Sony CFD-600 Service Manual page 41

2. MECHANICAL ADJUSTMENTS
PRECAUTION
1. Clean the following parts with a denatured-alcohol-
moistened swab:
record/playback head pinch roller
erase head rubber belts
capstan idlers
2. Demagnetize the record/playback head with a head
demagnetizer. (Do not bring the head demagnetizer close
to the erase head.)
3. Do not use a magnetized screwdriver for the adjustments.
4. After the adjustments, apply suitable locking compound
to the parts adjusted.
5. The adjustments should be performed with the rated
power supply voltage unless otherwise noted.
6. Power supply voltage: 12V dc.
Torque Measurement
Meter reading
22—55g*cm
ee (0.31 = 0.76 02° inch)
Forward 2—5g°cm
sie (0.028 oe. 0.069 02" inch)
Fast more than 45g-cm
(more than 0.62 oz*inch)
Tape Tension Measurement
[wose [Meter id
Meter Reading
more than 100g
(more than 1.39 oz)
3. ELECTRICAL ADJUSTMENTS
1. TAPE RECORDER SECTION
Standard Output Level
Output terminal SP OUT HP OUT
omTsv (ab) _| 025 (-10aB)
Test Tape
ee
Tape Speed Adjustment
Procedure :
speed checker
Mode: playback LF ping
digital frequency
test tape counter
WS-48A
(3kHz, OdB)
Ea =
—— set CD - 3 fl
—- +
Phones jack
Adjustment Value:
Speed checker Digital frequency counter
—13% to +0% 2,960 to 3,000Hz
Frequency difference between the beginning and the end of
the tape should be within 1.5% (45Hz).
Adjustment Location :
tape speed adjustment
control inside motor