HCD-RXD6AV, MHC-RXD6AV - Sony Audio Service Manual (repair manual). Page 14

14

1. Clean the following parts with a denatured alcohol-moistened

swab:
record/playback head

pinch rollers

erase head

rubber belts

capstan

idlers

2. Demagnetize the record/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 rated power

supply voltage unless otherwise noted.

40 to 70 g • cm

(0.56 - 0.97 oz • inch)

1 to 5 g • cm

(0.01 - 0.07 oz • inch)

55 to 140 g • cm

(0.76 - 1.94 oz • inch)

FWD

FWD

back tension

FF/REW

CQ-102C

CQ-102C

CQ-201B

1.

Demagnetize the record/playback head with a head
demagnetizer.

2.

Do not use a magnetized screwdriver for the adjustments.

3.

After the adjustments, apply suitable locking compound to the
parts adjusted.

4.

The adjustments should be performed with the rated power
supply voltage unless otherwise noted.

5.

The adjustments should be performed in the order given in this
service manual. (As a general rule, playback circuit adjustment
should be completed before performing recording circuit
adjustment.)

6.

The adjustments should be performed for both L-CH and R-
CH.

Note: Perform this adjustments for both decks.

Procedure:
1.

Mode : Playback

2.

Turn the adjustment screw and check output peaks. If the peaks
do not match for L-CH and R-CH, turn the adjustment screw
so that outputs match within 2 dB of peak.

P-4-A100

WS-48B

10 kHz, –10 dB

3 kHz, 0 dB

Azimuth Adjustment

Tape Speed Adjustment

test tape
P-4-A100
(10kHz, –10dB)

set

SPEAKER
terminal (JK401)

level meter

L-CH
peak

R-CH
peak

screw
position

output
level

within
2dB

L-CH
peak

R-CH
peak

screw
position

within 2dB