Mechanical Adjustments - Sony HCD-GTR6 Service Manual

SECTION 3

MECHANICAL ADJUSTMENTS

(only for HCD-GTR6B/GTR8B)
Precaution
1. Clean the following parts with a denatured alcohol-moistened
swab:
record/playback heads
erase head
capstan
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
parts adjusted.
5. The adjustments should be performed with the rated power
supply voltage unless otherwise noted.
Torque Measurement
Mode Torque meter
FWD CQ-102C
FWD
back tension CQ-102C
REV CQ-102RC
REV
CQ-102RC
back tension
FF/REW CQ-201B
pinch rollers
rubber belts
idlers
Meter reading
2.9m N • m to 6.9m N • m
30 to 70 g • cm
(0.42 – 0.97 oz • inch)
0.15m N • m to 0.59m N • m
2 to 6 g • cm
(0.03 – 0.08 oz • inch)
2.9m N • m to 6.9m N • m
30 to 70 g • cm
(0.42 – 0.97 oz • inch)
0.15m N • m to 0.59m N • m
2 to 6 g • cm
(0.03 – 0.08 oz • inch)
4.8m N • m to 16.7m N • m
49 to 170 g • cm
(0.68 – 2.36 oz • inch)
HCD-GTR6/GTR6B/GTR7/GTR8/GTR8B
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