Sharp MDMS-721-W, MDMS-722, MDMS-722-C, MDMS-722-W Service manual

SERVICE MANUAL

(Illustration: MD-MS722/MS722C/MS722W)

MD-MS722/C/W/MS721W

No. SX891MDMS722U

MD-MS722 MD-MS722C MD-MS722W MD-MS721W(BL) MD-MS721W(S)

• In the interests of user-safety the set should be restored to its original condition and only parts identical to those specified be used.

(Illustration: MD-MS721W)

CONTENTS

Page

SAFETY PRECAUTION FOR SERVICE MANUAL (MD-MS722W/MS721W ONLY)............................................................ 2

SPECIFICATIONS ................................................................................................................................................................. 3

NAMES OF PARTS ............................................................................................................................................................... 4

OPERATION MANUAL .......................................................................................................................................................... 6

QUICK GUIDE (MD-MS722 ONLY) ....................................................................................................................................... 9

DISASSEMBLY.................................................................................................................................................................... 11

INSTALLING THE TOP CABINET ....................................................................................................................................... 11

REMOVING AND REINSTALLING THE MAIN PARTS....................................................................................................... 12

ADJUSTMENT ...................................................................................................................................................................... 13

BLOCK DIAGRAM ............................................................................................................................................................... 29

SCHEMATIC DIAGRAM/WIRING SIDE OF P.W.BOARD................................................................................................... 30

NOTES ON SCHEMATIC DIAGRAM .................................................................................................................................. 39

WAVEFORMS OF MD CIRCUIT ......................................................................................................................................... 40

TROUBLE SHOOTING ........................................................................................................................................................ 41

FUNCTION TABLE OF IC.................................................................................................................................................... 44

PARTS GUIDE/EXPLODED VIEW PACKING OF THE SET (MD-MS722 ONLY)

SHARP CORPORATION

– 1 –

This document has been published to be used for after sales service only. The contents are subject to change without notice.

MD-MS722/C/W/MS721W

SAFETY PRECAUTION FORSERVICE MANUAL

(MD-MS722W/MS721W ONLY)

Precaution to be taken when replacing and servicing the Laser Pickup.

The AEL (Accessible Emission Level) of Laser Power Output for this model is specified to be lower than Class I Requirements. However, the following precautions must be observed during servicing to protect your eyes against exposure to the laser beam.

(1) When the cabinet has been removed, the power is

turned on without a compact disc, and the Pickup is on a position outer than the lead-in position, the Laser will light for several seconds to detect a disc. Do not look into the Pickup Lens.

(2) The Laser Power Output of the Pickup inside the unit

and replacement service parts have already been adjusted prior to shipping.

(3) No adjustment to the Laser Power should be attempted

when replacing or servicing the Pickup.

(4) Under no circumstances look directly into the Pickup

Lens at any time.

(5) CAUTION - Use of controls or adjustments, or

performance of procedures other than those specified herein may result in hazardous radiation exposure.

CAUTION

This Portable MiniDisc Recorder is classified as a CLASS 1 LASER product. The CLASS 1 LASER PRODUCT label is located on the bottom. Use the portable minidisc recorder only in accordance with the instructions given in this manual and do not attempt to interfere with the interlock switch or make any other adjustment as this may result in exposure to hazardous radiation.

Laser Diode Properties

Material: GaAIAs Wavelength: 785 nm Pulse time:

Read mode; 0.8 mW Continuous Write mode; max. 10 mW 0.5S

CAUTION - INVISIBLE LASER RADIATION WHEN OPEN AND INTERLOCKS DEFEATED AVOID EXPOSURE TO BEAM .

VARNING - OSYNLIG LASERSTRÅLNING NÄR DENNA DEL ÄR ÖPPNAD OCH SPÄRRAR ÄR URKOPPLADE. STRÅLEN ÄR FARLIG.

ADVARSEL - USYNLIG LASERSTRÅLING NÅR DEKSEL ÅPNES OG SIKKERHEDSLÅS BRYTES. UNNGÅ EKSPONERING FOR STRÅLEN.

VARO! AVATTAESSA JA SUOJALUKITUS OHITETTAESSA OLET ALTTIINA NÄKYMÄTÖN LASERSÄTEILYLLE. ÄLÄ KATSO SÄTEESEN.

VARNING - OSYNLIG LASERSTRÅLING NÄR DENNA DEL ÄR ÖPPNAD OCH SPÄRREN ÄR URKOPPLAD. BETRAKTA EJ STRÅLEN.

ADVARSEL - USYNLIG LASERSTRÅLING VED ÅBNING NÅR SIKKERHEDSAFBRYDERE ER UDE AF FUNKTION. UNDGÅ UDSETTELSE FOR STRÅLING.

min. cycle 1.5S Repetition

(Illustration: MD-MS722W)

Precaution to be taken when replacing and servicing the laser pickup. The following precautions must be observed during servicing to protect your eyesagainst exposure to the laser.

Warning of possible eye damage when repairing: If the AC adaptor or batteries are connected when the top houising (disc cover) of the unit is removed, and the PLAY key is pressed, the laser will light up during docus access (2-3 seconds). (Fig. 2-1) During the operation, the laser will lesk from the opening btween the magnetic head and the mechanical chassis (Fig. 2-2). In order to protect your eyes, you most not look at the laser durnd repaor. Before repaoring be sure to disconnect the AC adaptor and remove the batteries.

Magnet head

Optical pick-up

Mechanism Chassis

Disc motor

Disc cover

Magnet Head

Lasar Beam

Main PWB

Optical Pick-Up

Figure 2-1 Figure 2-2

– 2 –

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

SPECIFICATIONS

General

Power source: DC 3.6 V (rechargeable lithium-ion (MS722/MS722C) battery x 1)

Power source: DC 3.6 V (rechargeable lithium-ion (MS722W/MS721W) battery x 1)

Power consumption: 7 W (AC adaptor) (MS722/MS722C) Power consumption: 0.15A (AC adaptor) (MS722W/MS721W) Output power: RMS; 20 mW (10 mW + 10mW)

Charging time: Approx. 3 hours

Battery life:

When using the rechargeable battery (fully charged) included with the unit

Continuous recording:

Approx. 8 hours

Continuous play: Approx. 10 hours

The continuous recording time is for analogue input 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 20 The operating time when using alkaline batteries may be different, depending on the type and manufacturer of the batteries, and on the operating temperature.

DC 5 V (AC adaptor) AC 120V, 60 Hz DC 3.4V: Battery case (commercially available, "AA"

size, alkaline battery x 1)

DC 4.5V: Separately available car adaptor,

AD-CA20X

(for cars with a 12-24V DC

negative earth electrical system)

DC 5 V (AC adaptor) AC 110 - 240V, 50/60 Hz DC 3.4V: Battery case (commercially available, "AA"

size, alkaline battery x 1)

DC 4.5V: Separately available car adaptor,

AD-CA20X

(for cars with a 12-24V DC

negative earth electrical system)

(0.2% T.H.D.) (When using the AC adaptor included

with the unit)

When using one, commerically available, high capacity, "AA" size, alkaline batteries (in the battry case)

Continuous recording:

Approx. 3 hours

Continuous play:

Approx. 6 hours

When using one, commercially available, high capacity, "AA" size batteries with the rechargeable battery (fully charged)

Continuous recording:

Approx. 11 hours Continuous play:

Approx. 16 hours

o

C.

MD-MS722/C/W/MS721W

Output level: (MS722/MS722C)

Output level: (MS722W/ MS721W)

Headphones — 10 mW + 16 ohms

LINE 300 mV — 10 kohms

Headphones — 10 mW + 32 ohms

LINE 300 mV — 10 kohms

Specified

output

(-12dB)

Specified

output

(-12dB)

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

Height: 1-1/16" (26.7 mm) Depth: 3-1/4" (81.5 mm)

Weight: 0.49 lbs. (220 g) with rechargeable

battery

Input socket: Line/optical digital, microphone

(powered by the main unit)

Output socket: Headphones (impedance: 19 ohms)/ (MS722/MS722C) remote control unit Output socket: Earphones (impedance: 32 ohms)/ (MS722W/MS721W) remote control unit

MiniDisc Recorder

Type: Portable MiniDisc recorder Signal readout: Non-contact, 3-beam semi-coductor

Audio channels: Stereo 2 channels/monaural (long- Frequency response: 20 - 20,000 Hz (± 3 dB)

Rotation speed: Approx 400 - 900 rpm Error correction: ACIRC (Advanced Cross Interleave

Coding: ATRAC (Adaptive TRansform

Recording method: Magnetic modulation overwrite Sampling frequency: 44.1 kHz (32 kHz and 48 kHz signals

Wow and flutter: Unmeasurable (less than ±0.001%

Specifications for this model are subject to change without prior notice

laser pick-up play mode) 1 channel

Reed-Solomon Code) Acoustic Coding), 24-bit computed

type method are converted to 44.1 kHz, and then

recorded.) W.peek)

Maximum

output level

10 mW

Maximum

output level

10 mW

Load

impedance

Load

impedance

Input sensitivity:

Recording level

MIC H 0.25 mV 10 k ohms MIC L 2.5 mV 10 k ohms LINE 100 mV 20 k ohms

Reference input level

Input impedance

– 3 –

MD-MS722/C/W/MS721W

NAME OF PARTS

MD-MS722/MS722C/MS722W

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. Headphones Jack (MS722/MS722C)

10. Earphones Socket (MS722W)

11. Display/Volume Shuttle Switch

12. Hold Switch

13. Play/Pause/Fast Reverse/ Fast Forward Shuttle Switch

14. Stop/Power Off/Bass/Play Mode Shuttle Switch

Main unit

1. Monaural Long-Play Mode Indicator

2. Record Indicator

3. Index Indicator

4. Level Meter

5. Repeat Indicator:

6. TOC Indocator

7. Battery Indicator:

8. Random Indicator

9. Track Number Indicator

10. Character/Time Information Indicator

11. Synchro Recording Indicator

12. Disc Mode Indicator

13. Disc Name Indicator

14. Track Name Indicator

15. Remaining Recording Time Indicator

16. Total Track Number Display

10

11

12

11 12

13 14

2

1

REC

6

SYNC

TOTAL

789

13 14

12345 6

1516

2019

1817

21 22

1

RANDOM

3 4

5

7 8

9

10

17. Jog Dial

18. Record/Track Mark Button

19. Volume/Name Select Buttons: –

20. Display/Lowercase Characters Button

21. Character Button

22. Volume/Name Select Buttons: +

23. Play/Pause Button:

24. Fast Reverse/Fast Forward/Recording Level Control/ Cursor Shuttle Switch:

25. Edit/Auto Mark/Time Mark Button

26. Mode/Insert Button

27. Bass/Delete Button

28. Enter/Fast Play/Synchro Button

29. Handstrap Attachment Eye

30. Stop/Power Off Button: /:OFF

31. Eject Lever

32. Optical/Line Input Jack (MS722/MS722C)

32. Optical/Line Input Socket (MS722W)

33. Microphone Input Jack (MS722/MS722C)

33. Microphone Input Socket (MS722W)

34. Hold Switch

35. Battery Case Connection Terminals

36. Headphones Jack (MS722/MS722C)

36. Earphones Socket (MS722W)

37. 5V DC Input Jack (MS722/MS722C)

37. 5V DC Input Socket (MS722W)

38. Rechargeable Lithium-lon Battery Compartment

35

23 24

28

272625 29 30 31 32 33

34

36 37 38

– 4 –

MD-MS721W

Remote control unit

MD-MS722/C/W/MS721W

1

2

3

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. Earphones 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 Foward Buttons:

Main unit

1. Monaural Long-Play Mode Indicator

2. Record Indicator

3. Level Meter

4. Repeat Indicator:

5. TOC Indocator

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

10 11

12 13

6

TOTAL

789

10 11

12

13

14

12345

1415

1817

SYNC

2016

REC

21 22 2319

15

16 17

18

1

RANDOM

4 5

6 7

8 9

16. Mode/Insert Button

17. Record/Track Mark Button

18. Fast Reverse/Recording Level Control/

Cursor Button:

19. Play/Pause Button:

20. Fast Forward/Recording Level Control/

Cursor Button:

21. Display/Lowercase Characters Button

22. Volume/Name Select Buttons: –

23. Volume/Name Select Buttons: +

24. Bass/Delete Button

25. Character Button

26. Enter/Fast Play/Synchro Button

27. Edit/Auto Mark/Time Mark Button

28. Handstrap Attachment Eye

29. Stop/Power Off Button: /:OFF

30. Eject Lever

31. Optical/Line Input Socket

32. Microphone Input Socket

33. Hold Switch

34. Battery Case Connection Terminals

35. Earphones Socket

36. 5V DC Input Socket

37. Rechargeable Lithium-lon Battery Compartment

– 5 –

34

25

30 31 3224

29

28

2726

33

35 36 37

MD-MS722/C/W/MS721W

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 disuse, be sure to

charge it fully.

1

Open the rechargeable battery com-

partment cover.

2

Insert the rechargeable battery.

Insert the side with the arrow first.

3

Close the rechargeable battery com-

partment cover.

4

Plug the AC adaptor into the AC

socket, and then insert the plug on the

AC adaptor lead into the DC IN 5V

socket.

About 4 seconds later, “ ” will flash,

and the battery will begin charging.

Battery charging will be complete in 3.0

hours. When the charging is com-

plete, “ ” will go out.

POWER SOURCE

Notes:

After charging has been completed, the

AC adaptor may be left connected.

(For example, when charging at night)

If the rechargeable battery is in the unit,

it will be charged, even whilst operating

the unit. (Float charge)

Do not force open the rechargeable

battery cover too wide.

When the AC adaptor plug is inserted

and a MiniDisc has already been in-

serted, playback may start automati-

cally.

In this case, press the / :OFF button

twice to turn the power off.

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

adaptor, a battery case, and a separately available car adaptor (AD-CA20X).

OPEN

1

OPEN

2

Mark

DC IN

5V

To the DC

IN 5V

socket

Insert

securely,

all the

way in.

MS722W Except for Australia/

New Zealand/MS721W: AC 110-240V,

50/60 Hz

4

MS722W For Australia/New Zealand:

AC 110-240V, 50/60 Hz

(Illustration: MD-MS722W)

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 battery with a new one.

When the battery has run completely out,

“BATT EMPTY” (main unit) and “Lo BATT”

(remote control unit) will appear. Then, the

power will be disconnected automatically.

Notes:

When using the unit with an alkaline bat-

tery or a rechargeable battery, the battery

indicator will not display correctly the re-

maining capacity for approximately 20

seconds after the power has been turned

on.

When the AC adaptor included with this

unit or a separately available car adaptor

is used, the battery indicator will not be

shown.

The number of bars shown in the battery

indicator may increase or decrease, de-

pending on the operation being per-

formed. This is normal.

When the rechargeable battery and the

alkaline battery are used at the same time,

the rechargeable battery is used first, and

then the alkaline battery.

Since the battery indicator shows the re-

maining amount of the particular battery

being used, the number of bars will in-

crease when the unit switches to the alka-

line battery.

CONVENIENT OPERATION OF THE UNIT

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 THE OPTICAL 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

Analogue recording is

possible.

OPERATION MANUAL

– 6 –

MD-MS722/C/W/MS721W

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

socket.

2. Remove the battery.

3. Leave the unit completely unpowered

for approximately 30 seconds.

4. Plug the AC adaptor back into the AC

socket 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 socket immediately and contact an au-

thorised SHARP service centre.

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 authorised SHARP dealer or service centre.

PROBLEM CAUSE

The unit does not turn

on.

Is the AC adaptor disconnected?

Is the battery exhausted?

Is the unit in the hold 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 earphones.

Is the volume set too low?

Is the remote control unit or the earphones 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 hold mode?

Is the battery exhausted?

Is the remote control unit plug or the earphone 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 whilst recording or editing?

Is the unit in the hold mode?

Is an optical signal being output from the external

equipment?

Read the operation manual for the external equipment.

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 12 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 whilst

cueing and reviewing.

A track number can 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

– 7 –

MD-MS722/C/W/MS721W

( ): Error messages seen on the re-

mote control.

Error messages Meaning Remedy

BATT EMPTY

(Lo BATT)

The battery run down. Charge the rechargeable battery or

replace the alkaline battery (or use

the AC adaptor for power).

BLANK DISC

(BLANK)

Nothing is recorded. Replace the disc with a recorded

disc.

Can't COPY

(Not REC)

No copy can be made because of

the SCMS copyright system.

Record using the analogue cable.

Can't EDIT

A track cannot be edited. Change the stop position of the

track and then try editing it.

Can't REC

(Not 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

(DEFECT)

The disc is scratched. If the sound you hear is not right,

try recording again.

Replace the disc with another

recordable disc.

Din UNLOCK

(UNLOCK)

Poor connection of the digital cable. Connect the digital cable securely.

DISC ERROR

(E-DISC)

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

(HOLD)

The unit is in the hold 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

(SORRY)

Since a track number is currently

being located or written to, the unit

cannot accept your command.

Wait for a while and try the

operation again.

SYSTEM ERR

(E-SYS)

You have come to the conclusion

that the unit is out of order.

To have it repaired, go to the

distributor where you purchased the

unit.

TEMP OVER

(E-TEMP)

The temperature is too high. Turn off the power, and wait for a

while.

TOC ERROR

(E-TOC)

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

(E-UTOC)

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

(?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

– 8 –

PORTABLE MINIDISC RECORDER

Quick Guide/Guía rápida

MD-MS722

Power source /

Alimentación

2

Check the su pplied accessories /

Compruebe los acces orios sumin istrados

1

Handstrap x 1

Correa para la

muñeca x 1

Carrying Bag x 1

Caja para el

transporte x 1

Analog Cable x 1

Cable analógico x 1

Optical Digital Cable

x 1

Cable óptico digital x

1

Battery Case x 1

Caja de la pila x 1

AC Adaptor x 1

Adaptador de CA x 1

Headphones x 1

Auriculares x 1

Remote Control Unit

x 1

Controlador remoto

x 1

Rechargeable

Lithium-Ion Battery x 1

Batería recargable de

litio-ion x 1

Alkaline battery power

Alimentación de la pila alcalina

AC power

Alimentación de CA

Make sure that a fully charged

rechargeable battery is inserted.

Do not use the unit if it only has an

alkaline battery in it.

Asegúrese de que se ha insertado una

batería completamente cargada.

No emplee el aparato si sólo tiene una

pila alcalina instalada.

OPEN

DC IN

5V

• AC 120V,

60Hz

•

120V CA,

60Hz

14

32

RELEASE LOCK

• Back of the MD recorder

•

Parte posterior de la

grabadora de MD

Open.

Abrir.

Press.

Pulsar.

3

12

DC IN

5V

• AC 120V, 60Hz

•

120V CA, 60Hz

Rechargeable battery power

Alimentación de la batería recargable

2

1

Connection /

Conexión

3

Digital recording

Grabación digital

Analog recording

Grabación analógica

Microphone

Micrófono

Stereo microphone

Micrófono estéreo

Recording side

Lado de grabación

OPTICAL/

LINE IN

LR

(RIGHT)

(DERECHO)

• Analog cable included with this unit

•

Cable analógico suministrado con este

(LEFT)

(IZQUIERDO)

• To the line output jacks

on a stereo

•

A los enchufes de

salida de línea de un

equipo estéreo

Playback side

Lado de reproducción

Recording side

Lado de grabación

DIGITAL OUT

OPTICAL OUT

OPTICAL/

LINE IN

• Optical digital cable

(supplied)

•

Cable óptico digital

(suministrado)

• Optical digital cable

(AD-M2DC, available

separately)

•

Cable óptico digital

(AD-M2DC,

disponible por

separado)

Playback side

Lado de reproducción

Recording side

Lado de grabación

MIC IN

PLUG IN

POWER

QUICK GUIDE (MD-MS722 ONLY)

MD-MS722/C/W/MS721W

– 9 –

MD-MS722/C/W/MS721W

After recording:

Después de la grabación:

To remove the MiniDisc:

Para extraer el minidisco:

Turn off the power and move

the EJECT lever in the direction

indicated by the arrow.

Desconecte la alimentación y

mueva la palanca EJECT en el

sentido indicado por la flecha.

To stop recording:

Para detener la grabación:

Press the /:OFF button.

Pulse el botón /:OFF.

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

Pulse el botón /:OFF estando en el modo de parada.

Recording /

Grabación

4

Recording from the microphone (Mic synchro recording)

Grabación de un micrófono (Grabación sincronizada con micrófono)

5

Press the ENTER/SYNC button to select the

synchro recording level. (This level can be

changed, even while recording.)

Pulse el botón ENTER/SYNC para seleccionar el

nivel de la grabación sincronizada. (Este nivel

podrá cambiarse incluso durante la grabación.)

4

Move the shuttle switch up or down to adjust

the recording level.

Mueva el selector de mando de lanzadera hacia

arriba o abajo para ajustar el nivel de grabación.

1

Connect the stereo microphone to

the MIC IN jack.

Conecte el micrófono estéreo al

enchufe MIC IN del aparato principal.

2

Insert a recordable MiniDisc.

Inserte un minidisco grabable.

3

Press the REC button.

Pulse el botón REC.

6

When a noise, such as a person speaking, is

picked up by the microphone, recording will

begin automatically.

Cuando el micrófono capte un ruido, el de una

persona que hable por ejemplo, la grabación

empezará automáticamente.

Recording from CDs or MDs (Synchro recording)

Grabación de discos compactos o minidiscos (Grabación sincronizada)

5

Press the ENTER/SYNC button.

Pulse el botón ENTER/SYNC.

4

While playing sound from the external

equipment connected to this unit, move the

shuttle switch up or down to adjust the

recording level.

Mientras se reproduce el sonido del equipo

externo conectado a este aparato, mueva el

selector de mando de lanzadera hacia arriba o

abajo para ajustar el nivel de grabación.

1

Connect the external equipment.

Conecte el equipo externo.

2

Insert a recordable MiniDisc.

Inserte un minidisco grabable.

3

Press the REC button.

Pulse el botón REC.

6

Begin playback on the source equipment.

Inicie la reproducción en el equipo fuente.

ENTER

SYNC

REC

ENTER

SYNC

REC

To interrupt playback:

Para interrumpir la reproducción:

Press the button during playback.

To resume playback, press the button again.

Pulse el botón

durante la reproducción.

Para reanudar la reproducción, pulse de nuevo el botón

.

To turn off the power:

Para desconectar la alimentación:

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

Pulse el botón /:OFF estando en el modo de parada.

Playback does not start when a MiniDisc is inserted:

La reproducción no empieza cuando se inserta un

minidisco:

Press the button.

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

When the recordable MiniDisc write protection tab is

closed

When the auto-play function has been canceled

Pulse el botón .

En los casos siguientes, la función de reproducción

automática no se activará.

Cuando esté cerrada la lengüeta de protección contra

escritura del minidisco grabable

Cuando haya sido cancelada la función de reproducción

automática

To stop playback:

Para detener la reproducción:

Press the /:OFF button.

Pulse el botón /:OFF.

Sound control /

Control del sonido

6

Adjust the bass level.

Each time the BASS button is pressed, the tone will be

switched as follows:

Ajuste el nivel de los graves.

Cada vez que pulse el botón BASS, el tono cambiará de

la forma siguiente:

Adjust the volume.

From the main unit:

Press the + button to increase the volume and the –

button to decrease the volume.

From the remote control unit:

Move the shuttle switch up once to increase the volume,

and move it down once to decrease the volume.

Ajuste el volumen.

