LG 50UL3G Service Manual page 29

Contents of Standard Repair Process Detail Technical Manual
No. Error symptom
1
2
A. Video error_ No video/Normal audio
3
4
5
6
A. Video error_Color error
7
8
9
10 <Appendix>
Defected Type caused by Main/ Inverter/
11
Module
12
13
Content
Check LCD back light with naked eye
LED driver B+ measuring method
Check White Balance value
Power Board voltage measuring method
Version checking method
connection diagram
Check Link Cable reconnection condition
Adjustment Test pattern - ADJ Key
Exchange VX1 or EPI Cable or Main B/D (1)
Exchange VX1 or EPI Cable or Main B/D (2)
Exchange LED driver Board (PSU)
Exchange Module itself (1)
Exchange Module itself (2)
Page Remarks
A1
A2
A3
A4
A5
A6
A7
A8
A-1/5
A-2/5
A-3/5
A-4/5
A-5/5
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