Mechanical Adjustments; Electrical Adjustments; Test Mode; Tape Deck Section - Sony XR-C2200 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.
• 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
10
Meter Reading
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)
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
5.89 mN•m
more than 60 g
(more than 2.12 oz)
SECTION 4

ELECTRICAL ADJUSTMENTS

TEST MODE

This set have the test mode function. In the test mode, FM Auto
Seek/Stop Level and AM Auto Seek/Stop Level Check can be per-
formed easier than it in ordinary procedure.
<Set the Test Mode>
1. Turn ON the regulated power supply. (All LEDs on the set
lights up, and the clock is displayed.)
[OFF]
Note: Press the button, if the clock is not displayed.
[4]
2. Push the presett button.
[5]
3. Push the preset button.
[1]
4. Press the preset button for more than two seconds.
5. Then the display indicates all lights, the test mode is set.
<Release the Test mode>
Push the [OFF] button.
See the adjustment location from on page 13 for the
adjustment.

TAPE DECK SECTION

1. The adjustments should be performed in the order given in
this service manual.
2. The adjustments should be performed for both L-CH and
R-CH.
Test Tape
Type Signal
P-4-A063 6.3 kHz, –10 dB
WS-48A 3 kHz, 0 dB
PB Head Azimuth Adjustment
Procedure:
1. Put the set into the FWD PB mode.
test tape
P-4-A063
(6.3 kHz, –10 dB)
10 k Ω
set
AUDIO OUT jack (CN400)
2. Turn the screw and check the output peak value. Adjust the
screw so that the peak value in channels L and R coincides
within 2 dB.
within
L-CH
2 dB
peak
output
level
R-CH
peak
screw
position
0 dB= 0.775 V
Used for
head azimuth adjustment
tape speed adjustment
level
meter
+
–
within
2 dB
angle
L-CH R-CH
peak
peak