Adaptor /Inverter/Board - AOC 193FW Service Manual

8.2.2 Power/Inverter Board
No Backlight
Check ON/OFF signal
Check U201 pin9=12V
Check U201 PIN1 triangular wave is normal
Connect PIN4 and PIN7 of U201 if the picture is normal
Check the feedback circuit
Check connecter & lamp
Check C201 (+) =12V
NG
OK
NG
OK
NG
OK
NG
OK
NG
OK
NG
OK
Check F201 or power section
Check main board
Check Q201, Q202
Check R204,C208, U201
Replace U201
Check D210, D208, C222, R241,
C220 and so on
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AOC 193FW (+)