Sharp MD-MS702MK User manual

Brand: Sharp

Model: MD-MS702MK

Category: Minidisc players

Type: User manual

MD-MS702MK

– 1 –

MD-R2

This Serivce Manual is for the MD-MS702MK, which is a

minormodification model of the MD-MS702, This manual,

therefore, describes only the changed points from the

service manual. Pleasa refer to the MD-MS702, service

manual (No. S1806MDMS701W) together with this manual.

MD-MS702

Page

ADJUSTMENT ......................................................................... 12

WAVEFORMS OF MD CIRCUIT ............................................. 43

TROUBLESHOOTING ............................................................. 44

FUNCTION TABLE OF IC ....................................................... 47

Page

SPECIFICATIONS ................................................................................................................................................................. 2

BATTERY DISPOSAL(USA ONLY) ........................................................................................................................................ 2

NAMES OF PARTS ............................................................................................................................................................... 3

OPERATION MANUAL .......................................................................................................................................................... 4

QUICK GUIDE ........................................................................................................................................................................ 6

DISASSEMBLY...................................................................................................................................................................... 8

REMOVING AND REINSTALLING THE MAIN PARTS......................................................................................................... 9

EEPROM DATA LIST ........................................................................................................................................................... 10

DIGITAL EQ SETTING ......................................................................................................................................................... 11

BLOCK DIAGRAM ................................................................................................................................................................ 13

NOTES ON SCHEMATIC DIAGRAM ................................................................................................................................... 15

SCHEMATIC DIAGRAM ...................................................................................................................................................... 14

VOLTAGE ............................................................................................................................................................................. 17

WIRING SIDE OF P.W.BOARD............................................................................................................................................ 18

NOTES ON SCHEMATIC DIAGRAM ................................................................................................................................... 23

PARTS GUIDE/EXPLODED VIEW

PACKING METHOD (FOR USA ONLY)

• In the interests of user-safety the set should be restored to its original

condition and only parts identical to those specified should be used.

MD-MS702MK

SERVICE MANUAL

SHARP CORPORATION

No. S7860MDMS702M

This document has been published to be used

for after sales service only.

The contents are subject to change without notice.

CONTENTS

MD-MS702MK

– 2 –

FOR A COMPLETE DESCRIPTION OF THE OPERATION OF THIS UNIT, PLEASE REFER TO

THE OPERATION MANUAL.

General

Power source: DC 3.6 V (rechargeable lithium-ion

battery x 1)

DC 5 V (AC adaptor)

AC 120V, 60 Hz

DC 3V: Optionally available battery

case, AD-M70BC

(commercially available, "AA"

size, alkaline battery x 2)

DC 4.5V: Optionally available car adaptor,

AD-CA20X

(for cars with a 12-24V DC

negative earth electrical system)

Power consumption: 7 W (AC adaptor)

Output power: RMS; 20 mW (10 mW + 10mW)

(0.2% T.H.D.)

Charging time: Approx. 3.0 hours

(When using the AC adaptor included with

the unit)

Battery life:

The continuous recording time is for analog inputs when the

volume level is set to "VOL 0".

The continuous play time shows the value when the volume level

is set to "VOL 15".

The above values are the standard values when the unit is

charged and used at an ambient temperature of 68 oF(20oC).

The operating time when using alkaline batteries may be different,

depending on the type and manufacturer of the batteries, and on

the operating temperature.

Input sensitivity:

Output level:

Dimensions: Width: 3-7/16" (87.0 mm)

Height: 1-3/16" (29.4 mm)

Depth: 3-7/32" (81.5 mm)

Weight: 0.50 lbs.(227 g) with rechargeable battery

Input jack: Line/optical digital, microphone

(powered by the main unit)

Output jack: Headphones (impedance: 19 ohms)/

remote control unit

MiniDisc Recorder

Type: Portable MiniDisc recorder

Signal readout: Non-contact, 3-beam semi-conductor

laser pick-up

Audio channels: Stereo 2 channels/monaural (long-play

mode) 1 channel

Frequency response: 20 - 20,000 Hz (± 3 dB)

Rotation speed: Approx. 400 - 900 rpm

Error correction: ACIRC (Advanced Cross Interleave Reed-

Solomon Code)

Coding: ATRAC (Adaptive TRansformed

Acoustic Coding), 24-bit computed type

Recording method: Magnetic modulation overwrite method

Sampling frequency: 44.1 kHz (32 kHz and 48 kHz signals are

converted to 44.1 kHz, and then recorded.)

Wow and flutter: Unmeasurable

(less than ±0.001% W.peak)

SPECIFICATIONS

Specifications for this model are subject to change without

prior notice

Recording

Reference input

Input

level

impedance

MIC H 0.25 mV 10 k ohms

MIC L 2.5 mV 10 k ohms

LINE 100 mV 20 k ohms

Headphones — 10 mW + 32 ohms

10 mW

LINE 300mV — 50 kohms

(-12dB)

Maximum

output level

Specified

output Load

impedance

When using the

rechargeable battery (fully

charged) included with the

unit

When using two,

commerically available,

high capacity, "AA" size,

alkaline batteries (in the

optionally available

battery case)

When using two, commercially

available, high capacity, "AA"

size batteries with the

rechargeable battery (fully

charged)

Continuous recording:

Approx. 4.5 hours Continuous recording:

Approx. 4 hours Continuous recording:

Approx. 8.5 hours

Continuous play:

Approx. 6.5 hours Continuous play:

Approx. 8 hours Continuous play:

Approx. 14.5 hours

BATTERY DISPOSAL (USA ONLY)

Contains nickel cadmium (or sealed lead) battery.Must be

recycled or disposed of properly.Remove the battery from the

product and contact federal or state environmental agencies

for information on recycling and disposal options.

MD-MS702MK

– 3 –

Remote Control Unit

1. Synchro Recording Indicator

2. Character/Time Information Indicator

3. Record Indicator

4. Repeat Indicator:

5. Random Indicator

6. Disc Mode Indicator

7. Total Track Number Display

8. Track Number Indicator

9. Battery Indicator:

10. Headpones Socket

11. Hold Switch

12. Play Mode Button

13. Volume Buttons: +, -

14. Bass Button

15. Display Button

16. Play/Pause Button:

17. Stop/Power Off Button:

18. Fast Reverse/Fast Forward Buttons: /

Main Unit

1. Monaural Long-Play Mode Indicator

2. Record Indicator

3. Level Meter

4. Repeat Indicator:

5. TOC Indicator

6. Battery Indicator:

7. Random Indicator

8. Track Number Indicator

9. Character/Time Information Indicator

10. Synchro Recording Indicator

11. Disc Mode Indicator

12. Disc Name Indicator

13. Track Name Indicator

14. Remaining Recording Time Indicator

15. Total Track Number Display

16. Record/Track Mark Button

17. Volume/Name Select Buttons: +, -

18. Display/Lowercase Characters Button

19. Character Button

20. Stop/Power Off/Charge Button: /:OFF

21. Play/Pause Button:

22. Fast Reverse/Fast Forward/Recording Level Control/Cursor

Buttons: /

23. Enter/Fast Play/Synchro Button

24. Editer/Auto Mark/Time Mark Button

25. Eject Lever

26. Bass/Delete Button

27. Mode/Insert Button

28. Microphone Input Socket

29. Hold Switch

30. Rechargeable Lithium-Ion Battery Compartment

31. Optical/Line Input Soket

32. Headphones Soket

33. 5V DC Input Sokets

34. Battert Case Connection Terminals

NAMES OF PARTS

12345

14 15

16 17 18 19 20 21

22 23 24 25 26 27

RANDOM

TOTAL

REC

SYNC

11 15

789

MD-MS702MK

– 4 –

OPERATION MANUAL

■Rechargeable battery power

When the rechargeable battery is used for

the first time or when you want to use it

after a long period of non use, be sure to

charge it fully.

1Open the rechargeable battery com-

partment cover.

2Insert the rechargeable battery.

●Insert the side with the arrow first.

3Close the rechargeable battery com-

partment cover.

4Plug the AC adaptor into the AC outlet,

and then insert the plug on the AC

adaptor cord into the DC IN 5V jack.

5Press the ■/:OFF button twice to begin

charging.

●“ ” will appear, and the battery will

begin charging.

●Battery charging will be complete in 3.0

hours. When the charging is com-

plete, “ ” will go out.

AC 120V, 60 Hz

To an AC outlet

POWER SOURCE

Notes:

●After charging is complete, the AC

adaptor may be left connected. (For ex-

ample, when charging at night)

●The battery will not be charged when-

ever the power to the main unit is

turned on.

●If the AC adaptor is removed from the

main unit or from the AC outlet while

charging, “ ” will not disappear for

about 1 minute. This is normal.

●Do not force open the rechargeable

battery door too far.

●Do not attach the optionally available

battery case when charging the internal

battery.

This unit can be used with 4 different power sources: a rechargeable battery, an AC

adaptor, an optionally available battery case (AD-M70BC), and an optionally available

car adaptor (AD-CA20X).

:OFF

DC IN

Mark

To the

DC IN 5V

jack

Insert

securely,

all the

way in.

■ Checking the remaining

amount of battery charge

The remaining amount of battery charge is

shown by the battery indicator ( ) dur-

ing operation.

< How to read the battery indicator >

●When the battery is completely dis-

charged, the whole battery indicator will

flash. Recharge the battery or replace

the alkaline batteries with new ones.

●When the battery has completely run

out, “BATT EMPTY” (main unit) and “Lo

BATT” (remote control unit) will appear.

The power will be disconnected auto-

matically.

Notes:

●When the AC adaptor included with this

unit or an optionally available car adap-

tor is used, the battery indicator will not

be shown.

●The number of bars shown in the bat-

tery indicator may increase or de-

crease, depending on the operation

being performed. This is normal.

●When the rechargeable battery and the

alkaline batteries are used at the same

time, the rechargeable battery is used

first, and then the alkaline batteries.

