Table Of Contents - LG 42LH20 Service Manual

Table Of Contents

Overview Of Topics To Be Discussed3
Important Safety Notice4
Esd Notice5
Regulatory Information5
Contact Information6
Basic Troubleshooting Steps8
42Lh20 Product Information9
Key Features10
Remote Control Familiarization13
Disassembly And Troubleshooting Section18
Troubleshooting18
Circuit Board Layout21
Power Supply Connector P201 Voltage And Diode Check30
General Backlight Information32
T - Con Board Section38
T - Con (Tft Drive) Board Removal39
T - Con Board (With Shield)41
T - Con (Tft Drive) Pwb (Shield Removed)42
T - Con (Tft Drive) Pwb Checks43
T - Con (Tft Drive) Voltages For The Panel Checks44
T - Con (Tft Driver) Board Cn3 And Cn4 (3.3V Voltage Check)45
T - Con Pwb Connector Cn5 To Main Pwb Voltage And Diode Check46
Main Board Section47
Input Signal Processing47
Output Signals47
Back View50
Main Pwb Tuner Clock And Data Lines56
Main Pwb Lvds P801 Video Output Check57
Main Pwb Connector P600 To Speakers Voltage And Diode Check62
Front Ir Board63
Front Pwb Assembly (Ir And Led Control) Layout (Back View)64
Key Board Section66
Reassembly Notes68