Desde el aparato principal:

Pulse el botón + para aumentar el volumen y el botón –

para reducirlo.

Desde el controlador remoto:

Mueva el selector de mando de lanzadera una vez hacia

arriba para aumentar el volumen, y muévalo hacia abajo

para reducirlo.

Playing a MiniDis c /

Reproducción de un min idisco

5

1

Insert the headphones plug firmly into the

headphones jack on the remote control unit.

Inserte firmemente la clavija de los auriculares

en el enchufe de auriculares del controlador

remoto.

2

Plug the remote control unit into the jack

on the main unit. Push the plug all the way in.

Enchufe el controlador remoto en el enchufe

del aparato principal. Empuje compl etamente

hacia adentro la clavija.

3

The power will be turned on automatically, and

playback 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)

Load a MiniDisc in the direction indicated by

the arrow on the MiniDisc, with the label side

facing up.

Cargue un minidisco en el sentido indicado por

la flecha del minidisco, con el lado de la etiqueta

hacia arriba.

REMOTE

• Volume (0 - 30)

•

Volumen (0 - 30)

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.

– 10 –

MD-MS722/C/W/MS721W

Do not allow rise of upper cabinet.

DISASSEMBLY

Cares before disassembling

When assembling the machine after disassembling or

repair, observe the following requirements so as to ensure safety and performance.

1. Remove the batteries from the machine, and take out the mini-disc.

2. When assembling after repair, be sure to restore the initial location of wires. Since the screws are small, incorrect fixing may result in malfunction.

3. When repairing, pay utmost attention to static electricity of ICs.

STEP

REMOVAL

PROCEDURE

1 Bottom Cabinet 1. Battery Cover ......... (A1) x1 11-1

2. Screw .....................(A2) x6

2 Top Cabinet 1. Screw ..................... (B1) x3 11-1

2. Flexble PWB ..........(B2) x2 11-2

3 Main PWB 1. Screw .................... (C1) x2 11-2

2. Flexble PWB ......... (C2) x2

3. Soldering ............... (C3) x4

4 Mechanism Unit

1. Raise the rear part, and remove in the arrow direction.

(Illustration: MD-MS722)

FIGURE

11-3

(A2)x2 ø1.4x2mm

Bottom Cabinet

(A2)x1 ø1.4x2.5mm

Center Cabinet

Figu re 11-1

Put the fold on the connector, and apply with the felt. Sagging may result in contact with the sheet metal.

Felt

Main PWB

Pull

(A2)x1 ø1.4x2mm

Top Cabinet

Pull

(B1)x2 ø1.4x2mm

(C1)x1 ø1.7x2.5mm

Pull

(C3)x3

(B1)x1 ø1.4x2mm

(A1)x1

(A2)x2 ø1.4x2mm

(B2)x1

(C1)x1 ø1.7x2.5mm

(B2)x1

Pull

ø1.4x2.5mm

Cares when servicing:

Be sure to use the screw with washer (Part code: LX-BZ0822AFFC, Distribution code: 124 970 0187). If a screw of different length is used by mistake, MD ejection may be disabled.

Figure 11-4

INST ALLING THE TOP CABINET

Insert the key flexible PWB at first into the clearance of center cabinet.

(C2)x1* Flexble PWB for optical pickup

(C2)x1

(C3)x1

Top Cabinet

Caution:

Carefully handle the main PWB and flexible PWB. After removing the flexible PWB (*1) for the optical pickup from the connector, do not touch directly the front end of flexible PWB with your hand so as to prevent damage of optical pickup by static electricity.

Figure 11-2

Mechanism Unit

Figure 11-3

Figure 11-6Figure 11-5

– 11 –

MD-MS722/C/W/MS721W

(C4)x2 ø1.4x1.2mm

(C3)x1 Mechanism Flexible PWB Solder joint

Stop Washer

(C1)x1

Drive Gear

(C2)x1

Sled Motor

Shaft

Pickup Unit

REMOVING AND REINSTALLING THE MAIN PARTS

Remove the mechanism according to the disassembling methods 1 to 3. (See Page 11.)

(A2)x3

ø1.4x2.8mm

How to remove the spindle motor (See Fig. 12-1.)

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

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

How to remove the lift motor (See Fig. 12-2.)

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

2. Remove the screw (B2) x 1 pc., and remove the flexible PWB.

3. Remove the screw (B3) x 1 pc., and remove the lift motor.

Note:

Take care so that the motor gear is not damaged. (If the gear is damaged, noise is caused.)

How to remove the sled motor (See Fig. 12-3.)

1. Remove the stop washer (C1) x 1 pc., and remove the drive

gear (C2) x 1 pc.

2. Remove the solder joint (C3) x 1 of flexible PWB.

3. Remove the screws (C4) x 2 pc., and remove the sled

motor.

Note:

Take care so that the motor gear is not damaged.

How to remove the magnetic head (See Fig. 12-4.)

1. Remove the screw (D1) x1 which connects the magnetic

head to the head relay flexible PWB, and remove the soldering joint (D2) x2.

Note:

Mount carefully so as not to damage the magnetic head. (If the gear is damaged, noise is caused.)

(B1)x2 Remove the solder joint

Lift Motor

Spindle Motor

Mechanism Flexible PWB Solder joint (A1)x1

Figure 12-1

(B3)x1

ø1.4x5.5mm

(B2)x1

ø1.4x1.5mm

Figure 12-2

MD Mechanism

How to reinstall the optical pickup unit (See Fig. 12-5.)

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

2. Slowly raise the optical pickup.

(E1)x1 ø1.7x2.5mm

Shaft

Pickup Unit

Figure 12-5

– 12 –

Shaft

Pickup Unit

Figure 12-3

Magnetic Head

Solder joint (D2)x2

(D1)x1 Ø1.4x1.5mm

Figure 12-4

MD-MS722/C/W/MS721W

Test disc

ADJUSTMENT

MD adjustment needs two types of disc, namely recording disc (low reflection disc) and playback-only disc (high reflection disc).

Type

1 High reflection disc MMD-110 (TEAC Test MD) 88GMMD-110 2 Lowreflection disc MMD-212 (TEAC Test MD) 88GMMD-212 3 Low reflection disc Recording minidisc UDSKM0001AFZZ

Test disc Parts No.

Note: Use the low reflection disc on which music has been recorded.

Entering the TEST mode

1. Setting at port (in standby state, disc-free state or power nonconnected state)

(1) Set the port as follows. TEST1 : "Low" TEST0 : "High" (2) Press the PLAY button in the standby state (it is allowed to insert the disc or to connect the power supply). (3) Test Mode STOP [ _ T E S T _ ]

2. Setting by special button operation (in standby state)

(1) Holding down the DISP button and ENTER button, press the PLAY button. (2) Normal mode setting initialization (BASS setting, VOL setting, etc.) (3) Indication of microcomputer version for one second [ 7 0 2 A f X ] (Only Serial No. 811XXXXX)

[ 9 0 8 A f X ] (From Serial No. 812XXXXX)

Destination

Microcomputer version (4) Whole LCD lighting for 2 seconds (5) Test Mode STOP [ _ T E S T _ ] *When the PLAY button is pressed during indication (3) and (4), the process proceeds to (5).

EEPROM version

Leaving the TEST mode

(1) Press the STOP button in the TEST mode stop state or version indicating state or whole LCD lighting state. (2) EEPROM rewrite-enable area updating, adjustment error setting (so as to adjust all the items when the power supply is turned

on in the normal mode)

(3) Change to standby state

Shipping setting method

Holding down simultaneously the VOLUME-DOWN key and PLAY key of the set unit without disc, supply the power from the DC IN plug. After the indication "INIT" -> "BYE OK" disappears, release the power supply of DC IN.

Test Mode

1. AUTO 1 Mode • Perform preliminary automatic adjustment.

2. AUTO 2 Mode

3. MANUAL 1 Mode

4. MANUAL 2 Mode

5. RESULT 1 Mode

6. RESULT 2 Mode

7. TEST-PLAY Mode

• If the combination of mechanism and pickup PWB has been changed, be sure to start from

AUTO1.

• Perform ATT (attenuator) automatic adjustment.

• Perform continuous playback (error rate display, jump test)

• Temperature is displayed. (Updating in real time)

• Seeing the displayed adjustment value, perform preliminary manual adjustment. (Error rate indication, jump test)

• Temperature is displayed. (Updating in real time)

• Seeing the displayed adjustment value perform manfully the preliminary adjustment.

(Error rate indication, jump test)

• Continuous playback is performed

(error rate display, jump test).

• The value adjusted in AUTO1 or MANUAL1 is

indicated.

• (Execution in servo "OFF" state").

• The value adjusted in AUTO 2 or MANUAL 2 is

indicated.

• Adjustment value is changed manually.

(error rate display, jump test).

• Continuous playback from the specified address

is performed.

• 1 line, 10 lines or 400 lines manual jump is performed.

• C1 error rate display (pit section), ADIP error rate display (groove section)

• The temperature correction is performed only when servo start is performed, but the posture correction is not performed during continuous playback.

8. TEST-REC Mode

9. NORMAL Mode

10. DIGITAL INPUT Mode

11. ERROR INFORMATION Mode • Error information is initialized

12. EE-PROM Mode

13. INNER Mode

• Continuous record from the specified address is performed.

• Change of record laser output(servo gain is also changed according to laser output).

• The temperature correction is performed only when servo start is performed, but the posture correction is not performed during continuous recording.

• The mode is changed from the TEST mode to the normal mode without adjustment.

• In the normal mode the internal operation mode, memory capacity, etc. areindicated.

• In the normal mode both temperature correction and posture correction are perfomed.

• Digital input information is displayed.

• Error information is displayed.

• Factors of digital servo are changed manually. (Each servo is turned on individually.)

• Cut-off frequency of BASS1, BASS2 and BASS3 is selected manually.

• Temperature detection terminal voltage is measured, and the reference value is set.

• Defaults are selected and set.

• Setting of EEPROM protect area is updated. (In case of protect releasing)

• Determine the position where the INNER switch is turned on. (only high reflection disc).

• The temperature correction is performed only when servo start is performed, but the posture correction is not performed.

– 13 –

MD-MS722/C/W/MS721W

Operation in each TEST mode

1. AUTO1 Mode

• When the STOP button is pressed while the AUTO1 menu appears or during automatic adjustment, the mode changes to the TEST mode stop state. At this time the adjustment value is not output.

• Be sure to adjust, using the specified disc MMD-212.

At this time release the EEPROM (IC402) protection. (Refer to EEPROM write procedure.)

• Adjustment NG; Adjustment item out of range, focus ON failure, and adjustment error

• When the PLAY button is pressed while ADJ. OK is displayed, AUTO2 is executed.

2. AUTO2 Mode

• When the STOP button is pressed while the AUTO2 menu appears or during automatic adjustment, the mode changes to the TEST mode stop state. At this time the adjustment value is not output.

• Adjustment NG; Adjustment item out of range, and adjustment error.

3. MANUAL1 Mode

• Adjustment item to be made in AUTO1 mode is performed manually.

• When the VOL UP button is pressed during adjustment, the setting increases, and the new setting is output.

• If the VOL DOWN button is pressed during adjustment, the setting decreases and the new setting is output.

• If the VOLUP/DOWN button is held down, the setting changes continuously with 100 ms cycle.

• If the setting is within the allowable range, the RANDOM display lights.

• When the STOP button is pressed during MANUAL1 MENU or measurement or adjustment, the state is changed to the TEST mode stop state.

4. MANUAL2 Mode

• Adjustment item to be made in AUTO2 mode is performed manually.

• When the VOL UP button is pressed during adjustment, the setting increases, and the new setting is output.

• If the VOL DOWN button is pressed during adjustment, the setting decreases and the new setting is output.

• If the VOLUP/DOWN button is held down, the setting changes continuously with 100 ms cycle.

• If the setting is within the allowable range, the RANDOM display lights.

• When the STOP button is pressed during MANUAL2 MENU or measurement or adjustment, the state is changed to the TEST mode stop state.

• When the PLAY button is pressed in B-ATT set state, the mode is changed to the continuous playback mode.

• As for operation during continuous playback refer to "TEST-PLAY mode explanation".

5. RESULT1 Mode

• The measurement value and set value of adjustment items for AUTO1 and MANUAL 1 are displayed.

• If the VOL UP button is pressed during setting indication, the setting increases. If the VOL DOWN button is pressed, the setting reduces.

And then the new setting is stored in the RAM.

• When the VOL UP/DOWN button is held down, the setting changes continuously, one cycle being 100 ms.

• If the STOP button is pressed during RESULT1 menu or measurement value indication or set value indication, the state is changed to the TEST mode STOOP state.

6. RESULT2 Mode

• The measurement value and set value of adjustment items for AUTO2 and MANUAL 2 are displayed.

• If the VOL UP button is pressed during setting indication, the setting increases. If the VOL DOWN button is pressed, the setting reduces.

And then the new setting is stored in the RAM.

• When the VOL UP/DOWN button is held down, the setting changes continuously, one cycle being 100 ms.

• If the STOP button is pressed during RESULT2 menu or measurement value indication or set value indication, the state is changed to the TEST mode STOOP state.

7. TEST-PLAY Mode

•When the STOP button is pressed while the TEST-PLAY menu appears, or in TEST-PLAY or continuous playback mode, the mode changes to the TEST mode stop state.

• When the PLAY button is pressed while the TEST-PLAY menu appears,continuous playback is initiated from the current pickup position.

• Whenever the DISP button is pressed in the TEST-PLAY mode, the address changes as follows.

• Whenever the BASS key is pressed in the TEST-PLAY mode, the digit which is changed by the SKIP UP/DOWN button changes as follows.

• When the SKIP UP button is pressed in the TEST-PLAY mode, the digit of address specified by the BASS button is set to +1h. (0 to F)

• When the SKIP DOWN button is pressed in the TEST-PLAY mode, the digit of address specified by the BASS button is set to -1h. (0 to F) * When the SKIP UP/DOWN button is held down, the setting changes continuously, one cycle being 100 ms.

• When the BASS button is pressed in the continuous playback mode, the number of jump lines changes as follows.

* After the number of jump lines is indicated for one second, the address indication is restored. [ T R _ ]

• When the SKIP UP button is pressed in the continuous playback mode, the specified number of lines is jumped in the FWD direction.

• When the SKIP DOWN button is pressed in the continuous playback mode, the specified number of lines is jumped in the REV direction. * When the SKIP UP/DOWN button is held down, jump is repeated every approx. 100 ms.

0050 — 03C0 — 0700 — 08A0 — 0050 —

005

0 — 0050 — 0050 — 0050 — 0050 —

1 — 10 — 384 — 1

– 14 –

MD-MS722/C/W/MS721W

•Whenever the DISP button is pressed in the continuous playback mode, the indication changes as follows. * Pit section

Continuous playback (SUBQ address indication) [ S Q ]

Continuous playback (C1 error indication) [ C E ]

Continuous playback (SUBQ address indication) [ S Q ]

* Groove section

Continuous playback (ADIP address indication) [ A P ]

Continuous playback (C1 error indication) [ C E ]

Continuous playback (ADIP error indication) [ A E ]

Continuous playback (ADIP address indication) [ A P ]

8. TEST-REC Mode

• When the STOP button is pressed while the TEST-REC menu appears, or in the TEST-REC mode or continuous record mode, the mode changes to the TEST mode stop state.

• When the PLAY button is pressed while the TEST-REC menu appears, the continuous record is initiated from the current pickup position.

• Whenever the DISP button is pressed in the TEST-REC mode, the address changes as follows.

0050 — 03C0 — 0700 — 08A0 — 0050 —

• Whenever the BASS button is pressed in the TEST-REC mode, the digit which is changed by the SKIP UP/DOWN button changes as follows.

0050 — 0050 — 0050 — 0050 — 0050 —

• When the SKIP UP button s pressed in the TEST-REC mode, the digit of address specified by the BASS button is set to +1h.(0 to F)

• When the SKIP DOWN button is pressed in the TEST-REC mode, the digit of address specified by the BASS button is set to -1h. (0 to F)

* When the SKIP UP/DOWN button is held down, the setting changes continuously, one cycle being 100 ms.

• When the VOL UP/DOWN button is pressed in the TEST-REC mode or continuous record mode, the laser record power changes. (Servo gain changes also according to record power.) * After the laser record power is indicated for one second, the address indication is restored.

• : Address

• : Laser power cord

• Operation is disabled if the premastered disc or disc is in miserase-protected state.

|

[ R P W ]

9. NORMAL Mode

• When the STOP button is pressed while the NORMAl menu appears, the mode changes to the TEST mode stop state.

• Indication during operation Indication of memory capacity on main unit LCD [ ] + Level meter

: Internal mode : Address (Cluster section)

• Selection of sound volume, BASS, etc. is possible (without indication)

• Recording is also possible.

: Address (Sector section)

10. Digital input display Mode (Din Mon)

• When the STOP button is pressed while the digital input indication menu appears or during digital input information indication, the mode changes to the TEST mode stop state.

• In case of analog input or digital input unlocking the indication data is _.

11. Error data display Mode

• Reversing when SKIP DOWN button is pressed

• When the STOP button is pressed while the error data indication menu appears or during error data indication, the mode changes to the TEST mode stop state.

• Error data 0 is the latest error.

• Error which occurred in the TEST mode is also stored in the memory.

• When the DISP button is pressed while the error data indication menu appears, the error data is initialized. [ C L E A R _ ]

•

: Error Code

Explanation of error history code

12h : RF side FG, TG, and TCRS adjustment termination failure 13h : Adjustment servo retraction excessive retrial 16h : C. IN detection time-over 17h : A, B, E, F, and TCRSO offset measurement value out of

tolerable range 21h : Focus retraction completion allowable time-over 23h : Track search completion allowable time-over 24h : Disc linear speed measurement failure 32h : P-TOC read failure 42h : U-TOC read failure 44h : U-TOC write data write disabled/read check error

52h : SD write data write disabled 71h : Pickup position initialization time-over 72h : EEPROM data read check sum error 73h : Record head drive disabled (by EJECT lever) 82h : Power overvoltage detection 91h : Ambient temperature is higher that the allowable tempera-

ture.

– 15 –

MD-MS722/C/W/MS721W

13. INNER Mode

• when the STOP button is pressed on the INNER menu (SQ______ ), the state is changed to the TEST mode STOP state.

• : Address

EEPROM (IC402) writing procedure

1. Procedure to replace EE-PROM and write initial value of microcomputer in EEPROM

(1) Replace EEPROM. (2) Deprive EEPROM of protection (connect the pins 8 and 6 of IC402). (3) Refer to the latest EEPROM data list. (4) Press the Display/Lower-case Character button, Enter/Synchro button and Play/Pause button to start the test mode. (5) Version display

[ V e r . ]

Distination EEPROM version (C ~ Z)

Microcomputer ROM version (6) The whole LCD lights. (7) Test mode stop state

[ T E S T ]

(8) Press the "BASS" button, and press twice the "SKIP DOWN" button.

[ E E P R O M ]

(9) Perform the operation to display "EEPROM SETTING MODE CHART", compare the EEPROM DATA LIST with the display,

and set according to the EEPROM DATA LIST with the VOL UP or VOL DOWN key.

(10)

Set the temperature reference. (Refer to the Temperature Reference Setting Method.)

(11)

Set according to the EEPROM DATA LIST.

(12)

Press the Stop button.

[ T E S T ]

(13)

Press the Stop button.

(14)

After data is written in EEPROM, turn off power .

(15)

Restore protection of EEPROM (Disconnect connection made in Step (2) above).

2. Temperature reference setting method

[1] Measurement, calculation and setting procedure

(1) Set the TEST mode.

• Set TEST 1, 0 = '01', and turn on power (or set PLAY ON in standby state). (2) Start the EEPROM mode 'Temp' menu.

• Key operation in order of BASS, SKIP-DOWN x 2 times, PLAY, PLAY in the test mode STOP state.

• 'TM$$%%' is displayed. ($$= Temperature code, %% = Temperature reference) (3) Once press SKIP-UP, and determine the displayed microcomputer TEMP input AD value.

• 'TPin##' is displayed. (## = TEMP input AD value) (4) At the ambient temperature, determine the temperature corrected value from the temperature measurement value

correction table.

(5) Determine the temperature reference, using the following formula.

• Temperature reference = Microcomputer TEMP input AD value + Temperature corrected value

• When data is written into EEPROM, the value shown adove is recorded at the specified address.

[2] Temperature measurement value correction table

Ambient temperature Temperature correction

+ 9oC ~ +11oC - 05h + 10.0oC +12oC ~ +14oC - 04h + 12.7oC +15oC ~ +16oC - 03h + 15.4oC +17oC ~ +19oC - 02h + 18.2oC +20oC ~ +22oC - 01h + 20.9oC +23oC ~ +24oC ± 00h + 23.6oC +25oC ~ +27oC + 01h + 26.3oC +28oC ~ +30oC + 02h + 29.0oC +31oC ~ +33oC + 03h + 31.8oC

[3] Power IC VREF feed control output

• After automatic adjustment the temperature code is read. If it is within the following range, OK.

Ambient temperature Temperature correction

- 9oC ~ +10oC 08h + 0.5oC

+ 3oC ~ +21oC 07h + 12.5oC +15oC ~ +33oC 06h + 23.6oC +26oC ~ +43oC 05h + 35.0oC

Center temperature

– 16 –

EEPROM DATA LIST (EEPROM version f)

TEMP setting

Item display Set values

T M _ _ Calculate values

Fucus setting

Item display Set values

F G _ _ 6 3 H F F 1 _ 7 0 H F F 2 _ E 8 H F Z H _ E D H F L n _ 0 9 H D J G _ 1 4 H F L V _ 2 0 H W T f _ 2 0 H F S S _ A A H

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 4 H T K o _ 2 B H T K t _ 1 2 H T D o _ 6 7 H T D t _ 3 4 H S C o _ 0 0 H S C t _ 4 0 H S C m _ 5 3 H C L p _ 1 8 H C L r _ 2 8 H J P I _ 0 0 H K 1 0 _ 6 5 H

Spindle setting

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 K _ 8 B H

BASS setting

Item display Set values

B S 1 _ 0 0 H B S 2 _ 2 D H B S 3 _ 4 B H

MD-MS722/C/W/MS721W

Sled setting

Item display Set values

S L G _ 6 D H S L 2 _ 2 0 H S L M _ 4 F H S L V _ 3 6 H S K k _ 4 3 H S K t _ 5 4 H S K m _ 4 D H W T m _ 2 4 H M V 1 _ 4 A H M V 2 _ A A H S R V _ 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 _ E 0 H

EQ. 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

Control setting

Item display Set values

C T 0 _ 0 5 H C T 1 _ 9 5 H C T 2 _ 4 0 H C T 3 _ 3 0 H R C 0 _ C 0 H R C 1 _ F E H S Y C _ A 6 H P W C _ 1 2 H P W L _ 6 6 H D R 1 _ 4 9 H D R 2 _ 4 9 H I N 1 _ D 4 H I N 2 _ 7 1 H I N H _ 6 4 H D R H _ 7 4 H P L E _ 9 6 H R C E _ 5 4 H E L T _ 7 2 H S L T _ 7 3 H S P M _ 0 0 H M S L _ 0 0 H U S 0 _ 0 0 H U S 1 _ 0 0 H U S 2 _ 0 0 H

– 17 –

MD-MS722/C/W/MS721W

: Test Mode STOP

: Pre-autoadjustment menu

: ATT autoadjustment menu

: Continuous record menu

: EEPROM setting menu

: INNER switch position measurement menu

BASS

T E S T

Slide external

periphery move

Slide internal

periphery move

Tset Mode Menu

Test Mode Change Chart

A U T O 1

A U T O 2

SKIP UP SKIP DOWN

SKIP DOWN

SKIP UP SKIP DOWN

T R E C

SKIP UP SKIP DOWN

: Continuous playback menu

T P L A Y

SKIP UP SKIP DOWN

: Digital input signal monitor menu

D i n M o n

SKIP UP SKIP DOWN

E E P R O M

SKIP UP SKIP DOWN

I N N E R

SKIP UP

SKIP DOWN

SKIP UP

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

* When the [PLAY] key operation is performed in the specific menu, the operation of this

menu is executed.

