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W / LED, No Backlight
|
Check R803=12V
OK
-—->|
Check adapter or MB
|
|
Check ON/OFF
NG
|-1
-J
Check Interface board
L^-
OK
ckIC801
NG
1
1
-> Change
Check IC801 PIN15 have the output of square wave at short time
OK
-—->
Change IC801
| Check the inp Ut of Q805, Q806
OK
NG
1-1
-*• Change Q805, Q806,D801,D802,D803,Q804
|
Check the output of PT801, PT802
OK
NG
|-1
-►
Change PT801, PT802
scter & lamp
|
35
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