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LCD TV SERVICE MANUAL
CHASSIS : LP81A

MODEL : 42LG30R
CAUTION

42LG30R-MA

BEFORE SERVICING THE CHASSIS, READ THE SAFETY PRECAUTIONS IN THIS MANUAL.

CONTENTS

CONTENTS .............................................................................................. 2 SAFETY PRECAUTIONS ..........................................................................3 SPECIFICATION .......................................................................................4 ADJUSTMENT INSTRUCTION ...............................................................11 TROUBLE SHOOTING ...........................................................................15 BLOCK DIAGRAM...................................................................................20 EXPLODED VIEW .................................................................................. 21 SVC. SHEET ...............................................................................................

Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes

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LGE Internal Use Only

SAFETY PRECAUTIONS
IMPORTANT SAFETY NOTICE
Many electrical and mechanical parts in this chassis have special safety-related characteristics. These parts are identified by in the Schematic Diagram and Replacement Parts List. It is essential that these special safety parts should be replaced with the same components as recommended in this manual to prevent Shock, Fire, or other Hazards. Do not modify the original design without permission of manufacturer.

General Guidance
An isolation Transformer should always be used during the servicing of a receiver whose chassis is not isolated from the AC power line. Use a transformer of adequate power rating as this protects the technician from accidents resulting in personal injury from electrical shocks. It will also protect the receiver and it's components from being damaged by accidental shorts of the circuitry that may be inadvertently introduced during the service operation. If any fuse (or Fusible Resistor) in this TV receiver is blown, replace it with the specified. When replacing a high wattage resistor (Oxide Metal Film Resistor, over 1W), keep the resistor 10mm away from PCB. Keep wires away from high voltage or high temperature parts.

Leakage Current Hot Check (See below Figure) Plug the AC cord directly into the AC outlet.
Do not use a line Isolation Transformer during this check. Connect 1.5K/10watt resistor in parallel with a 0.15uF capacitor between a known good earth ground (Water Pipe, Conduit, etc.) and the exposed metallic parts. Measure the AC voltage across the resistor using AC voltmeter with 1000 ohms/volt or more sensitivity. Reverse plug the AC cord into the AC outlet and repeat AC voltage measurements for each exposed metallic part. Any voltage measured must not exceed 0.75 volt RMS which is corresponds to 0.5mA. In case any measurement is out of the limits specified, there is possibility of shock hazard and the set must be checked and repaired before it is returned to the customer.

Leakage Current Hot Check circuit

AC Volt-meter
Before returning the receiver to the customer,
always perform an AC leakage current check on the exposed metallic parts of the cabinet, such as antennas, terminals, etc., to be sure the set is safe to operate without damage of electrical shock.

Leakage Current Cold Check(Antenna Cold Check)
With the instrument AC plug removed from AC source, connect an electrical jumper across the two AC plug prongs. Place the AC switch in the on position, connect one lead of ohm-meter to the AC plug prongs tied together and touch other ohm-meter lead in turn to each exposed metallic parts such as antenna terminals, phone jacks, etc. If the exposed metallic part has a return path to the chassis, the measured resistance should be between 1M and 5.2M. When the exposed metal has no return path to the chassis the reading must be infinite. An other abnormality exists that must be corrected before the receiver is returned to the customer.

To Instrument's exposed METALLIC PARTS

0.15uF

Good Earth Ground such as WATER PIPE, CONDUIT etc.

1.5 Kohm/10W

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LGE Internal Use Only

SPECIFICATION
NOTE : Specifications and others are subject to change without notice for improvement.

1. Application Range.
This spec sheet is applied to the 37"/42"/47"/52" LCD TV used LP81A chassis.

3. Test method
3.1 Performance : LGE TV test method followed. 3.2 Demanded other specification Safety : UL, CSA, IEC specification 3.3 EMC : FCC, ICES, IEC specification

2. Specification
Each part is tested as below without special appointment 2.1 Temperature : 25±5°C(77±9°F), CST : 40±5°C 2.2 Relative Humidity : 65±10% 2.3 Power Voltage : Standard input voltage (100~240V@ 50/60Hz) · Standard Voltage of each products is marked by models 2.4 Specification and performance of each parts are followed each drawing and specification by part number in accordance with BOM . 2.5 The receiver must be operated for about 20 minutes prior to the adjustment.

4. General Specification(TV)
No 1. Item Display Screen Device Specification 37" wide Color Display Module 42" wide Color Display Module 47" wide Color Display Module 52" wide Color Display Module 2. 3. Aspect Ratio LCD Module 16:9 37" TFT WXGA LCD 42" TFT WXGA LCD 47" TFT WXGA LCD 42" TFT WUXGA LCD 47" TFT WUXGA LCD 52" TFT WUXGA LCD 4. 5. 6. Operating Environment 1) Temp. : 0 ~ 40 deg 2) Humidity : 0 ~ 85% Storage Environment 1) Temp. : -20 ~ 60 deg 2) Humidity : 0 ~ 85 % Input Voltage AC100 ~ 240V, 50/60Hz 37" HD MAKER :LPL 42" HD MAKER :AUO, LPL 47" HD MAKER :LPL 42" FHD MAKER : LPL 47" FHD MAKER : LPL 52" FHD MAKER : SHARP LGE SPEC Measurement Result Remark Resolution:1366X768(HD) Resolution:1366X768(HD)/1920*1080(FHD) Resolution:1366X768(HD)/1920*1080(FHD) Resolution:1920X1080(FHD)

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LGE Internal Use Only

No 7.

Item Power Consumption

Specification Power on (Blue) : LG30/LG50 Power on (White) : LG60 TBD 250W 230W 320W 310W 350W 52" St-By (Red) 1.0 W (All) 47" 37" 42" HD HD FHD HD FHD FHD

Measurement

Result

Remark Volume: 1/8 volume of sound distortion point

LG60:St-by Light condition Inch 42" (H)x(V)x(D) 983 x 576 x 52.7 0.681 x 0.681 18 CCFL 42" 37" 877 x 516.8 x 55.5 0.200 x 0.600 16 EEFL 42" 983 x 576 x 51 0.227 x 0.681 47" 1096 x 640 x 51 0.76125 x 0.76125 42" 983 x 576 x 47.3/(51) 0.4845 x 0.4845 47" 1096 x 640 x 50/(51) 0.5415 x 0.5415 52" 1219.0x706.7x64.64 0.600 x 0.600 24CCFL 3H,AG/ 2H, AG LPL,CMO,AUO / Sharp unit mm mm mm mm mm mm mm mm mm mm mm mm mm mm mm mm mm mm mm mm mm mm mm (W) x (H) x (D) (H) x (V) [w/o inverter]/(with inverter) [w/o inverter]/(with inverter) [with inverter] [with inverter] [with inverter] Remark [with inverter]

8

LCD Module (Maker : AUO, CMO, CPT, LPL, SHARP)

Maker AUO(HD) Outline Dimension Pixel Pitch Back Light CMO (FHD) LPL(HD) Outline Dimension Pixel Pitch Back Light Outline Dimension Pixel Pitch Back Light Outline Dimension Pixel Pitch Back Light Outline Dimension Pixel Pitch Back Light LPL(FHD) Outline Dimension Pixel Pitch Back Light Outline Dimension Pixel Pitch Back Light SHARP (FHD) Outline Dimension Pixel Pitch Back Light Display Colors Coating

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LGE Internal Use Only

5. Chrominance & Luminance Specification
No 1 Luminance (W/O PC mode) Item Min 400 400 400 400 400 400 360 2 Color Coordinate White Red Green Blue White Red Green Blue White Red Green Blue White Red Green Blue X Y X Y X Y X Y X Y X Y X Y X Y X Y X Y X Y X Y X Y X Y X Y X Y Typ. -0.03 Typ. -0.03 Typ. -0.03 Typ. -0.03 Typ 500 500 500 450 500 500 450 0.280 0.290 0.640 0.330 0.290 0.600 0.150 0.060 0.279 0.292 0.636 0.335 0.284 0.610 0.144 0.063 0.279 0.292 0.635 0.344 0.286 0.614 0.146 0.061 0.270. 0.292 0.638 0.342 0.296 0.615 0.144 0.064 Typ. +0.03 LPL47" (HD) Typ. +0.03 LPL 42" (HD) 42LG30RA-TA Typ. +0.03 LPL 37" (HD) LC370WXN-SAA1 37LG30R/37LG60UR Typ. +0.03 Max Unit cd/m2 Maker AUO 42" HD LPL 37" HD LPL 42" HD LPL 47" HD LPL 42" FHD LPL 47" FHD SHARP 52" FHD AUO 42" (HD) T420XW01-VB 42LG30R-TA Remark -50cm from the surface - Full White Pattern

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LGE Internal Use Only

No

Item White Red Green Blue White Red Green Blue White Red Green Blue X Y X Y X Y X Y X Y X Y X Y X Y X Y X Y X Y X Y

Min Typ. -0.03

Typ 0.279 0.292 0.640 0.335 0.289 0.610 0.144 0.066

Max Typ. +0.03

Unit

Maker LPL 42" (FHD) LC420WUN-SAB1

Remark 42LG60FR-TA

LC420WUE-SAB1 42LG50FR-TA

Typ. -0.03

0.279 0.292 0.640 0.335 0.289 0.610 0.144 0.066

Typ. +0.03

LPL 47" (FHD) LC470WUN-SAB1

47LG60FR-MA

LC470WUE-SAB1 47LG50FR-TA

Typ. -0.03

0.272 0.277 0.640 0.330 0.280 0.600 0.150 0.060

Typ. +0.03

SHARP 52" (FHD) LK520D3LZ17

52LG50FR-TA

3

Contrast ratio (W/O PC mode)

1000:1 800:1 700:1 TBD 1000:1

1500:1 1200:1 1200:1 1500:1 1500:1 1.3 (1.25)

AUO 42" (HD) LPL 32"/37" (HD) LPL 42" (HD) LPL 47" (HD) LPL 42"/47" (FHD) SHARP 52" (FHD) All w/o Sharp 52" (Sharp 52")

840:1/800:1 1200:1

4

Luminance Variation

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LGE Internal Use Only

6. SET Optical Feature
6.1. General feature - Measurement Condition: Full white/ Vivid => Measure the black luminance after 30 seconds. - C/R is excepted for PC mode No 1 37 inch(HD) LPL 2 42 inch(HD) AUO 3 42 inch(HD) LPL 4 47 inch(HD) LPL 5 42 inch(FHD) LPL Surface Luminance, white 6 47 inch(FHD) LPL Surface Luminance, white 7 52 inch(FHD) Sharp Surface Luminance, white LWH(AV/Component/HDMI) LWH(PC) Contrast Ratio LWH(AV/Component/HDMI) LWH(PC) Dynamic CR Contrast Ratio LWH(AV/Component/HDMI) LWH(PC) Dynamic CR Parameter Contrast Ratio Surface Luminance, white Contrast Ratio Surface Luminance, white Contrast Ratio Surface Luminance, white Contrast Ratio Surface Luminance, white Contrast Ratio Symbol Dynamic CR LWH (AV/Component/HDMI) LWH (PC) Dynamic CR LWH (AV/Component/HDMI) LWH(PC) Dynamic CR LWH (AV/Component/HDMI) LWH(PC) Dynamic CR LWH(AV/Component/HDMI) LWH(PC) Dynamic CR Value Min 9000:1 360 250 9000:1 360 250 9000:1 360 250 9000:1 360 250 9000:1 TBD 360 250 9000:1 TBD 360 250 9000:1 TBD 320 250 12000:1 15000 : 1 400 Cd/m2 Cd/m2 For 50/60/70 Tool 12000:1 15000 : 1 450 For 50/60/70 Tool Cd/m2 Cd/m2 12000:1 15000 : 1 450 For 50/60/70 Tool Cd/m2 Cd/m2 12000:1 450 Cd/m2 Cd/m2 12000:1 450 Cd/m2 Cd/m2 12000:1 450 Cd/m2 Cd/m2 Typ 12000:1 450 Cd/m2 Cd/m2 Unit Remark

