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– 17 –

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 (S701) is “ON” 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. Set the “power select” switch (S701) is “OFF” position.

See the adjustment location from on page 21 for the ad-
justment.

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

–1.5 to +2.5%

2,955 to 3,075Hz

Specification: Constant speed

Adjustment Location: See page 21.

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

swab:

playback head

pinch roller

erase head

rubber belts

capstan

idles

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

35–65 g•cm

(0.49–0.90 oz•inch)

Forward

CQ-102C

0.5–5.0 g•cm

Back Tension

(0.01–0.07 oz•inch)

Reverse

CQ-102RC

35–65 g•cm

(0.49–0.90 oz•inch)

Reverse

CA-102RC

0.5–5.0 g•cm

Back Tension

(0.01–0.07 oz•inch)

FF, REW

CQ-201B

60–200 g•cm

(0.83–2.78 oz•inch)

Forward

CQ-403A

more than 60 g

Reverse

CQ-403R

(more than 2.12 oz)

•

Ω

– 18 –

When the tuner unit is defective, replace it by a new one because
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 Stereo Separation Adjustment
3. AM (MW) Auto Scan/Stop Level Adjustment
4. FM POLAR Adjustment

SOURCE button

: FM

µ

µ

Procedure:
1. Set to the test mode. (See page 17).
2. Push the SOURCE button and set to FM.

Display

FM

SHUF1

3. Push the preset 3 button.

Display

4. 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

FM

SHUF1

SHUF1

Adjustment Location: See page 21.

Procedure:
1. Put the set into the FWD PB mode.
2. Adjust RV121 (L-CH) and RV221 (R-CH) so that the level meter

reading is –6±1 dB (0.35 to 0.43 V).

Adjustment Location: See page 21.

Preset  3  (PLAY MODE) button: NR OFF
SEL (BAS) button

: Center

SEL (TRE) button

: Center

SEL (BAL) button

: Center

SEL (FAD) button

: Center

SEL (VOL) button

: Maximum

D-BASS control

: OFF

    

      

– 19 –

SOURCE button

: FM

µ

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 28dB

Adjustment Location: See page 21.

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

SOURCE button

: MW

µ

Ω

Ω

Procedure:
1. Set to the test mode. (See page 17.)
2. Push the SOURCE button and set to MW.

Display

999

MW

SHUF1

3. Push the preset 3 button.

Display

999

MW

SHUF1

3

4. 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

999

SHUF1

3

Adjustment Location: See page 21.

– 20 –

Setting:
SOURCE button: FM

µ

Ω

    

    

1. Tune the set to 69.5 MHz.
2. Connect the frequency counter to the TP (VCO) and adjust the

RV402 for a frequency of 31.25kHz ± 0.1 kHz.

3. Connect the level meter to the TP (PLT), receive the signal of

69.5 MHz (1kHz dev.) and adjust the reading of the level meter
to 0dB.

4. Set the modulation frequency of the FM RF signal generator to

31.25kHz (10kHz dev.) and adjust the L401 so that the output
level is peak of TP (PLT).

5. Adjust the RV401 so that the reading of the level meter to 13

± 0.5dB.

Adjustment Location: See page 21.