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– 13 –

2

guide (C)

1

three claws

– 14 –

See the adjustment location from on page 17 for the
adjustment.

Procedure:
1. Put the set into the FWD PB mode.

–1.5 to +2.5%

2,955 to 3,075 Hz

Specification: Constant speed

Adjustment Location: See page 17.

Preset 3 (DOLBY) button : OFF
SEL (VOL) button

: Maximum

set

+

–

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

speaker out terminal

4 

Ω

speed checker

or

frequency counter

set

test tape
P-4-D400
(400 Hz, 0 dB)

MAIN board

TP (DOLBY)

+
–

level meter







L-CH

R-CH

Pocedure:
1. Put the set into the FWD PB mode.
2. Adjust RV401 (L-CH) and RV301 (R-CH) so that level meter

reading is – 6 ± 1 dB (0.35 to 0.43 V).

3. Select the REV play mode, and confirm that level meter read-

ing is within the specification given above.

Adjustment Location: See page 17.

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

swab:

playback head

pinch roller

rubber belt

capstan

idlers

2. Demagnetize the 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 power supply

voltage unless otherwise noted.

•

Forward

CQ-102C

30 – 65 g•cm

(0.42 – 0.90 oz•inch)

Forward

CQ-102C

0.5 – 4.5 g•cm

Back Tension

(0.01 – 0.06 oz•inch)

Reverse

CQ-102RC

30 – 65 g•cm

(0.42 – 0.90 oz•inch)

Reverse

CA-102RC

0.5 – 4.5 g•cm

Back Tension

(0.01 – 0.06 oz•inch)

FF, REW

CQ-201B

60 – 200 g•cm

(0.83 – 2.78 oz•inch)

Forward

CQ-403A

more than 90 g

(more than 3.18 oz)

Reverse

CQ-403R

more than 90 g

(more than 3.18 oz)

•

This set have the test mode function. In the test mode, FM Auto
Scan/Stop Level and AM (MW) Auto Scan/Stop Level adjustments
can be performed easier than it in ordinary procedure.

<Set the Test Mode>
1. Set the “power select” switch (S801) is “A” position.
2. Turn ON the regulated power supply. (All LEDs on the set

lights up, and the clock is displayed.)
Note: Press the  OFF  button, if the clock is not displayed.

3. Push the preset 4 button.
4. Push the preset 5 button.
5. Press the preset 1 button for more than two seconds.
6. Then the display indicates all lights, the test mode is set.

<Release the Test mode>
1. Push the  OFF  button.
2. Return the “power select” switch (S801) to initially aet posi-

tion.

– 15 –

INTRO

REG

FM

INTRO

REG

FM RF signal

generator

Carrier frequency : 98.00 MHz
Output level

: 22 dB (12.6 

µ

V)

Mode

: mono

Modulation

: 1 kHz, 22.5 kHz deviation (30%)

0.01 

µ

F

set

antenna jack (J1)

When the tuner unit is defective, replace it by a new one be-
cause its internal block is difficult to repair.

Note:
Adjust the tuner section in the sequence shown below.
1. FM Auto Scan/Stop Level Adjustment
2. FM Noise Focus Adjustment
3. FM Stereo Separation Adjustment
4. FM Signal Meter Adjustment
5. MW Auto Scan/Stop Level Adjustment

SOURCE  button: FM

Procedure:
1. Set to the test mode. (See page 14).
2. Push the SOURCE button and set to FM.

Display

3. Adjust with the volume RV2 on TU1 so that the “FM” indica-

tion turns to “FM0” indication on the display window.
But, in case of already indicated “FM0”, turn the RV2 so that
put  out light “0” indication and adjustment.

Display

Adjustment Location: See page 17.

SOURCE  button: FM

Procedure:
1. Tune the 98.00 MHz.
2. The then output level is supposing that (A) dB.
3. Adjust with the volume RV3 on TU1 so that the output level is

(A) –32 ± 3 dB then signal generator input set to –20 dB.

Adjustment Location: See page 17.

SOURCE button: FM

FM RF signal

generator

Carrier frequency : 98.00 MHz
Output level

: 60 dB (1 mV)

Mode

: mono

Modulation

: 1 kHz, 75 kHz deviation (100%)

0.01 

µ

F

set

antenna jack (J1)

+
–

speaker out terminal

level meter

4 

Ω

L-CH

L-CH

A

B

R-CH

L-CH

Adjust RV4 on TU1

for minimum reading.

R-CH

R-CH

C

D

L-CH

R-CH

Adjust RV4 on TU1

for minimum reading.

L-CH Stereo separation: A-B
R-CH Stereo separation: C-D
The separations of both channels should be equal.

Specification: Separation more than 30 dB

Adjustment Location: See page 17.

FM RF signal

generator

Carrier frequency : 98.00 MHz
Output level

: 70 dB (3.2 mV)

Mode

: stereo

Modulation

: main: 1 kHz, 20 kHz deviation (22.6%)
  sub: 1 kHz, 20 kHz deviation (22.6%)
  19 kHz pilot: 7.5 kHz deviation (10%)

0.01 

µ

F

set

antenna jack (J1)

+
–

speaker out terminal

level meter

4 

Ω

– 16 –

999

INTRO

999

MW

INTRO

Make this adjustment after “FM Auto Scan/Stop Level Adjustment”.
Setting:

SOURCE button: MW

Procedure:
1. Set to the test mode. (See page 14.)
2. Push the SOURCE button and set to MW.

Display

SOURCE  button: FM

FM RF signal

generator

Carrier frequency : 98.00 MHz
Output level

: 35 dB (56.2 

µ

V)

Mode

: mono

Modulation

: no modulation

0.01 

µ

F

set

antenna jack (J1)

3. Push the preset  6  button.
4. Adjust RV1 on MAIN board so that the display indication is

“160”.

Display

Procedure:
1. Set to the test mode. (See page 14.)
2. Push the SOURCE button and set to FM.

Display

Specification: Display indication: 158 to 162

Adjustment Location: See page 17.

INTRO

REG

AM RF signal

generator

Carrier frequency : 999 kHz
30% amplitude
modulation by
1 kHz signal
Output level

: 33 dB (44.7 

µ

V)

(50 

Ω

)

set

AM dummy antenna

30 

Ω

15 pF

65 pF

antenna jack (J1)

3. Adjust with the volume RV1 on TU1 so that the “MW” indica-

tion turns to “MW0” indication on the display window.
But, in case of already indicated “MW0”, turn the RV1 so that
put out light “0” indication and adjustment.

Display

Adjustment Location: See page 17.

INTRO

REG