LG M2250D - Page 45

ⓒ LG Electronics. Inc.2011
Contents of LCD TV Standard Repair Process Detail Technical Manual
No. Error symptom Content Page Remarks
1
A. Video error_ No video/Normal audio
Check LCD back light with naked eye A1
2
LED driver B+ 24V measuring method A2
3
Check White Balance value A3
4
A. Video error_ No video/Video lag/stop
TUNER input signal strength checking method A6
5
LCD-TV Version checking method A7
6
A. Video error_Color error
LCD TV connection diagram A8
7
Tuner Checking Part A9
8
Check Link Cable (LVDS) reconnection condition A10
9
Adjustment Test pattern - ADJ Key A12
10
A. Video error_Vertical/Horizontal bar, residual
image, light spot
LCD TV connection diagram A8
11
Check Link Cable (LVDS) reconnection condition A10
12
Adjustment Test pattern - ADJ Key A12
13
<Appendix>
Defected Type caused by T-Con/ Inverter/
Module
Exchange LED driver Board (PSU) A-1/3
14
Exchange Module itself (1) A-2/3
15
Exchange Module itself (2) A-3/3
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