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LG 50PZ750 Service Manual
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LG 50PZ750 Service Manual

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See also: Owner's Manual , Manual Del Usuario
PLASMA TV
SERVICE MANUAL
CHASSIS : PU12A
MODEL : 50PZ750
CAUTION
BEFORE SERVICING THE CHASSIS,
READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
P/NO : MFL67006103(1103-REV00)
North/Latin America
Europe/Africa
Asia/Oceania
50PZ750-UG
Internal Use Only
http://aic.lgservice.com
http://eic.lgservice.com
http://biz.lgservice.com
Printed in Korea

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Summary of Contents for LG 50PZ750

  • Page 1 Internal Use Only North/Latin America http://aic.lgservice.com Europe/Africa http://eic.lgservice.com Asia/Oceania http://biz.lgservice.com PLASMA TV SERVICE MANUAL CHASSIS : PU12A MODEL : 50PZ750 50PZ750-UG CAUTION BEFORE SERVICING THE CHASSIS, READ THE SAFETY PRECAUTIONS IN THIS MANUAL. Printed in Korea P/NO : MFL67006103(1103-REV00)

  • Page 2: Table Of Contents

    CONTENTS ..........................2 SAFETY PRECAUTIONS ......................3 SPECIFICATION.........................4 ADJUSTMENT INSTRUCTION ....................6 BLOCK DIAGRAM ........................13 EXPLODED VIEW ........................14 CIRCUIT DIAGRAM ........................Copyright ©2011 LG Electronics Inc. All rights reserved. - 2 - LGE Internal Use Only Only for training and service purposes...

  • Page 3: Safety Precautions

    An other abnormality exists that must be corrected before the receiver is returned to the customer. Copyright ©2011 LG Electronics Inc. All rights reserved. - 3 - LGE Internal Use Only Only for training and service purposes...

  • Page 4: Specification

    Model Name Market Remark 50PZ750-UG NORTH AMERICA Safety : UL1492, CSA C22.2.No.1 EMC : FCC Class B, IC Class B Copyright ©2011 LG Electronics Inc. All rights reserved. - 4 - LGE Internal Use Only Only for training and service purposes...

  • Page 5: General Specification

    2) Humidity : ~ 80 % Storage Environment 1) Temp : -20 deg ~ 60 deg 2) Humidity : ~ 85 % Copyright ©2011 LG Electronics Inc. All rights reserved. - 5 - LGE Internal Use Only Only for training and service purposes...

  • Page 6: Adjustment Instruction

    - Ship-out mode setting (In-Stop) 3-3. Etc. - Ship-out mode - Service Option Default - USB Download(S/W Update, Option) Copyright ©2011 LG Electronics Inc. All rights reserved. - 6 - LGE Internal Use Only Only for training and service purposes...
  • Page 7 (2) If Download is successful, OK is displayed. (3) If Download is a failure, NG is displayed. (4) Re-try download Copyright ©2011 LG Electronics Inc. All rights reserved. - 7 - LGE Internal Use Only Only for training and service purposes...
  • Page 8 EDID Block 0, Bytes 0-127 [00H-7FH] Block Type: EDID 1.3 RGB [C/S: 1C] EDID Block 0, Bytes 0-127 [00H-7FH] Block Type: EDID 1.3 Copyright ©2011 LG Electronics Inc. All rights reserved. - 8 - LGE Internal Use Only Only for training and service purposes...
  • Page 9 Adj. menu 7.White Balance, you can select one of 3 options: None, Inner, HDMI. Default is inner. By selecting HDMI, you can adjust using HDMI signal. Copyright ©2011 LG Electronics Inc. All rights reserved. - 9 - LGE Internal Use Only...
  • Page 10 (3) Check ‘OK’ (Sensor DATA 0 ~ 4095, Power Saving Mode 0 ~ 12) * IF you press IN-STAP Button, change Green Eye-check OSD. Copyright ©2011 LG Electronics Inc. All rights reserved. - 10 - LGE Internal Use Only Only for training and service purposes...
  • Page 11 (2) Depending on destination, select KR or US, then on the lower option, select US, CA, MX. Selection is done using +, - KEY Copyright ©2011 LG Electronics Inc. All rights reserved. - 11 - LGE Internal Use Only Only for training and service purposes...
  • Page 12 60PZ950-UA 32781 7519 7560 14921 50PZ570-UG 32793 7519 7560 14921 60PZ570-UG 32797 7519 7560 14921 4. Completed selecting Tool option. Copyright ©2011 LG Electronics Inc. All rights reserved. - 12 - LGE Internal Use Only Only for training and service purposes...