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LGE Internal Use Only

7. Component Video Input (Y, PB, PR)
No. 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14 15 Specification Resolution 720*480 720*480 720*576 720*480 720*480 720*576 1280*720 1280*720 1280*720 1920*1080 1920*1080 1920*1080 1920*1080 1920*1080 1920*1080 H-freq(kHz) 15.73 15.75 15.625 31.47 31.50 31.25 44.96 45.00 37.50 28.125 33.72 33.75 56.25 67.432 67.5 V-freq(Hz) 59.94 60.00 50.00 59.94 60.00 50.00 59.94 60.00 50.00 50.00 59.94 60.00 50 59.94 60.00 Pixek clock 13.500 13.514 13.500 27.000 27.027 27.000 74.176 74.250 74.25 74.250 74.176 74.25 148.5 148.350 148.5 Remark SDTV, DVD 480I(525I) SDTV, DVD 480I(525I) SDTV, DVD 576I(625I) 50Hz SDTV 480P SDTV 480P SDTV 576P 50Hz HDTV 720P HDTV 720P HDTV 720P 50Hz HDTV 1080I 50Hz, HDTV 1080I HDTV 1080I HDTV 1080P HDTV 1080P HDTV 1080P

8. RGB Input (Analog PC)
No. 1. 2 3. 4 5 6 7 8 9 10 11 12 Resolution 640*350 720*400 640*480 800*600 1024*768 1280*768 1360*768 1366*768 1280*1024 1400*1050 1600*1200 1920*1080 H-freq(kHz) 31.468 31.469 31.469 37.879 48.363 47.776 47.72 47.7 63.668 65.317 74.537 66.587 V-freq(Hz) 70.80 70.08 59.94 60.31 60 59.87 59.799 60 59.895 59.978 59.869 59.934 Pixel clock(MHz) 25.17 28.32 25.17 40 65 79.5 84.75 84.62 109.00 121.75 161.00 138.50 EGA DOS VESA(VGA) VESA(SVGA) VESA(XGA) VESA(WXGA) VESA(WXGA) VESA(WXGA) SXGA SXGA UXGA WUXGA (Reduced Blanking) Only FHD Only FHD Only FHD Only FHD Proposed Remark

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LGE Internal Use Only

9. HDMI Input (PC-Spec. out but display correctly at only HDMI/DVI IN 1 via DVI to HDMI cable)
No. 1. 2. 3. 4 5 6 7 8 9 10 11 Resolution 720x400 640x480 800x600 1024x768 1280x768 1360x768 1366x768 1280x1024 1400x1050 1600x1200 1920x1080 H-freq(kHz) 31.468 31.469 37.879 48.363 47.776 47.72 47.7 63.595 65.160 74.077 66.647 V-freq(Hz) 70.08 59.94 60.31 60.00 59.87 59.799 60 60.0 60.0 60.0 59.988 Pixel clock(MHz) 28.32 25.17 40.00 65.00 79.5 84.62 84.62 108.875 122.50 130.375 138.625 VESA(VGA) VESA(SVGA) VESA(XGA) VESA(WXGA) VESA(WXGA) VESA(WXGA) SXGA SXGA UXGA WUXGA Only FHD Only FHD Only FHD Only FHD Proposed Remark

10. HDMI input ( DTV )
No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Resolution 720*480 720*480 720*576 1280*720 1280*720 1280*720 1920*1080 1920*1080 1920*1080 1920*1080 1920*1080 1920*1080 1920*1080 1920*1080 H-freq(kHz) 31.47 31.5 31.25 44.96 45 37.5 28.125 33.72 33.75 56.25 67.432 67.5 27 33.75 60 50 59.94 60 50 50 59.94 60 50 59.94 60.00 24 30 V-freq(Hz) 59.94 Pixel clock(MHz) 27 27.027 27 74.176 74.25 74.25 74.25 74.176 74.25 148.5 148.350 148.5 74.25 74.25 Proposed SDTV 480P SDTV 480P SDTV 576P HDTV 720P HDTV 720P HDTV 720P HDTV 1080I HDTV 1080I HDTV 1080I HDTV 1080P HDTV 1080P HDTV 1080P HDTV 1080P HDTV 1080P Remark Support(not spec) support(not spec) support(not spec)

Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes

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LGE Internal Use Only

ADJUSTMENT INSTRUCTION
1. Application Range
These instructions are applied to all of the LCD TV, LP81A Chassis.

4. PCB assembly adjustment method (Using MSTAR Download program)
4.1 S/W program download
4.1.1 Preliminary steps (1) Download method 1 (PCB Assy) - HD

2. Notice
2.1 Because this is not a hot chassis, it is not necessary to use an isolation transformer. However, the use of isolation transformer will help protect test instrument. 2.2 Adjustment must be done in the correct order. 2.3 The adjustment must be performed in the circumstance of 25±5°C of temperature and 65±10% of relative humidity if there is no specific designation. 2.4 The input voltage of the receiver must keep 100~220V, 50/60Hz. 2.5 Before adjustment, execute Heat-Run for 15 minutes at RF no signal.

3. Adjustment items
3.1 PCB assembly adjustment items
Download the MSTAR main software (IC801, Mstar ISP Utility)

- FHD

3.2 SET assembly adjustment items
DDC Data input. Adjustment of White Balance. Factoring Option Data input

(2) Connect the download jig to D-sub jack

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LGE Internal Use Only

4.1.2 Download steps (1) Execute `ISP Tool' program in PC, then a main window will be opened

(5).Click "Auto(2)" tab and set as below (6).click "Run(3)". (7).After downloading, check "OK(4)" message.

Double click

(2) Click the connect button and confirm "Dialog Box".

# USB DOWNLOAD 1. Put the USB Stick to the USB socket

(3) Click the Config button and Change speed E2PROM Device setting : over the 350Khz

(4) Read and write bin file Click "(1)Read" tab, and then load download file(XXXX.bin) by clicking "Read".

2. Automatically detecting update file in USB Stick

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LGE Internal Use Only

3. Select "Start" Button and press "ok" button Updating is staring.

4.2.1.1 Confirmation - We confirm whether "0xF3 (offset), 0xF4 (gain)" address of EEPROM "0xBC" is "0xAA" or not. - If "0xF3", "0xF4" address of EEPROM "0xBC" isn't "0xAA", we adjust once more - We can confirm the ADC values from "0x06~0x0B" addresses in a page "0xBC" *Manual ADC process using Service Remocon. After enter Service Mode by pushing "ADJ" key, execute "Auto-RGB" by pushing "_" key at "Auto-RGB". 4.2.2 Component input ADC 4.2.2.1 Component Gain/Offset Adjustment7 - Convert to Component in Input-source - Input the Component ( Which has 720p@60Hz YPbPr signal : 100% Color Bar (MSPG-925F Model : 217 / Pattern: 65 ) into Component.

- Adjust by commanding AUTO_COLOR_ADJUST (0xF1) 0x00 0x02 instruction 4. Finishing the version updating, you have to put out USB stick and "AC Power" off 5. After putting "AC Power" on and check updated version on your TV 4.2.2.2 Confirmation - We confirm whether "0xF3 (offset), 0xF4 (gain)" address of EEPROM "0xBC" is "0xAA" or not. - If "0xF3", "0xF4" address of EEPROM "0xBC" isn't "0xAA", we adjust once more - We can confirm the ADC values from "0x06~0x0B" addresses in a page "0xBC" *Manual ADC process using Service Remocon. After enter Service Mode by pushing "ADJ" key, execute "Auto-RGB" by pushing "_" key at "Auto-RGB".

4.2 ADC Process
O Required Equipments - Remote controller for adjustment - MSPG-925F Pattern Generator 4.2.1 Method of Auto RGB Color Balance - Convert to RGB PC in Input-source - Input the PC 1024x768 @ 60Hz 1/2 Black & White Pattern(MSPG-925F model:60, pattern:54) into RGB

- Adjust by commanding AUTO_COLOR_ADJUST(0xF1) 0x00 0x02 instruction.

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LGE Internal Use Only

5. Adjusting the White Balance
5.1 Purpose and Principle for adjustment of the color temperature
- Purpose : Adjust the color temperature to reduce the deviation of the module color temperature. - Principle : To adjust the white balance without the saturation, (Fix the one of R/G/B gain to C0 and decrease the others.)

6. Adjustment of White Balance
· Adjustment mode : Two modes (Cool and Warm) (Medium data is automatically calibrated by the Cool data) · Color analyzer(CA100+, CA210) should be used in the calibrated ch by CS-1000 (LCD : CH9, PDP : CH10) · Operate the zero-calibration of the CA100+ or CA-210, then stick sensor to the module when adjusting. · For manual adjustment, it is also possible by the following sequence. 1) Select white pattern of heat-run by pressing "POWER ON" key on remote control for adjustment then operate heat run longer than 15 minutes. (If not executed this step, the condition for W/B may be different.) 2) Push "Exit" key. 3) Change to the AV mode by remote control.(Push front-AV or Input key) 4) Input external pattern(85% white pattern) 5) Push the ADJ key two times (entering White Balance mode) 6) Stick the sensor to the center of the screen and select each items (Red/Green/Blue Gain and Offset) using D/E(CH +/-) key on R/C.. 7) Adjust R/ G/ B Gain using F/G(VOL+/-) key on R/C. 8) Adjust two modes (Cool and Warm) (Fix the one of R/G/B and change the others) 9) When adjustment is completed, Exit adjustment mode using EXIT key on R/C.

5.2 Adjustment mode : Two modes of Cool and Warm (Medium data is automatically calibrated by the Cool data)
O Required Equipments - Remote controller for adjustment - Color Analyzer : CA100+ or CA-210 or same product LCD TV( ch : 9 ), - Auto W/B adjustment instrument(only for Auto adjustment)

5.3 Connecting diagram of equipment for measuring (For Automatic Adjustment)

(1) Enter the adjustment mode of DDC - Set command delay time : 50ms - Enter the DDC adjustment mode at the same time heat- Maintain the DDC adjustment mode with same condition of Heat-run -> Maintain after AC off/on in status of Heat-run pattern display) (2) Release the DDC adjustment mode - Release the adjust mode after AC off/on or std-by off/on in status of finishing the Hear-run mode - Release the Adjust mode when receiving the aging off command(F3 00 00) from adjustment equipment - Need to transmit the aging off command to TV set after finishing the adjustment. - Check DDC adjust mode release by exit key and release DDC adjust mode (3) Enter the adjust mode of white balance - Enter the white balance adjustment mode with aging command(F3, 00, FF) * Luminance min value is 200cd/ß in the cool mode( For LCD)

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LGE Internal Use Only

TROUBLE SHOOTING
1. No power
1) Symptom 1) It is not discharged minutely from the module. 2) Light doesnot come into the front LED. 2) Check process
Is plug in Power cord inserted?

No

Plug in power cord

Yes Is the Line Filter and PSU connected?

No

Connect a cable to SC100

Yes Is the fuse of PSU normal? F101 Yes Is it connected that PSU and P1100 in Main Board Yes After all cables connect is removed to PSU. The AC voltage marking is authorized on manual. When ST-By 5V is not operated. replace PSU.

No

Replace the fuse.