: Preadjustment value check menu

R S L T 1

: ATT adjustment value check menu

R S L T 2

: Pre-manual adjustment menu

M A N U 1

: ATT manual adjustment menu

M A N U 2

: Error history display menu

E D A T A

: Test mode normal playback menu

N O R M A L

: Preautomatic Adjustment menu

: Preadjustment error (adjustment value output)

: During preadjustment adjustment

Adjustment error

Normal end

: Preadjustment normal end (adjustment value output)

: During ATT automatic adjustment

PLAY

A U T O 1

Preautomatic Adjustment

A D J . O K

A D J . N G

A T 2

A T 1

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

* " " represent the adjustment number as follows.

0 0 : Innermost periphery move

0 2 : ABEF offset tentative measurement

0 4 : RF side focus gain coarse adjustment

0 5 : Focus ATT tentative setting

0 6 : RF side bit section tracking gain adjustment

0 7 : COUT level setting for pit section adjustment

0 8 : External periphery move

0 9 : RF side groove section tracking gain adjustment

1 0 : COUT level setting for groove section adjustment

1 1 : RF side TCRS gain adjustment

1 2 : Tracking ATT initial setting

1 3 : RF side focus gain minor adjustment

1 4 : Focus ATT initial setting

1 5 : S gain "High" ABEF offset measurement

1 6 : TCRS offset measurement

1 7 : S gain "Low" ABEF offset measurement

– 18 –

MD-MS722/C/W/MS721W

: ATT Autoadjustment menu

: ATT adjustment error (adjustment value output)

: During ATT autoadjustment

Adjustment error

Normal end

: ATT adjustment normal end (adjustment value output)

: Continuous playback (high reflection)

: Continuous playback (low reflection)

PLAY

A U T O 2

ATT Auto Adjustment

A D J . O K

A D J . N G

S Q # # # #

A P # # # #

A T 2

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

* " " represent the adjustment number as follows.

0 0 : Innermost periphery move

0 3 : Pit section tracking ATT setting

0 4 : Pit section focus ATT setting

0 6 : External periphery move (low reflection only)

0 7 : TCRS ATT setting (low reflection only)

0 8 : Groove section tracking ATT setting (low reflection only)

0 9 : Groove section focus ATT setting (low reflection only)

: Pre-Manual Adjustment menu

: Temperature code display

$ $ : Temperature code

: A signal offset (AINO) tentative measurement

: Measurement value

: B signal offset (BINO) tentative measurement

: Measurement value

: E signal offset (EINO) tentative measurement

: Measurement value

: F signal offset (FINO) tentative measurement

: Measurement value

: Laser On (Play Power)

: RF side focus gain coarse adjustment

: Gain setting

: A-ATT (focus) tentative setting

: ATT setting

: B-ATT (focus) tentative setting

: ATT setting

: RF side pit section tracking gain adjustment

: Gain setting

: Pit section adjustment COUT level setting

: COUT level setting

RF side groove section tracking gain adjustment

: Gain setting

: Groove section adjustment COUT level setting

: COUT level setting

: RF side TCRS gain adjustment

: Gain setting

: E-ATT (tracking) initial setting

: ATT setting

: F-ATT (tracking) initial setting

: ATT setting

PLAY

M A N U 1

Pre-Manual Adjustment

T M P $ $

A h

SKIP UP SKIP DOWN

B h

SKIP UP SKIP DOWN

E h

SKIP UP SKIP DOWN

F h

SKIP UP SKIP DOWN

L O N P

SKIP UP SKIP DOWN

R F g

SKIP UP SKIP DOWN

S a

SKIP UP SKIP DOWN

S b

SKIP UP SKIP DOWN

P T G

SKIP UP SKIP DOWN

P C H

SKIP UP SKIP DOWN

G T G

SKIP UP SKIP DOWN

G C H

SKIP UP SKIP DOWN

R C G

SKIP UP SKIP DOWN

S E

SKIP UP SKIP DOWN

S F

SKIP UP SKIP DOWN

Continued to

the next page

SKIP UP SKIP DOWN

– 19 –

MD-MS722/C/W/MS721W

: RF side focus gain minor adjustment

: Gain setting

: A-ATT (focus) initial setting

: ATT setting

: B-ATT (focus) initial setting

: ATT setting

: S gain "High" A signal offset (AINO) measurement

: Measurement value

: S gain "High" B signal offset (BINO) measurement

: Measurement value

: S gain "High" E signal offset (EINO) measurement

: Measurement value

: S gain "High" F signal offset (FINO) measurement

: Measurement value

TCRS signal offset (TCRSO) measurement

: ATT setting

: S gain "Low" A signal offset (AINO) measurement

: Measurement value

: S gain "Low" B signal offset (BINO) measurement

: Measurement value

: S gain "Low" E signal offset (EINO) measurement

: Measurement value

: S gain "Low" F signal offset (FINO) measurement

: Measurement value

Continued from the

preceding page

R F G

SKIP UP SKIP DOWN

S A

SKIP UP SKIP DOWN

S B

SKIP UP SKIP DOWN

A H

SKIP UP SKIP DOWN

B H

SKIP UP SKIP DOWN

E H

SKIP UP SKIP DOWN

F H

SKIP UP SKIP DOWN

T H

SKIP UP SKIP DOWN

A L

SKIP UP SKIP DOWN

B L

SKIP UP SKIP DOWN

E L

SKIP UP SKIP DOWN

F L

SKIP UP SKIP DOWN

: Temperature code displayATT manual adjustment menu

: Temperature code display

$ $ : Temperature code

: Laser ON (Play Power)

: Pit section E-ATT (tracking) setting

: ATT setting

: Pit section E-ATT (tracking) setting

: ATT setting

: High reflection: A-ATT (focus) setting

: Low reflection: A-ATT (focus) setting

: ATT setting

: TCRS ATT setting

: ATT setting

:Groove section E-ATT (tracking) setting

: ATT setting

:Groove section F-ATT (tracking) setting

: ATT setting

: Low reflection: A-ATT (focus) setting

: ATT setting

: Low reflection: B-ATT (focus) setting

: ATT setting

PLAY

M A N U 2

ATT Manual Adjustment

T M P $ $

L O N P

SKIP UP SKIP DOWN

P E

SKIP UP SKIP DOWN

P F

SKIP UP SKIP DOWN

H A

L a

SKIP UP SKIP DOWN

: High reflection: B-ATT (focus) setting

: Low reflection: B-ATT (focus) setting

: ATT setting

H B

L b

SKIP UP SKIP DOWN

G C

SKIP UP SKIP DOWN

G E

SKIP UP SKIP DOWN

G F

SKIP UP SKIP DOWN

L A

SKIP UP SKIP DOWN

L B

SKIP UP SKIP DOWN

– 20 –

MD-MS722/C/W/MS721W

: Pre-Adjustment Value Check menu

: S gain "High" A signal offset measurement value (setting)

: S gain "High" B signal offset measurement value (setting)

: S gain "High" E signal offset measurement value (setting)

: S gain "High" F signal offset measurement value (setting)

: S gain "Low" A signal offset measurement value (setting)

: S gain "Low" B signal offset measurement value (setting)

: S gain "Low" E signal offset measurement value (setting)

: S gain "Low" F signal offset measurement value (setting)

: TCRS signal offset measurement value

: RF side pit section tracking gain setting

: RF side groove section tracking gain setting

: RF side TCR gain setting

: RF side focus gain setting

: Pit section adjustment COUT level setting

: Groove section adjustment COUT level setting

: A-ATT (focus) initial setting

PLAY

R S L T 1

Pre-Adjustment Value Check

A H

B H

SKIP UP SKIP DOWN

E H

SKIP UP SKIP DOWN

F H

SKIP UP SKIP DOWN

A L

SKIP UP SKIP DOWN

B L

SKIP UP SKIP DOWN

E L

SKIP UP SKIP DOWN

F L

SKIP UP SKIP DOWN

T H

SKIP UP SKIP DOWN

P T G

SKIP UP SKIP DOWN

G T G

SKIP UP SKIP DOWN

R C G

SKIP UP SKIP DOWN

R F G

SKIP UP SKIP DOWN

P C H

SKIP UP SKIP DOWN

G C H

SKIP UP SKIP DOWN

S A

SKIP UP SKIP DOWN

Continued to

the next page

SKIP UP SKIP DOWN

: B-ATT (focus) initial setting

: E-ATT (tracking) initial setting

: F-ATT (tracking) initial setting

Continued from

the preceding page

S B

SKIP UP SKIP DOWN

S E

SKIP UP SKIP DOWN

S F

SKIP UP SKIP DOWN

: ATT Setting Check

: Pit section E-ATT (tracking) setting

: Pit section F-ATT (tracking) setting

: Groove section E-ATT (tracking) setting

: Groove section F-ATT (tracking) setting

: High-reflection A-ATT (focus) setting

: High-reflection B-ATT (focus) setting

: Low-reflection A-ATT (focus) setting

: Low-reflection B-ATT (focus) setting

: TCRS-ATT setting

PLAY

R S L T 2

ATT Setting Check

P E

P F

SKIP UP SKIP DOWN

G E

SKIP UP SKIP DOWN

G F

SKIP UP SKIP DOWN

H A

SKIP UP SKIP DOWN

H B

SKIP UP SKIP DOWN

L A

SKIP UP SKIP DOWN

L B

SKIP UP SKIP DOWN

G C

SKIP UP SKIP DOWN

– 21 –

MD-MS722/C/W/MS721W

: Continuous playback menu

: Continuous playback (pit section)

: Continuous playback (groove section)

# # # # : Address

: Continuous playback (pit section)

: Continuous playback (groove section)

# # # # : Address

PLAY

T P L A Y

Continuous Playback

S Q # # # #

A P # # # #

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

* In the start address set state the start address changes as follows when the [DISP] key is pressed.

0 0 5 0

H

(initial value) 0 3 C 0

H

0 7 0 0

H

0 8 A 0

H

A d 0 0 5 0

A d 0 3 C 0

DISP

A d 0 7 9 0

DISP

A d 0 8 A 0

* In the start address setting state the start address change digit changes when the [BASS] key is pressed.

1st digit (initial value) 2nd digit 3rd digit

A d 0 0 5 0

BASS

A d 0 0 5 0

BASS

* In the continuous playback state the number of jump lines changes as follows shown

the [BASS] key is pressed.

1 (initial value) 10 384

1 T R

1 0 T R

BASS

3 8 4 T R

BASS

• Continuous playback from current pickup position

: Continuous playback menu

: Start address setting

DISP

T P L A Y

A d 0 0 5 0

PLAY

S Q # # # #

A P # # # #

• Continuous playback from any address

* In the start address set state the value of selection digit changes in the range of "0h to Fh"

when the [SKIP UP/DOWN] key is pressed

* When the [SKIP UP] key is pressed in the continued playback mode, jump of specified

number of lines occurs in the external periphery direction.

If the key is held down jump occurs continuously (100 ms cycle).

* When the [SKIP DOWN]key is pressed in the continuous playback mode, jump of

specified number of lines occurs in the internal periphery direction.

If the key is held down, jump occurs continuously (100 ms cycle).

: Continuous record menu

PLAY

T R E C

Continuous Rrecord

A P # # # #

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

* In the start address set state the start address changes as follows when the [DISP] key is pressed.

• Continuous record from the current pickup position

: Continuous record menu

: Start address setting

: Continuous record

# # # #: Address

: Continuous record

# # # #: Address

PLAY

T R E C

A d 0 0 5 0

PLAY

A P # # # #

• Continuous record playback from any address

A d 0 0 5 0

0 0 5 0

H

(initial value) 0 3 C 0

H

0 7 0 0

H

0 8 A 0

H

A d 0 3 c 0

DISP

A d 0 7 0 0

DISP DISP

DISP

A d 0 8 A 0

* In the start address setting state the start address change digit changes when the [BASS] key is pressed.

* In the start address set state the value of selection digit changes in the range of 0h to Fh when

the [SKIP UP/DOWN] key is pressed.

* In the continuous record state and start address set state the record laser power changes in the

range of "0h to Fh" when the [VOL UP/DOWN] key is pressed.

A d 0 0 5 0

1st digit (initial value) 2nd digit 3rd digit

A d 0 0 5 0

BASS

A d 0 0 5 0

BASS

– 22 –

MD-MS722/C/W/MS721W

: INNER switch position measurement menu

: Continuous playback (pit section)

# # # # : Address

PLAY

I N N E R

Inner Switch Position Measurement

S Q # # # #

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

: TEST mode normal playback menu

: Continuous playback

@@@@@: Mode and address display

PLAY

N O R M A L

Test Mode Normal Playback

@ @ @ @ @

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

: Digital input single monitor menu

: FS code, C bit data display

: Address

: Control code

: Category code

PLAY

D i n M o n

Digital Input Signal Monitor

C

: U bit 1 data display

: TNO

: INDEX

SKIP UP

U 1

SKIP UP

SKIP DOWN

: U bit 2 data display

: TIME (min.)

: TIME (sec.)

U 2

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

: Error history display menu

: Error history 0 display

§ § : Error code

: Error history 1 display

§ § : Error code

: Error history 2 display

§ § : Error code

: Error history 3 display

§ § : Error code

: Error history 4 display

§ § : Error code

: Error history 5 display

§ § : Error code

: Error history 6 display

§ § : Error code

: Error history 7 display

§ § : Error code

: Error history 8 display

§ § : Error code

: Error history 9 display

§ § : Error code

PLAY

E D A T A

Error History Display

E 0 § §

E 1 § §

: Error history display menu

: Error history clear

PLAY

E D A T A

C L E A R

SKIP UP SKIP DOWN

E 2 § §

SKIP UP SKIP DOWN

E 3 § §

SKIP UP SKIP DOWN

E 4 § §

SKIP UP SKIP DOWN

E 5 § §

SKIP UP SKIP DOWN

E 6 § §

SKIP UP SKIP DOWN

E 7 § §

SKIP UP SKIP DOWN

E 8 § §

SKIP UP SKIP DOWN

E 9 § §

SKIP UP SKIP DOWN

• Error history clear

• Error history display

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

– 23 –

MD-MS722/C/W/MS721W

: EEPROM setting menu

: Focus setting menu

: Spin setting menu

: Tracking setting menu

: Sled setting menu

: BASS setting menu

: TEMP setting menu

: Adjustment setting menu

: Digital EQ setting menu

: Control setting menu

PLAY

E E P R O M

EEPROM Setting

F o c u s

S p i n

SKIP UP SKIP DOWN

T r a c k

SKIP UP SKIP DOWN

S l e d

SKIP UP SKIP DOWN

B a s s

SKIP UP SKIP DOWN

T e m p

SKIP UP SKIP DOWN

A D J S E T

SKIP UP SKIP DOWN

D E Q S E T

SKIP UP SKIP DOWN

C T R L

SKIP UP SKIP DOWN

SKIP UP

SKIP DOWN

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

* When the [PLAY] key operation is performed in the specific state, the specific setting menu is set.

: BASS setting menu

PLAY

B a s s

BASS Setting

B S 1

B S 2

SKIP UP SKIP DOWN

B S 3

SKIP UP SKIP DOWN

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

* When the [DISP] key operation is performed in the specific state, the menu changes to

"TEMP SETTING menu".

* In the specific state the setting changes in the range of "00h to FFh" when the

[VOL UP/DOWN] key is pressed.

(The upper limit varies depending on the items)

: Focus setting menu

PLAY

F o c u s

Focus Setting

F G

F F 1

SKIP UP SKIP DOWN

F F 2

SKIP UP SKIP DOWN

F Z H

SKIP UP SKIP DOWN

F L n

SKIP UP SKIP DOWN

D J G

SKIP UP SKIP DOWN

F L V

W T f

SKIP UP SKIP DOWN

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

* When the [DISP] key operation is performed in the specific state, the menu changes to "TEMP SETTING menu".

* In specific state the setting changed in the range of "00h to FFh" when the [VOL UP/DOWN] key is pressed.

(The upper limit varies depending on the items)

F F S

SKIP UP SKIP DOWN

– 24 –

MD-MS722/C/W/MS721W

: Tracking setting menu

PLAY

T r a c k

Tracking Setting

T G

T F 1

SKIP UP SKIP DOWN

T F 2

SKIP UP SKIP DOWN

T F S

SKIP UP SKIP DOWN

T B o

SKIP UP SKIP DOWN

T B t

SKIP UP SKIP DOWN

T K o

SKIP UP SKIP DOWN

T K t

SKIP UP SKIP DOWN

T D o

SKIP UP SKIP DOWN

T D t

SKIP UP SKIP DOWN

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

* When the [DISP] key operation is performed in the specific state, the menu changes to

"TEMP SETTING menu".

* In the specific state the setting changes in the range of "00h to FFh" when the [VOL UP/DOWN]

key is pressed. (The upper limit varies depending on the items)

S C o

SKIP UP SKIP DOWN

S C t

SKIP UP SKIP DOWN

S C m

SKIP UP SKIP DOWN

C L p

SKIP UP SKIP DOWN

C L v

SKIP UP SKIP DOWN

J P i

SKIP UP SKIP DOWN

K 1 0

SKIP UP SKIP DOWN

: Spin setting menu

PLAY

S p i n

Spin Setting

S P G

S P i

SKIP UP SKIP DOWN

S P m

SKIP UP SKIP DOWN

S P o

SKIP UP SKIP DOWN

S P 1

SKIP UP SKIP DOWN

S P 2

SKIP UP SKIP DOWN

S P 3

SKIP UP SKIP DOWN

S P 4

SKIP UP SKIP DOWN

S P 5

SKIP UP SKIP DOWN

S P D

SKIP UP SKIP DOWN

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

* When the [DISP] key operation is performed in the specific state, the menu changes to

"TEMP SETTING menu".

* In specific state the setting changed in the range of "00h to FFh" when the

[VOL UP/DOWN] key is pressed.

(The upper limit varies depending on the items)

S P K

SKIP UP SKIP DOWN

– 25 –

MD-MS722/C/W/MS721W

: Slide setting menu

PLAY

S l e d

Slide Setting

S L G

S L 2

SKIP UP SKIP DOWN

S L M

SKIP UP SKIP DOWN

S L V

SKIP UP SKIP DOWN

S K k

SKIP UP SKIP DOWN

S K t

SKIP UP SKIP DOWN

S K m

SKIP UP SKIP DOWN

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

* When the [DISP] key operation is performed in the specific state, the menu changes to

"TEMP SETTING menu".

* In the specific state the setting changes in the range of "00h to FFh" when the

[VOL UP/DOWN] key is pressed.

(The upper limit varies depending on the items)

W T m

SKIP UP SKIP DOWN

M V 1

SKIP UP SKIP DOWN

M V 2

SKIP UP SKIP DOWN

S R V

SKIP UP SKIP DOWN

: Temp setting menu

: TEMP setting

: setting

§ § : Temperature code

: TEMP A/D input value

: Measurement value

PLAY

T e m p

TEMP Setting

T M § §

T p i n

SKIP UP SKIP DOWN

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

* When the [DISP] key operation is performed in the specific state, the menu changes to

"TEMP SETTING menu".

* In the specific state the setting changes in the range of "00h to FFh" when the

[VOL UP/DOWN] key is pressed.

: Adjustment setting menu

PLAY

A D J S E T

Adjustment Setting

C O K

F A T

SKIP UP SKIP DOWN

T A T

SKIP UP SKIP DOWN

C A T

SKIP UP SKIP DOWN

F A B

SKIP UP SKIP DOWN

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

* When the [DISP] key operation is performed in the specific state, the menu changes to

"TEMP 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.

– 26 –

MD-MS722/C/W/MS721W

: Digital EQ setting menu

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] key is pressed in specific menu, the "TEST MODE STOP" state is set.

* When the [DISP] key operation is performed in the specific state, the menu changes to

"TEMP 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

C T R L

Control Setting

C T 0

C T 1

SKIP UP SKIP DOWN

C T 2

SKIP UP SKIP DOWN

C T 3

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

P W C

SKIP UP SKIP DOWN

P W L

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

I N H

SKIP UP SKIP DOWN

Continued to

the next page

SKIP UP SKIP DOWN

– 27 –

MD-MS722/C/W/MS721W

Continued from

the preceding page

D R H

SKIP UP SKIP DOWN

P L E

SKIP UP SKIP DOWN

R C E

E L T

S L T

SKIP UP SKIP DOWN

S P M

SKIP UP SKIP DOWN

M S L

U S 0

SKIP UP SKIP DOWN

U S 1

U S 2

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

* When the [DISP] key operation is performed in the specific state, the menu changes to

"TEMP 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.