  • Page 13: Block Diagram

    BLOCK DIAGRAM Copyright ©2011 LG Electronics Inc. All rights reserved. - 13 - LGE Internal Use Only Only for training and service purposes...

  • Page 14: Exploded View

    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.
  • Page 15 ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. MAIN & NAND FLASH Copyright © 2011 LG Electronics Inc. All rights reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 16 ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. MAIN POWER Copyright © 2011 LG Electronics Inc. All rights reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 17 ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. MAIN AUDIO/VIDEO Copyright © 2011 LG Electronics Inc. All rights reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 18 ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. MAIN DDR Copyright © 2011 LG Electronics Inc. All rights reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 19 BCM35230 ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. POWER Copyright © 2011 LG Electronics Inc. All rights reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 20 BCM35230 ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. MICOM Copyright © 2011 LG Electronics Inc. All rights reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 21 BCM35230 ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. HDMI Copyright © 2011 LG Electronics Inc. All rights reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 22 ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. COMMON JACK Copyright © 2011 LG Electronics Inc. All rights reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 23 BCM35230 ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. IR/KEY Copyright © 2011 LG Electronics Inc. All rights reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 24 BCM35230 ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. WIRELESS Copyright © 2011 LG Electronics Inc. All rights reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 25 BCM35230 ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR COMP/AV THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. Copyright © 2011 LG Electronics Inc. All rights reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 26 FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS BCM35230 ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. Copyright © 2011 LG Electronics Inc. All rights reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 27 BCM35230 ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR M_REMOCON THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. Copyright © 2011 LG Electronics Inc. All rights reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 28 BCM35230 ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR ETHERNET THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. Copyright © 2011 LG Electronics Inc. All rights reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 29 BCM35230 ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. LVDS Copyright © 2011 LG Electronics Inc. All rights reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 30 ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. AUDIO AUDIO[STM] Copyright © 2011 LG Electronics Inc. All