Read Sony CFM-20 (serv.man2) Service Manual online
8
CFM-20
FM Section
Function switch (S101)
: FM
Volume
: MIN
Tape Speed Adjustment
Procedure :
Mode : Playback
Procedure :
Mode : Playback
Adjustment Value :3,000Hz
Standard Value
Standard Value
:2,960 to 3,040Hz
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 :
TUNER SECTION
AM Section
Function switch (S101)
: AM
Volume
: MIN
0dB=1
µV
set
test tape
WS-48B
(3kHz, 0dB)
WS-48B
(3kHz, 0dB)
digital frequency
counter
counter
J101 (Earphone jack)
AEP, UK, CET, IT, AR, HK, SP modelt
C&SA, MX, TW model t KH102 (Speaker output)
Speaker output:12
Ω
Earphone jack:8
Ω
+
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
+
level meter
J101 (Earphone jack)
AEP, UK, CET, IT, AR, HK, SP modelt
C&SA, MX, TW model t KH102 (Speaker output)
Speaker output:12
Ω
Earphone jack:8
Ω
set
+
level meter
J101 (Earphone jack)
AEP, UK, CET, IT, AR, HK, SP modelt
C&SA, MX, TW model t KH102 (Speaker output)
Speaker output:12
Ω
Earphone jack:8
Ω
FM RF signal
generator
generator
75kHz frequency deviation by
1kHz signal.
Output level : as low as possible
1kHz signal.
Output level : as low as possible
telescopic
antenna
terminal
antenna
terminal
0.01 F
µ
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