Page 1
MD-MS722/C/W/MS721W
– 1 –
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)
MD-MS722
MD-MS722C
MD-MS722W
MD-MS721W(BL)
MD-MS721W(S)
SERVICE MANUAL
SHARP CORPORATION
No. SX891MDMS722U
This document has been published to be used
for after sales service only.
The contents are subject to change without notice.
• 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)
(Illustration: MD-MS722/MS722C/MS722W)
Page 2
MD-MS722/C/W/MS721W
– 2 –
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.
Figure 2-1 Figure 2-2
Magnet Head
Lasar Beam
Optical Pick-Up
Main PWB
Disc motor
Mechanism
Chassis
Magnet head
Optical pick-up
Disc cover
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
min. cycle 1.5S
Repetition
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.
(Illustration: MD-MS722W)
Page 3
MD-MS722/C/W/MS721W
– 3 –
FOR A COMPLETE DESCRIPTION OF THE OPERATION OF THIS UNIT, PLEASE REFER TO
THE OPERATION MANUAL.
General
Power source: DC 3.6 V (rechargeable lithium-ion
(MS722/MS722C) battery x 1)
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)
Power source: DC 3.6 V (rechargeable lithium-ion
(MS722W/MS721W) battery x 1)
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)
Power consumption: 7 W (AC adaptor)
(MS722/MS722C)
Power consumption: 0.15A (AC adaptor)
(MS722W/MS721W)
Output power: RMS; 20 mW (10 mW + 10mW)
(0.2% T.H.D.)
Charging time: Approx. 3 hours
(When using the AC adaptor included
with the unit)
Battery life:
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
o
C.
The operating time when using alkaline batteries may be different,
depending on the type and manufacturer of the batteries, and on the
operating temperature.
Input sensitivity:
Output level:
(MS722/MS722C)
Output level:
(MS722W/
MS721W)
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
laser pick-up
Audio channels: Stereo 2 channels/monaural (long-
play mode) 1 channel
Frequency response: 20 - 20,000 Hz (± 3 dB)
Rotation speed: Approx 400 - 900 rpm
Error correction: ACIRC (Advanced Cross Interleave
Reed-Solomon Code)
Coding: ATRAC (Adaptive TRansform
Acoustic Coding), 24-bit computed
type
Recording method: Magnetic modulation overwrite
method
Sampling frequency: 44.1 kHz (32 kHz and 48 kHz signals
are converted to 44.1 kHz, and then
recorded.)
Wow and flutter: Unmeasurable (less than ±0.001%
W.peek)
SPECIFICATIONS
When using the
rechargeable battery (fully
charged) included with the
unit
When using one,
commerically available,
high capacity, "AA" size,
alkaline batteries (in the
battry case)
When using one,
commercially available,
high capacity, "AA" size
batteries with the rechargeable battery (fully charged)
Continuous recording:
Approx. 8 hours
Continuous recording:
Approx. 3 hours
Continuous recording:
Approx. 11 hours
Continuous play:
Approx. 10 hours
Continuous play:
Approx. 6 hours
Continuous play:
Approx. 16 hours
Recording level
Reference input level
Input impedance
MIC H 0.25 mV 10 k ohms
MIC L 2.5 mV 10 k ohms
LINE 100 mV 20 k ohms
Specifications for this model are subject to change without prior
notice
Headphones — 10 mW + 16 ohms
10 mW
LINE 300 mV — 10 kohms
(-12dB)
Maximum
output level
Specified
output
Load
impedance
Headphones — 10 mW + 32 ohms
10 mW
LINE 300 mV — 10 kohms
(-12dB)
Maximum
output level
Specified
output
Load
impedance
Page 4
MD-MS722/C/W/MS721W
– 4 –
NAME OF PARTS
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
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
MD-MS722/MS722C/MS722W
RANDOM
TOTAL
1
REC
SYNC
1
6
2
3
4
5
789
13
10
11
12
14
12345 6
7
8
9
10
11
12
13
14
1516
2019
28
272625 29 30 31 32 33
1817
21 22
23
24
34
36
37
38
35
Page 5
MD-MS722/C/W/MS721W
– 5 –
MD-MS721W
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. 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
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
RANDOM
TOTAL
1
REC
SYNC
12
13
14
11
15
16
17
18
10
1
6
2
3
4
5
789
12345
6
7
8
9
10
11
12
13
1415
2016
28
2726
25
29
30 31 3224
1817
21 22 2319
33
35
36
37
34
Page 6
MD-MS722/C/W/MS721W
– 6 –
OPERATION MANUAL
Rechargeable battery power
When the rechargeable battery is used for
the first time or when you want to use it
after a long period of 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
OPEN
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.
Page 7
MD-MS722/C/W/MS721W
– 7 –
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
Page 8
MD-MS722/C/W/MS721W
– 8 –
( ): 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
Page 9
MD-MS722/C/W/MS721W
– 9 –
PORTABLE MINIDISC RECORDER
Quick Guide/Guía rápida
MD-MS722
Power source /
Alimentación
2
Check the su pplied acce ssories /
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
OPEN
OPEN
OPEN
OPEN
OPEN
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)
Page 10
MD-MS722/C/W/MS721W
– 10 –
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. Em puje completamente
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.
Page 11
MD-MS722/C/W/MS721W
– 11 –
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
11-3
in the arrow direction.
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.
REMOVAL
PROCEDURE
STEP
FIGURE
Figu re 11-1
Figure 11-2
(A2)x1
ø1.4x2.5mm
(A2)x2
ø1.4x2mm
(A2)x1
ø1.4x2mm
(A2)x2
ø1.4x2mm
(B1)x1
ø1.4x2mm
(B1)x2
ø1.4x2mm
Bottom Cabinet
Top Cabinet
Center
Cabinet
(A1)x1
Pull
(C1)x1
ø1.7x2.5mm
(C1)x1
ø1.7x2.5mm
(B2)x1
(C3)x3
(B2)x1
Top Cabinet
Pull
Pull
Pull
Pull
Pull
Pull
(C2)x1*
Flexble PWB for
optical pickup
(C2)x1
(C3)x1
Main PWB
Put the fold on the connector, and
apply with the felt. Sagging may
result in contact with the sheet metal.
Felt
Mechanism Unit
ø1.4x2.5mm
Figure 11-3
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 11-4
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.
Insert the key flexible PWB
at first into the clearance of
center cabinet.
Do not allow rise of
upper cabinet.
INST ALLING THE TOP CABINET
Figure 11-6Figure 11-5
(Illustration: MD-MS722)
Page 12
MD-MS722/C/W/MS721W
– 12 –
REMOVING AND REINSTALLING THE MAIN PARTS
Remove the mechanism according to the disassembling methods 1 to 3. (See Page 11.)
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.
Figure 12-5
Figure 12-1
Figure 12-2
Figure 12-3
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.
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.)
Figure 12-4
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.
Mechanism Flexible PWB
Solder joint
(A1)x1
Spindle Motor
(A2)x3
ø1.4x2.8mm
MD Mechanism
(B3)x1
ø1.4x5.5mm
MD Mechanism
(B1)x2
Remove the
solder joint
Lift Motor
(B2)x1
ø1.4x1.5mm
(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
(D1)x1
Ø1.4x1.5mm
Solder
joint
(D2)x2
Pickup Unit
Shaft
Magnetic Head
Pickup Unit
Shaft
(E1)x1
ø1.7x2.5mm
Page 13
MD-MS722/C/W/MS721W
– 13 –
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)
(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).
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
ADJUSTMENT
Test disc
MD adjustment needs two types of disc, namely recording disc (low reflection disc) and playback-only disc (high
reflection disc).
Type
Test disc Parts No.
Note: Use the low reflection disc on which music has been recorded.
EEPROM version
Destination
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
Test Mode
1. AUTO 1 Mode • Perform preliminary automatic adjustment.
• If the combination of mechanism and pickup
PWB has been changed, be sure to start from
AUTO1.
2. AUTO 2 Mode
• Perform ATT (attenuator) automatic adjustment.
• Perform continuous playback (error rate display,
jump test)
3. MANUAL 1 Mode
• Temperature is displayed. (Updating in real time)
• Seeing the displayed adjustment value, perform
preliminary manual adjustment.
(Error rate indication, jump test)
4. MANUAL 2 Mode
• 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).
5. RESULT 1 Mode
• The value adjusted in AUTO1 or MANUAL1 is
indicated.
• (Execution in servo "OFF" state").
6. RESULT 2 Mode
• The value adjusted in AUTO 2 or MANUAL 2 is
indicated.
• Adjustment value is changed manually.
(error rate display, jump test).
7. TEST-PLAY Mode
• 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.
Microcomputer version
8. TEST-REC 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.
9. NORMAL Mode
• 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.
10. DIGITAL INPUT Mode
• Digital input information is displayed.
11. ERROR INFORMATION
• Error information is displayed.
Mode • Error information is initialized
12. EE-PROM Mode
• 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)
13. INNER Mode
• 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.