Since the battery indicator shows the

remaining amount of the particular bat-

tery being used, the number of bars will

increase when the unit switches to the

alkaline batteries.

CONVENIENT OPERATION FEATURES

Battery indicator

Charging is

needed.

When the battery is

completely charged

When the battery needs charging, it is

impossible to start recording or editing.

RECORDING USING AN OPTIONALLY AVAILABLE DIGITAL

CABLE

There are cases where digital

recording may be impossible.

In the following cases digital recording is

impossible, even if you are using digital

cables.

When you attempt to make a new digital

recording from a track that was digitally

recorded on a MiniDisc

●MiniDiscs are designed so that only

first generation digital copies can

made, further digital copies are pre-

vented by the SCMS (Serial Copy Man-

agement System). Recording

Playback

CD player, MD

player, etc.

Digitally recorded MiniDisc

Digital cable

Recording

Playback Digital cable

Analog recording is

possible.

MD-MS702MK

– 5 –

Moisture condensation

In the following cases, condensation

may form inside the unit.

Shortly after turning on a heater.

When the unit is placed in a room

where there is excessive steam or

moisture.

When the unit is moved from a cool

place to a warm place.

When the unit has condensation inside,

the disc signals cannot be read, and the

unit may not function properly.

If this happens, remove the disc.

The condensation should evaporate in

approximately 1 hour. The unit will then

function properly.

TROUBLESHOOTING

If trouble occurs

When this product is subjected to strong

external interference (mechanical shock,

excessive static electricity, abnormal sup-

ply voltage due to lightning, etc.) or if it is

operated incorrectly, it may malfunction. If

such a problem occurs, do the following:

1. Unplug the AC adaptor from the AC

outlet.

2. Remove the battery.

3. Leave the unit completely unpowered

for approximately 30 seconds.

4. Plug the AC adaptor back into the AC

outlet and retry the operation.

If strange sounds, smell or smoke come

out of the unit or an object is dropped into

the unit, remove the AC adaptor from the

AC outlet immediately and contact an au-

thorized Sharp service center.

Many potential “problems” can be resolved by the owner without calling a service tech-

nician. If something seems to be wrong with this product, check the following before

calling your authorized SHARP dealer or service center.

PROBLEM CAUSE

The unit does not turn

on.

Is the AC adaptor disconnected?

Is the battery exhausted?

Is the unit in the safety mode?

Has condensation formed inside the unit?

Is the unit being influenced by mechanical shock or by

static electricity?

No sound is heard

from the headphones.

Is the volume set too low?

Is the remote control unit or the headphones plugged

in?

Are you trying to play a MiniDisc with data on it

instead of a MiniDisc containing music?

When the operation

buttons are pressed,

the unit does not

respond.

Is the unit in the safety mode?

Is the battery exhausted?

Is the remote control unit plug or the headphone plug

inserted firmly?

Some sounds are

skipped. Is the battery exhausted?

Is the unit being subjected to excessive vibration?

The MiniDisc cannot

be ejected.

Has the track number or character information been

written on the disc yet?

Is the unit in the recording or editing mode?

Recording and editing

are impossible.

Is the MiniDisc protected against accidental erasure?

Is the unit connected properly to the other equipment?

Is the AC adaptor unplugged or did a power failure

occur while recording or editing?

Is the unit in the safety mode?

Even if the maximum recording

time of a MiniDisc has not been

reached, “DISC FULL” or “TOC

FULL” may be displayed.

When the number of tracks used

reaches the limit, regardless of the

remaining recording time, further

recording will be impossible.

(Maximum number of tracks: 254)

If a MiniDisc has been recorded or

edited repeatedly or if a MiniDisc has

scratches on it, it may not be possible

to record the maximum number of

tracks on it.

Even if the number of tracks and

the recording time have not

reached the limit, “DISC FULL” may

be displayed.

If there are scratches on a disc, the

unit will automatically avoid recording

in those areas. The recording time will

be reduced.

Even if several short tracks are

erased, the remaining recording

time may not show an increase.

When the remaining recording time of

a disc is displayed, short tracks less

than 8 seconds long may not be

included in the total.

Two tracks may not be combined in

editing. For MiniDiscs on which repeated

recording and editing operations were

performed, the COMBINE function

may not work.

The total of the recorded time and

time remaining on a disc may not

add up to the maximum possible

recording time.

A cluster (about 2 seconds) is

normally the minimum unit of

recording. So, even if a track is less

than 2 seconds long, it will use about

2 seconds of space on the disc.

Therefore, the time actually available

for recording may be less than the

remaining time displayed.

If there are scratches on discs, those

sections will be automatically avoided

(no recording will be placed in those

sections). Therefore, the recording

time will be reduced.

When recorded tracks are played

back using the cue and review

operations, some sounds may be

skipped.

For MiniDiscs on which repeated

recording and editing were performed,

some sounds may be skipped while

cueing and reviewing.

While recording, a track number may

be created in the middle of a track. If there are scratches or dust on a

MiniDisc, the track numbers following

that track will be increased by one.

MiniDiscs are recorded using a different system than is used for cassette tapes or DAT

recordings. Therefore, the following conditions may be encountered, depending on how

the disc has been recorded or edited. These are due to system limitations, and should

be considered normal.

MINIDISC SYSTEM LIMITATIONS

MD-MS702MK

– 6 –

PORTABLE MINIDISC RECORDER

MD-MS702

Quick-Guide

Guía rápida

Rechargeable battery power

Alimentación de la batería recargable

Connection

Conexión

Press the ■/:OFF button twice to begin charging.

Pulse dos veces el botón

■

/:OFF para iniciar la

carga.

AC power

Alimentación de CA

Mark

Marca

To the DC IN

5V jack

Al enchufe

DC IN 5V

AC 120V, 60Hz

To an AC outlet

120V CA, 60Hz

A un tomacorriente

de CA

Analog recording

Grabación analógica

Playback side

Lado de reproducción

(RIGHT)

(DERECHO)

(LEFT)

(IZQUIERDO)

To the line output jacks

on a stereo

A los enchufes de

salida de línea de un

equipo estéreo

Recording side

Lado de grabación

To the OPTICAL/LINE IN jack

Al enchufe OPTICAL/LINE IN

Connecting cable included with this unit

Cable de conexión incluido con este aparato

Digital recording

Grabación digital

DIGITAL OUT

OPTICAL OUT

Recording side

Lado de grabación

To the OPTI-

CAL/LINE IN jack

Al enchufe OPTI-

CAL/LINE IN

Optical digital

cable (AD-

M1DC, avail-

able separately)

Cable óptico

digital (AD-

M1DC, disponi-

ble por

separado)

Optical digital

cable (AD-

M2DC, available

separately)

Cable óptico digi-

tal (AD-M2DC,

disponible por

separado)

Playback side

Lado de reproducción

To the optical output

jack on a CD player

etc.

Al enchufe de salida

óptica de un

reproductor de dis-

cos compactos, etc.

To the optical output

jack on an MD player

etc.

Al enchufe de salida

óptica de un reproduc-

tor de minidiscos, etc.

AC 120V, 60Hz

To an AC outlet

120V CA, 60Hz

A un tomacorriente

de CA

To the DC IN 5V jack

Al enchufe DC IN 5V

Error messages Meaning Remedy

BATT EMPTY ●The battery has run down. ●Charge the rechargeable battery or

replace the alkaline batteries (or use

the AC adaptor for power).

BLANK DISC ●Nothing is recorded. ●Replace the disc with a recorded

disc.

Can't COPY ●No copy can be made because of

the SCMS copyright system. ●Record using the analog cable.

Can't EDIT ●A track cannot be edited. ●Change the stop position of the

track and then try editing it.

Can't REC ●Recording cannot be performed

correctly due to vibration or shock

in the unit.

●Re-record or replace it with another

recordable disc.

Can't WRITE ●Editing is impossible. ●Check the number of tracks.

DEFECT ●The disc is scratched. ●If the sound you hear is not correct,

try recording again.

●Replace the disc with another

recordable disc.

Din UNLOCK ●Poor connection of the digital cable. ●Connect the digital cable securely.

DISC ERROR ●The disc is damaged. ●Reload the disc or replace it.

DISC FULL ●The disc is out of recording space. ●Replace it with another recordable

disc.

HOLD ●The unit is in the safety mode. ●Return the HOLD switch to its

original position.

LOCKED

LOCK ERROR ●The EJECT lever was moved

during recording or editing. ●Turn off the power and remove the

MiniDisc.

NO DISC ●A disc has not been loaded. ●Load a disc.

PB DISC

PROTECTED ●The disc is write protected.

●You tried to record on a playback-

only disc.

●Move the write protection knob

back to its original position.

●Replace it with a recordable disc.

POWER ? ●Improper power is being supplied. ●Use one of the specified power

sources.

SORRY ●Since a track number is currently

being located or written to, the unit

cannot accept your command.

●Wait and then try the operation

again.

SYSTEM ERR ●The unit is malfunctioning and will

require service. ●For service, contact your local

Sharp authorized service center.

TEMP OVER ●The temperature is too high. ●Turn off the power, and wait for the

unit to cool.

TOC ERROR ●A large portion of the disc has been

damaged. ●Replace it with another recorded

disc.

TOC FULL ●There is no space left for recording

character information (track names,

disc names, etc.).

●Replace it with another recordable

disc.

Tr. Protect ●The track has been protected from

being erased. ●Edit the track with the device on

which it was recorded.

U TOC ERROR ●A large portion of the disc has been

damaged.

●There is an error in the recorded

signal.

●Replace it with another recorded

disc.

●Erase all of the signal errors, and

then try recording again.

? DISC ●A disc which contains data other

than music was played.

●There is an error in the signal from

the disc.

●A disc which contains non-music

data cannot be played.

●Replace it with another recorded

disc.

