21KF-80H
TROUBLESHOOTING TABLES
NO RASTER
Check F701.Blown out.
Replace the fuse.
The fuse is again blown
Check T701 pin16 voltage.
(Approx. 290V at 220V AC)Check IC701,D701,D702,
D703,D704 and C705.
Check R701,Q701
and IC701.
Check Secondary Main+B.
(Approx. 118V )
Check D758,IC702
and D751.Check CRT connectorD1001 (Power LED Bright
K1-K5 bias.Red) turns on.
D1001 (Power LED Dark
Red) turns on.
Check R605,Check C878,
Check IC801.
Q601 and Q602.R608 and D603.
Check the
protector
D1001 turns on
brightly and darkly.
NVM
(IC1002)
See many often D1001TV PROCESSOR
flashes in red.(IC801)
This indicates which IC
toSOUND PROCESSOR
(IC3001)
TUNER
(TU201)
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