– 28 –

MD-MS722/C/W/MS721W

IC651

MOTOR DRIVER

LB1930M

VCC

IC351

HEAD DRIVER

74ACT02T

VCC VEE

BATTERY CASE

(BOOSTER CIRCUIT

BUILT-IN)

RECHARGEABLE

BATTERY

M903

LIFT MOTOR

IC850

POWER DRIVE

IR3M09N

IC820

POWER DRIVE

IR3M09N

IC501

AD/DA

CONVERTER

AK4519VF

M902

SLED MOTOR

IC101

RF SIGNAL

PROCESSOR

IR3R55

IC771

TK71225M 2.5V

REGULATOR

IC200

2V REGULATOR

62FP2002

IC401

SYSTEM

MICROCOMPUTER

IX2772AF

RIPPLE

FILTER

VCC VEE

IC871

TK71345M

+4.5V REGULATOR

OPIC

LASER

PICK

MAGNETIC

HEAD

M901

SPINDLE

MOTOR

IC201

ENDEC LSI

LR37811

+2.8

+2.5

T F

+2.5

+2.5+2.5

+2.8

VDD

+2.0

+2.8

+2.5

–2.5

AVCC

+2.5

+6~8

+2.8

J703

REMOTE

CONTORL

J801

DC IN

(+4~+5.5V)

(+2.9~+4.1V)

(+3.4V)

VCC

+2.35

DISPLAY UNIT

OPERATION UNIT

IC901

3-PHASE BRUSHLESS

DRIVER

BA6965AF

IC703

AUDIO AMP

IR3R54N

IC701

AUDIO AMP

IR3R54N

IC601

PWM DRIVER

17A39TD

VMVCC

IC402

EEPROM

S29L294A

+4.5

VCC

VS

IC202

16BIT D-RAM

IX2723AF

+2.5

+4.5

OPTICAL IN

UNIT

J701

DIGITAL INPUT

J701

LINE INPUT

J702

MIC IN

(READY FOR

PLUG-IN POWER)

J703

HEADPHONES

LINE

1,6

19,20

17 13

24,26

29,31

6,8

13,14

24,42

25-30,40

3,5-9,11

26-30,

32-37,

39-46

2-5,

7-12,

14-23

14

8,11

4

1

7,9 3,4

57,66

55,58

59,

70-74

7-12,

15,17

1,12

3,6

19,20

5,6

20 17

20

17

10,12

5,6

22,24

18,19

Q721

8

13

1-4

35

2,15-17,

19-22

1-3

14-16

69,

72,

73,

83,

84

9,

10,

13

42,48

2

17-24

50

4

5

12

333

12

2

3

4

5

82-84,86

89-100

52,53

2

3

4

1,20-30,

76,93-95

SERIES

REGULATOR

OVER VOLTAGE,

REVERSE-CONNECTION

PROTECTION CIRCUIT

Figure 29 BLOCK DIAGRAM

– 29 –

MD-MS722/C/WMS721W

S

2

0

2 2

H

S E

4

3

2

T

1 H

6

EFMO

DSPDAT

P31 P32

P30

MAIN PWB-A

CN101

PWB

M901

M902

M

TP101

A

TP666

16

SW902

DISC PROTECT

+ –

PLAYBACK SIGNAL RECORD SIGNAL

TP111

TP110

TP108

TP109

TP103

TP102

TP106

TP105

11

10

4 3 2 1

8

9

6

5

7

11

10

4 3 2 1

8

9

6

5

7

B

C357

0.1

2SK2911

TP665

15

COM W U V

COM

CVCC

Q354

2SK2911

C351

47P(CH)

Q352

TP664

TP663

14

13

SW901

DISC IN

VCC

DGND

LDON

+B

HEAD DRIVER

13

D352

SB0209CP

D351

SB0209CP

TP662

TP661

TP660

TP659

11

10

12

9

RF2

MP/R

LDVAR

IC351

74ACT02T

8 9

10 11 12

VCC

14

TP658

TP657

8

7

HEAD

TP116

TP117

TP118

TP114

TP115

13

12

18

15

14

16

17

13

12

18

15

14

16

17

F

E

RF4

RF3

RF1

VCC

AGND

OPIC

PICKUP UNIT

GND

7 6 5 4 3 2 1

C354

0.1 C353

10/6.3

Q353

2SK2909

C361

0.039

R361

15

Q351

2SK2909

R922 100K

+B

INNSW

PDCNT

330

R921

TP656

TP655

TP654

TP653

TP652

TP651

4 3 2 1

6

5

CN601

1 16

+ -

M

M903

LIFT

MOTOR

GP1S93K

PH901

C103

TP120

TP121

TP119

TP122

21

22

19

20

21

22

19

20

T–

F–

F+

T+

R905 100K

4.7

R903

R351

330

C903

3.3

TP351

C102

1

C104

0.027 R105

390K

C161

1

270K

R906

TP901

TP601

C608

1 2 3 4 5

TP144

6 7 8 9

10 11 12

Q101

2SA17457

C165

0.033

R909

10K

11

FG

12

BRK–

13

BRK+

14

STBY

15

RIB

16

VCC VM

17 18 19

WOUT VOUT

20

BA6965AF

3-PHASE

BRUSH LEESS

DRIVER

C911

0.1

R403

1K

56K

R601

1

3.3

C609

A

B

C

FLEXIBLE

PWB

D

E

F

FLEXIBLE

G

SPINDLE MOTOR

SLED MOTOR

H

SPINDLE/SLED/LIFT MOTOR ASSY UNIT

• NOTES ON SCHEMATIC DIAGRAM can be found on page 39.

ROUT

RF1 RF2 RF3 RF4

REFI REFO RFADD TCGI AIN BIN EIN FIN

F– F+ T+ T–

IC901

C610

48

R and SW

BIAS

13

C902

0.01

UOUT

1

C112

0.033 C111

0.0033

46

47

TTR

GOUT

DIFF DIFF

RF SIGNAL,

PROSESSOR

BIAS

AVCC

14

15

CK101

R154

1.2K

R161

1.2K

10

GND CSL2

9

CSL1

8

CST

7 6

COM

5

WIN

4

VIN

3

UIN

RF

2 1

DCNT1

L609

47µH

L610 47µH

L608

100µH

SLDRR SLDRF SPDRF

45

EFMAGI

STBY

16

R908 100K

R404 100K

X176KO

CK112

EFM AGC

IR3R55

C110

0.22

44

IC101

SGAIN

DISC

17

CK103

CK102

R907 180K

C910 0.033

C909 0.033 C908 0.22

C905 0.0022 C906 0.0022 C907 0.0022

R902

1

C107

C109

0.012

NC

41 40 39 38 37

EFMO

EFMI

RF2-1

ADAG

HPFLPF

DTEMP

LATCH

CLOCK

23

22

21

TP151

TP145

CK106

CK104

AUSCLK

RFLAT

TEMP LDON

LDVAR

OPICGA

33K

SPIN

HDON

6

G O2

7 8 9

O1

VCC

1

0

IC651

LB1930M

IC601

36

VG

35

VC LG

34

GND

33 32

VD3 FO3

31

PGND

30

RO3

29

VD3

28 27

VD4 RO4

26

PGND

25

FO4

24

VD4

23

RI3

22

FI3

21

FI4

20

RI4

ADAGC

ADIPI

ADIPO

ADLPFO

22KO 22KI

TCGO

AOUT BOUT EOUT FOUT

DATA

24

AUDATA

5

G I2

4 3

I1

2 1

+B

WBO

DVCC

C106

0.22

+B

36 35 34 33 32

CK109

31

CK108

30 29 28 27 26 25

270P(CH)

C172

33/6.3

+B

SPDRR

LDCNT1

LDCNT2

TP602

C651

0.1

C622

L604

47µH

L603

47µH L602

47µH

L601

47µH FODRR FODRF TRDRF TRDRR

NC

C121

C122

C123 390P

C124 390P

EFMO

1

1/16

43

42

AGND

AVCC

EFMAGC

ADIP AGC

LOGIC

AGND

DGND

19

20

18

C130

0.1

R901

1

R904

DISCPR

MOTOR DRIVER

17A39TD

PWM DRIVER

AGND

1

CLK

2

PS

3

OE

4

VD1

5

FO1

6

PGND

7

RO1

8

VD1

9

VD2

10

RO2

11

PGND

12

FO2

13

VD2

14

RI1

15

FI1

16

FI2

17

RI2

18 19

R106

56K

CK107 TP133

TP132 TP131 TP130

L171 10µH

C171

33/6.3

+B

L651

0.47µH

C601

R101

22K

TP487

+B

1

R104

22K

F+

F–

T– T+

C602

1

+B

TP139

22K

R103

22K

R102

TP100

C603

1

C204

0.47

TP209 TP210

CK201 CK202 CK203

FOK

CK204

SENSE

CK205

CIN

MCCK DINT

R204

XRT SYD0 SYD1 SYD2 SYD3 SYD4 SYD5 SYD6 SYD7 SYWR SYRD SYRS

(Only Serial No. 8110180)

TP610

C600

0.1

C605

C604

1

CK206

1K

22/6.3

TP211

C203

0.1

C422 10/6.3

TP201

100

L600

76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99

2.2

R207

680

TP208

SBSY SFSY FOK SENSE COUT MCCK DINTX VDD1 DGND RSTX SYSD0 SYSD1 SYSD2 SYSD3 SYSD4 SYSD5 SYSD6

FEMON

DADATA

ADDATA

AVCC

EFMI

EFMMON

R422 100K

4 3 2 1

TP202

L204

CK207

BCLK

VDD3

LRCK

DFCK

DOUT

DGND

TOTMON

76

TEMON

77

SBCK

78

SBO

79

SYSD7

97

SYWRX

98 99

SYRDX

100

SYRS

BIN

EIN

FIN

AIN

AGND

TCG

10 11 12 13 14 15 16 17 18 19 20

8

9

6

5

7

0.1

C207

SYD7

SYD6

RCAULT MCPGIN

INPGIN INPGCK RCPCNT2

TP416

R401

100K

TP417

R402

100K

LDON

OPICGA

RFLAT

ELLVL

AUSCLK

ELON

XL201

33.8688MHz

TP204

1M

R222

C212

8P(CH)

X1I

DIN

VPD

X1O

VDD1

DGND

IC201

LR37811

ENDEC LSI

TEST0

TEST1

WBI

VBAT

VDD1

DGND

C205

0.1 R206

TP206

270K

L100 10µH

C100

R205

680K

10/6.3

SYD5

SYD4

SYD2

SYD3

26 27

SYD2

28

SYD6

29

SYD7

30

VSS

31

RCLAT

32

MCPGI

33

INPGI

34

INPGCK

35

RCPCNT

36

TEST1

37

TEST0

38

JPNP

39

VCC

40

RCLED

41

ELLVL

42 43

LDON

44

OPICGA

45

RFLAT

46

RACLK

47 48 49 50

PBLAT

51 52 53

AUDATA

PBAULT

SW402 HOLD

C211

5P(CH)

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

57

VXI

ADPON

DAPON

50

EFMO

49

PLCK

48

ACRCER

47

TCRS

RAA0

29

RAA1

28

RAA2

27 26

RAA3

X176KO

TEST2

FODRF

TP207

FODRR

FODRF

X176KO

SYRD

SYWR

SYD1

SYD0

22 23 24 25

SYD1

SYD0

SYWR

26 27 28

48 49 50

PBOPON

RPLAY

REC

55 56 57 58 59 60 61 62 63 64 65 66

54

TP412

PBMUTE

R

LDCNT1

LDCNT2

56

51 52 53 54 55

DCNT1

EMPH1

X700KO

LDCNT1

LDCNT2

OPTCNT

RAD0 RAD1

RAWEX

RARASX

RAA9 RAD3 RAD2

RACASX

DGND

RAOEX

RAA8 RAA7 RAA6 RAA5 RAA4 VDD2

RAA10

SLDRR

SLDRF

TRDRR

TRDRF

FODRR

SPDRR

SPDRF

21

23 24

22

25

VCCENDEC

SPDRR

SPDRF

SLDRR

SLDRF

TRDRR

TRDRF

TP413

R413

PCNT1

PHOLD

SYRS

R414

1K

VSS

EEPD

EEPK

SYRS

SYRD

PCNT1

PHOLD

SYD3 SYD4 SYD5

IC401 IX2772AF SYSTEM

MICROCOMPU

ELON VSS

RADAT

INNSW

MD2

WDTOVF

MD1

MD0

BUZOUT

KHOLD

INNSW

TP404

TP403

BEEP

10K

R407

R408 100K

C431

0.47

TP212

50

CK2

49

TP2

48

CK2

47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26

C201

1/16

L20 22µ

DCNT1

1K

TP407

1

TP408

R412

10K

1K

TP409

R415

DSPSTB

DSPSCK

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

EPCS

DSPSTB

DSPSCK

XTAL

VCC

µSTBY

NMI

RESET

TP400

XL401

4.194M

D431

1SS361

1 R431 330K

1

23456

Figure 30 SCHEMATIC DIAGRAM (1/4)

– 30 –

P30

H

O

W

0

.

T

T C A

MD-MS722/C/W/MS721W

P31 P32

DADATA ADDATA

4

1

DINT

IC202

IX2723AF

TP414

DFCK BCLK LRCK DIN ADPON DAPON OPTCNT

EMPH1

RDATA

+B

C200 1

1 2

IC200

62FP2002

2V REGULATOR

3

+B

TP139

TP211

C204

0.47

TP209 TP210

TP100

C604

FOK

(Only Serial No. 8110180)

TP610

C605

1

CK201 CK202 CK203

CK204

SENSE

CK205

CIN MCCK

CK206

DINT

C203

R204

1K

XRT SYD0 SYD1 SYD2 SYD3 SYD4 SYD5 SYD6 SYD7 SYWR SYRD SYRS

C600

22/6.3

0.1

R104

22K

R103

22K

1

R102

K

487 B

F+ F–

T– T+

1

C602

C603

1

TP201

C422 10/6.3

R207

680

TP208

76 77 78 79

SBSY

80

SFSY

81

FOK

82

SENSE

83

COUT

84

MCCK

85

DINTX

86

VDD1

87

DGND

88

RSTX

89

SYSD0

90

SYSD1

91

SYSD2

92

SYSD3

93

SYSD4

94

SYSD5

95

SYSD6

96 97 98 99 100

L600

2.2

TP202

BCLK

DFCK

FEMON

DADATA

ADDATA

AIN

AGND

AVCC

EFMI

EFMMON

4 3 2 1

5

C207

R422 100K

ELLVL

L204

XL201

33.8688MHz

TP204

CK207

R222

DIN

VDD3

LRCK

DOUT

DGND

TOTMON

76

TEMON

77

SBCK

78

SBO

79

LR37811

ENDEC LSI

SYSD7

97

SYWRX

98 99

SYRDX

100

SYRS

BIN

EIN

FIN

TCG

VBAT

10 11 12 13 14 15 16 17 18 19 20

8

9

6

7

0.1

R205

SYD7

SYD5

SYD4

SYD6

RCAULT MCPGIN

INPGIN INPGCK RCPCNT2

TP416

R401

100K

TP417

R402 100K

LDON

OPICGA

RFLAT

AUDATA

AUSCLK

ELON

1M

8P(CH)

X1O

IC201

WBI

C205

0.1

680K

SYD3

C211

5P(CH)

C212

X1I

VDD1

DGND

TEST0

VDD1

DGND

R206 270K

L100

10µH C100 10/6.3

26 27 28

SYD6

29

SYD7

30

VSS

31

RCLAT

32

MCPGI

33

INPGI

34

INPGCK

35

RCPCNT

36

TEST1

37

TEST0

38

JPNP

39

VCC

40

RCLED

41

ELLVL

42 43

LDON

44

OPICGA

45

RFLAT

46

RACLK

47 48 49 50

51 52 53

VXI

VPD

TEST2

TEST1

TP206

SYD2

SYD1

SYD2

PBLAT

REC

TP412

PBAULT

SW402 HOLD

LDCNT1

LDCNT2

56

51 52 53 54 55

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

57

DCNT1

EMPH1

ADPON

DAPON

LDCNT1

LDCNT2

OPTCNT

RAD0

50

EFMO

RAD1

49

PLCK

RAWEX

48

ACRCER

RARASX

47

TCRS

RAA9 RAD3 RAD2

RACASX

DGND

RAOEX

RAA8 RAA7 RAA6

RAA0

29

RAA5

RAA1

28

RAA4

RAA2

27

VDD2

26

RAA3

RAA10

SLDRR

SLDRF

TRDRR

TRDRF

X176KO

FODRF

FODRR

SPDRR

SPDRF

21

23 24

22

25

VCCENDEC

TP207

X176KO

SYD0

22 23 24 25

SYD0

PBOPON

54

PBMUTE

SPDRR

SPDRF

SLDRR

SLDRF

TRDRR

TRDRF

FODRR

FODRF

TP413

SYRD

SYWR

PCNT1

PHOLD

SYRS

R414

1K

VSS

EEPD

EEPK

SYRS

SYRD

SYWR

PCNT1

PHOLD

SYD3

26

SYD4

27

SYD5

28

IC401

IX2772AF

SYSTEM

MICROCOMPUTER

ELON

48 49

VSS

50

RADAT

INNSW

KHOLD

RPLAY

MD2

WDTOVF

MD1

MD0

BUZOUT

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

INNSW

TP404

TP403

BEEP

10K

R407

R408 100K

C431

0.47

TP212

50 49 48

X700KO

47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26

C201

DCNT1

R413

1K

TP408

R412

10K

1K

TP409

R415

DSPSCK

EPCS

DSPSCK

RESET

µSTBY

NMI

TP400

XL401

4.194MHz

D431

1SS361

R431 330K

CK224 TP203 CK222

1/16

L201 22µH

S29L294A EE-PROM

TP407

1 2 3 4

DSPSTB

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

DSPSTB

XTAL

VCC

S80820LN

1

EFMO

TP205

IC402

R411 100K

VCC

CS SK

DO

PRTC

DI

GND

DSPDAT

8

9

7

RMDAT

DSPDAT

100 99 98

VSS

EXTAL

HSTOP

IC431

RESET

OUT

VSS

VDD

8 7

NC

TP411

6

TP410

5

PDCNT

DISCPR 4 3 2 1

6

5

VSS

PDCNT

DISCPR

EJSW

CKSTP

HDON

PCNT2

XRST

VCC

SENSE

DCNT1M

SWPUP

MCMON

START

LDVAR

TEMP HKEY2 HKEY1

RKEY

PLVINN PLVDCI

PLVDRY

EMPH0

(JOG1)

(JOG0)

STOP

PLAY

EMPH0

4 3 2

SPIN

DISCIN

FOK

VSS

AVSS

Vref AVCC DINT

TP200

CIN

100

CIN

99 98 97 96 95 94 93 92 91 90 89 88 87 86 85 84 83 82 81 80 79 78 77 76

22K

R426

1

VCC

2

I/O1

3

I/O2

4

WE

5

RAS

6

A10

7

A0

8 9

A1

10

A2

11

A3

12

VCC

16BIT D-RAM

VCCDRAM

C202

47/6.3

L202 100µH

VCC2R5V

1 2 3

GND

7SH00FU

NAND GATE

SW401

HDON

R406 100K

XRT FOK SENSE

TP415

TP401

C401

0.1

LDVAR HKEY2

HKEY1

22K

R425

TP402

22K

R423

RKEY

RESET

IC404

TP406 R405 10K

TEMP

R424

JOG1 JOG0

GND

CAS

GND

DRY

I/O4 I/O3

OE

A9 A8

A7 A6 A5 A4

VCC

3 2

INN DCI

22K

24 23 22 21 20 19

18 17 16 15 14 13

5 4

EJECT

PCNT2

TP405

START

C506

EMPH0

+B

HREC

JOG0 JOG1

R460

47K

R455

5.6K

R459

HKEY2

47K

HSTOP

HPLAY HKEY1

R451

R452

5.6K

8.2K

R482

18K

11

10

12

9

C505

0.001

SCLK

LRCK

MCLK

SDTO

0.001

DGND

SDTIVDCMODE

131415

161718192021

IC501

AD/DA

AK4519VF

CONVERTER

C507

10/6.3

C774

+B

1

C773

2.5V REGULATOR

0.22

+B

C836

D836

1SS372

C837

0.1

(From Serial No. 81201801)

VREF

1

DB

2

(Only Serial No. 81101800)

220K

R826

C822

390K

R824

C825

C826 100/6.3 (Only Serial No. 81101800) 220/6.3 (From Serial No. 81201801)

R456

8.2K

R453

18K

R481

4 3 2 1

8

6

5

7

AINL

VCML

PWAD

PWDA

DEM1

DEM0

AOUTL

VCOM

AOUTR VBVA

1

C508

R500

4.7

IC771

TK71225M

4 3

2 1

5

L771 47µH

C771

47/6.3

L862

47µH

C868

1

C869

47/6.3

C862

1/16

0.1

R853

330K

R854

0.2M

C859

0.001

R858 100K

100K R852

C851 68P (CH)

R821 680K

R822

3.3M R823

100K

C821 68P (CH)

8P

L821 10 (CH)

3.3/10 D821

F10J2E

R457

18K

R454

56K

36K

AINR

VRAD

VCMR

AGND

2324

22

C500 10/6.3

TP771

L861

4.7µH

D852

F1J2F

C857 10(CH)

C853

10P

R855 270K

R860 33K

R851 10K

IC821 CPH3303

C481

0.1 DSPS DSPS DSPD

VRDA

C772 47/6.3

TP772

C864

47/6.3

PO

VREF

1

DB

2 3

EAIN+ EAIN-

4

EAOU

5 6

GND

VREF

1

DB

2 3

EAIN+ EAIN-

4

EAOU

5 6

GND

C503

R458

3.3/10

D8 F1

P

56K

C 0

I

R

P

• The numbers 1 to 18 are waveform numbers shown in page 40.

7

8 9 10 11 12

Figure 31 SCHEMATIC DIAGRAM (2/4)

– 31 –

MD-MS722/C/WMS721W

P30

P31

P32

ATA ATA

A

K

ON ON CNT

MPH1

B

C

D

+B

E

F

C200

G

1

3

2

IC200

62FP2002

2V REGULATOR

+B

HREC

JOG0 JOG1

R460 HKEY2 HSTOP

HPLAY HKEY1

C505

0.001

C506

0.001

IC501

AK4519VF

C774 1

C773

EMPH0

C826 100/6.3

+B

(Only Serial No. 81101800) 220/6.3 (From Serial No. 81201801)

47K

R459

47K

R451

5.6K

R482

18K

11

10

12

SCLK

LRCK

SDTO

DGND

SDTIVDCMODE

131415

AD/DA

CONVERTER

C507

10/6.3

+B

2.5V REGULATOR

0.22

D836

1SS372

C837

0.1

(From Serial No. 81201801)

VREF

1

DB

2

(Only Serial No. 81101800)

220K

R826

390K

R824

R456

R455

8.2K

5.6K

R453

R452

18K

8.2K

8

9

6

7

AINL

MCLK

PWAD

PWDA

DEM1

DEM0

AOUTL

161718192021

R500

4.7

IC771

TK71225M

4 3 5

L771 47µH

C771

47/6.3

L862 47µH

C868

+B

C862

1/16

C836

0.1

R853

R854

0.2M

C859

0.001

R858

100K

100K R852

R821

680K

R822

3.3M R823

100K

8P

C822

L821 10 (CH)

C825

3.3/10 D821

R457

18K

R454

56K

R481

36K

4 3 2 1

5

VCML

VCMR

AGND

VCOM

AOUTR VBVA

22

1

C508

2 1

1

C869

47/6.3

L861

4.7µH

F1J2F

330K

C853

10P

R855 270K

R860 33K

R851

10K

C851 68P (CH)

C821 68P (CH)

IC821 CPH3303

F10J2E

AINR

2324

10/6.3

D852

TP451 TP452 TP453 TP454 TP455 TP456 TP457 TP458 TP459

56K

R458

TP461 TP462 TP463 TP464 TP465 TP466 TP467 TP468

TP485

C481

0.1

TP484 TP483

DSPSTB

TP482

DSPSCK

TP481

DSPDAT

R501

470

C501

0.0022

C504

3.3/10

C503

VRAD

VRDA

C511

3.3/10

1

TP500

L500 22µH

C500

C775

0.01

TP771

C772 47/6.3

TP772

C864

47/6.3

C861

1/16 D861 F10J2E

C856

1/16

C857 10(CH)

L852

10µH

IC850

IR3M09N

POWER DRIVE

VREF

1

DB

2 3

EAIN+ EAIN-

4

EAOUT

5 6

GND

OSCIN

VREF

1

DB

2 3

EAIN+ EAIN-

4

EAOUT

5 6

IC820

IR3M09N

POWER DRIVE

CN451

CN482

R502

470

C502

0.0022

RESET

4.5V REGULATOR

D871 RB521S30

R871

18

L851

4.7µH

IC851

CPH3403

OSCIN

12

C858

OSCOUT

100P(CH)

11

OSC

10

ROSC

STATE

9

PWM

VCC

8

7

OUT

C831

1

12

C828

OSCOUT

100P (CH)

11

OSC

10

ROSC

STATE

9

PWM

VCC

8

7

OUTGND

R843 100K

KEY FLEXIBLE PWB UNIT

FLEXIBLE

PWB

1

DISPLAY

1

VOL DOWN

2

REC

3

EDIT

4

VCC

5

P-MODE

6

JOG 1

7

JOG 2

8 9

10 11 12 13 14 15 16 17 18

7 6 5 4 3 2 1

C509

2.2 C510

C759

PBMUTE

C855 100P(CH)

C830 1

BASS ENTER STOP SKIP DOWN SKIP UP PLAY VOL UP CHARACTER

18

7

1

FLEXIBLE

PWB

2.2 9

101112

LOUT

RIHP

ROUT

IC701

R702

100

C761 1

1112

27K

R757

27K

R756

ROUT

C760

0.027

1413

C754

1

RCAULT

BEEP

PBAULT

AUDATA

AUSCLK

IC871

TK71345M

(ON/OFF)

4 3

2 1

5

C871

R872

1

100K

+B

D851 RB521S30

100K

R857

0.01

C854

R859

15K

C827 100P (CH)

R829

15K

R832

220K

Q841

DTA144 TE

2

1

3

GND

R72

8.2K

R719

8.2K

8

7

LIHP

AGND

DGND

VEE

C702

+B C762 1

R754 270K

0.68

C757

10

9

LOUT

RIHP

16

C872

10

L871

0.47µH

Q830

DTC144 TE

3

1

R831 180K

0.33

C833

R712

5.6K

R711

5.6K

C734

C733

0.1/16

4 3 2 1

6

5

RI

LI

VCC

24 2322

212019181716151413

R703 120K

C701

10/6.3

0.01

C703

10/6.3

100

R701

R762

3.6K

R761

3.6K

0.68

C758

C756

8

LIHP

DGND

17

2SA17457

RCPCNT2

2

22/6.3(Only Serial No. 81101800)

PCNT2

R769 39K

3.3/10

6 5 4 3 2 1

7

RI

LI

AGND

VEE

VCC

191815

R753 120K

L751

47µH

+B

L752

47µH

1K

C766

C753

R768

R764

1

82

Q891

Q892

2SA17457

R892

56

R891

2.2K

TP807

C801

0.1

IC802 NDH8304P

POWER SELECT

CHARGE DRIVE

4

5

3

6

2

7

1

8

D801 SB10015C

R830

100K

F800

1.00A,

63VDC

!