No

Connect a cable P1100

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LGE Internal Use Only

2. No Raster
1) Symptom 1 OSD and image occur at screen. 2) It maintains the condition where the front LED is green . 2) Check process

Does mimute discharge a Module?

No

Is the inverter /VaVs on?

No

Is output the normality Low/High voltage except Stand-by 5V?

No

Replace the Power board

Yes Check the LCD Module Yes Reconnect the Panel line cable (HD:P403, FHD:402) CN700(PDP/LCD) Yes

Is the Link cable normal?

No

Is the IC801's output normal?

No

Replace the VSC.

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LGE Internal Use Only

3. Unusual display from RF mode.
1) Check process

Is Video output of the Tuner normal? (Check TU500_Pin13)

No

Is the Input voltage normal? (Check Pin3)

Yes

Is the I2C communication normal? (Check Pin9, Pin10)

No Yes Check the power

No Check the Tuner

Block A
Is the LVDS cable connected well? No Cable inserts well

Yes Change the IC(IC801)

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LGE Internal Use Only

4. Unusual display from rear AV mode .
Is video input of the A/V Jack normal? (Check R8044) Yes Same as Block A No Check the input source.

5. Unusual display from Side AV mode.
Is video input of the Side A/V Jack normal? (Check R8043) Yes Same as Block A No

Check the input source.

6. Unusual display from Side S-Video mode.
Is video input of the S-Video Jack normal? (Check R8041,8042) Yes Same as Block A No Check the input source.

7. Unusual display from componen 1 mode. t
Is Video input of the Comp1 jack normal? (Check R8011,8012,8013) Yes No

Check the input source.

Change IC801

8. Unusual display from component 2 mode.
Is Video input of the Comp2 jack normal? (Check R8030,8032,8033) Yes No

Check the input source.

Change IC801

9. Unusual display from RGB mode.
Is Video input of the Comp2 jack normal? (Check R8035,8037,8039) Yes

No

Check the input source.

Change IC801

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LGE Internal Use Only

10. No Sound
10-1 Symptom 1) LED is green. 2) Screen display but sound is not output.

10-2 Check process
All input(mode) is no sound. No No Is the speaker on it men? Menu? Yes Set on speaker in menu

Yes

Only HDMI is no sound

No

Download the EDID data.

Is the speaker cable normal?

No

Check the Speaker cable

Yes Only AV/ COM2/PC input is no sound. Yes

No

Is the output of IC600 normal? Yes

No

Replace IC600

Yes

Check the signal after IC600 refer to circuit diagram

No IC801 operate normal? Normal Yes

Replace IC801

Only External speaker is no sound

No

Check the Tuner In/Out. No IC 601 operate normal? Normal Yes Replace Main B/D Replace IC601

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LGE Internal Use Only

RF (Tuner)
DDR MEM MAIN NVM x0.55 AMP_MUTE TPA3107D Audio Amp CVBS IN Y/C IN x0.55 LINE_MUTE Mstar Romeo LGE6891CD AUDIO_SW LINE IN LVDS x0.55 S_VIDEO_DET LINE OUT LM324 X4 AMP LINE OUT SW_RESET SERIAL PART_I2C FLASH

TUNER_I2C CVBS IN

LINE IN

SIF IN CVBS IN

AV1 in

LINE IN

Spk Out 1W(Mono) SideAV in (AV2 in)

DISPLAY MODULE

Y/Pb/Pr IN

Comp1 in

Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes
x0.55 ROM_I2C DSUB_DDC x0.55 LINE IN UART_Rx/Tx HDMI_SEL TMDS351PAG HDMI MUX MC74HC4066 Audio SW

Y/Pb/Pr IN

LINE IN LINE IN

Comp2 in

RGB in (D/L)

LINE IN R/G/B/HS/VS IN

BLOCK DIAGRAM

- 20 TMDS(HDMI in) DDC/HPD/CEC [CEC not through HDMI MUX, direct JACK to MAIN IC] DDC EDID NVM MPEG RX/TX MPEG RESET I2S IN 656 IN

PC Audio in

EDID NVM

RS-232C

Rx/Tx MX3232

TMDS(HDMI in)

HDMI1

EDID NVM DDC

DDC/HDP/CEC

HDMI2

TMDS(HDMI in)

PART_I2C NTP3000A SW_RESE Digital T I2S OUT Audio AMP

DDC/HPD/CEC

DDC

TMDS(HDMI in)

EDID NVM

HDMI3 (Option)

DDC/HPD/CEC

x4

PART_I2 C SW_RESE 656 IN T CVBS OUT

TW9910 Sub Decoder

USB(AV I/O, Data I/O)

USB (Option)

Zoran VADDIS-966XD +5V BD2041 MPEG Decoder Protect IC

(Option)

LGE Internal Use Only

DDR MEM SERIAL FLASH

EXPLODED VIEW
IMPORTANT SAFETY NOTICE
Many electrical and mechanical parts in this chassis have special safety-related characteristics. These parts are identified by in the Schematic Diagram and EXPLODED VIEW. It is essential that these special safety parts should be replaced with the same components as recommended in this manual to prevent X-RADIATION, Shock, Fire, or other Hazards. Do not modify the original design without permission of manufacturer.

400

821

804

806

521

540

801

805

200

803

200T

200N

530

802

550 500 121 901 900

300

Copyright LG Electronics. Inc. All right reserved. Only for training and service purposes

510

120

122

830

- 21 -

LGE Internal Use Only

INPUT1 : COMP1/2,RS232C,PC

INPUT2 : CVBS,SIDE AV
RS-232C *ONLY LG30
R148 0 D103 R106 220K C115 1000pF READY R134 10K

JK101 PPJ209-02

COMPONENT2
[RD]O_SPRING 3E [RD]CONTACT 4E [RD]1P_CAN2 2E [WH]C_LUG_L 5D [WH]1P_CAN 2D [RD]C_LUG_L 5C [RD]1P_CAN1 2C [BL]C_LUG_L 5B [BL]1P_CAN 2B [GN]O_SPRING 3A [GN]CONTACT 4A [GN]1P_CAN 2A
D119 30V SD05 R123 75 D118 30V SD05 R122 75 D117 30V SD05 R121 75 D116 5.6V R147 0 R120 220K R140 10K C114 1000pF READY D115 5.6V R146 0 R119 220K R138 10K C113 1000pF READY R139 12K

JK100 PPJ209-02 COMP2_R

COMPONENT1
3E [RD]O_SPRING 4E[RD]CONTACT 2E [RD]1P_CAN2 5D [WH]C_LUG_L
D104 R149 0 R108 220K C116 1000pF READY R136 10K 5.6V

COMP1_R
R135 12K

+5V_ST 10 5
RS232C IC101 MAX3232CDR C109 0.1uF C110 0.1uF

CVBS
JK200 PPJ148-10

9

SIDE AV
4 JK204 PPJ218-01 4A [YL]O_SPRING SIDE_V
READY

5B 4B 2B 3 2
R251 0 C214 100pF 50V READY

[YL]CONTACT [YL]O_SPRING [YL]1P_CAN [WH]C_LUG_L [WH]1P_CAN [RD]CONTACT [RD]O_SPRING [RD]1P_CAN
D204 5.6V D202 5.6V D201 SD05 R208 75

COMP2_L
R141 12K

COMP1_L
R137 12K C107 0.1uF

C1+

1

16

VCC

IR_OUT
8
R130 100 R131 100 C112 OPT D121 CDS3C30GTH 30V C111 OPT D120 CDS3C30GTH 30V

R210 0 C207 OPT

2D [WH]1P_CAN 5C [RD]C_LUG_L

5.6V

V+

2

15

GND

CVBS_VIN

C1-

3

14

DOUT1

3 7 2 6 5A 2A 3B 1 2B [WH]U_CAN [RD]O_SPRING [RD]CONTACT [RD]U_CAN
D215 5.6V

C2+

COMP2_Pr

COMP1_Pr
D105 SD05 R109 75

4

13

RIN1

[YL]CONTACT [YL]U_CAN [WH]C_LUG

C213 0.1uF 16V

D214 SD05

R241 75

C106 0.1uF

R222 0

R218 R209 220K

10K

C2-

5

12

ROUT1

R128 100

CVBS_LIN
R219 12K

2C [RD]1P_CAN1 5B [BL]C_LUG_L

V-

6

11

DIN1

R129 100

C211 100pF 50V OPT

C108 0.1uF

DOUT2

7

10

DIN2

COMP2_Pb

COMP1_Pb
D106 SD05 R110 75

RIN2

8

9

ROUT2

+3.3V_MST +5V_ST

R247 R242 220K

10K R248 12K

SIDE_LIN

5A 4A 2A

2B [BL]1P_CAN 3A [GN]O_SPRING

R223 0 C212 100pF 50V OPT

R220 R212 220K

10K

CVBS_RIN
R221 12K

COMP2_Y

COMP1_Y
D107 R111 75 SD05

R150 4.7K READY

R151 4.7K READY

KCN-DS-1-0088

4C 5C 2C

R252 0

R249 C215 100pF 50V READY

10K

4A[GN]CONTACT 2A [GN]1P_CAN

RXD

JK103
D216 5.6V R244 220K R250 12K

SIDE_RIN

SDC 15 applying check

*RS232C TX
MAIN : EAN41348201(TI) SUB : 0IMCRSG010A(STM)

TXD

JK201 PPJ200-01
JK205 PSJ015-02 3 GROUND D217 SD05 R245 75 OPT R236 1K OPT D208 OPT C216 100pF 50V OPT R229 470K

R213 0

SPK_R-_HOTEL
OPT C208 10uF

SIDE_Y
C_LUG_S_2

5 4
5.6V

MNT_LOUT

**MULTI ITEM PC
JK104 KCN-DS-1-0089
6630TGA004K AC A C

PC SOUND

C B OPT Q203 E

16V

4D

+5V_MULTI

C100 0.1uF D108 ENKMC2837-T112

C101 0.1uF D109 ENKMC2837-T112

C102 0.1uF D111 ENKMC2837-T112

1.24C02-SUB:0IMMRAL014D 2.ENKMC2837-SUB:0DS226009AA (KDS226)
JK102 PEJ024-01

4C

C_LUG_L_2 D218 SD05 R246 75

SIDE_C

RT1C3904-T112 R211 0

3 2
OPT R237 1K OPT D209 OPT C217 100pF 50V OPT R230 470K C B

4B

C_LUG_S_1

AUDIO_R MNT_ROUT MUTE_LINE
POP NOISE

4A

C_LUG_L_1

C209 10uF

5

O_SPRING

S_VIDEO_DET
D219 SD05 C210 OPT READY

16V

A

C

A

C

1

5.6V

AC

AC

3 PC_R
R116 75

E_SPRING T_TERMINAL1
D122 R132 220K

SHIELD 7

E

OPT Q202 RT1C3904-T112

6 1 7 2 8 3 9 4 10 5 15 14 13 12 11

RED_GND GND_2 RED GREEN_GND DDC_DATA GREEN BLUE_GND H_SYNC BLUE NC V_SYNC GND_1 SYNC_GND DDC_CLOCK DDC_GND D113 30V CDS3C30GTH A1 2 A0 1 D112 30V CDS3C30GTH R114 68 R113 4.7K C104 68pF R118 75 R115 68 R117 75

6A 7A 4

L100 1000-ohm

R143

10K R142 12K

PC_AUD_R

R214 0

SPK_R+_HOTEL

D114 30V CDS3C30GTH

DSUB_SDA

B_TERMINAL1 R_SPRING T_SPRING

5.6V CDS3C05GTA

PC_G 5 PC_HS PC_B PC_VS +5V_ST
IC100 L101 D123 5.6V R133 220K 1000-ohm R144 10K R145 12K

PC_AUD_L

7B 6B 8
R126 R127 4.7K 4.7K C105 0.1uF

B_TERMINAL2 T_TERMINAL2 SHIELD_PLATE

CDS3C05GTA

D110 30V CDS3C30GTH

R112 4.7K

C103 68pF AT24C02BN-10SU-1.8

DSUB_SCL

8

VCC

7

WP R124 100 R125 100

16 SHILED
A2 3 6 SCL GND 4 5 SDA

DSUB_SCL DSUB_SDA

THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION. FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.

THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION. FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.

HDMI
+5V_ST HPD_S/W_2
+5V_HDMI_2 2SC3875S +5V_HDMI_2
A2 KDS184 A1 SIDE_HDMI

HPD_S/W_3
+5V_HDMI_3
SIDE_HDMI

+5V_ST
+5V_HDMI_3

PANEL WAFER
OPTION SW_HPD : USE SW HPD (Default) MST_HPD : USE MST HPD

HD_ATN
TXCE0+,TXCE0-,TXCE1+,TXCE1-,TXCE2+,TXCE2-,TXCE3+,TXCE3-,TXCE4+,TXCE4-,TXCLKE+,TXCLKETXCE0+,TXCE0-,TXCE1+,TXCE1-,TXCE2+,TXCE2-,TXCE3+,TXCE3-,TXCLKE+,TXCLKEP403-*1 SMAW200-26C

A1

A2 KDS184

FHD
HD_NORMAL

1 3 5 7 9 11 13 15 17 19

2 4 6 8 10 12 14 16 18 20 22 24 26

R344 1K

D303 KDS184S

HPD_MST_2

Q300
RT1C3904-T112

R319 1K IC301 AT24C02BN-10SU-1.8
A0 1 8 VCC

D300 KDS184S

HPD_MST_3

R335 10K
SIDE_HDMI

Q307C 2SC3875S
B E A0

IC303 AT24C02BN-10SU-1.8
1 8 VCC

P402 SMAW200-40C
VCC_LCD
VCC_LCD

P403 SMW200-26C

R301 10K

C B E

A1

2

7

WP

C313 50V R353 R354 0.01uF 47K 47K

C

C

1
SCL

2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40
FHD 8BIT:NC
TXCO0+ TXCO1+ TXCO2+ TXCLKO+ TXCO3+
TXCO4+ R408 0

1 3
R438 HD 0

2 4 6 8 10 12 14 16 18 20 22 24 26
R432 0 READY TXCE0+ TXCE1+ TXCE2+ TXCLKE+ TXCE3+ R428 CPT 0

21 23 25

A1

2

7

WP R323 100 R322 100

R330 R331 47K 47K

C301 0.01uF
50V

JACK_GND 20 19 HPD 18 +5V_POWER 17DDC/CEC_GND

A2

3

6

R349 100 +3.3V_MULTI_MST R348 100 R333 51K CEC_C
30V

3
+3.3V_MULTI_MST
READY

GND

4

5

SDA

5 7 9
R407 R424 X O 4.7K X
TXCE0TXCE1TXCE2TXCLKE+3.3V TXCE3TXCE4-

5 7 9
TXCE0TXCE1TXCE2TXCLKETXCE3-

A2 . 22 19 HPD 18 +5V_POWER GND

3

6

SCL

R334 R383 0
READY

30K FHD 8BIT:NC

4

5

SDA

16 SDA 15 SCL 14 NC

JP1115

16 SDA 15 SCL

JP1117

14 NC 13 CEC 12 CLK-

JP1118

DDC_SDA2 DDC_SCL2 CEC TMDS2_RXCTMDS2_RXC+ TMDS2_RX0TMDS2_RX0+ TMDS2_RX1TMDS2_RX1+ TMDS2_RX2TMDS2_RX2+
+5V_HDMI_2 R329 10K R328 10K

13 CEC 12 CLK11 CLK_SHIELD 10 CLK+ 9 DATA08 DATA0_SHIELD

CEC TMDS3_RXCTMDS3_RXC+ TMDS3_RX0TMDS3_RX0+ TMDS3_RX1TMDS3_RX1+ TMDS3_RX2TMDS3_RX2+

+5V_HDMI_3 R352 10K

D302 30V

READY

17 DDC/CEC_GND

JP1116

DDC_SDA3 DDC_SCL3

READY

R376 0

C MMBD301LT1G D304

Q306 BSS83
D B S G

11 13 15 17 19 21 23 25

FHD 8BIT:NC

TXCE0+ TXCE1+ TXCE2+ TXCLKE+ TXCE3+ TXCE4+
R431 READY 0

11 13 15 17 19
NC

CEC

R332 200

CDS3C30GTH

C307 0.01uF 50V READY

HD FHD

CPT LPL 32 sharp

R428 O X X

HPD_S/W_3 TMDS2_RX2+ TMDS2_RX2-

TMDS2_RX1+ TMDS2_RX1-

11 CLK_SHIELD 10 CLK+ 9 DATA08 DATA0_SHIELD 7 DATA0+ 6 DATA15 DATA1_SHIELD 4 DATA1+ 3 DATA22 DATA2_SHIELD 1 DATA2+ 20 JACK_GND 21 .

TMDS2_RX0+ TMDS2_RX0-

R351 10K

TMDS2_RXC+ TMDS2_RXCDDC_SCL2 DDC_SDA2 HPD_S/W_2

HDMI3_5V_DET

A

21 23 25

NC

HDMI2_5V_DET

7 DATA0+ 6 DATA15 DATA1_SHIELD 4 DATA1+ 3 DATA22 DATA2_SHIELD 1 DATA2+

+5V_MULTI +5V_ST
0 R359 READY A1 A2

R407 4.7K FHD R424 0 HD TXCO0TXCO1TXCO2TXCLKOTXCO3-

FHD 8BIT:NC

27 29 31 33 35 37 39

+3.3V 10BIT except for 52 sharp R401 4.7K

D305 KDS184S
KDS184

C

R402 8BIT or 52 sharp 0

0.01uF

READY

READY

C311

C314

R382

R381

SIDE_HDMI

R370 0

R369 0

DC1R019NBH JK303

0.01uF

22

22

TXCO4-

R373 0

+3.3V_HDMI_SW
R415 0 READY

GND_7

VCC_8

HPD3

SDA2

VDD

A24

A23

A22

A21

B24

B23

B22

B21

JK302 QJ41193-FEE2-7F

**MULTI ITEM 1.24C02-SUB:0IMMRAL014D

HPD2

SCL2

SIDE_HDMI

VCC_7

R401 4.7K 10BIT X 8BIT(HD) X 8BIT(FHD) X 52 sharp 32 sharp X

R402 X 0 0 0 X

HD

R_USE LG50_60_70 L411-*1 0

64

63

62

61

60

59

58

57

56

55

54

53

52

51 50

49

2.SMD HDMI Jack-SUB:6612B00015B +5V_ST HPD_S/W_1
+5V_HDMI_1
A1 A2 KDS184

L410-*1 0 R_USE LG50_60_70

FHD
TXCLKO+,TXCLKO-,TXCO0+,TXCO0-,TXCO1+,TXCO1-,TXCO2+,TXCO2-,TXCO3+,TXCO3-,TXCO4+,TXCO4-

+5V_HDMI_1

DDC_SDA3 DDC_SCL3 TMDS3_RXCTMDS3_RXC+ TMDS3_RX0TMDS3_RX0+ TMDS3_RX1TMDS3_RX1+

R377 22 R378 22

SDA3 SCL3 GND_1 B31 A31 VCC_1

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32

48 47 46 45 44

A14 B14 VCC_6 A13 B13 GND_6 A12 B12 VCC_5 A11 B11 SCL1 SDA1 HPD1 EQ S2
R379 22 R380
R368 0 READY

TMDS1_RX2+ TMDS1_RX2C316 0.01uF

BEAD_USE LG50_60_70 L411 USE LG50_60_70 BG1608B501F R422 0

SCL_LED SDA_LED
R420 L403 EAM38769502 4.7K BG1608B121F L406 EAM38769502

+3.3V_MST

HPD_MST_1
R300 10K
B

R310 1K Q301C
RT1C3904-T112 E

D301 KDS184S

C

IC300 AT24C02BN-10SU-1.8 2SC3875S
A0 1 8 VCC

C309

0.01uF

B32 A32 GND_2 B33 A33 VCC_2

A1

2

7

WP

C300 50V R326 R327 0.01uF 47K 47K R321 100 R320 100

IC302 TMDS351PAG

43 42 41 40 39 38 37 36 35 34 33

TMDS1_RX1+ TMDS1_RX1P400

R423

0

USE LG50_60_70 BG1608B501F L410 BEAD_USE LG50_60_70

R421 4.7K

KEY1 KEY2
+3.3V_MST C412 1 USE LG50_60_70 L407 120OHM 470pF C404 470pF C411 0.1uF C408 0.1uF NOT LG60 R404 L404 120OHM UBW2012-121F C406 22uF 16V R413 R425 3.3K 0 0 Q406 LG60 PNP E B C R405 0 LG60 R444 3.3K R445 3.3K LG60 +5V_ST

TMDS1_RX0+ TMDS1_RX0C315 0.01uF

12505WS-15A00

A2 . 22 19 HPD 18 +5V_POWER 17 DDC/CEC_GND 16 SDA 15 SCL GND

3

6

SCL

4

5

SDA

JP1119

14 NC 13 CEC 12 CLK-

JP1120

DDC_SDA1 DDC_SCL1
+5V_HDMI_1 R324 10K R325 10K

TMDS3_RX2TMDS3_RX2+

C308

0.01uF

B34 A34 GND_3 VSADJ

22

11 CLK_SHIELD 10 CLK+ 9 DATA0-

8 DATA0_SHIELD 7 DATA0+ 6 DATA1-

5 DATA1_SHIELD 4 DATA1+ 3 DATA2-

2 DATA2_SHIELD 1 DATA2+

4.7K

20 JACK_GND 21 .

4.7K

CEC TMDS1_RXCTMDS1_RXC+ TMDS1_RX0TMDS1_RX0+ TMDS1_RX1TMDS1_RX1+ TMDS1_RX2TMDS1_RX2+

TMDS1_RXC+ TMDS1_RXCDDC_SCL1 DDC_SDA1 HPD_S/W_1 +3.3V_HDMI_SW R374
4.7K R375 4.7K READY *TI Recommand -> Pull up

2

USE LG50_60_70 ZD401 5.6B

5.6B ZD402 USE LG50_60_70

3

C414 22uF 16V

UBW2012-121F USE LG50_60_70

+5V_ST_SW

LG30 LG50 LG60 LG70

R404 O O X O

R444 X X 3.3K X

R445 Q406 L410 L411 L407 X X X X X BEAD BEAD BEAD X X O BEAD BEAD BEAD 3.3K BEAD BEAD BEAD X X

C414 X 22uF 22uF 22uF

R414 X X 10K X

4

5

READY 6

LED_R_PWM_Big EYEQ_RESET IR
+5V_ST IR-OUT R440 10K R443 10K IR-OUT C B C402 Q405 2SC3052 E OPT READY E IR-OUT Q404 2SC3052 IR-OUT R441 10K C +5V_ST R442 IR-OUT 22

**MULTI ITEM 2SC3052(P/N:0TRIY80001A) RA:2SC3875(P/N:0TR387500AA)
IR_OUT

7

R372 4.7K 1%

8

Z4

Z3

Z2

Y4

Y3

Y2

Y1

Z1

SCL_SINK

VCC_3

GND_4

VCC_4

GND_5

S1

SDA_SINK

HPD_SINK

HDMI1_5V_DET

9

IR-OUT L402 EAM38769502 C407 ZD400 5.6B R439 47K B IR-OUT

LG60

R366 4.7K READY

HDMI_SEL2

10

11

OPT C403 47pF R414 BG1608B121F R403 10K READY LG60 10K

C310 0.01uF

C312 0.01uF

R345 R346 0 0

12

SPK-N* L G 6

Sound module output

R347 R350 0 0

R355 R356 0 0

R357 R358 0 0

+3.3V_MULTI_MST
+3.3V +3.3V R371 47K R365 READY 0 R360 4.7K READY

13 L400 C400 14 0.1uF EAM38769502

LED_G
NOT LG60 Q402 2SA1530A-T112-1R NOT LG60 C E B R409 10K READY R410 100

15

R361

HDMI_SEL1

L401 16 C401 470pF NOT LG60

EAM38769502 NOT LG60

R362

HDMI_0+ HDMI_0-

HDMI_1+ HDMI_1-

HDMI_C+ HDMI_C-

JK301 QJ41193-FEE2-7F

HDMI_2+ HDMI_2-

AC_DET

+5V_ST R434 10K NOT LG60 C

3.3K R417 READY B 3.3K R435 NOT LG60

LED_R/PWM

HDMI_SCL HDMI_SDA

Q403 KRC102S NOT LG60 E

CONTROL KEY

NOT LG60 THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION. FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.

THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION. FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.

Copyright C 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes

LGE Internal Use Only

TUNER

Digital Audio AMP
+16V_NTP C615 0.1uF C617 0.1uF R604 C612 3 . 3 35V 330uF C613 0.01uF

+16V_NTP C666 C620 330uF 35V 1000pF R607 3.9

+16V_NTP
P601

C622 1000pF

+1.8V L611 UBW2012-121F EAM38769505 L603 2S DA-8580 2F 1S 1F C632 0.47uF C636 0.1uF R623 4.7K C637 0.1uF R624 4.7K C639 0.01uF R626 3.3 R625 3.3 C638 0.01uF L610 UBW2012-121F EAM38769505
SPK_L-

L614
120OHM

SMAW250-04

UBW2012-121F

SPK_L+

+1.8V_AVDD EAM38769505 L615
120OHM

SPK_RSPK_R+ SPK_LSPK_L+

1

R609 3.9

2

+1.8V_DVDD
3

C611

22000pF

UBW2012-121F EAM38769505

READY 30V D601

D607 READY 1N4148W

100V

100V

C618 1uF

D606 READY 1N4148W

C616 22000pF

R608 3.9 C619 1000pF

R610 3.9 C621 1000pF

EAP38319001

4

PGND1A_2

PGND1A_1

PVDD1A_2

PVDD1A_1

PVDD1B_2

PVDD1B_1

PGND1B_2

TU500 TAFT-Z703D 1 NC_1 2 GND_1 3 4 5 6

PGND1B_1

SPK_L-

OUT1A_2

OUT1A_1

OUT1B_2

OUT1B_1

NON EU TUNER

TU500-*1 TAFT-H703F

NTSC TUNER

56

55

54

53

52

51

50

49

48

47

46

45

44

1 2 3 4

NC_1 GND_1 +B[5V] NC_2 RF_AGC TP[33V_OPTION] NC_3 GND_2 DATA CLOCK AS NC_4 V-OUT AFT A-OUT SIF-OUT NC_5 NC_6 NC_7 NC_8

43

VDR1B

BST1B

BST1A C608 READY 1uF D602 30V VDR1A /RESET AD VSS_IO CLK_I C642 100pF
READY

1 2 3 4 5 6 7 8 9 10 11 12 13 14

42 41 40 39 38 37

NC_2 VDR2A BST2A PGND2A_2 PGND2A_1 OUT2A_2 OUT2A_1 PVDD2A_2 PVDD2A_1 PVDD2B_2 PVDD2B_1 OUT2B_2 OUT2B_1 PGND2B_2
D604 READY 1N4148W 100V 30V D600 READY

Chinese Hotel Option
C624 1uF +16V_NTP C625 C631 22000pF 1000pF R618 3.9 +16V_NTP C635 1000pF +16V_NTP R622 3.9
D605 READY 1N4148W 100V HOTEL_OPT P600 12505WR-09A00

+B[5V] NC_2 RF_AGC TP[33V_OPTION]

R514 0

+5V_TUNER
C521 10uF 16V

Near the pin

5 6

SW_RESET I2S_MCLK
+1.8V_AVDD C603 1000pF C601 100pF R600 3.3K +3.3V

C606 1000pF

R601 100

C503 0.01uF

7 8 9

L502 BLM18BD102SN1D READY

R507

100
READY

10 READY

CLK_O VDD_IO

READY

C507 0.01uF

C510 4.7uF 35V

11

+5V_TUNER

IC600 NTP3000A

C646

36 35 34 33 32 31 30 29

+16V_NTP

12 13 14 15 16

7 NC_3 8 GND_2 9 DATA 10 CLOCK 11 AS 12 NC_4 13 V-OUT 14 AFT 15 A-OUT 16 SIF-OUT 17 NC_5 18 NC_6 19 NC_7 20 NC_8 21 SHIELD
READY

AGNDPLL LFM AVDDPLL

READY

10K R648

C626 0.1uF

C629 0.1uF

1S 1F EAP38319001

C643 R627 0.1uF 4.7K

R635 3.3 C647 0.01uF L612 UBW2012-121F EAM38769505

10K R631 HOTEL_OPT

C605 0.1uF

DGNDPLL

L607 2S DA-8580 2F

C644 R628 0.1uF 4.7K C640 0.47uF

C648 0.01uF R636 3.3

SPK_R+
AUDIO_R

HOTEL_OPT

0.1uF

L613 UBW2012-121F EAM38769505

1

2

3

+3.3V

+3.3V
4 SW_RESET 5

R506 330 R505 330 C501 27pF C502 27pF

R504 4.7K

R508 4.7K

17

SPK_RAMP_MUTE_HOTEL

6 HOTEL_OPT HOTEL_OPT C669 4.7uF 10V C B HOTEL_OPT Q609 RT1C3904-T112 E SPK_R-_HOTEL 9 10 SPK_R+_HOTEL 8

+5V_TUNER R518 R519 0 0

18 19 20 21

+1.8V_AVDD C600 10uF 16V C602 0.1uF

DVDDPLL NC_1

SDA_TUNER

L501 UBW2012-121F
120OHM

R617 3.9 C630 1000pF

R621 3.9 C634 1000pF

7

R632 200

SCL_TUNER
C520 0.1uF

R521 220 R522 220 E Q502 2SA1530A-T112-1R C

15

16

17

18

19

20

21

22

23

24

25

26

27

SHIELD

+1.8V_DVDD C604 10uF 16V C607 0.1uF

28

SCL

D603 30V BST2B READY

WCK

DVSS

BCK

SDA

FAULT

DVDD

PGND2B_1

SDATA

PROTECT

VDR2B

TV_MAIN
C513 270pF READY +5V_TUNER

R605 PWM_3B/PWM_HP2 PWM_3A/PWM_HP1

0

READY

R503 4.7K

B

+1.8V_DVDD

C623 22000pF

C614 1uF
0

B C506 4700pF R545 R553 OPT 0 E

AMP_MUTE_HOTEL R642

Q501 RT1C3904-T112 R515 1K C512 0.027uF

C609 16V 10uF

C610 0.1uF

HOTEL_OPT

C

I2S_SDO I2S_WS I2S_SCK

R606

0
E

Q608 2SA1530A-T112-1R
C

10K R650

MAIN_SIF

R513 1K

AM_AUDIO

C651 1000pF 50V

+3.3V_MST

B

100 R651

AC_DET

C667 33pF 50V READY

R602 100

R603 100

C668 33pF 50V READY

AMP :GAIN X 4
IC602 MC74HC4066ADR2G
+12V

SDA_Part SCL_Part

IC601
C B

+5V_MULTI
R611 680K

+5V_MULTI
XA 1 14 VCC

+5V_MULTI

1 OUT1 LM324DOUT4 14
R645 1K

SIDE_LIN

MNT_LOUT
R633 4.7K C641 0.1uF

Q606 RT1C3904-T112 E

R616 15K C628 33pF R620 6.8K

C662

2.2uF R612 680K

R647 4.7K

C649 6800pF

2 INPUT1- INPUT4- 13 3 INPUT1+ INPUT4+ 12 4 VCC
C633 0.1uF

SW_L
+5V_MULTI
R629 680K

YA

2

13

CONTROL_A
C B

R641 10K for SIDE R/L

YB

3

12

CONTROL_D

+5V_MULTI
R637 680K

Q600 RT1C3904-T112 E

AUDIO_SW

MNT_L_AMP
+12V

R615 5.6K

L606
120OHM

XB

COMP1_L

4

11

XD

UBW2012-121F EAM38769505 C664 2.2uF

GND 11

C663 2.2uF R630 680K

R638 680K

SIDE_RIN

MNT_R_AMP
+12V

R614 5.6K C627 33pF R613 15K

5 INPUT2+ INPUT3+ 10 6 INPUT2- INPUT3- 9
R619 6.8K

CONTROL_B

+5V_MULTI
R634 4.7K

5

10

YD

SW_R
+5V_MULTI
R639 680K C665 2.2uF R640 680K
C Q607 RT1C3904-T112 B E R646 1K

CONTROL_C

AUDIO_SW
for COMP1

6

9

YC

7 OUT2
C650 6800pF

OUT3 8

GND

7

8

XC

COMP1_R

MNT_ROUT
R649 4.7K

THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION. FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.

THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION. FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.

Audio S/W : COMP1 or SIDE L/R

SCL_TUNER

SDA_TUNER

H/W OPTION #3


0 HPD_MST_2 0 FLASH_WP READY S_VIDEO_DET

+3.3V_MST SPI_CZ R8171 100 R8172 100

MX25L1605AM2C-15G
CS# 1 8 VCC +3.3V_MST

USB/MPEG DEC
+3.3VDDP SFCS 10K R710 SFDI CS# SO WP# GND

IC703_USB +3.3V_USB IC703 MX25L1605AM2C-15G 1 2 3 4 8 7 6 5 VCC HOLD# SCLK SI R716 4.7K SFCLK SFDO UBW2012-121F C710 22uF
16V C712 0.1uF

+3.3VDDP

L711
120OHM

+1.8V
+3.3VDDP
READY C754 10nF 50V C713 0.1uF

L713
120OHM

MSTAR
C714 47uF
16V C717 0.1uF

+3.3V_MST +3.3V_MST R8173 4.7K READY R8174 4.7K

+3.3V_MST FLASH_WP_ZORAN

R8001 0 READY

R8187 10K

IC803

SPI_DO

SO

2

7

HOLD#

+1.8VDDC

+3.3VDDA

UBW2012-121F

HWRESET 20pF HDMI1_5V_DET

TXD 100 RS232C RXD RS232C 100 PANEL_ON R8058 R8057 HPD_MST_3

READY

UBW2012-121F C711 R729 22uF 200 16V

120HZ: H Normal: L

R8090 4.7K READY R8091 4.7K

R8105 1K PWM0 +3.3V_MST R8106 READY

R8111 R8109 R8107 3.3K READY READY PWM1 PWM2 PWM3

R8005

100 R8061 0 READY C RT1C3904-T112

WP#

3

6

SCLK SPI_CLK SI R8179 100 SPI_DI

HDMI2_5V_DET

HDMI3_5V_DET

I2S_CLK_IN

I2S_WS_IN

I2S_DIN

+3.3VDDP
TOP SIDE! FLASH_WP_ZORAN

L714 L712
120OHM 120OHM

C715 22uF
C716 0.1uF

+1.8VDDA
AVDD_33_254 AVDD_MPLL VDDC_240 VDDC_193 VDDP_235 VDDP_221 VDDP_207 VDDP_194 GPIOE[0] GPIOE[1] GPIOE[2] GPIOE[3] HWRESET GND_241 GND_222 GND_208

