Mechanical Adjustments - Sony TCM-20DV Service Manual

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
FWD
FWD
Back Tension
FF
REW
Tape Tension Measurement
Mode
FWD
Get user manuals: See SafeManuals.com
SECTION 4
pinch roller
rubber belt
idlers
Torque Meter Meter Reading
2.16 - 4.7 mN•m
(22 - 48 g•cm)
(0.31 - 0.67 oz•inch)
CQ-102C
0.05 - 0.29 mN•m
(0.5 - 3 g•cm)
(0.007 - 0.04 oz•inch)
4.90 mN•m
CQ-201B (more than 50 g•cm)
(more than 0.69 oz•inch)
Torque Meter Meter Reading
4.90 mN•m
CQ-403C (more than 50 g)
(more than 1.76 oz)
– 7 –