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13

5

cassette lid
assy (B)

3

cassette lid
assy (A)

2

two claws

4

two claws

1

Open the cassette lid
assy (A)/(B).

4

cassette holder assy (A)

0

two screws
(BVTP2.6)

1

three screws
(BVTP3 

×

 10)

qs

mech deck (TAPE)

qa

MD bracket

2

two screws
(BVTP3 

×

 10)

9

TC board

8

screw (BVTP2.6)

6

two screws
(BVTP2.6)

7

shield plate (MD)

5

cassette
holder
assy (B)

3

14

• The cold reset clears all data including preset data stored in the

RAM to initial conditions. Execute this mode when returning
the set to the customer.

Procedure:
1. Turn the power ON or set to the DEMO mode.
2. Press three buttons of 

x

, 

[CLEAR]

, and 

[DISPLAY]

 simul-

taneously.

3. The set is reset, and becomes DEMO mode.

• The AM tuning interval can be changed over 9 kHz or 10 kHz.
Procedure:
1. Press the

/1

button to turn the power ON.

2. Select the function “TUNER”, and press the 

[TUNER/BAND]

button to select the BAND “AM”.

3. Press the

/1

button to turn the power OFF.

4. Press the 

[ENTER]

 and

/1

buttons simultaneously to the tun-

ing interval is changed over.

•

This mode moves the optical pick-up to the position durable

to vibration, and initializes the RAM. Use this mode when return-
ing the set to the customer after repair.
Procedure:
1. Press the

/1

button to turn the power ON.

2. Press three buttons of 

[ENTER]

,

M

, and 

[CLEAR]

 simul-

taneously.

3. The set is turn the power off and initializes the RAM auto-

matically. A message “LOCK” is displayed on the fluorescent
indicator tube, and the CD delivery mode is set.

Procedure:
1. Press three buttons of

x

, 

[MENU]

, and 

[DISPLAY]

 simulta-

neously.

2. LEDs and fluorescent indicator tube are all turned on.
3. Press the 

[MENU]

 button and go to the version display mode.

Press the

m

button and go to the key and jog test mode.

4. To release from these mode, press three buttons in the same

manner as step 1, or disconnect the power cord.

Press the – 

.

button to display the version .

In the key check mode, the fluorescent indicator tube displays
“K 0 J0 V0”. Each time a button is pressed, “K” value in-
creases. However, once a button is pressed, it is no longer taken
into account.
“J” value increases like 1, 2, 3 ... if turn the 

[DISC ACCESS]

dial clockwise, or it decreases like 0, 9, 8 ... if turn the

[DISC ACCESS]

 dial counterclockwise.

“V” value increases like 1, 2, 3 ... if turn the 

[VOLUME]

 knob

clockwise, or it decreases like 0, 9, 8 ... if turn the 

[VOLUME]

knob counterclockwise.

• This mode can run the CD sled motor optionally. Use this mode,

for instance, when cleaning the optical pick-up.

Procedure:
1. Press the

/1

button to turn the power ON.

2. Select the function “CD”.
3. Press three buttons of 

[ENTER]

,

M

, and 

[REPEAT]

 simul-

taneously.

4. Set to the Sled Servo mode.
5. With the CD in stop status, press the

M

button to move the

optical pick-up to outside track and display “SLED OUT”, or
press the

m

button to move the optical pick-up to inside

track and display “SLED IN”.

6. To exit from this mode, perform as follows.

1) Move the optical pick-up to the most inside track.
2) Press three buttons of

x

, 

[CLEAR]

, and 

[DISPLAY]

simultaneously. (cold reset)

• Always move the optical pick-up to most inside track when

exiting from this mode. Otherwise, a disc will not be unloaded.

• Do not run the sled motor excessively, otherwise the gear can

be chipped.

15

•

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 demagne-

tizer.

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.

2.94 mN • m to 7.84 mN • m

31 to 71 g • cm

(0.43 – 0.98 oz • inch)

0.14 mN • m to 0.59 mN • m

2 to 6 g • cm

(0.02 – 0.08 oz • inch)

2.94 mN • m to 7.84 mN • m

31 to 71 g • cm

(0.43 – 0.98 oz • inch)

0.14 mN • m to 0.59 mN • m

2 to 6 g • cm

(0.02 – 0.08 oz • inch)

6.86 mN • m to 17.64 mN • m

71 to 143 g • cm

(0.98 – 1.99 oz • inch)

more than 0.98 N • m

100 g or more

(3.53 oz or more)

more than 0.98 N • m

100 g or more

(3.53 oz or more)

CQ-102C

CQ-102C

CQ-102RC

CQ-102RC

CQ-201B

CQ-403A

CQ-403R

FWD

FWD
back tension

REV

REV
back tension

FF/REW

FWD tension

REV tension

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 adjust.

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 ad-
justment should be completed before performing recording
circuit adjustment.)

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.

8. Set to  the DOLBY NR OFF.

• Test Tape

Tape

Signal

Used for

P-4-A100

10 kHz, – 10 dB

Azimuth Adjustment

WS-48A

3 kHz, 0 dB

Tape Speed Check

0 dB = 0.775 V

16

Mode: Playback

1. Insert the WS-48A into the deck B.
2. Press the nN button on the deck B.
3. Confirm that the frequency counter reads 3,000 

±

 60 Hz.

Sample value of Wow and Flutter: 0.3% or less W.RMS (JIS)

(WS-48A)

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 1dB of peak.

3. Mode: Playback

4. Repeat step 1 to 3 in playback (REV) mode.
5. After the adjustments, apply suitable locking compound to the

parts adjusted.

set

test tape
P-4-A100
(10 kHz, – 10 dB)

R-CH

oscilloscope

L-CH

R-CH

V

H

waveform of oscilloscope

in phase 45

°

90

°

135

°

180

°

good

wrong

MAIN AMP board
FRONT SPEAKER terminal (J501)
L-CH

+
–

set

test tape
WS-48A 
(3 kHz, 0 dB)

MAIN AMP board
FRONT SPEAKER terminal (J501)
L-CH, R-CH

frequency counter

 Perform this adjustments for both decks

Procedure:
1. Mode: Playback (FWD)

set

MAIN AMP board
FRONT SPEAKER terminal (J501)
L-CH, R-CH

+
–

level meter

test tape
P-4-A100
(10 kHz, – 10 dB)

Adjustment Location: Playback Head (Deck A).

Record/Playback/Erase Head (Deck B).

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