Panasonic SA-AKX36LMK, SB-AKX36, SA-AKX36 Service Manual

© Panasonic Corporation 2013. All rights reserved.
Unauthorized copying and distribution is a violation
of law.

MEX1305005CE

CD Stereo System

Model No. SA-AKX36LMK

Product Color: (K)...Black Type

TABLE OF CONTENTS

1 Safety Precautions

1.1. General Guidelines

1.3. Before Repair and Adjustment

1.4. Protection Circuitry

1.5. Power Supply using SMPS

1.6. Safety Parts Information

2 Warning

2.1. Prevention of Electrostatic Discharge (ESD)
to Electrostatically Sensitive (ES) Devices

2.2. Precaution of Laser Diode

2.3. Service caution based on Legal restrictions

2.4. Handling Precautions for Traverse Unit

2.5. Grounding for electrostatic breakdown
prevention

3 Service Navigation

3.1. Service Information

3.2. Firmware Update Procedure

4 Specifications
5 General/Introduction

5.1. Media Information

6 Location of Controls and Components

6.1. Remote Control Key Button Operation

6.2. Main Unit Key Button Operation

7 Installation Instructions

7.1. Speaker and A/C Connection

Please refer to the original service manual for:

CD Mechanism Unit , Order No. PSG1102001CE
Speaker system SB-AKX36LM-K, Order No. MEX1305006CE

Nota: El idioma original de este Manual de Servicio es en idioma inglés, sin embargo algunas notas
aquí mencionadas serán escritas en español para mejor descripción para Centros de Servicio de México.

8 Service Mode

8.1. Cold-Start

8.2. Doctor Mode Table

8.3. Reliability Test Mode (CD Mechanism Unit)

8.4. Self-Diagnostic Mode

8.5. Self-Diagnostic Error Code Table

8.6. Sales Demonstration Lock Function

9 Troubleshooting Guide

10 Disassembly and Assembly Instructions

10.1. Screw Types

10.2. Disassembly Flow Chart

10.3. Main Components and P.C.B. Locations

10.4. Disassembly of Top Cabinet

10.5. Disassembly of Front Panel Unit

10.6. Disassembly of Panel P.C.B., LED P.C.B. and
Mic P.C.B.

10.7. Disassembly of Remote Sensor P.C.B.

10.8. Disassembly of USB P.C.B.

10.9. Disassembly of CD Lid

10.10. Disassembly of Rear Panel

10.11. Disassembly of Main P.C.B.

10.12. Disassembly of Digital Amplifier IC (IC6000)

10.13. Disassembly of SMPS Module

10.14. Disassembly of CD Mechanism Unit

10.15

. Disassembly of CD Interface P.C.B.

10.16. Disassembly of Fan Unit

11 Service Position

11.1. Checking of Panel P.C.B., LED P.C.B. and Mic
P.C.B.

11.2. Checking of Main P.C.B. (Side B)

11.3. Checking of Main P.C.B. (Side A)

12 Block Diagram

12.1. Servo & System Control

12.2. IC Terminal Chart

12.3. Audio

12.4. Power Supply

13 Wiring Connection Diagram
14 Schematic Diagram

14.1. Schematic Diagram Notes

14.2. MAIN (CD Servo/Micon/Damp) Circuit

14.3. Panel Circuit

14.4. USB, Music Port, Memory LED, Remote
Sensor & CD Interface Circuit

15 Printed Circuit Board

15.1. Main P.C.B.

15.2. Panel, USB, Music Port & Memory LED
P.C.B.

15.3. Remote Sensor & CD Interface P.C.B.

16 Appendix Information of Schematic Diagram

16.1. Voltage & Waveform Chart

17 Exploded View and Replacement Parts List

17.1. Exploded Vi

ew and Mechanical replacement

Part List

17.2. Electrical Replacement Part List

1 Safety Precautions

1.1. General Guidelines

1. IMPORTANT SAFETY NOTICE
There are special components used in this equipment which are important for safety. These parts are marked by in the
Schematic Diagrams, Circuit Board Layout, Exploded Views and Replacement Parts List. It is essential that these critical parts
should be replaced with manufacturer’s specified parts to prevent X-RADIATION, shock, fire, or other hazards. Do not modify
the original design without permission of manufacturer.

