Technical information

38
(L) 2. W/LED No Backlight
Check R805 =16V
Check the output of PT801/PT802
Check ON/OFF signal
Check IC801 PIN12=5V
Check adapter circuit
Check Interface board
OK
OK
NG
NG
Change ON/OFF
NG
NG
OK
Check Q804,Q809 have the output of
square wave at short time.
Check IC801
Check Q804，Q809,D815,D814,D817,D816
OK
OK
OK
NG
NG
Change PT801 or PT802
Check connecter & lamp
Check IC801 PIN9，10 have the output of square wave at short time
OK