ERROR MESSAGES

MD-MS702MK

– 7 –

Playing a MiniDisc

Reproducción de un minidisco

Loading and playing a MiniDisc

Inserción y reproducción de un minidisco

●

The power will be turned on automatically, and play-

back will start from the first track. (Auto-play function)

●

La alimentación se conectará automáticamente, y la

reproducción empezará desde la primera pista.

(Función de reproducción automática)

●

After playback of the last track has finished, the unit

will stop automatically.

●

Después de terminar la reproducción de la última

pista, el aparato se detendrá automáticamente.

Playback does not start when a MiniDisc is inserted:

Press the button.

In the following cases, the auto-play function will not

work.

●

When the recordable MiniDisc write protection tab is

closed (page 9)

●

When the auto-play function has been canceled

(page 35)

La reproducción no empieza cuando se inserta un

minidisco:

Pulse el botón .

En los casos siguientes, la función de reproducción

automática no se activará.

●

Cuando esté cerrada la lengüeta de protección con-

tra escritura del minidisco grabable (página 9)

●

Cuando haya sido cancelada la función de

reproducción automática (página 35)

To interrupt playback:

Press the button during playback.

●To resume playback, press the button again.

To stop playback:

Press the ■/:OFF button.

To turn off the power:

Press the ■/:OFF button while in the stop mode.

●If the unit is not operated for at least 2 minutes

while in the stop mode, the power will be turned

off automatically.

To remove the MiniDisc:

Turn off the power and move the EJECT lever in the

direction indicated by the arrow.

Para interrumpir la reproducción:

Pulse el botón durante la reproducción.

●

Para reanudar la reproducción, pulse de nuevo el

botón .

Para detener la reproducción:

Pulse el botón

■

/:OFF.

Para desconectar la alimentación:

Pulse el botón

■

/:OFF estando en el modo de

parada.

●

Si el aparato no se utiliza durante un mínimo de

2 minutos estando en el modo de parada, la

alimentación se desconectará automáticamente.

Para extraer el minidisco:

Desconecte la alimentación y mueva la palanca

EJECT en el sentido indicado por la flecha.

Tone

Tono

Headphones

Auriculares

For the left (L)

Para la

izquierda (L)

For the right (R)

Para la

derecha (R)

To the

jack

Al enchufe

Remote control unit

Controlador remoto

Track number

Número de pista

Track name

Nombre de pista

(Nothing will be displayed for MiniDiscs that

do not contain track names.)

(No se visualizará nada para los minidiscos

que no tienen nombres de pistas.)

VOL /

NAME

Volume

Volumen

Volume (0 - 30)

Volumen (0 - 30)

BASS/DEL

BASS

BASS 1

BASS OFF

BASS 3

BASS 2

Bass sounds are emphasized slightly.

Bass sounds are emphasized more.

Bass sounds are emphasized even more.

Bass emphasis is canceled.

BASS 1

BASS OFF

BASS 3

BASS 2

Los sonidos graves se realzan ligeramente.

Los sonidos graves se realzan más.

Los sonidos graves se realzan aún más.

El realce de los graves se cancela.

Recording

Grabación

Recording from CDs or MDs (Synchro recording)

Grabación de discos compactos o minidiscos

(Grabación sincronizada)

Connect the external equipment.

Conecte el equipo externo.

Insert a recordable MiniDisc.

Inserte un minidisco grabable.

Press the REC button.

Pulse el botón REC.

While playing sound from the external equipment con-

nected to this unit, press the or button to adjust

the recording level.

Mientras se reproduce el sonido del equipo externo

conectado a este aparato, pulse el botón o

para ajustar el nivel de grabación.

Press the ENTER/F.PLAY/SYNCHRO button.

Pulse el botón ENTER/F.PLAY/SYNCHRO.

Begin playback on the source equipment.

Inicie la reproducción en el equipo fuente.

Put the unit in the recording stand-by mode. (Perform

steps 1 - 4 in the “Synchro recording” section.)

Ponga el aparato en el modo de espera de grabación.

(Realice los pasos 1 - 4 de la sección "Grabación

sincronizada".)

Press the button.

Pulse el botón .

To stop recording:

Press the ■/:OFF button.

●If the unit is left alone after the recording has stopped,

the power will be turned off approximately 2 minutes

later.

After recording:

Press the ■/:OFF button while in the stop mode.

To remove the MiniDisc:

Turn off the power and move the EJECT lever in the direc-

tion indicated by the arrow.

Para detener la grabación:

Pulse el botón

■

/:OFF.

●

Si el aparato no se utiliza después de finalizar la

grabación, la alimentación se desconectará 2 minutos

después aproximadamente.

Después de la grabación:

Pulse el botón

■

/:OFF estando en el modo de parada.

Para extraer el minidisco:

Desconecte la alimentación y mueva la palanca EJECT en

el sentido indicado por la flecha.

Recording from a tuner or a CD (Manual recording)

Grabación de un sintonizador o disco compacto

(Grabación manual)

–4 dB

0 dB

Flashing

Parpadeo

■Important

●Do not wear your headphones when you are

crossing streets or near traffic.

●Do not use your headphones while driving a

motor vehicle, it may create a dangerous traffic

hazard and may be illegal. Remember to obey

all of the safety rules in your area.

●Do not play the unit at a high volume. Hearing

experts advise against extended play at high

volume levels.

●If you experience ringing in your ears, reduce

the volume or discontinue use.

■

Importante

●

No se ponga auriculares cuando atraviese ca-

lles ni cuando esté cerca del tráfico.

●

No emplee los auriculares mientras conduce un

vehículo, porque puede crear situaciones

peligrosas en el tráfico y puede ser ilegal.

Recuerde que debe respetar las reglas de

seguridad de su zona.

●

No reproduzca sonido en el aparato a altos

niveles de volumen. Los expertos dicen que es

perjudicial la reproducción continuada a altos

niveles de volumen.

●

Si nota timbres en los oídos, reduzca el volumen

o no utilice el aparato.

■Volume setting

Reduce the volume before starting to play.

MiniDiscs, compared to ordinary cassette tapes,

have very little noise. If the volume is adjust accord-

ing to your usual expectations of noise, you may

damage your hearing due to the high volume.

■

Ajuste del volumen

Reduzca el volumen antes de iniciar la

reproducción. Los mínidiscos, en comparación con

las cintas de casete nomales, tienen muy poco

ruido. Si se ajusta el volumen de acuerdo con el

ruido que puede esperarse normalmente, podría

dañarse los oídos debido al alto volumen.

MD-MS702MK

– 8 –

1 Bottom Cabinet 1. Open the battery Lid. 8-1

2. Screw .....................(A1) x6

2 Top Cabinet 1. Screw .....................(B1) x4 8-1

2. Flat Cable ...............(B2) x2 8-2

3 Main PWB 1. Screw .................... (C1) x2 8-2

2. Flat Cable ...............(C2) x3

4 Mechanism Unit 1. Lift the left side, and remove 8-3

in the arrow direction.

DISASSEMBLY

Caution on Disassembly

Follow the below-mentioned notes when disassembling

the unit and reassembling it, to keep it safe and ensure

excellent performance:

1. Take the battery and minidisc out of the unit.

2. When disassembling the machine, be sure to withdraw

the power plug from the socket in advance.

3. When disassemble the parts, remove the nylon band or

wire holder as necessary.

To assemble after repair, be sure to arrange the wires as

they were.

If a screw of different length is fitted to the MD mecha-

nism (the screw of the part to be fitted to the MD

mechanism chassis), it may contact the optical pickup,

resulting in malfunction.

4. When repairing, pay due attention to electrostatic charges

of IC.

REMOVAL PROCEDURE

STEP FIGURE

Bottom Cabinet

Top Cabinet

Center

Cabinet

Pull

(A1)x1

Ø1.4x2mm

(A1)x1

Ø1.4x2mm

(A1)x2

Ø1.4x2mm

(A1)x2

Ø1.4x2mm

(B1)x1

Ø1.4x2mm

(B1)x1

Ø1.4x2mm

(B1)x2

Ø1.4x2mm

Figure 8-1

Figure 8-2

Mechanism Unit

Figure 8-3

Note:

1. Handle carefully the main PWB and flexible PWB.

After removing the flexible PWB (*1) for optical pickup from

the connector, wrap the front end of flexible PWB in conduc-

tive aluminum foil so as to protect the optical pickup from

electrostatic damage.

2. When removing the mechanism from the cabinet or when

installing it, it is advisable to

rotate the unit lock plate to lower the holder section.

(C1)x1

Ø1.7x2.5mm

(C1)x1

Ø1.7x2.5mm

Pull

Pull Pull

Pull

(B2)x1

(C2)x1

Main PWB

MD-MS702MK

– 9 –

REMOVING AND REINSTALLING THE MAIN PARTS

Remove the mechanism according to the disassembling meth-

ods 1 to 4. (See Page 8.)

How to remove the spindle motor (See Fig. 9-1.)

1. Remove the solder joint (A1) x 1 of flexible PWB.

2. Remove the screws (A2) x 3 pcs. and remove the spindle

motor.

Figure 9-5

Flexible PWB

solder joint

(A1) x1

Spindle Motor

(A2)x3

ø1.4x2.8mm

MD Mechanism

Figure 9-1

(B1)x2

Remove the solder joint

Stop Washer

(B2)x1

Drive Gear

(B3)x1

Lift Motor

(B4)x1

ø1.4x2.2mm

Lead wire

Figure 9-2

Figure 9-3

(E1)x1

ø1.7x2.5mm

Shaft

Pickup Unit

How to remove the optical pickup unit

(See Fig. 9-5.)

1. Remove the screw (E1) x 1 pc.

How to remove the magnetic head

(See Fig. 9-4.)

1. Remove the screws (D1) x 2 pcs.

2. Remove the soldering joint (D2) x2 pcs.

Note:

Mount carefully so as not to damage the magnetic head.

(D1)x2

Ø1.4x1.8mm

Pickup Unit

Magnetic Head

Solder

joint

(D2)x2

Figure 9-4

How to remove the lift motor (See Fig. 9-2.)

