Sharp 32JF-73H (serv.man28) Service Manual / Technical Bulletin ▷ View online
CTV2003 07 02
Date of Issue:
27
th
April 2004
Classification:
White
TELEVISION TECHNICAL BULLETIN
Page 1 of 1
Sharp Electronics (UK) Limited
Reference JR09072003-1
Revision 3
White – Carry out as required
Yellow – Carry out as required and whenever the unit comes in for service
Red – Carry out on all units
MODELS
28JW73H
32JW73H
28JF73H
32JF73H
SYMPTOM
The following faults may be apparent on the set:
•
Not coming out of standby.
•
Intermittently entering standby.
•
No line drive.
•
Erratic line drive.
•
Line
tearing.
ACTION
A number of components can cause this problem. Ensure that the line driver
transistor is replaced with the one listed below, and that all of the microprocessor
(IC1001) connections are re-flowed.
transistor is replaced with the one listed below, and that all of the microprocessor
(IC1001) connections are re-flowed.
If the above action does not cure the symptom, replace both of the audio output
amplifier IC's - IC1301 and IC1302.
amplifier IC's - IC1301 and IC1302.
REF NO
DESCRIPTION
PART NUMBER
PRICE CODE
Q601
Transistor, 2SC2482
VS2SC2482//-1
AC
IC1301
IC, TDA7480
VHITDA7480/-1
AK
IC1302
IC, TDA7480
VHITDA7480/-1
AK
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