Sony XR-C7220R Service Manual

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SECTION 4
MECHANICAL ADJUSTMENTS
• Tape Tension Measurement
1. Clean the following parts with a denatured-alcohol-moistened
swab:
playback head pinch roller
rubber belt capstan
idler
2. Demagnetize the 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 power supply
voltage unless otherwise noted.
• Torque Measurement
Mode Tension Meter Meter Reading
Forward CQ-403A
more than 90 g
(more than 3.18 oz)
Reverse CQ-403R
more than 90 g
(more than 3.18 oz)
Mode Torque Meter Meter Reading
Forward CQ-102C
30 – 65 g•cm
(0.42 – 0.90 oz•inch)
Forward
CQ-102C
0.5 – 4.5g•cm
Back Tension (0.01 – 0.06 oz•inch)
Reverse CQ-102RC
30 – 65 g•cm
(0.42 – 0.90 oz•inch)
Reverse
CQ-102RC
0.5 – 4.5g•cm
Back Tension (0.01 – 0.06 oz•inch)
FF, REW CQ-201B
60 – 200 g•cm
(0.83 – 2.78 oz•inch)

Sony XR-C7220R Specifications

General

Brand	Sony
Model	XR-C7220R
Category	Car Receiver
Language	English