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TRANSCRIPT
PORTABLE DVDSERVICE MANUAL
MODELS : DP381B, DP382B, DP383B
CAUTIONBEFORE SERVICING THE UNIT, READ THE “SAFETY PRECAUTIONS”IN THIS MANUAL.
MO
DE
LS : D
P381B
, DP
382B, D
P383B
SE
RV
ICE
MA
NU
AL
P/NO : AFN70285030 NOVEMBER, 2008
Website http://biz.lgservice.comInternal Use Only
Copyright © 2008 LG Electronics. Inc. All right reserved.Only for training and service purposes
LGE Internal Use Only
CONTENTS
SECTION 1.........SUMMARY
SECTION 2.........EXPLODED VIEWS
SECTION 3.........ELECTRICAL
SECTION 4.........REPLACEMENT PARTS LIST
SECTION 1
SUMMARY
CONTENTS
1-2 Copyright © 2008 LG Electronics. Inc. All right reserved.Only for training and service purposes
LGE Internal Use Only
PRODUCT SAFETY SERVICING GUIDELINES FOR VIDEO PRODUCTS .............................1-3
SERVICING PRECAUTIONS ....................................................................................................................1-4• GENERAL SERVICING PRECAUTIONS• INSULATION CHECKING PRODEDURE• ELECTROSTATICALLY SENSITIVE (ES) DEVICES
SPECIFICATIONS ........................................................................................................................................1-5
1-3Copyright © 2008 LG Electronics. Inc. All right reserved.Only for training and service purposes
LGE Internal Use Only
PRODUCT SAFETY SERVICING GUIDELINES FOR VIDEO PRODUCTS
IMPORTANT SAFETY NOTICEThis manual was prepared for use only by properly trained audio-video servicetechnicians.When servicing this product, under no circumstances should the original design bemodified or altered without permission from LG Corporation. All components should bereplaced only with types identical to those in the original circuit and their physicallocation, wiring and lead dress must conform to original layout upon completion ofrepairs.
Special components are also used to prevent x-radiation, shock and fire hazard.These components are indicated by the letter “x” included in their componentdesignators and are required to maintain safe performance. No deviations are allowedwithout prior approval by LG Corporation.Circuit diagrams may occasionally differ from the actual circuit used. This way,implementation of the latest safety and performance improvement changes into the setare not delayed until the new service literature is printed.
CAUTION: Do not attempt to modify this product in any way. Never performcustomized installations without manufacturer’s approval. Unauthorized modificationswill not only void the warranty, but may lead to property damage or user injury.
Service work should be performed only after you are thoroughly familiar with thesesafety checks and servicing guidelines.
GRAPHIC SYMBOLSThe exclamation point within an equilateral triangle is intended to alertthe service personnel to important safety information in the serviceliterature.The lightning flash with arrowhead symbol within an equilateral triangleis intended to alert the service personnel to the presence of noninsulated“dangerous voltage” that may be of sufficient magnitude to constitute arisk of electric shock.The pictorial representation of a fuse and its rating within an equilateraltriangle is intended to convey to the service personnel the following fusereplacement caution notice:CAUTION: FOR CONTINUED PROTECTION AGAINST RISK OFFIRE, REPLACE ALL FUSES WITH THE SAME TYPE AND RATINGAS MARKED NEAR EACH FUSE.
SERVICE INFORMATIONWhile servicing, use an isolation transformer for protection from AC line shock. After theoriginal service problem has been corrected, make a check of the following:
FIRE AND SHOCK HAZARD1. Be sure that all components are positioned to avoid a possibility of adjacent
component shorts. This is especially important on items trans-ported to and from therepair shop.
2. Verify that all protective devices such as insulators, barriers, covers, shields, strainreliefs, power supply cords, and other hardware have been reinstalled per theoriginal design. Be sure that the safety purpose of the polarized line plug has notbeen defeated.
3. Soldering must be inspected to discover possible cold solder joints, solder splashes,or sharp solder points. Be certain to remove all loose foreign particles.
4. Check for physical evidence of damage or deterioration to parts and components,for frayed leads or damaged insulation (including the AC cord), and replace ifnecessary.
5. No lead or component should touch a high current device or a resistor rated at 1 wattor more. Lead tension around protruding metal surfaces must be avoided.
6. After reassembly of the set, always perform an AC leakage test on all exposedmetallic parts of the cabinet (the channel selector knobs, antenna terminals, handleand screws) to be sure that set is safe to operate without danger of electrical shock.DO NOTUSE ALINE ISOLATION TRANSFORMER DURING THIS TEST. Use anAC voltmeter having 5000 ohms per volt or more sensitivity in the following manner:Connect a 1500 ohm, 10 watt resistor, paralleled by a .15 mfd 150V AC typecapacitor between a known good earth ground water pipe, conduit, etc.) and theexposed metallic parts, one at a time. Measure the AC voltage across thecombination of 1500 ohm resistor and .15 mfd capacitor. Reverse the AC plug byusing a non-polarized adaptor and repeat AC voltage measurements for eachexposed metallic part. Voltage measured must not exceed 0.75 volts RMS. Thiscorresponds to 0.5 milliamp AC. Any value exceeding this limit constitutes a potentialshock hazard and must be corrected immediately.
TIPS ON PROPER INSTALLATION1. Never install any receiver in a closed-in recess, cubbyhole, or closely fitting shelf
space over, or close to, a heat duct, or in the path of heated air flow.
2. Avoid conditions of high humidity such as: outdoor patio installations where dew is afactor, near steam radiators where steam leakage is a factor, etc.
3. Avoid placement where draperies may obstruct venting. The customer should alsoavoid the use of decorative scarves or other coverings that might obstruct ventilation.
4. Wall- and shelf-mounted installations using a commercial mounting kit must followthe factory-approved mounting instructions. Aproduct mounted to a shelf or platformmust retain its original feet (or the equivalent thickness in spacers) to provideadequate air flow across the bottom. Bolts or screws used for fasteners must nottouch any parts or wiring. Perform leakage tests on customized installations.
5. Caution customers against mounting a product on a sloping shelf or in a tiltedposition, unless the receiver is properly secured.
6. A product on a roll-about cart should be stable in its mounting to the cart.Caution the customer on the hazards of trying to roll a cart with small casters acrossthresholds or deep pile carpets.
7. Caution customers against using extension cords. Explain that a forest ofextensions, sprouting from a single outlet, can lead to disastrous consequences tohome and family.
1-4 Copyright © 2008 LG Electronics. Inc. All right reserved.Only for training and service purposes
LGE Internal Use Only
SERVICING PRECAUTIONS
CAUTION: Before servicing the PORTABLE DVD covered bythis service data and its supplements and addends, read andfollow the SAFETY PRECAUTIONS. NOTE: if unforeseencircumstances create conflict between the following servicingprecautions and any of the safety precautions in thispublication, always follow the safety precautions.Remember Safety First :
General Servicing Precautions1.Always unplug the PORTABLE DVD AC power cord from
the AC power source before:(1) Removing or reinstalling any component, circuit board,
module, or any other assembly.(2) Disconnecting or reconnecting any internal electrical
plug or other electrical connection.(3) Connecting a test substitute in parallel with an
electrolytic capacitor.Caution: A wrong part substitution or incorrect polarityinstallation of electrolytic capacitors may result in anexplosion hazard.
2.Do not spray chemicals on or near this PORTABLE DVD orany of its assemblies.
3.Unless specified otherwise in this service data, cleanelectrical contacts by applying an appropriate contactcleaning solution to the contacts with a pipe cleaner, cotton-tipped swab, or comparable soft applicator. Unless specified otherwise in this service data, lubrication ofcontacts is not required.
4.Do not defeat any plug/socket B+ voltage interlocks withwhich instruments covered by this service manual might beequipped.
5.Do not apply AC power to this PORTABLE DVD and / or anyof its electrical assemblies unless all solid state device heatsinks are correctly installed.
6.Always connect the test instrument ground lead to anappropriate ground before connecting the test instrumentpositive lead. Always remove the test instrument groundlead last.
Insulation Checking ProcedureDisconnect the attachment plug from the AC outlet and turnthe power on. Connect an insulation resistance meter (500V)to the blades of the attachment plug. The insulation resistancebetween each blade of the attachment plug and accessibleconductive parts (Note 1) should be more than 1Mohm.Note 1: Accessible Conductive Parts include Metal panels,Input terminals, Earphone jacks,etc.
Electrostatically Sensitive (ES) DevicesSome semiconductor (solid state) devices can be damagedeasily by static electricity. Such components commonly arecalled Electrostatically Sensitive (ES) Devices. Examples oftypical ES devices are integrated circuits and some field effecttransistors and semiconductor chip components.The following techniques should be used to help reduce theincidence of component damage caused by static electricity.
1. Immediately before handling any semiconductor componentor semiconductor-equipped assembly, drain off anyelectrostatic charge on your body by touching a known earthground. Alternatively, obtain and wear a commerciallyavailable discharging wrist strap device, which should beremoved for potential shock reasons prior to applying powerto the unit under test.
2.After removing an electrical assembly equipped with ESdevices, place the assembly on a conductive surface suchas aluminum foil, to prevent electrostatic charge buildup orexposure of the assembly.
3.Use only a grounded-tip soldering iron to solder or unsolderES devices.
4.Use only an anti-static solder removal device. Some solderremoval devices not classified as “anti-static” can generateelectrical charges sufficient to damage ES devices.
5.Do not use freon-propelled chemicals. These can generatean electrical charge sufficient to damage ES devices.
6.Do not remove a replacement ES device from its protectivepackage until immediately before you are ready to install it.(Most replacement ES devices are packaged with leadselectrically shorted together by conductive foam, aluminumfoil, or comparable conductive material).
7. Immediately before removing the protective material fromthe leads of a replacement ES device, touch the protectivematerial to the chassis or circuit assembly into which thedevice will be installed.
Caution: Be sure no power is applied to the chassis orcircuit, and observe all other safety precautions.
8.Minimize bodily motions when handling unpackagedreplacement ES devices. (Normally harmless motion suchas the brushing together of your clothes fabric or the liftingof your foot from a carpeted floor can generate staticelectricity sufficient to damage an ES device.)
1-5Copyright © 2008 LG Electronics. Inc. All right reserved.Only for training and service purposes
LGE Internal Use Only
SPECIFICATIONS
• GENERAL
Power requirements DC 9V
Power consumption 13.5W
External dimensions 225 x 40 x 175mm (W x H x D)
Net Weight (Approx.) 1.06kg
Operating temperature: 5ºC to 40ºC
Operating humidity 5% to 90%
Laser Semiconductor laser
Signal system PAL
• CONNECTORS
Audio/Video Output ø3.5mm mini jack x 1
- Video: 1.0V(p-p), 75Ω, sync negative
- Audio: 2Vrms (1kHz, 0dB)
Earphone terminal ø3.5mm stereo mini jack x 2
• LIQUID CRYSTAL DISPLAY
Panel size 8.5 inches wide (diagonal)
Projection system R.G.B. stripe
Driving system TFT active matrix
Resolution 480 x 234 (WQVGA)
• ACCESSORIES
- RCA Video/Audio cable
- AC Adapter (IM090WU-150B)
- Automotive Adapter (G1000233)
- Remote Control
- Battery for Remote Control (Lithium Battery)
* Designs and specifications are subject to change without prior notice.