2. An Isolation Transformer should always be used during the servicing of AC Adaptor whose chassis is not isolated from the AC
power line. Use a transformer of adequate power rating as this protects the technician from accidents resulting in personal
injury from electrical shocks. It will also protect AC Adaptor from being damaged by accidental shorting that may occur during
servicing.

3. When servicing, observe the original lead dress. If a short circuit is found, replace all parts which have been overheated or
damaged by the short circuit.

4. After servicing, see to it that all the protective devices such as insulation barriers, insulation papers shields are properly
installed.

5. After servicing, make the following leakage current checks to prevent the customer from being exposed to shock hazards.

1.1.1. Leakage Current Cold Check

1. Unplug the AC cord and connect a jumper between the two prongs on the plug.

2. Measure the resistance value, with an ohmmeter, between the jumpered AC plug and each exposed metallic cabinet part on
the equipment such as screwheads, connectors, control shafts, etc. When the exposed metallic part has a return path to the
chassis, the reading should be between 1M: and 5.2M:.
When the exposed metal does not have a return path to the chassis, the reading must be

1.1.2. Leakage Current Hot Check

1. Plug the AC cord directly into the AC outlet. Do not use an isolation transformer for this check.

2. Connect a 1.5k:, 10 watts resistor, in parallel with a 0.15PF capacitors, between each exposed metallic part on the set and a
good earth ground such as a water pipe, as shown in Figure 1-1.

3. Use an AC voltmeter, with 1000 ohms/volt or more sensitivity, to measure the potential across the resistor.

4. Check each exposed metallic part, and measure the voltage at each point.

5. Reverse the AC plug in the AC outlet and repeat each of the above measurements.

6. The potential at any point should not exceed 0.75 volts RMS. A leakage current tester (Simpson Model 229 or equivalent)
may be used to make the hot checks, leakage current must not exceed 1/2 milliamp. In case a measurement is outside of the
limits specified, there is a possibility of a shock hazard, and the equipment should be repaired and rechecked before it is
returned to the customer.

Figure 1-1

1.3. Before Repair and Adjustment

Caution:

DO NOT SHORT-CIRCUIT DIRECTLY (with a screwdriver blade, for instance), as this may destroy solid state devices.
After repairs are completed, restore power gradually using a variac, to avoid overcurrent.
Current consumption at AC 127 V, 60 Hz in FM Tuner at volume minimum mode should be ~ 500 mA.

1.4. Protection Circuitry

The protection circuitry may have operated if either of the following conditions are noticed:

 No sound is heard when the power is turned on.
 Sound stops during a performance.

The function of this circuitry is to prevent circuitry damage if, for example, the positive and negative speaker connection wires are
“shorted”, or if speaker systems with an impedance less than the indicated rated impedance of the amplifier are used.
If this occurs, follow the procedure outlines below:

1. Turn off the power.

2. Determine the cause of the problem and correct it.

3. Turn on the power once again after one minute.

Note:

When the protection circuitry functions, the unit will not operate unless the power is first turned off and then on again.

1.5. Power Supply using SMPS

This model uses SMPS Module to Power up the unit. Below is the part number of the SMPS Model.
N0AB3GL0 0001

Figure 1-3

1.6. Safety Parts Information

Safety Parts List:

There are special components used in this equipment which are important for safety.

These parts are marked by in the Schematic Diagrams, Exploded View & Replacement Parts List. It is essential that these

critical parts should be replaced with manufacturer’s specified parts to prevent shock, fire or other hazards. Do not modify the

original design without permission of manufacturer.

