Technická informácia Collection of LCD/LED Television Repair Tips V4.0

Contents
How To Use This Guide ..................................................................................... 8
LCD & LED TV Repair Tips ............................................................................. 9
CHANGHONG ......................................................................................... 9
LG ............................................................................................................. 12
PHILIPS......................................................................... 17
SAMSUNG ..................................................................... 17
SHARP ........................................................................... 28
SONY ............................................................................ 29
TCL .............................................................................. 30
XOCECO ........................................................................ 32
How to Isolate the LCD TV Problem Fast ..................................................... 33
A) Basic Knowledge ................................................................................ 33
B) How LCD TV Work .......................................................................... 35
C) The Method and Tools to Help Isolate LCD TV Problem ............ 39
Another Main Board Secrets Repair Tips ........................................ 43
Main Board Repair Tips ..................................................... 48
This Main Board Secrets Repair Tips Can Apply to? ................. 54
How to Find a Substitution of SPI Flash Memory and EEPROM ICs in
LCD/LED TV and Monitor ......................................................... 56
How to Choose a Substitute EEPROM IC................................. 56
Can I Replace the EEPROM IC with Other Brands IC? ............. 57
How to Choose a Substitute Serial SPI Flash Memory................. 66
Serial SPI Flash Memory Substitute/Compatible List ............... 75
What is LED Driver in LED TV? .................................................. 78
LED Backlight Repair Tips for LED TV ......................................... 79
How to Bypass LED TV Inverter Board Shutdown Backlight System –
Inverter IC List ...................................................................... 85
The Method of How to Find LCD & LED TV Panel/Screen as a
Replacement or Equivalent ....................................................... 89
The T-CON Board.................................................................... 103
The Importance of Checking GAMMA & Vcom Voltage in T-CON
Board.................................................................................... 105
How to GAMMA Channels Voltages and Vcom Voltages (Common
Voltage) Generated.................................................................. 105
What will happen when Vcom/VCM voltage missing? .............. 109
How to know the GAMMA Channels Voltages Normal or
Abnormal?...................................................................................................... 110
Why After Replace the AS15-G to AS15-HG the TV Still Has
Problem? .............................................................................. 112
Various of T-CON Board Voltage Testing Points and Their Symptom
When Voltage Fail to Appears..................................................... 114
Repair Case Study for T-CON Board ................................... 122
T-CON Board Repair Tips ................................................ 126
Conclusion ........................................................................................................ 136
BONUS-A: LG LCD & LED TV Interconnect Schematic Diagrams....... 137
LG 42LE5500...................................................138
LG 42LH50 .................................................... 140
LG 42LH90 .................................................... 142
LG 42LV5500.................................................. 146
LG 47LG70 .................................................... 148
N OF LCD/LED TELEVISION REPAIR TIPS-V4.0
LG 47LM7600.................................................149
LG 47LW5600 ................................................154
LG 47LX6500 .................................................158
LG 47LX9500 .................................................162
LG55LW5700 .................................................166
T-CON Board Schematic/Circuits Diagrams
AUO B140XW02-V0 ....................................... 170
AUO B156XW02-V2 ....................................... 175
CMO V315B3-L01-C........................................182
CMO V315B3-L01T .........................................185
Hisense LED42K16X3D (4736) Main Board Built-in T-CON
Section .........................................................................188
LG-Philips LC470WX1-SLA_6870C-0143B.............193
Samsung LJ94-16057D-S100FAPC2LV0.0............. 199
Samsung LTA320AP03-C2LV0.1........................ 204