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— 6 —

 Follow the disassembly procedure in the numerical order given.

1

Push the eject button. (two positions)

1

Remove the connectors.
• Main board (Six connectors)
• ST SW board (Four connectors)
• AMPLIFIER board (One connector)
• TRANS board (One connector)

3

Wire

2

Screw (BVTT 3x6)

6

Screw (BVTP 3x8)

7

Two screws (BVTP 3x8)

9

Main board

4

Three screws
(BVTP 3x8)

5

Front panel
assembly

CN201

CN703

CN3103, CN3107,
CN3108

CN1604

CN3101

CN1204

8

Two screws
(BVTP 3x8)

CN203

CN402

CN702

CN401

2

Two cassette lids

Eject button

Eject button

5

Mechanism deck

3

Three screws
(BVTP 2.6x8)

4

Four screws
(BVTP 2.6x8)

— 7 —

1

Screw (BVTP 3x8)

2

Two screws
(BVTP 3x8)

3

Two screws
(BVTP 3x8)

4

CD Mechanism
deck

2

BU bracket assembly

1

Yoke bracket

— 8 —

When the Disc table is installed, adjust the positions
of Roller cam and mark 

” as shown in the figure, then

set to the groove of disc table.

A

1

Screw (BVTP 3x8)

2

Screw (BVTP 3x8)

3

Bracket (BU)

4

Step screw

5

Disc table

A

— 9 —

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

swab:

record/playback heads

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 sup-

ply voltage unless otherwise noted.

1. Demagnetize the record/playback head with a head damagnetizer.
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 adjust-
ment.)

6. The adjustments should be performed for both L-CH and R-CH.
7. Switches and controls should be set as follows unless otherwise

specified.

Note: Perform this adjustments for both decks.

Procedure:
1. Mode : Playback

set

test tape
P-4-A100
(10kHz, –10dB)

main board
CN403
Pin 

3

 (L-CH)

Pin 

1

 (R-CH)

level meter

main board
CN403
Pin 

2

 (GND)

+

2 to 6 g • cm

(0.02 - 0.08 oz • inch)

36 to 61 g • cm

(0.5 - 0.84 oz • inch)

Torque

Torque meter

Meter reading

FWD

FWD
back tension

REV

FF/REW

REV
back tension

FWD tension

REV tension

CQ-102C

CQ-102C

CQ-102RC

CQ-102RC

CQ-201B

CQ-403A

CQ-403R

36 to 61 g • cm

(0.5 - 0.84 oz • inch)

2 to 6 g • cm

(0.02 - 0.08 oz • inch)

61 to 143 g • cm

(0.85 - 1.99 oz • inch)

100 g or more

(3.53 oz or more)

100 g or more

(3.53 oz or more)

Signal

Used for

Tape

Azimuth Adjustment

Tape Speed Adjustment

Level Adjustment

10 kHz, –10 dB

3 kHz, 0 dB

315 Hz, 0 dB

P-4-A100

WS-48B

P-4-L300