HDMI_SEL2

+3.3V_MULTI_MST

HDMI_SEL1

R8079

R8080

50V

C726 0.1uF

50V

C727 0.1uF

50V

C728 0.1uF

50V

C729 0.1uF

50V

C730 0.1uF

50V

C731 0.1uF

50V

C732 0.1uF

0

0

GND

4

5

R8108 3.3K

R8110 3.3K

R8099 10K

R8112 READY

FLASH_WP

R8067

10K

B

Q803

E

I2S_SDO

I2S_SCK

RXB1P GND_3 RXB2N RXB2P HPLUGB DDCDB_DA DDCDB_CK RXACKN RXACKP GND_11 RXA0N RXA0P

2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17

191 190 189 188 187 186 185 184 183 182 181 180 179 178 177 176 175 174 173 172 171 170 169 168 167 166 165 164 163 162 161 160 159 158 157 156 155 154 153 152 151 150 149 148 147 146 145 144 143 142 141 140 139 138 137 136 135 134 133 132 131 130 129 116 117 118 119 120 121 122 123 124 125 126 127 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 128 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99

PWM2 NC_190 NC_189 GPIOB[6] GPIOB[4] VDDC_185 GND_184 VDDP_183 IRIN INT DDCA_CK DDCA_DA DDCR_CK DDCR_DA PWM1 PWM0 SAR3 SAR2 SAR1 SAR0 SDO CSZ SDI SCK GND_166 VDDP_165 ALE RDZ WZ R AD[7] AD[6] AD[5] AD[4] AD[3] AD[2] AD[1] AD[0] MADR[11] MADR[10] MADR[9] MADR[8] VDDC_149 GND_148 VDDM_147 MADR[7] MADR[6] MADR[5] MADR[4] MADR[3] MADR[2] MADR[1] MADR[0] WEZ CASZ AVDD_MEMPLL

X800 14.31818MHz

READY DEBUG TEST OPTION JK700 12505WS-04A00

SFDI

0.1uF

100 RS232C

C838

C841

TXCE3-

TXCE2-

TXCE1-

TXCE4TXCE3+

TXCE2+

TXCE1+

0.1uF

0.1uF

100 100

100

100 100

0.1uF

HPLUGA REXT DDCDA_DA

20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51

C801

100

100

1

R8077

R8082

R8085

R8087

R8089

R8092

R8094

REFM BIN1P SOGIN1 GIN1P RIN1P VCOM3 BIN0P VCOM2

C850

C852

C859

C865

R8065

R8066

2

JP701

DUPRD0 For Initial Download +1.8VDDA +1.8VDDC C747 0.1uF C748 0.1uF C749 0.1uF C750 0.1uF C751 0.1uF C752 0.1uF C753 0.1uF DEC_656[0] DUPTD0

R8015

R8022 R8027 R8028 R8023

0 READY 0 AVDD_33_254 AVDD_MPLL READY 0 0READY READY RXB0N RXB0P

C866

R8064 1M

R8074

R8095

READY

REFP

C862

JP700

SFCLK

DDCDA_CK HSYNC1 VSYNC1 VCLAMP

100

R741 0

R705 1K
1/10W 5%

RXA2P

19

0.1uF

18

100

+3.3VDDP

GND_17 RXA2N

0.1uF

External F/W Download

RXA1P

0.1uF

C735 0.1uF 50V

C736 0.1uF 50V

C737 0.1uF 50V

C738 0.1uF 50V

C739 0.1uF 50V

C740 0.1uF 50V

C741 0.1uF 50V

C742 0.1uF 50V

C743 0.1uF 50V

C744 0.1uF 50V

RXA1N

C882

AVDD_33_14

TXCLKO+

TXCLKO-

TXCLKE+

TXCLKE-

TXCO4TXCO3+

TXCO3-

TXCO2-

TXCO1-

TXCO4+

TXCO2+

TXCO1+

TXCO0+

TXCO0-

TXCE4+

TXCE0+

TXCE0-

1/10W 5% ZORAN SRAM Board F/W Download

16V

+3.3VDDP

RXB1N

1

192

PWM3

I2S_WS

0.1uF

20pF

R740 0

R704 1K

UBW2012-121F

I2S_MCLK

LVACKM

LVBCKM

RXBCKN

RXBCKP

LVACKP

LVBCKP

IVSYNC

IHSYNC

NC_210

NC_209

NC_196

NC_195

DI[13]

DI[12]

DI[11]

DI[10]

LVA0M

LVA1M

LVA2M

LVA3M

LVB0M

LVB1M

LVB2M

LVB3M

RXB0N

RXB0P

LVA0P

LVA1P

LVA2P

LVA3P

LVB0P

LVB1P

LVB2P

LVB3P

DI[9]

DI[8]

DI[7]

DI[6]

DI[5]

DI[4]

DI[3]

DI[2]

DI[1]

DI[0]

XOUT

ICLK

XIN

IDE

+3.3VDDA

+3.3V_MULTI_MST

243

242

241

240

239

238

237

236

235

234

233

232

231

230

229

228

227

226

225

224

223

222

221

220

219

218

217

216

215

214

213

212

211

210

209

208

207

206

205

204

203

202

201

200

199

198

197

196

195

194

256

255

254

253

252

251

250

249

248

247

246

245

244

193

TXCLKO+,TXCLKO-,TXCO0+,TXCO0-,TXCO1+,TXCO1-,TXCO2+,TXCO2-,TXCO3+,TXCO3-,TXCO4+,TXCO4TXCE0+,TXCE0-,TXCE1+,TXCE1-,TXCE2+,TXCE2-,TXCE3+,TXCE3-,TXCE4+,TXCE4-,TXCLKE+,TXCLKE-

GPIOB[5]

IC802 AT24C64AN-10SU-2.7
A0 VCC

+3.3V_MST

GIN0P SOGIN0 RIN0P AVDD_33_39 GND_40 HSYNC0 VSYNC0 VSYNC2 BIN2P SOGIN2 GIN2P RIN2P C1

3

3.3K

3.3K

VDDC_240

VDDC_193

VDDP_235

VDDP_221

VDDP_207

VDDP_194

GPIOE[0]

GPIOE[1]

GPIOE[2]

GPIOE[3]

JP702

IC801-*1 LGE6891DD HD
52 53 54 55 56 57 58 59 60 61 62 63 64

1

8

+3.3V_MST

A1

2

7

WP

A2

3

6

SCL R8175 0

SCL_Part

GND 10K

HWRESET

GND_241

GND_222

GND_208

4

5

SDA

SDA_Part R8176 0

LVACKM

LVBCKM

RXBCKN

RXBCKP

LVACKP

LVBCKP

IVSYNC

IHSYNC

NC_210

NC_209

NC_196

XIN

Y0 CVBS3 CVBS2 CVBS1 VCOM1 CVBS0 VCOM0 AVDD_33_58 CVBSOUT1 CVBSOUT0 GND_61 SIP0P AVDD_SIF SIF1P

IDE

JP703

C0

R8157

R8158

5

50V

50V

50V

50V

50V

50V

50V

256

255

254

253

252

251

250

249

248

247

246

245

244

243

242

241

240

239

238

237

236

235

234

233

232

231

230

229

228

227

226

225

224

223

222

221

220

219

218

217

216

215

214

213

212

211

210

209

208

207

206

205

204

203

202

201

200

199

198

197

196

195

194

GND_134 RASZ BADR[0] BADR[1] MCLK MCLKZ

193

VDDM_135

R8029 R8024 R8025

0 READY 0 READY 0

RXB1N RXB1P GND_3 RXB2N

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64

192 191 190 189 188 187 186 185 184 183 182 181 180 179 178 177 176 175 174 173 172 171 170 169 168 167 166

PWM3 PWM2 NC_190 NC_189 GPIOB[6] GPIOB[5] GPIOB[4] VDDC_185 GND_184 VDDP_183 IRIN INT DDCA_CK DDCA_DA DDCR_CK DDCR_DA PWM1 PWM0 SAR3 SAR2 SAR1 SAR0 SDO CSZ SDI SCK GND_166 VDDP_165 ALE RDZ WRZ AD[7] AD[6] AD[5] AD[4] AD[3] AD[2] AD[1] AD[0] MADR[11] MADR[10] MADR[9] MADR[8] VDDC_149 GND_148 VDDM_147 MADR[7] MADR[6] MADR[5] MADR[4] MADR[3] MADR[2] MADR[1] MADR[0] WEZ CASZ AVDD_MEMPLL VDDM_135 GND_134 RASZ BADR[0] BADR[1] MCLK MCLKZ C802 R8178 C869 0.1uF C868 0.1uF

R8126 R8127 R866 R8115 R8116 R8117

100 100 100 100 100 100

NOT LG60

R8102

PWM2 PWM3

READY

Y1

ICLK

4

NC_195

DI[13]

DI[12]

DI[11]

DI[10]

LVA0M

LVA1M

LVA2M

LVA3M

LVB0M

LVB1M

LVB2M

LVB3M

LVA0P

LVA1P

LVA2P

LVA3P

LVB0P

LVB1P

LVB2P

LVB3P

DI[9]

DI[8]

DI[7]

DI[6]

DI[5]

DI[4]

DI[3]

DI[2]

DI[1]

DI[0]

XOUT

GPIOF[0]

GPIOF[1]

GPIOF[2]

GPIOF[3]

GPIOF[4]

GPIOF[5]

GPIOF[6]

GPIOF[7]

GPIOF[8]

GPIOF[9]

GND_100

DQS[1]

GND_105

MDATA[15]

MDATA[14]

MDATA[13]

MDATA[12]

MDATA[11]

MDATA[10]

VDDP_99

GND_113

GND_66

MDATA[7]

MDATA[6]

MDATA[5]

MDATA[4]

MDATA[3]

MDATA[2]

MDATA[1]

MDATA[9]

VDDC_101

MDATA[8]

VDDM_108

VDDM_114

VDDM_119

MDATA[0]

DQS[0]

SIFM

AUL0

AUL1

AUL2

AUR0

AUR1

AUR2

AUL3

AUR3

LED_R/PWM LED_R_PWM_Big LG60 AC_DET TX_MPEG RX_MPEG PWM1 PWM0 EYEQ_RESET

AUVREF

MVREF

L Q D M

AUOUTL3

AUOUTL2

AUOUTL1

AUOUTL0

AUOUTR3

AUOUTR2

AUOUTR1

AUVRADP

AUVRADN

AVDD_AU

AUOUTR0

A C M UO

A M N U O O

MCLKE

UQ DM

Capacitors on VBUSA should be placed as close to Connector as possible. HPD_MST_1

