Read Sony CFM-S1 Service Manual online
7
CFM-S1
SW Section
BAND switch
: SW1, SW2
FINE TUNING control
: mechanical center
FM Section
Function switch : FM
Volume
Volume
: MIN
Tape Speed Adjustment
Procedure :
Mode : Playback
Procedure :
Mode : Playback
Adjustment Value :3,000Hz
Standard Value
Standard Value
:2,990 to 3,010Hz
set
test tape
WS-48B
(3kHz, 0dB)
WS-48B
(3kHz, 0dB)
8
Ω
digital frequency
counter
counter
J101 (Earphone jack)
+
Frequency difference between the beginning and the end of the tape
should be within 1.0% (30Hz).
should be within 1.0% (30Hz).
Adjustment Location :
tape speed adjustment
control inside motor
control inside motor
AM RF signal
generator
generator
30% amplitude modulation by 400Hz
signal.
Output level : as low as possible
signal.
Output level : as low as possible
Put the lead-wire
antenna close to
the set.
antenna close to
the set.
set
8
Ω
+
J101 (Earphone jack)
level meter
AM RF signal
generator
generator
30% amplitude
modulation by 400Hz signal
output level : as low as possible
modulation by 400Hz signal
output level : as low as possible
telescopic
antenna
terminal
antenna
terminal
12pF
set
8
Ω
+
J101 (Earphone jack)
level meter
FM RF signal
generator
generator
22.5kHz frequency deviation by
400Hz signal.
Output level : as low as possible
400Hz signal.
Output level : as low as possible
telescopic
antenna
terminal
antenna
terminal
0.01 F
µ
TUNER SECTION
MW Section
Function switch : MW
Volume
Volume
: MIN
set
8
Ω
+
J101 (Earphone jack)
level meter
0dB=1
µ
V
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