LG 47LW5700-JA (CHASSIS:LE13E) Service Manual ▷ View online
Checking method:
1. Check the signal strength or check whether the screen is normal when the external device is connected.
2. After measuring each voltage from power supply, finally replace the MAIN BOARD.
1. Check the signal strength or check whether the screen is normal when the external device is connected.
2. After measuring each voltage from power supply, finally replace the MAIN BOARD.
Standard Repair Process Detail Technical Manual
TUNER checking part
A. Video error_Video error, video lag/stop
<ALL MODELS>
A9
Established
date
Revised
date
Error
symptom
Content
LCD TV
A9
2010. 2 .19
LE13A
LE13B
LE13E
LE13F
Standard Repair Process Detail Technical Manual
Adjustment Test pattern - ADJ Key
A. Video error_Color error
You can view 6 types of patterns using the ADJ Key
Checking item : 1. Defective pixel
Checking item : 1. Defective pixel
2. Residual image
3. MODULE error (ADD-BAR,SCAN BAR..)
4.Video error (Classification of MODULE or Main-B/D)
A12
Established
date
Revised
date
Error
symptom
Content
LCD TV
A12
2011. 1 .19
Appendix : Exchange PSU(LED driver)
No Light
Dim Light
Dim Light
Dim Light
No picture/Sound Ok
A - 1/3
Appendix : Exchange the Module (1)
Panel Mura, Light leakage
Press damage
Crosstalk
Crosstalk
Press damage
Panel Mura, Light leakage
Press damage
A - 2/3
Un-repairable Cases
In this case please exchange the module.
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