blue is to the Right of Dead Center. This is normal.
• Now, Power Off the set. Then turn it back on. This will restore the previous Convergence stored data. If you checked the Red centering before all of this began, (Item 1 under Things To Remember above), then the new Green CRT and defective Red CRT centers should now match.
• Run Magic Focus. This should now return the set to proper Convergence or at least very close where only a minor touch up should be required. You can do this touch up now or wait and do it after all three CRTs has been replaced.
Now, do the same thing with the New Blue CRT starting with step (2) above.
DP-6X DIGITAL MODULE SOFTWARE UPGRADE PROCEDURE
PAGE 10-04
How to do a Software Upgrade on the ATSC Digital Module. Check web site for current version. Preliminary Procedure: Note: MMC = Multi-Media Card (Page 1 of 3) Gain access the rear of the TV. Insert the MMC (Figures 1 and 2) into the Multi Media Card slot as shown in Figures 3 - 6. Push the MMC in until you hear a click, indicating the MMC is properly inserted.
Top View - MMC (Figure 1) Bottom View - MMC (Figure 2)
Example of Software Version Note: Software Version number will vary in accordance to the Version Released. Your Version may be different than the one shown.
Rear View - TV Jack Panel (Figure 3)
Close Up View of the MMC Slot (Figure 4)
Continued on Next Page
MMC goes in this direction (Figure 5)
MMC Fully Inserted (Figure 6)
DP-6X DIGITAL MODULE SOFTWARE UPGRADE PROCEDURE
PAGE 10-05
Upgrade Procedure: Step (1) Insert MMC Card fully into slot until it clicks. Step (2) Turn the TV ON. Step (3) Press the MENU button on the Remote. Step (4) Menu will appear
Step (5) Thumbstick Down and Highlight SETUP and press SELECT.
Step (6) The Setup Menu will appear. Step (7) Continue to Cursor down and highlight Upgrades and press Select.
Step (9) Cursor Down and Highlight Upgrade Now and press Select.
Continued on Next Page
Step (8) If the MMC card isn't already inserted, insert MMC card fully until it Clicks.
Continued on Next Page
DP-6X DIGITAL MODULE SOFTWARE UPGRADE PROCEDURE
PAGE 10-06
Step (12) After Software upgrade/s have been successfully completed, please turn the power off. Remove the MMC Software Upgrade Card from the rear of the TV. Then unplug the AC power cord for 60 seconds to reset the TV. Plug in the AC power cord. Repeat steps 2 through 8 to check the software version for verification.
Step (10) The Upgrade begins. Upgrade will take approximately 2 ~ 3 minutes.
Step (13) Your software version should now show correct version number as shown on the MM Card front Label.
Note: To remove the MMC, gain access to the rear of the set. Push the card in until a click is heard, this will release the MMC and then remove the card.
NOTE: The MMC must be removed and returned to Hitachi in order to receive any future upgrades.
Step (11) After the Software Upgrade is Complete, *If your product has already been upgraded or is the same version as the one on the MMC, this step will be bypassed. Note: The old Software Version will still appear on the screen. The updated software version will not appear until the TV is Reset. See the Next Step.