1. Remove the solder joint (B1) x 2 of lift motor lead wire.

2. Remove the stop washer (B2) x 1 pc., and remove the drive

gear (B3) x 1 pc.

3. Remove the screw (B4) x 1pc., and remove the lift motor.

Note:

Take care so that the motor gear is not damaged.

(If the gear is damaged, noise is raised in search mode.)

How to remove the sled motor (See Fig. 9-3.)

1. Remove the solder joint (C1) x 2 of sled motor lead wire.

2. Remove the screws (C2) x 2 pcs., and remove the sled

motor.

Note:

Take care so that the motor gear is not damaged.

(If the gear is damaged, noise is raised in search mode.)

(C2)x2

ø1.4x1.2mm

Sled Motor

Washer x2

(C1)x2

Mecha Flexible PWB

solder joint

MD-MS702MK

– 10 –

EEPROM DATA LIST

TEMP setting

Item display Set values

T M _ _ Calculate values

Sled setting Item display Set values

S L G _ 9 4 H

S L 2 _ 3 0 H

S L M _ 4 F H

S L V _ 3 6 H

S K k _ 4 3 H

S K t _ 4 0 H

S K m _ 4 3 H

DEQ. SET setting

Item display Set values

H Q 1 _ 9 0 H

H Q 2 _ 9 0 H

H S G _ 1 1 H

H S O _ F D H

L Q 1 _ 9 0 H

L Q 2 _ 9 0 H

L S G _ 1 1 H

L S O _ 0 0 H

G Q 1 _ 9 8 H

G Q 2 _ 8 4 H

G S G _ 1 1 H

G S O _ 0 0 H

G Q R _ 0 0 H

ADJ. SET setting

Item display Set values

C O K _ A 0 H

F A T _ C 0 H

T A T _ 3 E H

C A T _ 2 0 H

F A B _ 0 0 H

Control setting

Item display Set values

C T 0 _ 4 9 H

C T 1 _ C 8 H

P W L _ 0 0 H

R C 0 _ C 0 H

R C 1 _ F E H

S Y C _ A 6 H

D R 1 _ A 0 H

D R 2 _ A 6 H

I N 1 _ D 4 H

I N 2 _ 6 7 H

C T R _ 6 D H

C T 2 _ 9 4 H

C T 3 _ 3 3 H

C T 4 _ 6 4 H

C T 5 _ 7 4 H

C T 6 _ 0 8 H

C T 7 _ 4 2 H

S P M _ 0 0 H

M S L _ 0 0 H

R S L _ 0 0 H

BASS setting

Item display Set values

B S 1 _ 0 2 H

B S 2 _ A 4 H

B S 3 _ C 4 H

Item display Set values

F G _ _ 6 3 H

F F 1 _ 7 0 H

F F 2 _ F 0 H

F Z H _ E D H

F L n _ 0 9 H

D J G _ 1 4 H

F R V _ A A H

F P f _ 8 8 H

F L V _ 1 9 H

W T f _ 2 0 H

F S S _ 0 2 H

Fucus setting

Tracking setting

Item display Set values

T G _ _ 2 6 H

T F 1 _ 7 0 H

T F 2 _ E 0 H

T F S _ 0 0 H

T B o _ 2 B H

T B t _ 1 7 H

T K o _ 2 B H

T K t _ 1 9 H

T D o _ 6 7 H

T D t _ 2 A H

S C o _ 0 0 H

S C t _ 4 0 H

S C m _ 5 3 H

D B O _ 0 0 H

C L p _ 1 2 H

C L r _ 2 4 H

W T m _ E 0 H

Item display Set values

S P G _ 1 4 H

S P i _ A A H

S P m _ 7 9 H

S P o _ 4 F H

S P 1 _ 1 0 H

S P 2 _ 6 0 H

S P 3 _ F 2 H

S P 4 _ F 2 H

S P 5 _ 1 0 H

S P D _ 6 1 H

S P R _ C 4 H

Spindle setting

MD-MS702MK

– 11 –

: Digital EQ setting menu

: High-reflection pit section Digital EQ tap factor A, D

: setting

: High-reflection pit section Digital EQ tap factor B, C

: setting

: High-reflection pit section Autolevel slicer gain

: setting

: High-reflection pit section Autolevel slicer slice level offset

: setting

: Lows-reflection pit section Digital EQ tap factor A, D

: setting

: Low-reflection groove section digital EQ tap factor A, D

: setting

: Lows-reflection pit section Digital EQ tap factor B, C

: setting

: Low-reflection pit section Autolevel slicer gain

: setting

: Low-reflection pit section Autolevel slicer slice level offset

: setting

: Low-reflection groove section digital EQ tap factor B, C

: setting

: Low-reflection groove section Autolevel slicer gain

: setting

: Low-reflection groove section Autolevel slicer slice level offset

: setting

: Digital EQ-related other settings

: setting

PLAY

D E Q S E T

Digital EQ Setting

H Q 1

H Q 2

SKIP UP SKIP DOWN

H S G

SKIP UP SKIP DOWN

H S O

SKIP UP SKIP DOWN

L Q 1

SKIP UP SKIP DOWN

L Q 2

SKIP UP SKIP DOWN

L S G

SKIP UP SKIP DOWN

L S O

SKIP UP SKIP DOWN

G Q 1

SKIP UP SKIP DOWN

G S O

SKIP UP SKIP DOWN

D Q R

SKIP UP SKIP DOWN

G Q 2

SKIP UP SKIP DOWN

G S G

SKIP UP SKIP DOWN

* When the "STOP" button is pressed in specific menu, the TEST MODE STOP state is set.

* In specific state pressing the [DISP] key causes change to "focus setting menu".

* In the specific setting display state the setting change digit changes

when the [P-MODE] key is pressed.

1st digit (initial value) 2nd digit

P-MODE

* In the specific state the setting changes in the range of "0h to Fh"

when the [VOL UP/DOWN" key is pressed.

: Control setting menu

: Play start SD number, EEPROM version

: setting

: REC superposition, EL existence/nonexistence, move start minimum number,

high-speed jump over-run

: setting

: DC-IN existence/nonexistence judgment level, AC adapter judgment level,

built-in battery full judgment level

: setting

: Recording bit distribution parameter 0

: setting

: Recording bit distribution parameter 1

: setting

: Syncro level selection

: setting

: Dry cell exhaustion detection level setting 1

: setting

: Dry cell exhaustion detection level setting 2

: setting

: Built-in battery exhaustion detection level setting 1

: setting

: Built-in battery exhaustion detection level setting 2

: setting

: Intermittent servo restart accumulation sector number setting

: setting

: Control setting 2

: setting

: Control setting 3

: setting

: Control setting 4

: setting

: Control setting 5

: setting

: Control setting 6

: setting

PLAY

C T R L

Control Setting (record/playback machine)

C T 0

C T 1

SKIP UP SKIP DOWN

P W L

SKIP UP SKIP DOWN

R C 0

SKIP UP SKIP DOWN

R C 1

SKIP UP SKIP DOWN

S Y C

SKIP UP SKIP DOWN

D R 1

SKIP UP SKIP DOWN

D R 2

SKIP UP SKIP DOWN

I N 1

SKIP UP SKIP DOWN

I N 2

SKIP UP SKIP DOWN

C T R

SKIP UP SKIP DOWN

C T 2

SKIP UP SKIP DOWN

C T 3

SKIP UP SKIP DOWN

C T 4

SKIP UP SKIP DOWN

C T 5

SKIP UP SKIP DOWN

C T 6

SKIP UP SKIP DOWN

Continued to

the next page

SKIP UP SKIP DOWN

MD-MS702MK

– 12 –

: Control setting 2

: setting

: Special mode selection data (unprotect area)

: setting

: Monitor selection data (unprotect area)

: setting

: Control-related other setting data (unprotect area)

: setting

Continued from

the preceding page

C T 7

SKIP UP SKIP DOWN

S P M

SKIP UP SKIP DOWN

M S L

R S L

* When the "STOP" button is pressed in specific menu, the TEST MODE STOP state is set.

* In specific state pressing the [DISP] key causes change to "focus setting menu".

* In the specific setting display state the setting change digit changes

when the [P-MODE] key is pressed.

1st digit (initial value) 2nd digit

P-MODE

* In the specific state the setting changes in the range of "0h to Fh"

when the [VOL UP/DOWN" key is pressed.

* To monitor the EFM output (eye pattern) at TP139, change "MSL"

from 00 to 80. The value of "MSL" is set to 00 when shipped.

MD-MS702MK

– 13 –

Figure 13 BLOCK DIAGRAM

1~4,9~12

2,3,

15~17,

19~22

25~30

13,14,24,42

5,9,10,14,

23,27,28,32

24,26,

29,31

3,5~9,

26~29

32~37

39~46

57,66

LASER

HEAD

M902

SLED MOTOR

M901

SPINDLE

MOTOR

M903

LIFT MOTOR

MOTOR

DRIVE

3-PHASE

BRUSH LEESS

DRIVER

BA6965FV

VCC VS

HEAD

DRIVER

VCC

RF SIGNAL

PROCESSOR

IR3R55

PICKUP COIL

DRIVER

VCC VM

4 Mbit

D-RAM

IX2567AF

ENDEC

ATRAC

LR376481

SYSTEM

MICROCOMPUTER

IX2680AF

EEPROM

S29L294A

DISPLAY UNIT

OPERATION UNIT

AD/DA

CONVERTER

POWER

DRIVE

2.5V

REGULATOR

+2.8V

-2.8V

IR3M09N

VCC

POWER DRIVE

IR3M09N

POWER SUPPLY

MICROCOMPUTER

IR3R54N

AUDIO AMP.

IR3R54N

AUDIO AMP.