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.
Page 14
MD-MS722/C/W/MS721W
– 14 –
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.
0050 — 03C0 — 0700 — 08A0 — 0050 —
• 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.
005
0 — 0050 — 0050 — 0050 — 0050 —
• 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.
1 — 10 — 384 — 1
* 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.
Page 15
MD-MS722/C/W/MS721W
– 15 –
•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.
[ R P W ]
• : Address
• : Laser power cord
• Operation is disabled if the premastered disc or disc is in miserase-protected state.
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)
: Address (Sector section)
• Selection of sound volume, BASS, etc. is possible (without indication)
• Recording is also possible.
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.
Page 16
MD-MS722/C/W/MS721W
– 16 –
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 ~ +10oC 08h + 0.5oC
+ 3oC ~ +21oC 07h + 12.5oC
+15oC ~ +33oC 06h + 23.6oC
+26oC ~ +43oC 05h + 35.0oC
Center temperature
[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 ~ +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
Center temperature
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
Page 17
MD-MS722/C/W/MS721W
– 17 –
EEPROM DATA LIST (EEPROM version f)
TEMP setting
Item display Set values
T M _ _ Calculate values
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
BASS setting
Item display Set values
B S 1 _ 0 0 H
B S 2 _ 2 D H
B S 3 _ 4 B H
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
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
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
Fucus setting
Tracking setting
Item display Set values
T G _ _ 2 6 H
T F 1 _ 7 0 H
T F 2 _ E 0 H
T F S _ 0 0 H
T B o _ 2 B H
T B t _ 1 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
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
Spindle setting
Page 18
MD-MS722/C/W/MS721W
– 18 –
: 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
SKIP UP SKIP DOWN
SKIP UP 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
SKIP UP SKIP DOWN
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 UP
SKIP DOWN
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
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
Page 19
MD-MS722/C/W/MS721W
– 19 –
: 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
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
Page 20
MD-MS722/C/W/MS721W
– 20 –
: 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
Page 21
MD-MS722/C/W/MS721W
– 21 –
: 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
Page 22
MD-MS722/C/W/MS721W
– 22 –
: 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
DISP
A d 0 7 9 0
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.
1st digit (initial value) 2nd digit 3rd digit
A d 0 0 5 0
A d 0 0 5 0
BASS
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
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
BASS
Page 23
MD-MS722/C/W/MS721W
– 23 –
: 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
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.
Page 24
MD-MS722/C/W/MS721W
– 24 –
: 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
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
Page 25
MD-MS722/C/W/MS721W
– 25 –
: 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
Page 26
MD-MS722/C/W/MS721W
– 26 –
: 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
P-MODE
* In the specific state the setting changes in the range of "0h to Fh" when the [VOL UP/DOWN]
key is pressed.
Page 27
MD-MS722/C/W/MS721W
– 27 –
: 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
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
Page 28
MD-MS722/C/W/MS721W
– 28 –
Continued from
the preceding page
D R H
SKIP UP SKIP DOWN
P L E
SKIP UP SKIP DOWN
SKIP UP SKIP DOWN
SKIP UP SKIP DOWN
R C E
E L T
S L T
SKIP UP SKIP DOWN
S P M
SKIP UP SKIP DOWN
SKIP UP SKIP DOWN
SKIP UP SKIP DOWN
M S L
U S 0
SKIP UP SKIP DOWN
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
P-MODE
* In the specific state the setting changes in the range of "0h to Fh" when the
[VOL UP/DOWN] key is pressed.
Page 29
MD-MS722/C/W/MS721W
– 29 –
Figure 29 BLOCK DIAGRAM
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
+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
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
+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
8
13
1-4
35
2,15-17,
19-22
1-3
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
Page 30
MD-MS722/C/WMS721W
– 30 –
A
B
C
D
E
F
G
H
1
23456
Figure 30 SCHEMATIC DIAGRAM (1/4)
P30
P31 P32
• NOTES ON SCHEMATIC DIAGRAM can be found on page 39.
L204
CK109
TP206
TP212
C204
0.47
TP211
TP487
TP204
TP602
TP901
R403
1K
R922
100K
R921
330
TP400
TP412
TP413
TP202
C651
1
L651
0.47µH
C622
0.1
C602
1
C601
1
L602
47µH
L601
47µH
C610
1
C609
1
C608
3.3
TP601
L608
100µH
L609
47µH
L610
47µH
IC601
17A39TD
PWM DRIVER
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
8
7
6
5
4
3
2
1
TP207
S
2
1
R431
330K
C431
0.47
D431
1SS361
SW402
HOLD
R601
56K
TP417
TP416
CK106
TP151
R222
1M
XL201
33.8688MHz
C211
5P(CH)
C212
8P(CH)
CK207
TP2
0
CK2
2
CK2
2
L603
47µH
L604
47µH
C603
1
C604
1
XL401
4.194M
H
R408
100K
R407
10K
TP404
TP403
R402
100K
R401
100K
R422
100K
TP407
TP409
R412
10K
S
E
4
3
2
1
R415
1K
TP408
R413
1K
R414
1K
TP351
R351
4.7
L171
10µH
C171
33/6.3
C172
33/6.3
C130
0.1
C112
0.033
R106
56K
TP145
C207
0.1
C203
0.1
R204
1K
TP116
TP117
TP120
TP122
TP121
TP111
TP118
TP110
TP114
TP103
TP108
TP102
TP106
TP109
TP101
TP105
TP115
TP119
TP666
TP665
TP664
TP663
TP662
TP661
TP660
TP659
TP658
TP657
TP656
TP655
TP654
TP653
TP652
TP651
C122
270P(CH)
C121
270P(CH)
C124
390P
C123
390P
Q354
2SK2911
Q352
2SK2911
Q353
2SK2909
Q351
2SK2909
R105
390K
TP209
TP210
CK201
CK202
CK203
CK206
CK205
CK204
C353
10/6.3
R361
15
C361
0.039
D351
SB0209CP
D352
SB0209CP
C351
47P(CH)
C354
0.1
IC351
74ACT02T
HEAD DRIVER
14
13
12
11
10
9
8
7
6
5
4
3
2
1
C357
0.1
R206
270K
C205
0.1
R205
680K
C165
0.033
R161
1.2K
C903
3.3
R906
270K
R905
100K
C910 0.033
C908 0.22
C906 0.0022
C909 0.033
C905 0.0022
C907 0.0022
IC901
BA6965AF
3-PHASE
BRUSH LEESS
DRIVER
