Sony Ericsson XR-C7500RX - Manual (Page 15)

15
SECTION 5
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 Torque Meter Meter Reading
2.95 – 6.37 mN•m
Forward CQ-102C (30 – 65 g•cm)
(0.42 – 0.90 oz•inch)
Forward 0.05 – 0.44 mN•m
CQ-102C (0.5 – 4.5g•cm)
Back Tension
(0.01 – 0.06 oz•inch)
2.95 – 6.37 mN•m
Reverse CQ-102RC (30 – 65 g•cm)
(0.42 – 0.90 oz•inch)
Reverse 0.05 – 0.44 mN•m
CQ-102RC (0.5 – 4.5g•cm)
Back Tension
(0.01 – 0.06 oz•inch)
5.89 – 19.61 mN•m
FF, REW CQ-201B (60 – 200 g•cm)
(0.83 – 2.78 oz•inch)
Mode Tension Meter Meter Reading
more than 8.83 mN•m
Forward CQ-403A (more than 90 g)
(more than 3.18 oz)
more than 8.83 mN•m
Reverse CQ-403R (more than 90 g)
(more than 3.18 oz)
SECTION 6
ELECTRICAL ADJUSTMENTS
TEST MODE
This set has the test mode function.
1. Turn ON the regulated power supply. (The clock is displayed)
Note: Press the [OFF] button, if the clock is not displayed.
2. Press the preset [4] button.
3. Press the preset [5] button.
4. Press the preset [1] button for more than two seconds.
5. Then the display indicates all lights, the test mode is set.
1. Press the
[OFF] button.