Electrical Adjustments - Sony HCD-M10 Service Manual

Micro hi-fi component system

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Table Of Contents

Table of Contents

DECK SECTION

0 dB=0.775V

1. Demagnetize the record/playback head with a head demagne-

tizer.

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 sup-

ply 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 ad-

justment.)

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

CH.

7. Switches and controls should be set as follows unless other-

wise specified.

Tape

Signal

P-4-A100

10 kHz, –10 dB

WS-48B

3 kHz, 0 dB

P-4-L300

315 Hz, 0 dB

Note: Standard Volume Point is –10 dBs at PHONES Output Level (32Ω

load resistance) during playbacking P-4-L300 Test Tape.

(DSG OFF, TREBLE/BASS CENTER)

Record/Playback Head Azimuth Adjustment

Procedure:

1. Mode : Playback

test tape

P-4-A100

(10kHz, –10dB)

set

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 1 dB of peak.

L-CH

output

peak

within

level

1 dB

R-CH

peak

screw

position

SECTION 5