1-6 Copyright © 2008 LG Electronics. Inc. All right reserved.Only for training and service purposes
LGE Internal Use Only
MEMO
2-1Copyright © 2008 LG Electronics. Inc. All right reserved.Only for training and service purposes
LGE Internal Use Only
SECTION 2
EXPLODED VIEWS
CONTENTS
EXPLODED VIEWS .....................................................................................................................................2-2
1. CABINET AND MAIN FRAME SECTION ..................................................................................................2-2
2. PACKING ACCESSORY SECTION...........................................................................................................2-3
2-2 Copyright © 2008 LG Electronics. Inc. All right reserved.Only for training and service purposes
LGE Internal Use Only
A
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EXPLODED VIEWS
1. CABINET AND MAIN FRAME SECTION
2-3Copyright © 2008 LG Electronics. Inc. All right reserved.Only for training and service purposes
LGE Internal Use Only
2. PACKING ACCESSORY SECTION
PLUG ASS'Y(RCA CABLE)806
834
ADAPTER833
REMOTE CONTROL900
BOX802
801 OWNER'S MANUAL
CABLE, CIGAR JACK
804 PACKING SHEET
835 CAR-MOUNT
808 BATTERY
803 PACKING
GIFT BOX802A
2-4 Copyright © 2008 LG Electronics. Inc. All right reserved.Only for training and service purposes
LGE Internal Use Only
MEMO
3-1Copyright © 2008 LG Electronics. Inc. All right reserved.Only for training and service purposes
LGE Internal Use Only
SECTION 3
ELECTRICAL
CONTENTS
LCD PART ...................................................................................................................................................3-2
LCD ADJUSTMENTS ................................................................................................................................3-2
LCD ELECTRICAL TROUBLESHOOTING GUIDE .........................................................................3-3
BLOCK DIAGRAM......................................................................................................................................3-5
CIRCUIT DIAGRAM ...................................................................................................................................3-7
CIRCUIT VOLTAGE CHART ...................................................................................................................3-9
PRINTED CIRCUIT BOARD DIAGRAM ............................................................................................3-10
MAIN PART ...............................................................................................................................................3-11
MAIN ELECTRICAL TROUBLESHOOTING GUIDE .....................................................................3-111. POWER (DC-DC CONVERTER) CIRCUIT..........................................................................................3-112. MPEG CIRCUIT ...................................................................................................................................3-143. SERVO CIRCUIT .................................................................................................................................3-154. CHARGING CIRCUIT ..........................................................................................................................3-17
WIRING CONNECTION DIAGRAMS..................................................................................................3-181. WIRING CONNECTION DIAGRAMS-1 ...............................................................................................3-182. WIRING CONNECTION DIAGRAMS-2 ...............................................................................................3-193. WIRING CONNECTION DIAGRAMS-3 ...............................................................................................3-20
BLOCK DIAGRAMS.................................................................................................................................3-211. OVERALL BLOCK DIAGRAM..............................................................................................................3-212. POWER BLOCK DIAGRAM.................................................................................................................3-223. SERVO BLOCK DIAGRAM..................................................................................................................3-234. SYSTEM BLOCK DIAGRAM................................................................................................................3-245. AV BLOCK DIAGRAM ..........................................................................................................................3-25
CIRCUIT DIAGRAMS ..............................................................................................................................3-271. POWER CIRCUIT DIAGRAM ..............................................................................................................3-272. AV CIRCUIT DIAGRAM........................................................................................................................3-293. CONNECTION CIRCUIT DIAGRAM....................................................................................................3-314. DC-DC CIRCUIT DIAGRAM ................................................................................................................3-335. MPEG CIRCUIT DIAGRAM .................................................................................................................3-356. SDRAM, FLASH & EEPROM CIRCUIT DIAGRAM .............................................................................3-37
CIRCUIT VOLTAGE CHART .................................................................................................................3-39
PRINTED CIRCUIT BOARD DIAGRAMS .........................................................................................3-431. MAIN P.C.BOARD ................................................................................................................................3-432. KEY P.C.BOARD..................................................................................................................................3-473. USB P.C.BOARD..................................................................................................................................3-48
LCD PART
3-2 Copyright © 2008 LG Electronics. Inc. All right reserved.Only for training and service purposes
LGE Internal Use Only
LCD ADJUSTMENTS
1) Power measuringMeasure each power after power supply.
CE38(+): 15V, CE41(-): -10V, CE50(+): 5V, CE49(+): 7.5V, C84(+): 3.5V,
CE47(+): 3.3V
2) VCOM DC level adjustmentAdjust the VCOM DC level by adjust the VR2.Make sure that the VCOM DC
level is between +1.9V and +2.4V.
GND
+2.15
Vcom Waveform
3-3Copyright © 2008 LG Electronics. Inc. All right reserved.Only for training and service purposes
LGE Internal Use Only
LCD ELECTRICAL TROUBLESHOOTING GUIDE
YES
Display condition? LED Backlight/Driver abnormalNO
Appear shadow inblack backgroud
Power supply normal? Check main B/D and repairing
YES
NO
+5V normal? IC(U9) Check and Replace
YES
YES
NO
7.5V, 15V, -10V normal? D16, D17, D18, D19 Check and ReplaceNO
RGB signal output?MTK1389P (Pin:184, 185, 187)
Check and Replace
YES
NO
IC(U8) Check and ReplaceVCOM signal?NO
3-4 Copyright © 2008 LG Electronics. Inc. All right reserved.Only for training and service purposes
LGE Internal Use Only
LCD ELECTRICAL TROUBLESHOOTING GUIDE
YES
LCD TCON signalnormal? (ALL"LOW")
TFT LCD normal? Replace
Main B/D Check
YES
NO
NO
Color normal?Check RGB AMP circuit
(Q29, Q30, Q31) and Replace
YES
YES
NO
TFT LCDPower supply voltage?
+15V, -10V, +5V
Power source, D16, D17, D18, D19Check and Replace
NO
Each connector? Replace and Reassemble
YES
NO
ReplaceENDNO
BLOCK DIAGRAM
3-5Copyright © 2008 LG Electronics. Inc. All right reserved.Only for training and service purposes
LGE Internal Use Only
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3-6 Copyright © 2008 LG Electronics. Inc. All right reserved.Only for training and service purposes
LGE Internal Use Only
MEMO
3-7 3-8
CIRCUIT DIAGRAM
DC-DCFriday, February 22, 2008
BAT_OUT
BAT_OUT
89P_R
OEH
STVL
89P_G
VCOMOVCOM
VGL
BOUT
7VD5
CPH1
MCU 3.3V
VGL
VCOM
89P_G
CKV
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VGH
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3.3V
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IR
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CKV
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LNR
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V_BIAS
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AMP_VDD
AMP_VDD
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+
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U8 CSC3414AM1234 5
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C68
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R137
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32
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+CE48
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C61
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R160
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+
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2625242322212019181716151413121110987654321
+CE45
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C72
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C62 1uF
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987654321
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R136
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C78
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R186
7.5K
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R177
270
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2
3 1
GND
IN OUT
+
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R187
75
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0.1uF
D24
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C1
0.1uF
D18
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C80
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C2OPEN
R151
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R159
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L38 22uH
R153
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1
32
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+
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C71
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+CE49
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S18
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S15
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D19
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+
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+ CE35
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23
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3
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R4 1K2/1%
R184
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R142 0
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4.7K
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R135
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R1 3K/1%
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+
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R133
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R157
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R149
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C86
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R138 10K
C65
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PLAY
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+CE37
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R180
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R179
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R
A
K
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7.5K
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C69
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32
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987654321
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R175
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12
L36 1.8uH
R131 100R
+
CE41
10uF/25V
R176
20K
Copyright © 2008 LG Electronics. Inc. All right reserved.Only for training and service purposes
LGE Internal Use Only
PRINTED CIRCUIT BOARD DIAGRAM(TOP VIEW)
3-9 3-10
CIRCUIT VOLTAGE CHART
Copyright © 2008 LG Electronics. Inc. All right reserved.Only for training and service purposes
LGE Internal Use Only
PIN NO. STOP PLAY
CE39+ 1.51 1.51
- -0.1 -0.1
CE40+ 2.05 2.05
- 0.43 0.43
CE47+ 3.23 3.23
- 0 0
CE49+ 7.99 7.99
- 0 0
CE50+ 5.02 5.02
- 0 0
CE51+ 3.24 3.24
- 2.58 2.58
CE52+ 1.91 1.91
- 0.44 0.44
CE53+ 3.28 3.28
- 2.59 2.59
CE54+ 1.18 1.18
- 0.44 0.44
CE55+ 3.26 3.26
- 2.59 2.59
CE56+ 1.18 1.18
- 0.44 0.44
C84+ 3.58 3.58
- 0.21 0.21
Q1Emitter 3.3 3.3
Collector 0.01 0.01
Base 3.3 3.3
Q29Emitter 0.5 0.5
Collector 3.24 3.24
Base 1.18 1.18
Q30Emitter 0.49 0.49
Collector 3.27 3.27
Base 1.18 1.18
PIN NO. STOP PLAY
Q31Emitter 0.49 0.49
Collector 3.26 3.26
Base 1.18 1.18
Q32Emitter 1.01 1.01
Collector 1.02 1.02
Base 0.51 0.51
Q33Emitter 0 0
Collector 0.04 0.04
Base 0.64 0.64
U8(NJM3414A)1 0.42 0.42
2 0 0
3 0 0
4 -11.59 -11.59
5 0.42 0.42
6 0.42 0.42
7 0.42 0.42
8 5.02 5.02
U9(SS9969)1 8 8
2 0 0
3 5.02 5.02
U10(SS6608)1 3.18 3.18
2 0 0
3 1.26 1.26
4 3.22 3.22
5 3.22 3.22
U11(SSPT4105)1 1.02 1.02
2 4.98 4.98
3 4.98 4.98
4 4.98 4.98
5 3.63 3.63
6 3.63 3.63
7 0.2 0.2
8 0.2 0.2
(BOTTOM VIEW)
3-11Copyright © 2008 LG Electronics. Inc. All right reserved.Only for training and service purposes
LGE Internal Use Only
MAIN PARTMAIN ELECTRICAL TROUBLESHOOTING GUIDE
No power onby ADAPTOR
A
Replace ADAPTORNO
YES
1. POWER (DC-DC CONVERTER) CIRCUITA. POWER
Is ADAPTORout 9V
Replace F1NO
YES
YES
Is F1 OK.
Replace U4 ReplaceCON1 or CON2
No +3.3V No +5V No LCD powerNo +1.8V
YES
YES
NOReplace U4Is U4
3.3V OK?
