32
No Backlight
Check C201 (+) =12V
NG
OK
Check F902
Check ON/OFF signal
Check Interface board
NG
OK
Check U201 pin9=12V ?
NG
OK
Change Q201 or Q202
Check the pin1 of U201 have saw tooth wave
NG
OK
Change U201
Check D201 (-) have the output of square wave at short time.
NG
OK
Check Q203/Q205/Q207/D201
Check the resonant wave of pin2 & pin5 for PT201
NG
Check the output of PT201
Check Q209/Q210/C213
Check connecter & lamp
OK
NG
Change PT201
OK
Содержание AL1511
Страница 1: ...0 Acer AL1511 Service Guide ...
Страница 11: ...10 Software Flow Chart 1 2 N Y 5 Y N 10 Y N 12 Y N 7 Y N 6 4 3 8 9 14 11 13 Y N 15 Y N 16 17 19 Y N 18 ...
Страница 15: ...14 Front Panel 1 Auto Adjust Key Exit 4 MENU ENTER 2 Volume 5 LED 3 Volume 6 Power Key ...
Страница 16: ...15 Rear cover Item Description 1 Power cord 2 Signal Cable 3 Audio Cable ...
Страница 28: ...27 The end ...
Страница 37: ...36 Exploded Diagram ...
Страница 39: ...38 6 Hinge 7 Stand base 8 Main board 9 PWPC board 10 Audio board 11 Key board ...
Страница 52: ...51 Power Board ...
Страница 53: ...52 ...