No Osd Trouble Shooting - LG M227WDP Service Manual

Check P1101(#9)
INV_ON high?
1. Check Power Board, 15V
2. Check IC1107 Output voltage(5V)
3. Check P304(#1,2,3) 5V
#13, #14, #25, #26
Check LVDS Cable for damage or open
Check LCD Module
(Refer to Module CAS)
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Only for training and service purposes

2. No OSD Trouble Shooting

Y
Y
Check P1103
Y
conductors.
N
Control board
N
N
1. Replace Power Board
2. Replace IC1107
N
Y
- 23 -
Check GPIO Path
(Refer to Appendix 1.)
IC100 has problem
Replace Cable
LGE Internal Use Only