No power onby BATTERY
A
Replace BATTERYNO
YES
IsBATTERY
OK?
YES
A
3-12 Copyright © 2008 LG Electronics. Inc. All right reserved.Only for training and service purposes
LGE Internal Use Only
Audio out abnormal
Check Audio jack & mode
YES
YES
Check +5V
YES
Check signals from MPEG
YES
Replace IC(U2)
MAIN ELECTRICAL TROUBLESHOOTING GUIDE
Audio in/speakerabnormal
Replace IC(U3)
ReplaceQ4 and Q6
Check Audio jack &mode S/W
NO
YES
YES
Is Q4and Q6 OK.
Replace SpeakersNO
YES
YES
Is speakers OK.Replace
B. AUDIO OUT ABNORMAL
D. AUDIO IN/SPEAKER ABNORMAL
Video in abnormal
Refer to LCD part
Replace (U1 IC)
Check Video jack& mode
NO
YES
YES
Is U1 OK.
CheckR250, R251, C112
YES
YES
E. VIDEO IN ABNORMAL
Video out abnormal
Check Video jack & mode
YES
YES
Check Video signals from MPEG
YES
Check IC(U1)
C. VIDEO OUT ABNORMAL
3-13Copyright © 2008 LG Electronics. Inc. All right reserved.Only for training and service purposes
LGE Internal Use Only
OPEN/CLOSE abnormal
Check SW1, SW2 switch
Refer to SERVO part.
YES
YES
Check IC(U9) Pin130 Check the connectin of MD.
YES
Refer to SERVO part.
YES
NO
MAIN ELECTRICAL TROUBLESHOOTING GUIDE
Picture abnormal
Check the disc.
YES
YES
Refer to SERVO part
YES
Check MPEG_CLKsignal of MPEG part
YES
Check MPEG (IC U9)
F. PICTURE ABNORMAL
H. OPEN/CLOSE ABNORMAL
Disc error
Check Disc
YES
YES
Refer to SERVO part
YES(If OK)
YES(If OK)
(If OK)
G. DISC ERROR
3-14 Copyright © 2008 LG Electronics. Inc. All right reserved.Only for training and service purposes
LGE Internal Use Only
MAIN ELECTRICAL TROUBLESHOOTING GUIDE
2. MPEG CIRCUIT
Power is on
END
YES YES
YES
OK
Check power & clock.Does Logo appearon the screen?
NO
Check CD/DVD DSPoutput signal.
Check MPEG Decoderinput signal.
NO
OK
Does theVideo of the DVD Disc
play properly?
Is MPEG datasignal normal?
NO
YES
Check CD/DVD DSPoutput signal.
Check MPEG Decoderinput signal.
NOIs errorsignal normal?
YES
OK
Check CD/DVD DSPoutput signal.
Check MPEG Decoderinput signal.
NODoes theVideo of the video CD
play properly?Is MPEG datasignal normal?
NO
Check clock signalNODoes
the audio sound outputnormally?
Does the audiosignal output from MPEG
decoder?
NO
Check clock signalNO
Is Clock normal?
YES
YES
YES
YES
OPTIONIf included VCD function.
3-15Copyright © 2008 LG Electronics. Inc. All right reserved.Only for training and service purposes
LGE Internal Use Only
MAIN ELECTRICAL TROUBLESHOOTING GUIDE
3. SERVO CIRCUIT
Check IC(U4)
Check connections betweenMT1389P and pick-up head.
NOFocus on OK.
Propersignals on A, B, C, D
of MT1389P.
NO
YES
Check the related circuiton MT1389P FEO sugnal.
NOProperFEO signal on
MT1389P.
YESYES
Check cable connectionon pick-up head.
Check the relatedcircuit on MT1389P
NOTrack on OK.
ProperFEO signal on
MT1389P.
NO
Disc is play?NO
YES
Check the TRSO connectionon MT1389P and motor dirver.
NOProperlyTRSO signal on
MT1389P.
YES
Check the tracking controlamp circuit on motor driver.
T+ & T-output properly.
YES
YES
B
YES
3-16 Copyright © 2008 LG Electronics. Inc. All right reserved.Only for training and service purposes
LGE Internal Use Only
Check Audio filter, amplify, mute circuit.
Check Aout_L related circuitAout_R
NONormalAudio output when
disc playback.
ProperAout_L, Aout_R signal
on MT1389P
NO
Check the related circuit ofAudio DAC.
NOYES
YES
Check communicationlines on MT1389P
NONormalIR. VFD & Front pannel
key functions.
Commu-nications between
IR.VFD Front pannel key & MT1389P & Front µ-com
is normally.
NO
NO
YES
Check the cable connectionon Front pannel.
TEST END
YES
B
YES
MAIN ELECTRICAL TROUBLESHOOTING GUIDE
3-17Copyright © 2008 LG Electronics. Inc. All right reserved.Only for training and service purposes
LGE Internal Use Only
MAIN ELECTRICAL TROUBLESHOOTING GUIDE
Is U15 OK?
No turn on Red LED Is 8.4V of J9 RED Pin.
YES
Replace IC(U15).
NO
Is L27 OK? Replace L27.
YES
NO
Is IC(U14) OK? Replace IC(U14).
YES
NO
Is Q29 OK? Replace Q29.
YES
NO
NO
4. CHARGING CIRCUIT
3-18 Copyright © 2008 LG Electronics. Inc. All right reserved.Only for training and service purposes
LGE Internal Use Only
WIRING CONNECTION DIAGRAMS
1. WIRING CONNECTION DIAGRAMS-1(MAIN PCB <---> LCD PCB)
LCD PCB
MAIN PCB
3-19Copyright © 2008 LG Electronics. Inc. All right reserved.Only for training and service purposes
LGE Internal Use Only
2. WIRING CONNECTION DIAGRAMS-2(MAIN PCB <---> USB PCB)
MAIN PCB
USB PCB
3-20 Copyright © 2008 LG Electronics. Inc. All right reserved.Only for training and service purposes
LGE Internal Use Only
3. WIRING CONNECTION DIAGRAMS-3(MAIN PCB <---> KEY PCB)
KEY PCB
MAIN PCB
3-21Copyright © 2008 LG Electronics. Inc. All right reserved.Only for training and service purposes
LGE Internal Use Only
BLOCK DIAGRAMS
1. OVERALL BLOCK DIAGRAM
SD
I
A-5
V
SL+
,S
L- AM
5898
NM
OT
OR
DR
IVE
R
ST
AN
DB
Y
PW
M
AD
_PR
P+
5VA
1.8V BA
T_O
UT
RE
D,
GR
EE
N
AO
UT
_L/R
AD
_K1,
AD
_K2
CH
_SC
S,
SC
LK,
SD
O
64M
Bit
SD
RA
M
MA[0..11], BA[0..1],CS#,CAS#,RAS#,WE#,DQM[0..1]DCLK,DCKE
8/16
/32M
Bit
FLA
SH
ME
MO
RY
AD[0..7]
A[0..21]PCE#,PRD#,PWR#
RE
MO
CO
NR
EC
EIV
ER
Pow
er,
Cha
rge
LED
3.3V
3.3V
OP
O
V1P
4,F
OS
O,T
RS
O,F
MS
O,D
MS
O,S
TB
Y
US
BP
,US
BM
LCD
PA
NE
L
DQ[0..15]
A_M
UT
E_S
W
US
B J
AC
K
A+
5V
XI,X
O27
MH
z
LDO
1,LD
O2,
IOA
,V20
M
DIS
C
SP
IND
LEM
OT
OR
DECK MECHANISM
PIC
KU
P
SLE
DM
OT
OR
M
F+
,F-,
T+
,T-
SP
+,
SP
-
A,B
,C,D
,E,F
, RF
O,M
DI1
/2
LIM
ITN
JM45
80M
A±
5V
PT
2303
A+
5VS
P_L
/R+
/-
SP
_L/R
-
OP
-,O
P+
TR
OP
EN
M5V
AS
PD
IF
CM
1117
VCOMO,CPH1/2/3,MOD,89P_R/G/B,STHL/R, STVL/R,OEH/V,LNR,UND,CKV,PWRCTL_LCD
AV
IN
/OU
T
SP
K
H/P
CO
AX
IAL
4KB
itE
EP
RO
M
3.3V
SCL
SDA
BATTERY
4053
DC
_IN
DC
-DC
BLO
CK
1
DC
-DC
BLO
CK
23.