+6~8

DC IN

RIPPLE

FILTER

DIGITAL INPUT

OPTICAL

INPUT UNIT

LINE INPUT

LINE OUT

MIC IN

HEAD PHONES

4.5V

REGULATOR

(ON/OFF)

REMOTE CONTROL

CONSTANT

CURRENT DRIVE

3V DC/DC

CONVERTER

S8327B30 BATTERY

VOLTAGE

REGULATOR

CONSTANT

CURRENT DRIVE

RECHARGEABLE

BATTERY

OPIC

POWER SELECT

CHARGE DRIVE

VCC

IC202

VCC VEE

+2.8

IC901

+2.5

IC651

LB1638M

+2.5

7,9

+2.2

+2.5

74ACT02F

IC351

IC101

IC601

MPC17A39

IC201

IC401 +2.5

IC402

+2.8

IC501

AK4514VF

+2.5P

IC771

TK71225M

+2.8

IC841

IC821

+2.5

IC875

TK71325M

IC701

+2.8V -2.8V

IC703

+2.8V -2.8V

J701

+4.5

J701

J702

Q721

IC702

TK71354M

J703

IC801,803,804

+1.8~5.5V

IC871

3~5V (1.8~3.4V)

IC800,805,Q801

(2.9~4.1V)

J801

DC JACK

(4~5.5V)

PICK

11,8

1,2,4,

5,10,13

6,8

1,6,

19,20

12,16

17~24

1~9

11~19

58,59

70~74

2,12,62,

68,78,87

82~84

89~100

16~19

37~39

48~55

78~80

9,23,

24,32,

22,23

28~30

40,43,58

1~4

8 3,6

1,5

18,19

5,6

3,6 3,6

3,6

5~9,11,16

19,20

7~12

15,17

22,23,24

10,12

20 17

+2.5

MD-MS702MK

– 14 –

123456

16 15 14 13 12 11 10

987654321

8765

4321

11 10

11 27

9876

54321

123456789

51525354555657585960616263646566676869707172737475

10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25

100

242322212019181716151413

48 47 46 45 44 43 42 41 40 39 38 37

13141516171819202122232425

22232425

51 52 53 54

55 56 57 58 59 60 61 62 63

123456789

10 11 12 13 14 15 16 17 18 19 20 21 22

123456789

10 11 12 13 14 15 16 17 18 19 20 21 22

MAIN PWB-A1

116

SW902

DISC

PROTECT

HEAD

PH901

COM

–

–+

PWB

FLEXIBLE

PICKUP UNIT

FLEXIBLE

PWB

RF1

RF3

RF4

RF2

F–

T+

F+

T–

AGND

LDVAR

DGND

VCC

CVCC

COM

LDON

MP/R

VCC

OPIC

CIN

MCCK

EFMO

SPDRR

GND

VCC

GND

CSL2

CSL1

CST

COM

WIN

VIN

UIN

UOUT

WOUT

VCC

BRK–

BRK+

STBY

RIB

VOUT

DISCIN

DISCPR

INNSW

PDCNT

SPDRF

SLDRF

SLDRR

DCNT1

GND

VD3

FO3

RO1 PGND

RO3

VD3

VD4

PGND

RO4

RO2

RI4

FI4

FI3

RI3

VD4

FO4

RI2

FI2

FI1

RI1

VD2

FO2

PGND

VD2

VD1

PGND

FO1

VD1

CLK

AGND

T+

T–

F–

F+

LDCNT1

LDCNT2

FODRF

FODRR

TRDRF

TRDRR

VCC

PLVDRY

PLVDCI

RKEY

HKEY1

HKEY2

LDVAR

TEMP

SYWR

SYRD

SYRS

RKEY

HSTOP

SYD0

SYD1

SYD2

DSPSCK

DSPDAT

DSPSTB

BEEP

CLOCK

SYD3

SYD4

SYD5

SYD6

SYD7

RPLAY

LDON

OPICGA

RFLAT

VCC

GND

RACLK

LDON

HFON

SYD3

SYD4

SYD5

SYD6 VLIM

AVDD

AVREF0

PLVINN

DINT

SENSE

FOK

XRT

FOK

DINT

RESET

SENSE

XT1

XT2

VSS

HKEY1

HKEY2

TEMP

AVSS

LDVAR

MDOUT

AVREF1

SYD0

SYD1

SYD2

SYD7

SYWR

SYRD

SYRS

RKEY

BEEP

CNTRY

EJECT HDON

DSPSTB

DSPDAT

DSPSCK

RPLAY

HSTOP

KHOLD

F–

T+

F+

T–

EFMMON

ROUT

GOUT

TTR

EFMAGI

EFMAGC

AGND

AVCC

EFMI

EFMO

RF2-1

ADAG

ADAGC

ADIPI

ADIPO

ADLPFO

22KO

22KI

WBO

TCGO

AOUT

BOUT

EOUT

FOUT

DVCC

DATA

CLOCK

LATCH

DTEMP

DGND

AGND

SGAIN

DISC

STBY

AVCC

BIAS

FIN

EIN

BIN

AIN

TCGI

RFADD

REFO

REFI

RF4

RF3

RF2

RF1

BIAS

ADIP

AGC

EMF

AGC

DIFF

and

HPF

LPF

LOGIC

LDCNT1

RAA10

ACRCER

PLCK

SYRS

FEMON

DADATA

ADDATA

DFCK

BCLK

LRCK

DGND

VDD3

DOUT

DIN

X1O

X1I

VPD

VXI

ADPON

DAPON

OPTCNT

DCNT1

EMPH1

LDCNT2

X700KO

TOTMON

TEMON

SBCK

SBO

SBSY

SFSY

FOK

SENSE

COUT

MCCK

DINTX

RSTX

SYSD0

SYSD1

SYSD2

SYSD3

SYSD4

SYSD5

SYSD6

SYRDX

SYWRX

VBAT

WBI

TEST1

TEST0

FODRR

FODRF

TEST2

X176KO

TRDRF

TRDRR

SLDRF

SLDRR

SPDRF

SPDRR

TCG

AGND

AIN

FIN

EIN

BIN

DGND

VDD1

DGND

EFMI

AVCC

DGND

VDD1

RAD0

RAD1

RAWEX

RARASX

RAA9

DGND

VDD2

RAD3

RAD2

RACASX

RAOEX

RAA8

RAA7

RAA6

RAA5

RAA4

RAA0

RAA1

RAA2

RAA3

TCRS

EFMO

RMDAT

OPICGA

RFLAT

RACLK

RADAT

PLVDRY

PLVDCI

PLVINN

OPICGA

LDVAR

LDON

TEMP

RFLAT

RACLK

RADAT

XRT

RKEY

HKEY2

HKEY1 FODRF

FODRR

TRDRF

TRDRR

SLDRF

SLDRR

SPDRF

SPDRR

LDCNT1

LDCNT2

DCNT1

FOK

SENSE

CIN

MCCK

DINT

SYD0

SYD1

SYD2

SYD3

SYD4

SYD5

SYD6

SYD7

SYWR

SYRD

SYRS

SYSD7

CN101

100K

R442

R444

2.7K

C911

0.1

L651

0.47µH

C600

15/10

Q101

2SA17457

C104

0.027

C107

0.012 C131

330P(CH)

C109

1 C106

0.22

R101

22K

R102

22K

C110

0.22

CK112

IC201

LR376481

ENDEC

R222

R207

680

IC101

IR3R55

C111

0.0033

C102

R104

22K

R103

22K

C161

1 R154

1.2K

L100

10µH

C100

10/6.3

XL201

33.8688MHz

C211

5P(CH)

R203

100

C212

5P(CH)

C622

2.2

IC601

MPC17A39

C443

0.47 C441

10P(CH)

C442

680P

IC441

TC7W14FU

INVERTER

R443

39K

R441

12K

R408

100K

IC404

7SH00FU

R403

22K

R404 150K

IC40

IX2680

TP144

C103

C902

0.01

10K

R909 R908

100K

R907

180K

R903

150

R904

22K

R901

R902

IC901

BA6965FV

3-PHASE

BRUSH

DRIVER

C907

0.0022

C905

0.0022

C909

0.047

C906

0.0022

C908

0.47

C910

0.047

100K

R905

R906

270K

C903

3.3

R161

1.2K

C165

0.033

R205

560K

C205

0.1

R206

220K

C651

IC651

LB1638M

C357

0.1

IC351

74ACT02F

HEADR DRIVE

C354

0.1

C351

100P(CH)

D352

SB0209CP

D351

SB0209CP

0.039

C361

R361

8.2

C353

10/6.3

R423

22K

R425

22K

R424

22K

R105

390K

Q351

2SK2909

Q353

2SK2909

Q352

2SK2911

Q354

2SK2911

C123

390P

C124

390P

C121

270P(CH)

C122

270P

(CH)

R204

C203

0.1

C207

0.1

SW401

EJECT

R406

100K

SW402

HOLD

R405

10K

R407

10K

R409

100K

L601

47µH

C601

1/6.3

L602

47µH

C602

1/6.3

L603

47µH

L604

47µH

C603

1/6.3

C604

1/6.3

L600

2.2µH

L608

47µH

R601

56K

TP601

L610

47µH

L609

47µH

C610

C609

R922

100K

R921

330

L204

R106

56K

C608

3.3

R426

100K

TP901

C112

0.033

C952

47/4

C951

47/4

C130

0.1

M902

SLED MOTOR

M901

SPINDLE

MOTOR

M903

LIFT MOTOR

SW901

DISC

X176KO

PICKUP COIL DRIVER

SYSTEM MICRO

IC101 : RF SIGNAL

PROCESSOR

CK102

CK103

CK104

CK101

TP145

TP132

CK108

TP133

TP130

TP131

CK107

TP100

CK111

CK110

CK109

TP139

TP119

TP115

TP105

TP101

TP109

TP106

TP102

TP108

TP103

TP114

TP110

TP118

TP111

TP121

TP122

TP120

TP117

TP116

CN601

TP651

TP652

TP653

TP654

TP655

TP656

TP657

TP658

TP659

TP660

TP661

TP662

TP663

TP664

TP665

TP666

TP610

NAND GATE

MOTOR DRIVE

TP401

TP403

TP402

TP413

TP208

CK204

CK205

CK206

CK203

CK202

CK201

TP211

TP210

TP209

TP201

CK207

TP206

TP207

PLAYBACK SIGNAL

RECORD SIGNAL

Figure 14 SCHEMATIC DIAGRAM (1/3)

P14 P15 P16

NOTES ON SCHEMATIC DIAGRAM can be found on page 23.

