Sharp 8C221, Руководство по обслуживанию

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l
P-l F Circuit
C i r c u i t
. T u n e r
B power supply circuit for
the tuner
click noise is given
to the pin 1 of does
1
noise appear on the screen?
Yes
Make the pin 9 of
be grounded
and check for the
voltage of
Normal
Check for the
voltage at
terminal.
N o
Check for the voltage at the
base, collector and emitter
of
Normal Abnormal
I I
I
I
I
B - B - - J
I