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13

* Tape function
1. When a tape is inserted in Deck B and recording is started, the

input source function selects VIDEO automatically.
When  CD SYNC/HI-DUB  button is pressed during Rec in
function, ALC is turned on.

2.   When   x  button is pressed to stop recording, the Tape (Deck)

B is selected and tape is rewound, tape is rewound using  m
button, tape is stops at around the record-starting position and
playback of the recorded portion of the tape is started.  If PAUSE
is inserted even once during recording, tape is rewound to the
position around the PAUSE position and is played back.

3.

When  CD SYNC / HI-DUB  button is pressed during playback
of Deck B, either normal speed or high speed can be selected
by this button.

* AMS Test Mode
1.

Set TAPE function

2.

Select the desired loop by pressing the  PLAY MODE  button.
Insert a test tape AMS-110A or AMS-120 to Deck A.

3.

Press the  SPECTRUM  button to enter the AMS test mode.

4.

After a tape is rewound first, the FF AMS is checked, and the
mechanism is shut off after detecting the AMS signal twice.

5.

Then the REW AMS is checked and the mechanism is shut off
after detecting the AMS signal twice.

6.

When the check is complete, a message of either OK or NG
appears.

* To return to normal mode again.
1.

When you want to exit this mode, press the  ?/1  button.

2.     The cold reset is enforced at the same time.

• This mode is used to switch ON and OFF the VACS (Variable

Attenuation Control System).

Procedure:
Press the  ENTER  and  SPECTRUM  buttons simultaneously.  The
message “VACS OFF” or “VACS ON” appears.

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

instance, when cleaning the pickup.

Procedure:
1. Press ?/1 button to turn the set ON.
2. Select the function “CD”.
3. Press three buttons x ,  ENTER , and  OPEN/CLOSE  simul-

taneously.

4. The CD service mode is selected.
5. With the CD in stop status, press 

M

 button  to move the pickup

to outside track, or press 

m

 button to inside track.

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

1) Move the pickup to the most inside track.
2) Press  ?/1  button to turn the set OFF.

 • Always move the pickup 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.

• This mode moves the pickup to the position durable to vibra-

tion. Use this mode when returning the set to the customer after
repair.

Procedure:
1. Press

1/u button to turn the set ON.

2. Press  three  buttons  x  , ENTER and GAME  simultaneously.
3. After the "STANDBY" display blinks six times, a message

“LOCK” is displayed on the fluorescent indicator tube, and the
CD ship mode is set.

• This mode moves the pickup to the position durable to vibra-

tion. Use this mode when returning the set to the customer after
repair.

Procedure:
1. Press

1/u button to turn the set ON.

2. Press  CD  button and  

1/u   button simultaneously.

3. After the "STANDBY" display blinks six times, a message

“LOCK” is displayed on the fluorescent indicator tube, and the
CD ship mode is set.

+

–

14

0 dB=0.775 V

1. Demagnetize the record/playback head with a head

demagnetizer.

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 adjustment
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 otherwise

specified.

• Test Tape

P-4-A100

10 kHz, –10 dB

Azimuth Adjustment

WS-48B

3 kHz, 0 dB

Tape Speed Adjustment

P-4-L300J

315 Hz, 0 dB

Level Adjustment

  Perform this adjustments for both decks

Procedure:
1. Mode:  Playback

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

supply voltage unless otherwise noted.

3

1

2

3.06 N • m to 6.96 N • m

31 to 71 g • cm

(0.43 – 0.98 oz • inch)

0.19 N • m to 0.58 N • m

2 to 6 g • cm

(0.02 – 0.08 oz • inch)

3.06 N • m to 6.96 N • m

31 to 71 g • cm

(0.43 – 0.98 oz • inch)

0.19 N • m to 0.58 N • m

2 to 6 g • cm

(0.02 – 0.08 oz • inch)

6.96 N • m to 14.02 N • m

71 to 143 g • cm

(0.98 – 1.99 oz • inch)

9.80 N • m

100 g or more

(3.53 oz or more)

9.80 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

15

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. After the adjustments, apply suitable locking compound to the

pats adjusted.