3V
M5V
2F23
01P
A+
5V
LD_5
V
3904
TP
S60
400
A+
5V
SP
_ MU
TE
3.3V
/5V
AD
_T
AD
_U
P-
AD
_I
KE
Y
IR
GT
6319
5VA
1.8V
/3.3
V
VO
LUM
E
/M_R
ES
ET
CV
BS
FS
AV
330
CV
BS
_IN
A+
5V
VID
EO
_IO
_CT
L
MT
1389
PM
PE
G
/AV
_JA
CK
_IN
Sys
tem
& A
V P
art
3-22 Copyright © 2008 LG Electronics. Inc. All right reserved.Only for training and service purposes
LGE Internal Use Only
2. POWER BLOCK DIAGRAM
Bat
tery
Ch
arg
e C
ircu
itB
AT
Co
n
AC
/DC
Ad
apte
r
9V in
BA
TB
AT
ou
t
FE
TS
W (9
V(9
V i
n)C
ha
Ch
arg
e E
na
nab
leC
ha
Ch
arg
erg
e
Th
eT
he
rmi
rmis
ter
Div
ide
Div
ide
DC
D
C S
ensese
BA
TB
AT
Se
Sen
sn
se
DC
-DC
DC
-DC
DC
-DC
Reg
5VA
5VA
5V 3.3
3.3
V
1.8
1.8
V
S/W
S/W
DV
B 3
. 3
.3V3V
SW
(TU
/T
U/D
VD
)
D5V
Vo
ltag
e In
vert
er-5
V-5
V
Sta
Sta
nd
bn
db
y
Sta
Sta
nd
bn
db
y
Sta
nd
bn
db
y
LC
DP
anel
Vid
eoA
ud
io
Sys
tem
Ser
vo
5VA
5VA
5V 3.3
3.3
V
1.8
1.8
V
-5V
-5V
3.3
3.3
V
LC
DV
cc
7.5
7.5
V
15V
15V
-10
V
D5V
7.5
V
15V
15V
-10
-10
V
D5V
D5V 5V
A
S/W
DV
B 5V
SW
(S
W(T
U/
TU
/DV
DV
D)
D5V
D5V 5V5V
3.3
3.3
V
Ch
arg
eD
isch
arg
eG
T6
GT
631
931
AM
5898
NA
M58
98N
3-23Copyright © 2008 LG Electronics. Inc. All right reserved.Only for training and service purposes
LGE Internal Use Only
3. SERVO BLOCK DIAGRAM
U4
AM
5898
NM
oto
r D
rive
rv
DV
D :
A,B
,C,D
,RF
CD
: A
,B,C
,D,E
, F,R
F
PIC
KU
P
X5
01
U9
MT
K13
89P
P-D
VD
PL
AY
ER
ON
E C
HIP
FM
SO
,DM
SO
,FO
SO
,T
RS
O,S
TB
Y,V
1P
4
FO
+,
FO
-,T
R+
, TR
-
27M
Hz
X-T
AL
CD
LD
(LD
01)
,DV
DL
D(L
D0
2)
IOA
LIM
IT
AL
PC
MD
I1,M
DI2
Spi
Spi
ndl
edl
eM
oM
ote
r
SL-
,SL+
Ste
ppi
Ste
ppin
gngM
ote
r
OP
+,O
P-
OP
O
SP
-,S
P+
3-24 Copyright © 2008 LG Electronics. Inc. All right reserved.Only for training and service purposes
LGE Internal Use Only
4. SYSTEM BLOCK DIAGRAM
US
BP
,US
BM
CS
#,C
AS
#,R
AS
#W
E#,
DQ
M0,
DQ
M1
CH
_SC
S,
SC
LK
,S
DO
GT
6319
64M
Bit
SD
RA
M
US
B J
AC
K
DQ
0~D
Q15
MA
0~M
A11
,DB
A0/
1
DC
LK
,DC
KE
8/16
/32M
Bit
FL
AS
HM
EM
OR
Y
AD
0~A
D7
A0~
A19
,AA
20,A
A21
PC
E#,
PR
D#,
PW
R#
27M
Hz
A+
5V
SD
I
5VA
RE
MO
CO
NR
EC
EIV
ER
KE
Y1
LC
D M
OD
E,D
ISP
LA
Y,S
ET
UP
,ME
NU
UP
,DO
WN
,LE
FT
,RIG
HT
,LC
D-O
PE
N
Po
wer
,C
har
ge
LE
D
KE
Y2
AD
_K2
3.3V
3.3V
2^20
*8=
8M
bit
2^21
*8=
16M
bit
2^22
*8=
32M
bit
2^14
*2^
8*16
=64
Mb
it
1.8V
/3.3
V
MT
1389
PM
PE
G
PO
WE
R,C
OL
OR
/BR
IGH
T, M
OD
E, E
NT
ER
AD
_K1
IR
RE
D,
GR
EE
N
4KB
itE
EP
RO
M
3.3V
SD
A
SC
L
/M_R
ES
ET
Sys
tem
& A
V P
art
3-25Copyright © 2008 LG Electronics. Inc. All right reserved.Only for training and service purposes
LGE Internal Use Only
5. AV BLOCK DIAGRAM
SP
_R+
/R-
AO
UT
_L/R
2CH
DA
C
MT
1389
PM
PE
G
VID
EO
1.8V
/3.3
V
CV
BS
AU
DIO
PT
2303
SP
K
SP
K
A+
5VS
P_L
+/L
-
H/P
JA
CK
SP
_L-/
R-
A_M
UT
E_S
W
NJM
4580
MO
P-A
MP
A±±
5V
< A
V IN
/OU
T >
SP
_MU
TE
VO
LU
ME
Sys
tem
& A
V P
art
/AV
_JA
CK
_IN
FS
AV
330
A+
5V
CV
BS
_IN
VID
EO
_IO
_CT
L
VID
EO
AD
C
AV
OU
T P
AT
HA
V IN
PA
TH
3-26 Copyright © 2008 LG Electronics. Inc. All right reserved.Only for training and service purposes
LGE Internal Use Only
MEMO
3-27 3-28
CIRCUIT DIAGRAMS1. POWER CIRCUIT DIAGRAM
Monday, March 03, 2008LG
VER:4.0
100R-->1KR134
/M_RESET
AD_UAD_IAD_TAD_K1
IR
STANDBY
MSDIMSDOMCLK
VREF
AD_PRAD_K2
AD_TVREF
K2K1
5VA
AD_K1AD_K2
MCSCH_SCS MCLKSCLK
MSDISDO SDI MSDO
/M_RESETCH_SCS
K2
PWM
IR
SDI5VA
BAT_9V
SCLKSDO
AD_U
GND
AD_PR
P+
P+
AD_I
5V
MCU_MUTE
A_MUTE_SW
MCSPWM
MCU_MUTE
P+
STANDBY
P-
P+
5VA
GND 1,2,3,5,6
SDI 5
A_MUTE_SW 1,5IR 2,5
CH_SCS 5
BAT_9V 1,2,3
5VA 3
SDO 5
/M_RESET 5
K2 1,2
SCLK 5
5V 1,2,3MCU_MUTE 3
5V
5V
5V
5V
5V
5V 5V
5V
BAT_OUT
BAT_OUT
5VA
BAT_9VBAT_OUT
L43 NC
U15HT7150-1
23 1vi
nvo
ut
GN
D
R141 1K
Q32
39061
23
R56 51R
R149 51K
+ CE34
NC
U14GT6319
3
1112
14
54
199
25
2324
28
8
67
10
13
2122
20
2726
21
18171615
CMSDA
AD_BATUAD_CHG1
AD_K1
NC2CMCLK
VCCRST
MSDO
PIEMCLK
IR_DA
PR_CTL
MCSPWM
GND
AD_BATT
PRCTL2VREF
OSC
NC1MSCI
GRNRED
NC4NC3
AD_PRAD_K2
D11 SK342 1
C1120.1uF
R11410K
C60
104
R131
1K
Q343904
1
23
R112 2K
D12
SK
34
21
NTC1
10K
C58
0.1uF
R12310K
Q24SSPT0403
1
32
R124
1K
C630.1uF
F1
FUSE
R129 10K
R143
20K
C64
0.1uF
J10
2PIN/2MM
1
2
C72100pF
C68
0.1uF
D81N4148
1 2
J6
3PIN/1.25
21
3K2K1
GND
R196
NC
R113
10K
Q233904
1
23
R109
10K
R142100K
R138
39K
R1331K
R11710R
R93 20K
CE14100uF/10V
C65
0.1uF
R53
120K
C710.1uF
R132 9.53K 1%
T1
10MH
1 23 4
1 23 4
R1351K
C46
0.1uF
R9220K
C810.1uF
C110
0.1uF
R121
150K1%
D16 LL4148
C69
0.1uF
R136NC/4.7M
D10 SK342 1
R11810K
R137
10K 1%
D9 NC/SK342 1
IC1
KA431 1%
C75
0.1uF
R63
10K 1%
C57
0.1uF
R134 1K
R1152K
R144
0.1
R1/4
W
R58 1K
J9
3PIN/2.54MM
21
3
R64
10K 1%
Q29A4953
1
2
78
R1192K
Q303904
1
23
R126
51K1%
J5
DC_JACK
1
2
POWER
GND
R1471K
C660.1uF
QB1
9926
1 2 3 45678
C73100pF
R116
120K
R61 1K
C67
0.1uF
C61100pF
R122
*
R120
2K
R11010K
D13LED-G&R
R139
2K
R145
0.1
R1/4
W
D14
PG05GBUSC
U6S-8242AAD-M6TZGZ
3
5
4
2 6
1
VM VC
C
VC
CO VSS
DO
R140
1K
C45
0.1uF
R127
*
R11120K
C70
0.1uF
R125 3.6K
C111
0.1uF
C59104
+ CE35
100uF/25V
D15
PG05GBUSC
R1464.7K
+ CE36
220uF
/16V
C74100pF
L27 47uH
R91 5.1K
R130
20K
R128 10K
Q29B4953
3
4
5 6
Copyright © 2008 LG Electronics. Inc. All right reserved.Only for training and service purposes
LGE Internal Use Only
3-29 3-30
2. AV CIRCUIT DIAGRAM
AVMonday, March 03, 2008
L:AV OUTH:AV IN
H:AV INL:AV OUT
CVBS
OFF-PAGE CONNECTION
POWER I/F
MPEG I/F
LCD I/F
VER:3.0
AOUTL
CVBSCVBS_IN
VIDEO_IO_CTL
CVBS_OUT
CVBS_OUT
AV+5V
AOUT_L
AOUT_R
AV-5V
AMP+5V
AV-5V
AMP+5V
L_SPEAKER
AOUTL
A_MUTE
A_MUTE
R_SPEAKER
AOUTR
AOUTR
MUTE
A_MUTE
AV+5V
VIDEO_IO_CTL
SP_L-
SP_R-
SP_R-
SP_R+SP_L+
GND
HP-IN
AAR
A_MUTE
R_SPEAKERL_SPEAKER
AAR
A_MUTE
SP_R-
A_MUTE
ASPDIF
SP_L-
5VA
A+5V
A-5V
CVBS
AOUT_LAOUT_RASPDIFA_MUTE_SW
VIDEO_IO_CTL
SP_L-SP_L+SP_R-SP_R+
CVBS_IN
SP_L-
A_MUTE
3.3V
GND
A_MUTE_SW
SP_MUTE
HP-IN
MCU_MUTE
5V
BAT_9V
MCU_MUTE
AMP+5V
AV-5V
SP_MUTE
AAL
AAL
5VA 3,4
A+5V 3,5
A-5V 3
CVBS 5
AOUT_L 5AOUT_R 5ASPDIF 5A_MUTE_SW 4,5
GND 2,3,4,5,6
VIDEO_IO_CTL 5
CVBS_IN 5
SP_L- 2SP_L+ 2SP_R- 2SP_R+ 2
3.3V 2,3,5,6
5V 3,4
BAT_9V 2,3,4
MCU_MUTE 4,5
SP_MUTE 3
A+5VA+5V
A+5V
A+5V
A+5V
AV+5V
A-5V
3.3V
BAT_9V
5V5V
A+5V
Q17 NC/3906
1
2 3
+
CE12
10uF/16V
C19680pF
R14
10K
Q2
3904
1
23
+ CE9
NC
R21
NC
R20 10K
R57NC/1K
R22 1.2K
Q19
NC/3906
1
2 3
