CHC-P11, CHC-P11J, HCD-H11, HCD-H11J - Sony Audio Service Manual (repair manual). Page 10

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1. The adjustment should be performed in the publication.

(Be sure to make playback adjustment at first.)

2. The adjustment and measurement should be performed for

both L-CH and R-CH.

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 Switch position

  DOLBY NR switch

: OFF

 TIMER switch

: OFF

DIRECTION MODE switch

: 

A

3. Deck section electrical adjustment are made in test mode by

pressing TUNER/BAND, DISPLAY, and FUNCTION at the

same time.

– Record Mode –

set

MD OUT

Level meter

+

–

MD IN

AF OSC

attenuator

600 

Ω

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Tape

Contents

Use

P-4-A 100

10 kHz, –10dB

Head Azimuth Adjustment

P-4-L300

315Hz, 0dB

Level Adjustment

WS-48B

3kHz, 0dB

Tape Speed Adjustment

0dB=0.775V

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When adjusting the azimuth remove, the Window (DIS) in the
center of the front panel. (Refer to page 8.)

1.

Forward Playback mode
Reverse Playback mode

set

MD OUT

+

-

test tape
P-4-A100
(10kHz, – 10dB)

Level meter

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

swab :

record/playback head pinch roller
erase head

rubber belts

capstan

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 sup-

ply voltage unless otherwise noted.

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Mode

Torque Meter

Meter Reading

Forward

CQ-102C

36 to 61g•cm

(0.50 – 0.84 oz•inch)

Forward 

Back Tension

CQ-102C

2 to 6g•cm

(0.026 – 0.082 oz•inch)

Reverse

CQ-102RC

36 to 61g•cm

(0.50 – 0.84 oz•inch)

Reverse

Back Tension

CQ-102RC

2 to 6g•cm

(0.026 – 0.082 oz•inch)

FF, REW

CQ-201B

61 to 143g•cm

(0.85 – 1.98 oz•inch)

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Mode

Torque Meter

Meter Reading

Forward

CQ-403A

more than 100g (3.53 oz)

Reverse

CQ-403R

more than 100g (3.53 oz)