Modelo:

SC-AKX36LM-

K

Safety

K2CB2CB00022

RXTM0004B

RKMX1011Z-KL1

RQTM0197

N0AB3GL00001

GAB.MET.SIN DOBLAR

LECTOR ÓPTICO ( CD UNIT )

Numero de Parte

SWITCHING POWER

SUPPLIES(AC-DC CONVERTER )

REAR PANEL

CABLE TOMACORRIENTE.

INSTRUCTIVO

Nombre del componente

GABINETE METÁLICO DOBLADO

RD-DDL106-PX

RXRM0004

2 Warning

2.1. Prevention of Electrostatic Discharge (ESD) to Electrostatically Sensi­tive (ES) Devices

Some semiconductor (solid state) devices can be damaged easily by static electricity. Such components commonly are called Elec­trostatically Sensitive (ES) Devices.

The following techniques should be used to help reduce the incidence of component damage caused by electrostatic discharge
(ESD).

1. Immediately before handling any semiconductor component or semiconductor-equipped assembly, drain off any ESD on your
body by touching a known earth ground. Alternatively, obtain and wear a commercially available discharging ESD wrist strap,
which should be removed for potential shock reasons prior to applying power to the unit under test.

2. After removing an electrical assembly equipped with ES devices, place the assembly on a conductive surface such as alumi­num foil, to prevent electrostatic charge buildup or exposure of the assembly.

3. Use only a grounded-tip soldering iron to solder or unsolder ES devices.

4. Use only an anti-static solder removal device. Some solder removal devices not classified as “anti-static (ESD protected)” can
generate electrical charge sufficient to damage ES devices.

5. Do not use freon-propelled chemicals. These can generate electrical charges sufficient to damage ES devices.

6. Do not remove a replacement ES device from its protective package until immediately before you are ready to install it. (Most
replacement ES devices are packaged with leads electrically shorted together by conductive foam, aluminum foil or compara­ble conductive material).

7. Immediately before removing the protective material from the leads of a replacement ES device, touch the protective material
to the chassis or circuit assembly into which the device will be installed.

CAUTION:

Be sure no power is applied to the chassis or circuit, and observe all other safety precautions.

8. Minimize bodily motions when handling unpackaged replacement ES devices. (Otherwise harmless motion such as the
brushing together of your clothes fabric or the lifting of your foot from a carpeted floor can generate static electricity (ESD) suf­ficient to damage an ES device).

2.2. Precaution of Laser Diode

Caution:

This product utilizes a laser diode with the unit turned “on”, invisible laser radiation is emitted from the pickup lens.
Wavelength: 790 nm (CD)
Maximum output radiation power from pickup: 100 µW/VDE
Laser radiation from the pickup unit is safety level, but be sure the followings:

1. Do not disassemble the pickup unit, since radiation from exposed laser diode is dangerous.

2. Do not adjust the variable resistor on the pickup unit. It was already adjusted.

3. Do not look at the focus lens using optical instruments.

4. Recommend not to look at pickup lens for

a long time.

Figure 2-1

2.3. Service caution based on Legal restrictions

2.3.1. General description about Lead Free Solder (PbF)

The lead free solder has been used in the mounting process of all electrical components on the printed circuit boards used for this
equipment in considering the globally environmental conservation.

The normal solder is the alloy of tin (Sn) and lead (Pb). On the other hand, the lead free solder is the alloy mainly consists of tin
(Sn), silver (Ag) and Copper (Cu), and the melting point of the lead free solder is higher approx.30 degrees C (86qF) more than that
of the normal solder.

Definition of PCB Lead Free Solder being used

Service caution for repair work using Lead Free Solder (PbF)

• The lead free solder has to be used when repairing the equipment for which the lead free solder is used.
(Definition: The letter of “PbF” is printed on the PCB using the lead free solder.)

• To put lead free solder, it should be well molten and mixed with the original lead free solder.

• Remove the remaining lead free solder on the PCB cleanly for soldering of the new IC.

• Since the melting point of the lead free solder is higher than that of the normal lead solder, it takes the longer time to melt the
lead free solder.

• Use the soldering iron (more than 70W) equipped with the temperature control after setting the temperature at 350±30 degrees
C (662±86qF).