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
R902
1
R901
1
R904
33K
R903
330
R907
180K
R908
100K
R909
10K
C902
0.01
C103
1
TP144
IC401
IX2772AF
SYSTEM
MICROCOMPU
T
C100
10/6.3
L20
1
22µ
H
L100
10µH
TP139
R154
1.2K
CK101
C161
1
TP100
R103
22K
R104
22K
CK104
C102
1
C111
0.0033
IC101
IR3R55
RF SIGNAL,
PROSESSOR
35
34
33
32
31
30
29
28
27
26
25
12
11
10
9
8
7
6
5
4
3
2
1
IC201
LR37811
ENDEC LSI
CK112
TP201
TP208
C110
0.22
C201
1/16
R102
22K
R101
22K
CK103
C106
0.22
CK102
C109
1/16
C107
0.012
C104
0.027
Q101
2SA17457
CK107
TP131
TP130
TP133
CK108
TP132
48
47
46
45
44
43
42
41 40 39 38 37
36
24
23
22
21
20
19
18
17
16
15
14
13
9
10 11 12 13 14 15 16 17 18 19 20
21
22
23 24
25
26
27
28
29
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
47
48
49
50
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
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
97
98
99
100
8
7
6
5
4 3 2 1
10 11 12 13 14 15 16 17 18 19 20 21
22 23 24 25
26
26
27
27
28
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
48
49
49
50
50
51 52 53
54
55 56 57 58 59 60 61 62 63 64 65 66
6
9
8
7
6
5
4 3 2 1
CN101
22
21
20
19
18
17
16
15
14
13
12
11
10
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4 3 2 1
16
15
14
13
12
11
10
9
8
7
6
5
4 3 2 1
CN601
M903
LIFT
MOTOR
PH901
GP1S93K
M
M902
SLED MOTOR
M
M
M901
SPINDLE MOTOR
SW902
DISC PROTECT
SW901
DISC IN
C605
0.1
TP610
C600
22/6.3
L600
2.2
R404
100K
IC651
LB1930M
MOTOR DRIVER
1
0
9
8
7
6
5
4
3
2
1
C911
0.1
NC
NC
NC
R
PCNT1
PHOLD
SYD7
SYRS
SYRD
SYWR
SYD6
SYD5
SYD4
SYD2
SYD3
SYD1
SYD0
ELLVL
RI4
FI4
FI3
RI3
VD4
FO4
PGND
RO4
VD4
VD3
RO3
PGND
FO3
VD3
GND
VC
VG
RI2
FI2
FI1
RI1
VD2
FO2
PGND
VD2
VD1
RO1
PGND
FO1
VD1
CLK
AGND
JPNP
VCC
µSTBY
NMI
MD2
WDTOVF
MD1
MD0
BUZOUT
RCPCNT
VSS
VSS
EEPD
UOUT
VM
VOUT
WOUT
RF
RIB
STBY
BRK+
BRK–
CSL2
CSL1
CST
COM
WIN
VIN
UIN
FG
VCC
GND
T+
T–
F+
F–
PBOPON
RCLAT
RACLK
RFLAT
OPICGA
RAA4
RAA5
RAA6
RAA7
RAA8
RAOEX
RACASX
RAD2
RAD3
VDD2
DGND
RAA9
RARASX
RAWEX
RAD1
RAD0
VDD1
DGND
AVCC
EFMI
DGND
VDD1
VDD1
DGND
BIN
EIN
FIN
AIN
AGND
TCG
SLDRR
SLDRF
TRDRR
TRDRF
X176KO
TEST2
FODRF
FODRR
TEST0
TEST1
WBI
VBAT
SYSD6
SYSD5
SYSD4
SYSD3
SYSD2
SYSD1
SYSD0
RSTX
DINTX
MCCK
COUT
SENSE
FOK
SFSY
SBSY
OPTCNT
DAPON
ADPON
VXI
X1I
X1O
DIN
DOUT
VDD3
DGND
LRCK
BCLK
DFCK
RAA10
LOGIC
HPFLPF
R
and
SW
DIFF
DIFF
EFM
AGC
ADIP
AGC
BIAS
TCGI
AIN
BIN
EIN
FIN
RF1
RF2
RF3
RF4
REFI
REFO
RFADD
BIAS
AVCC
STBY
DISC
SGAIN
AGND
DGND
DTEMP
LATCH
CLOCK
DATA
DVCC
FOUT
EOUT
BOUT
AOUT
TCGO
WBO
22KI
22KO
ADLPFO
ADIPO
ADIPI
ADAGC
ADAG
RF2-1
EFMO
EFMI
AVCC
AGND
EFMAGC
EFMAGI
TTR
GOUT
ROUT
EFMMON
INPGCK
INPGI
MCPGI
TEST1
TEST0
KHOLD
RPLAY
DSPSCK
RESET
VCC
XTAL
INNSW
LDON
SYRS
SYRD
SYWR
SYD7
SYD6
EEPK
EPCS
OPIC
FLEXIBLE
PWB
PICKUP UNIT
FLEXIBLE
PWB
+ -
HEAD
COM
W
U
V
–
+
1 16
MAIN PWB-A
PLAYBACK SIGNAL
RECORD SIGNAL
AUDATA
AUSCLK
RFLAT
TEMP
LDON
LDVAR
OPICGA
SYRS
SYRD
SYWR
SYD7
SYD6
SYD5
SYD4
SYD3
SYD2
SYD1
SYD0
XRT
DINT
MCCK
CIN
LDCNT1
LDCNT2
VPD
DCNT1
EMPH1
EFMO
SPDRR
SPDRF
SLDRR
SLDRF
TRDRR
TRDRF
FODRR
FODRF
VCCENDEC
X176KO
LG
RO2
SLDRF
SLDRR
SPDRF
SPINDLE/SLED/LIFT
MOTOR ASSY UNIT
FOK
SENSE
DCNT1
T–
T+
F+
F–
VCC
MP/R
B
A
COM
CVCC
VCC
DGND
AGND
E
F
T–
F+
T+
F–
RF2
RF4
RF3
RF1
LDON
DGND
LDVAR
GND
VCC
SPIN
HDON
EFMO
SPDRR
RCAULT
MCPGIN
INPGCK
RCPCNT2
RCLED
DSPSCK
DSPSTB
DSPDAT
INNSW
PBMUTE
PBAULT
BEEP
LDON
OPICGA
RFLAT
ELLVL
ELON
AUDATA
AUSCLK
INNSW
PDCNT
DCNT1
X176KO
TRDRF
TRDRR
FODRR
FODRF
OE
PS
SYD5
SYD4
SYD3
SYD2
SYD1
SYD0
PCNT1
PHOLD
DSPDAT
DSPSTB
VSS
ELON
RADAT
PBLAT
REC
SBO
SBCK
TEMON
TOTMON
FEMON
DADATA
ADDATA
X700KO
LDCNT1
LDCNT2
EFMO
TCRS
PLCK
ACRCER
SPDRR
SPDRF
RAA3
RAA2
RAA1
RAA0
SYRDX
SYRS
SYSD7
SYWRX
DISCPR
G
I1
VCC
I2
G
O1
O2
LDCNT2
LDCNT1
INPGIN
R207
680
+B
+B
+B
+B
+B
+B
+B
+B
+B
C422
10/6.3
(Only Serial
No. 8110180)
Page 31
MD-MS722/C/W/MS721W
– 31 –
7
8 9 10 11 12
• The numbers 1 to 18 are waveform numbers shown in page 40.
Figure 31 SCHEMATIC DIAGRAM (2/4)
P30
P31 P32
L204
2
1
DB
VREF
(From Serial
No. 81201801)
TP206
C202
47/6.3
TP212
C204
0.47
TP211
C200
1
IC200
62FP2002
2V REGULATOR
3
2
1
C481
0.1
487
TP772
TP771
TP204
TP414
R454
56K
R453
18K
R452
8.2K
R451
5.6K
R459
47K
R460
47K
R458
56K
R457
18K
R456
8.2K
R455
5.6K
TP400
TP412
IC404
7SH00FU
NAND GATE
5
4
3
2
1
TP413
TP202
H
C602
1
1
C837
0.1
C836
0.1
D836
1SS372
TP207
IC431
S80820LN
RESET
4
3 2
1
R431
330K
C431
0.47
D431
1SS361
SW402
HOLD
P
O
6
5
4
3
2
1
C826
100/6.3
(Only Serial No. 81101800)
220/6.3
(From Serial No. 81201801)
C825
3.3/10
D821
F10J2E
L821
10 (CH)
IC821
CPH3303
C822
8P
R823
100K
R821
680K
R822
3.3M
C821
68P (CH)
R426
22K
R860
33K
R858
100K
C859
0.001
R851
10K
100K
R852
C851
68P
(CH)
I
PO
W
6
5
4
3
2
1
R855
270K
TP417
TP416
TP405
TP406
R406
100K
R405
10K
TP205
R222
1M
XL201
33.8688MHz
C211
5P(CH)
C212
8P(CH)
CK207
TP203
CK224
CK222
IC202
IX2723AF
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
C603
1
C604
1
C503
3.3/10
C508
1
C500
10/6.3
IC501
AK4519VF
AD/DA
CONVERTER
D852
F1J2F
C857
10(CH)
C853
10P
R853
330K
R854
0.2M
D8
F1
0
L861
4.7µH
C862
1/16
C864
47/6.3
C869
47/6.3
L862
47µH
C868
1
C772
47/6.3
C771
47/6.3
L771
47µH
C401
0.1
XL401
4.194MHz
R425
22K
R424
22K
R423
22K
R408
100K
R407
10K
TP404
TP403
TP415
TP402
TP401
R402
100K
R401
100K
R422
100K
SW401
3
2
TP410
TP407
TP409
TP411
R412
10K
R411
100K
IC402
S29L294A
EE-PROM
8
7
6
5
4
3
2
1
R415
1K
TP408
R413
1K
R414
1K
C207
0.1
C203
0.1
R204
1K
TP209
TP210
CK201
CK202
CK203
CK206
CK205
CK204
R206
270K
C205
0.1
R205
680K
IC401
IX2772AF
SYSTEM
MICROCOMPUTER
C100
10/6.3
L201
22µH
L100
10µH
TP139
L202
100µH
TP100
R103
22K
R104
22K
IC201
LR37811
ENDEC LSI
TP201
TP208
C201
1/16
R102
22K
0
1
K
TP200
9
10 11 12 13 14 15 16 17 18 19 20
21
22
23 24
25
26
27
28
29
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
47
48
49
50
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
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
97
98
99
100
8
7
6
5
4 3 2 1
12
11
10
131415
161718192021
22
2324
9
8
7
6
5
4 3 2 1
9
10 11 12 13 14 15 16 17 18 19 20 21
22 23 24 25
26
26
27
27
28
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
48
49
49
50
50
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
98
99
99
100
100
8
7
6
5
4 3 2 1
4
1
R481
36K
R482
18K
IC771
TK71225M
5
4 3
2
1
C605
0.1
TP610
C600
22/6.3
L600
2.2
C773
0.22
C774
1
C
0
.
