LG 55UB820T Service Manual page 68

Contents of LCD TV Standard Repair Process Detail Technical Manual
No. Error symptom
1
A. Video error_ No video/Normal
audio
2
4
A. Video error_ video error /Video
lag/stop
5
6
A. Video error _Vertical/Horizontal bar,
7
residual image, light spot
8
A. Video error_ Color error
9
10
11
<Appendix>
12 Defected Type caused by T-Con/
Inverter/ Module
13
14
Content
Check LCD back light with naked eye
Check White Balance value
TUNER input signal strength checking
method
LCD-TV Version checking method
Tuner Checking Part
LCD TV connection diagram
Check Link Cable (EPI) reconnection
condition
Adjustment Test pattern - ADJ Key
Exchange Main Board (1)
Exchange Main Board (2)
Exchange Power Board (PSU)
Exchange Module (1)
Exchange Module (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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