LG 49UJ634V - Page 50

Contents of Standard Repair Process Detail Technical Manual
No. Error symptom Content Page Remarks
1
A. Video error_ No video/Normal
audio
Check LCD back light with naked eye A1
2 Check White Balance value A2
3
A. Video error_ video error /Video
lag/stop
TUNER input signal strength checking
method
A3
4 Version checking method A4
5 Tuner Checking Part A5
6
A. Video error _Vertical/Horizontal bar,
residual image, light spot
Connection diagram A6
7 A. Video error_ Color error
Check Link Cable (EPI) reconnection
condition
A7
8
<Appendix>
Defected Type caused by T-Con/
Inverter/ Module
Check Cable(1) ~ (2)
A-1/11
A-2/11
9 Exchange Main Board (1) ~ (3)
A-3/11 ~
A-5/11
10 Exchange Module (1) ~ (3)
A-6/11 ~
A-8/11
11 Exchange T-Con (1) ~ (2)
A-9/11 ~
A-10/11
12 Exchange Power Board (PSU) A-11/11
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