LG 32LH7000 Manual — Free PDF Download

Page 2 - LGE Internal Use Only; CONTENTS

LGE Internal Use Only Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes - 2 - CONTENTS CONTENTS .............................................................................................. 2 PRODUCT SAFETY ................................................

Page 3 - SAFETY PRECAUTIONS; General Guidance; isolation Transformer should always be used; Before returning the receiver to the customer,; AC leakage current check; Leakage Current Cold Check(Antenna Cold Check); Do not use a line Isolation Transformer during this check.; Leakage Current Hot Check circuit; When 25A is impressed between Earth and 2nd Ground; IMPORTANT SAFETY NOTICE

LGE Internal Use Only Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes - 3 - SAFETY PRECAUTIONS Many electrical and mechanical parts in this chassis have special safety-related characteristics. These parts are identified by in theSchematic Diagram and ...

Page 4 - SERVICING PRECAUTIONS

LGE Internal Use Only Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes - 4 - CAUTION: Before servicing receivers covered by this servicemanual and its supplements and addenda, read and follow the SAFETY PRECAUTIONS on page 3 of this publication. NOTE: ...

Page 5 - IC Remove/Replacement; Removal; Diode Removal/Replacement; At IC Connections

LGE Internal Use Only Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes - 5 - IC Remove/Replacement Some chassis circuit boards have slotted holes (oblong) throughwhich the IC leads are inserted and then bent flat against thecircuit foil. When holes are...

Page 6 - SPECIFICATION; General specification

LGE Internal Use Only Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes - 6 - SPECIFICATION NOTE : Specifications and others are subject to change without notice for improvement. 4. General specification 1. Application range This specification is applie...

Page 10 - ADJUSTMENT INSTRUCTION; Main PCB check process; filexxx.bin

LGE Internal Use Only Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes - 10 - ADJUSTMENT INSTRUCTION 1. Application Range This specification sheet is applied to all of the LCD TV withLD91D chassis. 2. Designation 1 ) T h e a d j u s t m e n t i s a c c...

Page 11 - Total Assembly line process

4) Updating is staring. 5) Fishing the version uploading, you have to put USB stick and “AC Power” off. 6) After putting “AC Power” on and check updated version on your TV. * If downloading version is more high than your TV have, TVcan lost all channel data. In this case, you have tochannel recover....

Page 13 - * Detail EDID Options are below; MODEL MODEL NAME(HEX); DVI-D to HDMI or HDMI to HDMI; INPUT

* Edid data and Model option download (RS232) - Manual Download * Caution Use the proper signal cable for EDID Download- Analog EDID : Pin3 exists- Digital EDID : Pin3 exists (1) Analog Data 128Byte (2Bi) (2) DIGITAL DATA(HDMI-1/2/3/4) 256Byte * Detail EDID Options are below ⓐ Product ID ⓑ Serial No...

Page 15 - TROUBLESHOOTING; DTV doesn’t display

LGE Internal Use Only Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes - 15 - 1. TV/CATV doesn’t display TROUBLESHOOTING 2. DTV doesn’t display Ch eck th e o u tp u t d ata o f IC104 in th e Jack Bo ard Pin 52. Can yo u see t h e n o rmal sign al? NO C...

Page 16 - Component doesn’t display

LGE Internal Use Only Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes - 16 - 3. AV 1/2 doesn’t display Ch eck JK 200, JK20 1 Can yo u see t h e n o rmal w av efo rm? NO JK20 0, JK20 1 ma y h ave p r o b lem. Rep l ace th is Jack. Ch eck th e o u t p u...

Page 17 - RGB PC doesn’t display

LGE Internal Use Only Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes - 17 - 5. RGB PC doesn’t display Ch eck P30 0 , Can yo u see t h e n o rmal w av efo rm? NO JP300 ma y h ave p r o b lem. Rep l ace th is Jack. Ch eck th e in pu t o f RGB Au d i o ...

Page 18 - HDMI doesn’t display

- 18 - LGE Internal Use Only Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes 6. HDMI doesn’t display Check input c onnect JK600, JK601, JK602, JK60 3 Can yo u see t h e n o rmal w av efo rm? Ch eck DD C c o mmu n i cation lin es(IC600, IC601) Ch eck t...

Page 19 - BLOCK DIAGRAM

LGE Internal Use Only Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes - 19 - BLOCK DIAGRAM RGB COMPONENT F-SCART AV3 CLK,ERR,SYN,DATA[0] CVBS, Y/C DDR2 SDRAM (256MB) IC300 NAND Flash HYNIX IC402 URSA_C/D[10bit] USB Digital amp (NTP3100) IC701 YPbPr CV...

Page 20 - EXPLODED VIEW

- 20 - LGE Internal Use Only Copyright LG Electronics. Inc. All right reserved. Only for training and service purposes 300 200 400 530 540 820 550 830 570 A5 801 805 804 803 802 806 900 910 120 560 122 123 301 310 500 580 A10 A2 510 EXPLODED VIEW Many electrical and mechanical parts in this chassis ...

Page 21 - SCHEMATIC DIAGRAM

ISP_TXD EEPROM_SDA USB_DM USB_DP FE_TUNER_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...

Page 24 - USB; Audio Out Amp

+5V_ST VGA_EEPROM_WP ENKMC2838-T112 D400 A1 C A2 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 COMPONE...

Page 33 - AV

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. DSUB_B 0...

Page 35 - Printed in Korea

Feb., 2009 Printed in Korea P/NO : MFL58858405 Downloaded From TV-Manual.com Manuals