C507
10/6.3
R500
4.7
C506
0.001
C505
0.001
R
P
RESET
RKEY
HDON
PCNT1
PHOLD
SYD7
SYRS
SYRD
SYWR
SYD6
SYD5
SYD4
SYD2
SYD3
SYD1
SYD0
DCNT1M
ELLVL
(JOG1)
(JOG0)
EAIN+
DB
EAIN-
VREF
GND
EAOU
T
EAOU
T
GND
VREF
EAIN-
DB
EAIN+
VCC
GND
A10
JPNP
VSS
VSS
EXTAL
VCC
µSTBY
NMI
MD2
WDTOVF
MD1
MD0
BUZOUT
RCPCNT
VSS
VSS
EEPD
EJECT
VSS
VDD
OUT
T+
T–
F+
F–
START
PBOPON
RCLAT
RACLK
RFLAT
OPICGA
RMDAT
PLVDRY
PLVDCI
PLVINN
MCMON
GND
I/O4
CAS
OE
A8
A7
VCC
A3
A2
A1
A0
A9
RAS
WE
I/O2
I/O1
RAA4
RAA5
RAA6
RAA7
RAA8
RAOEX
RACASX
RAD2
RAD3
VDD2
DGND
RAA9
RARASX
RAWEX
RAD1
RAD0
VDD1
DGND
AVCC
EFMI
DGND
VDD1
VDD1
DGND
BIN
EIN
FIN
AIN
AGND
TCG
SLDRR
SLDRF
TRDRR
TRDRF
X176KO
TEST2
FODRF
FODRR
TEST0
TEST1
WBI
VBAT
SYSD6
SYSD5
SYSD4
SYSD3
SYSD2
SYSD1
SYSD0
RSTX
DINTX
MCCK
COUT
SENSE
FOK
SFSY
SBSY
OPTCNT
DAPON
ADPON
VXI
X1I
X1O
DIN
DOUT
VDD3
DGND
LRCK
BCLK
DFCK
RAA10
EFMMON
CKSTP
PDCNT
INPGCK
INPGI
MCPGI
TEST1
TEST0
KHOLD
STOP
PLAY
RPLAY
DSPSCK
EJSW
GND
VCC
PRTC
GND
DO
DI
SK
CS
VCC
NC
RKEY
AVCC
FOK
SENSE
RESET
VCC
XTAL
EMPH0
INNSW
VSS
LDON
SYRS
SYRD
SYWR
SYD7
SYD6
XRST
EEPK
EPCS
AVSS
LDVAR
TEMP
HKEY2
HKEY1
SYRS
SYRD
SYWR
SYD7
SYD6
SYD5
SYD4
SYD3
SYD2
SYD1
SYD0
XRT
DINT
MCCK
CIN
LDCNT1
LDCNT2
VPD
DCNT1
EMPH1
EFMO
SPDRR
SPDRF
SLDRR
SLDRF
TRDRR
TRDRF
FODRR
FODRF
VCCENDEC
X176KO
EMPH1
BCLK
DIN
OPTCNT
ADPON
DAPON
DFCK
LRCK
ADDATA
DADATA
SWPUP
FOK
SENSE
HSTOP
HPLAY
HKEY1
JOG0
JOG1
HKEY2
HREC
DSPS
T
DSPS
C
DSPD
A
DGND
SDTIVDCMODE
DEM1
DEM0
AOUTL
AGND
VCOM
AOUTR VBVA
VRAD
VRDA
VCMR
AINR
AINL
VCML
MCLK
LRCK
SCLK
SDTO
PWAD
PWDA
VCC2R5V
DCNT1
RCAULT
MCPGIN
INPGCK
RCPCNT2
RCLED
DSPSCK
DSPSTB
DSPDAT
PDCNT
DISCPR
SPIN
CIN
PCNT2
DRY
DCI
INN
START
DINT
SENSE
FOK
XRT
JOG1
JOG0
INNSW
HSTOP
EMPH0
PBMUTE
PBAULT
BEEP
LDON
OPICGA
RFLAT
ELLVL
ELON
AUDATA
AUSCLK
EMPH0
HKEY1
HKEY2
TEMP
LDVAR
SYD5
SYD4
SYD3
SYD2
SYD1
SYD0
PCNT1
PHOLD
CIN
SPIN
DISCIN
DISCPR
DSPDAT
DSPSTB
PCNT2
VCC
HDON
VSS
ELON
RADAT
PBLAT
REC
DINT
Vref
SBO
SBCK
TEMON
TOTMON
FEMON
DADATA
ADDATA
X700KO
LDCNT1
LDCNT2
EFMO
TCRS
PLCK
ACRCER
SPDRR
SPDRF
RAA3
RAA2
RAA1
RAA0
SYRDX
SYRS
SYSD7
SYWRX
16BIT D-RAM
VCCDRAM
2.5V REGULATOR
RDATA
R824
390K
R826
220K
A6
A5
A4
I/O3
INPGIN
R207
680
+B
+B
+B
+B
+B
B
+B
C422
10/6.3
(Only Serial
No. 8110180)
(Only Serial
No. 81101800)
Page 32
MD-MS722/C/WMS721W
– 32 –
A
B
C
D
E
F
G
H
1
23456
• NOTES ON SCHEMATIC DIAGRAM can be found on page 39.
Figure 32 SCHEMATIC DIAGRAM (3/4)
P30
P32
P31
F800
1.00A,
63VDC
!
L702
L703
L704
L714
L713
L712
L456
L452
L454
L453
L457
L458
L711
C451
0.001
R765·766
MS722/MS722C
MS722W/MS721W(S)
/MS721W(BL)
10
27
2
1
DB
VREF
(From Serial
No. 81201801)
C803
0.1
C802
1
R807
100K
TP809
R808
1M
C808
0.1/16
R818
180K
R819
180K
R847
330K
R846
330K
R769 39K
R770
39K
R814
1K
C200
1
IC200
62FP2002
2V REGULATOR
3
2
1
C511
1
D800
1SS368
R802
4.7K
R810
6.8K
R809
2.2K
C813
0.1
R813
100K
IC842
7WH123FU
C-MOS LOGIC
8
7
6
5
4
3
2
1
C842
1
R893
1K
Q892
2SA17457
C481
0.1
TP484
TP485
TP483
TP482
TP481
TP772
TP771
TP466
TP467
TP468
R454
56K
R453
18K
R452
8.2K
R451
5.6K
R459
47K
R460
47K
R458
56K
R457
18K
R456
8.2K
R455
5.6K
R892
56
R891
2.2K
TP465
Q830
DTC144 TE
R830
100K
IC802
NDH8304P
8
7
6
5
4
3
2
1
D801
SB10015C
R844
100K
R831
180K
R832
220K
R843
100K
Q841
DTA144 TE
C837
0.1
C836
0.1
D836
1SS372
XC62HS02
POWER SUPPLY
MICROCOMPUTER
5
4
3
2
1
C830
1
C827
100P (CH)
C828
100P (CH)
IC820
IR3M09N
POWER DRIVE
9
8
7
12
11
10
6
5
4
3
2
1
R829
15K
C826
100/6.3
(Only Serial No. 81101800)
220/6.3
(From Serial No. 81201801)
C825
3.3/10
D821
F10J2E
L821
10 (CH)
IC821
CPH3303
C822
8P
R823
100K
R821
680K
R822
3.3M
C821
68P (CH)
C855
100P(CH)
R860
33K
R858
100K
C859
0.001
R859
15K
C858
100P(CH)
R851
10K
C831
1
100K
R852
C851
68P
(CH)
IC850
IR3M09N
POWER DRIVE
10
11
12
9
8
7
6
5
4
3
2
1
R855
270K
C752
0.082
R763
82
C765
0.22
R767
1K
R764
82
C766
0.22
R768
1K
L752
47µH
L751
47µH
TP726
TP725
TP724
TP723
TP722
TP721
TP728
TP727
TP729
D493
015Z5.1Y
D491
015Z5.1Y
C491
0.1/16
D494
15AZ7.5Y
D492
15AZ7.5Y
L491
4.7µH
R492
1K
C751
0.082
R765
R766
TP808
TP812
TP811
TP810
L710
0.47µH
TP804
R806
300K
C807
0.01
R805
680K
TP803
+B
TP801
IC801
HN1C03FU
CONSTANT
CURRENT DRIVE
6
5
4 3
2
1
015Z5.1Y
D802
R816
24K
C801
0.1
R804
680
TP805
R815
56K
R800
560
R801
2.2K
R803
27K
C800
1
C714
1
R714
10K
R753
120K
C721
3.3/10
C723
0.001
C735
0.001
C736
100
C724
0.001
TP712
TP713
TP711
J702
MIC IN
4
3
2
1
TP714
R723
6.8K
R724
6.8K
R713
10K
Q711
RN1444 A
R717
1K
C712
100P(CH)
C713
1
C715
0.1
TP703
TP705
TP708
TP701
TP709
IC701
IR3R54N
AUDIO AMP.
C703
0.01
R703
120K
C758
3.3/10
C755
0.01
C753
1
C702
10/6.3
R756
27K
C761
1
C762
1
R701
100
C756
0.68
R762
3.6K
R761
3.6K
R754
270K
R757
27K
C757
0.68
IC703
IR3R54N
AUDIO AMP.
