XR-1100 (serv.man2) - Sony Car Audio Service Manual (repair manual). Page 10

10

0 dB= 0.775 V

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.

Procedure:
1. Put the set into the FWD PB mode.

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.

3. Check the phase in the FWD PB mode.

4. Repeat the above adjustment for the REV PB mode.
5. Check that output level difference between FWD PB mode

and REV PB mode is within 4 dB.

Mode

Tension Meter

Meter Reading

Forward

CQ-403A

more than 60 g

(more than 2.12 oz)

Reverse

CQ-403R

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.

Mode

Torque Meter

Meter Reading

2.45 – 5.39 mN•m

Forward

CQ-102C

(25 – 55 g•cm)

(0.35 – 0.76 oz•inch)

Forward

0.147 – 0.39 mN•m

CQ-102C

(1.5 – 4 g•cm)

Back Tension

(0.02 – 0.06 oz•inch)

2.45 – 5.39 mN•m

Reverse

CQ-102RC

(25 – 55 g•cm)

(0.35 – 0.76 oz•inch)

Reverse

0.147 – 0.39 mN•m

CQ-102RC

(1.5 – 4 g•cm)

Back Tension

(0.02 – 0.06 oz•inch)

4.90 – 14.71 mN•m

FF, REW

CQ-201B

(50 – 150 g•cm)

(0.69 – 2.08 oz•inch)

Type

 Signal

 Used for

P-4-A063

6.3 kHz, –10 dB

head azimuth adjustment

WS-48A

3 kHz, 0 dB

tape speed adjustment

Ω

°

°

°

°

Ω

Ω