rights reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 31 ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR TUNER DUAL THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. Copyright © 2011 LG Electronics Inc. All rights reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 32 BCM35230 ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR GCHB THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. Copyright © 2011 LG Electronics Inc. All rights reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 33 ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR ATSC demod THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. Copyright © 2011 LG Electronics Inc. All rights reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 34 BCM35230 ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. 3D_ASIC Copyright © 2011 LG Electronics Inc. All rights reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 35 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 © 2011 LG Electronics Inc. All rights reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 37 Great Company Great People BBTV (PU12A) Training manual BBTV (PU12A) Training manual Contents - Block Diagram - Power Flow Diagram - Trouble Shooting Guide PDP ATSC Gr. LEE SUNG KEU 2010.12.17 Great Company Great People...
  • Page 38 Trouble Shooting Guide for LG Service Man Trouble Shooting Guide for LG Service Man Great Company Great People 5/39...
  • Page 39 SET Layout Z Board Power Board Y Board ASIC Main X board Emitter 50PZ950-UA model image 50PX950-UA model block diagram Point 1. 3D RF emitter sub Assy and wafer - 3D RF emitter make 3D sync for 3D Active glasses - RF emitter signal form ASIC to Main board and it connect to RF emitter Assy through 12pin wafer on Main board Great Company Great People...
  • Page 40 SET Layout Z Board Power Board Y Board ASIC Main X board Emitter 60PZ950-UA model image 50PX950-UA model block diagram Point 1. 3D RF emitter sub Assy and wafer - 3D RF emitter make 3D sync for 3D Active glasses - RF emitter signal form ASIC to Main board and it connect to RF emitter Assy through 12pin wafer on Main board Great Company Great People...
  • Page 41 Main board (GP3) Power 18pin Speaker 4pin LVDS 80P HDMI 4 BCM35230 HDMI 3 HDMI 2 HDMI 1 IR/Control RS232 wireless Side AV Tuner RF Emitter Rear AV Component Main board for 3D block diagram SPDIF GP3 Main board PC Audio Great Company Great People...
  • Page 42 1. GP3_BCM_PDP Block Diagram (Front-end) (System + Scalar) NAND DDR3 X-TAL NAND DDR3 X-TAL 8Gbit 54MHz 8Gbit 54MHz ATSC/ NTSC CVBS1/ SANYO SIF_LIVE 1080P CVBS1,2 UDA55AL LVDS L/R Indicator LR1,2 GPIO77 COMP_LR1,2 ATSC/ NTSC CVBS1/ BCM_SPDIF RGB_LR LGIT SPDIF SIF_LIVE TDSB-H001F LGE35230 LGE35230...
  • Page 43 2. 3DF Block Diagram RF_Shutter_Glasses DDR2 X-tal Serial_Flash RF_Tx (256Mbit) (25MHz) (2Mbit) RF_Tx 3D_GPIO 3D_SYNC_OUT 3D_SYNC EMITTER_PULSE LVDS 2Ch Left (2D): 1920x1080/60Hz I2C_M 3DF_ASIC 3DF_ASIC L/R DETECT GPIO[2] BCM35230 BCM35230 LG8300 LG8300 3DF_ASIC RESET PO_RST_N LVDS 2Ch LVDS 2Ch Right : 1920x1080 3D : 1920x1080/60Hz...
  • Page 44 Power-Up Boot Fail Trouble Shooting NTSC/ATSC X-tal Serial_Flash DDR2 TUNER X-tal NAND Flash DDR3 (2GB) (256Mbit) (25MHz) (2Mbit) (54MHz) (8GB) TDVJ-H101F IF waveform LVDS 2Ch CVBS Left (2D): 3DF_ASIC HD/SD 3DF_ASIC Buffer Buffer 1920x1080/60Hz Video LG8300 LG8300 LVDS 2Ch MAIN IF Encoder CVBS(ATV) Right(2D) :...