Recommended Lead Free Solder (Service Parts Route.)

• The following 3 types of lead free solder are available through the service parts route.
RFKZ03D01K-----------(0.3mm 100g Reel)
RFKZ06D01K-----------(0.6mm 100g Reel)
RFKZ10D01K-----------(1.0mm 100g Reel)

Note

* Ingredient: tin (Sn), 96.5%, silver (Ag) 3.0%, Copper (Cu) 0.5%, Cobalt (Co) / Germanium (Ge) 0.1 to 0.3%

The letter of “PbF” is printed either foil side or components side on the PCB using the lead free solder.

(See right figure)

2.4. Handling Precautions for Traverse Unit

The laser diode in the optical pickup unit may break down due to static electricity of clothes or human body. Special care must be
taken avoid caution to electrostatic breakdown when servicing and handling the laser diode in the traverse unit.

2.4.1. Cautions to Be Taken in Handling the Optical Pickup Unit

The laser diode in the optical pickup unit may be damaged due to electrostatic discharge generating from clothes or human body.
Special care must be taken avoid caution to electrostatic discharge damage when servicing the laser diode.

1. Do not give a considerable shock to the optical pickup unit as it has an extremely high-precise structure.

2. To prevent the laser diode from the electrostatic discharge damage, the flexible cable of the optical pickup unit removed
should be short-circuited with a short pin or a clip.

3. The flexible cable may be cut off if an excessive force is applied to it. Use caution when handling the flexible cable.

4. The antistatic FPC is connected to the new optical pickup unit. After replacing the optical pickup unit and connecting the flexi­ble cable, cut off the antistatic FPC.

Figure 2-2

2.5. Grounding for electrostatic breakdown prevention

• As for parts that use optical pick-up (laser diode), the optical pick-up is destroyed by the static electricity of the working environ­ment.
Repair in the working environment that is grounded.

2.5.1. Worktable grounding

• Put a conductive material (sheet) or iron sheet on the area where the optical pickup is placed and ground the sheet.

2.5.2. Human body grounding

• Use the anti-static wrist strap to discharge the static electricity form your body Figure 2-3

Figure 2-3

3 Service Navigation

3.1. Service Information

This service manual contains technical information which will allow service personnel’s to understand and service this model.
Please place orders using the parts list and not the drawing reference numbers.

If the circuit is changed or modified, this information will be followed by supplement service manual to be filed with original service
manual.

• CD Mechanism Unit:

1) This model uses CD Mechanism Unit.

• Micro-processor:

1) The following components are supplied as an assembled part.

- Micro-processor IC, IC2006 (MN101EF16ZXW) * Este material se encuentra sin programar, necesita ser programado.

- Micro-processor IC, IC2006 (RFKWMAKX36LM) grabado del modelo base SA-AKX36PN.

3.2. Firmware Update Procedure

Start

Write encrypted UPD bin to CD-R

Turn On main set

Insert CD-R (with UPD bin) and

close

TOC reading

Writing starts:

"0%" -> "20%" -> "40%" ->

"60%" -> "80%" -> 100%"

"CHECKING"

"GOOD" display 3 sec

Set auto turn Off -> Cold Start

End

OK

NG

"NO PLAY"

process end

4 Specifications

Sección del amplificador

Potencia de salida RMS en modo estéreo

Potencia de salida PMPO

Canal frontal (ambos canales controlados)

275 W por canal (3



), 1 kHz, 30% THD

Potencia total del modo estéreo RMS

550 W (30% THD)

6000 W

Sección del sintonizador, terminales

Memoria preconfigurada

30 emisoras de FM
15 emisoras de AM

Frecuencia modulada (FM)

Gama de frecuencias

87,5 MHz a 108,0 MHz (en pasos de 100 kHz)
87,9 MHz a 107,9 MHz (en pasos de 200 kHz)

Terminales de la antena 75



(desbalanceado)

Amplitud modulada (AM)

Gama de frecuencias

520kHza1710kHz(enpasosde10kHz)

