Read Sony CFD-RS60CP Service Manual online
13
CFD-RS60CP
SECTION 4
MECHANICAL ADJUSTMENTS
SECTION 5
ELECTRICAL ADJUSTMENTS
0 dB = 0.775 V
• Precaution
1. Clean the following parts with a denatured alcohol-moistened
swab :
record/playback heads
pinch roller
erase head
rubber belts
capstan
idlers
2. Demagnetize the record/playback head with a head
demagnetizer. (Do not bring the head magnetizer close to the
erase head.)
erase head.)
3. Do not use a magnetized screwdriver for the adjustments.
4. The adjustments should be performed with the rated power
4. The adjustments should be performed with the rated power
supply voltage (9V) unless otherwise noted.
• Torque Measurement
TAPE SECTION
2.95 – 6.86 mN • m
(30 – 70 g • cm)
(0.42 – 0.97 oz • inch)
0.15 – 0.53 mN • m
(1.5 – 5.5 g • cm)
(0.021 – 0.076 oz • inch)
more than 5.88 mN • m
(more than 60 g • cm)
(more than 0.83 oz • inch)
more than 5.88 mN • m
(more than 60 g • cm)
(more than 0.83 oz • inch)
CQ-102C
CQ-102C
CQ-201B
CQ-201B
Mode
FWD
FWD
back tension
back tension
FF
REW
Torque meter
Meter reading
more than 100 g
(more than 3.53 oz)
CQ-403A
Mode
FWD
Torque meter
Meter reading
• Tape Tension Measurement
• Standard Output Level
Output terminal
HP OUT
load impedance
32
Ω
output signal level
0.25 V (–10 dB)
• Test Tape
Type
Signal
Used for
WS-48A
3 kHz, 0 dB
tape speed adjustment
Tape Speed Adjustment
Procedure:
Mode: playback
Mode: playback
Adjust so that the value on the digital frequency counter is
3,000 Hz.
3,000 Hz.
Specification Value:
Digital frequency counter
2,910 to 3,090 Hz
Adjust so that the frequency at the beginning and that at the end of
tape winding are between 2,910 to 3,090 Hz.
tape winding are between 2,910 to 3,090 Hz.
Adjustment Location:
i
jack (J371)
set
32
Ω
test tape
WS-48A
(3 kHz, 0 dB)
WS-48A
(3 kHz, 0 dB)
digital frequency
counter
counter
Tape speed adjustment
control inside motor
control inside motor
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