Copyright ⓒ 2009 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
2. No OSD Trouble Shooting
Replace Power board
N
Y
Check 12V Voltage Level
at P800 #13 Pin
Check Power connector
Y
Check 12V Voltage Level at L903
N
Replace one of
Q900/Q901/Q902/L903
& Recheck
Y
Check P903
#16(TXAC-), #17(TXAC+),
#32(TXBC-), #33(TXBC+)
N
Y
Check LVDS Cable
N
Replace Cable
Y
Check Voltage LCD Module
Check 12V Voltage Level
at L902
N
Replace one of L804/L902
& Recheck
Y
Maybe BCM3556(IC100)
has troubles
Содержание 47LH40ED
Страница 61: ...Mar 2009 Printed in Korea P NO MFL58993602 ...