Puerto de música (frontal)

Sensibilidad 100 mV, 4,7 k



Terminal Estéreo, toma de 3,5 mm

Entrada AUX

Clavija jack RCA

Sección de discos compactos

Discos reproducidos (8 cm o 12 cm)

CD, CD-R/RW (CD-DA, MP3 )

Lector

Longitud de onda 790 nm (CD)

Salida de audio (disco)

Número de canales 2 canales (FL, FR)
FL = Canal frontal izquierdo
FR = Canal frontal derecho

MPEG-1 Layer 3

Sección de memoria interna

Memoria

Tamaño de la memoria 2 GB
Compatibilidad con formato de archivos de medios

MP3 (

*

.mp3)

Grabación en memoria interna

Velocidad de bits 128 kbps
Velocidad de grabación en la memoria

1x, 3x máx. (CD solamente)

Formato de archivo de grabación MP3 (

*

.mp3)
Capacidad de total de canciones grabadas
(usa 128 kbps, aproximadamente 1 canción = 4 minutos)

510 canciones

Sección de USB

Puerto USB

USB estándar USB 2,0 velocidad total
Compatibilidad con formato de archivos de medios

MP3 (

*

.mp3)

Sistema de archivo de dispositivo USB

FAT12, FAT16, FAT32
Energía puerto USB 500 mA (máx.)
Velocidad de bits 16 kbps a 320 kbps (reproducción)

Grabación en USB

Velocidad de bits 128 kbps
Velocidad de grabación USB

1x, 3x máx. (CD solamente)

Formato de archivo de grabación MP3 (

*

.mp3)

Sección de bafles

Tipo

Sistema de 2 bocinas de 2 vías

(reflejo de sonidos graves)

Bocina(s)

Bocina para graves Tipo cónico de 20 cm
Bocina para agudos Tipo cónico de 6 cm

Impedancia

3



Presión acústica de salida

87 dB/W (1 m)

Gama de frecuencias

50 Hz a 21 kHz (–16 dB)

75 Hz a 20 kHz (–10 dB)

Dimensiones(AnxAlxPrf)

250mmx429mmx226mm

Peso

4k

g

Generalidades

Fuente de alimentación

~

127 V, 60 Hz

Consumo de energía

73 W

Dimensiones(AnxAlxPrf)

220mmx334mmx250mm

Peso

3k

g

Gama de temperaturas de funcionamiento

0°C a +40°C

Gama de humedades de funcionamiento

35% a 80% humedad relativa (sin condensación)

Nota:

 Las especificaciones están sujetas a cambios sin previo

aviso.
La masa y las dimensiones son aproximados.

 La distorsión armónica total se mide con el analizador de

espectro d

igital.

Consumo en el modo normal

Consumo en el modo de espera

73Wh/día (considerando 1 hora de uso al día).

11,5Wh/día (considerando 23 horas en modo de espera
al día).

5 General/Introduction

5.1. Media Information

6 Location of Controls and Components

6.1. Remote Control Key Button Operation

Interruptor de alimentación en espera/conectada

Pulse este interruptor para cambiar del modo de alimentación conectada al modo de
alimentación en espera o viceversa. En el modo de alimentación en espera, la unidad
consume una pequeña cantidad de corriente.

Botones alfanuméricos
Para seleccionar un número de dos dígitos
Ejemplo: 16: [ 10]

t

[1]

t

[6]
Para establecer un carácter
Ejemplo: B: [2]

t

[2]

Borre una pista programada
Borre una p

ista seleccionada en una lista de reproducción

Seleccionar la fuente de audio

Control de reproducción básica

Seleccionar los efectos de sonido

Iniciar la búsqueda del título para memoria interna

Vea la información del contenido

Disminuir el brillo del panel de visualización

Mantenga pulsado el botón para usar esta función.
Para cancelar, pulse el botón nuevamente.