C806

3.3/10

C805

100/6.3

4

IC841

C841

5

XC62HS02

POWER SUPPLY

MICROCOMPUTER

10/6.3(From Serial No. 81201801)

R811 330K

100K

R844

PCNT1

PHOLD

DCI

START

DRIVER

IR3R54N

AUDIO AMP.

R770 39K

24 23222120

C755

0.01

1K

R767

0.22

R763 82

R893

1K

R815

56K

R816 24K

+B

R814

3 2 1

R842

1K

R812 180K

R813

100K

1 2 3 4

7WH123FU

0.1

C-MOS LOGIC

C813

LCD

IC703

R765

R766

0.22

C765

R800

560

2.2K

R801

1K

1

C804

IC842

Q842

DTA114YE

L710

0.47µH

INPGCK

R715 100K

INPGIN

MCPGIN

R729

2.7K

R730

2.7K

IR3R54N

AUDIO AMP.

4.7µH

KEY

L-CH R-CH

C752

0.082

C751

RKEY

ELLVL

ELON

VCC1 C800

1

015Z5.1Y

D802

R810

6.8K

1

R803

2

27K

R804 680

D841

1SS361

R841 470K

D843

1SS361

D842

1SS361

R848

1M

8 7 6 5

180K

R849

2

1

3

RPLAY

R717

1K Q711

RN1444 A

2

3

1

C712

L-CH

100P(CH)

R-CH

R714

R716 100K

10K

C714

1

R728

1K

C731

0.22 C721

3.3/10 C722

3.3/10

C735

0.001

L491

D494

15AZ7.5Y

C491

0.1/16

PLAY

L454

R492 1K

0.082

D492

15AZ7.5Y

RPLAY

TP805

R809

2.2K

R802

4.7K

6 5

CURRENT DRIVE

4 3

R805 680K

0.01

C807

TP808

R807 100K

R808

C808

0.1/16

TP809

C842

1

330K

R845

MS722/MS722C MS722W/MS721W(S)

/MS721W(BL)

C715

0.1

C713

R713

1

10K

L702 L703

L704

(CH)

100P

C711

Q721

2SC4213 B

1

C727

R726

39K

R724

6.8K

8.2K

R723

6.8K

R727

L714

L-ch

L713

R-ch

L712

C723

C724

0.001

C736 100

L456

TP729

L452

L453

RDATA

L457 L458

D491

015Z5.1Y

C451

D493

015Z5.1Y

0.001

TP801

TP802

IC801

HN1C03FU

CONSTANT

D800

1SS368

TP803

R806 300K

TP804

TP810

C802 1

TP811

C803

0.1 TP812

1M

180K

R819

330K

R846

R818

180K

330K

R847

HPLAY

HREC

INN

DRY

R725 100

C726

TP726 TP725

TP723 TP721 TP727 TP728

TP707 TP709 TP708

3.3/10

TP713

TP712

TP711

L711

TP722 TP724

TP701 TP702 TP703 TP704 TP705

TP714

+B

R765·766

10

27

J701 OPTICAL /LINE IN

7

VCC

9

Vout

8

GND

1

L

2 3 4 5

C725

3.3/10

J702

MIC IN

4 2 3 1

REMOTE

CONTROL/

HEADPHONES

6 5 2 4 3 1 7 8

J801

DC IN

1 2 3

BATTERY

TERMINAL

EXT.BATTERY

TERMINAL

GND

R

J703

H

• NOTES ON SCHEMATIC DIAGRAM can be found on page 39.

1

23456

Figure 32 SCHEMATIC DIAGRAM (3/4)

– 32 –

R

P

MD-MS722/C/W/MS721W

PIN NO.

10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48

PIN NO.

1 2 3 4 5 6 7 8

9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24

1 2 3 4 5 6 7 8 9

IC101 VOLTAGE

0.7V

1.29V

1.26V

0.7V

1.26V

2.52V

0.18V

2.52V

2.52V 0V 0V

1.46V

2.34V 0V 0V

2.51V

1.26V

1.6V

1.26V

1.26V NC

1.26V

1.26V 0V

1.26V

2.52V 0V 0V

1.26V

1.26V 0V

IC202 VOLTAGE

2.5V

1.23V

1.35V

2.37V

1.71V NC

0.9V

1.76V

0.9V

0.58V

2.5V 0V

0.5V

0.79V

1.93V

0.93V

1.26V

1.1V

1.78V

2.05V

1.63V

1.65V 0V

PIN NO.

10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50

PIN NO.

10 11 12 13 14

PIN NO.

1 2 3 4 5 6 7 8 9

1 2 3 4 5 6 7 8

VOLTAGE

1V

2.5V

1.27V 0V

1.27V

1.27V 126V

2.2V

1.43V 2V 0V 0V 0V 0V 1V 0V 0V 0V 0V 0V 0V 0V 0V

1.58V

0.87V

1.73V

1.1V

2.5V

0.6V

0.8V

1.9V

0.9V

1.29V

1.8V 0V

1.9V

1.6V

1.64V

1.1V

1.7V

2.5V

1.6V 0V 0V

1.93V 1V

0.9V

IC351 VOLTAGE

0V 0V

2.35V 0V 0V

2.35V 0V

0.91V

2.5V 0V

0.91V

2.35V 0V

4.54V

IC402 VOLTAGE

2.35V 0V – – 0V 0V 0V

2.35V

IC200

PIN NO.

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 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99

100

VOLTAGE

1V 0V 0V 0V 0V 2V 0V 0V 0V 0V

0.8V 2V 0V

0.9V

0.79V

1.46V 1V 2V 0V 1V 1V 0V 0V 0V 1V 1V 1V 2V 0V 2V 1V 2V 0V 0V 1V 2V 2V 0V

2.33V

1.24V

1.46V 0V

0.1V

0.35V 0V

1.56V

0.25V

2.28V

2.34V 0V

IC401

0V

2.48V 0V

2.33V NC 0V 0V 0V 0V

2.35V 0V

2.35V

2.35V – 0V

2.35V 0V

2.35V

2.35V 0V – – – – – – – 0V 0V

2.14V

2.5V

2.5V 0V 0V

2.35V

2.35V 0V 2V 0V 0V 0V

2.35V 0V 2V 0V 0V

PIN NO.

100

PIN NO.

10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50

1 2 3 4 5 6 7 8 9

VOLTAGE

Preform the measurement on the IC401 pin 37 in the TEST mode with GND short-circuited. (LCD is in "TEST" state.)

IC404

VOLTAGE

NO.

0.22V

1

0.22V

2

0V

3

2.33V

4

2.5V

5

IC431

VOLTAGE

NO.

2.35V

1

2.35V

2

0V

3

0V

4

IC871

VOLTAGE

NO.

0V

1

0V

2

0V

3

4.5V

4

6.1V

5

• The numbers 1 to 18 are waveform numbers shown in page 40.

7

8 9 10 11 12

Figure 33 SCHEMATIC DIAGRAM (4/4)

– 33 –

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 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99

VOLTAGE

2.35V 0V

2.33V 0V

2.35V

0.3V

2.35V

2.27V

2.35V

1.1V

1.1V 0V

2.34V 0V 0V

2.24V

2.24V –

2.35V 2V

2.35V

2.35V 0V

1.55V

1.48V

2.12V

2.34V

1.47V 0V 0V 0V 0V 0V 0V

2.34V 0V 2V

2.35V 0V 0V

2.25V

2.35V

PIN NO.

1 2 3 4 5 6 7 8

9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24

PIN NO.

1

2

3

4

5

6

7

8

9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36

PIN NO.

1

2

3

4

5

6

7

8

9 10

IC501

VOLTAGE

2.5V

2.5V 0V 0V 0V 0V 0V 0V 1V 1V 1V 0V 0V

2.5V 0V 0V 0V 0V 0V 0V 0V 0V

2.5V

IC601

VOLTAGE

0V 1V

2.34V 0V

4.86V 0V 0V 0V

4.86V

4.86V 0V 0V 0V

4.86V 0V 0V 0V 0V 0V 0V 0V 0V

4.86V 0V 0V 0V

4.86V

4.86V 0V 0V 0V

4.86V 0V 0V

2.5V

10.3V

IC651

VOLTAGE

2.8V 0V 0V 0V 0V 0V – 0V 0V 0V

PIN NO.

1 2 3 4 5 6 7 8

9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24

PIN NO.

1

2

3

4

5

6

7

8

9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24

PIN NO.

1

2

3

4

5

PIN NO.

1

2

3

4

5

6

IC701

VOLTAGE

0V 0V 0V 0V 0V 0V 0V 0V 0V 0V 0V 0V 0V 0V 0V 0V –2.65V 0V 0V

2.51V

0.8V 0V 0V 0V

IC703

VOLTAGE

0V 0V 0V 0V 0V 0V 0V

0.95V 0V 0V 0V 0V

2.35V 0V 0V 0V –2.65V 0V 0V

2.51V

0.83V 0V 0V 0V

IC771

VOLTAGE

1.26V 0V 0V

2.5V

2.8V

IC801

VOLTAGE

0V

0.24V 0V 0V

0.73V

PIN NO.

10 11 12

PIN NO.

10 11 12

PIN NO.

10 11 12 13 14 15 16 17 18 19 20

1 2 3 4 5 6 7 8 9

1 2 3 4 5

1 2 3 4 5 6 7 8

1 2 3 4 5 6 7 8 9

IC820

VOLTAGE

1.25V

1.2V

0.96V 1V

0.95V 0V

3.55V

4.8V

2.47V

0.4V 1V 1V

IC841

VOLTAGE

0V

4.96V

4.92V 0V

2.35V

IC842

VOLTAGE

4.88V

4.93V 0V 0V 0V

4.5V

4.93V

IC850

VOLTAGE

1.25V

0.9V

1.22V

1.2V

1.17V 0V

0.64V

4.8V 0V

0.4V 1V 1V

IC901

VOLTAGE

0V 0V 0V 0V 0V 0V 1V 2V 2V 0V

2.5V

0.67V 0V

2.34V 0V

2.5V

0.57V 0V 0V 0V

MD-MS722/C/WMS721W

(Only Serial No. 81101800)

A

J801

DC IN

J703

REMOTE CONTROL/

HEADPHONES

R800

R809

D802

R803

R806

IC200

C826

L600

36

4

R805

5

R456

L604

IC802

R457

R802

R810

1

6

34

IC801

1

F800

8

D821

L821

C825

C808

C836

R808

R807

D836

C837

R452

R451

R458

R453

R454

C600

L603

C806

C856

IC821

D852

1

R425

56

R426

C605

C602

C601

L602

L601

20253035

B

C

R801

R804

C807

C200

C803

D

R455

R424

C603

E

C604

L651

4

C651

C622

IC601

5

F

3

G

1

L609

L610

C609

C610

R361

15

10

C608

L608

D351

C351

D352

C361

L851

L852

C857

L771

IC651

19

R601

18

R205

Q352

Q354

D801

C204

C203

D800

C804

C772

R204

C205

C861

IC851

C771

10

C442

76

100

Q353

L861

R351

C805

R206

Q351

D861

75

80

85

90

95

1

C211

C207

C353

C862

C869

C864

5

C124

L862

1

7

IC771

C774

IC201

10

R102

R104

5

L871

C868

C871

C775

1

3

C506

XL201

R222

15 20

C122

IC351

C212

606570

R103

C872

L204

5

4

C505

R207

C123

10

C773

55

R893

Q892

R891

Q891

C715

Q711

45

D871

IC871

13

R872

L710

L500

1

5

10

12 13

51

50

45

40

35

30

25

Q101

C121

C357

R101

C161

14

L100

C100

8

R727

R728

C727

C511

Q721

R726

L703

R717

24

20

15

C735

R892

C731

C736

IC501

L202

L201

C201

1

6 7

26

R161

R154

12 13

C165

L171

C726

R725

L702

C508

C507

R500

C202

IC202

C171

C500

C172

L704

J702

MIC IN

C725

J701

OPTICAL/

LINE IN

5

6 7

8

24

19 18

12

MAIN PWB-A (BOTTOM VIEW)

: Through-hole where the top, bottom and +B patterns are connected. : Through-hole where the top, bottom and hround patterns are connected. : Through-hole where the top and bottom patterns are connected.

H

, : Through-hole connected to any items other than the ground in 6-layer PWB and the +B pattern.

• The numbers 1 to 18 are waveform numbers shown in page 40.

1

23456

Figure 34 WIRING OF P.W.BOARD (1/5)

– 34 –

L712

R724

TP705

TP701

R723

TP712

C721

SW401 EJECT

17

18

C714

16

C723

R713

TP711

R714

R716

R715

C724

C722

R729

TP704

C713

TP707

TP200

TP110

TP114

TP115

L711

SW402

TP144

TP118

TP101

TP487

TP105

L713

TP703

HOLD

C103 C102

C104

TP102

24

R730

C734

TP708

TP204

TP406

C112

TP116

1

R406

12

TP713

TP714

C733

R405

1

R703

TP500

C111

48

13

R105

TP103

D493

L458

L714

C703

R702

13

1520

IC701

510

R720 R719

C711

TP702

5

10

1

R712

C712

R711

C509

C510

R502

C501

R501

C504

R407

R408

TP211

TP405

C109

C110

C107

TP139

4045

IC101

20

15

TP117

TP145

TP106

TP108

CN101

PICKUP FLEXIBLE PWB

12

TP203

TP151

P38 1 - C

TP728

TP772

C702

C701

R701

C758

C503

TP212

C106

37

35

30

TP111

R754

1

3

TP206

R106

24

C761

C502

D431

IC404

25

TP100

L457

24

R761

TP721

D491

TP727

R764

R753

C755

TP709

1

R770

R769

C762

1

C431

23

R431

TP202

C401

5

4

TP458

TP809

R423

C130

TP415

36

TP401

100

TP131

TP130

TP121

C766

L751

20

IC703

5

R762

R757

C759

C760

IC431

76

TP133

TP207

TP122

22

TP729

75

80

85

90

95

1

TP132

TP722

L452

L453

R767

R765

15

10

C756

R756

C813

4

TP457

L752

C757 R844

1

4

70

L454

TP723

TP724

R766

C753

13

C754

12

Q841

R843

IC842

TP412

TP400

C752

R768

R813

IC401

5101520

R415

TP655

TP409

TP109

TP410

TP205

TP411

TP120

2

C751

R763

C765

TP453

D843

TP466

R846

C842

C451

R811

8

5

XL401

TP403

R414

R412

4

IC402

5

R819

R855

R854 R853

6065

R413

TP726

L456

TP725

R492

R845

TP402

TP771

8

9

1

R824 R826

R812

C853

TP408

4

D492

R841

R849

R848

C822

55

TP407

TP351

R907

5

IC841

TP414

D841

R821

C859

TP463

R422

TP404

R403

TP201

R404

R411

C354

C491

D494

R823

R858

C851

45

40

35

30

TP663

P38 6 - H

LCD

TP802

R815

R816

C801

R831

IC850

TP462

18

TP651

TP610

R908

TP119

TP485

1

R402

R401

5

IC901

C800

R482

CN482

TP483

12

7

C854

12

7

TP461

TP464

TP465

R921

R922

15

R909

MECHANISM FLEXIBLE PWB

51

25

D842

C905

3

1

C841

R832

R857

R851 R852

26

C908

R814

R822

C821

R860

R459

TP468

R847

TP666 R902

TP661

L491

TP807

Q830

Q842

C833

6

D851

6

50

TP467

TP208

TP210

TP416

TP665

C910

TP413

1

R818

TP209

TP417

TP801

IC820

R460

TP652

1

R901

C907

C906

R904

10

C909

P38 6 - C

MAIN PWB-A (TOP VIEW)

MD-MS722/C/W/MS721W

TP805

TP484

TP454

11

TP664

TP660

10 13

TP658

TP659

BATTERY,+

BATTERY,–

(221)

EXT. BATTERY

(230)

P38 4 - E, G

KEY SWITCH FLEXIBLE UNIT

1

15

14

(219)

C481 R481

C827

C830

C855

C858

C831

CN451

CN601

C911

20

11

C902

17

TP481

C828

R859

TP657

R903

R829

TP459

TP812

TP456

TP656

R905

R906

TP482

TP804

TP810

TP811

1

16

TP654

TP601 C903

TP901

TP808

C802

TP455

R842

TP602

TP803

TP451

TP452

TP662

TP653

7

8 9 10 11 12

Figure 35 WIRING OF P.W.BOARD (2/5)

– 35 –

MD-MS722/C/WMS721W

(From Serial No. 81201801)

A

J801

DC IN

J703

REMOTE CONTROL/

HEADPHONES

R800

R809

D802

R803

R806

IC200

C826

L600

36

4

R805

5

R457

R456

L604

IC802

L821

R802

R810

1

6

34

IC801

1

F800

8

D821

C825

C808

C836

R808

R807

D836

C837

R452

R451

R458

R453

R454

C600

L603

C806

C856

IC821

D852

1

R425

56

R426

C605

C602

C601

L602

L601

20253035

B

C

R801

R804

C807

C200

C803

D

R455

R424

C603

E

C604

L651

4

C651

C622

IC601

F

3

G

5

1

L609

L610

C609

C610

R361

15

10

C608

L608

D351

C351

D352

C361

L851

L852

C857

L771

IC651

19

18

R601

Q354

D801

C204

R205

Q352

D800

C203

C804

C861

IC851

C772

R204

C205

C771

76

L861

10

100

Q353

R351

Q351

C805

D861

R206

J702

MIC IN

R893

Q892

C872

L871

L862

C868

1

7

1

3

IC771

C774

IC201

10

R102

R104

5

C871

C775

XL201

R222

C122

IC351

C862

C869

C864

C211

75

80

85

90

95

5

1

C124

C207

C353

5

4

C505

C506

R207

L204

C212

606570

15 20

C123

R103

10

R891

D871

13

R872

C773

55

C357

R101

14

8

R727

C731

R892

C715

C735

C727

C736

Q891

Q711

45

IC871

L710

L500

C511

1

5

10

12 13

51

45

40

35

30

25

C121

C161

C100

R717

20

15

IC501

L201

C201

50

1

6 7

26

R161

Q101

R154

12 13

L100

C165

R726

24

L171

R728

Q721

L703

L202

C726

R725

L702

C508

C507

C202

IC202

C171

R500

C172

L704

C500

C725

J701

OPTICAL/

LINE IN

5 6 7

8

24

19 18

12

MAIN PWB-A (BOTTOM VIEW)

: Through-hole where the top, bottom and +B patterns are connected. : Through-hole where the top, bottom and hround patterns are connected. : Through-hole where the top and bottom patterns are connected.

H

, : Through-hole connected to any items other than the ground in 6-layer PWB and the +B pattern.

• The numbers 1 to 18 are waveform numbers shown in page 40.

1

23456

Figure 36 WIRING OF P.W.BOARD (3/5)

– 36 –

L712

R724

TP705

TP701

R723

TP712

18

C723

C721

C714

R713

SW401 EJECT

17 16

TP711

R714

R716

R715

C724

C722

R729

TP704

C713

TP707

TP200

TP110

TP114

TP115

L711

TP118

TP101

TP487

L713

TP703

HOLD

SW402

TP144

C103 C102

C104

TP102

TP105

24

R730

C734

TP708

TP204

TP406

R406

C112

TP116

1

12

TP713

C733

1

TP714

TP500

R405

C111

R105

TP103

R703

IC701

TP702

48

10

13

1

D493

L458

L714

TP772

C703

510

R720 R719

R711

C711

C509

C510 R502

TP211

C110

5

R712

R501

C504

R407

R408

C109

TP139

1520

C712

TP405

C107

4045

R702

13

12

C501

TP203

C702

C701

R701

C758

C503

C106

37

35

30

IC101

20

15

TP117

TP151

TP145

TP106

TP111

TP108

CN101

PICKUP FLEXIBLE PWB

P38 1 - C

TP728

R754

C502

1

3

TP212

TP206

R106

25

24

TP721

L457

R753

C755

24

TP709

1

R761

C761

C431

R431

D431

IC404

36

TP100

TP130

TP727

R769

5

4

R423

C130

TP415

TP121

TP729

D491

L453

C752

R764

R768

C766

L751

20

IC703

5

R770

C756

R762

R757

C759

C762

R813

C760

4

1 23

IC431

TP202

C401

TP458

75

76

TP809

80

85

90

95

TP401

100

TP131

1

TP133

TP132

TP207

TP122

22

TP120

TP722

L452

C751

L454

TP723

TP724

R766

C753

13

C754

12

R843

1

IC842

4

TP412

TP400

Q841

TP466

R846

C451

R763

C765

TP453

D843

R819

C842

R811

8

R855

R854

5

R853

XL401

TP403

6065

R767

R765

15

R756

C813

TP457

L752

10

C757

R844

70

IC401

5101520

R415

R413

R414

TP655

R412

4

TP409

TP410

TP205

TP411

IC402

5

TP109

2

TP726

L456

TP725

R492

R845

TP402

TP771

1

8

9

R824 R826

R812

C853

TP408

4

D492

R841

R849

R848

C822

55

TP407

TP351

R907

5

TP414

D841

R422

TP404

R403

TP201

R411

C491

D494

IC841

R821

R823

C859

R858

C851

TP463

45

40

35

30

25

R404

C354

TP663

P38 6 - H

LCD

TP802

R815

R816

C801

R831

IC850

TP462

18

TP651

TP610

R908

TP119

TP485

1

R402

R401

5

C800

R482

CN482

TP483

12

7

C854

12

7

TP461

TP464

TP465

R921

R922

IC901

15

R909

MECHANISM FLEXIBLE PWB

D842

51

R832

R857

C905

3

1

C841

R851 R852

26

C908

R814

R822

C821

R860

R459

TP468

R847

TP666

R902

TP661

L491

TP807

Q830

Q842

C833

1

6

D851

6

50

TP467

TP208

TP210

TP416

TP665

C910

TP413

1

R818

TP209

TP417

R901

TP801

IC820

R460

TP652

1

C907

C906

R904

10

C909

P38 6 - C

MAIN PWB-A (TOP VIEW)

MD-MS722/C/W/MS721W

TP805

TP484

BATTERY,–

KEY SWITCH FLEXIBLE UNIT

TP454

1

15

14

11

TP664

10 13

TP658

TP659

BATTERY,+

(219)

(221)

EXT. BATTERY

(230)

P38 4 - E, G

C827

C830

C855

C858

C831

CN451

CN601

C911

20

11

C902

C481 R481

17

TP481

TP657

C828

R859

R903

R829

TP459

TP812

TP456

TP656

R905

R906

TP482

TP804

TP810

TP811

1

16

TP654

TP601 C903

TP901

TP808

C802

TP455

R842

TP602

TP803

TP451

TP452

TP662

TP660

TP653

7

8 9 10 11 12

Figure 37 WIRING OF P.W.BOARD (4/5)

– 37 –

MD-MS722/C/WMS721W

OPTICAL PICKUP UNIT (15)

A

B

C

CN101

TO MAIN PWB

P35,37 8 - H

D

M902

SLED MOTOR

M901

SPINDLE MOTOR

MECHANISM FLEXIBLE PWB UNIT (8)

SW901 SW902

CN601

TO MAIN PWB

P33 11 - H

PH901

M903

LIFT MOTOR

MAGNETIC HEAD

FLEXIBLE PWB (23)

MD-MS722/C/W

E

KEY FLEXIBLE PWB ASS'Y (248)

CN451

TO MAIN PWB

P35,37 12 - D

F

MAGNETIC HEAD

(32)

LCD (249)

MD-MS721W

G

KEY FLEXIBLE PWB ASS'Y (248)

CN451

TO MAIN PWB P35,37 12 - D

H

CN482

TO MAIN PWB

P35,37 11 - A

1

23456

Figure 36 WIRING OF P.W.BOARD (5/5)

– 38 –

NOTES ON SCHEMATIC DIAGRAM

• Resistor: To differentiate the units of resistors, such symbol as K and M are used: the symbol K means 1000 ohm and the symbol M means 1000 kohm and the resistor without any symbol is ohm-type resistor. Besides, the one with “Fusible” is a fuse type.

