Acer V203H

36
2.) No Backlight
Change Q802, Q803
Check CN902 pin4, 5 = 14V
Check the adapter or MB
Check ON/OFF signal
Check Interface board
Check IC801 PIN12=12V
Change Q808
Check Q802, Q803 PIN5, 6, 7, 8 have the
output of square wave at short time.
Check the output of T801, T802
Change T801, T802
Check connecter & lamp
OK
OK
OK
NG
OK
NG
NG
NG
OK
NG
OK
Check the PWM wave from the pin9,10 of IC801
Change IC801
NG
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