Control de operación de grabación

Configurar el temporizador de reproducción y de

grabación

Configurar el reloj y el temporizador

Configurar el temporizador de apagado automático

Apagar automáticamente el sistema

La función de apagado automático apagará el sistema (excepto cuando está en fuente
de radio) si no utiliza el sistema durante 30 minutos.
Mantenga pulsado el botón para usar esta función.
Para cancelar, pulse el botón nuevamente.

Configurar la función programa
Ajustar el volumen del sistema

Desactivar el sonido del sistema

Pulse el botón nuevamente para cancelar.
“MUTE” también se cancela cuando usted ajusta el volumen o cuando apaga el sistema.

Configurar el ítem del menú de reproducción
Funcionamiento de la lista de reproducción de la memoria interna

RADIO/

EXT-IN

SOUND

PRESET EQ

EDIT

MODE

DISPLAY

DIMMER

USB

HI-SPEED

CD

REC

MEMORY

MODE

SLEEP

PLAY/

REC

AUTO OFF

MEMORY

T

I

T

L

E

S

E

A

R

C

H

P

L

A

Y

L

I

S

T

ABC

DEF

GHI

P

QRS

TUV

W
XYZ

JKL

MNO

1

2

3

4

4

5

6

7

8

9

10

11
12

13

14

15

16

17

18

19

[

[/I

],]

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

6.2. Main Unit Key Button Operation

Seleccionar la opción

Configurar el modo de edición para USB y memoria interna

Botones directos de la lista de reproducción de la memoria interna

Pulse para agregar una pista a la lista de reproducción correspondiente.
Pulse para seleccionar la lista de reproducción.

Sensor del control remoto
Distancia: A aproximadamente 7 m
Ángulo: aproximadamente 20° hacia arriba y hacia abajo, 30° a la izquierda y derecha

Puerto USB ( )
Indica

dor de grabación USB

Panel de visualización

Explore la lista de reproducción de la memoria interna

Buscar pistas o álbumes

Gire [CONTROL] para buscar las pistas.
Pulse [ ] para iniciar la reproducción de la selección.

Pulse [ALBUM/TRACK] para seleccionar el álbum o pista y después gire [CONTROL]
para buscar.
Pulse [ ] para iniciar la reproducción de la selección.

Configurar el efecto de la iluminación

Mantenga pulsado [–ILLUMINATION] y después gire [CONTROL] para
seleccionar la configuración deseada.

Abrir o cerrar la bandeja del disco

Toma puerto de música

Bandeja de disco

MUSIC PORT

OPEN

/

CLOSE

RADIO/
EXT-IN

CD

USB

MEMORY/

TUNEMODE

ALBUM/TRACK

-ILLUMINATION

CONTROL

–

VOLUME

+

USB REC

D.BASS

MANUAL EQ

PRESETEQ

LATIN

MEMORY REC

M

E

M

O

R

Y

P

L

A

Y

L

I

S

T

6

5

4

3

2

1

18

19

20

21

22

23

24

25

26

27

X/II

X/II

20

21

1

6

9

5

9

22

20

23

24

5

4

25

26

14

27

1

Conecte la antena de cuadro AM.

Ponga la antena en posición vertical sobre su base
hasta que haga clic.

2

Conecte la antena interior FM.

Coloque la antena donde la recepción sea la mejor.

3

Conecte los bafles.

Conecte los cables de los bafles a las terminales del
mismo color.

4

Conecte el cable de alimentación de

~

No use un cable de alimentación de~de otro equipo.

Cómo ahorrar energía

El sistema consume una pequeña cantidad de
corriente alterna, incluso cuando está en modo de
espera. Desconecte la fuente de alimentación cuando
no use el sistema.
Se perderán algunas configuraciones cuando
desconecte el sistema. Tendrá que configurarlas
nuevamente.

213

4

B

A

Cinta adhesiva

B

A

Negro

Rojo

Del enchufe de
conexión a la
red de

~

Cómo realizar las conexiones

Conecte el cable de alimentación de~sólo después
de haber hecho todas las demás conexiones.

