LG L1933TR-SF - - 19" LCD Monitor Service Manual page 22

NO POWER
(POWER INDICATOR OFF)
Fuse F101 OK?
C101 Voltage
(AC110V->160Vdc
(AC220V->304Vdc
U101 Pin6 Waveform
(Square wave
Check Q101 Drain
Check D201, D202
CHECK 5V, 12V Line
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Only for training and service purposes
CHECK
YES
CHECK
YES
CHECK
Come out?)
YES
Waveform
YES
Voltage
YES
5. POWER
NO
NO
NO
NO
NO
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Trouble in Fuse (F101)
Check BD101
Check U101 Pin7 : 9~10V
Check D102
Trouble in Q101
Trouble in D201, D202
LGE Internal Use Only