MD-MS702MK

– 15 –

321

8765

4321

9876

54321

201918

161514

12 1110

987654

10 11

123456789

51525354555657585960616263646566676869707172737475

10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25

100

2345

6789

10111213141516171819202122232425

22232425

51 52 53 54

55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75

100

70 71 72 73 74 75

4M D-RAM

POW

JACK PWB-A2

CLOCK

RKEY

RPLAY

VSS

VDD

OUT

CIN

MCCK

VCC

PLVDRY

PLVDCI

RKEY

HKEY1

HKEY2

LDVAR

TEMP

SYWR

SYRD

SYRS

RKEY

HSTOP

SYD0

SYD1

SYD2

DSPSCK

DSPDAT

DSPSTB

BEEP

CLOCK

SYD3

SYD4

SYD5

SYD6

SYD7

RPLAY

LDON

OPICGA

RFLAT

VCC

GND

RACLK

RADAT

PBLAT

RCLAT

PBOPON

MCPGIN

INPGIN

INPGCK

EMPH0

LDON

HFON

SYD3

SYD4

SYD5

SYD6 VLIM

AVDD

AVREF0

PLVINN

DINT

SENSE

FOK

XRT

FOK

DINT

RESET

SENSE

XT1

XT2

VSS

OEM

VDD

SLCNT3

SLCNT5

SLCNT1

SLCNT4

SLCNT6

SLCNT2

SWPUP

PCNT2

CKSTP

DISCIN

INNSW

DISCPR

PDCNT

VPP

PHOLD

PCNT1

CIN

ELON

PSLINN

PSLDCI

PSLDRY

TEST1

TEST0

SPIN

VDD

EPCS

INPGCK

RCPCNT

EEPK RTCCK

EEPD RTCDT

RTCWR

RTCCE

VSS

EMPH0

HPLAY

HREC

MCPGIN

INPGIN

INPGCK

OPTCNT

DIN

PBOPON

BEEP

PBLAT

RCLAT

RADAT

RACLK

ADPON

DAPON

DFCK

LRCK

BCLK

ADDATA

DADATA

EMPH1

EMPH0

RMDAT

DEM0

DEM1

RKEY

RPLAY

SCLK

STDO

MCLK

LRCK

STDI

PWAD

PWDA

PBAULT

BEEP

AUDATA

AUSCLK

RCAULT

PBMUTE

RESET

INPGIN

MCPGIN

DIN

OPTCNT

INPGCK

VCCMIC

VCC2.8X

VCC2.8

DGND

SDTI

CMODE

DEM1

DEM0

AOUTL

AOUTR

VCOM VCMR

VCML

AINL

PWDA

PWAD

MCLK

LRCK

SCLK

SDTO

HKEY1

HKEY2

TEMP

AVSS

LDVAR

MDOUT

AVREF1

SYD0

SYD1

SYD2

SYD7

SYWR

SYRD

SYRS

RKEY

VCC

DO GND

PRTCT

BEEP

CNTRY

PCNT1

EAOUT

GND

VREF

EAIN–

EAIN+

EJECT HDON

DSPSTB

DSPDAT

DSPSCK

RPLAY

HSTOP

KHOLD

MCPGIN

INPGIN

EFMMON

LDCNT1

RAA10

ACRCER

PLCK

SYRS

FEMON

DADATA

ADDATA

DFCK

BCLK

LRCK

DGND

VDD3

DOUT

DIN

X1O

X1I

VPD

VXI

ADPON

DAPON

OPTCNT

DCNT1

EMPH1

LDCNT2

X700KO

TOTMON

TEMON

SBCK

SBO

SBSY

SFSY

FOK

SENSE

COUT

MCCK

DINTX

RSTX

SYSD0

SYSD1

SYSD2

SYSD3

SYSD4

SYSD5

SYSD6

SYRDX

SYWRX

VBAT

WBI

TEST1

TEST0

FODRR

FODRF

TEST2

X176KO

TRDRF

TRDRR

SLDRF

SLDRR

SPDRF

SPDRR

TCG

AGND

AIN

FIN

EIN

BIN

DGND

VDD1

DGND

EFMI

AVCC

DGND

VDD1

RAD0

RAD1

RAWEX

RARASX

RAA9

DGND

VDD2

RAD3

RAD2

RACASX

RAOEX

RAA8

RAA7

RAA6

RAA5

RAA4

RAA0

RAA1

RAA2

RAA3

TCRS

EFMO I/O1

I/O2

RAS

VCC A4

CAS

I/O3

I/O4

GND

EAIN+

EAIN–

VREF

GND

EAOUT

RMDAT

OPICGA

RFLAT

RACLK

RADAT

PBLAT

RCLAT

PBOPON

PLVDRY

PLVDCI

PLVINN

HPLAY

HREC

RCPCNT

PCNT1

RCPCNT

DSPDAT

DSPSCK

DSPSTB

PHOLD

PCNT1

PCNT2

HPLAY

HREC

RPLAY

PCNT2

PHOLD

PSLDCI

PSLINN

PSLDRY

PLVDCI

PLVINN

PLVDRY

PDCNT

DISCPR

INNSW

DISCIN

ADDATA

DFCK

BCLK

LRCK

DIN

ADPON

DAPON

EMPH1

OPTCNT

XRT

PSLDRY

PSLDCI

PSLINN

RKEY

HKEY2

HKEY1

EFMO

HSTOP

HPLAY

HREC

HKEY2

HKEY1

FODRF

FODRR

TRDRF

TRDRR

SLDRF

SLDRR

SPDRF

SPDRR

LDCNT1

LDCNT2

DCNT1

FOK

SENSE

CIN

MCCK

DINT

SYD0

SYD1

SYD2

SYD3

SYD4

SYD5

SYD6

SYD7

SYWR

SYRD

SYRS

DADATA

SYSD7

4.5 REGULATOR

(ON/OFF)

AD/DA

CONVERTER

L863

4.7µH

D861

RB491D

C863

C864

33/6.3

L171

10µH

100K

R442

R444

2.7K

L651

0.47µH

C600

15/10

C774

CN451

CN482

C868

C865

L862

47µH

C869

33/6.3

POWE

IR3

R846

10K

C845

47P

(CH)

R843

100K C842

22P(CH)

R848

220K

R847

330K

R852

1.5M

IC202

IX2567AF

C202

10/6.3

C201

IC201

LR376481

ENDEC

R222

R207

680

L202

10µH

L100

10µH

L201

0.47µH

C100

10/6.3

R841

100K

C850

0.001

CN701

R849

33K

R823

100K R828

270K

C825

68P

(CH)

R829

33K

R827

300K

R826

10K

R821

100K

C830

0.001

R832

3.3M

C822

39P

(CH)

C847

10/10

L842

10µH

C846

C827

3.3

D821

F1J2F

C826

L822

10µH

C821

220/4

C810

0.33/10

R811

180K

R810

180K

C172

33/6.3

C171

33/6.3

XL201

33.8688MHz

C211

5P(CH)

R203

100

C212

5P(CH)

C443

0.47 C441

10P(CH)

C442

680P

IC441

TC7W14FU

INVERTER

R443

39K

R441

12K

R408

100K

IC404

7SH00FU

R403

22K

R404 150K

IC401

IX2680AF

C866

D862

RB521S30

IC702

TK71354M

C431

0.047

1SS361

D431

330K

R431

R482

18K

C481

0.1

R481

36K

R421

100K

R205

560K

C205

0.1

R206

220K

C651

IC651

LB1638M

R420

R419

R423

22K

R425

22K

R424

22K

R402

10K

R204

C203

0.1

C207

0.1

R422

33K

R412

10K

R411

100K

IC402

S29L294A

E2-PROM

R415

R413

R414

C401

0.1

SW401

EJECT

R406

100K

SW402

HOLD

R405

10K

R407

10K

R409

100K

C886

10/10

L886

0.47µH

S80821LN

IC431

Q401

2SA17457

R400

3.9K

C604

1/6.3

L600

2.2µH

R458

56K

R457

18K

R456

8.2K

R455

5.6K

R454

56K

R453

18K

R452

8.2K

R451

5.6K

L204

R861

100K

R426

100K

D831

1SS372

C831

0.1

C832

0.1

D201

1SS369

D841

F1J2F

0.2

IC77

TK712

2.5V REGU

L772

4.7µH

C508

IC501

AK4514VF

R500

4.7

C507

10/6.3

R504

20K

SYSTEM MICROCOMPUTER

RESET

TP610

NAND GATE

MOTOR DRIVE

TP401

TP403

TP402

TP413

TP208

CK204

CK205

CK206

CK203

CK202

CK201

TP211

TP210

TP209

TP202

TP201

CK207

TP206

TP203

TP204

TP205

TP200

TP405

TP404

TP406

TP412

TP407

TP411

TP408

TP409

TP410

TP810

TP762

TP763

TP764

TP765

TP766

TP767

TP768

TP769

TP770

TP771

TP772

TP773

TP774

TP775

TP776

TP777

TP778

TP779

TP780

TP783

TP784

TP785

TP787

TP781

TP761 TP561

TP562

TP563

TP564

TP565

TP566

TP567

TP568

TP569

TP570

TP571

TP572

TP573

TP574

TP575

TP576

TP577

TP578

TP579

TP580

TP581

TP582

TP584

TP585

TP586

TP588

TP789

TP790

TP791

TP792

TP793

TP590

TP591

TP592

TP593

TP453

TP452

TP451

TP461

TP454

TP464

TP455

TP456

TP457

TP458

TP459

TP460

TP462

TP463

TP481

TP482

TP483

TP487

TP486

TP485

TP484

TP811

TP207

78 9 10 11 12

The numbers 1 to 18 are waveform numbers shown in page 43 (MD-MS702).

