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13

Press the STOP button and POWER OFF button at the same time.
All preset data is re-set to the initial (default) value.

Press the STOP button and DISC 1 button at the same time.
Model name is displayed.

Press the STOP button and DISC 2 button at the same time.
Destination is displayed.

Press the STOP button and DISC 3 button at the same time.
Version number of the microprocessor is displayed.

Press the STOP button and DISC SKIP/EX-CHANGE button at the
same time.
Set discs to DISC 1 and DISC 3.  The following operations are
repeated when aging
starts:
1. DISC 1: TOC Read
2. Plays back the last music of the DISC 1
3. DISC 3 : TOC Read
4. Plays back the last music of the DISC 3.
5. STOP
6. Tray is open and closed.

Press the STOP button and PLAY A button at the same time.
Insert a commercially available cassette tape (10 min) to the  decks
A and B.  When aging starts, each tape is rewound and the following
operations are repeated:
1. TAPE A: FWD PLAY for one minute
2. TAPE A: FWD STOP for one second
3. TAPE A: FWD PLAY for three minutes
4. TAPE A: FWD FF to tape end
5. TAPE B: FWD PLAY for one minute
6. TAPE B: FWD REC PAUSE for one second
7. TAPE B: FWD REC for three minutes
8. TAPE B: FWD FF to tape end
9. TAPE B: REV PLAY for one minute
10. TAPE B: REV REC PAUSE for one second
11. TAPE B: REV REC for three minutes
12. TAPE B: REV FF to tape end.

Press the STOP button and OPEN/CLOSE button at the same time.
The message “CD S - -” is displayed on the screen.  The sled is
moved to the outer circumference while the FF button is pressed.
Also, the SLED is moved to the inner circumference while the REW
button is pressed.  After pressing the PLAY button, FOCUS is turned
ON, CLV-S is set, TRACKING and SLED servos are turned OFF
and ADDRESS 3 = 3F, 37 is set.

Press the STOP button and DBFB button at the same time.
All displays are turned ON.

Press the STOP button and DISPLAY button at the same time.
The balance adjustment value is displayed.

Press the STOP button and FILE SELECT button at the same time.
Function of the pressed key is displayed.

14

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

swab:
record/playback head

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.

40 to 70 g • cm

(0.56 - 0.97 oz • inch)

1 to 5 g • cm

(0.01 - 0.07 oz • inch)

55 to 140 g • cm

(0.76 - 1.94 oz • inch)

FWD

FWD

back tension

FF/REW

CQ-102C

CQ-102C

CQ-201B

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 adjusted.

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.

Note: Perform this adjustments for both decks.

Procedure:
1.

Mode : Playback

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 2 dB of peak.

P-4-A100

WS-48B

10 kHz, –10 dB

3 kHz, 0 dB

Azimuth Adjustment

Tape Speed Adjustment

test tape
P-4-A100
(10kHz, –10dB)

set

SPEAKER
terminal (JK401)

level meter

L-CH
peak

R-CH
peak

screw
position

output
level

within
2dB

L-CH
peak

R-CH
peak

screw
position

within 2dB

15

3.

Mode: Playback

4.

After the adjustments, apply suitable locking compound to the
parts adjusted.

Adjustment Location:
Remove the cassette lid before adjustment (See page 9)

Procedure:
1.

Mode: Playback

2.

Adjust the SFR601 so that the frequency counter reads 3,000
Hz ± 90Hz.

Adjustment Location: MAIN board

W. RMS (JIS) within 0.3%
(test tape: WS-48B)

test tape
P-4-A100
(10kHz, –10dB)

SPEAKER
terminal (JK401)
(L-CH)

SPEAKER
terminal (JK401)
(R-CH)

oscilloscope

L

R

Waveform of oscilloscope

in phase

45˚

90˚

135˚

180˚

good

wrong

Adjustment screws
REC/PB head (deck B)
or PB head (deck A)

test tape
WS-48B
(3kHz, 0dB)

set

SPEAKER
terminal (JK401)

frequency counter

+

–

Tape Speed

CN604

SFR601

16

0 dB=1µV

Procedure:
1.

Set the reception frequency of the unit to 530 kHz.

2.

Adjust L107 for 1.2 ± 0.05 V reading on the DC voltmeter.

3.

Set the reception frequency of the unit to 1,710 kHz.

4.

Confirm that the voltage reading on the DC voltmeter is within
8.0 ± 0.5 V.

Adjustment Location:  MAIN board (See page 17)

Procedure:
1.

Tune the set to 600 kHz.

2.

Set the output of AM RF SSG so that the input level of the set
will become 60 dB (µV/m).

3.

Adjust L104 so that when the waveform on the oscilloscope is
maximum, no noise appears.

4.

Tune the set to 1,400 kHz.

5.

Adjust TC101 so that when the waveform on the oscilloscope
is maximum, no noise appears.

• Repeat the procedures in each adjustment several times, and the

tracking adjustment should be finally done by the trimmer
capacitors.

Adjustment Location: MAIN board (See page 17)

Main board

TP1

G
VT

DC voltmeter

+

–

AM RF  SSG

loop antenna

set

loop antenna
(Supplied accessories)

60 cm

AM ANTENNA
terminal (TM1)

30% amplitude
modulation by
400 Hz signal

Field strength dB (

µ

V/m) =SSG output level dB (

µ

V/m) –26 dB.