LG M237WD Service Manual page 16

Check P70 0(#9)
INV_ON high
1. Check Po wer Board , 15V
2. Check Q702 Output voltage(5V)
3. Check P302(#1, 2, 3) 5V
Check P30 2
#8(TXEC+) , #9(TXEC-) ,
#20(TXOC+) , #21(TXOC-)
Check L VDS Cable for damage or ope n
con ductors .
Check L CD Module
Control board
(Refer to Module CAS)
Copyright 2009 LG Electronics. Inc. All right reserved.
C
Only for training and service purposes
2. No OSD Trouble Shooting
Y
Y
Y
N
N
(Refer to Appe ndix 1 .)
N
1. Replace Pow er Board
2. Replace Q702
N
Y
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Check GPIO Path
IC101 has problem
Replace Ca ble
LGE Internal Use Only