Continued on Next Page
DP-6X DIGITAL MODULE SOFTWARE UPGRADE PROCEDURE
PAGE 10-07
IMPORTANT NOTE: Are you aware that HDTV/SDTV Channels that are shown On Screen may not be the actual channel numbers that you would press on the TV remote control to tune that specific channel? In other words, what you see on the PTV Screen is called VIRTUAL CHANNEL. As and example, to receive (8-1) in San Diego (with out running auto programming in a DTV ) you will actually need to tune to channel 55. Because UHF channel 55 is were they are receiving the Digital Virtual channel 8-1. The Virtual Channel infor-mation is embedded within the data received is the Virtual Channel ID. This was decided because the Customer will know that the HDTV channel they are watching will be a known channel in their area. This will help them to recognize the channel of origin. Below is an excellent web site to visit. This can be a tool that will help you KNOW what the actual channel is when you are going to randomly select them by remote control number keys. You can just select it without a need to run auto programming (on most units ~ with exception of the WXW prior to software upgrade). http://www.transmitter.com DTV Channel Allocation for the whole USA… SOFTWARE UPGRADE PROCEDURE QUICK STEPS. 1. Insert the MM Card software upgrade card into the MM Card slot in the read of the set. Be sure to
push in until a click is heard. Note. Label on the card is to the left. 2. Turn the Set On. 3. Press Menu and Select Setup. 4. Thumbstick down to the 2nd page of the Setup Menu and Select Upgrades. 5. Thumbstick down and Select Upgrade Now. 6. After completion, Power off the set, Remove the MM Card, wait 60 seconds. 7. To verify the upgrade took place, repeat steps 2 through 4 and check the version. NEW: The Software can be downloaded from our web site. www.hitachiserviceusa.com (User Name and Password required). Go to the Training section and click on “Software Version and Download Page” link.
PAGE 10-08
CONVERGENCE CAN NOT BE CORRECTED
1. Convergence can not be corrected (How to Trouble Shoot)
What Color has shif ted? A
DCU OUT CHECKPDCU pin 2 (RH)....(*1)PDCU pin 4 (RV)....(*2)
DCU OUT CHECKPDCU pin 6 (GH)....(*1)PDCU pin 8 (GV)....(*2)
DCU OUT CHECKPDCU pin 10 (BH)....(*1)PDCU pin 12 (BV)....(*2)
GreenRed Blue
OK
Which has shifted?VERTICAL line or
HORIZONTAL Line?
Which has shifted?VERTICAL line or
HORIZONTAL Line?
Which has shifted?VERTICAL line or
HORIZONTAL Line?
OK OKRepair DCU
Circuit
HORIZONTALLine
VERTICALLine
NoGood
NoGood
CHECK or CHANGERK18 & RK19 (RV)IK01 (Conv Amp)
CHECK or CHANGERK14 & RK15 (RH)
CHANGEIK01 (Conv Amp)
HORIZONTALLine
VERTICALLineCHECK or CHANGE
RK26 & RK27 (BV)IK02 (Conv Amp)
CHECK or CHANGERK22 & RK23 (BH)
CHANGEIK02 (Conv Amp)
CHECK or CHANGERK34 & RK35 (GV)IK02 (Conv Amp)
CHECK or CHANGERK30 & RK31 (GH)
CHANGEIK01 (Conv Amp)
VERTICALLine
HORIZONTALLine
NoGood
DP-6X CONVERGENCE TROUBLE SHOOTING Page 1 of 2
All Colors
Before begining, resolder all connections on the Convergence Output STKs
RED GREEN BLUE
*1 denotes see Figure 1on next page.
*2 denotes see Figure 2on next page.
8.2 Ohm 1 Wattp/n AT03213S
4.7 Ohm 1 Wattp/n AT03206S
5.6 Ohm 1 Wattp/n AT03208S
8.2 Ohm 1 Wattp/n AT03213S
6.8 Ohm 1 Wattp/n AT03211S
4.7 Ohm 1 Wattp/n AT03206S
Convergence Output STKs IK01 & IK02 p/n CZ01251 STK394- 710
PAGE 10-09
CHECK DCU input (*1)Is Voltage at
PDCU pin 40 (5V)?PDCU pin 44 (-5V?)
OK
+5V CheckIC01 SW+5.6V Input pin 8
IC01 +5V Output pin 1-5V Check
QC16 SW-24V Line Emi tterQC16 -5V Collector
A
NG
CHECK DCU input (*2)PDCU pin 36 (V BLK).. (*3)PDCU pin 32 (H BLK).. (*4)
CHECK DEFLECTION CIRCUITVertical Blanking V. Blk. (I601 pin 11)
Pin 7 PDT2Horizontal Blanking H. Blk (Q706) Emi tter
Pin 4 PDT2
NG
CHECKRK14, 15, 18, 19, 22, 23
26, 27, 30, 31, 34, 35CY Amp (IK01, IK02)
OK
(1) PDCU Connector Pin 2 (RH) Pin 6 (GH) Pin 10 (BH)
(2) PDCU Connector Pin 4 (RV) Pin 8 (GV) Pin 12 (BV)
(4) PDCU pin 32 (H. BLK)
GND
Vpp = 2~5 (V)
30 (us) 16 ~ 17 (ms)30 (us)
Vpp = 4~5 (V)
ALSO CHECK Conv.Mute PDCU pin 1. (Normal Hi).IK03 for leak or short.Convergence Mute (Reset)DC29 for leak.QC17 for leak or activa tion.