Figure 15 SCHEMATIC DIAGRAM (2/3)

P14 P15 P16

MD-MS702MK

– 16 –

Figure 16 SCHEMATIC DIAGRAM (3/3)

123456

321

242322

201918

161514

12 1110 987654321

1234

13 18

16 21 22 23 24

123456789

101112

151413 181716 2120 23 242219

AUDIO AMP.

CONSTANT

CURRENT DRIVE

POWER DRIVE

IC821

IR3M09N

MIC IN

LINE

JACK PWB-A2

FLEXIBLE

PWB

FLEXIBLE

PWB

KEY FLEXIBLE

PWB UNIT

LCD

DRIVER

GND

P-MODE

C-MODE

ENTER

DISPLY

VOL DOWN

VOL UP

BASS

EDIT

REC

SKIP DOWN

SKIP UP

STOP

PLAY LCD

CLOCK

RKEY

RPLAY

AGND

LIHP

LOUT

RIHP

ROUT

DGND

VEE

VCC

DIN

OPTCNT

INPGCK

INPGIN

MCPGIN

R-CH

L-CH

RESET

RCAULT

PBAULT

PBMUTE

BEEP

AUDATA

AUSCLK

MCPGIN

INPGIN

INPGCK

OPTCNT

DIN

PBOPON

BEEP

PBLAT

RCLAT

RADAT

RACLK

ADPON

DAPON

DFCK

LRCK

BCLK

ADDATA

DADATA

EMPH1

EMPH0

RMDAT

DEM0

DEM1

RKEY

RPLAY

SCLK

STDO

MCLK

LRCK

STDI

PWAD

PWDA

PBAULT

BEEP

AUDATA

AUSCLK

RCAULT

PBMUTE

RESET

INPGIN

MCPGIN

DIN

OPTCNT

INPGCK

VCCMIC

VCC2.8X

VCC2.8

DGND

SDTI

CMODE

DEM1

DEM0

AOUTL

AOUTR

VCOM

AGND

VA VRDA

VRAD

AINR

VCMR

VCML

AINL

PWDA

PWAD

MCLK

LRCK

SCLK

SDTO

ROUT

LOUT

VCC

DGND

RIHP

LIHP

AGND

RI LI

VEE

L-CH

R-CH

KEY

PLAY

DATA

PCNT1

EAOUT

GND OUT

VCC

PWM

STATE

ROSC

OSC

VREF

EAIN–

EAIN+

OSCIN

OSCOUT

GND

VCC

OSCOUT

OSCIN

EAIN+

EAIN–

VREF

OSC

ROSC

STATE

PWM

VCC

OUT

GND

EAOUT

VCC

GND

OUT

VSS

VDD

RCPCNT

PCNT1

CNT

DSPDAT

DSPSCK

DSPSTB

HPLAY

HREC

RPLAY

PCNT2

PHOLD

PSLDCI

PSLINN

PSLDRY

PLVDCI

PLVINN

PLVDRY

MICOM2.5V

HSTOP

HPLAY

HREC

HKEY2

HKEY1

4.5 REGULATOR

(ON/OFF)

AD/DA

CONVERTER

D493

015Z5.1Y

L863

4.7µH

D861

RB491D

C863

C864

33/6.3

L171

10µH

D494

15AZ7.5Y

C774

CN451

CN482

C843

100P(CH)

C868

C865

L862

47µH

C869

33/6.3

POWER DRIVE

IC841

IR3M09N

L841

4.7µH

R844

15K

C848

R846

10K

C845

47P

(CH)

C844

100P(CH)

R843

100K C842

22P(CH)

R848

220K

R847

330K

R852

1.5M

R841

100K

C850

0.001

CN701

R849

33K

D822

RB521S30

R831

100K

C829

0.01

C823

100P(CH)

L821

4.7µH

R823

100K R828

270K

R824

15K

C825

68P

(CH)

R829

33K

C828

R827

300K

R826

10K

R821

100K

C830

0.001

R832

3.3M

C822

39P

(CH)

C824

100P(CH)

C847

10/10

L842

10µH

C846

C827

3.3

D821

F1J2F

C826

L822

10µH

C821

220/4

C810

0.33/10

R811

180K

R810

180K

C172

33/6.3

C171

33/6.3

C866

D862

RB521S30

IC702

TK71354M

R878

100K

R874

470K

C878

3.3

R873

IC872

TC7W32FU

C-MOS LOGIC

C877

10/6.3 3V DC/DC

CONVERTER

C874

10/10

C872

Q871

NDS335N

C871

D873

1SS372

C873

C849

0.01

R851

100K

D842

RB521S30

D802

SB10015C

IC803 NDH831N

CONSTANT

CURRENT DRIVE

R482

18K

C481

0.1

R481

36K

C875

0.22

R877

100K

R876

100K

C880

0.01

C879

IC874

TC7S00FU

CHARGE DRIVER

R882

100K

R881

100K

R879

100K

R880

100K

R809

100K

D877

1SS360

C886

10/10

L886

0.47µH

IC804

RN4904

IC842

NDS335N

IC822

NDS335N

C881

D875

1SS378

IC875

TK71325M

R872

100K

Q872

DTC144 EE

Q873

2SJ305

IC873

S80827LN

Q401

2SA17457

R400

3.9K

R458

56K

R457

18K

R456

8.2K

R455

5.6K

R454

56K

R453

18K

R452

8.2K

R451

5.6K

R861

100K

D831

1SS372

C831

0.1

C832

0.1

D841

F1J2F

D871

RB491D

L871

47µH

R875

100K

IC876

RN4904

POWER SELECT

CHARGE DRIVE

R814

3.9K

R818

10K

R815

3.9K

C802

Q801

2SD1950

D801

015Z5.1Y

R816

1.2K

IC800

HN1C03FU

R801

680K

R819

270

C808

R808

39K

R807

27K

R806

680K

C807

0.1

R805

470K

C806

3.3

L801

1µH

C805

100/6.3

C804

IC801

HAT1025R

CONSTANT

CURRENT DRIVE

R804

100K

Q803

DTC144 EE

Q802

DTC144 EE

R803

100K

R802

390K

C803

0.1

IC805

UMD3N

CONSTANT

CURRENT DRIVE

D800

RB491D

L888

CORE

L887

CORE

R817

680

C759

0.056

C761

C762

C702

10/6.3

R756

27K

R701

100

C756

0.68

R762

3.3K

R761

3.3K

R754

330K

R757

27K

C757

0.68

IC703

IR3R54N

AUDIO AMP.

IC701

IR3R54N

C703

0.01

R703

150K

C758

3.3/10

C755

0.01

C753

C701

10/6.3

R702

100

L771

47µH

C771

33/6.3

C772

33/6.3

C773

0.2

IC771

TK71225M

2.5V REGULATOR

C775

0.01

L710

0.47µH

C710

0.1

C510

2.2

C509

2.2

R502

470

R501

470

C502

0.0022

C501

0.0022

C504

3.3/10

C503

3.3/10

L500

4.7µH

L772

4.7µH

C508

C500

10/6.3

IC501

AK4514VF

R500

4.7

C507

10/6.3

D492

015Z5.1Y

L491

4.7µH

C722

3.3/10

C721

3.3/10

C723

0.001

C735

0.001 C736

0.01

C451

0.001

C724

0.001

C731

0.22

R727

10K R723

6.8K

R724

6.8K

C725

3.3/10

C727

Q721

2SC4213B

R725

100

R726

39K

R728

C726

3.3/10

R713

10K

Q711

RN1444A

R717

C712

100P

(CH)

C714

R714

10K

C713

C711

100P

(CH)

C715

0.1

R715

100K

R716

100K

C734

0.1

C733

0.1

R720

8.2K

R719

8.2K

R712

5.6K

R711

5.6K

C754

R753

150K

L751

47µH

L752

47µH

C768

0.22

R752

C767

0.22

R751

R729

2.7K

R730

2.7K

TP721

C491

0.1

D491

015Z5.1Y

R504

20K

R503

20K

R767

R768

1K R766

R765

C751

0.082

C752

0.082

R492

L452

L454

L453

L457

L458

L456

J702

J703

HEADPHONES

J701

J801

DC IN

L702

L703

L713

L714

L704

L712

L711

X700K

POWER SUPPLY

MICROCOMPUTER

POWER SELECT

CHARGE DRIVE

2.7V RESET

IC871

S8327B30

TP810

TP762

TP763

TP764

TP765

TP766

TP767

TP768

TP769

TP770

TP771

TP772

TP773

TP774

TP775

TP776

TP777

TP778

TP779

TP780

TP783

TP784

TP785

TP787

TP781

TP761 TP561

TP562

TP563

TP564

TP565

TP566

TP567

TP568

TP569

TP570

TP571

TP572

TP573

TP574

TP575

TP576

TP577

TP578

TP579

TP580

TP581

TP582

TP584

TP585

TP586

TP588

TP789

TP790

TP791

TP792

TP793

TP590

TP591

TP592

TP593

TP453

TP452

TP451

TP461

TP454

TP464

TP455

TP456

TP457

TP458

TP459

TP460

TP462

TP463

TP481

TP482

TP483

TP487

TP486

TP485

TP484

TP729

TP712

TP713

TP711

TP714

TP703

TP705

TP708

TP701

TP709

TP704

TP702

TP707

TP722

TP723

TP724

TP725

TP726

TP 727

TP728

TP807

TP808

TP809

BATTERY

TERMINAL

EXT.BATTERY

TERMINAL

TP805

TP806

TP804

TP803

TP811

TP500

TP802

TP801

PLAYBACK SIGNAL

RECORD SIGNAL

NOTES ON SCHEMATIC DIAGRAM can be found on page 23.

P14 P15 P16

The numbers 5 to 8 are waveform numbers shown in page 43 (MD-MS702).

