7
TCM-230DV
SECTION 4
MECHANICAL ADJUSTMENTS
PRECAUTION
1. Clean the following parts with a denatured-alcohol-moistened
swab:
record/playback head
pinch roller
erase head
rubber belt
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 (2.5 V) unless otherwise noted.
TORQUE MEASUREMENT
Mode
Torque Meter
Meter Reading
FWD
2.16 - 4.7 mN•m
(22 - 48 g•cm)
CQ-102C
(0.31 - 0.67 oz•inch)
FWD
0.05 - 0.29 mN•m
(0.5 - 3 g•cm)
Back Tension
(0.007 - 0.04 oz•inch)
FF
4.90 mN•m
CQ-201B
(more than 50 g•cm)
REW
(more than 0.69 oz•inch)
TAPE TENSION MEASUREMENT
Mode
Torque Meter
Meter Reading
4.90 mN•m
FWD
CQ-403C
(more than 50 g)
(more than 1.76 oz)