C701
10/6.3
R702
100
C510
2.2
C509
2.2
R502
470
R501
470
C502
0.0022
C501
0.0022
C504
3.3/10
C503
3.3/10
TP500
L500
22µH
C508
1
C500
10/6.3
IC501
AK4519VF
AD/DA
CONVERTER
C722
3.3/10
C760
0.027
TP704
TP702
TP707
R715
100K
R716
100K
C734
0.1/16
C733
0.1/16
C754
1
R729
2.7K
R730
2.7K
C759
0.027
TP807
L851
4.7µH
IC851
CPH3403
C856
1/16
C854
0.01
R857
100K
D851
RB521S30
D852
F1J2F
C857
10(CH)
L852
10µH
C853
10P
R853
330K
R854
0.2M
D861
F10J2E
L861
4.7µH
C861
1/16
C862
1/16
C864
47/6.3
C869
47/6.3
L862
47µH
C868
1
C772
47/6.3
C771
47/6.3
L771
47µH
L871
0.47µH
C872
10
Q891
2SA17457
R871
18
D871
RB521S30
IC871
TK71345M
4.5V REGULATOR
(ON/OFF)
5
4 3
2
1
C871
1
R872
100K
C806
3.3/10
C805
100/6.3
C804
1
22/6.3(Only Serial No. 81101800)
10/6.3(From Serial No. 81201801)
TP463
TP462
TP459
TP458
TP457
TP456
TP455
TP464
TP454
TP461
TP451
TP452
TP453
24 2322
212019181716151413
101112
9
8
7
6
5
4 3 2 1
12
11
10
131415
161718192021
22
2324
9
8
7
6
5
4 3 2 1
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
CN451
7
6
5
4
3
2
1
CN482
24 23222120
17
16
191815
1413
10
1112
9
8
7
6 5 4 3 2 1
J701
OPTICAL
/LINE IN
9
8
7
5
4
3
2
1
C726
3.3/10
Q721
2SC4213 B
R725
100
C725
3.3/10
J703
REMOTE
CONTROL/
HEADPHONES
8
7
6
5
4
3
2
1
J801
DC IN
3
2
1
C833
0.33
R481
36K
R482
18K
C711
100P
(CH)
C727
1
R726
39K
R728
1K
C731
0.22
R727
8.2K
IC771
TK71225M
5
4 3
2
1
TP802
R72
8.2K
R712
5.6K
R719
8.2K
R711
5.6K
C773
0.22
C774
1
C775
0.01
C507
10/6.3
R500
4.7
C506
0.001
C505
0.001
Q842
DTA114YE
R849
180K
R845
330K
RKEY
RPLAY
RDATA
VCC1
INPGCK
OSCOUT
OSCIN
EAIN+
DB
EAIN-
VREF
OSC
ROSC
PWM
VCC
OUTGND
EAOUT
EAOUT
GND
OUT
VCC
PWM
STATE
ROSC
OSC
VREF
EAIN-
DB
EAIN+
OSCIN
OSCOUT
RI
LI
LI
RI
L-ch
R-ch
KEY
PLAY
LCD
LCD
DRIVER
1
7
1
KEY FLEXIBLE PWB UNIT
FLEXIBLE
PWB
FLEXIBLE
PWB
DISPLAY
VOL DOWN
REC
EDIT
P-MODE
JOG 1
JOG 2
GND
BASS
ENTER
STOP
SKIP DOWN
SKIP UP
PLAY
VOL UP
CHARACTER
VCC
MPH1
K
CNT
ON
ON
K
K
ATA
ATA
L
R
BATTERY
TERMINAL
HSTOP
HPLAY
HKEY1
JOG0
JOG1
HKEY2
HREC
DSPSTB
DSPSCK
DSPDAT
VCC
Vout
GND
GND
INPGIN
MCPGIN
DGND
SDTIVDCMODE
DEM1
DEM0
AOUTL
AGND
VCOM
AOUTR VBVA
VRAD
VRDA
VCMR
AINR
AINL
VCML
MCLK
LRCK
SCLK
SDTO
PWAD
PWDA
PBMUTE
RCAULT
RESET
BEEP
PBAULT
AUDATA
AUSCLK
R-CH
L-CH
ELLVL
ELON
STATE
R
P
HPLAY
HREC
INN
DRY
START
PHOLD
DCI
PCNT1
PCNT2
L-CH
R-CH
LOUT
LIHP
AGND
RIHP
ROUT
DGND
VEE
VCC
3
1
2
EMPH0
3
1
2
EXT.BATTERY
TERMINAL
1
2
3
ROUT
RIHP
LOUT
LIHP
AGND
DGND
VEE
VCC
18
2.5V REGULATOR
POWER SELECT
CHARGE DRIVE
RPLAY
3
1
2
RCPCNT2
R848
1M
R811
330K
R812
180K
D843
1SS361
D842
1SS361
R841
470K
D841
1SS361
R842
1K
R824
390K
R826
220K
+B
IC841
+B
+B
+B
+B
+B
+B
+B
+B
C841
(Only Serial
No. 81101800)
Page 33
MD-MS722/C/W/MS721W
– 33 –
7
8 9 10 11 12
• The numbers 1 to 18 are waveform numbers shown in page 40.
Figure 33 SCHEMATIC DIAGRAM (4/4)
0.7V
0.7V
0.7V
0.7V
1.29V
1.26V
0.7V
1.26V
1.26V
1.26V
1.26V
1.26V
2.52V
2.52V
0.18V
2.52V
2.52V
0V
0V
1.46V
2.34V
0V
0V
2.51V
1.26V
1.26V
1.26V
1.26V
1.26V
1.6V
1.26V
1.26V
1.26V
NC
1.26V
1.26V
0V
1.26V
1.26V
1.26V
1.26V
2.52V
0V
0V
1.26V
1.26V
1.26V
0V
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
37
38
39
40
41
42
43
44
45
46
47
48
IC101
VOLTAGE
NO.
PIN
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
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
IC601
VOLTAGE
NO.
PIN
2.5V
1.23V
1.35V
2.37V
1.71V
NC
0.9V
1.76V
0.9V
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
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
IC202
VOLTAGE
NO.
PIN
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
2.5V
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
IC501
VOLTAGE
NO.
PIN
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
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
IC701
VOLTAGE
NO.
PIN
1.25V
1.2V
0.96V
1V
0.95V
0V
3.55V
4.8V
2.47V
0.4V
1V
1V
1
2
3
4
5
6
7
8
9
10
11
12
IC820
VOLTAGE
NO.
PIN
1.25V
0.9V
1.22V
1.2V
1.17V
0V
0.64V
4.8V
0V
0.4V
1V
1V
1
2
3
4
5
6
7
8
9
10
11
12
IC850
VOLTAGE
NO.
PIN
4.88V
4.88V
4.93V
0V
0V
0V
4.5V
4.93V
1
2
3
4
5
6
7
8
IC842
VOLTAGE
NO.
PIN
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
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
IC703
VOLTAGE
NO.
PIN
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
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
IC901
VOLTAGE
NO.
PIN
2.8V
0V
0V
0V
0V
0V
–
0V
0V
0V
1
2
3
4
5
6
7
8
9
10
IC651
VOLTAGE
NO.
PIN
0V
0.24V
0V
0V
0.73V
0.73V
1
2
3
4
5
6
IC801
VOLTAGE
NO.
PIN
0V
0V
2.35V
0V
0V
2.35V
0V
0.91V
2.5V
0V
0.91V
2.35V
0V
4.54V
1
2
3
4
5
6
7
8
9
10
11
12
13
14
IC351
VOLTAGE
NO.
PIN
1V
2.5V
1.27V
0V
1.27V
1.27V
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
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
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
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
37
38
39
40
41
42
43
44
45
46
47
48
49
50
IC200
VOLTAGE
NO.
PIN
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
NO.
PIN
0V
2.48V
0V
2.33V
NC
0V
0V
0V
0V
2.35V
0V
2.35V
2.35V
2.35V
–
0V
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
2.35V
0V
2V
0V
0V
0V
2.35V
0V
2V
0V
0V
2.35V
0V
2.35V
0V
2.33V
0V
2.35V
2.35V
0.3V
2.35V
2.35V
2.27V
2.35V
2.35V
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
2.34V
1.47V
0V
0V
0V
0V
0V
0V
2.34V
0V
2V
2.35V
0V
0V
2.25V
2.35V
2.35V
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
37
38
39
40
41
42
43
44
45
46
47
48
49
50
IC401
VOLTAGE
NO.
PIN
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
NO.
PIN
2.35V
0V
–
–
0V
0V
0V
2.35V
1
2
3
4
5
6
7
8
IC402
VOLTAGE
NO.
PIN
0.22V
0.22V
0V
2.33V
2.5V
1
2
3
4
5
IC404
VOLTAGE
NO.
PIN
1.26V
0V
0V
2.5V
2.8V
1
2
3
4
5
IC771
VOLTAGE
NO.
