Mechanical Adjustments; Electrical Adjustments - Sony XR-CA300 Service Manual

SECTION 3

MECHANICAL ADJUSTMENTS

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. The adjustments should be performed with the power supply
voltage (14.4 V) unless otherwise noted.
Note: With this set, it is not necessary to apply suitable locking
compound to the parts after the azimuth adjustment.
• Torque Measurement
Mode Torque Meter
Forward CQ-102C
Forward
CQ-102C
Back Tension
Reverse CQ-102RC
Reverse
CQ-102RC
Back Tension
FF, REW CQ-201B
• Tape Tension Measurement
Mode Tension Meter
Forward CQ-403A
Reverse CQ-403R
TEST MODE
This set have the test mode function. In the test mode, FM RDS S-
Meter, FM Auto Seek/Stop Level and MW Auto Seek/Stop Level
adjustments can be performed easier than it in ordinary proce-
dure.
<Set the Test Mode>
1. Turn ON the regulated power supply. (All LEDs on the set
2. Push the
3. Push the
4. Press the
5. Then the display indicates all lights, the test mode is set.
Meter Reading
2.46 – 5.39 mN•m
<Release the Test mode>
(25 – 55 g•cm)
1. Push the
(0.35 – 0.76 oz•inch)
0.15 – 0.39 mN•m
(1.5 – 4 g•cm)
(0.02 – 0.06 oz•inch)
2.46 – 5.39 mN•m
(25 – 55 g•cm)
(0.35 – 0.76 oz•inch)
0.15– 0.39 mN•m
(1.5 – 4 g•cm)
(0.02 – 0.06 oz•inch)
4.91 – 14.70 mN•m
(50 – 150 g•cm)
(0.69 – 2.08 oz•inch)
Meter Reading
more than 5.89 mN•m
(more than 60 g)
(more than 2.12 oz)
SECTION 4

ELECTRICAL ADJUSTMENTS

lights up, and the clock is displayed.)
[OFF]
Note: Press the button, if the clock is not displayed.
[4]
button.
[5]
button.
[1]
button for more than two seconds.
[OFF]
button.
XR-CA300/L200
13