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

LG Electronics 42LP360H/361H-ZA, 42LN548C Copyright, LG Electronics. Inc. All rights reserved

Models: 42LN548C 42LP360H 361H-ZA 42LN548C/549C-ZA

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CONTENTS

CONTENTS	2
SAFETY PRECAUTIONS	3
SERVICING PRECAUTIONS	4
SPECIFICATION	6
ADJUSTMENT INSTRUCTION	10
TROUBLE SHOOTING GUIDE	16
BLOCK DIAGRAM	21
EXPLODED VIEW	22
SCHEMATIC CIRCUIT DIAGRAM

Copyright ©	LG Electronics. Inc. All rights reserved.	- 2 -	LGE Internal Use Only
Only for training and service purposes

Page 2

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LG Electronics 42LP360H/361H-ZA, 42LN548C/549C Copyright, LG Electronics. Inc. All rights reserved, LGE Internal Use Only

Contents

LED TV SERVICE MANUALREAD THE SAFETY PRECAUTIONS IN THIS MANUAL MODEL 42LP360H/361H 42LN548C/549CLG Electronics. Inc. All rights reserved Only for training and service purposesCopyright LGE Internal Use OnlyBefore returning the receiver to the customer SAFETY PRECAUTIONSGeneral Guidance Leakage Current Cold CheckAntenna Cold CheckSERVICING PRECAUTIONS Electrostatically Sensitive ES DevicesSmall-Signal Discrete Transistor Removal/Replacement IC Remove/ReplacementReplacement Removal1. Application range SPECIFICATION4. Model General Specification 3. Test methodOnly for training and service purposes SpecificationSymbolrate 4.0Msymbols/s to 7.2Msymbols/s Remarks5.2. RGB Input PC - HD Model 5. Video resolutions 2D5.1. Component Input Y, CB/PB, CR/PR 5.3. RGB Input PC - FHD Model5.3. HDMI InputPC/DTV PCDVI2. Designation ADJUSTMENT INSTRUCTION1. Application Range 3. Main PCB check process3.2. EDID Download After downloading, have to adjust Tool Option again3.1. ADC Process 3.3. EDID data3.4 Function Check 4. Total Assembly line process4.1. White Balance adjustment 6.1. Signal Table 5. GND and HI-POT Test6. Model name & Serial number D/L 4.5. Outgoing condition Configuration7.1. Communication Prot connection 7. CI+ key download6.3. Method & notice 7.2. CI+ Key Download8.2. IR OUT 8. Check Commercial Features8.1. External speaker8OHM, 1W, Single-End 2. Digital TV Video TROUBLE SHOOTING GUIDE1. Check the booting Voltage Only for training and service purposesOnly for training and service purposes 3. Analog TV Video4. AV Video CopyrightOnly for training and service purposes 5. RGB Video6. HDMI Video CopyrightOnly for training and service purposes 7. Audio of All iput8. TV Audio CopyrightOnly for training and service purposes 9. AV Audio10. RGB Audio CopyrightTuner DVB- T/C BLOCK DIAGRAMS7LR2 LGE211A-T8 Copyright EXPLODED VIEWOnly for training and service purposes LG Electronics. Inc. All rights reserved2012 . 11 Only for training and service purposes2013 S7LR2 Copyright 2013 LG Electronics. Inc. All rights reservedOnly for training and service purposes SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATESFILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS VDDC+1.5VDDR FROM LIPS & POWER B/DPowerDET +3.3VNormal780 mAIC501 NTP-7500LTHE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATESSPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION Only for training and service purposes30Pin LVDS Connector LVDS51Pin LVDS Connector For FHD 60Hz Only for training and service purposesHDMI1 Only for training and service purposesHDMI EEPROM HDMI22012 . 11 RS232C2013 S7LR2 RS - 232CRGB PC Only for training and service purposesHEADPHONE SIDE USB2013 S7LR2 Only for training and service purposesS7LRDIVXMS10 2012 . 11THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATESSPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION Only for training and service purposesFILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATESSPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETICOnly for training and service purposes EXTSPEAKERAMPSPEAKER OUT JACK 2013 S7LR2CI Region Only for training and service purposesCI POWER ENABLE CONTROL Option name of this page CI SLOT because of Hong KongTU2602 GP4RGLOBALTUNERBLOCKOnly for training and service purposes TU2603

Copyright ©

LG Electronics. Inc. All rights reserved.

LGE Internal Use Only

Only for training and service purposes