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9

*

The cold reset clears all data including preset data stored in

the RAM to initial conditions. Execute this mode when
returning the set to the customer.

1. Press the

I/

1

button to turn the power on.

2. While pressing the

x

button, press the

I/

1

and  [DSGX]

buttons.

3. The message “RESET” is displayed and the set is reset.

*

All segments of liquid crystal display are tested, and the version

and released date of the micro computer are displayed.

1. Press the

I/

1

button to turn the power on.

2. While pressing the [DSGX] button, press the [DISPLAY] and

x

buttons.

Then all segments of liquid crystal display are turned on.

3. Press the [FUNCTION] button, the version and released date of

the micro computer are displayed.
example of display:

4. Press the [TUNER/BAND]  button, the model name and

distination are displayed.
example of display:

5. To exit from this mode, perform the step 2.

*

Either the 9 kHz step or 10 kHz step can be selected for the

AM channel step.

1. Set the FUNCTION to AM, and press the

I

/1

button to turn

the power off.

2. Press the [DISPLAY] button.
3. While pressing the [TUNING +] button, press the

I

/1

button.

4. The message “9K STEP” or “10K STEP” is displayed on the

liquid crystal display, and thus the channel step is changed
over.

0629 V008

Version of micro computer
(In this case, version 008)

released date of micro computer
(In this case, released of June 29)

JE   CE2

distination
(In this case, European model)

model name
(In this case, HCD-LFXX)

*

This mode is for switch the CD power supply on/off. Even if

this state pulls out AC plug, it is held.

1. Press the

I/

1

button to turn the power on.

2. Set the FUNCTION to CD.
3. Press the

I/

1

button again to turn the power off (standby).

4. Press the [DISPLAY] button.
5. While pressing the  

x

  button, press the

I/

1

button.

6. If turns power on and display “CD POWER”, then display

“ON” or “OFF”.

*

Number of repeat for CD playback is 5 times when the repeat

mode is “REPEAT”. This mode is used to enables CD to repeat
playback for limitless times.

1. Press the

I/

1

button to turn the power on.

2. Press the [FUNCTION] button to select “CD”.
3. Press three buttons of [DSGX],  

CD

 

u

    and  [DISPLAY]

simultaneously.

4. When the 5 repeat off mode is activated, “NO LIMIT” is

displayed on the liquid crystal display.

10

•

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

swab :

record/playback head

pinch roller

erase head

rubber belts

capstan

idlers

2. Demagnetize the record/playback head with a head

demagnetizer. (Do not bring the head magnetizer close to the
erase head.)

3. Do not use a magnetized screwdriver for the adjustments.
4. After the adjustments, appiy suitable locking compound to

the parts adjusted.

5. The adjustments should be performed with the rated power

supply voltage unless otherwise noted.

•

Mode

Torque Meter

Meter Reading

2.0 – 8.0 mN

⋅

m

FWD

CQ-102AS

(20 – 80 g

⋅

cm)

(0.28 – 1.12 oz

⋅

inch)

FWD

0.15 – 0.6 mN

⋅

m

Back Tension

CQ-102C

(1.5 – 6.0 g

⋅

cm)

(0.021 – 0.083 oz

⋅

inch)

5.0 – 17.7 mN

⋅

m

FF

CQ-201AS

(50 – 177 g

⋅

cm)

(0.7 – 2.48 oz

⋅

inch)

5.0 – 17.7 mN

⋅

m

REW

CQ-201B

(50 – 177 g

⋅

cm)

(0.7 – 2.48 oz

⋅

inch)

•

Mode

Tension Meter

Meter Reading

FWD

CQ-403A

more than 80 g

(more than 2.82 oz)

0 dB=1 

µ

V

Setting:
Function : TUNER
BAND button : AM

Setting:
Function : RADIO
RADIO BAND button: FM

•

Repeat the procedures in each adjustment several times, and

the  tracking adjustments should be finally done by the trimmer
capacitors.

•

Remove FM antenna in FM adjustment.

(

): AEP, East European, Russian, UK models

AM VT VOLTAGE ADJUSTMENT

Adjustment Part

Frequency Display

Reading on Digital Voltmeter

L852

530 (531) kHz

1.5 

±

 0.1 V

Confirmation

1710 (1602) kHz

8.0 (7.2) 

±

 0.5 V

(

): AEP, East European, Russian, UK models

AM TRACKING ADJUSTMENT

Adjust for a maximum reading on level meter

L851

530 (531) kHz

FM VT VOLTAGE ADJUSTMENT

Adjustment Part

Frequency Display

Reading on Digital Voltmeter

L805

87.5 MHz

1.75 

±

 0.1 V

Confirmation

108 MHz

6.2 

±

 0.5 V

AM RF signal 
generator

30% amplitude 
modulation by 
400 Hz signal

60 cm

set

loop antenna A

loop antenna B

FM RF signal

generator

1 kHz frequency
deviation by FM 75 kHz
signal
Output level: 
as low as possible

+
–

level meter

MAIN board
JW148
(GND)

MAIN board
JW403
(TUNER OUT L-ch)

set

MAIN board
CNP802 pin 

2

MAIN board
CNP802 pin 

1

digital voltmeter

JW821 (VT)

JW805 (GND)

10 k

Ω

MAIN board

11

FM TRACKING ADJUSTMENT

Adjust for a maximum reading on level meter

L804

98 MHz

Setting:
Function: TUNER
BAND button: FM

1. Tune the set to 98 MHz.
2. Adjust L806 so that modulation distortion may become the

best in the vicinity of the maximum value where the tuner out
level becomes -156Bs or more.

set

MAIN board
JW403
(TUNER OUT L-ch)

MAIN board
JW148 (GND)

Carrier frequency : 98 MHz
Modulation

: deviation by

FM 75 kHZ

Output level

: 60 dB

FM RF Signal 
generator

L851

AM Tracking

Adjustment

L805

FM VT

Voltage

Adjustment

L804

FM Tracking

Adjustment

L806

FM Detector

Adjustment

L852

AM VT

Voltage

Adjustment

JW403

(TUNER OUT L-ch)

JW402

(TUNER OUT R-ch)

JW148

(GND)

JW821

(VT)

CNP802

JW805

(GND)

3

1

12

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.

•

Tape

Signal

Used for

P-4-A063

6.3 kHz, -10 dB

Azimuth Adjustment

Remove the sheet (azimuth) before this adjustment.
After the end of adjustment, try to paste sheet (azimuth) peeled off
to be the same position.
Adjust the tape mechanism deck detaching it from the set when there
is no hole for the azimuth adjustment in the set.

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 1dB of peak.

3. Mode:  Playback

4. After the adjustments, apply suitable locking compound to

the pats adjusted.

Adjustment Location: Record/Playback/Erase Head
– When there is a hole for the azimuth adjustment –

– When there is no hole for the azimuth adjustment –

set

test tape
P-4-A063
(6.3 kHz, –10 dB)

oscilloscope

V

H

waveform of oscilloscope

in phase 45

°

90

°

135

°

180

°

good

wrong

MAIN board
PHONES jack
(J102)

Screw
position

L-CH
peak

within
1dB

Output
level

L-CH
peak

R-CH
peak

within
1dB

Screw
position

R-CH
peak

set

MAIN board
PHONES jack
(J102)

+
–

level meter

test tape
P-4-A063
(6.3 kHz, –10 dB)

mechanical deck
(H-21SB)