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ADJUSTMENT
OF SEMI-FIXED
RESISTORS
a) R88 (10K ohms)
|
Apply audio signals into first audio stage and
observe
the
ampli-
fied waveform
of them
with
oscilloscope.
Adjust
R88
for the
operating point on which
waveforms
are clipped equally
at both
tops and bottoms
of waves.
b) R42
(100K
ohms)
Make
the
unit into
MW
reception
and
set the dial pointor
at
1000KC.
Adjust R42 for 400"A
(+50xA)
current circulation thru
collector of Tr9 (2SC537E).
c) R12
100K
ohms
Make the unit into FM reception and adjust R12 for 400A current
circulation{thru collector of Tr4 (2SC545).
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