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– 5 –

Press the ENTER/NEXT and FUNCTION buttons simultaneously.
Then press the MENU 1 button with the following 4 seconds to set the Test Mode.
 1. The message “W3 NA (destination) ” appears on the screen and a 32 cycle square wave of the subcrystal oscillator is output from Pin 24

(AUB. OUT).

 2. Press any key to rotate JOG and all FL indicators light up.

When you rotate JOG at this point, the display changes as follows.
N all FL indicators on Nn FL pattern 1 Nn FL pattern 2 n
The changes and all LED indicators light up.

 3. Again press any key to set the key count check. The following display appears.

0

0

0

The numbers in order from left to right show ; the number of keys pressed, the JOG count (1 click per 4 counts), and the VOL  count.
(1 cycle is a count of 96.)

 4. Press the Power button to reset to the factory settings.

Press the ENTER/NEXT and FUNCTION buttons simultaneously.
Then press the MENU 2 button with the following 4 seconds to set the Test Mode.
 1. The message “AMP TEST” appears on the screen. Press the MENU button to call up the Equalizer Curve for the Amp Test.

However when the function is set to the tuner, use the MENU button to call up each tuner preset from 1 through 5.

 2. Press the Power button to reset to the factory settings.

Press the ENTER/NEXT and FUNCTION buttons simultaneously.
Then press the MENU 3 button with the following 4 seconds to reset the microcomputer to the factory settings.

Press the ENTER/NEXT and FUNCTION buttons simultaneously.
Then press the MENU 4 button with the following 4 seconds.
The message “XTAL TEST ” appears on the screen and a 32 cycle square wave of the subcrystal oscillator is output from Pin 24 (AUB.OUT).
In addition, a square wave of the same frequency as the subcrystal oscillator, is output from 4PIN (POWER. ON/OFF).
Press the Power button to reset to the factory settings.

– 6 –

Band : SW

Procedure :
1. Connect digital Voltmeter to diode D1 center lead and ground.
2. Adjust for a following value reading on digital Voltmeter.

Set frequency

Adjustment 

part 

Reading on digital 

voltmeter

SW

5.95MHz

T2

1.2Vdc

17.9MHz

CV2

8.5Vdc

Band : SW

  

+

–

AM RF signal
generator

AM ANTENNA terminal 

 SPEAKER terminal 

Modulation : 400Hz

   30% modulation

set

VTVM

Procedure :
Adjust for maximum reading on VTVM.

Set frequency

Adjustment 

part 

SW

7MHz

T1

17MHz

CV1

r

 Repeat the procedures is each adjustment several times, and the

frequency coverage and tracking adjustment should be finally done
by the trimmer capacitors.

Adjustment Location : TCB board

The adjustment should be performed in the publication.
(MW 

n FM n SW)

As a front-end (FE1) is difficult to repair if faulty, replace
it with new one.

r

Abbreviation

AUS : Australian

AR

: Argentine

EA

: Saudi Arabia

HK

: Hong Kong

SP

: Singapore

JE

: Tourist

MY

: Malaysia

TH

: Thailand

CND : Canadian
E2

: Tuner sections SW BAND do not exist.

E3

: Tuner sections SW BAND exist.

Setting :
Band : MW

set

AM RF signal
generator

loop antenna A

loop antenna B

Carrier frequency  : 999kHz (at 9kHz step)

1,050kHz (at 10kHz step)

Procedure :
1. Set loop antenna A so that the loop antenna B input level becomes

55dB

µ

/m (0.6mV/m)

2. Tune the set to 999kHz or 1,050kHz.
3. Adjust RV41 so that the  TUNED indicatior goes on.

 Always make the tuning level adjustment first.

(Since it affects the FM tuning level.)

Setting :
Band : FW

FM RF stereo signal
generator

75 

Ω

 coaxial

FM ANTENNA terminal 

set

Carrier frequency : 98MHz 
Modulation

: OFF

Output level

: 0.018mV (25dB  ) 

µ

Procedure :
1. Tune the set to 98MHz.
2. Adjust RV42 so that the  TUNED indicator goes on.

– 7 –

] – 

Component side

 –

D1

FE1

T1 : SW Tracking Adjustment

RV42 : FW Tuned indication Lighting Level

RV41 : MW Tuned indication Lighting Level

CV1 : SW Tracking Adjustment

T2 : SW Control Voltage Adjustment

CV2 : SW Control Voltage Adjustment

– 8 –

1

VDD

–

Power supply.

2

CLK OUT

O

Direct output for communications with HCD-W55.

3

RDY IN

I/O

Direct input / output for communications with HCD-W55.

4

POWER ON / OFF

O

L : Relay ON

5

MUTE

O

Mute output to transistor.   L : Mute ON

6

PROLOGIC LATCH

O

Latch output to IC3001 (LA2785).

7

VOL. LATCH

O

Latch output to IC2002 (TC9210P).

8

427LAT

O

Latch output to IC105 (M62427FP).

9

LED LAT

O

Latch output to IC504 (M66313FP-200C).

10

RESET

I

Reset terminal.

11

X2

–

Oscillator connection terminal. (5MHz)

12

X1

–

Oscillator connection terminal. (5MHz)

13

IC

–

Ground connection.

14

XT2

–

Oscillator connection terminal. (32MHz)

15

XT1

–

Oscillator connection terminal. (32MHz)

16

VDD

–

Power supply.

17

BACK UP

I

AC Power supply OFF.

18

COM CLK

O

Transfer clock output serial data.

19

COM DATA

O

Serial data output.

20

ST DATA IN

I

Serial data input from IC 1.

21

ST CE

O

Chip enable output to IC 1.

22

STEREO

I

Stereo signal input.

23

TUNED

I

Tuned signal input.

24

AUB OUT

O

Audio bus output.

25

AVSS

–

Ground.

26

PROLOGIC. RY

O

Rear and center speaker relay ON/OFF control.

27

SUFFIX

I

Input for model select.

28

SPE

I

Spectrum analyzer signal input.

29

SPE

I

Spectrum analyzer signal input.

30

SPE

I

Spectrum analyzer signal input.

31

SPE

I

Spectrum analyzer signal input.

32

KYE 1

I

Key data input (A/D converter).

33

KYE 2

I

Key data input (A/D converter).

34

AVDD

–

Power supply for anlog.

35

AV REF

–

Reference voltage for A/D converter.