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17

shaft 

A

shaft 

B

shaft 

C

1

Fit the lever (LDG-A) on
shafts 

A

 – 

C

 and install it.

shaft 

A

shaft 

B

2

Fit the lever (LDG-B) on  
shafts 

A

 and 

B

 and 

install it.

3

 type-E stop ring 2.0  

gear (LDG-D)

5

 gear (LDG-FT)

6

 polyethylene washer

2

tension spring (LD-2)

2

tension spring (LD-1)

gear (LDG-FB)

lever (LDG-A)

hole

hole

4

Align hole in the gear (LDG-D)
with hole the lever (LDG-A). 

3

Move the lever (LDG-B)
in the arrow direction.

1

18

2

 guide (C)

1

 three claws

two precision screws
(P2 

×

 2)

Note: Mount the motor so that the 

angle between      of the 
motor and the hole for the 
screw      becomes 30

°

 as

shown in this figure.

capstan/reel motor
(M901)

30˚

19

Mode

Tension Meter

Meter Reading

Forward

CQ-403A

more than 90 g

(more than 3.18 oz)

Reverse

CQ-403R

more than 90 g

(more than 3.18 oz)

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

swab:

playback head

pinch roller

rubber belt

capstan

idler

2. Demagnetize the playback head with a head demagnetizer.
3. Do not use a magnetized screwdriver for the adjustments.
4. The adjustments should be performed with the power supply

voltage (14.4 V) unless otherwise noted.

Mode

Torque Meter

Meter Reading

2.95 – 6.73 mN•m

Forward

CQ-102C

30 – 65 g•cm

(0.42 – 0.90 oz•inch)

Forward

0.05 – 0.44mN•m

CQ-102C

0.5 – 4.5 g•cm

Back Tension

(0.01 – 0.06 oz•inch)

2.95 – 6.73 mN•m

Reverse

CQ-102RC

(25 – 55 g•cm)

(0.42 – 0.90 oz•inch)

Reverse

0.05 – 0.44mN•m

CQ-102RC

0.5 – 4.5 g•cm

Back Tension

(0.01 – 0.06 oz•inch)

5.89 – 19.61 mN•m

FF, REW

CQ-201B

60 – 200 g•cm)

(0.83 – 2.78 oz•inch)

<Set the Test Mode>
1. Turn ON the regulated power supply. (All LEDs on the set

lights up, and the clock is displayed.)

 Press the 

[OFF]

 button, if the clock is not displayed.

2. Push the preset 

[4]

 button.

3. Push the preset 

[5]

 button.

4. Press the preset 

[1]

 button for more than two seconds.

5. Then the display indicates all lights, the test mode is set.

<Release the Test mode>
1. Push the 

[OFF]

 button.

Procedure:
1. Put the set into the FWD PB mode.
2. Adjust adjustment resistor for inside capstan motor so that the

reading on the frequency counter becomes in 3,015 Hz.

Specified Value: 2,955 to 3,075 Hz

Adjustment Location: See page 20.

0 dB=0.775 V

frequency counter

test tape 
WS-48A
(3 kHz, 0 dB)

set

AUDIO OUT REAR jack (CN300)

–

+

10 k

Ω

20

[SOURCE]

 button

: ON

Preset 

[MENU]

 (PLAY MODE) and

[DISC   ]

 buttons

: NR off

[SOUND] (BAS) button

: Center

[SOUND] (TRE) button

: Center

[SOUND] (BAL) button

: Center

[SOUND] (FAD) button

: Center

[+]

 (VOL) button

: Maximum

Procedure:
1. Put the set into the FWD PB mode.
2. Adjust RV400 (L-CH) and RV401 (R-CH) so that the level

meter reading is –6±0.5 dB (0.37 to 0.41 V).

Tuner section adjustments are done automatically in this set.

      

–

– SET  UPPER  VIEW –

– SET  BOTTOM  VIEW –

TP (DOLBY-R)

Dolby Level
Adjustment

TP (DOLBY-L)