TC-TX5 - Sony Audio Service Manual (repair manual). Page 4

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

swab:

record/playback/earth head pinch roller
rubber belts

capstan

idlers

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

tizer. (Do not bring the head demagnetizer close to the erase
head.)

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.

CQ-102C

30-65 g•cm

FWD

(0.42-0.90 oz•inch)

FWD

1.5-6 g•cm

Back tension

(0.021-0.083 oz•inch)

CQ-102RC

30-65 g•cm

REV

(0.42-0.90 oz•inch)

REV

1.5-6 g•cm

Back tension

(0.021-0.083 oz•inch)

70-130 g•cm

FF, REW

CQ-201B

(0.98-1.80 oz•inch)

Note: The adjustment should be performed in the order given in

the service manual. As a rule, adjustments about playback
should be performed before those about recording.
The adjustments should be performed before for both L-CH
and R-CH.

• Switches and controls should be set as follows unless otherwise

specified.

DOLBY NR switch

: OFF

DIRECTION switch : 

A

0 dB=0.775 V

Type

Signal

Used for

P-4-A100

10 kHz, –10 dB

Azimuth Adjustment

P-4-L300

315 Hz, 0 dB

Playback Level Adjustment

WS-48B

3 kHz, 0 dB

Tape Speed Check

This set will get into test mode by shorting the pins of CN801 (2P)
on MAIN board before turning the power on.