PIN
0V
4.96V
4.92V
0V
2.35V
1
2
3
4
5
IC841
VOLTAGE
NO.
PIN
0V
0V
0V
4.5V
6.1V
1
2
3
4
5
IC871
VOLTAGE
NO.
PIN
2.35V
2.35V
0V
0V
1
2
3
4
IC431
VOLTAGE
NO.
PIN
Preform the measurement on
the IC401 pin 37 in the TEST
mode with GND short-circuited.
(LCD is in "TEST" state.)
Page 34
MD-MS722/C/WMS721W
– 34 –
A
B
C
D
E
F
G
H
1
23456
Figure 34 WIRING OF P.W.BOARD (1/5)
• The numbers 1 to 18 are waveform numbers shown in page 40.
: 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.
, : Through-hole connected to any items other than the ground in 6-layer PWB and the +B pattern.
(Only Serial No. 81101800)
C608
L608
L610
L609
C609
C610
R361
C351
D351
D352
C361
Q354
R601
R205
C205
R206
C124
R104
1
5
10
15 20
25
26
30
35
40
45
50
51
55
606570
75
76
80
85
90
95
100
C123
R101
C121
C353
1
7
8
5
10
14
Q353
Q351
C207
C100
IC351
C122
R103
R102
IC202
L100
C165
R154
C161
C357
Q101
R161
L171
C171
C172
C202
L202
1
6
7
12 13
18
19
24
L201
C201
IC201
C212
R222
C211
C442
C203
R204
C204
IC601
L601
L602
L603
L604
C604
C622
1
5
10
15
18
19
20253035
36
L651
C651
C603
L600
C600
C602
C601
R455
R456
R457
R426
C605
IC651
R425
R452
R454
R451
R453
R458
C837
D836
L771
C826
C803
C505
C506
R207
L204
XL201
C774
IC771
C773
1
1
3
4
5
5
10
12 13
15
20
24
L500
C500
C508
C507
R500
J701
OPTICAL/
LINE IN
J702
MIC IN
R717
C511
L710
IC871
L862
C868
C862
D861
C861
L861
IC851
C771
C869
C864
C772
R872
D852
1
56
10
C836
R808
C825
L821
D821
C200
IC200
IC802
F800
C806
L851
L852
D801
C856
C857
IC821
C775
C871
C808
R800
R809
1
1
34
4
5
8
6
R801
R803
IC801
R802
R810
J801
DC IN
D800
C804
J703
REMOTE CONTROL/
HEADPHONES
C805
R893
C727
R727
C731
R728
Q721
R726
C726
L704
L702
R725
R892
C715
Q892
R891
C872
Q891
Q711
13
45
R807
IC501
R351
Q352
L871
D871
C807
R806
R805
R804
D802
C725
MAIN PWB-A (BOTTOM VIEW)
L703
C736
C735
R424
5
7
8
6
3
4
12
Page 35
MD-MS722/C/W/MS721W
– 35 –
7
8 9 10 11 12
Figure 35 WIRING OF P.W.BOARD (2/5)
MAIN PWB-A (TOP VIEW)
L456
L452
L454
L453
L457
L458
L714
L713
L711
L712
C451
R414
1
25
26
30
35
40
45
50
51
55
6065
70
76
80
85
90
95
100
75
5101520
R907
1
4
5
8
C909
C908
R415
R413
R403
R908
C902
IC901
C911
R402
R906
R905
C903
R106
C103 C102
C112
1
1
22
5
10
12
13
15
20
30
35
36
37
4045
48
24
25
C104
R105
C111
SW401
EJECT
R405
R408
R407
1
3
4
5
IC404
R406
C401
XL401
CN451
1
1
18
16
R921
R922
R842
R818
R847
R459
C831
C802
C827
C828
R829
C830
R859
C858
C855
D851
IC820
IC850
C833
1
1
6
6
7
7
12
12
C853
R460
C851
R821
R822
R858
R851
R852
C821
C822
R824
C842
R812
R811
R844
IC842
R853
R823
Q841
R843
C757
C756
C504
C503
R431
IC431
C431
C759
1
1
23
4
4
5
8
C761
C762
C510
R501
C501
R502
R754
C502
R713
C758
C509
C734
C713
C711
R719
R715
C733
R716
C714
R714
R724
R729
R730
R720
1
510
12
13
1520
24
IC701
C701
R701
L751
C755
R753
R764
C766
C702
R702
C703
R703
R831
R768
C752
R766
L752
R765
R767
C754
R492
R841
D492
R814
C841
R816
C801
R815
Q842
Q830
R481
17
C481
R482
C800
C491
1
3
4
5
L491
D494
C751
D491
D493
R723
C723
C724
C721
C722
IC401
IC101
CN101
IC402
R412
CN601
R903
R401
1
11
10
15
20
5
R901
R902
C907
C906
C905
R904
R404
R411
C354
C910
C130
C106
C107
C110
R423
C109
R422
SW402
HOLD
C854
R860
R813
R756
R757
C760
C813
R832
R848
R845
R846
R819
R762
R770
R761
1
5
10
12
13
15
20
24
R857
R826
C859
R855
R854
D431
C712
R769
R712
R711
IC841
CN482
IC703
C753
R763
D841
D842
C765
D843
R849
R909
P38 6 - H
P38 4 - E, G
P38 6 - C
P38 1 - C
TP115
TP105
TP108
TP106
TP114
TP118
TP116
TP151
TP111
TP103
TP487
TP102
TP121
TP120
TP411
TP205
TP351
TP666
TP665
TP661
TP655
TP409
TP410
TP407
TP408
TP201
TP663
TP119
TP654
TP653
TP601
TP602
TP658
TP659
TP901
TP803
TP451
TP657
TP452
TP664
TP467
TP208
TP651
TP133
TP417
TP416
TP209
TP210
TP809
TP206
TP139
TP401
TP110
TP203
TP200
TP211
TP457
TP458
TP405
TP202
TP212
TP454
TP456
TP465
TP404
TP403
TP400
TP412
TP771
TP463
TP462
TP468
TP810
TP811
TP461
TP464
TP482
TP808
TP413
TP453
TP402
TP466
TP701
TP204
TP708
TP707
TP500
TP702
TP703
TP704
TP712
TP713
TP714
TP772
TP728
TP729
TP723
TP807
TP414
TP725
TP724
TP805
TP484
TP801
TP802
TP132
TP207
TP130
TP131
TP100
TP145
TP122
TP109
TP144
TP117
TP101
TP660
TP662
TP610
TP652
TP455
TP656
TP812
TP406
TP415
TP709
TP705
TP485
TP483
TP481
TP804
TP459
TP722
TP726
TP727
TP721
TP711
2
1
9
13
14
15
17
18
10
16
11
BATTERY,–
(221)
EXT. BATTERY
(230)
BATTERY,+
(219)
KEY SWITCH
FLEXIBLE UNIT
MECHANISM
FLEXIBLE PWB
PICKUP
FLEXIBLE PWB
LCD
Page 36
MD-MS722/C/WMS721W
– 36 –
A
B
C
D
E
F
G
H
1
23456
Figure 36 WIRING OF P.W.BOARD (3/5)
• The numbers 1 to 18 are waveform numbers shown in page 40.
: 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.
, : Through-hole connected to any items other than the ground in 6-layer PWB and the +B pattern.