Corriente alterna =

Para México:
ca ó Vca
Símbolo universal:

∼

En este instructivo
nos referiremos a
la corriente

alterna como

∼

Tenga cuidado de no
juntar ni invertir la
polaridad de los cables de los
bafles, ya que pueden
dañarse.

7 Installation Instructions

7.1. Speaker and A/C Connection

8 Service Mode

8.1. Cold-Start

Here is the procedure to carry out cold-start or initialize to shipping mode.

1. Unplug AC power cord

2. Press & hold [POWER] button

3. Plug AC power cord while [POWER] button being pressed
FL Display will show “_ _ _ _ _ _ _ _”

4. Release [POWER] button

8.2. Doctor Mode Table

8.2.1. Doctor Mode Table 1

FL Display

Key Operation

Front Key

Item

DescriptionMode Name

Doctor Mode

EEPROM
checksum
check

To enter into Doctor Mode In CD Mode:

1. Press [ ] button on
main unit follow by [4]
and [7] on remote control.

In CD mode:

1. Enter into Doctor Mode

2. To exit, press [DELETE]
button on remote control or,
press [POWER, /I] button on
Main Unit

Displaying of

1. Year Develop.

2. Model Type.

3. ROM Type.

4. Firmware Version.

(Display 1)

Version No. (001 ~ 999) specific for each
firmware

(Decimal)1 2 3 4

(Display 2)

Checksum (Hex)

8.2.2. Doctor Mode Table 2

FL Display

Key Operation

Front Key

Item

DescriptionMode Name

Volume Setting
Check

FL Display Check

To check the volume setting of the
main unit.

To check the FL segment display.
All segments will light up while all LED
blink at 0.5s intervals.

In Doctor Mode:

1. Press [7], [8], [9] button on
the remote control.

In Doctor mode:

1. Press [1] button on the
remote control.

2. To cancel this mode, press
[0] button on the remote control.

Press [7]: VOL50
Press [8]: VOL35
Press [9]: VOL0

Volume

In this mode, the tray will open & close
automatically.

Cancellation Display

Loading Test To determine the open & close

operation of the CD Mechanism Unit.

Note: Refer to Section 8.3 Figure 8-2
for process flow

Note: Refer to Section 8.3 Figure 8-3
for process flow

Note: Refer to Section 8.3 Figure 8-1
for process flow

.

The counter will
increment by one.
When reach 99999999
will change to 00000000

Cancellation Display

Traverse Test To determine the traverse unit

operation for inner & outer access track.

The counter will
increment by one.
When reach 99999999
will change to 00000000

The counter will
increment by one.
When reach 99999999
will change to 00000000

Cancellation Display

Reliability Test
(Combination)

In this mode,ensure the CD is in the
main unit.

To determine the traverse unit
operation & open/close operation of the
mechanism.

In this mode,ensure the CD is in the
main unit.

In Doctor Mode:

1. Press [10] [2] [1] button
on the remote control.

In Doctor Mode:

2. To cancel this mode, press
[0] button on the remote control.

1. Press [10] [1] [2] button
on the remote control.

In Doctor Mode:

1. Press [10] [1] [5] button
on the remote control.

2. To cancel this mode, press
[0] button on the remote control.

2. To cancel this mode, press
[0] button on the remote control.

8.2.3. Doctor Mode Table 3

FL Display

Key Operation

Front Key

Item

DescriptionMode Name

CD

Self- Adjustment

Test

To display result of
self-adjustment for CD.

CD LSI Version
Check

For checking CD LSI Version and
checksum information.

In Doctor Mode

:

1. Press [10] [1] [4] button
on the remote control.

In Doctor Mode:

1. Press [4] button on the
remote control.

Display of auto adjustment
result

Reference table:

ERROR Code
Status
Condition

0 1 2 4 6 8 A C E F

AOC1/AOC2 O O O O O O O O -

ABC2/ABC1 O - X O X O X O X -

2

nd

AOC1 O - O X X O O X X -

FAGC/TAGC O - O O O X X X X -

AGC2 O - O O O O O O O

O : OK;
X : NG (In case that time out happens.)
: Either one of FO AOC, TR AOC and FO
coarse AGC is NG.
: If the AGC is NG (ignore others).

