Acer AL1716x 서비스 매뉴얼 - 페이지 35
{카테고리_이름} Acer AL1716x에 대한 서비스 매뉴얼을 온라인으로 검색하거나 PDF를 다운로드하세요. Acer AL1716x 50 페이지.
페이지 인쇄
No raster
YES
LED Green?
YES
Backlight can
not be turned on
YES
I
s there 12Vdc
voltage on pin13 of
IC501?
YES
Is there high-level
voltage on pin8 of
IC501
YES
Check CN501, CN502,
CN503 and CN504?
YES
Is there pulse waveform on pin1,
pin3, pin15 and pin16 of IC501 at the
moment of restart?
YES
Is ok T501, T502?
YES
Check protected
circuit Q501, Q502,
Q503, Q504
END
NO
NO
I
s Ok fuse F501?
NO
Is R526 Ok?
NO
NO
NO
Is Ok IC501?
NO
T501, T502 fail
35
F501 open
YES
YES
NO
Check power
supply
Check I/F board
R526 open
Connecting the
output connector
again
U501, U502 fail
IC501 fail