DEC_656[0] : DUPTD0

READY R8026 0 RXB2P READY HPLUGB READY R8053 22 DDCDB_DA R8052 22 DDCDB_CK RXACKN RXACKP GND_11 RXA0N RXA0P AVDD_33_14 RXA1N RXA1P GND_17 RXA2N RXA2P HPLUGA C805 0.1uF R8054 R8055 R8056 C806 C807 C808 0.1uF 0.1uF 0.1uF C810 C811 C812 C813 C814 C815 C816 C817 C818 47 C819 0.1uF 0.047uF 1000pF 0.047uF 0.047uF 0.047uF 0.047uF 0.047uF 0.047uF 0.047uF C809 0.1uF 390 22 22 REXT DDCDA_DA DDCDA_CK HSYNC1 VSYNC1 VCLAMP REFP REFM BIN1P R8030 R8031 R8032 R8033 R8034 R8035 R8036 R8037 R8038 47 47 47 47 47 47 47 47 47 R8039 SOGIN1 GIN1P RIN1P VCOM3 BIN0P VCOM2 GIN0P SOGIN0 READY

MPEG UART

L717
READY 120OHM

+5V_MULTI
DEC_656[7]

Connect to Main IC(CCIR656 Interface) DEC_656[6] DEC_656[5] DEC_656[4] DEC_656[3] DEC_656[2] DEC_656[1] DEC_656[0]

DEC_656[0-7]

HDMI_CHDMI_C+

R8118 R8120 R8121 R8122 R8123

100 0 0 0 0 R8131 100 R8132 1K LPL_CMO R8134 R8135 100 100

IR PANEL_STATUS DSUB_SCL DSUB_SDA SCL_Part SDA_Part E_DIMMING I_DIMMING

UBW2012-121F +5V_USB C722 C723 0.1uF 100uF
16V L716 OPT READY

OCP_EN DEC_656_CLK 22 0 +1.8VDDA R744 R725 R726 15K
1%

HDMI_0HDMI_0+ +3.3V_MULTI_MST

H/W OPTION #1
+3.3V_MST

L718
120OHM

L715 MBW3216-501TF
16V

C724 10uF

+3.3VDDP +3.3VDDA
HPD_MST_2 R8021 READY 0

0

0 0

0 0 0 0 0

HDMI_1HDMI_1+ HDMI_2HDMI_2+

R717

R718 R719

R720 R721 R722 R723 R724

UBW2012-121F

R865 4.7K

HD

50V

50V

C734 0.1uF

+1.8VDDC

USB
P701 1
** 1A Design

HDMI_SDA HDMI_SCL IC705 MIC2009YM6-TR * Analog Video Option * R732 Video Output Level Reference Originally 392 ohm 1%

KJA-UB-4-0004

2

R700 27 R701 27

It s possibel to 27~47ohm

USB_DN USB_DP R702 5.1K
READY

C725 0.1uF
VIN 102 101 100 69 68 72 71 75 74 80 79 78 77 85 84 83 82 88 87 94 93 92 91 90 99 98 97 96 95 89 86 81 76 73 70 67 66 65 GND

IC801 LGE6991DD FHD

MPEG_RESET KEY1 KEY2 SPI_DO SPI_CZ SPI_DI +3.3V_MST

R867 4.7K

FHD

H/W OPTION #2
+3.3V_MST

USE LG50_60_70 R8185 2.2K R8070 4.7K SDA_LED

100 C870 0.1uF

5 4

READY

R709 1K

106 107 108

ZR36966PQCG-XD

IC707

113 114 115 116 117

220K

R715 C719 C720 18pF 18pF

* R715 Recommendation is 6.19k 1% to meet USB2.0 HS cert

6.19K X702

54 53 52 51 50 49 48 47 46 45 44 43 42 41 40 37 33 34 35 28 29 30 31 23 24 25 26 21 39

R727 1K R738 0
1/10W 5%

R732

123 124 125 126 127 128

C709 :EMI Solution

+3.3VDDP RAMADD[11] RAMADD[4-9] RAMADD[4] RAMADD[5] RAMADD[6] RAMADD[7] RAMADD[8] RAMADD[9]
5% 1/10W

I2S_DIN TX_MPEG RX_MPEG I2S_WS_IN I2S_CLK_IN

CVBS3 C827 C828 C829 C830 C831 47 47 C832 0.1uF 0.047uF 0.047uF 0.047uF 0.047uF 0.047uF CVBS2 CVBS1 VCOM1 CVBS0 VCOM0 CVBSOUT1 CVBSOUT0 GND_61 SIP0P AVDD_SIF SIF1P 0.1uF C803

141 140 139 138 137 136 135 134 133 132 131 130 129 116 117 118 119 120 121 122 123 124 125 126 127 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 128 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99

MADR[2] AR800 100 MADR[1] MADR[0]

SIDE_V CVBS_VIN TV_MAIN +3.3V_MULTI_MST

R8043 R8044 R8045 R8046 R8047

47 47 47 47 47

14

15

16

17

18

19

10

11

12

13

20

22

27

32

36

38

+3.3V_MULTI_MST C873 0.1uF MADR[0-11]

RAMDAT[8]

RAMDAT[9] RAMDAT[10]

RAMDAT[11]

RAMDAT[12]

RAMDAT[13] RAMDAT[14]

0.1uF

R707 56 C709 5pF
50V

RAMDAT[15]

R706 4.7K

IPCLK

7

2

3

4

5

1

6

8

9

RAMDAT[8-15] +3.3VDDP
USB

AVDD_33_58 MNT_VOUT_T PIP_VOUT MAIN_SIF +3.3V_MULTI_MST OPT R8048 TW9910 blockR8049

+3.3V_SDRAM

R8143 R8144 R8145 R8146 R8147 R8148 R8149 R8150 R8151 R8152 R8153 R8154

100 100 100 100 100 33 33 100 100 100 100 100

MADR[0-11]

RAMADD[0] RAMADD[8] RAMADD[10] RAMADD[9] RAMADD[11] RAMBA[1] RAMBA[0] RAMCS RAMRAS RAMCAS RAMWE RAMDQM IPCLK

100

100

DEC_656[0]

DEC_656[1]

DEC_656[2]

DEC_656[3]

DEC_656[4]

DEC_656[5]

DEC_656[6]

R8073

R8075

C839

C840

C842

C843

C844 C845 C846

C847

C836

D801 KDS181

DQ2 5 DQ1 4 VDDQ1 3 DQ0 2 VDD1 1

READY

READY

R8018 R8016 100 33K

26

27

25

24

22

23

21

20

19

18

16

15

14

13

12

11

17

10

C824 0.1uF 50V

C834 C835 4.7uF 0.1uF

C837

C848

R8078

HWRESET

DEC_656[7]

C833 10uF 16V

1uF

100

KDS181

C849 2 . 2 u F R8072 100

IC704 HY57V641620FTP

LDQM

WE

DQ7

DQ6

DQ5

RAS

CAS

DQ4

A10/AP

DQ3

BA1

BA0

A3

A2

A1

A0

CS

+3.3V_MULTI_MST

RAMDAT[0] RAMDAT[15] RAMDAT[1] RAMDAT[14] RAMDAT[2] RAMDAT[13] RAMDAT[3] RAMDAT[12] RAMDAT[4] RAMDAT[11] RAMDAT[5] RAMDAT[10] RAMDAT[6] RAMDAT[9] RAMDAT[7] RAMDAT[8] RAMDAT[0-15]
DCDC_7.22V_PIP

GND_100

DQS[1]

GND_105

MDATA[15]

MDATA[14]

MDATA[13]

MDATA[12]

MDATA[11]

MDATA[10]

VDDP_99

MDATA[9]

VDDC_101

MDATA[8]

GND_113

GND_66

MDATA[7]

MDATA[6]

MDATA[5]

MDATA[4]

MDATA[3]

MDATA[2]

MDATA[1]

MDATA[0]

DQS[0]

VSS1

VSS2

VSS3

SIFM

AUL0

AUL1

AUL2

AUR0

AUR1

AUR2

AUL3

AUR3

LDQM

UDQM

AUCOM

VDDM_108

VDDM_114

VDDM_119

AUVREF

AUMONO

AUOUTL3

AUOUTL2

AUOUTL1

AUOUTR3

AUOUTR2

AUOUTR1

AUOUTL0

AUVRADN

AUVRADP

AVDD_AU

AUOUTR0

MCLKE

MVREF

NC1

NC2

SBA1 MCLK MCLKZ CKE UDQM LDQM DQS0 DQS1

5 1 READY 3 D800 1N4148W 100V R8010 100 READY C804 0.1uF C800 4.7uF 10V R8002 0 +3.3V_MST AC_RST R8019 100

MDATA[15]

MDATA[14]

MDATA[13]

MDATA[12]

MDATA[11]

MDATA[10]

MDATA[9]

MDATA[8]

MDATA[7]

MDATA[6]

MDATA[5]

MDATA[4]

MDATA[3]

MDATA[2]

MDATA[1]

MDATA[0]

D802 0.1uF 2.2uF 2.2uF 2.2uF 2.2uF 0.1uF 2.2uF 2.2uF 2.2uF 2.2uF

R8003

100

MDATA[0-15] AUDIO_SW DEC_656_CLK DEC_656[0-7]

9

8

VDDQ2

VDD3

VDD2

VSSQ2

7

VSSQ1

6

16V 0.1uF C880

C861 0.1uF

C863 0.1uF

C864 0.1uF

+2.5V_VDDM_MST

TW9910 block
DCDC_7.22V_PIP R8081 0 E B B MNT_VOUT_T OPT R8004 402 1% R868 402 OPT OPT E OPT Q802 RT1C3904-T112 R8007 68 1608 2SA1530A-T112-1R PIP_V R8014 75 R8020 402 R870 402 C Q804 C B E PIP_VOUT Q805 RT1C3904-T112 R8051 68 1608 R8050 470 R8060 100 OPT R8006 470 B C C TW9910 block MSTAR Recommand : over 8V

+1.2V_VDDC_MST
2.2K 2.2K C860 0.1uF 1000pF 1000pF 1000pF C875 10uF 16V

RAMDAT[7]

RAMDAT[6] RAMDAT[5]

RAMDAT[4]

RAMDAT[3]

RAMDAT[2] RAMDAT[1]

RAMADD[3]

RAMADD[2]

RAMADD[1] RAMADD[0]

RAMDAT[0]

OPT Q801 2SA1530A-T112-1R

E

READY R8071

10K

22K

OPT R8000 0

R8183

22K

RAMADD[0-3]

RAMDAT[0-7]

R8167 1K C876 0.1uF C878 1000pF R8163 1K

+2.5V_VDDM_MST

RAMADD[10]

R8076

C851

R8084

R8088

C853

RAMBA[1] RAMBA[0] RAMCS RAMRAS RAMCAS RAMWE

COMP2_R

COMP2_L

SW_L

SW_R

C854

RAMDQM

L509 MBW3216-501TF C867 0.1uF C877 0.1uF C879 10uF 16V

+3.3V_MST

CVBS_RIN AM_AUDIO

THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION. FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.

THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION. FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.