DP-6X CONVERGENCE TROUBLE SHOOTING Page 2 of 2
(3) PDCU pin 36 (V. BLK)
16 ~ 17 (ms)
Vpp = 4~5 (V)
*1 Indicates see Figure 1 below
*2 Indicates see Figure 2 below
*3 Indicates see Figure 3 below*4 Indicates see Figure 4 below
DP-6X THINGS YOUR SHOULD KNOW
PAGE 10-10
(7) The Model and Serial Number is on the Front Right Hand Side for easy access.
Figure 1 shows the location of the Model and Serial Number tag. This can be seen without moving the set or requiring any disassembly.
Figure 3 shows the actual location of the Model and Serial Number tag. This can be seen without moving the set or requiring any disassembly. This picture is actually of an LCD Projection set, but the location is the same for all classes of PTVs.
Figure 2 shows the a Close Up of the Model and Serial Number tag.
(08) Using HDMI and a Cable Box, some HD signals give an Error Message: ERROR NOTICE: HDMI Interface with some Cable Boxes. When selecting some HD Channels, the notice reads as follows: "The HD content protection on your display has been compromised. Please use the Y Pb/Pr Outputs for your HD connection". Or "Monitor Does not support HDCP" or “Lower Resolution” or “Snow”. The warning will show up at power on and will remain there if left alone. EXPLANATION: "This is not a problem with the Projection Television". With the addition of Digital transmission, many avenues of private digital data and usage privileges are being incorporated into the transmission stream. During this age of HD infancy, these codes are being manipulated and can generate this situation. HDCP is the issue here. Please contact your local cable operator for additional information. A temporary work-around is to disconnect and reconnect the HDMI cable between your cable box and TV. Your patience is appreciated until this issue can be resolved by the cable operator. NOTE: Both the TV and the Set Top Box Must Be ON.
Figure 1
Figure 2
Figure 3
DP-6X THINGS YOUR SHOULD KNOW
PAGE 10-11
(09) Using the Cutoff Adjustment to check for a bad CRT. • Symptoms: (Also See Item 11 below for Spark Gap problems)
• Color Temperature changes. • Picture Flickers. • Brightness fluctuations.
Did you know that you can check for a defective CRT (internal grid shortage) by looking closely at the single horizontal line while in the Cut-Off adjustment mode?
In this mode, the Vertical is collapsed so the Service Technician can adjust the Cut-Off level of each CRT. (Note: This determines the Life Span of the CRT. If this adjustment is too bright, the Tube Life is shortened).
PROCEDURE:
• Enter the I2C Service Menu and Select the SERVICE adjustment by using the cursor down and then press cursor right. Vertical will collapse.
• While looking at the single colored line, look at any color to see if it's blinking or flickering. If it is, the CRT needs to be replaced. The Room should almost dark to make the line easier to see. You may have to turn the Screens up slightly to see the line more clearly. Remember, the line should be just barely visible.
• If a Color can't be turned completely off, this too indicates a defective CRT and can quickly identify when CRT is bad.
• Replace the defective CRT.
(Note: This isn't related to the Digital Convergence Grid. The Cursor (adjustment point) will blink in this mode and this is normal).
(10) Picture Dark, abnormal, Changing Color Temperature.
• Clean the Spark Gaps on each CRT PWB. Remove the Cap, clean the contacts with thin fine sand paper, blow out, reseal.