  • Page 45 Power-Up Boot Fail Trouble Shooting Check Power connector Check P500 All Replace Power board OK ? Voltage Level (ST_5V) Check L501 (pin3) Output Replace L501 Voltage Level (P_5V) Check IC501(pin8) Replace IC501 Voltage Level 0.9V Check IC502 (pin2) Replace IC502 Voltage Level 2.5V Replace IC101 Great Company Great People...
  • Page 46 No OSD Trouble Shooting NTSC/ATSC X-tal Serial_Flash DDR2 TUNER X-tal NAND Flash DDR3 (2GB) (256Mbit) (25MHz) (2Mbit) (54MHz) (8GB) TDVJ-H101F IF waveform LVDS 2Ch CVBS Left (2D): 3DF_ASIC HD/SD 3DF_ASIC Buffer Buffer 1920x1080/60Hz Video LG8300 LG8300 LVDS 2Ch MAIN IF Encoder CVBS(ATV) Right(2D) :...
  • Page 47 No OSD Trouble Shooting Check P400 Check GPIO Path of IC701 5V_ON Check SMPS Vs,Va, 5V,17V Replace Power Board Check IC #62(TXAC1-) , #61(TXAC1+) , Maybe BCM has problems #46(TXAC2-) , #45(TXAC2+), Replace IC3202 #30(TXAC3-) ,#29(TXAC3+) ,#14(TXB4-) , #13(TXBC4+) Check LVDS Cable for damage or Replace Cable open conductors.
  • Page 48 No OSD Trouble Shooting (Module Power Sequence) < 50R3 > Great Company Great People 12/39...
  • Page 49 Module Control Trouble Shooting “TILT” on Adjust Remocon Check SMPS & cable PDP Module Power is OK? : PDP internal pattern displays? Replace PDP Module PDP Module is OK. Check Signal Check P902 SCL,SDA line SCL,SDA Replace X3200 : X3200 output line R3230, R3202 <...
  • Page 50 Digital TV Video Trouble Shooting NTSC/ATSC X-tal Serial_Flash DDR2 TUNER X-tal NAND Flash DDR3 (2GB) (256Mbit) (25MHz) (2Mbit) (54MHz) (8GB) TDVJ-H101F IF waveform LVDS 2Ch CVBS Left (2D): 3DF_ASIC HD/SD 3DF_ASIC Buffer Buffer 1920x1080/60Hz Video LG8300 LG8300 LVDS 2Ch MAIN IF Encoder CVBS(ATV) Right(2D) :...
  • Page 51 Digital TV Video Trouble Shooting Check RF Cable Check Tuner 5V,7V Power Replace IC500 or IC506 IC500(7V),IC506(5V) Maybe Tuner has problems Check IF_P,IF_N (TU2103) : Replace Tuner R17, P18 Check IC #62(TXAC1-) , #61(TXAC1+) , Maybe BCM has problems #46(TXAC2-) , #45(TXAC2+), Replace IC3202 #30(TXAC3-) ,#29(TXAC3+) ,#14(TXB4-) , #13(TXBC4+)
  • Page 52 Analog TV Video Trouble Shooting NTSC/ATSC X-tal Serial_Flash DDR2 TUNER X-tal NAND Flash DDR3 (2GB) (256Mbit) (25MHz) (2Mbit) (54MHz) (8GB) TDVJ-H101F IF waveform LVDS 2Ch CVBS Left (2D): 3DF_ASIC HD/SD 3DF_ASIC Buffer Buffer 1920x1080/60Hz Video LG8300 LG8300 LVDS 2Ch MAIN IF Encoder CVBS(ATV) Right(2D) :...
  • Page 53 Analog TV Video Trouble Shooting Check RF Cable Check Tuner 5V,7V Power Replace IC500 or IC506 IC500(7V),IC506(5V) Check CVBS signal Replace Tuner(TU2103) TU2103 #11 Pin Replace BCM35230(IC101) < CVBS waveform – sample > - Defend on the input signal. Great Company Great People 17/39...
  • Page 54 Component Video Trouble Shooting NTSC/ATSC X-tal Serial_Flash DDR2 TUNER X-tal NAND Flash DDR3 (2GB) (256Mbit) (25MHz) (2Mbit) (54MHz) (8GB) TDVJ-H101F IF waveform LVDS 2Ch CVBS Left (2D): 3DF_ASIC HD/SD 3DF_ASIC Buffer Buffer 1920x1080/60Hz Video LG8300 LG8300 LVDS 2Ch MAIN IF Encoder CVBS(ATV) Right(2D) :...
