Sony CFS-K1066, Service Manual

Page: 9 / 22

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Tape Speed Adjustment
Procedure :
Mode : Playback
Adjustment Values :
Speed checker Digital frequency counter
±3% 2,910 to 3,090Hz
Frequency difference between the beginning and the end of the tape
should be within 1% (30Hz).
Adjustment Location :
set
test tape
WS-48A
(3kHz, 0dB)
32
Ω
speed checker
LFM-30 or
digital frequency
counter
phones jack
TUNER SECTION
• Switch location
FUNCTION switch
• • • • • • • • • • • • • • • •
RADIO (CFS-K1066S)
PRESET MODE
• • • • • • • • • • • • • • • • • • • •
MANUAL
GRAPHIC EQUALIZER
• • • • • • •
center click
BALANCE
• • • • • • • • • • • • • • • • • • • • • • • • • • • •
center click
VOLUME
• • • • • • • • • • • • • • • • • • • • • • • • • • • • • •
MAX
MEGA BASS
• • • • • • • • • • • • • • • • • • • • • • • •
mechanical center
KARAOKE MODE switch
• • • • •
OFF
MW Section
Procedure :
FUNCTION switch : AM (CFS-K1066)
BAND switch : MW (CFS-K1066S)
FINE TUNE control : mechanical center (CFS-K1066S)
CFS-K1066S
SW Section
Procedure :
BAND switch : SW1, SW2
FINE TUNE control : mechanical center
FM Section
Procedure :
FUNCTION switch : FM (CFS-K1066)
BAND switch : FM (CFS-K1066S)
FINE TUNE control : mechanical center (CFS-K1066S)
• Repeat the procedures in each adjustment several times, and the
frequency coverage and tracking adjustments should be finally
done by the trimmer capacitors.
AM RF signal
generator
30% amplitude modulation by 400Hz
signal.
Output level : as low as possible
Put the lead-wire
antenna close to
the set.
FM RF signal
generator
telescopic
antenna
terminal
0.01
µ
F
22.5kHz frequency deviation
by 400Hz signal.
Output level : as low as possible
set
32
Ω
phones jack
level meter
AM RF signal
generator
telescopic
antenna
terminal
12PF
30% amplitude modulation
by 400Hz signal.
Output level : as low as possible
tape speed adjustment
control inside motor