MD-MS702MK

– 17 –

1.0V

2.1V

5.0V

2.5V

10.8V

2.5V

1.0V

2.5V

0.95V

0.35V

.035V

2.5V

0.25V

2.23V

2.5V

0.7V

1.29V

1.26V

0.7V

1.26V

2.52V

0.18V

2.52V

1.46V

2.52V

2.51V

1.26V

1.8V

1.26V

2.52V

1.0V

1.5V

1.7V

2.5V

1.9V

0.9V

1.4V

0.6V

2.53V

0.6V

1.0V

1.8V

2.0V

1.6V

1.7V

1.0V

2.5V

1.27V

1.26V

2.2V

1.43V

2.15V

1.0V

0.6V

1.4V

0.9V

2.5V

0.8V

0.9V

1.0V

1.8V

2.0V

1.3V

1.5V

1.1V

1.7V

2.5V

1.6V

2.0V

1.0V

0.9V

2.15V

0.8V

2.15V

1.0V

2.3V

2.15V

1.0V

2.15V

1.0V

2.15V

1.0V

2.15V

2.5V

0.5V

0.6V

0.5V

1.0V

1.2V

0.9V

1.2V

0.4V

2.45V

2.5V

NO. VOLTAGE

IC101

NO. VOLTAGE

IC201

NO. VOLTAGE

100

2.5V

1.18V

2.42V

2.1V

2.5V

2.9V

1.8V

2.5V

1.48V

2.5V

2.46V

2.5V

0.27V

1.5V

2.47V

2.5V

2.2V

2.43V

0.7V

0.8V

0.95V

1.1V

0.95V

1.1V

0.8V

2.47V

2.96V

2.5V

2.35V

2.75V

3.12V

0.4V

2.5V

2.0V

2.5V

1.2V

0.45V

2.5V

0.3V

NO. VOLTAGE

IC401

NO. VOLTAGE

100

NO. VOLTAGE

IC202

NO. VOLTAGE

IC404

2.5V

NO. VOLTAGE

IC431

1.0V

1.2V

1.1V

1.2V

1.3V

2.5V

NO. VOLTAGE

IC441

2.5V

1.2V

2.5V

NO. VOLTAGE

IC402

5.0V

NO. VOLTAGE

IC801

5.0V

NO. VOLTAGE

IC803

1.4V

2.5V

2.8V

NO. VOLTAGE

IC771

4.5V

7.7V

NO. VOLTAGE

IC702

1.25V

0.9V

1.25V

1.23V

1.1V

0.8V

4.8V

0.4V

1.0V

NO. VOLTAGE

IC821

5.0V

4.8V

NO. VOLTAGE

IC871

4.8V

NO. VOLTAGE

IC873

3.5V

2.97V

4.9V

NO. VOLTAGE

IC874

5.0V

5. 0V

5.0V

NO. VOLTAGE

IC872

1.25V

0.9V

1.33V

1.22V

4.8V

0.4V

1.0V

NO. VOLTAGE

IC841

NO. VOLTAGE

IC501

NO. VOLTAGE

IC601

–2.85V

2.75V

0.8V

NO. VOLTAGE

IC701

1.3V

0.95V

1.9V

1.95V

2.5V

–2.85V

2.78V

0.83V

NO. VOLTAGE

IC703

2.4V

2.45V

1.87V

2.5V

2.1V

2.5V

NO. VOLTAGE

IC901

2.5V

4.8V

NO. VOLTAGE

IC875

5.0V

2.5V

5.0V

NO. VOLTAGE

IC876

7.7V

7.6V

NO. VOLTAGE

IC804

2.5V

1.2V

2.5V

1.2V

NO. VOLTAGE

IC651

2.5V

1.0V

2.5V

1.0V

2.5V

4.5V

NO. VOLTAGE

IC351

5.14V

5.09V

5.15V

5.16V

10.33V

NO. VOLTAGE

KIC1

5.16V

10.34V

NO. VOLTAGE

KIC2

VOLTAGE

MD-MS702MK

– 18 –

123456

BATTERY

TERMINAL(+)

C866

L886

R861

IC702

D862

R408

R407

C886

R852

R847

C845 C849

R851

C848

D842

C842

R841

R848

R846

C810 R828 R849

C850

R843

C828

R413

R414

R412

R415

R411

C443

R442

IC441

R443 C442

R444

R204

C203

C441

R441

C207 1

100 26

510 15 20

D201

IC404

Q401

R400

L171

C172

C171

Q101

L601

L602

C602

C601

C202

L202

55606570

10 11

C130

R601

C608

L608

L610

C357

XL201

C212

C211

R222

L609

R207

L204

R431

C431

C401

R203

D431

C843

IC431

C844

R844

L651

C651

R805

D822

R831

C829

C823

R824

C824

R806

C807

R811

C822

R823

R829

R821

R826

C830

C825

R832

R827

R810

R814

R818

D801

R815

IC800

R801

R802

C803

D802

C808

R808

R807

Q803

Q802

IC804

R809

R804

R803

C874 C804

C821

C805

L801

C806 Q352

D351

C351

Q351 Q353

Q354

C354

D352

C353

C609

C610

L600

18 19

35 36

C600

L603

L604

C622

C604

C603

D800

R817

DC IN

J801

C161

R154

IC201

IC202

IC651

IC402

IC841

IC801

IC351

IC821

IC803

IC601

MAIN PWB-A1(TOP)

BATTERY

TERMINAL(-)

Figure 18 WIRING OF P.W.BOARD (1/5)

The numbers 1 to 18 are waveform numbers shown in page 43 (MD-MS702).

MD-MS702MK

– 19 –

78 9 10 11 12

Figure 19 WIRING OF P.W.BOARD (2/5)

CN101

IC401

CN701

10 20 30 33

IC101

R105

C104

C103 C102

R106

C131

R104

R103

R102

R101

L201

C201

C165

R161

C205

R206

R205

C124

C121

C122

C123

D821

C952

SW402

HOLD

C868

C864

C846

L842

L841

C847

R482

R481

C481

D841

C877

C863

C865

C869

C951

C827 L862 L863

IC873

IC875

R872

IC822

Q873

C873

D873

Q872

C875

IC842

D861

L822

C826

L821

R421

R419

R422

R420

C831

R878

C832

D831

R402 1

100

5101520

55 60 65 70

51 75

R909

C911

IC901

R426

CN451

R403

SW401

EJECT

C112

15 20

35 36

4045

C111

C110

C109

C100

R455

R409

C106

C107

R406

R405

L100

R451

R452

R456

R458

R457

R454

R453

C902

R423

R424

R404

R425

C910

C909

C908

C905

C906

C907

R901R902

R905

C903

R906

C913

R907

C912

R903

R904

R908

10 11

20 R361

C361

R922

CN601

R921

L871 C872

Q871

IC871

C871 D871

C880

IC872

R877

R876

D877

R881

R873

IC876

C878

R875

R879

IC874

C881

C879

D875

R880 R882

R819

IC805

R874

Q801 1

L888

L887

C802

TP114 TP116

TP101

TP110

TP103

TP115

TP102 TP105 TP111

TP120

TP201

TP206

TP122

TP108

TP109

TP121

TP106

TP117 TP119

TP409

TP411

TP410

TP403

TP211

TP761

TP763

TP762 TP767 TP770 TP772 TP775

TP764 TP769 TP774 TP779

TP408

TP780

TP777 TP785

TP765

TP773 TP776

TP778

TP781 TP793

TP771

TP768

TP766

TP784 TP790

TP787

TP791

TP792

TP783

TP789

TP412

TP405

TP208

TP209

TP404

TP210 TP407

TP401

TP139

TP203

TP118

TP144

TP100 TP145

TP454

TP453

TP811

TP402

TP461

TP463

TP458

TP451 TP406

TP456

TP462

TP610

TP460

TP457

TP207 TP657

TP661

TP658

TP660

TP601

TP656 TP655

TP654

TP652

TP651

TP413

TP205

TP664

TP663

TP901

TP653

TP807

TP810

TP659

TP481

TP482

TP487

TP486

TP808

TP809

TP803 TP806

TP805

TP484

TP485

TP665

TP666

TP662

TP804

TP464

TP455

TP459

TP452

TP801

TP802

R816

TP483

P22 4-H

FROM LCD

FLEXIBLE PWB

EXT. BATTERY TERMINAL

(220)

MAIN PWB-A1(BOTTOM)

P22 4-F

FROM KEY

FLEXIBLE PWB(231)

P22 6-C

FROM MECHANISM

FLEXIBLE PWB(8)

FROM PICKUP

FLEXIBLE PWB

P22 1-D

FROM AUDIO FLEXIBLE PWB(254)

P21 9-F

CN482

MD-MS702MK

– 20 –

123456

Figure 20 WIRING OF P.W.BOARD (3/5)

R504

C504

R761

C500

C753

C754

C510

C503

R503 C501

C715

C502

R714 C508

L702

Q711

C752

L454

L751

L752

R768

R765

L453

R767

R757

R724

L703

L704

R701

L714

C703

R703

C726

C725

R730

C721

C722

C736

R728

C731

R727 1

C710

C775

C733

C734

L710

R729

C773

C774

L771

C771

C772

R711

1213

10 R712

R719

R720

C505 C506

C701

L500

C759

C760

C758

R756

C507

C509

R501

R717

C702

R702

R715

R716

R713

R754

R500

C713 R502

C491

L491 C714

C711

C767 R753

D494

R751

C755

R492 D492

C768

L457

D491

L458

D493

C751

R766

R762

C761

C762

510

C756

C757

R752

J703

HEADPHONES

J701

LINE

J702

MIC IN

IC701

IC703

IC501

IC771

JACK PWB-A2(TOP)

The numbers 5 to 8 are waveform numbers shown in page 43 (MD-MS702).

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Sharp MD-MS702MK User manual

Brand: Sharp

Model: MD-MS702MK

Category: Minidisc players

Type: User manual

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Sharp MD-MS702MK User manual

Sharp MD-MS702MK User manual

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