+ CE3
10uF/16V
R49
4.7K
C1
100pF
R160 1K
R52 100R
+ CE17
NC/100uF/16V
D1
BAT54S
3
1 2
C20 100pF
+
CE6
10uF/16V
C14
680PF
R12100K
R62
NC /10K
C263300pF
R8100K
R2747K
R39 100R
Q4
3904
1
23
+ CE10
22uF/16V
R59
NC/0R
Q7 3906
1
2 3
C2356pF
C221000pF
R55
4.7K
R95
4.7K
R25
NC/4.7K
C10 100pF
+
CE15
100uF/10V
R96 1K
R6
100K
R24 27K
R29
10K
R37 100R
L9 600ohmFB
R1
4.7K
+
CE8
10uF/16V
R60
NC/47K
R31 10K
R26 10K
R54
1KQ33
3904
1
23
Q13
3904
1
23
R34
4.7K
R41
1K
R16
47K
+
- U2B
NJM4580M5
67
84
C120.1uF
R7
100R
C15NC
R32 100R
C18680pF 3300pf
24135
J1
AV_JACK
3142
5
Q5NC/2N3906
1
23
R23
0R
R18
10K
R38 100R
R36 100R
R35
1K
Q9
3904
1
23
C7ESD(15pF)
R9
0R
PH1
JACK4
11
910
86 12
345
7
R17 100R
R30
5.1K +
CE13
10uF/16V
R19
4.7K
R15
5.1K
C110.1uF
+ CE7NC/10uF/16V
R42
0R
C25
3300pF
L3 FB
L7 600ohmFB
R3
68R1%
C13
0.1uF
+
CE16
100uF/10V
C60.1UF
PH2
JACK4
11
910
86 12
345
7
+
CE1 10uF/16V
Q3
3904
1
23
R2
10R(NC)
C161000pF
Q11
3904
1
23
D2
BAT54S(NC)
3
1 2
R46
4.7K
R28
10K
R13 10K
C21NC
R65
NC/10K
L1 1.8uH
R43
10K
L2 FB
C283300pF
C27
3300pF
C5100pF
L5 FB 120 ohm
L4 FB 120 ohm
C8
0.1uF
Q10
3904
1
23
U3
PT2303
12345678
161514131211109
SHUTGND+OUT1VDD-OUT1-IN1GND+IN1
HP-INGND
+OUT2VDD
-OUT2-IN2
VREF+IN2
C2ESD(15pF)
L8 600ohmFB
R48
10K
+
CE11
10uF/16V
L6 600ohmFB
C4100pF
R51
220R
Q6
3904
1
23
Q1
3904
1
23
R45
4.7K
C356pF
U1
FSAV330
12345678
16151413121110
9
S1B11B2
1A2B12B2
2AGND
VCCOE4B14B24A3B13B23A
+
- U2A
NJM4580M3
21
84
+CE21
NC/10uF/16V
Q14
3904
1
23
R33
4.7K
R10 27K
R5 150R
D3
NC/3.3V
12
+ CE4
220UF/6.3V
+
CE5
10uF/16V
C1756pF
R4
4.7K
+
CE2 10uF/16V
R40
0R
C9330pF
R11
10R(NC)
VR1
VOLUME
12345
12345
6
7
Q83906
1
23
C24680pF 3300pf
2
3
J2
COAXIAL_JACK
3
1
2
R44
10K
R47
10K
R50 100R
Copyright © 2008 LG Electronics. Inc. All right reserved.Only for training and service purposes
LGE Internal Use Only
3-31 3-32
3. CONNECTION CIRCUIT DIAGRAM
CONNECTIONMonday, March 03, 2008
OFF-PAGE CONNECTION
PANEL T-CON I/F
SP_L-
SP_L+
SP_R-
SP_R+GNDSTVR
STVL
CKVUND
OEV
LNROEH
STHLSTHR
CPH1VCOMO
BAT_9VPWRCTL_LCD
89P_R89P_G89P_B
K2
3.3V
PWRCTL_LCD
VCOMOOEH
LNROEVUNDCKVSTVLSTVR
5VIR3.3V3.3V
SP_L+SP_L-
SP_R+SP_R-
STHLSTHRCPH
89P_R89P_B89P_G
CPH1
BL_POWER
K2
STHL STHR CPH STVR CKV STVL OEV OEH VCOMO
89P_R 89P_B 89P_G
5VIR
LNR UND
LED_CTR
LED_CTR
BAT_9V
5VA
5VA
3.3V 1,3,5,6
SP_L- 1
SP_L+ 1
SP_R- 1
SP_R+ 1
STVR 5
STVL 5
CKV 5UND 5
OEV 5
LNR 5OEH 5
STHL 5STHR 5
CPH1 5VCOMO 5
BAT_9V 1,3,4PWRCTL_LCD 5
89P_R 589P_G 589P_B 5
GND 1,3,4,5,6
K2 1,4,5
5V 1,2,3IR 4,5
LED_CTR 25VA 4,5
C47100PF
C124100PF
C122220PF
C128100PF
CON1
20pin/0.8mm
1234567891011121314151617181920
C123100PF
C127100PF
CON2
18pin/0.8mm
123456789101112131415161718
C54100PF
C121100PF
C126100PF
L10300 Ohm FB
L15100Ohm FB
C62100PF
C52100PF
C125100PF
C129100PF
C114100PF
L16 NC
Copyright © 2008 LG Electronics. Inc. All right reserved.Only for training and service purposes
LGE Internal Use Only
3-33 3-34
4. DC-DC CIRCUIT DIAGRAM
DC-DCMonday, March 03, 2008
SG
D
1 3
2
CSM2307
SERVO I/FSERVO I/F
OFF-PAGE CONNECTION
GND
DM-520 SPINDLE MOTOR
1 SL+
2 SL-
DM-520 SLED MOTOR
1234
SP-
LIMITSP+
C
VCC
PD_CD
T-
NC
20
23
17
1200X
F+
VR-DVD
3
NC
19
2
1
1200X
15
B/b
F-
T+
18
B
E16
GND-PD
CD/DVD SW
C/c4
GND-LD
D/d
HFM
DVD-LD
13
22
1
1011
21
24
3
C
F
RF
MD
7
E2SB1132
Very Important toreduce Noise
12
Vcc
8
Vc(Vref)
2
A/a
VR-CD
6
9
5
C
14
CD-LD
3
LD_CDVR
20
18
PD_DVD
16
DF
12
24
1
8
F-
GND
HITACHI HOP1200
9B
21
5
10
VR
LD_DVD15
7
T+23
A
13
E
22
VCC
T-
19
VsGND
F+
VRF11
GND
GND
17
2
6
14
4
3
2
TPS60400
4
51
F+F-
FOSODMSO
SP+SP-
T+
TRSOFMSO
SL-SL+
T-
V1P4STBY
CT1
5VA
A-5V
A+5V
3.3V
BAT_9V
V20
V1P4
STBY
FOSO
TRSO
DMSO
FMSO
OP+
OP-
OPO
LIMIT
TROPEN
LDO2_TO_USB
IOA
LDO1
D
A
B
C
MDI1
E
F
RFO
TROPEN
CT1
SP-
LIMIT
OPO
SP+
OP-
SL+
SL-
OP+
GND
GND
V1P4
T-
MDI1
IOA
T+
GND
LD-CD
F-
RFO
C
MDI1
LD-DVD
V20GND
D
AVCC1
VR_DVD
AVCC1
LDO1
E
A
F
VR_CD
B
F+
LDO2_TO_USB
IOA
5VA
5VA 4
A-5V 1
A+5V 1,5
3.3V 1,2,5,6
GND 1,2,4,5,6
BAT_9V 1,2,4
V20 5
V1P4 5
STBY 5
TRSO 5
DMSO 5
FOSO 5
FMSO 5
OP+ 5
OP- 5
OPO 5
LIMIT 5
TROPEN 5
LDO1 5
LDO2_TO_USB 5
IOA 5
A 5
B 5
C 5
D 5
E 5
F 5
RFO 5
MDI1 5
GND 1,2,4,5,6
5VA 4,5
BAT_9V
BAT_9V
3.3V
BAT_9V M5V
M5V
BAT_9V
BAT_9V
BAT_9V
5VA
M5V
S3.3V
M5V
S3.3V
S3.3V
VCC
VCC
VCC
M5V
A+5V
A+5V A-5V
S3.3VDV33
5VA
S3.3V
L26
10uH
C562200pF
R15251K
CE2247uF/6.3V
R154 10k
R88 0R
+ CE28
10uF/16V
L18 FB
D6
PG05GBUSC
+ CE18
220uF/10V
R158 100k
R67 10K
TP7
R69 10K
C53
0.1uF/NC
C36
0.1uF
R103
10K/NC
R98 NC
R1536.8K
L13 47uH
L11 FB(1206)
Q282SB1132
1
32
R107
10K
CB5
102
J3
2PIN2
1
2
1
2
R84 0.1R/1%
R80 10KR79 3.6K1%
C51
1uF
R83 15R CE2347uF/6.3V
C55 2200pF
C49
0.1uF
R1081R
C42
0.1uF
C31 68pF
R157
0
R86 0R
L25
10uH
CB2
0.1uF
+ CE31
47uF/6.3V
R81 680K
L24 10uH
TOP
con3
HEADER 24 SMD0.5 TOP
123456789101112131415161718192021222324
L20 FB
Q21
CSM23071
32
R77 15R
R99 4.7
Q312N3904
1
32
L14 FB(1206)C35
1000pF
TP6
C370.1uF
R105
680K
Q123906
1
23
R66 20K
R71 2K1%
U5
TPS60400
4
1
53
2
GN
D
OUT
CF
LY
+
CF
LY
-
IN
R106NC
J4
4PIN2
4321
4321
R78 100R
C38
0.1uF/NC
D5
SS14
21
R68 20K
CB49 102
Q273906/NC
1
23
Q20
CSM23071
32
L21 FB
Q263906/NC
1
23
R156
0
C34
0.1uF
C400.1uF
C32 68pF
R85
750R
+ CE27100uF/10v
C30 0.1uF
R76 680K
R159 10k
R155 100k
R82 0.1R/1%
L23 10uH
+CE29
10uF/16V
R100 4.7
R102
150K
R104
10K/NC
C480.1uF
L22FB
R73
750R
CE2547uF/6.3V
Q15
3904
1
23
U4
AM5898N
3
1112
14
54
19
9
1615
25
2324
28
31
8
67
32
10
132122
20
2726
2930
17
21
18
3334
3635
COMP2
VINFCVINSL+
VOSL+
IPK2SW2
GND
VOFC-
GNDVOSL-
PGND
VINTKVCC2
IPK1
CT1
VOFC+
PVCC1PVCC2
EN1
VCC1
GNDVOSP-VINSP
VOSP+
PGND2PGND1
SW1COMP1
VOTK+
CT2EN2
VOTK-
MUTEBAIS
GNDGND
R94 10K
Q252SB1132
1
32
C33
0.1uF
R72 0R
C29
1000pF
D4
SS14
21
R74 10K
R101
150K
C390.1uF
Q182SK3018
1
32
R87 10K
CE32100uF/10V/NC
R70 1.2K1%
CB1
0.1uF
+ CE20
220uF/10V
+ CE30220uF/6.3V
L12 47uH
TP5
R97
47K
R15127K
Q162SK3018
1
32
C410.1uF
R75 1.2K1%
CE2647uF/6.3V
CB48102
CE33100uF/10V/NC
C500.1uF
+ CE19
100uF/25V
BAT_9V
Copyright © 2008 LG Electronics. Inc. All right reserved.Only for training and service purposes
LGE Internal Use Only
3-35 3-36
5. MPEG CIRCUIT DIAGRAM
Monday, March 03, 20081389P MPEG
VIDEO IN
Crystal
Chip Decopling CAP.
