15" LCD Color Monitor Planar PL1520M
45
10.2.2 Power Board
1. W/LED No Backlight
Check C201 (+) =12V
NG
OK
Check adapter
Check ON/OFF signal
Check Interface board or main board
NG
OK
Check U201 pin9=12V
NG
OK
Change Q201 or Q202
Check U201 PIN10 have the output of sawtooth wave at short time
NG
OK
Change U201
Check D201 (-) has the output of square wave at short time.
NG
OK
Check Q205, Q207, Q203
Check the resonant wave of pin2 & pin5 for PT201
NG
Check the output of PT201
Check Q209, Q210, C213
Check connecter & lamp
OK
NG
Change PT201
OK
Содержание PL1520M
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