Troubleshooting Table - Sharp XV-Z1U Service Manual

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u
TROUBLE SHOOTING TABLE
(Continued)
No
Is sound heard with 3D SOUND off?
Yes
1 Check IC302 and its peripheral
I
circuits.
I
I
I
Does voltage at pin (9) of IC301
No -_---_---_--___-I
change with VOL UP/DOWN keys?
Yes
;
I
I
IC305 or nearby circuit in trouble.
1
I
_ _ _ _ - _ _ _ _ _ _ _ _ - _ -'
Are there audio signal inputs at pins No
(2) and (23) of IC301?
Yes
; IC306, IC6002, IC6003 or nearby
1
I circuit in trouble.
I
- _ - - - - _ - _ _ _ _ _ - - _
I
Are there audio signal inputs at pins NO
(1) and (9) of IC304?
Yes I
I
I
I
IC307 or nearby circuit in trouble.
I
Are there audio signal inputs at pins
(1) and (3) of connector SP?
Yes
;
I
I
IC304 or nearby circuit in trouble.
l
I
Replace speaker. i
I
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