(11) POD (Cable Card) Possible Problems 1: Make sure software is current version: (See the Web Site to confirm current version). 2: If after inserting the Cable Card, the unit IDENTIFIES the Cable Card and goes on to provide a
notice as to how to start Service or it just starts receiving the approved programming. If all this goes on, it is obvious that card and the host (receiver) have established what is commonly known as the "Handshake" and all is Normal. If for any reason, this does not happen, and the "Handshake" does not occur, there still may not be a problem. Try leaving the Card inserted for a longer period of time. If this seems to take too long, insert the card just before retiring for the evening. Leave the Card in-serted over night. Set does not have to be on. There are many reasons that the Card may take an extremely long time to initiate the handshake func-tion. This could be due to traffic, server issues, etc... Please make sure to follow these steps first be-fore considering the Cable Card as being defective. If after an overnight attempt has failed to initialize the Card, then most likely there is a problem with the Cable Card itself. Please get a different or a new Cable Card to try again. Continued on next page
DP-6X THINGS YOUR SHOULD KNOW
PAGE 10-12
(12) Lip Sync Issues: This is a news letter written by an engineer at KFMB in San Diego. It explains the cause and things that may help when a problem of "Lip Sync" is encountered. KFMB Digital TV Newsletter Number 19 . January 19, 2003 READ MY LIPS The HDTV forums have been abuzz about poor lip sync on several local HDTV channels. This is potentially a real nightmare for digital broadcasters, and I'll take a little time here to explain why, and what you can do about it. By definition, lip synchronization is another way of saying that the audio portion of a TV program matches in timing the video portion. In the good old days, this simply meant that the lower loop of film on the projector was not of the right size because your projec-tor slipped a few sprockets and you would just reach over and adjust it during the next break. In about 1980, video synchronizers started showing up at TV stations that allowed us to use special effects with sources that were of a completely different timing, like remote news vehicles and networks from outside the station. Without those synchroniz-ers, fading or special effects would just look like a mess on-air. However, they introduced a problem: they delayed video without delaying audio. This wasn't much of a problem for a single frame of delay because few people can detect it. But add a couple of frames for network processing and complex effects, and suddenly you have visible lip sync problems. Audio delay units were introduced, but few stations used them. KFMB used a monaural one until we went stereo in 1990. When the Audio Engineering Society (AES) defined digital audio in the early 1990s, they seemingly forgot to deal with synchronizing audio with video. There are no clues built into the AES audio stream for where a given audio frame is in time with respect to an accompanying video stream. There's no chance of having automatic lip sync. Fast-Forward to 1999 We open a new all-digital master control and disk drive servers to replace tape-delivered programming and commercials. Some sources have ways to adjust audio timing, and some don't. Now we have a digital transmitter and an analog one. When producing the news, we find that the more complex a video effect is, the more video delay we have, with real lip sync issues when carrying the video from several remote sites on the screen at the same time. We build a box that tells our new audio syn-chronizer/converter to delay a given amount depending on the combination of sources used. The box works well. In 2001, we open a new all-digital production control that fixes the variable delay problem. Life is good, but intermittent problems with lip sync still show up. Software bugs and corrupt data occasionally plague the station's digital encoder. Remote satellite sources still have lip sync issues at their source left for us to solve on the fly. In late 2002, our digital stream is added to the local cable companies. Since there's zero transmission loss, they use our on-air signal for a redistribution medium. However, they have to re-encode the signal in order to get the correct channel information, program guide, and 256-QAM modulation scheme, thereby introducing another potential source of lip sync problems. As digital viewers, you too can introduce your own problems: You are at the mercy of electronics designers as to how much audio or video delay they introduce. If you use analog cables to transfer audio between your receiver or set-top box (STB) and your audio amplifier/processor, you have a digital-to-analog converter at the STB and an analog-to-digital converter at the processor/amplifier, each