• Capacitor: To indicate the unit of capacitor, a symbol P is used: this symbol P means micro-micro-farad and the unit of the capacitor without such a symbol is microfarad. As to electrolytic capacitor, the expression “capacitance/withstand voltage” is used. (CH), (TH), (RH), (UJ): Temperature compensation (ML): Mylar type

MD-MS722/C/W/MS721W

• The indicated voltage in each section is the one measured by Digital Multimeter between such a section and the chassis with no signal given.

• Parts marked with “ ” ( ) are important for maintaining the safety of the set. Be sure to replace these parts with specified ones for maintaining the safety and performance of the set.

REF. NO

SW401 EJECT OFF—ON SW402 HOLD OFF—ON SW901 DISC IN OFF—ON SW902 DISC PROTECT OFF—ON

DESCRIPTION

POSITION

B

(G)

(3)

E

(S)

1

2SA17457 2SC4213 B 2SK2909 2SK2911 DTA114 YE DTA144 TE DTC144 TE RN1444 A

TOP VIEW

TOP

VIEW

C

(D)

(2)

TOP VIEW

1SS361

TOP VIEW

015Z5.1Y 015AZ7.5Y 1SS368 RB521S30

TOP VIEW

F1J2F

SB0209CP 1SS372

Figure 39 TYPES OF TRANSISTOR AND DIODE

– 39 –

F10J2E RB491D SB10015C

MD-MS722/C/WMS721W

ENV

1994 / 12 / 16 01:03:40

=Filter= =Offset= =Record Length= Smoothiing : OFF BW : FULL

CH1 : 0.00V CH2 : 0.00V

Main : 10K

Zoom : 10K CH3 : 0.000V CH4 : 0.00V

=Trigger= Mode : NORMAL Type : EDGE CH2 Detay : 0.0ns Hold OFF : MINIMUM

T

TP201 (EFM)

TP210

(TEOUT)

TP209

(TOTAL)

Stopped

CH1=1V

DC 10:1

CH3=500mV

DC 10:1 (2ms/div)

2ms/div

CH2=2V

DC 10:1

T

1

2

9

10 11

1994 / 12 / 16 01:23:16

=Filter=

=Tracel= P-P 1.280V

=Offset= =Record Length= Smoothiing : OFF BW : FULL

CH1 : 0.000V CH2 : 0.00V

Main : 1K

Zoom : 1K CH3 : 0.00V CH4 : 0.00V

=Trigger= Mode : AUTO Type : EDGE CH1 Detay : 0.0ns Hold OFF : MINIMUM

T

TP201 (EFM)

Stopped

CH1=2V

DC 10:1 (500ms/div)

500ms/div

1

MORM:200MS/s

9

1994 / 12 / 15 08:39:46

=Filter= =Offset= =Record Length= Smoothiing : OFF BW : FULL

CH1 : 0.00V CH2 : 0.00V

Main : 10K

Zoom : 10K CH3 : 0.00V CH4 : 0.0V

=Trigger= Mode : AUTO Type : EDGE CH1 Detay : 0.0ns Hold OFF : MINIMUM

T

TP210

(TEOUT)

TP657

(SL+)

TP656

(SL-)

Stopped

CH1=2V

DC 10:1

CH3=2V

DC 10:1 (1s/div)

1s/div

CH2=2V

DC 10:1

1

3

2

NORM:1kS/s

10

14 15

CH2=500mV

DC 10:1

CH1 : 0.00V CH2 : 0.000V CH3 : 0.00V CH4 : 0.00V

T

CH3=5V

DC 10:1

Main : 10K

Zoom : 10K

1994 / 12 / 15 22:54:19

CH4=2V

DC 10:1 (50ms/div)

Mode : NORMAL Type : EDGE CH4 Detay : 0.0ns Hold OFF : MINIMUM

Stopped

CH1=1mV

DC 10:1

TP208

(FEOUT)

1

2

3 4

1

TP122

(F+)

2

CK205

3

(SENSE)

CK204

T

(FOK)

4

=Filter= =Offset= =Record Length= Smoothiing : OFF BW : FULL

WAVEFORMS OF MD CIRCUIT

50ms/div

NORM:200kS / s

=Trigger=

Stopped

CH1=2V

DC 10:1

SDTi

5

1

SCLK

6

2

T

LRCK

7

3

MCLK

8

4

=Filter= =Offset= =Record Length= Smoothiing : OFF BW : FULL

CH2=2V

DC 10:1

CH1 : 0.00V CH2 : 0.00V CH3 : 0.00V CH4 : 0.00V

T

CH3=2V

DC 10:1

Main : 5K Zoom : 5K

1994 / 12 / 16 00:24:17

CH4=2V

DC 10:1 (50us/div)

Mode : AUTO Type : EDGE CH3 Detay : 0.0ns Hold OFF : MINIMUM

50us/div

NORM:100MS / s

=Trigger=

10 11

CH2=2V

DC 10:1

T

1994 / 12 / 15 23:31:21

50ms/div

ENV

1

10 14

12

13

Stopped

CH1=2V

DC 10:1 (50ms/div)

T

SPDRR

1

TP601

2

(VM)

15

=Filter= =Offset= =Record Length=

Smoothiing : OFF

CH1 : 0.00V

BW : FULL

CH2 : 0.00V CH3 : 0.00V CH4 : 0.00V

Stopped

CH1=2V

CH2=2V

DC 10:1 (2ms/div)

TP201

9

(EFM)

2

T

TP210

(TEOUT)

1

TP209

(TOTAL)

DC 10:1

T

Main : 10K Zoom : 10K

CH3=500mV

DC 10:1

=Trigger= Mode : NORMAL Type : EDGE CH1 Detay : 0.0ns Hold OFF : MINIMUM

1994 / 12 / 15 08:57:26

2ms/div

ENV

1 10 12

13

16

17

=Filter= =Offset= =Record Length=

Smoothiing : OFF

CH1 : 0.00V

BW : FULL

CH2 : 0.00V CH3 : 0.000V CH4 : 0.0V

Stopped

CH1=500mV

DC 10:1 (20us/div)

T

CK109

(HPFO)

1

CK108 (WBO)

2

CH2=2V

DC 10:1

Main : 10K Zoom : 10K

=Trigger= Mode : NORMAL Type : EDGE CH1 Detay : 0.0ns Hold OFF : MINIMUM

1994 / 12 / 15 09:10:03

20us/div

ENV

9

10

18

=Filter= =Offset= =Record Length=

Smoothiing : OFF

CH1 : 0.000V

BW : FULL

CH2 : 0.00V CH3 : 0.000V CH4 : 0.0V

Main : 4K Zoom : 4K

=Trigger= Mode : NORMAL Type : EDGE CH1 Detay : 0.0ns Hold OFF : MINIMUM

Stopped

CH1=2V

DC 10:1

TP208

(FEOUT)

1

T

TP210

(TEOUT)

2

TP657

3

(SL+)

TP656

4

(SL-)

BandwidthONSmooth

FULL 20MHz

=Filter= =Offset= =Record Length=

Smoothiing : OFF

CH1 : 0.00V

BW : FULL

CH2 : 0.00V CH3 : 0.00V CH4 : 0.00V

Stopped

CH1=2V

CH2=2V

DC 10:1

T

TP208

1

(FEOUT)

TP210

2

(TEOUT)

3

SPDRR

TP601

4

(VM)

=Filter= =Offset= =Record Length=

Smoothiing : OFF

CH1 : 0.00V

BW : FULL

CH2 : 0.00V CH3 : 0.00V CH4 : 0.00V

Stopped

CH2=2V

CH1=2V

DC 10:1

TP201 (EFM)

1

TP210

T

(TEOUT)

2

3

TP121

4

(T-)

=Filter= =Offset= =Record Length=

Smoothiing : OFF

CH1 : 0.00V

BW : FULL

CH2 : 0.00V CH3 : 0.00V CH4 : 0.00V

CH2=2V

DC 10:1

OFF

DC 10:1

CH3=2V

DC 10:1

Main : 10K Zoom : 10K

CH3=2V

DC 10:1

Main : 10K Zoom : 10K

T

CH3=1V

DC 10:1

Main : 10K Zoom : 10K

1994 / 12 / 18 09:26:46

CH4=2V

DC 10:1 (1s/div)

=Trigger= Mode : AUTO Type : EDGE CH2 Detay : 0.0ns Hold OFF : MINIMUM

1994 / 12 / 15 09:58:45

CH4=2V

DC 10:1 (1s/div)

=Trigger= Mode : AUTO Type : EDGE CH1 Detay : 0.0ns Hold OFF : MINIMUM

1994 / 12 / 15 21:54:52

CH4=1V

500us/div

DC 10:1 (500us/div)

=Trigger=

Mode : NORMAL Type : EDGE CH2 Detay : 0.0ns Hold OFF : MINIMUM

1s/div

ENV

1s/div

ENV

For TP208, TP209, and TP210, use the specific LPF, and observe the waveform.

When watching the EEM monitor (TP201) Set MSL from 00H to 80H with EEPROM control setting. After completion restore 00H.

Measurement

10K

TP

1000P

– 40 –

MD-MS722/C/W/MS721W

TROUBLESHOOTING

It is advisable to use the TEST mode (refer to Error Data Display Mode, P13) indicating the causes of troubles before starting repair. Causes of operation errors (up to 10 errors) are recorded as error codes. This information is useful for repair.

When does not function

When the CD section does not operate When the objective lens of the optical pickup is dirty,this section may not operate.Clean the objective lens,and check the playback operation.When this section does not operate even after the above step is taken,check the following items. Remove the cabinet and follow the troubleshooting instructions. "Track skipping and/or no TOC(Table Of Contents) may be caused by build up of dust other foreign matter on the laser pickup lens. Before attempting any adjustment make certain that the lens is clean. If not, clean it as mentioned below."

Turn the power off. Gently clean the lens with a lens cleaning tissue and a small amount of isopropyl alcohol. Do not touch the lens with the bare hand.

Is the power supply turned on when the remote control button or main unit button is pressed?

Yes

Does the display operate normally?

Yes

Is playback state set?

Yes

Is audio output normal?

Yes

Is recording/playback operation normal?

• Power is not turned on when the / button is pressed.

Is power turned on when the remote control button is pressed?

No

Perform the check stated in item "Power is not turned on when the PLAY button is pressed".

Perform the check stated in item "Abnormal display".

Perform the check stated in item "Playback state connot be set".

Perform the check stated in item "Audio playback circuit".

Perform the check stated in item "Recording/playback operation".

No

Is operation normal when the main body button is pressed?

No

Is the pin 55 of IC401 in H state?

Yes

Are IC401 pin 3 set to "L"?

Yes

Does the pin 66 of IC401 oscillate?

Yes

No

– 41 –

Check the periphery of remote controller and main unit headphone terminal (J703) and IC401.

Check the position of Hold switch.

Check the DISC IN (SW901) switch of mechanism PWB.

Replace XL401.

MD-MS722/C/WMS721W

• Abnormal display

Is waveform output from CNS 482 pins 1 to 3? Are the pin7 (VCC) and pin 6 (GND) normal?

Yes

Check for pattern breakage of flexible PWB, check for defects of display microcomputer (replace the display unit).

Is waveform output from IC 401 pins 45 to 47?

No

Yes

Check between IC401 and CNS482.

• Playback state cannot be set

When it has been ascertained that the address up to cluster address is normal in the TEST mode. Is initialization performed normally in case of high- reflection

disc playback?

No

Is the lead-in photointerrupter set to OFF when the optical pickup moves to the innermost periphery in NORMAL mode? (Is TP660 in H level?).

Yes

No

Does the playback time display advance?

Yes

Check IC201 and IC202 connection line.

Check the lead-in photointerrupter, mechanical flex PWB soldering and CNS601 connection.

No

Check the periphery of IC401.

No

Ia an attempt to repeat repeatedly the TOC part performed on the low-reflection disc?

Yes

Position check in INNER mode

No

Replace the disc.

• Audio playback clrcult

Although the playback time display is acting., no sound is given during playback in the normal mode. Is audio wavefrom output from IC501 pins 19 and 20?

Yes

Is audio wavefrom output from IC703 pins 18 and 19.

Yes

Is audio wavefrom output from J703 pins 3 and 4.

Yes

Check headphones jack,and periphery of headphone.

No

Check IC201 pins 70 to 72, pin 74 and IC501 pins 9, 10, 11, 15

Check the pins 5 and 6 of IC703.

Check whether there is defective solder joint of audio signal line between IC703 and J703

– 42 –

• The spindle motor fails to run.Does the head move

MD-MS722/C/W/MS721W

Does the waveform appear on the IC201 pins 24 and 25 after TEST mode AUTO2 completion and in this state?

Yes

Does waveform appear on the IC601 pin 13?

Yes

Does waveform appear on IC901 pins 1, 19 and 20?

Yes

Replace the spindle motor.

Check the IC201 periphery.

No

Replace. IC601

No

L608, IC201, IC901, CN601 and flex, etc. soldering check

No

• Recording/playback operation

Insert a low reflection disc, and ascertain audio output by normal playback, and then set TEST REC mode.

Does the head move down, failing to start record even when the continuous record mode is set after address?

No

Does the RF waveform of TP201 appear when playback is

No

Yes

Check voltage of pins 52 and 53 of IC201, pins 2, 4, 7, and 9 of

Yes

IC651, pins 3 and 14 of CNS601. Check whether disc is recordinhibited.

Does level of pins 34 of IC401 and pin 17 of IC101 change depending on record and playback?

Yes

Is RF pattern output from IC201 pin 50?

Yes

Check whether there is any damage in IC101, periphery of laser diode.

Check for defects of IC351 in head drive flexible PWB, Q351 to 354, head, flexible PWB.

Is audio monitor output given in normal mode LINE IN record?

No

Is waveform obtained on IC501 pins 3 and 6?

No

Is audio waveform observed on the pins 18 and 19 of IC703?

Yes

Check periphery of IC401 and IC101.

No

Check for soldering failure of IC201 .

No

Check waveforms of pins 9 to 12 of IC501, pins 70 to 73 of

Yes

IC201.

Check whether the pin 7 of IC501 and the pin 59 of IC201 are in H state.

Yes

Does voltage on the IC701 pins 13 to 15 change in case of

No

record VOLUME UP/DWN?

Check whether input waveform is observed on the pins 5 and 6 of IC703.

– 43 –

MD-MS722/C/WMS721W

FUNCTION TABLE OF IC

IC401 RH-iX2772AF03(IX2772AF):System Microcomputer (1/2)

Pin No.

1 P12/TCLKA CIN Input Track cross signal/focus drive detection 2 P13 SPIN Output Spindle motor FG pulse detection input 3 P14 DISCIN Input Disc insertion detection input 4 P15 DISCCPR Input Disc record inhibition switch input 5* TIOCA2 SPWDS Input Spindle motor FG pulse width detection 6 P17 PDCNT Output Inner detection PD current control output 7 Vss VSS — Ground potential 8 TxD0 RMDAT Output Remote control indication data output 9 TxD1 DSPDAT Output Unit indication data output 10 P32 DSPSTB Output Unit indication strobe output 11* P33 P33 Output Spare 12* SCK0 SCk0 Output Serial IO clock output (not used) 13 SCK1 DSPSCK Output Unit indication data clock output 14 PE0 _EPCS Output EEPROM chip selection output 15 PE1 EEPD Input/Output EEPROM serial data input/output 16 PE2 EEPK Output EEPROM serial clock output 17 PE3 PHOLD Output System power ON holding output when battery is used 18 Vss VSS — Ground potential 19 PE4 PCNT1 Outout Vref supply control output of power IC 20 PE5 SYRS Output System LSI register selection output 21 PE6 _SYRD Output System LSI read enable output 22 PE7 _SYWR Output System LSI write enable output 23-30 PD0-PD7 SYD0-SYD7 Input/Output System LSI parallel data bus 31 Vss VSS — Ground potential 32 PC0 PCLAT Output Record audio IC data latch output 33 PC1 _MCPGI Input Microphone plug insertion detection input 34 PC2 _INPGI Input Line/digital plug insertion detection 35 PC3 INPGCK Input Line/digital plug type detection 36 PC4 RCPCNT Output Record circuit power control output 37 PC5 TEST1 Input Test mode setting input 1 38 PC6 TEST0 Input Test mode setting input 0 39 PC7 JPNP Input Kana conversion/Kana input existence/nonexistence discrimination 40 Vcc VCC — Positive power supply 41* PB0 PB0 Output Spare 42 PB1 _ELONH Output Remote control EL'H' lighting control output 43* PB2 PB2 Output Spare 44 PB3 LDON Output P.U. laser ON/OFF control output 45 PB4 OPICGA Output P.U. detection sensitivity selection output 46 PB5 RFLAT Output RF amplifier IC data latch output 47 PB6 RACLK Output RF/Audio IC data clock output 48 PB7 _ELONL Input/Output Remote control EL 'L' lighting control output 49 Vss VSS — Ground potential 50 PA0 RADAT Output RF/Audio IC serial data output 51 PA1 PBLAT Output Audio IC data latch output 52 PA2 REC Input Unit REC key operation detection input 53 PA3 PBOPON Output Audio IC output stage control output 54 P20 RPLAY Input Remote control PLAY key operation detection input 55 P21 _KHOLD Input Unit key hold switch input 56 TIOCC3 BUZOUT Output Beep sound pulse output 57 MD0 MD0 Input Operation mode selection input 0

Input/Output

In this unit, the terminal with asterisk mark (*) is (open) terminal which is not connected to the outside.

FunctionPort Name Terminal Name

– 44 –

MD-MS722/C/W/MS721W

IC401 RH-iX2772AF03(IX2772AF):System Microcomputer (2/2)

Pin No.

58 MD1 MD1 Input Operation mode selection input 1 59 P23 INNSW Input Mechanism inner SW position detection input 60* WDTOVF WDTOVF Output Watch dog timer (not used) 61 MD2 MD2 Input Operation mode selection input 2 62 RES _RESET Input Microcomputer hard reset input 63 NMI _NMI Input Nonmaskable interruption (not used) 64 STBY _STBY Input Microcomputer standby input (not used) 65 Vcc VCC — Positive power supply 66 XTAL XTAL — Crystal connection terminal 67 EXTAL EXTAL — Crystal connection terminal 68 Vss VSS — Ground potential 69 PF7 _STOP Input Unit STOP key operation detection input 70 PF6 PLAY Input Unit PLAY key operation detection input 71 PF5 EMPHO Output Audio emphasis control output 0 72 PF4 JOG0 Input Jog encoder input 0 73 PF3 JOG1 Input Jog encoder input 1 74* PF2 PF2 Output Spare 75* PF1/IRQ1 _IRQ1 Output Software standby return request 76 IRQ0 _DINT Input System LSI interruption request input 77 AVcc AVCC — A/D and D/A converter positive power supply 78 Vref VREF — A/D and D/A converter reference voltage 79 AN0 PLVDRY Input Dry battery voltage detection input 80 AN1 PLVDCI Input DC jack voltage detection input 81 AN2 PLVINN Input Lithium battery voltage detection input 82 AN3 RKEY Input Remote control key operation detection input 83 AN4 HKEY1 Input Unit key operation detection input 1 84 AN5 HKEY2 Input Unit key operation detection input 2 85 AN6 TEMP Input Ambient temperature detection input 86 DA1 LDVAR Output P.U. laser power setting output 87 AVss AVSS — A/D and D/A converter ground potential 88 Vss VSS — Ground potential 89 P24 START Input Disc insertion start-up detection input 90 TIOCB4 MCMON Output Internal operation status monitor output 91* P26 P91 Output Spare 92 P27 DCNT1M Output Mechanism driver enable output 93 PG0 SENSE Input System LSI servo sense input 94 PG1 _FOK Input Focus OK signal input 95 PG2 _XRST Output System LSI hard reset output 96 PG3 CKSTP Output Microcomputer sleeve operation monitor output 97 PG4 EJSW Input Ejection lever operation detection input 98 Vcc VCC — Positive power supply 99 P10 PCNT2 Output Vcc supply control output of power IC 100 P11 HDON Output Recording head current control output

Input/Output

In this unit, the terminal with asterisk mark (*) is (open) terminal which is not connected to the outside.

FunctionPort Name Terminal Name

– 45 –

MD-MS722/C/WMS721W

— M E M O —

– 46 –

PARTS GUIDE

MD-MS722/C/W/MS721W

MODEL

“HOW TO ORDER REPLACEMENT PARTS”

To have your order filled promptly and correctly, please furnish the following information.

1. MODEL NUMBER 2. REF. No.

3. PART NO. 4. DESCRIPTION

MARK: SPARE PARTS-DELIVERY SECTION

MD-MS722 MD-MS722C MD-MS722W MD-MS721W(BL) MD-MS721W(S)

For U.S.A. only

Contact your nearest SHARP Parts Distributor to order.

For location of SHARP Parts Distributor, Please call Toll-Free; 1-800-BE-SHARP

Explanation of capacitors/resistors parts codes

Capacitors

VCC ....................... Ceramic type

VCK........................ Ceramic type

VCT........................ Semiconductor type

VC • • MF ............... Cylindrical type (without lead wire)

VC • • MN............... Cylindrical type (without lead wire)

VC • • TV................ Square type (without lead wire)

VC • • TQ ............... Square type (without lead wire)

VC • • CY ............... Square type (without lead wire)

VC • • CZ ............... Square type (without lead wire)

VC • • • • • • • • • J .. The 13th character represents capacity difference.