SW_L/R: COMP2_L/R or SIDE_L/R

SPK-N

GAIN X 4

CVBS_LIN

GAIN X 4

MNT_R_AMP

MNT_L_AMP

PC_AUD_R

PC_AUD_L

DDR SDRAM

C881

VSSQ3

VSSQ4

GPIOF[0]

GPIOF[1]

GPIOF[2]

GPIOF[3]

GPIOF[4]

GPIOF[5]

GPIOF[6]

GPIOF[7]

GPIOF[8]

28

29

30

31

32

33

34

35

36

37

38

39

40

41

42

51

52

53

43

44

45

46

47

48

49

50

54

GPIOF[9]

VDDQ3

VDDQ4

DQ14

DQ11

DQ10

DQ12

UDQM

DQ8

CKE

CLK

DQ9

DQ13

DQ15

A4

A5

A6

A7

A8

A9

A11

0.1uF

Copyright C 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes

USB DOWN STREAM

SPI_CLK

VOUT

165 164 163 162 161 160 159 158 157 156 155 154 153 152 151 150 149 148 147 146 145 144 143 142

R8184 2.2K USE LG50_60_70 100

6

1

ILIMIT

R733 390
64 63 62 61 60 59 58 57 56 55

COMP1_Pb COMP1_Y COMP1_Pr PC_B PC_G PC_R

3

R8137

R8062 10BIT 4.7K

MUTE_LINE

5

2

R703 5.1K

R708 180

SFCS
ENABLE

R711 R712 R713 R714

75 75 75 75

103 104 105

R734 R735 R736 R737

75 75 75 75
* R732 Video Output Level Referenc

USE LG50_60_70 R8086 R8168 R8169 R8139 R8140

DISP_EN 0 100 100 CEC_C SW_RESET SCL_LED

FAULT/

4

3

OCP_EN

SFDO SFDI SFCLK USB_DP USB_DN

R8063 4.7K

8BIT

109 110 111 112

C745 READY R742 4.7K +3.3VDDP R743 4.7K READY MPEG_RESET

22pF

+3.3V_MULTI_MST C855

RIN0P 0 . 0 4 7 u F AVDD_33_39 GND_40 HSYNC0 VSYNC0

100 READY 100 READY 1K R8142 100

DON T USE(156,157)
MADR[11] RL_ON C883 2.2uF 25V

NOT LG60 R8188 3.3K LED_G

X703 27MHz NON_EU OPTION C746
L719 COMP2_Pb COMP2_Y COMP2_Pr

PC_HS PC_VS R8012 R8017 R8011 R8013 47 47 47 47 R8181 C820 C821 C822 C823 4.7K 0.047uF 1000pF 0.047uF 0.047uF

AR802

MADR[10] MADR[9] MADR[8]

Insert all except LG60:R8188
R8182 LG60 0 +5V_ST_SW

VSYNC2 BIN2P SOGIN2 GIN2P RIN2P C1 Y1

C871 C872

0.1uF 0.1uF MADR[7] MADR[6] AR801 100 MADR[5] MADR[4] MADR[3]

ZORAN I2C strobe ready

RAMADD[0-11] RAMADD[4] RAMADD[3] RAMADD[5] RAMADD[2] RAMADD[6] RAMADD[1] RAMADD[7]

12MHz

118 119 120 121 122

22pF

R739

0 150

DUPRD0

R728

MLF2012A2R7JT000 C755 READY 220pF 50V READY

CVBS_V
SIDE_C SIDE_Y R8041 R8042 47 47

C825 C826

0.047uF 0.047uF

C0 Y0

WEZ CASZ RASZ SBA0

SW800 TMUE312GAB +5V_ST 2 4

LGE Internal Use Only

DDR
+1.8V

L1000 UBW2012-121F C1015 120OHM 0.1uF +1.8V_AVD C1010 47uF16V MAX 1A

C1005 22pF

C1007 22pF

27MHz R1005 1M

R1007 0

VD[0]/SIAD0

20pF C1014

X1000

READY

VSS_2

VD[1]

VD[2]

VD[3]

VD[4]

VD[5]

+2.5V_VDDM_MST
MDATA[0-15]

C1000 0.1uF

48

47

XTI

+3.3V

46

45

44

43

NC_4

MDATA[0-15]

42

41

40

39

38

37

VD[6]

MDATA[0-15]

VSSE_2

XTO

DEC_656[0-7]

IC900 HYB25DC256163CE-4
AR902 56 1/16W
MDATA[8] MDATA[9] MDATA[10] MDATA[11] C903 0.1uF MDATA[12] MDATA[13] MDATA[14] MDATA[15] C902 0.1uF VDD_1 DQ0 VDDQ_1 DQ1 DQ2 VSSQ_1 DQ3 DQ4 VDDQ_2 DQ5 DQ6 VSSQ_2 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 66 65 64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 VSS_3 DQ15 VSSQ_5 DQ14 DQ13 VDDQ_5 DQ12 DQ11 VSSQ_4 DQ10 DQ9 VDDQ_4 DQ8 NC_8 VSSQ_3 UDQS DQS0 NC_7 VREF VSS_2 UDM LDQM CK CK CKE READY R903 150 R905 150 MCLK MCLKZ C907 1000pF C909 0.1uF R906 1K R909 1K C906 0.1uF C908 0.1uF MDATA[3] MDATA[2] MDATA[1] MDATA[0]

VDDE_1
+3.3V

1 2 3 4 5 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24

36 35 34 33 32 30 29 28 27 26 25

VD[7] VD[8] VD[9] VD[10] VDD NC_3 VD[11] VD[12] VD[13] VD[14] VD[15] VDDE_2

AR901 56 1/16W
MDATA[7] MDATA[6] MDATA[5] MDATA[4]

SCL_Part SDA_Part
R1001 4.7K

R1003 R1002

100 100

SCLK SDAT PDN RSTB TMODE NC_1

AR1000 51

C1012 0.01uF

+1.8V_AVD

DEC_656[0-7]

DEC_656[0] DEC_656[1] DEC_656[2] DEC_656[3]

READY

SW_RESET

R1004

100

IC1000

C1001 0.01uF

R1006 4.7K

6 TW9910DANA2-GR 31

+1.8V_AVD

AVD_1
C1003 C1004 0.1uF 0.1uF

AR1001 51

DEC_656[4] DEC_656[5] DEC_656[6] DEC_656[7]

YMUX3 YMUX2 YGND YMUX1

AR903 56 1/16W

C904 0.1uF

DQ7 NC_1 VDDQ_3 LDQS

AR900 56 1/16W

PIP_V
+2.5V_VDDM_MST R1000 75

C1002

0.1uF

DQS1 C905 0.1uF A13/NC_2 VDD_2 NC_3 C900 0.1uF UDQM WE WEZ CAS CASZ RAS RASZ CS NC_4 BA0 SBA0 BA1 SBA1 MADR[10] MADR[0] MADR[1] MADR[11] MADR[10] MADR[9] MADR[8] MADR[7] MADR[6] MADR[5] MADR[4] MADR[3] MADR[2] MADR[1] MADR[0] MADR[0-11] MADR[0-11] MADR[11] MADR[10] MADR[9] MADR[8] MADR[7] MADR[6] MADR[5] MADR[4] MADR[3] MADR[2] MADR[1] MADR[0] C901 0.1uF MADR[2] MADR[3] MADR[10] MADR[0] MADR[1] MADR[2] MADR[3] A10/AP A0 A1 A2 A3 VDD_3 LDM

+3.3V C1011 0.1uF

CIN0

VSS_1

VS

HS

MPOUT

YMUX0

VSSE_1
R1009

AVS_1

AVS_2

NC_2

CLKX2

AVD_2

0.1uF

C1008 0.1uF

NC_6 A12/NC_5 A11 A9 A8 A7 A6 A5 A4 VSS_1 MADR[11] MADR[11] MADR[9] MADR[9] MADR[8] MADR[8] MADR[7] MADR[7] MADR[6] MADR[6] MADR[5] MADR[5] MADR[4] MADR[4]

0.1uF

CKE

51 C1013 10pF
READY

DEC_656_CLK

C1006

C1009

+1.8V_AVD

TW9910

**MULTI ITEM MAIN - QIMONDA : EAN41788501 SUB - HYNIX : EAN31729202

THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION. FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.

THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION. FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.

PPWER
P_16V

LED Block

*PANEL OPTION
R1197 R1122 C1114 R1127 R1183 R1155 R1103 R1185 R1186 R1187 R1104 Sharp 52" O O O X X O X X X X X O AUO O O O X X X X X X X CMO 32/42/47 X X X O X 4.7K 0.47uF O O O X X X X O O CMO 57" X O O 4.7K 0.47uF X Sharp 32" X O X X X X X X X X X the Rest(w/CMO26") O X O X X X X X 4.7K 0.47uF O P_12V

P_5V

PANEL_STATUS

NOT CMO 57" R1127 0 C1114 0.47uF
NOT SHARP 52",AUO

NOT SHARP 32&52",AUO

R1122 4.7K R1197 0 SHARP 52",AUO
R1192 1K

RL_ON I_DIMMING

NOT (CMO 32,42,47,57, SHARP 32") R1183 0 C1116 2.2uF 25V R1191 0 CMO 32,42,47,57 READY R1155 0

16V GND 12V GND 5V 5V GND GND Error out Power ON A.Dim Select

1 3 5 7 9 11 13 15 17 19 21 23
P1100

2 4 6 8 10 12 14 16 18 20 22 24

16V P_16V GND 12V P_12V GND 5V P_5V 5V GND R1125 0 R1126 2.7K AGND ACD Inverter ON R1187 PWM Dim R1132 0 R1104 0 CMO 57" 0 NOT CMO 32,42,47,57 SYNC
READY

+5V_ST

+5V_MULTI

R1189 10K

R1190 1.2K

AC_DET
+5V_ST
R1138 4.7K C B E Q1106 RT1C3904-T112

D1106 SAM2333

R1133 10K

AC_RST

P_16V C1122 0.1uF P_12V

L1106 UBW2012-121F EAM38769505

+16V_NTP C1148 0.1uF C1150 0.01uF

C1121 0.47uF

+5V_ST 0 R1129 10K READY R1196 10K 3 Q1102 2 2SC3875S 1 R1135 10K

+5V_ST R1184 10K

C1137 47uF25V

C1139 0.1uF

*12V AUDIO and PANEL L1112 +12V MBW3216-501TF +12V EAM30764101 C1144 0.01uF

R1105

DISP_EN E_DIMMING
*SHARP 32" : DC DIMMING

P_5V

L1107 C1138 220uF 16V C1140 0.1uF C1146 0.01uF UBW2012-121F R1163 0 C1123 0.1uF

+5V_ST

R1188 0 READY

DC_DIM R1139 1K 1/10W 5%

+5VST_MST

SMAW200-24C

DC_DIM C1125 2.2uF 25VPWM_DIM CMO 32,42,47,57 R1103 0 R1185 0 CMO 32,42,47 R1186 0 CMO 57"
R1139-*1 100 1/10W 5%

P_5V

SWITCH VCC_LCD:12V or 5V 5V:5V_PULLUP,5V_MULTI
V0 = 0.8(R1+R2) / R2

P_5V
0

NOT 32 Sharp UBW2012-121F

IC1100 SC4215ISTRT NC_1 EN
D1102 S2A

+12V
120OHM L1111

2 3 4

7 6 5

ADJ VO NC_3

R1

R1107 5.6K

1

8

GND

R2

+3.3V_MST

120OHM L1110

R1115

32 Sharp UBW2012-121F

+5VST_MST

50V +5VST_MST

VIN C1117 4.7uF C1102 0.1uF NC_2

R1106 18K +3.3V_MULTI_MST
*Applied to SIF,HDMI,ADC,MPLL,AUD

R1140 33K R1141 33K

C1126 1uF 25V S1 C Q1100 RT1C3904-T112 E G1

Q1101 SI4925DY 0TF492509AA 1 2 8 7 6 5 D1_2 D1_1 D2_2 D2_1 L1105 UBW2012-121F C1135 EAM38769505 0.1uF C1141 100uF 16V L1104 UBW2012-121F EAM38769505 C1136 0.1uF R1152 2.2K R1153 2.2K R1154 2.2K
C1134 0.01uF

VCC_LCD
C1149 100uF 16V

C1109 100uF6V 1

C1152 10uF
D1103 MBRS190T3G 90V

IC1103 AZ1117H-ADJTRE1(EH11A) INPUT 3 2 OUTPUT R1166 3.3K 1% 1 ADJ