introducing au-dio delay, whether a little or a lot. If you have acoustic effects chosen on your amplifier, you may introduce more delay. If your receiver/STB gets corrupt data or becomes otherwise confused, it can introduce delay by mistake. What's a Mother to Do? First of all, make sure you have a problem. We evaluate for lip sync watching for speech in which the on-camera person moves his or his lips to annunciate plosive "B" and "P" sounds. Be careful that you're not seeing it on a poorly dubbed single commercial or program. We're going to ask you to be forgiving when there may be a temporary problem with a hastily organized satellite remote news story--bad things happen in the field sometimes. If you encounter disturbing lip sync problems, answer a few questions before you ask for help: Does the problem exist on all over-the-air, cable, and satellite channels? If so, you surely have a local problem. Try resetting your receiver/STB and processor/amp by unplugging for a few seconds and then plugging back in. What is the source? Does the problem exist with all commercials, programs, and live news? Note this to help the person you complain to. When did the problem begin? Have you checked the enthusiast forums to see if others have the same problems? A nice website for San Diegans is http://hdtv.forsandiego.com. Have you reset your receiver and lip sync is still an issue on all channels? You should contact the cable company in order to determine whether the problem is with you, them, or their sources. Does the problem exist on only one channel? Call the provider (cable or DBS) or the source channel. Each will have to analyze the source and determine the source of the problem. At most stations, they have access to view their own sources, line output signal, analog air signal, digital air signal, and Time Warner cable analog and digital signals. We count on Cox Cable to evaluate our signals on their system.
DP-6X THINGS YOUR SHOULD KNOW
PAGE 10-13
(Continued from previous page) (13) What equipment can I use to generate an HD signal?
• Please see our web site at the following address; • http://www.hitachiserviceusa.com/Service/Seminars/DP4X-Web/09-things-to-
know/16_HD_Gen.htm (14) Some VGA to Component Adaptors can cause No Picture or Sync Problems.
• Some Set Top Boxes do not have Component Outputs. They have VGA outputs. In this case, a VGA to Component adaptor will be needed. Some of these adaptors can cause a problem if they do not have Tri-Level sync outputs.
• They may cause other problems as well, like Horizontal Shift or unstable pictures. • Please remove the VGA to Component adaptor and test the Component inputs by using a
Component generator directly into the Component inputs to verify. • Please see the VGA to Component adaptor recommendations on the HD Generator sugges-
tion page. Note: If a Component Source isn't readily available, use Composite Video input into the "Y" jack. Insert a dummy RCA jack into the "Pr" plug to force the set into the Com-ponent Mode.
The signal will be black and white, but the picture content (other than color problems) can be checked. (15) POD (CableCARD) no longer works after Memory Initialize or some parts replaced.
• The CableCARD will no longer work after replacing the Digital Module. • The CableCARD will no longer work after replacing the Signal PWB with the Digital
Module. When the Customer first receives their Cable Card, they must insert the card and have it authenticated by the Cable company. Then the customer must call the Cable company with the Host ID information. After this, the Cable company then sends out data that provides the Cable card with channel mapping and the allowable channels for this particular customer to view.
• If a Factory Reset is preformed, the Cable Card is no longer authenticated and the cus-tomer must repeat the process of re-authentication.
• If a Memory Initialization is preformed, the Cable Card is no longer authenticated and the customer must repeat the process of re-authentication.
• If the Digital Module is replaced, the Cable Card is no longer authenticated and the cus-tomer must repeat the process of re-authentication.
• If the Signal PWB with the Digital Module is replaced, the Cable Card is no longer au-thenticated and the customer must repeat the process of re-authentication.
(16) POD (Cable Card) Problems, Digital Tuner Problems.
POSSIBLE CORRECTION: • Be sure to check for the Current Software Version. • Check the Web Site for Current Software Version number.
(17) What is the Size of the Allen Wrench for removing the Split Cabinet Screws?
• 4 mm
(18) HDMI Doesn't Work Please clean the HDMI input contacts with Isopropyl Alcohol using a stiff thin brush.
• Symptom -Using HDMI connection, black picture with NO SYNC OSD. • Sometimes contaminants can cause poor connections on the DVI and/or
HDMI inputs. Cleaning these contacts will eliminate the problem.
