Manuals / LG Electronics / TV and Video / Flat Panel Television

LG Electronics service manual Led Tv, Service Manual, MODEL 55LA625C 55LA625C-ZA

Models: 55LA625C-ZA

1 38

Page 1

		Internal Use Only
North/Latin America	http://aic.lgservice.com
Europe/Africa	http://eic.lgservice.com
Asia/Oceania	http://biz.lgservice.com

LED TV

SERVICE MANUAL

CHASSIS : LD3AC

MODEL: 55LA625C 55LA625C-ZA

CAUTION

BEFORE SERVICING THE CHASSIS,

READ THE SAFETY PRECAUTIONS IN THIS MANUAL.

P/NO : MFL67800113(1309-REV00)	Printed in Korea

Page 1

Image 1

LG Electronics service manual Led Tv, Service Manual, MODEL 55LA625C 55LA625C-ZA, Internal Use Only

Contents

READ THE SAFETY PRECAUTIONS IN THIS MANUAL SERVICE MANUALLED TV MODEL 55LA625C 55LA625C-ZACopyright Only for training and service purposesLG Electronics. Inc. All rights reserved LGE Internal Use OnlyGeneral Guidance SAFETY PRECAUTIONSBefore returning the receiver to the customer Leakage Current Cold CheckAntenna Cold CheckElectrostatically Sensitive ES Devices SERVICING PRECAUTIONSReplacement IC Remove/ReplacementSmall-Signal Discrete Transistor Removal/Replacement Removal4. Model General Specification SPECIFICATION1. Application range 3. Test methodSymbolrate 4.0Msymbols/s to 7.2Msymbols/s SpecificationInteractive mode support Only for training and service purposes5.1. Component Input Y, CB/PB, CR/PR 5. Video resolutions 2D5.2. RGB Input PC - HD Model 5.3. RGB Input PC - FHD ModelPCDVI 5.3. HDMI InputPC/DTV1. Application Range ADJUSTMENT INSTRUCTION2. Designation 3. Main PCB check process3.1. ADC Process After downloading, have to adjust Tool Option again3.2. EDID Download 3.3. EDID data4.1. White Balance adjustment 4. Total Assembly line process3.4 Function Check 6. Model name & Serial number D/L 5. GND and HI-POT Test6.1. Signal Table 4.5. Outgoing condition Configuration6.3. Method & notice 7. CI+ key download7.1. Communication Prot connection 7.2. CI+ Key Download8.1. External speaker8OHM, 1W, Single-End 8. Check Commercial Features8.2. IR OUT 1. Check the booting Voltage TROUBLE SHOOTING GUIDE2. Digital TV Video Only for training and service purposes4. AV Video 3. Analog TV VideoOnly for training and service purposes Copyright6. HDMI Video 5. RGB VideoOnly for training and service purposes Copyright8. TV Audio 7. Audio of All iputOnly for training and service purposes Copyright10. RGB Audio 9. AV AudioOnly for training and service purposes CopyrightS7LR2 LGE211A-T8 BLOCK DIAGRAMTuner DVB- T/C EXPLODED VIEW 2013 S7LR2 Only for training and service purposes2012 . 11 Copyright 2013 LG Electronics. Inc. All rights reservedFILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATESOnly for training and service purposes VDDCPowerDET FROM LIPS & POWER B/D+1.5VDDR +3.3VNormal780 mANTP-7500L IC501SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATESTHE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC Only for training and service purposes51Pin LVDS Connector For FHD 60Hz LVDS30Pin LVDS Connector Only for training and service purposesHDMI EEPROM Only for training and service purposesHDMI1 HDMI22013 S7LR2 RS232C2012 . 11 RS - 232CHEADPHONE Only for training and service purposesRGB PC SIDE USBS7LRDIVXMS10 Only for training and service purposes2013 S7LR2 2012 . 11SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATESTHE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC Only for training and service purposesSPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATESFILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETICSPEAKER OUT JACK EXTSPEAKERAMPOnly for training and service purposes 2013 S7LR2CI POWER ENABLE CONTROL Only for training and service purposesCI Region Option name of this page CI SLOT because of Hong KongOnly for training and service purposes GP4RGLOBALTUNERBLOCKTU2602 TU2603