LG 49SM5C-BF Service Manual page 26

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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
A. Video error_Vertical/Horizontal bar,
9
residual image, light spot
10
11
<Appendix>
Defected Type caused by Main/ Inverter/
12
Module
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 (LVDS) reconnection condition
Adjustment Test pattern - ADJ Key
Check Link Cable (LVDS) reconnection condition
Adjustment Test pattern - ADJ Key
Exchange LED driver Board (PSU)
Exchange Module itself (1)
Exchange Module itself (2)
Page
Remarks
A1
A2
A3
A4
A5
A6
A7
A9
A7
A8
A9
A-3/5
A-4/5
A-5/5
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Only training and service purposes.

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