LG M237WD - ADJUSTING SCREEN POSITION, SIZE, PHASE

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Copyright LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
C
2009
8. All Source Audio Trouble Shooting
Make sure yo u can t hear any audio
and Device sup port the au dio sig nal
norm ally .
Check Speaker and it s wire
connectio n (P500)
And the resistance
Check Sig nal from IC501
L502, L503, L504, L505
Y
Replace IC500
N
Check 15V From Po wer board
(P700, Pin#1,2)
And Check Aud io Amp Pow er 12V
(IC501, Pin#2, 3, 34, 35, 40, 41, 44, 45)
Y
Replace Power Board or Check
L511
N
Y
Check Sig nal from IC101
(R130, R131, R1021, R1022)
Y
Replace IC101
N
Replace co nnector or Speaker
N