IIC I/F
SERVO I/F
PANEL I/F
AV I/F
POWER I/F
CHARGE & FM-TX I/F
FLASH I/F
MEMORY I/F
1 2 3
4
CM1117SCM223
VER:4.1 MODIFY GPIO
A
CB
VID
EO
_IO
_CT
L
AD
1
RF
VD
D3
RAS#
A20
AD
5
A15
DCKEDCLK
AD
7
MA3
A16
A6
A14
AD
6
CS#
DQ
7
DQ
14
A4
A13
A8
PR
D#
A9
CAS#
BA0
MA7
PC
E#
A19A18
A7
A5
AD
3
A10
DQM1
MA2
A11
BA1A2MA10
A1 AD
4
WE#
MA0MA1
PW
R#
A17
AD
0
A12
A0AD
2
A3
SD
O
TX
DR
XD
SD
AS
CL
DQ
M0
DQ
5D
Q6
DQ
4D
Q3
DQ
2D
Q1
DQ
0D
Q15
DQ
10
DQ
12
DQ8
DQ
9
MA8
MA11MA9
MA4
CKV
STVL
DQ
11
DACVDD3CVBS
89P_G
89P_B
LED
_CT
R
CV
BS
_IN
P
V1P
4
RF
VD
D3
RF
VD
D3
PLL
VD
D3
AV
DD
18_V
PLL
AD
BC
SUBASUBBEF
V1P4
V2P8V20
OP-OP+
FMODMO
OPO
TROFOO
USBP
FG
DA
CV
DD
3
JIT
FO
XO
JIT
FN
RF
V18
AD
AC
VD
D
AO
UT
_L
AO
UT
_R
AP
LLV
DD
3
AS
PD
IF
VC
OM
O
DACVDD3
89P_R89P_R
XI
PLLVDD3
USBM
DQ
13
MA6MA5
OEH
OEV
STHL
CPH1
JITFNJITFO
D
TROFOO
DMSODMSODMSODMSODMSODMSOFMODMO
FMSOFMSOFMSOFMSO
RXDTxD
RFVDD3
V1P4
FOSOFOSOFOSOFOSOFOSOFOSOTRSOTRSOTRSOTRSOTRSOTRSO
TROPEN
RFV33
89P_3V3
LDO2LDO1
LIMIT
ST
BY
STVR
UND
LNR
STHR
XO XI
APLLVDD3
DACVDD3
ADACVDD
CVBS_INP CVBS_IN
VCOMOCPH1
STHRSTHL
OEHOEVSTVL
UNDLNR
CKV
CVBS
89P_R
PWRCTL_LCD89P_B
AOUT_LCVBS_IN
89P_G
ASPDIFAOUT_R
A_MUTE_SW
VIDEO_IO_CTL
A+5V3.3V
/M_RESETCH_SCS
SDISDOSCLK
PCE#
PRD#PWR#
AD[0..7]
CAS#DCKE
WE#CS#
RAS#
A[0..20]
MA[0..11]
BA[0..1]
DQM[0..1]
DQ[0..15]
SDASCL
V20V1P4
OPOOP-OP+LIMITIOALDO1
LDO2_TO_USBA
CB
D
RFOMDI1
STBYTRSODMSO
FMSOFOSO
TROPEN
V2P8 V20 V1P4
RFV18
AVDD18_VPLL
IOAFG
STVR
DCLK
F
RFO
E
LDO2_TO_USBLDO2
TROPENUSBM
A+5VUSBP
GND
IR
IR/M
_RE
SE
T
5VA
SD
IS
CLK
CH
_SC
S
A_M
UT
E_S
W
MDI1
PW
RC
TL_
LCD
SY
_MU
TE
LED_CTR
SP_MUTE
SP_MUTE
AD[0..7] 6
A[0..20] 6
MA[0..11] 6
BA[0..1] 6
DQM[0..1] 6
DQ[0..15] 6
VCOMO 2CPH1 2
STHL 2STHR 2OEH 2OEV 2STVL 2
LNR 2STVR 2
UND 2CKV 289P_R 289P_G 289P_B 2PWRCTL_LCD 2
CVBS 1CVBS_IN 1AOUT_L 1AOUT_R 1ASPDIF 1A_MUTE_SW 1,4
VIDEO_IO_CTL 1
GND 1,2,3,4,6
A+5V 1,33.3V 1,2,3,6
/M_RESET 4CH_SCS 4
SCLK 4SDO 4SDI 4
PRD# 6PWR# 6PCE# 6
DCLK 6DCKE 6CAS# 6RAS# 6WE# 6CS# 6
SCL 6SDA 6
V1P4 3V20 3OPO 3OP- 3OP+ 3LIMIT 3
IOA 3LDO1 3LDO2_TO_USB 3A 3B 3C 3D 3E 3F 3RFO 3MDI1 3
STBY 3TRSO 3DMSO 3FOSO 3FMSO 3TROPEN 3
GND 1,2,3,4,6
IR 2,4
5VA 3
LED_CTR 2
SP_MUTE 3
89P_3V3
1.8V
1.8V
89P_3V3
1.8V
1.8V
89P
_3V
3
1.8V
89P_3V3
89P_3V3
89P_3V3
89P_3V3
1.8v
89P_3V3
RFV33
89P_3V3
89P_3V3
1.8V
3.3V
3.3V
1.8V
3.3V1.8V
Y1
27MHz+ CE50
100uF/6.3v
C1014.7uF
C76
0.01uF
TP29
TP26
CB22
0.1uF
+ CE44
47uF/6.3v
CB31
0.1uF
R180
2.2K
CB21
0.1uF
R174 0R
C84
0.1u
F
L34 FB
C102
0.1uF
+CE48
100uF/10V
R173
560R1%
C107
0.015uF
L40 FB
TP17
TP30
L37 FB
CB90.1uF
TP12
CB25
0.1uF
CB
80.
1uF
TP33
C89
0.04
7uF
TP18
R182 47K
R166 750k
C1031uF
C10933pF
C90
0.04
7uF
C96 1uF
CB130.1uF
+ CE37
100uF/6.3v
TP32
CB26
0.1uF
R176 2K
R185 100K
+ CE43
47uF/6.3v
R177 0R
R16
910
0k
TP23
CB180.1uF
TP22
L39 FB
+ CE49
100uF/6.3v
R17
115
k
TP19
C93 1uF
+ CE45
10uF/10V
CB160.1uF
L35 FB
CB
100.
1uF
L33
FB
R179 5.1K
CB32
0.1uF
CB20
0.1uF
C78 1000pF
C10833pF
C83
4.7u
F
CB3
330pF
C92 1uF
CB360.1uF
C80
20pF
CB23
0.1uF
CB34
0.1uF
TP31
TP20
CB24
0.1uF
CB15
0.1uF
L28 FB
R184 10K
CB120.1uF
+ CE42
47uF/6.3v
R183 15K
R17
210
0k
U10
CM1117-1.8V
3
1
2
4
IN
GN
D OUT
TAB
R164 0R
TP25
+CE38
10uF/16v
CB27
0.1uF
L32FB
TP14
TP13
L36 FB
CB110.1uF
R165 18R
C94 1uF
C77
2200pF
CB17
0.1uF
CB6
0.1uF
C106
0.01uF
C91
0.1u
F
C87
0 .1u
F
CB30
0.1uF
C99
0.1uF
TP21
L31 FB
+
CE
4110
uF/1
0V
R148470R
C98
0.1uF
C105
330pF
CB
70.
1uF
CB370.1uF
C85
4.7u
F
R167 6.8R
R168
56R
CB140.1uF
C100
4.7uF
TP15
C95 1uF
R181 47K
C97 120pF/NC
C104
330pF
CB28
0.1uF
CB40.1uF
+CE46
10uF/10V
C79
0.047uF
+
CE
3910
0uF
/6.3
v
CB33
0.1uF
C113
3300pF
L29 10uH
TP11
TP28
J7
7*1.25mm
321
4567
321
4567
C86
1500
pF
L30 10uH
L38 FB
C82
1000
pF
TP16
+
CE
4022
0uF
/6.3
V
CB19
0.1uF
CB35
0.1uF
C88
0.03
3uF
J8
4PIN/2
1234
CB29
0.1uF
Pin Assignment v1.0
MT1389P
U9
MT1389P
2
250
345
1
252
253
6789
1011121314151617181920212223
256
2827
3029
3231
43
2625
33343536
4241
45
3940
46
3837
59
75747271706968
52
91
6263
8786
64
65 8483828173 93
53545556
80
5758
67 9285
6061
76 78 907966 77 94 95 96 97 98 99 100
101
102
103
104
105
116
106
107
244
245
108
109
110
111
112
122
113
114
115
117
118
120
119
121
123
124
125
126
128
127
129
192191190189188187186185184183182181180179178177176175174173172171170169
167168
166165164163162161160159158
156157
155154153152151150
148149
147146145144143
141142
140139138137136
134135
133132131130
249
255
24
254
231
230
238
237
248
247
236
251
246
243
241
242
240
239
234
235
232
224
225
222
221
220
219
226
218
217
215
213
214
204
211
210
209
208
212
207
206
205
203
202
201
200
199
198
197
196
195
194
193
233
44
4748495051
88 89
216
223
228
229
227
DVDA
CR
TP
LP
DVDBDVDCDVDD
AGND
OS
PO
SN
DVDRFIPMAMBMCMDSASBSC / TNISD / TPIMDI1MDI2LDO2LDO1SVDD3CSO/RFOPRFLVL / RFONSGNDV2REFO
AV
DD
3
TEZISLVTEO
OP_INNOP_OUT
DMOOP_INP
VSS33_USB
FEOVREFO
FMOTROPENPWMPWMOUT1 / V_ADIN0TRO
VDD33_USBUSB_DM
VDD18_USB
AVDD33_DMPLLUSB_DP
VSS18_USB
AGND33_DMPLLFOO
IOA5
IOA
20H
IGH
A1
HIG
HA
3H
IGH
A4
HIG
HA
5H
IGH
A6
HIG
HA
7
DVSS33
A17
HIGHA0IOA18
IOA
21 /
GP
IO17
AD
6
IOA19
DV
DD
33
AD
4A
D3
AD
2D
VS
S18
HIG
HA
2
DV
DD
18
DVSS18IOA22 / GPIO18DVDD18IOA2
AD
1
IOA3IOA4
A16
IOA
0
AD
5
IOA6IOA7
IOC
S#
IOO
E#
DV
SS
33
AD
0
IOW
R#
IOA
1
UW
R#
UR
D#
DV
DD
33U
P1_
2 / G
PIO
19U
P1_
3 / V
SC
KU
P1_
4 / V
ST
BU
P1_
5 / V
SD
AU
P1_
6 / S
CL
UP
1_7
/ SD
AU
P3_
0U
P3_
1U
P3_
4 / R
XD
RD
4
UP
3_5
/ TX
DIC
E
AD
CV
DD
3A
DC
VS
S
PR
ST
#IR G
PIO
22 /
SD
_DA
TA
0 / I
NT
0#D
QM
0G
PIO
21 /
SD
_CLK
RD
15
RD
7R
D6
RD
5
RD
3D
VD
D33
RD
1R
D2
RD
0
RD
14R
D13
RD
12R
D11
RD
9R
D10
RD8
DACVSSCCVBS(Y)
DACVDDBDACVSSBDACVDDA
GDACVSSA
BR
HCKHSTRHSTLHOE
LRDVSS18
VOEUD
VCKDVDD18
VSTUVSTD
GPIO100DVDD33GPIO101
GPIO103GPIO102
SD_D3SD_D2SD_D1MS_D3MS_D2MS_D1
DVDD18MS_CLK
MS_BS
DVDD33MS_D0
RA4RA5RA6RA7RA8RA9
DVSS33RA11
CKERCLK
DVDD33RA3RA2
RA1DVDD18
RA0RA10
BA1BA0
RCS#
CAS#RAS#
RWE#DQM1
DVDD33GPIO20 / SD_CMD
HR
FZ
C
IRE
F
V20
RF
GC
AD
AC
VD
D1
AD
AC
VD
D2
PLL
VS
SJI
TF
N
RF
RP
AC
RF
RP
DC
JIT
FO
RF
GN
D
RF
VD
D3
LPF
OP
LPF
IPLP
FIN
LPF
ON
PLL
VD
D3
XT
ALO
XT
ALI
RF
GN
D18
AP
LLV
SS
AD
AC
VS
S2
AP
LLV
DD
AV
DD
18_V
PLL
VP
LL_T
ST
AG
ND
18_V
PLL
AD
AC
VS
S1
VF
E_T
ST
P /
AU
DIO
_IN
1V
FE
_TS
TN
/ A
UD
IO_I
N2
CV
BS
_IN
P
CV
BS
_IN
N /
BA
TT
ER
YA
VD
D33
_VF
E
GP
IO10
(A
SD
AT
A3)
AG
ND
_AD
CD
VD
D33
_AD
CD
GN
D_A
DC
SP
DIF
/ G
PIO
23
AV
DD
33_A
DC
GG
PIO
12 (
MC
DA
TA
)G
PIO
11 (
AS
DA
TA
4)D
VD
D18
GP
IO9
(AC
LK)
GP
IO8
(AB
CK
)G
PIO
7 (A
LRC
K)
DV
DD
33G
PIO
6 (A
SD
AT
A2)
GP
IO5
(AS
DA
TA
1)G
PIO
4 (A
SD
AT
A0)
VC
OM
/ G
PIO
3D
AC
VD
DC
VR
EF
FS
RF
VD
D18
PAD_VRT
USB_XTALO / GPIO15USB_XTALI / GPIO14DVDD33DVDD18FG / GPIO16
ALE
AD
7
AG
ND
_VF
E
AP
LLC
AP
AV
CM
AL
/ SD
AT
A2
/ GP
IO1
AR
/ S
DA
TA
0 / G
PIO
0
TP27
Copyright © 2008 LG Electronics. Inc. All right reserved.Only for training and service purposes
LGE Internal Use Only
3-37 3-38
6. SDRAM, FLASH & EEPROM CIRCUIT DIAGRAM
SDRAM & FLASH & EEPROMFriday, January 18, 2008
NORMAL:16MBit
DRAM I/F
FLASH I/F
IIC
POWER I/F
SDRAM
1.HYNIX :HY57V641620ETP-7-C2.3.
