Acer AT2245 - Page 35

35
W / LED, No Backlight
Check R803=12V
NG
OK
Check adapter or MB
Check ON/OFF
Check Interface board
NG
OK
Check IC801
NG
OK
Change
NG
OK
Change IC801
Check the input of Q805, Q806
NG
Check the output of PT801, PT802
Check connecter & lamp
OK
NG
Change PT801, PT802
OK
Check IC801 PIN15 have the output of square wave at short time
Change Q805, Q806,D801,D802,D803,Q804