(From Serial No. 81201801)
C608
L608
L610
L609
C609
C610
R361
C351
D351
D352
C361
Q354
R601
R205
C205
R206
C124
R104
1
5
10
15 20
25
26
30
35
40
45
50
51
55
606570
75
76
80
85
90
95
100
C123
R101
C121
C353
1
7
8
5
10
14
Q353
Q351
C207
C100
IC351
C122
R103
R102
IC202
L100
C165
R154
C161
C357
Q101
R161
L171
C171
C172
C202
L202
1
6
7
12 13
18
19
24
L201
C201
IC201
C212
R222
C211
C203
R204
C204
IC601
L601
L602
L603
L604
C604
C622
1
5
10
15
18
19
20253035
36
L651
C651
C603
L600
C600
C602
C601
R455
R456
R457
R426
C605
IC651
R425
R452
R454
R451
R453
R458
C837
D836
L771
C826
C803
C505
C506
R207
L204
XL201
C774
IC771
C773
1
1
3
4
5
5
10
12 13
15
20
24
L500
C500
C508
C507
R500
J701
OPTICAL/
LINE IN
J702
MIC IN
R717
C511
L710
IC871
L862
C868
C862
D861
C861
L861
IC851
C771
C869
C864
C772
R872
D852
1
56
10
C836
R808
C825
L821
D821
C200
IC200
IC802
F800
C806
L851
L852
D801
C856
C857
IC821
C775
C871
C808
R800
R809
1
1
34
4
5
8
6
R801
R803
IC801
R802
R810
J801
DC IN
D800
C804
J703
REMOTE CONTROL/
HEADPHONES
C805
R893
C727
R727
C731
R728
Q721
R726
C726
L704
L702
R725
R892
C715
Q892
R891
C872
Q891
Q711
13
45
R807
IC501
R351
Q352
L871
D871
C807
R806
R805
R804
D802
C725
MAIN PWB-A (BOTTOM VIEW)
L703
C736
C735
R424
5
7
8
6
3
4
12
Page 37
MD-MS722/C/W/MS721W
– 37 –
7
8 9 10 11 12
Figure 37 WIRING OF P.W.BOARD (4/5)
MAIN PWB-A (TOP VIEW)
L456
L452
L454
L453
L457
L458
L714
L713
L711
L712
C451
R414
1
25
26
30
35
40
45
50
51
55
6065
70
76
80
85
90
95
100
75
5101520
R907
1
4
5
8
C909
C908
R415
R413
R403
R908
C902
IC901
C911
R402
R906
R905
C903
R106
C103 C102
C112
1
1
22
5
10
12
13
15
20
30
35
36
37
4045
48
24
25
C104
R105
C111
SW401
EJECT
R405
R408
R407
1
3
4
5
IC404
R406
C401
XL401
CN451
1
1
18
16
R921
R922
R842
R818
R847
R459
C831
C802
C827
C828
R829
C830
R859
C858
C855
D851
IC820
IC850
C833
1
1
6
6
7
7
12
12
C853
R460
C851
R821
R822
R858
R851
R852
C821
C822
R824
C842
R812
R811
R844
IC842
R853
R823
Q841
R843
C757
C756
C504
C503
R431
IC431
C431
C759
1
1
23
4
4
5
8
C761
C762
C510
R501
C501
R502
R754
C502
R713
C758
C509
C734
C713
C711
R719
R715
C733
R716
C714
R714
R724
R729
R730
R720
1
510
12
13
1520
24
IC701
C701
R701
L751
C755
R753
R764
C766
C702
R702
C703
R703
R831
R768
C752
R766
L752
R765
R767
C754
R492
R841
D492
R814
C841
R816
C801
R815
Q842
Q830
R481
17
C481
R482
C800
C491
1
3
4
5
L491
D494
C751
D491
D493
R723
C723
C724
C721
C722
IC401
IC101
CN101
IC402
R412
CN601
R903
R401
1
11
10
15
20
5
R901
R902
C907
C906
C905
R904
R404
R411
C354
C910
C130
C106
C107
C110
R423
C109
R422
SW402
HOLD
C854
R860
R813
R756
R757
C760
C813
R832
R848
R845
R846
R819
R762
R770
R761
1
5
10
12
13
15
20
24
R857
R826
C859
R855
R854
D431
C712
R769
R712
R711
IC841
CN482
IC703
C753
R763
D841
D842
C765
D843
R849
R909
P38 6 - H
P38 4 - E, G
P38 6 - C
P38 1 - C
TP115
TP105
TP108
TP106
TP114
TP118
TP116
TP151
TP111
TP103
TP487
TP102
TP121
TP120
TP411
TP205
TP351
TP666
TP665
TP661
TP655
TP409
TP410
TP407
TP408
TP201
TP663
TP119
TP654
TP653
TP601
TP602
TP658
TP659
TP901
TP803
TP451
TP657
TP452
TP664
TP467
TP208
TP651
TP133
TP417
TP416
TP209
TP210
TP809
TP206
TP139
TP401
TP110
TP203
TP200
TP211
TP457
TP458
TP405
TP202
TP212
TP454
TP456
TP465
TP404
TP403
TP400
TP412
TP771
TP463
TP462
TP468
TP810
TP811
TP461
TP464
TP482
TP808
TP413
TP453
TP402
TP466
TP701
TP204
TP708
TP707
TP500
TP702
TP703
TP704
TP712
TP713
TP714
TP772
TP728
TP729
TP723
TP807
TP414
TP725
TP724
TP805
TP484
TP801
TP802
TP132
TP207
TP130
TP131
TP100
TP145
TP122
TP109
TP144
TP117
TP101
TP660
TP662
TP610
TP652
TP455
TP656
TP812
TP406
TP415
TP709
TP705
TP485
TP483
TP481
TP804
TP459
TP722
TP726
TP727
TP721
TP711
2
1
9
13
14
15
17
18
10
16
11
BATTERY,–
(221)
EXT. BATTERY
(230)
BATTERY,+
(219)
KEY SWITCH
FLEXIBLE UNIT
MECHANISM
FLEXIBLE PWB
PICKUP
FLEXIBLE PWB
LCD
Page 38
MD-MS722/C/WMS721W
– 38 –
Figure 36 WIRING OF P.W.BOARD (5/5)
A
B
C
D
E
F
G
H
1
23456
TO MAIN PWB
P35,37 8 - H
OPTICAL PICKUP UNIT (15)
M902
SLED MOTOR
M901
SPINDLE MOTOR
M903
LIFT MOTOR
MECHANISM
FLEXIBLE PWB UNIT (8)
MAGNETIC HEAD
FLEXIBLE PWB (23)
MAGNETIC HEAD
(32)
KEY FLEXIBLE PWB ASS'Y (248)
KEY FLEXIBLE PWB ASS'Y (248)
CN101
TO MAIN PWB
P33 11 - H
CN601
TO MAIN PWB
P35,37 12 - D
CN451
TO MAIN PWB
P35,37 12 - D
CN451
TO MAIN PWB
P35,37 11 - A
LCD (249)
CN482
MD-MS722/C/W
MD-MS721W
PH901
SW901 SW902
Page 39
MD-MS722/C/W/MS721W
– 39 –
SW401 EJECT OFF—ON
SW402 HOLD OFF—ON
SW901 DISC IN OFF—ON
SW902 DISC PROTECT OFF—ON
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
• 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.
POSITION
REF. NO
DESCRIPTION
Figure 39 TYPES OF TRANSISTOR AND DIODE
SB0209CP
1SS372
015Z5.1Y
015AZ7.5Y
1SS368
RB521S30
2SA17457
2SC4213 B
2SK2909
2SK2911
DTA114 YE
DTA144 TE
DTC144 TE
RN1444 A
TOP
VIEW
TOP VIEW
TOP VIEW
F10J2E
RB491D
SB10015C
TOP VIEW
TOP VIEW
B
(G)
(3)
E
(S)
1
C
(D)
(2)
1SS361
TOP VIEW
F1J2F
Page 40
MD-MS722/C/WMS721W
– 40 –
WAVEFORMS OF MD CIRCUIT
NORM:200kS / s
1994 / 12 / 15 22:54:19
=Filter= =Offset= =Record Length=
Smoothiing : OFF
BW : FULL
CH1 : 0.00V
CH2 : 0.000V
Main : 10K
Zoom : 10K
CH3 : 0.00V
CH4 : 0.00V
=Trigger=
Mode : NORMAL
Type : EDGE CH4
Detay : 0.0ns
Hold OFF : MINIMUM
T
TP208
(FEOUT)
CK204
(FOK)
TP122
(F+)
CK205
(SENSE)
Stopped
CH1=1mV
DC 10:1
CH3=5V
DC 10:1
CH4=2V
DC 10:1 (50ms/div)
50ms/div
CH2=500mV
DC 10:1
T
1
4
3
2
1
2
3
4
NORM:100MS / s
1994 / 12 / 16 00:24:17
=Filter= =Offset= =Record Length=
Smoothiing : OFF
BW : FULL
CH1 : 0.00V
CH2 : 0.00V
Main : 5K
Zoom : 5K
CH3 : 0.00V
CH4 : 0.00V
=Trigger=
Mode : AUTO
Type : EDGE CH3
Detay : 0.0ns
Hold OFF : MINIMUM
T
SDTi
MCLK
SCLK
LRCK
Stopped
CH1=2V
DC 10:1
CH3=2V
DC 10:1
CH4=2V
DC 10:1 (50us/div)
50us/div
CH2=2V
DC 10:1
T
1
4
3
2
5
6
7
8
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
ENV
1994 / 12 / 15 23:31:21
=Filter= =Offset= =Record Length=
Smoothiing : OFF
BW : FULL
CH1 : 0.00V
CH2 : 0.00V
Main : 10K
Zoom : 10K
CH3 : 0.00V
CH4 : 0.00V
=Trigger=
Mode : NORMAL
Type : EDGE CH1
Detay : 0.0ns
Hold OFF : MINIMUM
T
SPDRR
TP601
(VM)
Stopped
CH1=2V
DC 10:1 (50ms/div)
50ms/div
CH2=2V
DC 10:1
T
1
2
12
13
FULL 20MHz
BandwidthONSmooth
OFF
1994 / 12 / 18 09:26:46
=Filter= =Offset= =Record Length=
Smoothiing : OFF
BW : FULL
CH1 : 0.00V
CH2 : 0.00V
Main : 10K
Zoom : 10K
CH3 : 0.00V
CH4 : 0.00V
=Trigger=
Mode : AUTO
Type : EDGE CH2
Detay : 0.0ns
Hold OFF : MINIMUM
T
TP208
(FEOUT)
TP210
(TEOUT)
TP657
(SL+)
TP656
(SL-)
Stopped
CH1=2V
DC 10:1
CH3=2V
DC 10:1
CH4=2V
DC 10:1 (1s/div)
1s/div
CH2=2V
DC 10:1
1
4
3
2
ENV
1
10
14
15
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 08:57:26
=Filter= =Offset= =Record Length=
Smoothiing : OFF
BW : FULL
CH1 : 0.00V
CH2 : 0.00V
Main : 10K
Zoom : 10K
CH3 : 0.000V
CH4 : 0.0V
=Trigger=
Mode : NORMAL
Type : EDGE CH1
Detay : 0.0ns
Hold OFF : MINIMUM
T
TP201
(EFM)
TP210
(TEOUT)
TP209
(TOTAL)
Stopped
CH1=2V
DC 10:1 (2ms/div)
2ms/div
CH2=2V