FLASH Memory
-Normal model(16.MBit)1.KH :KH29LV160CBTC-70G
2.3.
-Game model (32MBit)1.KH :KH29LV320CBTC-70G2.
3.
GAME :32Mit
OFF-PAGE CONNECTION
VER:4.0R191 33R--->120R
A9
A3AD3
A1
A19
A4
AD6
AD1
A17A16
A13A14
AD0A2
A6
A8
A18
AD7A7
AD5
A12
A15
A10
AD2
AD4
A11
A5
A0
DBA1
DQ8
DQ14
MA11
DRAS#
MA2
DQ15
MA5
DQ10
MA4
DQ13
MA8
DBA0
DQM1
DCS#
DQ9
SDCLK
MA9
DQ11
MA3
MA6
DQM0
MA7
MA0
DCAS#DWE#
MA10
SDCKE
DQ12
MA1
PCE#PRD#PWR#
AA20
DQ2
DQ5
DQ1
DQ6
DQ4DQ3
DQ0
DQ7
SCLSDA
WE#CS#
PCE#PRD#
DCLK
PWR#
DCKECAS#RAS#
AD[0..7]A[0..20]
3.3VA20AA20
BA0
DWE#
CS#
DCKE
DCAS#RAS#
WE#
SDCLK
DBA1
CAS#
DCS#
SDCKE
DBA0
DCLK
DRAS#
BA1
SCL
DQM[0..1]
MA[0..11]
BA[0..1]
DQ[0..15]
SDA
GND
WE# 5CS# 5
DCLK 5DCKE 5CAS# 5RAS# 5
A[0..20] 5
SDA 5
AD[0..7] 5
PWR# 5PRD# 5PCE# 5
3.3V 1,2,3,5
GND 1,2,3,4,5
DQM[0..1] 5
MA[0..11] 5
BA[0..1] 5
DQ[0..15] 5
SCL 5
GND 1,2,3,4,5
3.3V
SD33
SD33
DV33
DV33
DV33
DV33
SD33
U11
HY57V641620ETP-7-C
1
24
12
57
9
810
46
1113
15
16171819
3522
23242526
14
41
293031323334
36
3738
39
40
43
4244
52
4547
49
48505153
54
2021
3
6
27
28
VCC
DQ0DQ1
VSSQ
DQ2DQ3
VCCQ
DQ4DQ5
VSSQ
DQ6DQ7
DQML
WECASRASCS
A11A10/AP
A0A1A2A3
VCC
VSS
A4A5A6A7A8A9
NC
CKECLK
DQMH
NC
VCCQ
DQ8DQ9
VSSQ
DQ10DQ11
VCCQ
DQ12DQ13DQ14DQ15
VSS
BA0/A13BA1/A12
VCCQ
VSSQ
VCC
VSS
R189 33
CB41
0.1uF
R190 33
R195
1k
L41 FB
CB40
0.1uF
CB43
0.1uF
U12
KH29LV160BTC-70G
25242322212019188
10
28
4716
29313335
7
26
384042443032
14
3639414345
37
2711
9
34
46
6
45
321
4817
12
A0A1A2A3A4A5A6A7A8
A20
OE
BYTEA18
D0D1D2D3
A9
CE
D4D5D6D7D8D9
WP/ACC
D11D12D13D14D15
VCC
GNDWE
A19
D10
GND
A10
A12A11
A13A14A15A16A17
RESET
R186 0
+ CE52
47uF/10v
R191 33
R192 0
U13
24C02SOP8
1234 5
678A0
A1A2GND SDA
SCLWP
VCC
CB38
0.1uF
R193
10k
CB44
0.1uF
RN1
33x4
1 23 45 67 8
CB45
0.1uF
CB42
0.1uF
R188 33
CB39
0.1uF
CB47
0.1uF
CB46
0.1uF
+ CE51
100uF/6.3v
R194
1k
Copyright © 2008 LG Electronics. Inc. All right reserved.Only for training and service purposes
LGE Internal Use Only
3-39 3-40Copyright © 2008 LG Electronics. Inc. All right reserved.Only for training and service purposes
LGE Internal Use Only
CIRCUIT VOLTAGE CHARTMODE
PIN NO.STOP PLAY
CE3(+) 5.11 5.11(-) 0 0
CE4(+) 5.11 5.11(-) 0 0
CE6(+) 0 0(-) 0.01 0.01
CE10(+) 2.44 2.44(-) 0 0
CE13(+) 5.11 5.11(-) 0 0
CE13(+) 0 0(-) 0.02 0.02
CE14(+) 4.96 4.96(-) 0 0
CE15(+) 4.25 4.25(-) 0 0
CE16(+) 4.25 4.25(-) 0 0
CE18(+) 3.35 3.35(-) 0 0
CE19(+) 8.57 8.57(-) 0 0
CE20(+) 5.11 5.11(-) 0 0
CE22(+) 3.31 3.31(-) 0 0
CE23(+) 5.11 5.11(-) 0 0
CE24(+) 3.31 3.31(-) 0 0
CE26(+) 5.11 5.11(-) 0 0
CE27(+) 5.11 5.11(-) 0 0
CE28(+) 5.11 5.11(-) 0 0
CE29(+) 0 0(-) -4.89 -4.89
CE30(+) 3.31 3.31(-) 3.31 3.31
MODEPIN NO.
STOP PLAY
CE31(+) 3.31 3.31(-) 3.29 3.29
CE32(+) 3.31 3.31(-) 0 0
CE33(+) 3.31 3.31(-) 0 0
CE34(+) 8.99 8.99(-) 0 0
CE35(+) 8.95 8.95(-) 0 0
CE36(+) 7.44 7.44(-) 0 0
CE37(+) 3.25 3.25(-) 0 0
CE39(+) 3.31 3.31(-) 0 0
CE40(+) 3.32 3.32(-) 0 0
CE42(+) 2.75 2.75(-) 0 0
CE43(+) 1.99 1.99(-) 0 0
CE44(+) 0.38 0.38(-) 0 0
CE48(+) 3.31 3.31(-) 0 0
CE49(+) 1.79 1.79(-) 0 0
CE50(+) 3.33 3.33(-) 0 0
CE51(+) 3.31 3.31(-) 0 0
CE52(+) 3.31 3.31(-) 0 0
QB1(9926)1 0 02 0.06 0.063 0 0.014 0.05 0.065 0 06 0 07 0 0.018 0 0
MODEPIN NO.
STOP PLAY
Q1Base -0.43 -0.43
Emitter 0 0Collector 0 0
Q2Base -0.35 -0.35
Emitter 0 0Collector 0 0
Q3Base 0.58 0.58
Emitter 0 0Collector 0 0
Q4Base 0 0
Emitter 0 0Collector 0 0
Q6Base 0 0
Emitter 0 0Collector 0 0
Q7Base 4.43 4.43
Emitter 5.11 5.11Collector 5.02 5.02
Q8Base 4.96 4.96
Emitter 4.96 4.96Collector -1.90 -1.90
Q9Base -2.06 -2.06
Emitter 0 0Collector 0 0
Q10Base 0.69 0.69
Emitter 0 0Collector 0.03 0.03
Q11Base 0 0
Emitter 0 0Collector 0 0
Q12Base 5.61 5.61
Emitter 0 0Collector 5.11 5.11
Q13Base 0 0
Emitter 0 0Collector 0.69 0.69
Q14Base -1.33 -1.33
Emitter 0 0Collector 0 0
Q15Base 0 0
Emitter 0 0Collector 0 0
Q23Base 0.65 0.65
Emitter 0 0Collector 0.02 0.02
MODEPIN NO.
