Radio Section - Sony CFD-21 Service Manual

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5-2.
RADIO
SECTION
eFM Section
Setting :
FUNCTION switch: FM
FM ff signal
generator
22.5kHz frequency
deviation by 400Hz signal
output level: as low as possible
@ AM Section
Setting :
FUNCTION switch: AM
AM ff signal
generator
Put the lead-wire
antenna close to
the set.
CS
30% amplitude
modulation by
400Hz signal
output level : as low as possible
VTVM
(range: 0.5—5V ac)
PHONES
jack
@ Repeat the procedures in each adjustment several times,
and the frequency
coverage
and tracking
adjustments
should be finally done by the trimmer capacitors.
FM Frequency Coverage Adjustment
Adjust for a maximum reading on
VT VM.
86.5MHz
109.5MHz
FM Tracking Adjustment
Adjust for a maximum reading on VTVM.
CT1
106MHz
AM IF Adjustment
Adjust for a maximum reading on
VT VM.
Tl
455kHz
AM Tracking Adjustment
Adjust for a maximum reading on
VT VM.
600kHz
1,400kHz
Adjustment Location see page13.

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