LG 50LN54 Series Service Manual page 54

Contents of LCD TV Standard Repair Process Detail Technical Manual
No. Error symptom
1
2
A. Video error_ No video/Normal audio
3
4
6
A. Video error_ No video/Video lag/stop
7
9
10
A. Video error_Color error
11
12
13
A. Video error_Vertical/Horizontal bar,
14
residual image, light spot
15
16
17
<Appendix>
18
Defected Type caused by T-Con/
Inverter/ Module
19
20
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Only for training and service purposes
Content
Check LCD back light with naked eye
LED driver B+ measuring method
Check White Balance value
Power Board voltage measuring method
TUNER input signal strength checking method
LCD-TV Version checking method
LCD TV connection diagram
Check Link Cable (LVDS) reconnection condition
Adjustment Test pattern - ADJ Key
LCD TV connection diagram
Check Link Cable (LVDS) reconnection condition
Adjustment Test pattern - ADJ Key
Exchange T-Con Board (1)
Exchange T-Con Board (2)
Exchange LED driver Board (PSU)
Exchange Module itself (1)
Exchange Module itself (2)
Page Remarks
A1
A2
A3
A4
A5
A6
A7
A8
A9
A10
A8
A8
A9
A10
A-1/5
A-2/5
A-3/5
A-4/5
A-5/5
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