DELL E152FPc
33
2.) W / LED, No Backlight
Check C201 (+) =12V
NG
OK
Change F201
Check D201/Q206/Q207
Check ON/OFF signal
Check Interface board
NG
OK
Check U201 pin9=12V
NG
OK
Change Q201 or Q202
Check the pin1 of U201 have saw tooth wave
NG
OK
Change U201
Check D201 (-) have the output of square wave at short time.
NG
OK
Check Q205/Q207/D201/Q203
Q206/Q204
Check the resonant wave of pin2 & pin5 for PT201
NG
OK
Check the output of PT201
Check Q206/Q207/C210
Check connecter & lamp
O
K
NG
Change PT201
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