LG 55UB8500-UA Service Manual page 101

Contents of LCD TV Standard Repair Process Detail Technical Manual
No. Error symptom
1
A. Video error_ No video/Normal A Video error No video/Normal
audio
2
4
A Video error video error /Video A. Video error_ video error /Video
lag/stop
5
6
A. Video error Vertical/Horizontal bar, A. Video error _Vertical/Horizontal bar,
7 7
residual image, light spot
8
A. Video error_ Color error
9 9
10
11
<Appendix> Appendix
12 Defected Type caused by T-Con/
Inverter/ Module
13
14 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 LCD TV ti di
Check Link Cable (EPI) reconnection
condition
Adj Adjustment Test pattern - ADJ Key
Exchange Main Board (1)
Exchange Main Board (2)
Exchange Power Board (PSU)
Exchange Module (1)
Exchange Module (2) Exchange Module (2)
Page
A1
A2
A3
A4
A5
A6 A6
A7
A J K A8 A8
A-1/5
A-2/5
A-3/5
A-4/5
A-5/5 A 5/5
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Remarks
LGE Internal Use Only