To cancel this mode, press [0]
button on the remote control.

To cancel this mode, press [0]
button on the remote control.

(Display 1)

(Display 2)

Version (Decimal)

ROM
Type

Year Develop

after
2 sec

Checksum (Hex)

8.3. Reliability Test Mode (CD Mechanism Unit)

Below is the process flow chart of the aging test for the CD Mechanism Unit .

Fig. 1. Reliability Test (Loading)

Fig. 2. Reliability Test (Traverse)

Fig. 3. Reliability Test (Combination)

OPEN
Operation

OPEN wait
for 1 s

CLOSE
Operation

CLOSE wait
for 4 s

Count up

First Track

Access

First Track

Play 5 s

Last Track

Access

Last Track

Play 5 s

Count up

First Track

Access

Access

Play 10 s

Open

Operation

Open wait

for 1 s

CLOSE

Operation

Count up

First Track

Last Track

Last Track

Play 10 s

8.4. Self-Diagnostic Mode

8.5. Self-Diagnostic Error Code Table

Self-Diagnostic Function (Refer Section 8.4. Self-Diagnostic Mode) provides information on any problems occurring for the unit and
its respective components by displaying the error codes. These error code such as U**, H** and F** are stored in memory and held
unless it is cleared.
The error code is automatically display after entering into self-diagnostic mode.

8.5.1. Power Supply Error Code Table

FL Display

Key Operation

Front Key

Item

Description

Mode Name

To enter into self diagnostic checking

System will perform a check on any
unusual/error code from the memory

To clear the stored in memory
(EEPROM IC)

Self Diagnostic
Mode

Error code
information

Delete error
code

Step 1: Select CD mode
(Ensure no disc is inserted).

Step 2: Press & hold [ ] button
follow by [ ] on
main unit for 2 seconds.

Step 1: In self diagnostic mode,
Press [ ] on main unit.

To exit, press [^/I] on main
unit or remote control.

Step 1: In self diagnostic mode,
Press [0] on remote control.

To exit, press [^/I] on main
unit or remote control.

Example:

/

Cold Start To active cold start upon next AC

power up when reset start is
execute the next time.

In self diagnostic mode:

1. Press [3] button on
the remote control.

8.5.2. CD Mechanism Error Code Table (CD Mechanism Unit)

8.6. Sales Demonstration Lock Function

8.6.1. Entering into Sales demonstration lock mode

Here is the procedures to enter into the Sales demonstration lock mode.
Step 1: Turn on the unit.
Step 2: Select to any mode function.

Step 3: Press and hold [

OPEN/CLOSE] and [CD] keys for 5 sec or more.

The display will show upon entering into this mode for 2 sec..

Note: [

OPEN/CLOSE] button is invalid and the main unit displays “LOCKED” while the lock function mode is entered.

8.6.2. Cancellation of Sales demonstration lock mode

Step 1: Turn on the unit.
Step 2: Select to any mode function.
Step 3: Set volume to Vol 19.

Step 4: Press and hold [

OPEN/CLOSE] and [CD] keys for 5 sec or more.

The display will show upon entering into this mode for 2 sec..

Error Code Diagnostic Contents Description of error Automatic FL Display Remarks

CD H15 CD Open Abnormal During operation

POS_SW_R On fail to be
detected with 4 sec. Error
No. shall be clear by force
or during cold start.

Press [

] on main unit for

next error.

CD H16 CD Closing Abnormal During operation

POS_SW_CEN On fail to
be detected with 4 sec.
Error No. shall be clear by
force or during cold start.

Press [

] on main unit for

next error.

F26 Communication between

CD servo LSI and micro-p
abnormal.

During switch to CD func­tion, if SENSE = “L” within
failsafe time of 20ms.

Press [

] on main unit for

next error.

9 Troubleshooting Guide

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