Mechanical Adjustments - Sony TCM-323 Service Manual

SECTION 4

MECHANICAL ADJUSTMENTS

1. Clean the following parts with a denatured-alcohol-moistened
swab:
record/playback head
erase head
capstan
2. Demagnetize the record/playback head with a head demagne-
tizer. (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 (2.5 V) unless otherwise noted.
Torque Measurement
Mode Torque Meter
FWD
CQ-102C
Forward Back Tension
FF
CQ-201B
REW
Tape Tension Measurement
Mode Tension Meter
FWD CQ-403C
pinch roller
rubber belt
idlers
Meter Reading
more than 20 g•cm
(more than 0.28 oz•inch)
0.5 - 3 g•cm
(0.007 - 0.04 oz•inch)
more than 50 g•cm
(more than 0.69 oz•inch)
Meter Reading
more than 50 g
(more than 1.76 oz)
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