STOP PLAY
Q25Base 3.31 2.55
Emitter 3.31 3.31Collector 0 2.17
Q26Base 3.31 3.31
Emitter 3.31 3.31Collector 3.31 3.31
Q27Base 3.31 3.31
Emitter 3.31 3.31Collector 3.31 3.31
Q28Base 3.29 3.33
Emitter 0 3.35Collector 3.31 0.05
Q29(4953)1 8.64 8.572 8.58 03 9.04 9.024 9.03 9.055 0 06 0 07 0 08 0 0
Q30Base 8.96 8.96
Emitter 8.96 8.96Collector 8.96 8.96
Q31Base 0.01 0.01
Emitter 0 0Collector 5.11 5.11
Q32Base 0.02 0.02
Emitter 8.60 8.60Collector 8.58 8.58
Q33Base 0 0
Emitter 0 0Collector 4.96 4.96
Q34Base 0 0
Emitter 0 0Collector 8.96 8.96
U1(FSAV330)1 0 02 0.72 0.943 0.73 0.584 0.73 0.565 0 0.556 0.72 0.537 0.71 0.548 0 09 0.7 0.3910 0.7 0.3811 0.71 0.3712 0.92 0.8813 0 014 0.92 0.93
MODEPIN NO.
STOP PLAY
15 0 016 5.14 5.15
U2(4580M)1 0 02 0 03 0 04 -4.92 -4.915 0 06 0 07 0 08 5.06 5.06
U3(PT2303)1 0 02 0 03 2.47 2.464 5.14 5.155 2.47 2.476 2.47 2.477 0 08 2.47 2.479 2.46 2.46
10 2.45 2.4611 2.47 2.4712 2.47 2.4713 5.14 5.1514 2.47 2.4715 0 016 0.05 0.06
U4(AM5898N)1 2.69 2.652 1.28 1.283 1.27 1.274 5.02 4.845 8.62 8.496 8.66 8.537 8.66 8.538 2.48 2.329 2.47 2.6
10 5.14 5.1411 1.37 1.3512 1.37 1.613 0 014 2.48 3.6515 2.49 1.1716 0 017 2.46 2.4418 2.48 2.5119 0 020 2.47 2.3821 2.48 2.5322 1.37 1.3523 1.37 1.3724 5.14 5.1425 0 026 0 027 0 028 8.64 8.5129 3.69 3.4630 1.26 1.2531 1.29 1.3
MODEPIN NO.
STOP PLAY
32 2.68 2.6533 3.32 3.3234 1.37 1.37
U5(TPS60400)1 -4.92 -4.912 5.14 5.143 -2.54 -2.564 0 05 2.48 2.46
U6(S-8242A)1 0.06 -7.592 0.06 0.063 0 04 -3.74 -3.85 0 06 -7.5 -7.6
U9(MT1389P)1 0 02 1.53 0.913 0 0.784 0 0.595 1.03 0.436 1.7 1.717 1.98 2.18 0 2.129 1.98 2.1310 1.98 2.1311 0.35 1.0212 0 1.0113 0 2.0214 1.98 2.0215 0 0.1716 0 0.1717 3.33 2.2618 3.33 3.3319 3.35 3.3520 2.76 021 0.64 022 0 023 2.71 2.7224 0 1.9925 1.98 1.3726 0 1.2527 1.32 028 0 1.3429 0 030 2.45 1.2231 0 1.332 0 033 1.37 1.2934 0 035 0 036 0 1.3537 1.36 1.2538 0 039 0 3.3540 0 041 0 042 0 3.3543 0 0
MODEPIN NO.
STOP PLAY
44 0 0.7745 1.79 1.7846 0 047 0 048 0 0.9849 0 3.3550 0 1.7851 0 0.0152 0 053 0 054 0 355 0 056 0 2.0557 0 1.9758 0 1.6459 0 0.0260 2.22 0.0361 0 0.0562 2.45 0.0663 0.58 0.0364 0 065 0 3.3566 0 067 0 2.8568 1.42 0.6469 0 0.6270 2.26 3.2171 0 2.5472 0 0.6173 0.54 0.9174 0 0.6175 0 076 0 077 2.16 2.0578 0 079 0 1.4280 0 1.6281 0 082 0 1.3683 0.77 1.0284 0 1.4885 0 1.6586 1.63 1.2187 0 088 0 3.3289 0 1.1890 0 091 0 0.0292 0 1.9593 0 1.7894 0 095 0 096 0 3.3597 0 3.2998 0 4.8799 0 4.05
100 4.39 4.39101 0 3.35102 0 3.35103 0 0
3-41 3-42 Copyright © 2008 LG Electronics. Inc. All right reserved.Only for training and service purposes
LGE Internal Use Only
MODEPIN NO.
STOP PLAY
104 0 0105 0 3.34106 0 3.35107 0 0108 0 0109 0 0110 0 0111 2.44 1.6112 0 0113 0 0.95114 0.84 1.05115 0.92 1.22116 0.92 1.18117 1.32 1.15118 0 3.35119 0 1.13120 1.22 1.12121 0 1.21122 0 1.24123 0 1.56124 1.68 1.36125 0 1.25126 0 1.21127 1.16 1.1128 0.96 1.05129 1.05 1.12130 0 0131 3.35 3.35132 0 1.61133 0 3.15134 0 2.88135 3.18 3.1136 0 2.66137 0 1.55138 1.62 1.65139 0.08 0.1140 0.39 0.75141 2.12 1.37142 1.79 1.78143 2.3 1.9144 1.64 1.84145 3.35 3.34146 1.53 1.53147 3.35 3.35148 0 0149 0.02 0.03150 0.02 0.07151 0 0.06152 1.24 1.58153 1.64 1.61154 1.22 1.61155 0 1.5156 3.35 3.35157 0 0158 0 0159 0 0160 1.79 1.78161 0 0162 0.01 0163 0.01 0
MODEPIN NO.
STOP PLAY
164 0.01 0165 0.01 0166 0.01 0167 0.01 0168 0.01 0169 0.01 0170 3.35 3.34171 3.37 3.37172 0.02 0.02173 0 0174 1.79 1.79175 0 0.24176 0.02 0.02177 0.3 0.3178 0 0179 3.34 3.34180 3.24 3.24181 0.03 0.03182 0.02 0183 1.61 1.62184 0.45 0185 0.45 0.45186 0 0187 0.45 0.45188 3.35 3.35189 0 0190 3.35 3.35191 0.61 0.9192 0 0193 1.33 1.33194 0 1.33195 3.35 3.35196 1.53 1.53197 0 0198 0 3.35199 3.35 0200 3.35 3.34201 0 0202 0 0203 0 0204 3 0205 1.79 1.79206 3.33 3.33207 3.35 3.35208 0 1.26209 0 0210 3.35 3.35211 0 0212 3.35 3.35213 0.2 0214 0 3.35215 0 0.02216 0 0217 0.25 0218 0 0219 0 0220 0 0221 1.79 1.78222 0 3.35223 0 1.22
MODEPIN NO.
STOP PLAY
224 0 0225 0 0226 0 0227 1.67 1.66228 1.56 1.55229 1.64 1.65230 3.35 3.35231 3.35 3.35232 0 0233 0 1.79234 0 0.64235 0.71 0.58236 0 0.81237 0 0.76238 0 0239 0 3.28240 0 1.76241 0 1.56242 1.56 1.56243 1.24 1.42244 0 3.35245 0 0246 0 3.35247 3.35 1.61248 1.34 1.35249 1.44 1.47250 0 1.9251 0 0252 1.71 1.72253 0 1.69254 0 1.13255 0 0.9256 3.35 3.35
U10(LD1117)1 0 02 1.8 1.813 3.36 3.364 1.8 1.81
U11(HY57V641620ETP-7-C)1 3.34 3.342 0.91 0.953 3.34 3.344 0.82 1.055 0.91 1.226 0 07 0.91 1.188 1.29 1.159 3.34 3.3410 1.1 1.1311 1.2 1.1212 0 013 1.27 1.2114 3.33 3.3315 2.43 1.616 3.26 3.1517 3.11 2.8718 3.18 3.1119 2.95 2.6520 1.38 1.5521 1.59 1.66
MODEPIN NO.
STOP PLAY
22 0.06 0.123 0.38 0.7524 2.12 1.3725 2.29 1.926 1.64 1.8427 3.34 3.3428 0 029 1.61 1.530 1.29 1.6131 1.62 1.6132 1.3 1.5833 0.06 0.0634 0 0.0735 0.03 0.0336 0 037 3.35 3.3538 1.55 1.5539 2.44 1.6140 0 041 0 042 1.03 1.1243 3.33 044 0.93 1.0545 0 101046 0 047 1.25 1.2148 1.3 1.2549 3.33 3.3350 1.64 1.3651 1.78 1.5652 0 053 0.72 1.2454 0 0
U12(KH29LV160BTC-70G)1 0.75 2.862 1.41 0.643 1.85 0.624 2.25 3.215 1.21 2.546 2.06 0.617 0.53 0.918 1.98 0.619 0 010 0 011 3.35 3.3512 3.35 3.3513 0 014 3.35 3.3515 0.21 0.7416 0 017 0.58 018 2.45 1.5119 2.07 020 2.22 2.621 1.78 1.2822 1.92 1.6423 1.98 1.9824 2.09 2.0625 2.16 2.0526 0 0
MODEPIN NO.
STOP PLAY
27 0 028 0 029 1.18 1.4230 0.4 0.3231 1.34 1.6232 0.38 0.3133 0.89 1.3634 0.39 0.3135 0.77 1.0236 0.4 0.3137 3.35 3.3538 1.42 1.4839 0.31 0.3140 1.61 1.6541 0.18 0.342 1.62 1.2143 0.11 0.344 1.7 1.1845 2.15 1.9546 0 047 0 048 0.01 0.02
U13(24C04)1 0 02 0 03 0 04 0 05 3.35 3.356 3.35 3.357 0 08 3.35 3.35
U14(GT6319)1 0 02 0 03 0 04 0 05 5.04 5.046 4.21 4.217 0 08 5.04 5.049 5.02 5.0210 0 011 1.9 1.912 0 013 2.46 2.4614 5.04 5.0415 5.04 5.0416 2.19 2.1917 0 018 0 019 5.04 5.0420 4.59 4.5921 5.02 5.0222 2.14 2.1423 5.04 5.0424 4.99 4.9925 4.91 4.9126 4.5 4.527 0 028 5.02 5.02
MODEPIN NO.
STOP PLAY
U15(HT7150)1 0 02 8.66 8.613 5.05 5.054 8.66 8.61
3-43 3-44Copyright © 2008 LG Electronics. Inc. All right reserved.Only for training and service purposes
LGE Internal Use Only
PRINTED CIRCUIT BOARD DIAGRAMS1. MAIN P.C.BOARD(TOP VIEW)
3-45 3-46 Copyright © 2008 LG Electronics. Inc. All right reserved.Only for training and service purposes
LGE Internal Use Only
MAIN P.C.BOARD(BOTTOM VIEW)
3-47 3-48Copyright © 2008 LG Electronics. Inc. All right reserved.Only for training and service purposes
LGE Internal Use Only
2. KEY P.C.BOARD(TOP VIEW) (BOTTOM VIEW)
3. USB P.C.BOARD
3-49 3-50 Copyright © 2008 LG Electronics. Inc. All right reserved.Only for training and service purposes
LGE Internal Use Only
MEMO MEMO