Acer LCD-X193HQ User Manual

Acer Acer –LCD-X193HQ
51
4.4 No Raster
Is there high-level
voltage on pin8 of
IC501?
Are connected rightly
CN501, CN502, CN503
and CN504?
Is there instantaneously
pulse wave on pin14,
pin11 of IC501 at the
moment of restart?
No raster?
Yes
No
Check power
supply
No
Check I/F
board
Yes
R501 open
No
Yes
Is Ok IC501?
Yes
U501, U502 fail
No
IC501 fail
T501, T502 fail
No
Connecting the output
connector again
No
Yes
Is there 16Vdc
voltage on pin9
of IC501?
Yes
Is Ok R510?
Is T501, T502
ok
?
LED Blue?
Backlight can’t
be turned on.
Yes
Yes
Yes
No
Check feedback circuit
Isen,Vsen.(pin 1.2)
pin2,D508,D509.)
Yes
END

Acer LCD-X193HQ Specifications

General

Brand	Acer
Model	LCD-X193HQ
Category	Monitor
Language	English