Sharp XV-Z200U/E Service Manual page 32

XV-Z200U/E, XV-Z201E
DT-300
Check of the S terminal input.
Input the S terminal (Y, C) signal to
INPUT 3. Select INPUT 3 with the
keys on the main body or the
remote controller.
Does the picture appear?
No
Is the picture signal inputted to the
pins (5) and (7) of connector TC?
No
Check the input side PWB .
Yes
Is the picture disturbed?
Yes
1
Yes
In the picture signal inputted to
pins (43) and (44) of IC3105?
Are the video signals
outputted from pins (21), (22)
and (23) of IC3501 and
inputted to pins (67), (68) and
(69) of IC3102?
Yes
3
32
No
End.
No
Check the Y, C signal
lines.
Yes
Check IC3105 and the
No
peripheral circuits of the
IC.