DOWNLOAD Sharp 21KF-80 (serv.man13) Service Manual ↓ Size: 5 MB | Pages: 44 in PDF or view online for FREE

Model
21KF-80 (serv.man13)
Pages
44
Size
5 MB
Type
PDF
Document
Service Manual
Brand
Device
TV / CTR
File
21kf-80-sm13.pdf
Date
PREV: Sharp 21KF-80 (serv.man12) Service Manual

Sharp 21KF-80 (serv.man13) Service Manual ▷ View online

33
21KF-80H
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BLOCK DIAGRAMS
CRT Unit, F7341
34
21KF-80H
C
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Page 35
Mother unit, F7340
35
21KF-80H
Page 34
   Mother unit, F7340
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36
21KF-80H
TROUBLESHOOTING TABLES
NO RASTER
Check F701.
Check T701 pin16 voltage.
(Approx. 290V at 220V AC)
Check Secondary Main+B.
(Approx. 118V )
Check R701,Q701
and IC701.
Blown out.
Replace the fuse.
The fuse is again blown 
Check IC701,D701,D702,
D703,D704 and C705.
Check CRT connector
K1-K5 bias.
D1001 (Power LED Bright 
Red) turns on.
D1001 (Power LED Dark 
Red) turns on.
Check C878,
R608 and D603.
Check IC801.
Check D758,IC702
and D751.
Check R605,
Q601 and Q602.
Check the
protector 
D1001 turns on 
brightly and darkly.
NVM
(IC1002)
TV PROCESSOR
(IC801)
SOUND PROCESSOR
(IC3001)
TUNER
(TU201)
See many often D1001
flashes in red.
This indicates which IC 
to
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