Mechanical Adjustments - Sony HCD-GNZ7D Service Manual

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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
demagnetizer.
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
FWD
FWD
back tension
REV
REV
back tension
TE
L 13942296513
FF/REW
FWD tension
REV tension
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MECHANICAL ADJUSTMENTS

pinch rollers
rubber belts
idlers
Torque meter Meter reading
3.06 N • m to 6.96 N • m
CQ-102C 31 to 71 g • cm
(0.43 – 0.98 oz • inch)
0.19 N • m to 0.58 N • m
CQ-102C 2 to 6 g • cm
(0.02 – 0.08 oz • inch)
3.06 N • m to 6.96 N • m
CQ-102RC 31 to 71 g • cm
(0.43 – 0.98 oz • inch)
0.19 N • m to 0.58 N • m
CQ-102RC 2 to 6 g • cm
(0.02 – 0.08 oz • inch)
6.96 N • m to 14.02 N • m
CQ-201B 71 to 143 g • cm
(0.98 – 1.99 oz • inch)
9.80 N • m
CQ-403A 100 g or more
(3.53 oz or more)
9.80 N • m
CQ-403R 100 g or more
(3.53 oz or more)
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SECTION 5
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HCD-GNZ7D/GNZ8D/GNZ9D
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