DP-6X THINGS YOUR SHOULD KNOW
PAGE 10-14
(19) Download the Latest Software Upgrade Software The Software can be downloaded from our web site. www.hitachiserviceusa.com (User Name and Password required). Go to the Training section and click on “Software Version and Download Page” link. (20) Losing Channels on 1/2 of the PinP Window (Analog Half)
• Most often noticed when using a Cable Card. If the Cable service provider decides that they are going to all Digital Channels, then our TVs, will lose ALL or most channels on the Analog Tuner side. The Channels they lose will be the ones that are Digi-tal (QAM). Only the Analog channels will remain, if any. There is nothing wrong with your TV set. Please note that this set is using One Analog and One Digital tuner. Every time we use PinP and the 2nd tuner is selected as the Sub picture, the Sub picture can ONLY BE ANALOG (NTSC). DETAILS: As Cable Companies modernize, they are approaching a Digital solution. This improves picture per-formance even on the lower resolution signals and helps to minimize transmission loses. It also im-proves band performance. These Cable companies provide a "Set Top Box" (Cable Box) to receive and decode these digital broadcast. So as it stands right now, the Cable companies can be broadcast-ing Analog (NTSC), Digital NTSC (QAM) and SD/HD Digital (QAM). Note: QAM (Quadrature Amplitude Modulation). If the Customer is using a Cable Box, then they do not notice a problem, since the Cable Box only outputs one channel at a time.. If the Customer decides to hook the Cable directly into the set and bypass using a Cable Box, then is-sues arise that may appear to be a problem. Sets which include an HD Tuner will receive ATSC (over the air SD/HD digital broadcast) and QAM (Cable digital broadcast). The Analog (NTSC) tuner will only receive NTSC analog broadcast signals. Most Customer's who decide to hook Cable directly into the set, will in turn most often decide on using a CableCard application. This will allow the set to receive the Channel Mapping (what channels are broadcast on what frequencies) from the Cable company so their channel selection will match the Channel listings provided by the Cable company. So when they now try to activate PinP and have the Sub picture selected on the Analog tuner, there will be only a few channels available, if any. These will be the NTSC channels only. Many Servicers are trying to "fix" these problems....After replacing many parts, they end up exactly at the same place. PIP with CableCARD will not be getting most channels on the one side using the Ana-log Tuner. There is nothing wrong with your TV set.
MODEL: 51F710A, 57F710A, 65F710A (DP55) 51F710E, 57F710E, (DP57) 51F710G, 57F710G, (DP55) 51F59, 57F59, 65F59, (DP65) 51F59A, 57F59A, 65F59A (DP65G) 51F59J, 57F59J, 65F59J, (DP65G)
SUBJECT: PRT SPOT PREVENTION
Details: If one or more PRTs have a spot mark around the center, check the +220V filter capacitor, CP50 (DP-5x chassis) or C965 (DP-6x chassis); if value is 100 f/250V, replace with 220 f/250V (p# AL00065S). See images below for physical location; Figure 1 for DP-5x chassis, Figure 2 for DP-6x chassis.
PTVPage 1 of 1
June 2006
Hitachi America, Ltd., Home Electronics Division National Service
PTV 06-01b
C965
CP50
Figure 2 - DP6x Chassis
Figure 1 - DP5x Chassis
PAGE 10-15
MODEL: 51F59, 57F59, 65F59 (DP65) SUBJECT: Horizontal Noise Lines
Details: If a symptom such as shown in Figure 1 appears, (more visible in brighter scenes), check the Deflection PWB to see if location K025 has been replaced by a coil. If there is still a jumper in place, replace it with a 47 h coil, p/n BH01889R. See Figures 2 and 3 for location.
PTVPage 1 of 1
June 2006 Hitachi America, Ltd., Home Electronics Division National Service
PTV 06-02
Figure 1 - Horizontal noise in upper corners
Figure 3 - Component sideFigure 2 - Solder side
PAGE 10-17
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