76GF-63 (serv.man12). Countermeasure for noise from speakers (revision-2) — Sharp TV Technical Bulletin (repair manual)

Model
76GF-63 (serv.man12)
Pages
1 Few pages! See other manuals at the bottom of the first or last page.
Size
6.64 KB
Type
PDF
Document
Technical Bulletin
Brand
Device
TV / CTR / Countermeasure for noise from speakers (revision-2)
File
76gf-63-sm12.pdf
Date

View Sharp 76GF-63 (serv.man12) Technical Bulletin online

CTV2004 01 01
Month of Issue: 
January 2004
        
Classification: 
White
TELEVISION TECHNICAL BULLETIN
Page 1 of 1
Sharp Electronics (UK) Limited
Reference - AvW 09 01 2004
Revision - 2
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
66FW53H
66GF63H
76FW53H
76GF63H
SYMPTOM The following symptoms may be apparent:
1.  IC1300 (on the centre speaker PWB) running hot.
2.  IC1300 is short circuit (dead set).
3.  Noise coming from the centre speaker - this may be intermittent.
ACTION
Carry out the following modification:
1. Remove D1303.
2. Remove D1304
3.  Short out pins 1 to 4 of IC1300 (all pins connected togeather).
Note
This modification is only applicable to some models fitted with a centre speaker PWB
(those fitted with IC1300), as listed in the table below:
Model
Centre Speaker PWB Fitted
Modification Applicable
66FW53H
DUNTK7285BMV0
Yes
66FW54H
DUNTK7285BMV4
No
76FW53H
DUNTK7285BMV2
Yes
76FW54H
DUNTK7285BMV3
No
66GF63H
DUNTK7285BMV0
Yes
66GF64H
DUNTK7285BMV8
No
76GF63H
DUNTK7285BMV0
Yes
76GF64H
DUNTK7285BMV8
No
There is no centre speaker fitted to the 56FW53H.
Tech Tip
In the case of a dead set, caused by short circuit IC1300, it is possible to run the set
by completely disconnecting the centre speaker PWB.

Download Sharp 76GF-63 (serv.man12) Technical Bulletin

Here you can view online or download Sharp 76GF-63 (serv.man12) Technical Bulletin in pdf. This Technical Bulletin can help you recover, restore, fix, disassemble and repair Sharp 76GF-63 (serv.man12) CTR. Information contained in Sharp 76GF-63 (serv.man12) service manual (repair manual) typically includes:

  • Disassembly, troubleshooting, programming, maintenance, remote, adjustment, installation and setup instructions.
  • Schematics, wiring and block diagrams.
  • Printed wiring boards (PWB) and printed circuit boards (PCB).
  • Parts list (bill of materials).