("J" ±5%, "K" ±10%, "M" ±20%, "N" ±30%, "C" ±0.25 pF, "D" ±0.5 pF, "Z" +80-20%.)

If there are no indications for the electrolytic capacitors, error is ±20%.

Resistors

VRD ....................... Carbon-film type

VRS........................ Carbon-film type

VRN ....................... Metal-film type

VR • • MF ............... Cylindrical type (without lead wire)

VR • • MN............... Cylindrical type (without lead wire)

VR • • TV................ Square type (without lead wire)

VR • • TQ ............... Square type (without lead wire)

VR • • CY ............... Square type (without lead wire)

VR • • CZ ............... Square type (without lead wire)

VR • • • • • • • • • J .. The 13th character represents error.

("J" ±5%, "F" ±1%, "D" ±0.5%.)

If there are no indications for other parts, the resistors are ±5% carbon-film type.

NOTE:

Parts marked with “ ” are important for maintaining the safety of the set. Be sure to replace parts with specified ones for maintaining the safety and performance of the set.

– 47 –

MD-MS722/C/W/MS721W

PARTS CODE NO. PARTS CODE

PRICE

RANK

DESCRIPTIONNO.

INTEGRATED CIRCUITS

IC101 VHIIR3R55//-1 J AQ RF Signal,Processor,IR3R55 IC200 VHI62FP2002-1 J AE 2V Regulator,62FP2002 IC201 VHILR37811/-1 J BB ENDEC LSI,LR37811 IC202 RH-IX2723AFZZ J BC 16Bit D-RAM,IX2723AF IC351 VHI74ACT02T-1 J AE Head Driver,74ACT02T IC401 RH-IX2772AF03 J AW System Microcomputer,

IC401 RH-IX2772AF04 J AW System Microcomputer,

IC402 VHIS29L294A-1 J AH EE-PROM,S29L294A IC404 VHI7SH00FU/-1 J AE NAND Gate,7SH00FU IC431 VHIS80820LN-1 J AD Reset,S80820LN IC501 VHIAK4519VF-1 J AQ AD/DA Converter,AK4519VF IC601 VHI17A39TD/-1 J AP PWM Driver,17A39TD IC651 VHILB1930M/-1 J AH Motor Driver,LB1930M IC701 VHIIR3R54N/-1 J AQ Audio Amp.,IR3R54N IC703 VHIIR3R54N/-1 J AQ Audio Amp.,IR3R54N IC771 VHITK71225M-1 J AE 2.5V Regulator,TK71225M IC801 VHIHN1C03FU-1 J AD Constant Current Drive,

IC802 VHINDH8304P-1 J AH Power Select Charge Drive, IC820 VHIIR3M09N/-1 J AL Power Drive,IR3M09N

IC821 VHICPH3303/-1 J AE P-ch MOS FET,CPH3303 IC841 VHIXC62HS02-1 J AE Power Supply Microcomputer,

IC842 VHI7WH123FU-1 J AF C-MOS Logic,7WH123FU IC850 VHIIR3M09N/-1 J AL Power Drive,IR3M09N IC851 VHICPH3403/-1 J AE N-ch MOS FET,CPH3403 IC871 VHITK71345M-1 J AE 4.5V Regulator

IC901 VHIBA6965AF-1 J AM 3-Phase Brush Leess Driver,

IX2772AF (Only Serial No.811ЧЧЧЧЧ)

IX2772AF (From Serial No.812ЧЧЧЧЧ)

HN1C03FU NDH8304P

XC62HS02

(ON/OFF),TK71345M BA6965AF

TRANSISTORS

Q101 VS2SA17457/-1 J AB Silicon,PNP,2SA17457 Q351 VS2SK2909//-1 J AE FET,2SK2909 Q352 VS2SK2911//-1 J AE FET,2SK2911 Q353 VS2SK2909//-1 J AE FET,2SK2909 Q354 VS2SK2911//-1 J AE FET,2SK2911 Q711 VSRN1444A//-1 J AC Digital,NPN,RN1444 A Q721 VS2SC4213B/-1 J AC Silicon,NPN,2SC4213 B Q830 VSDTC144TE/-1 J AC Digital,NPN,DTC144 TE Q841 VSDTA144TE/-1 J AB Digital,PNP,DTA144 TE Q842 VSDTA114YE/-1 J AC Digital,PNP,DTA114 YE Q891,892 VS2SA17457/-1 J AB Silicon,PNP,2SA17457

DIODES

D351,352 VHDSB0209CP-1 J AC Silicon,SB0209CP D431 VHD1SS361//-1 J AB Silicon,1SS361 D491 VHE015Z5R1Y-1 J AD Zener,5.1V,015Z5.1Y D492 VHE15AZ7R5Y-1 J AC Zener,7.5V,15AZ7.5Y D493 VHE015Z5R1Y-1 J AD Zener,5.1V,015Z5.1Y D494 VHE15AZ7R5Y-1 J AC Zener,7.5V,15AZ7.5Y D800 VHD1SS368//-1 J AC Silicon,1SS368 D801 VHDSB10015C-1 J AD Silicon,SB10015C D802 VHE015Z5R1Y-1 J AD Zener,5.1V,015Z5.1Y D821 VHDF10J2E//-1 J AC Silicon,F10J2E D836 VHD1SS372//-1 J AD Silicon,1SS372 D841~843 VHD1SS361//-1 J AB Silicon,1SS361 D851 VHDRB521S30-1 J AC Silicon,RB521S30 D852 VHDF1J2F///-1 J AE Silicon,F1J2F D861 VHDF10J2E//-1 J AC Silicon,F10J2E D871 VHDRB521S30-1 J AC Silicon,RB521S30 PH901 VHPGP1S93K/-1 J AF Phote Interrupter,GP1S93K

COILS

L100 VPBNN100M0000 J AC 10 µH L171 RCILC0356AFZZ J AC 10 µH L201 VPCBM220K0000 J AC 22 µH L202 VPCBM101K0000 J AC 100 µH L204 RCILC0353AFZZ J AB Tip Solid Induction,100mA L452 RCILC0352AFZZ J AB Tip Impeder,150mA L453,454 RCILC0353AFZZ J AB Tip Solid Induction,100mA L456~458 RCILC0353AFZZ J AB Tip Solid Induction,100mA

PRICE

RANK

L491 VPBNN4R7M0000 J AC 4.7 µH L500 VPCBM220K0000 J AC 22 µH L600 RCILC0331AFZZ J AC 2.2 µH,Choke L601~604 RCILC0358AFZZ J AC 4.7 µH,Choke L608 RCILC0359AFZZ J AC 100 µH,Choke L609,610 RCILC0358AFZZ J AC 4.7 µH,Choke L651 VPBNNR47M0000 J AC 0.47 µH L702,703 RCILC0353AFZZ J AB Tip Solid Induction,100mA L704 RCILC0352AFZZ J AB Tip Impeder,150mA L710 VPBNNR47M0000 J AC 0.47 µH L711 RCILC0352AFZZ J AB Tip Impeder,150mA L712~714 RCILC0353AFZZ J AB Tip Solid Induction,100mA L751,752 RCILC0344AFZZ J AC 47 µH,Choke L771 RCILC0358AFZZ J AC 4.7 µH,Choke L821 RCILC0333AFZZ J AC 10 µH,Choke L851 RCILC0332AFZZ J AC 4.7 µH,Choke L852 RCILC0333AFZZ J AC 10 µH,Choke L861 RCILC0332AFZZ J AC 4.7 µH,Choke L862 RCILC0358AFZZ J AC 4.7 µH,Choke L871 VPBNNR47M0000 J AC 0.47 µH

DESCRIPTION

VIBRATORS

XL201 RCRSC0023AFZZ J AK Crystal,33.8688 MHz XL401 RCRM-0199AFZZ J AD Ceramic,4.194 MHz

CAPACITORS

C100 VCSAFA0JJ106M J AD 10 µF,6.3V,Electrolytic, C102,103 RC-KZ1183AFZZ J AC 1 µF,10V,Electrolytic

C104 VCKYTV1EB273K J AB 0.027 µF,25V C106 RC-KZ1204AFZZ J AB 0.22 µF,10V,Electrolytic C107 VCKYTV1EB123K J AB 0.012 µF,25V C109 RC-KZ1184AFZZ J AC 1 µF,16V,Electrolytic C110 RC-KZ1204AFZZ J AB 0.22 µF,10V,Electrolytic C111 VCKYCY1HB332K J AA 0.0033 µF,50V C112 VCKYCY1CB333K J AA 0.033 µF,16V C121,122 VCCCCY1HH271J J AA 270 pF (CH),50V C123,124 VCCSCY1HL391J J AA 390 pF,50V C130 VCKYCY1CB104K J AB 0.1 µF,16V C161 RC-KZ1183AFZZ J AC 1 µF,10V,Electrolytic C165 VCKYCY1CB333K J AA 0.033 µF,16V C171,172 VCSAFB0JJ336M J AE 33 µF,6.3V,Electrolytic,

C200 RC-KZ1183AFZZ J AC 1 µF,10V,Electrolytic C201 RC-KZ1184AFZZ J AC 1 µF,16V,Electrolytic C202 VCSATE0JJ476M J AD 47 µF,6.3V,Electrolytic,

C203 VCKYCY1CB104K J AB 0.1 µF,16V C204 VCKYCY1AB474K J AC 0.47 µF,10V C205 VCKYCY1CB104K J AB 0.1 µF,16V C207 VCKYCY1CB104K J AB 0.1 µF,16V C211 VCCCCY1HH5R0C J AA 5 pF (CH),50V C212 VCCCCY1HH8R0D J AA 8 pF (CH),50V C351 VCCCCY1HH470J J AA 47 pF (CH),50V C353 VCSAFA0JJ106M J AD 10 µF,6.3V,Electrolytic,

C354 VCKYCY1CB104K J AB 0.1 µF,16V C357 VCKYCY1CB104K J AB 0.1 µF,16V C361 VCKYTV1HB393K J AB 0.039 µF,50V C401 VCKYCY1CB104K J AB 0.1 µF,16V C431 RC-KZ1206AFZZ J AC 0.47 µF,10V C442 VSCAPR0JJ106M J 10 µF,6.3V,Electrolytic,

C451 VCKYCY1HB102K J AA 0.001 µF,50V C481 VCKYCY1CB104K J AB 0.1 µF,16V C491 RC-KZ1182AFZZ J AB 0.1 µF,16V,Electrolytic C500 VCSATA0JJ106M J AD 10 µF,6.3V,Electrolytic,

C501,502 VCKYCY1HB222K J AA 0.0022 µF,50V C503,504 VCSATA1AJ335M J AB 3.3 µF,10V,Electrolytic,

C505,506 VCKYCY1HB102K J AA 0.001 µF,50V C507 VCSATA0JJ106M J AD 10 µF,6.3V,Electrolytic,

C508 RC-KZ1183AFZZ J AC 1 µF,10V,Electrolytic C509,510 VCKYTV1CF225Z J AC 2.2 µF,16V C511 RC-KZ1183AFZZ J AC 1 µF,10V,Electrolytic C600 VCEAPW0JW226M J AC 22 µF,6.3V,Electrolytic C601~604 RC-KZ1183AFZZ J AC 1 µF,10V,Electrolytic

Tantalume

Tantalume (Only Serial No.81101800)

Tantalume

– 1 –

MD-MS722/C/W/MS721W

NO. PARTS CODE

C605 VCKYCY1CB104K J AB 0.1 µF,16V C608 RC-KZ1186AFZZ J AD 3.3 µF,10V,Electrolytic C609,610 RC-KZ1183AFZZ J AC 1 µF,10V,Electrolytic C622 VCKYCY1CB104K J AB 0.1 µF,16V C651 VCKYTV1CF105Z J AB 1 µF,16V C701,702 VCSATA0JJ106M J AD 10 µF,6.3V,Electrolytic,

C703 VCKYCY1EB103K J AA 0.01 µF,25V C711,712 VCCCCY1HH101J J AA 100 pF (CH),50V C713,714 RC-KZ1183AFZZ J AC 1 µF,10V,Electrolytic C715 VCKYCY1CB104K J AB 0.1 µF,16V C721,722 VCSATA1AJ335M J AB 3.3 µF,10V,Electrolytic,

C723,724 VCKYCY1HB102K J AA 0.001 µF,50V C725,726 VCSATA1AJ335M J AB 3.3 µF,10V,Electrolytic,

C727 VCKYTV1CF105Z J AB 1 µF,16V C731 VCKYCY1CF224Z J AB 0.22 µF,16V C733,734 RC-KZ1182AFZZ J A B 0.1 µF,16V,Electrolytic C735 VCKYCY1HB102K J AA 1000 pF,50V C736 VCCCCY1HH101J J AA 100 pF (CH),50V C751,752 VCKYTV1CB823K J AB 0.082 µF,16V C753,754 VCKYTV1CF105Z J AB 1 µF,16V C755 VCKYCY1EB103K J AA 0.01 µF,25V C756,757 VCKYTV1AB684K J AC 0.68 µF,10V C758 VCSATA1AJ335M J AB 3.3 µF,10V,Electrolytic,

C759,760 VCKYCY1CB273K J AA 0.027 µF,16V C761,762 VCKYCY0JB105K J AC 1 µF,6.3V C765,766 RC-KZ1204AFZZ J A B 0.22 µF,10V,Electrolytic C771,772 VCSATE0JJ476M J AD 47 µF,6.3V,Electrolytic,

C773 RC-KZ1204AFZZ J AB 0.22 µF,10V,Electrolytic C774 VCKYTV1CF105Z J AB 1 µF,16V C775 VCKYCY1EB103K J AA 0.01 µF,25V C800 RC-KZ1183AFZZ J AC 1 µF,10V,Electrolytic C801 VCKYCY1CB104K J AB 0.1 µF,16V C802 VCKYCY0JB105K J AC 1 µF,6.3V C803 VCKYCY1CB104K J AB 0.1 µF,16V C804 RC-KZ1183AFZZ J AC 1 µF,10V,Electrolytic C805 VCEAPW0JW107M J AD 100 µF,6.3V,Electrolytic C806 RC-KZ1186AFZZ J AD 3.3 µF,10V,Electrolytic C807 VCKYTV1EB103K J AA 0.01 µF,25V C808 RC-KZ1182AFZZ J AB 0.1 µF,16V,Electrolytic C813 VCKYCY1CB104K J AB 0.1 µF,16V C821 VCCCCY1HH680J J AA 68 pF (CH),50V C822 VCCCCY1HH8R0D J AA 8 pF (CH),50V C825 RC-KZ1186AFZZ J AD 3.3 µF,10V,Electrolytic C826 VCEAPW0GW227M J AD 220 µF,6.3V,Electrolytic

C826 VCEAPW0JW107M J AD 100 µF,6.3V,Electrolytic C827,828 VCCCCY1HH101J J AA 100 pF (CH),50V

C830,831 RC-KZ1183AFZZ J AC 1 µF,10V,Electrolytic C833 RC-KZ1205AFZZ J AB 0.33 µF,10V C836,837 VCKYCY1CB104K J AB 0.1 µF,16V C841 VCSAFA0JJ106M J AD 10 µF,6.3V,Electrolytic,

C841 VCSATA0JJ226M J 22 µF,6.3V,Electrolytic,

C842 RC-KZ1183AFZZ J AC 1 µF,10V,Electrolytic C851 VCCCCY1HH680J J AA 68 pF (CH),50V C853 VCCCCY1HH100D J AA 10 pF (CH),50V C854 VCKYCY1EB103K J AA 0.01 µF,25V C855 VCCCCY1HH101J J AA 100 pF (CH),50V C856 RC-KZ1184AFZZ J AC 1 µF,16V,Electrolytic C857 VCKYTQ0JB106K J AE 10 µF,6.3V C858 VCCCCY1HH101J J AA 100 pF (CH),50V C859 VCKYCY1HB102K J AA 0.001 µF,50V C861,862 RC-KZ1184AFZZ J AC 1 µF,16V,Electrolytic C864 VCSATE0JJ476M J AD 47 µF,6.3V,Electrolytic,

C868 VCKYTV1CF105Z J AB 1 µF,16V C869 VCSATE0JJ476M J AD 47 µF,6.3V,Electrolytic,

C871 RC-KZ1183AFZZ J AC 1 µF,10V,Electrolytic C872 VCSATA1AJ106M J AE 10 µF,10V,Electrolytic,Tantalume C902 VCKYCY1EB103K J AA 0.01 µF,25V C903 RC-KZ1186AFZZ J AD 3.3 µF,10V,Electrolytic C905~907 VCKYCY1HB222K J AA 0.0022 µF,50V

PRICE RANK

DESCRIPTION

Tantalume

(From Serial No.81201801) (Only Serial No.81101800)

Tantalume (From Serial No.81201801)

Tantalume (Only Serial No.81101800)

Tantalume

NO.

C908 RC-KZ1204AFZZ J AB 0.22 µF,10V,Electrolytic C909,910 VCKYCY1CB333K J AA 0.033 µF,16V C911 VCKYCY1CB104K J AB 0.1 µF,16V

PRICE RANK

DESCRIPTIONPARTS CODE

RESISTORS

VRS-CY1JB000J J AA 0 ohm,Jumper,0.8×1.55mm,

R101~104 VRS-CY1JB223J J AA 22 kohms,1/16W R105 VRS-CY1JB394J J AA 390 kohms,1/16W R106 VRS-CY1JB563J J AA 56 kohms,1/16W R154 VRS-CY1JB122J J AA 1.2 kohms,1/16W R161 VRS-CY1JB122J J AA 1.2 kohms,1/16W R204 VRS-CY1JB102J J AA 1 kohm,1/16W R205 VRS-CY1JB684D J AA 680 kohms,1/16W R206 VRS-CY1JB274D J AA 270 kohms,1/16W R207 VRS-CY1JB681J J AA 680 ohms,1/16W R222 VRS-CY1JB105J J AA 1 Mohm,1/16W R351 VRS-CY1JB4R7J J AA 4.7 ohms,1/16W R361 VRS-TQ2BB150J J AA 15 ohms,1/8W R401,402 VRS-CY1JB104J J AA 100 kohm,1/16W R403 VRS-CY1JB102J J AA 1 kohm,1/16W R404 VRS-CY1JB104J J AA 100 kohm,1/16W R405 VRS-CY1JB103J J AA 10 kohm,1/16W R406 VRS-CY1JB104J J AA 100 kohm,1/16W R407 VRS-CY1JB103J J AA 10 kohm,1/16W R408 VRS-CY1JB104J J AA 100 kohm,1/16W R411 VRS-CY1JB104J J AA 100 kohm,1/16W R412 VRS-CY1JB103J J AA 10 kohm,1/16W R413~415 VRS-CY1JB102J J AA 1 kohm,1/16W R422 VRS-CY1JB104J J AA 100 kohm,1/16W R423 VRS-CY1JB223D J AA 22 kohms,1/16W R424,425 VRS-CY1JB223J J AA 22 kohms,1/16W R426 VRS-CY1JB223D J AA 22 kohms,1/16W R431 VRS-CY1JB334J J AA 330 kohms,1/16W R451 VRS-CY1JB562J J AA 5.6 kohms,1/16W R452 VRS-CY1JB822J J AA 8.2 kohms,1/16W R453 VRS-CY1JB183J J AA 18 kohms,1/16W R454 VRS-CY1JB563J J AA 56 kohms,1/16W R455 VRS-CY1JB562J J AA 5.6 kohms,1/16W R456 VRS-CY1JB822J J AA 8.2 kohms,1/16W R457 VRS-CY1JB183J J AA 18 kohms,1/16W R458 VRS-CY1JB563J J AA 56 kohms,1/16W R459,460 VRS-CY1JB473J J AA 47 kohms,1/16W R481 VRS-CY1JB363D J AA 36 kohms,1/16W R482 VRS-CY1JB183D J AA 18 kohms,1/16W R492 VRS-CY1JB102J J AA 1 kohm,1/16W R500 VRS-CY1JB4R7J J AA 4.7 ohms,1/16W R501,502 VRS-CY1JB471J J AA 470 ohms,1/16W R601 VRS-CY1JB563J J AA 56 kohms,1/16W R701,702 VRS-CY1JB101J J AA 100 ohm,1/16W R703 VRS-CY1JB124J J AA 120 kohms,1/16W R711,712 VRS-CY1JB562J J AA 5.6 kohms,1/16W R713,714 VRS-CY1JB103J J AA 10 kohm,1/16W R715,716 VRS-CY1JB104J J AA 100 kohm,1/16W R717 VRS-CY1JB102J J AA 1 kohm,1/16W R719,720 VRS-CY1JB822J J AA 8.2 kohms,1/16W R723,724 VRS-CY1JB682J J AA 6.8 kohms,1/16W R725 VRS-CY1JB101J J AA 100 ohm,1/16W R726 VRS-CY1JB393J J AA 39 kohms,1/16W R727 VRS-CY1JB822J J AA 8.2 kohms,1/16W R728 VRS-CY1JB102J J AA 1 kohm,1/16W R729,730 VRS-CY1JB272J J AA 2.7 kohms,1/16W R753 VRS-CY1JB124J J AA 120 kohms,1/16W R754 VRS-CY1JB274J J AA 270 kohms,1/16W R756,757 VRS-CY1JB273J J AA 27 kohms,1/16W R761,762 VRS-CY1JB362J J AA 3.6 kohms,1/16W R763,764 VRS-CY1JB820J J AA 82 ohms,1/16W R765,766 VRS-CY1JB100J J AA 10 ohm,1/16W [MS722/MS722C] R765,766 VRS-CY1JB270J J AA 27 ohms,1/16W

R767,768 VRS-CY1JB102J J AA 1 kohm,1/16W R769,770 VRS-CY1JB393J J AA 39 kohms,1/16W R800 VRS-TV2AB561J J AA 560 ohms,1/10W R801 VRS-CY1JB222D J AA 2.2 kohms,1/16W R802 VRS-CY1JB472J J AA 4.7 kohms,1/16W R803 VRS-CY1JB273D J AA 27 kohms,1/16W R804 VRS-CY1JB681D J AA 680 ohms,1/16W R805 VRS-CY1JB684D J AA 680 kohms,1/16W R806 VRS-CY1JB304D J AA 300 kohms,1/16W R807 VRS-CY1JB104D J AA 100 kohm,1/16W

Green

[MS722W/MS721W (S)/ MS721W (BL)]

– 2 –

MD-MS722/C/W/MS721W

PARTS CODE NO. PARTS CODE

R808 VRS-CY1JB105D J AA 1 Mohm,1/16W R809 VRS-CY1JB222J J AA 2.2 kohms,1/16W R810 VRS-CY1JB682J J AA 6.8 kohms,1/16W R811 VRS-CY1JB334J J AA 330 kohms,1/16W R812 VRS-CY1JB184J J AA 180 kohms,1/16W R813 VRS-CY1JB104J J AA 100 kohm,1/16W R814 VRS-CY1JB102J J AA 1 kohm,1/16W R815 VRS-CY1JB563D J AA 56 kohms,1/16W R816 VRS-CY1JB243F J AA 24 kohms,1/16W R818,819 VRS-CY1JB184J J AA 180 kohms,1/16W R821 VRS-CY1JB684J J AA 680 kohms,1/16W R822 VRS-CY1JB335J J AA 3.3 Mohms,1/16W R823 VRS-CY1JB104J J AA 100 kohm,1/16W R824 VRS-CY1JB394D J AA 390 kohms,1/16W R826 VRS-CY1JB224D J AA 220 kohms,1/16W R829 VRS-CY1JB153J J AA 15 kohms,1/16W R830 VRS-CY1JB104J J AA 100 kohm,1/16W R831 VRS-CY1JB184D J AA 180 kohms,1/16W R832 VRS-CY1JB224D J AA 220 kohms,1/16W R841 VRS-CY1JB474J J AA 470 kohms,1/16W R842 VRS-CY1JB102J J AA 1 kohm,1/16W R843,844 VRS-CY1JB104J J AA 100 kohm,1/16W R845~847 VRS-CY1JB334J J AA 330 kohms,1/16W R848 VRS-CY1JB105J J AA 1 Mohm,1/16W R849 VRS-CY1JB184J J AA 180 kohms,1/16W R851 VRS-CY1JB103J J AA 10 kohm,1/16W R852 VRS-CY1JB104J J AA 100 kohm,1/16W R853 VRS-CY1JB334D J AA 330 kohms,1/16W R854 VRS-CY1JB225J J AA 0.2 Mohms,1/16W R855 VRS-CY1JB274D J AA 270 kohms,1/16W R857,858 VRS-CY1JB104J J AA 100 kohm,1/16W R859 VRS-CY1JB153J J AA 15 kohms,1/16W R860 VRS-CY1JB333J J AA 33 kohms,1/16W R872 VRS-CY1JB104J J AA 100 kohm,1/16W R891 VRS-CY1JB222J J AA 2.2 kohms,1/16W R892 VRS-CY1JB560J J AA 56 ohms,1/16W R893 VRS-CY1JB102J J AA 1 kohm,1/16W R901,902 VRS-CY1JB1R0J J AA 1 ohm,1/16W R903 VRS-CY1JB331J J AA 330 ohms,1/16W R904 VRS-CY1JB333J J AA 33 kohms,1/16W R905 VRS-CY1JB104J J AA 100 kohm,1/16W R906 VRS-CY1JB274J J AA 270 kohms,1/16W R907 VRS-CY1JB184J J AA 180 kohms,1/16W R908 VRS-CY1JB104J J AA 100 kohm,1/16W R909 VRS-CY1JB103J J AA 10 kohm,1/16W R921 VRS-CY1JB331J J AA 330 ohms,1/16W R922 VRS-CY1JB104J J AA 100 kohm,1/16W

PRICE

RANK

DESCRIPTIONNO.

