76GF-63 (serv.man25). Whistle from centre speaker at low volume settings - Sharp TV Technical Bulletin (repair manual)

76gf-63 (serv.man25) technical bulletin
Model
76GF-63 (serv.man25)
Pages
1 Few pages! See other manuals at the bottom of the first or last page.
Size
11.21 KB
Type
PDF
Document
Technical Bulletin
Brand
Device
TV / CTR / Whistle from centre speaker at low volume settings
File
76gf-63-sm25.pdf
Date

Read Sharp 76GF-63 (serv.man25) Technical Bulletin online

CTV2002 02 03
Month of Issue:   February 2002
        
Classification: 
White
TELEVISION TECHNICAL BULLETIN
Page 1 of 1
Sharp Electronics (UK) Limited
Reference JR010202-3
Revision  1
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
66GF63H
76GF63H
SYMPTOM Whistle from centre speaker at low volume settings
CAUSE
Beat between centre and Left Class D output stage creates and audible whistle
ACTION
Change frequency of operation of Centre output stage
– replace R1312 with 8K2 resistor
REF NO
DESCRIPTION
PART NUMBER
PRICE CODE
R1312
8K2 resistor
VRS-TV1JD822J
AA
Display

Download Sharp 76GF-63 (serv.man25) Technical Bulletin

Here you can read online and download Sharp 76GF-63 (serv.man25) Technical Bulletin in PDF. 76GF-63 (serv.man25) technical bulletin will guide through the process and help you recover, restore, fix, disassemble and repair Sharp 76GF-63 (serv.man25) CTR. Information contained in service manuals typically includes schematics / circuit diagrams, wiring diagrams, block diagrams, printed wiring boards, exploded views, parts list, disassembly / assembly, pcb.