LG 32LN5400 - Exchange the Module

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Appendix : Exchange the Module (1)

Panel Mura, Light leakage

Press damage

Crosstalk

Crosstalk

Press damage

Panel Mura, Light leakage

Press damage

Un-repairable Cases

In this case please exchange the module.

Copyright ⓒ 2012 LG Electronics. Inc. All right reserved.

Only for training and service purposes

LGE Internal Use Only

Table of Contents

Service Manual1
Contents2
Safety Precautions3
Important Safety Notice3
General Guidance3
Leakage Current Hot Check Circuit3
Servicing Precautions4
Power Output, Transistor Device Removal/Replacement5
Diode Removal/Replacement5
"Small-Signal" Discrete Transistor Removal/Replacement5
IC Remove/Replacement5
Application Range6
Test Condition6
Test Method6
General Specification6
External Input Support Format8
Component Input(Y, CB/PB, CR/PR)8
HDMI Input (PC/DTV)9
Adjustment Instruction10
- Designation10
- Main Pcb Check Process10
- Total Assembly Line Process12
- Adjustment Preparation12
- DPM Operation Confirmation14
- DDC EDID Write (HDMI 256Byte)14
- Edid Data14
- Local Dimming Function Check17
- Outgoing Condition Configuration17
- GND & Hi-Pot Test17
- GND & HI-POT Auto-Check17
- 3D Function Test (Only 3D Model)18
Block Diagram19
Exploded View20
- TP for NON-EU Models(Except EU and China)21
- L13 Power Block22
- IR/LED and Control23
- Lvds (Non Eu)27
- GLOBAL Tuner Block Except EU and China30
- Ethernet33
- Audio Amp(Sta380Bwef)34
- Mstart Debug_4Pin35
- Rs-232C36
- Contents of LCD TV Standard Repair Process40
- Contents of LCD TV Standard Repair Process Detail Technical Manual41
- Standard Repair Process42
- Video Error42
- No Video/ Normal Audio42
- No Video/ no Audio43
- Picture Broken/ Freezing44
- Tuning Fail, Picture Broken/ Freezing45
- Color Error46
- Vertical / Horizontal Bar, Residual Image, Light Spot, External Device Color Error47
- Power Error48
- No Power48
- Off When On, off While Viewing, Power Auto On/Off49
- No Audio/ Normal Video50
- Wrecked Audio/Discontinuation/Noise51
- Remote Control & Local Switch Checking52
- External Device Recognition Error53
- Circuit Noise, Mechanical Noise54
- Exterior Defect55
- Check Back Light on with Naked Eye57
- Inverter B+ 24V Measuring Method58
- Check White Balance Value59
- Power Board Voltage Measuring Method60
- Video Error_No Video/ Audio60
- TUNER Input Signal Strength Checking Method61
- Video Error_Video Error, Video Lag/Stop61
- LCD-TV Version Checking Method62
- LCD TV Connection Diagram (1)63
- Check and Replace Link Cable(LVDS) and Contact Condition64
- Adjustment Test Pattern - ADJ Key65
- Exchange T-Con Board66
- Exchange PSU(LED Driver)68
- Exchange the Module69
- Check Front Display LED71
- Standard Repair Process Detail Technical Manual71
- Power Error _No Power71
- Check Power Input Voltage and ST-BY 3.5V72
- Checking Method When Power Is on73
- Power Error_Off When On, off Whiling Viewing74
- POWER off MODE Checking Method74
- Audio Error_No Audio/Normal Video75
- Checking Method in Menu When There Is no Audio75
- Voltage and Speaker Checking Method When There Is no Audio76
- Remote Controller Operation Checking Method77

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