  • Page 55 Component Video Trouble Shooting Check input signal format Is it supported? Check Component Cable Check the damage of JK1100 Check signal And Replace Connector L1108~L1113 ※ Measured signals depend on the input signal. Replace BCM35230(IC101) Great Company Great People 19/39...
  • Page 56 RGB Video Trouble Shooting NTSC/ATSC X-tal Serial_Flash DDR2 TUNER X-tal NAND Flash DDR3 (2GB) (256Mbit) (25MHz) (2Mbit) (54MHz) (8GB) TDVJ-H101F IF waveform LVDS 2Ch CVBS Left (2D): 3DF_ASIC HD/SD 3DF_ASIC Buffer Buffer 1920x1080/60Hz Video LG8300 LG8300 LVDS 2Ch MAIN IF Encoder CVBS(ATV) Right(2D) :...
  • Page 57 RGB Video Trouble Shooting Check input signal format Is it supported? Check RGB Cable conductors for damage Replace connector (P801). Check P801 Check signal, Hsync, Vsync Replace R801,R802 R801, R802 Check signal Replace L803,L804,L805 L803,L804,L805 ※ Measured signals depend on the input signal. Replace BCM35230 Great Company Great People 21/39...
  • Page 58 AV Video Trouble Shooting NTSC/ATSC X-tal Serial_Flash DDR2 TUNER X-tal NAND Flash DDR3 (2GB) (256Mbit) (25MHz) (2Mbit) (54MHz) (8GB) TDVJ-H101F IF waveform LVDS 2Ch CVBS Left (2D): 3DF_ASIC HD/SD 3DF_ASIC Buffer Buffer 1920x1080/60Hz Video LG8300 LG8300 LVDS 2Ch MAIN IF Encoder CVBS(ATV) Right(2D) :...
  • Page 59 AV Video Trouble Shooting Check input signal format Is it supported? Check AV Cable / S-Video Cable for damage or open conductors Check AV port of JK1100 (Rear) Replace or reseat connector Check JK1101 (Side) Check signal Replace Resistor R1115(Rear AV), R1142 (Side AV) Replace BCM35230(IC101) ※...
  • Page 60 HDMI Video Trouble Shooting NTSC/ATSC X-tal Serial_Flash DDR2 TUNER X-tal NAND Flash DDR3 (2GB) (256Mbit) (25MHz) (2Mbit) (54MHz) (8GB) TDVJ-H101F IF waveform LVDS 2Ch CVBS Left (2D): 3DF_ASIC HD/SD 3DF_ASIC Buffer Buffer 1920x1080/60Hz Video LG8300 LG8300 LVDS 2Ch MAIN IF Encoder CVBS(ATV) Right(2D) :...
  • Page 61 HDMI Video Trouble Shooting Check input signal format Is it supported? Check HDMI Cable for damage or open conductors Check JK701~JK703 for proper Replace connector connection or damage Check EDID EDID D/L SVC REMOTCONTROL Check HDMI SW(IC700) Replace IC700 Power(R522) & I2C Signal(R752/3) Replace BCM35230(IC101) Great Company Great People 25/39...
  • Page 62 All Source Audio Trouble Shooting NTSC/ATSC X-tal Serial_Flash DDR2 TUNER X-tal NAND Flash DDR3 (2GB) (256Mbit) (25MHz) (2Mbit) (54MHz) (8GB) TDVJ-H101F IF waveform LVDS 2Ch CVBS Left (2D): 3DF_ASIC HD/SD 3DF_ASIC Buffer Buffer 1920x1080/60Hz Video LG8300 LG8300 LVDS 2Ch MAIN IF Encoder CVBS(ATV) Right(2D) :...
  • Page 63 All Source Audio Trouble Shooting Make sure you can’t hear any audio Check BCM I2S Output Replace IC501. R1605~R1608 Check Power Replace 17V(L1604), 3.3V(L1605) 17V(L1604), 3.3V(L1605) Check IC16000 Status Replace IC1600 /PDN(#23), /Reset(#30) is High? Check Signal (PWM) Replace L1600~L1603 L1600~L1603 Check Connector Replace P1600...
  • Page 64 Digital TV Audio Trouble Shooting NTSC/ATSC X-tal Serial_Flash DDR2 TUNER X-tal NAND Flash DDR3 (2GB) (256Mbit) (25MHz) (2Mbit) (54MHz) (8GB) TDVJ-H101F IF waveform LVDS 2Ch CVBS Left (2D): 3DF_ASIC HD/SD 3DF_ASIC Buffer Buffer 1920x1080/60Hz Video LG8300 LG8300 LVDS 2Ch MAIN IF Encoder CVBS(ATV) Right(2D) :...
