Read Sharp 21KF-80 (serv.man12) Service Manual online
37
21KF-80H
NO VERTICAL SCAN
Check IC501, the connectors
F4
and F5, and adjacent
Check IC501 bias.
Check D501,D505,C502 and C514
NO SPECIFIC COLOUR
Is some colour produced
in B/W broadcast
Check IC801, R801,R802,
D804, D805 and D806.
Is the white balance
properly adjusted?
Readjusted the white
balance.
The picture colour is
yellow.
The picture colour is
magenta.
The picture colour is
cyan.
Check Q872,Q887 and
their adjacent circuits.
Check Q871,Q883 and
their adjacent circuits.
Check Q870,Q885 and
their adjacent circuits.
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