Sharp XV-ZW99U - Checking the G signal line of output PWB

1
xv-zw99u
TROUBLE SHOOTING TABLE
(Coutinued)
Checking the G signal line of output PWB
,.,.,
No ;
..:
)
Check pin (50) line of connector
SC1 001
T
1
Are output at pin (30) of IClOlO as
No )
specified?
llClOl0 or nearby circuit in trouble
Are signal outputs at pins (17), (19),
(21) (27) (29) and (31) of IC1019?
l-
1 I.21 019 or nearby circuit in trouble
:
I
I
1 Yes
‘,No ,....
I
Are signal fed at pins (2) thru (7)
of connector SC1 014 as specified?
1 Yes
*Connector SC1 014 poorly soldered or
-in trouble
v
) No
NO
I
Dose flicker happen?
I-p;Go to “Checking the image for sifting”
:
I
I
..,....
.,....
:
I Yes
k-w_-_- No
Is PSIG signal at pin (1) of connector
SC1 014 as specified?
Does PSIG signal at pin (1) of IC1019
Yes Yes
! Ql 018-l 021 or their signal line trouble
34