  • Page 65 Digital TV Audio Trouble Shooting Follow procedure digital TV video Check video output trouble shooting (on page 15) Follow procedure All source audio trouble Replace BCM35230 (IC101) shooting (on page 27) Great Company Great People 29/39...
  • Page 66 Analog TV Audio Trouble Shooting NTSC/ATSC X-tal Serial_Flash DDR2 TUNER X-tal NAND Flash DDR3 (2GB) (256Mbit) (25MHz) (2Mbit) (54MHz) (8GB) TDVJ-H101F IF waveform LVDS 2Ch CVBS Left (2D): 3DF_ASIC HD/SD 3DF_ASIC Buffer Buffer 1920x1080/60Hz Video LG8300 LG8300 LVDS 2Ch MAIN IF Encoder CVBS(ATV) Right(2D) :...
  • Page 67 Analog TV Audio Trouble Shooting Follow procedure analog TV video Check video output trouble shooting (on page 15) Check TU2103 (pin3) for 5V Replace IC500 or IC506 Check SIF signal (TU2103 #9) Replace Tuner Check SIF signal (R2138) Check SIF line Follow procedure All source audio trouble <...
  • Page 68 Component / RGB / AV Audio Trouble Shooting NTSC/ATSC X-tal Serial_Flash DDR2 TUNER X-tal NAND Flash DDR3 (2GB) (256Mbit) (25MHz) (2Mbit) (54MHz) (8GB) TDVJ-H101F IF waveform LVDS 2Ch CVBS Left (2D): 3DF_ASIC HD/SD 3DF_ASIC Buffer Buffer 1920x1080/60Hz Video LG8300 LG8300 LVDS 2Ch MAIN IF Encoder...
  • Page 69 Component / RGB / AV Audio Trouble Shooting Check Connector and cables Replace connector or cable if JK1100 (Component, AV Rear) P801 (RGB) found damaged JK1101 (AV Side) Check signal L1100 / L1107 (Component1) L1103 / L1104 (Component2) Replace the Resistor R801 / R802 (RGB) R1105 / R1106 (AV Rear) R1101 / R1102 (AV Side)
  • Page 70 HDMI Audio Trouble Shooting NTSC/ATSC X-tal Serial_Flash DDR2 TUNER X-tal NAND Flash DDR3 (2GB) (256Mbit) (25MHz) (2Mbit) (54MHz) (8GB) TDVJ-H101F IF waveform LVDS 2Ch CVBS Left (2D): 3DF_ASIC HD/SD 3DF_ASIC Buffer Buffer 1920x1080/60Hz Video LG8300 LG8300 LVDS 2Ch MAIN IF Encoder CVBS(ATV) Right(2D) :...
  • Page 71 HDMI Audio Trouble Shooting Re-download EDID data. Check EDID Follow procedure All source audio trouble shooting (on page 27) Great Company Great People 35/39...
  • Page 72 OPTIC Audio Out Trouble Shooting NTSC/ATSC X-tal Serial_Flash DDR2 TUNER X-tal NAND Flash DDR3 (2GB) (256Mbit) (25MHz) (2Mbit) (54MHz) (8GB) TDVJ-H101F IF waveform LVDS 2Ch CVBS Left (2D): 3DF_ASIC HD/SD 3DF_ASIC Buffer Buffer 1920x1080/60Hz Video LG8300 LG8300 LVDS 2Ch MAIN IF Encoder CVBS(ATV) Right(2D) :...
  • Page 73 OPTIC Audio Out Trouble Shooting Replace BCM35230 (IC101) Check SPDIF signal (R803) Check Signal (JK802 #3) Replace JK802 < SPDIF waveform – sample > - Defend on the input signal. Great Company Great People 37/39...
  • Page 74 USB Trouble Shooting NTSC/ATSC X-tal Serial_Flash DDR2 TUNER X-tal NAND Flash DDR3 (2GB) (256Mbit) (25MHz) (2Mbit) (54MHz) (8GB) TDVJ-H101F IF waveform LVDS 2Ch CVBS Left (2D): 3DF_ASIC HD/SD 3DF_ASIC Buffer Buffer 1920x1080/60Hz Video LG8300 LG8300 LVDS 2Ch MAIN IF Encoder CVBS(ATV) Right(2D) : 1920x1080/60Hz...
  • Page 75 USB Trouble Shooting Check USB 2.0 Cable for damage or open conductors Check IC1200/1 voltage level 5V Replace IC 1200 ,IC1201 (L1200/L12010) Check P1200,P1201 Replace P1200,P1201 Replace BCM35230 (IC101) • Exception - USB power could be disabled by inrushing current - In this case, remove the device and try to reboot the TV (AC power off/on) Great Company Great People 39/39...

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