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6
HCD-RV20/RV50/RV60
2. MECHANICAL ADJUSTMENTS
Precaution
1. Clean the following parts with a denatured alcohol-moistened
swab:
record/playback heads
pinch rollers
erase head
rubber belts
capstan
idlers
2. Demagnetize the record/playback head with a head demagne-
tizer.
3. Do not use a magnetized screwdriver for the adjustments.
4. After the adjustments, apply suitable locking compound to the
4. After the adjustments, apply suitable locking compound to the
parts adjusted.
5. The adjustments should be performed with the rated power sup-
ply voltage unless otherwise noted.
Torque Measurement
Mode
Torque meter
Meter reading
3.06 N • m to 6.96 N • m
FWD
CQ-102C
31 to 71 g • cm
(0.43 – 0.98 oz • inch)
FWD
0.19 N • m to 0.58 N • m
back tension
CQ-102C
2 to 6 g • cm
(0.02 – 0.08 oz • inch)
3.06 N • m to 6.96 N • m
REV
CQ-102RC
31 to 71 g • cm
(0.43 – 0.98 oz • inch)
REV
0.19 N • m to 0.58 N • m
back tension
CQ-102RC
2 to 6 g • cm
(0.02 – 0.08 oz • inch)
6.96 N • m to 14.02 N • m
FF/REW
CQ-201B
71 to 143 g • cm
(0.98 – 1.99 oz • inch)
9.80 N • m
FWD tension
CQ-403A
100 g or more
(3.53 oz or more)
9.80 N • m
REV tension
CQ-403R
100 g or more
(3.53 oz or more)
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