Adjustment Location: Playback Head (Deck A).

Record/Playback/Erase Head (Deck B).

Start the Tape Speed adjustment as below after setting to the test
mode.
In the test mode, the tape speed is high during pressing the

 CD SYNC/HI-DUB 

 button.

Procedure:
1. Turn the power switch on.
2. Press the x button,  ENTER  button and  DISC 3  button

simultaneously.
(The “TEST MODE” on the fluorescent indicator tube display
while in the test mode.)
To exit from the test mode, press the ?/1 button.

Mode:  Playback

1. Insert the WS-48B into the deck B.
2. Press the gG button on the deck B.
3. Press the  CD SYNC/HI-DUB  button in playback mode.

Then at HIGH speed mode.

4. Adjust RV1001 on the LEAF SW board so that frequency

counter reads 6,000 

± 30 Hz.

5. Press the  CD SYNC/HI-DUB  button.

Then back to NORMAL speed mode.

6. Adjust RV1002 on the LEAF SW board so that frequency

counter reads 3,000 

± 15 Hz.

Adjustment Location:  LEAF SW board

Procedure:
Mode:  Playback

1. Confirm that level difference between the channels is with 

±

0.5 dB.

2. After check, adjust the following RVs.

Deck A is RV302 (L-CH), Deck B is RV303 (L-CH) so that
adjustment within adjustment level as follows.

CN301 PB level:  334.4 to 748.7 mV (–7.3 to  –0.3 dB)

Adjustment Location:  MAIN board

Sample Volue of Wow and Flutter: 0.3% or less W. RMS

(WS-48B)

1

°

°

°

°

2

3

3

1

3

1

forward

reverse

16

4. Mode:  Record

5. Mode:  Playback

6. Confirm the play back signal recorded in step 3 becomes

adjustable level as follows.
If these levels are not adjustable level, adjust the RV301 (L-
CH) and RV351 (R-CH) on the MAIN board to repeat steps 4
and 5.

Adjustable level:
CN301 PB level:  47.2 to 53.0 mV (–24.3 to –23.3 dB)
Adjustment Location:  MAIN board

[MAIN  BOARD] (Component Side)

[LEAF  SW  BOARD]  (Component Side)

Procedure:
In the MC test mode, the “REC memory mode” is convenient for
this adjustment. In the “REC memory mode” , when the REC starts
the input signal FUNCTION is switched to VIDEO automatically.
When the REC stops, the tape returns near to the recording start
position.

1. Press  MD (VIDEO)  button to select VIDEO. (This step is not

necessary if the above test mode has already been set.)

2. Insert a tape into deck B.
3. After press  REC PAUSE/START  button, press REC PAUSE/

START button, then recording start.

4. Mode:  Record

5. Mode:  Playback

6. Confirm the playback signal recorded in step 3 becomes

adjustable level as follows.
If these levels are not adjustable level, adjust the RV304 (L-
CH) and RV354 (R-CH) on the MAIN  board to repeat steps 4
and 5.

Adjustable level: Playback output of 315 Hz to playback output

of 10 kHz:  

±1.0 dB

Adjustment Location:  MAIN board

Procedure:
In the MC test mode, the “REC memory mode” is convenient for
this adjustment. In the “REC memory mode” , when the REC starts
the input signal FUNCTION is switched to VIDEO automatically.
When the REC stops, the tape returns near to the recording start
position.

1. Press  MD (VIDEO)  button to select VIDEO. (This step is not

necessary if the above test mode has already been set.)

2. Insert a tape into deck B.
3. After press  REC PAUSE/START  button, press REC PAUSE/

START button, then recording start.

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Ω

3

1

Ω

3

1

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

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

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T11

RV11

RV351

RV354

RV304

RV303

RV302

RV301

CN301

CN304

CN302

CN303

1

3