OTHER CIRCUITRY PARTS

CN101 QCNCW801XAFZZ J AH Socket,22Pin CN451 QCNCW804TAFZZ J AE Socket,18Pin CN482 QCNCW804GAFZZ J AD Socket,7Pin CN601 QCNCW716RAFZZ J AF Socket,16Pin

! F800 QFS-L102AAFNO J AE Fuse,100A,63VDC,Tip Type

J701 VHLGP1FB95R-1 J AP Jack,OPTICAL/LINE IN J702 QJAKM0189AFZZ J AE Jack,MIC IN J703 QJAKM0201AFZZ J AH Jack,Remote Control/Head-

J801 QJAKC0139AFZZ J AE DC Jack M901 RMOTV0510AFZZ J AS Motor Ass’y [Spindle] M902 RMOTV0511AFZZ J AT Motor Ass’y [Sled] M903 RMOTV0512AFM1 J AR Motor Ass’y [Lift] SW401 QSW-M0001AWZZ J AD Switch,Push Type [EJECT] SW402 QSW-S0948AFZZ J AC Switch,Slide Type [HOLD] SW901 QSW-M0169AFZZ J AD Switch,Push Type [Disc In] SW902 QSW-M0170AFZZ J AD Switch,Push Type [Disc Protect]

phones

MECHANICAL PARTS

1 NGERH0597AFZZ J AC Wheel,Drive 2 NSFTD0331AFFT J A E Screw,Drive 3 LHLDX3136AFM2 J AK Cartridge Holder Ass’y 4 MSPRT1607AFFJ J AB Spring,Cancel Lever 5 MLEVF2598AFFW J AD Lever,Eject 6 LCHSM0941AFM1 J AT Main Chassis Ass’y 7 PCUSG0599AFZZ J AB Cushion 8 QPWBH0326AFM1 J AM Mechanism Flexible PWB Ass’y 8- 1 ———— — Mechanism Flexible PWB

8- 2(SW901) QSW-M0169AFZZ J AD Switch,Push Type [Disc In] 8- 3(SW902) QSW-M0170AFZZ J AD Switch,Push Type [Disc Protect]

(Not Replacement Item)

PRICE

RANK

8- 4(PH901) VHPGP1S93K/-1 J AF Photo Interrupter,GP1S93K 9 MSPRP0925AFFJ J AD Driver Screw Bracket 11 MSPRP0923AFFJ J AD Plate Spring 12 MSPRP0924AFM1 J AD Shutter Spring Ass’y 13 NGERH0603AFZZ J AE Gear,Drive

! 15 RCTRH8175AF10 J BM Optical Pickup Unit

16 MSPRP0922AFFJ J AD Spring,Drive Grip 18 NSFTM0292AFFW J AC Shaft,Guide 20 MSPRT1604AFFJ J AB Spring,Eject Lever 23 QPWBH0327AFZZ J AG Magnetic Head Flexible PWB 25 MLEVF2625AFM1 J AK Lift Lever Ass’y 27 MLEVF2626AFFW J AD Lever,Lift Joint 28 MLEVF2627AFFW J AE Lever,Lift 29 MSPRD1360AFFJ J AC Spring,Lift Lever 30 LANGF1588AFFW J AD Bracket,Pickup 32 RCILH0110AFZZ J AM Magnetic Head 502 LX-JZ0154AFZZ J AA Screw,ø1.4×2.8mm 503 LX-BZ0823AFZZ J AA Screw,ø1.4×1.2mm 504 LX-WZ9290AFZZ J AA Washer,ø0.8×ø2.4×0.25mm 505 LX-BZ0800AFZZ J AA Screw,ø1.4×2.5mm 506 XSPSN14P01500 J AA Screw,ø1.7×2.5mm 508 LX-BZ0960AFZZ J AB Screw,ø1.4×1.5mm 509 LX-BZ0980AFZZ J AB Screw,ø1.4×2mm 511 LX-BZ0804AFFF J AA Screw,ø1.4×2.2mm 514 LX-JZ0148AFZZ J AA Screw,ø1.7×3mm 515 LX-WZ9296AFZZ J AA Washer,ø1.5×ø3.5×0.25mm 516 LX-BZ0974AFZZ J AB Screw,ø1.4×5.5mm 517 XAPSF14P01600 J AA Screw,ø1.4×1.6mm 518 XWSSD14-05000 J AA Spring Washer,ø1.4×0.5mm M901 RMOTV0510AFZZ J AS Motor Ass’y [Spindle] M902 RMOTV0511AFZZ J AT Motor Ass’y [Sled] M903 RMOTV0512AFM1 J AR Motor Ass’y [Lift]

DESCRIPTION

CABINET PARTS

201 CCABB2882AF01 J A T Front Cabinet Ass’y 201 CCABB2882AF03 J A T Front Cabinet Ass’y

201- 1 ———— — Front Cabinet 201- 2 GFTAC3135AFSA J AG Cover,MD

201- 3 LANGZ0335AFFW J AB Bracket,Disc Guide 201- 4 PCUSG0638AFZZ J AA Rubber,Preventive Vibration D 201- 5 PGIDM0256AFSA J AB Guide (Left) 202 CCABC4370AF01 J AX Top Cabinet Ass’y

202 CCABC4378AF01 J AX Top Cabinet Ass’y [MS721W (S)] 202 CCABC4378AF03 J AY Top Cabinet Ass’y

202- 1 ———— — Top Cabinet 202- 2 LHLDL3061AFSA J AE Holder,Strap

203 GCABA2882AFSA J AE Center Cabinet 203 GCABA2882AFSB J AE Center Cabinet 204 CCABD4385AF01 J AT Bottom Cabinet Ass’y [MS722]

204 CCABD4386AF01 J Bottom Cabinet Ass’y [MS722C] 204 CCABD4387AF01 J Bottom Cabinet Ass’y [MS722W] 204 CCABD4389AF01 J Bottom Cabinet Ass’y

204 CCABD4389AF03 J Bottom Cabinet Ass’y

204- 1 ———— — Bottom Cabinet 204- 2 GCOVA2292AFSA J AB Cover,DC Jack 204- 3 JKNBZ2113AFSA J AE Knob,Hold 204- 4 PSHET0401AFZZ J AC Sheet,Insulator,Bottom Cabinet 205 GCOVA2284AFSA J AD Cover,Eject

205 GCOVA2284AFSB J AD Cover,Eject 206 JKNBK0526AFSA J AE Knob,Eject

207 LANGT1953AFFW J AC Bracket,Eject Knob 208 LANGZ0348AFM1 J AM Eject Bracket Ass’y 209 PSHET0373AFZZ J AC Sheet 210 PSHEZ0851AFZZ J AC Bracket,Eject Knob 211 LANGK0956AFM1 J AM Main Frame Ass’y 212 PCUSG0649AFZZ J AB Cushion Machanism 213 PCUSG0671AFZZ J AB Cushion 214 PSHEZ0966AFZZ J AC Sheet,Insulator Extension

[MS722/MS722C/MS722W] [MS721W (S)/MS721W (BL)]

(Not Replacement Item)

[MS722/MS722C/MS722W]

[MS721W (BL)]

(Not Replacement Item)

[MS722/MS722C/MS722W] [MS721W (S)/MS721W (BL)]

[MS721W (S)] [MS721W (BL)]

[MS722/MS722C/MS722W] [MS721W (S)/MS721W (BL)]

Battery Terminal

– 3 –

MD-MS722/C/W/MS721W

NO. PARTS CODE

215 PCUSG0675AFZZ J AB Cushion B 216 PGUMS0729AFZZ J AB Cushion Mechanism A 217 PSHEZ0989AFZZ J AB Sheet,Extension Battery

218 PCUSG0534AFZZ J AC Rubber,Preventive Vibration 219 QTANZ9162AFFQ J AC Terminal,+,Rechargeable Battery 220 PCUSG0635AFZZ J AA Rubber,Preventive Vibration B 221 QTANZ9163AFFQ J AC Terminal,-,Rechargeable Battery 222 PCUSG0674AFZZ J AB Cushion A

223 PCUSG0676AFZZ J AB Cushion C

225 PSHEZ0990AFZZ J AB Sheet,Ring

228 PFLT-1127AFZZ J AA PU Felt 229 GFTAB1359AFSA J AE Lid,Battery

229 GFTAB1359AFSB J AE Lid,Battery [MS721W (BL)] 230 QTANZ9164AFFQ J AH Extension Battery Terminal 231 GCOVH1301AFSA J AD Guide,Disc

232 PSHEZ0965AFZZ J AC Sheet,Disc Guide

233 GCOVH1302AFZZ J AD Cover,LCD

234 HDECQ0580AFSA J AK Decoration Plate 234 HDECQ0583AFSA J AH Decoration Plate 235 HDECQ0578AFSA J AK Decoration Ring A

236 HDECQ0579AFSA J AF Decoration Ring B

237 JKNBZ2130AFSA J AF Knob,Function A 237 JKNBZ2144AFSA J AK Knob,Function A 238 JKNBZ2131AFSA J AF Knob,Function B 238 JKNBZ2145AFSA J AF Knob,Function B 239 JKNBZ2132AFSA J AE Knob,Function C 239 JKNBZ2146AFSA J AF Knob,Function C 240 JKNBZ2133AFSA J AE Knob,Function D

241 JKNBZ2134AFSA J AE Knob,Rec 241 JKNBZ2147AFSA J AC Knob,Rec 242 JKNBZ2135AFSA J AK Knob,Jog

243 JKNBZ2136AFSA J AE Knob,FF/FR

244 JKNBZ2137AFSA J AE Knob,Play

246 PSHEZ0967AFZZ J AC Sheet,Transparent Plate 246 PSHEZ0973AFZZ J AC Sheet,Transparent Plate 248 RUNTK0489AFZZ J AU Key Flexible PWB Ass’y 248 RUNTK0493AFZZ J AQ Key Flexible PWB Ass’y 249 RUNTZ0704AFZZ J AY LCD [MS722/MS722C/MS722W]

249 RUNTZ0705AFZZ J AY LCD

PRICE RANK

DESCRIPTION

Terminal

[MS722/MS722C/MS722W Only]

[MS722/MS722C/MS722W/ MS721W (S)]

[MS722/MS722C/MS722W Only]

[MS722/MS722C/MS722W] [MS721W (S)/MS721W (BL)] [MS722/MS722C/MS722W

Only] [MS722/MS722C/MS722W

Only] [MS722/MS722C/MS722W] [MS721W (S)/MS721W (BL)] [MS722/MS722C/MS722W] [MS721W (S)/MS721W (BL)] [MS722/MS722C/MS722W] [MS721W (S)/MS721W (BL)] [MS722/MS722C/MS722W

Only] [MS722/MS722C/MS722W] [MS721W (S)/MS721W (BL)] [MS722/MS722C/MS722W

Only] [MS722/MS722C/MS722W

Only] [MS722/MS722C/MS722W] [MS721W (S)/MS721W (BL)] [MS722/MS722C/MS722W] [MS721W (S)/MS721W (BL)]

[MS721W (S)/MS721W (BL)]

NO.

251 PSHEZ0994AFZZ J AB Sheet,Switch,B

252 PGUMS0730AFZZ J AB Cushion,Mechanism B

253 HDECQ0584AFSA J AQ Alumi Decoration Plate 253 HDECQ0584AFSB J AR Alumi Decoration Plate 254 LHLDZ1747AFZZ J AC Holder,LCD

255 PSHEZ0974AFZZ J AD Sheet,Knob

256 PSHEZ0998AFZZ J AC Sheet,Eject Bracket 259 PCUSG0679AFZZ J AB Cushion A

260 PCUSG0680AFZZ J AB Cushion B

261 PCUSG0681AFZZ J AB Cushion C

262 PFLT-1143AFZZ J AB Felt

263 PSHEZ0999AFZZ J AB Sheet,LCD Flexible

264 PSHEZ1004AFZZ J AB Sheet,Volume Knob

265 TLABS0497AFZZ J AD Caution,Laser

266 TLABS0503AFZZ J AC Label,Laser

601 LX-BZ0877AFF3 J AA Screw,ø1.4×1.5mm 602 LX-CZ0107AFFF J AA Screw,ø1.2×2.5mm 603 LX-CZ0126AFFF J AA Screw,ø1.4×2mm 604 LX-BZ0805AFFN J AB Screw,ø1.7×2.5mm 605 LX-BZ0822AFFC J AC Screw,ø1.4×2.5mm 606 LX-BZ0967AFFC J AB Screw,ø1.4×2mm 607 LX-BZ0908AFF3 J AA Screw,ø1.4×2.0mm

PRICE RANK

DESCRIPTIONPARTS CODE

[MS722/MS722C/MS722W Only]

[MS721W (S) Only] [MS721W (BL) Only] [MS721W (S)/MS721W (BL)

Only] [MS721W (S)/MS721W (BL)

Only]

[MS721W (S)/MS721W (BL) Only]

[MS722/MS722C/MS722W Only]

[MS721W (S)/MS721W (BL) Only]

[MS722C/MS722W/MS721W (S)/MS721W (BL) Only]

PACKING PARTS [MS722C/W/MS721W ONLY]

SPAKA2679AFZZ J AD Packing Add.

SPAKA2704AFZZ J AD Packing Add. [MS722C] SPAKC6673AFZZ J Packing Case [MS722C] SPAKC6674AFZZ J AL Packing Case [MS722W] SPAKC6685AFZZ J AL Packing Case [MS721W (S)] SPAKC6686AFZZ J AL Packing Case [MS721W (BL)] SPAKZ0465AFZZ J AD Pad,AC Adaptor

SPAKZ0475AFZZ J AD Spacer,Operation Manual

SPAKZ0489AFZZ J Pad,AC Adaptor [MS722C] SPAKZ0498AFZZ J Packing Add.,Unit SPAKZ0507AFZZ J Pad,AC Adaptor

SPAKZ0509AFZZ J Packing Add.,Unit SSAKP0116AFZZ J AD Paper Bag,Unit

[MS722W/MS721W (S)/ MS721W (BL)]

[MS722W/MS721W (S)/ MS721W (BL) Except for Australia/New Zealand]

[MS722W/MS721W (S)/ MS721W (BL) for Australia/New Zealand]

ACCESSORIES

GCASZ0086AFSA J AX Battery Case PCAPH8107AFZZ J AD Cushion,Headphones

[MS722W/MS721W (S)/ MS721W (BL)]

– 4 –

MD-MS722/C/W/MS721W

PARTS CODE NO. PARTS CODE

QCNWG0382AFZZ J AK Connecting Cord,RCA Type QCNWG0422AFZZ J AQ Connecting Cord,Optical Type QPLAGA0250AFZZ J Plug,AC Adaptor

! RADPA3489AFZZ J AV AC Adaptor [MS722/MS722C] ! RADPA5402AFZZ J BF AC Adaptor

! RADPA5403AFZZ J BF AC Adaptor

! RADPA6435AFZZ J BG AC Adaptor

! RADPA8493AFZZ J BH AC Adaptor

RPHOH0176AFZZ J AR Headphones

RPHOH0185AFZZ J AW Headphones [MS722/MS722C] RRMCW0035AFSA J BC Remote Control

RRMCW0038AFSA J BC Remote Control TCAUH0341AFZZ J AD Caution,Headphones

TCAUZ0450AFZZ J AD Caution Label,Operation Manual

TGANE1220AFZZ J AB Warranty Card

TGANE1230AFZZ J Warranty Card

TGANZ1096AF01 J Warranty Card TINSE1642AFZZ J Operation Manual

TINSE1643AFZZ J AG Operation Manual

TINSK0369AFZZ J Operation Manual [MS722C] TINSZ1381AFZZ J AG Operation Manual [MS722] TINSZ1382AFZZ J AD Quick Guide [MS722 Only] TINSZ1383AFZZ J AN Operation Manual

TINSZ1386AFZZ J AN Operation Manual

TLABG0527AFZZ J AC Label,Hong Kong

TLABH0699AFZZ J Label,Taiwan

TLABM0638AFZZ J AD Label,Specification TLABR1008AFZZ J AC Label,Bar Code

TLABR1009AFZZ J AC Label,Bar Code

TLABR1010AFZZ J AC Label,Bar Code

TLABS0478AFZZ J AC Label,CAP

UBAGC0076AFSA J AH Carrying Case UBATI0068AFSA J BG Rechargeable,Battery UBNDT0083AFSA J AG Strap

PRICE

RANK

DESCRIPTIONNO.

[MS722W/MS721W (S)/ MS721W (BL)]

[MS722W/MS721W (S)/ MS721W (BL) Except for Taiwan/Australia/New Zealand/ Hong Kong]

[MS722W/MS721W (S)/ MS721W (BL) for Taiwan]

[MS722W/MS721W (S)/ MS721W (BL) for Australia/New Zealand]

[MS722W/MS721W (S)/ MS721W (BL) for Hong Kong]

[MS722W/MS721W (S)/ MS721W (BL)]

[MS721W (S)/MS721W (BL)] [MS722/MS722C/MS722W]

[MS722W/MS721W (S)/ MS721W (BL) for Taiwan Only]

[MS722W/MS721W (S)/ MS721W (BL) for Australia/New Zealand]

[MS722W/MS721W (S)/ MS721W (BL) for Philippines]

[MS722W for Taiwan] [MS721W (S)/MS721W (BL) for

Australia/New Zealand] [MS722W for Australia/New

Zealand]

[MS722W Except for Australia/ New Zealand]

[MS721W (S)/MS721W (BL) Except for Australia/New Zealand]

[MS722W/MS721W (S)/ MS721W (BL) for Hong Kong Only]

[MS722W/MS721W (S)/ MS721W (BL) for Taiwan Only]

[MS722W for Taiwan Only] [MS721W (BL) for

Central•South America Only] [MS721W (S) for Central•South

America Only] [MS722W for Central•South

America Only] [MS722W/MS721W (S)/

MS721W (BL) forSingapore]

PRICE

RANK

DESCRIPTION

P.W.B. ASSEMBLY (Not Replacement Item)

PWB-A DCYO-3088AF93 J — Main [MS722/MS722C] PWB-A DCYO-3090AF93 J — Main

[MS722W/MS721W (S)/ MS721W (BL)]

OTHER SERVICE PARTS

UDSKM0001AFZZ J AZ Recording Mini Disc 88GMMD-110 J BV High Reflection Disc MMD-110

88GMMD-212 J BU Low Reflection Disc MMD-212

(TEAC Test MD) (TEAC Test MD)

– 5 –

MD-MS722/C/W/MS721W

506

8

A

503

8-4

8-1

(PH901)

2

9

8-2 (SW901)

B

18

C

505

15

16

M901

514

11

502x3

1

515

25

514

8-3 (SW902)

504

503x2

13

M902

516

M903

D

27

7

508

509

E

6

517

23

28

F

29

511x2

3

518x2

32

12

G

4

20

H

30

508

5

1

23456

Figure 6 MD MECHANISM EXPLODED VIEW

– 6 –

MD-MS722/C/W/MS721W

MS722/C/W

241

235

240

A

242

237

239

234

246

B

233

263

251x2

C

606x2

202-1

D

232

231

223x2

225x2

202

236

238

243

MD MECHANISM

244

217

214

201-5

201

MS721W(S) /MS721W(BL)

219

201-1

212

603

213

216

212

602

218

201-2

201-4

201-3

601

249

248

230

252

-2

225x2

222

606

601

202

216

220

256

207

229

215

218

210

212

205

203

211

209

208

601

607

206

604

204-4

PWB–A

221

204

204-2

606

266

E

Except for MS722

F

265

238

241

237

264x3

248

254

253

255

202

234

246

249

239

606x2

228x2

604

204-1

G

202-1

260x2

262

H

602

259

202-2

261

606x2

204-3

605

1

23456

Figure 7 CABINET EXPLODED VIEW

– 7 –

PACKING OF THE SET (MD-MS722 ONLY)

SETTING POSITION OF SWITCHES AND KNOBS

UNIT HOLD OFF Remote HOLD CANCEL

Control

Caution, Headphones

Operation Manual

Quick Guide

MD-MS722/C/W/MS721W

Connecting Cord, Optical Type

Carrying Case UBAGC0076AFSA

Battery Case

Headphones

AC Adaptor

Paper Bag, Unit SSAKP0116AFZZ

Packing Add., Unit SPAKZ0498AFZZ

Pad, AC Adaptor SPAKZ0489AFZZ

MD-MS722

Strap

Packing Add., Unit SPAKZ0509AFZZ

Packing Add. SPAKA2704AFZZ

Remote Control

Rechargeable, Battery

Connecting Cord, RCA Type

– 8 –

Packing Case SPAKC6672AFZZ

: Not Replacement Item

MD-MS722/C/W/MS721W

©

No part of this publication may be reproduced, stored in a retrieval system, or transmitted in any from or by any means, electronic, mechanical, photocopying, recording, or otherwise, without prior written permission of the publisher.

SHARP CORPORATION Communication Systems Group Quality & Reliability Control Center Higashihiroshima, Hiroshima 739-0192, Japan

Printed in Japan

A9812-3516NS•HA•M

SC • SL • EX • SA • SZ

Sharp MDMS-721-W, MDMS-722, MDMS-722-C, MDMS-722-W Service manual

Specifications and Main Features

Frequently Asked Questions

User Manual