DC 10:1
1
2
ENV
T
CH3=500mV
DC 10:1
9
10
11
1994 / 12 / 15 09:58:45
=Filter= =Offset= =Record Length=
Smoothiing : OFF
BW : FULL
CH1 : 0.00V
CH2 : 0.00V
Main : 10K
Zoom : 10K
CH3 : 0.00V
CH4 : 0.00V
=Trigger=
Mode : AUTO
Type : EDGE CH1
Detay : 0.0ns
Hold OFF : MINIMUM
T
TP208
(FEOUT)
TP210
(TEOUT)
SPDRR
TP601
(VM)
Stopped
CH1=2V
DC 10:1
CH3=2V
DC 10:1
CH4=2V
DC 10:1 (1s/div)
1s/div
CH2=2V
DC 10:1
1
3
4
2
ENV
1
10
12
13
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
1994 / 12 / 15 09:10:03
=Filter= =Offset= =Record Length=
Smoothiing : OFF
BW : FULL
CH1 : 0.000V
CH2 : 0.00V
Main : 4K
Zoom : 4K
CH3 : 0.000V
CH4 : 0.0V
=Trigger=
Mode : NORMAL
Type : EDGE CH1
Detay : 0.0ns
Hold OFF : MINIMUM
T
CK109
(HPFO)
CK108
(WBO)
Stopped
CH1=500mV
DC 10:1 (20us/div)
20us/div
CH2=2V
DC 10:1
1
2
ENV
16
17
1994 / 12 / 15 21:54:52
=Filter= =Offset= =Record Length=
Smoothiing : OFF
BW : FULL
CH1 : 0.00V
CH2 : 0.00V
Main : 10K
Zoom : 10K
CH3 : 0.00V
CH4 : 0.00V
=Trigger=
Mode : NORMAL
Type : EDGE CH2
Detay : 0.0ns
Hold OFF : MINIMUM
T
T
TP201
(EFM)
TP210
(TEOUT)
TP121
(T-)
Stopped
CH1=2V
DC 10:1
CH3=1V
DC 10:1
CH4=1V
DC 10:1 (500us/div)
500us/div
CH2=2V
DC 10:1
1
3
4
2
ENV
9
10
18
For TP208, TP209, and TP210, use the specific LPF, and
observe the waveform.
1000P
10K
TP
Measurement
When watching the EEM monitor (TP201)
Set MSL from 00H to 80H with EEPROM control setting. After
completion restore 00H.
Page 41
MD-MS722/C/W/MS721W
– 41 –
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?
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".
No
Yes
Does the display operate normally?
Is playback state set?
Yes
Perform the check stated in item "Playback state connot be
set".
No
Is audio output normal?
Yes
Perform the check stated in item "Audio playback circuit".
No
Is recording/playback operation normal?
Yes
Perform the check stated in item "Recording/playback
operation".
No
• Power is not turned on when the / button
is pressed.
No
No
Yes
Check the periphery of remote controller and main unit
headphone terminal (J703) and IC401.
No
Is the pin 55 of IC401 in H state?
Is operation normal when the main body button is pressed?
Check the position of Hold switch.
Is power turned on when the remote control button is
pressed?
No
Are IC401 pin 3 set to "L"?
Check the DISC IN (SW901) switch of mechanism PWB.
Yes
Yes
Does the pin 66 of IC401 oscillate?
No
Replace XL401.
Page 42
MD-MS722/C/WMS721W
– 42 –
Yes
Check whether there is defective solder joint of audio signal
line between IC703 and J703
No
Yes
Is audio wavefrom output from J703 pins 3 and 4.
Check the pins 5 and 6 of IC703.
No
Yes
Is audio wavefrom output from IC703 pins 18 and 19.
Check IC201 pins 70 to 72, pin 74 and IC501 pins 9, 10, 11,
15
No
• Abnormal display
No
Yes
Are the pin7 (VCC) and pin 6 (GND) normal?
Is waveform output from IC 401 pins 45 to 47?
Is waveform output from CNS 482 pins 1 to 3?
• Playback state cannot be set
Is initialization performed normally in case of high- reflection
disc playback?
Yes
Check between IC401 and
CNS482.
No
Check the periphery of IC401.
Does the playback time display advance?
Yes
Position check in INNER mode
Check IC201 and IC202 connection line.
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?).
Check the lead-in photointerrupter, mechanical flex
PWB soldering and CNS601 connection.
No
Ia an attempt to repeat repeatedly the TOC part performed
on the low-reflection disc?
Yes
No
No
Replace the disc.
No
• Audio playback clrcult
When it has been ascertained that the address up to cluster address is normal in the TEST mode.
Yes
Is audio wavefrom output from IC501 pins 19 and 20?
Check headphones jack,and periphery of headphone.
Although the playback time display is acting., no sound is given during playback in the normal mode.
Check for pattern breakage of flexible PWB, check for
defects of display microcomputer (replace the display unit).
Page 43
MD-MS722/C/W/MS721W
– 43 –
• The spindle motor fails to run.Does the head move
No
Does the waveform appear on the IC201 pins 24 and 25 after
TEST mode AUTO2 completion and in this state?
Check the IC201 periphery.
Yes
Does waveform appear on the IC601 pin 13?
Does waveform appear on IC901 pins 1, 19 and 20?
Replace the spindle motor.
Yes
No
L608, IC201, IC901, CN601 and flex, etc. soldering check
No
Replace. IC601
Yes
• Recording/playback operation
Insert a low reflection disc, and ascertain audio output by normal playback, and then set TEST REC mode.
Yes
Does the head move down, failing to start record even
when the continuous record mode is set after address?
Check voltage of pins 52 and 53 of IC201, pins 2, 4, 7, and 9 of
IC651, pins 3 and 14 of CNS601. Check whether disc is recordinhibited.
No
Does the RF waveform of TP201 appear when playback is
Does level of pins 34 of IC401 and pin 17 of IC101 change
depending on record and playback?
Is RF pattern output from IC201 pin 50?
Yes
No
Check for soldering failure of IC201 .
No
Check periphery of IC401 and IC101.
Check whether there is any damage in IC101, periphery of
laser diode.
Yes
Check for defects of IC351 in head drive flexible PWB,
Q351 to 354, head, flexible PWB.
No
Yes
Is audio monitor output given in normal mode LINE IN
record?
Check waveforms of pins 9 to 12 of IC501, pins 70 to 73 of
IC201.
Is waveform obtained on IC501 pins 3 and 6?
No
Yes
Check whether the pin 7 of IC501 and the pin 59 of IC201 are in
H state.
No
No
Does voltage on the IC701 pins 13 to 15 change in case of
record VOLUME UP/DWN?
Is audio waveform observed on the pins 18 and 19 of
IC703?
Yes
Check whether input waveform is observed on the pins 5
and 6 of IC703.
Yes
Page 44
MD-MS722/C/WMS721W
– 44 –
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
IC401 RH-iX2772AF03(IX2772AF):System Microcomputer (1/2)
FUNCTION TABLE OF IC
Pin No.
FunctionPort Name Terminal Name
Input/Output
In this unit, the terminal with asterisk mark (*) is (open) terminal which is not connected to the outside.
Page 45
MD-MS722/C/W/MS721W
– 45 –
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
IC401 RH-iX2772AF03(IX2772AF):System Microcomputer (2/2)
Pin No.
FunctionPort Name Terminal Name
Input/Output
In this unit, the terminal with asterisk mark (*) is (open) terminal which is not connected to the outside.
Page 46
MD-MS722/C/WMS721W
– 46 –
— M E M O —
Page 47
MD-MS722/C/W/MS721W
– 47 –
PARTS GUIDE
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.
“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
Explanation of capacitors/resistors parts codes
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
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.
MD-MS722
MD-MS722C
MD-MS722W
MD-MS721W(BL)
MD-MS721W(S)
MODEL
Page 48
PRICE
RANK
DESCRIPTIONNO.
PARTS CODE NO. PARTS CODE
PRICE
RANK
DESCRIPTION
MD-MS722/C/W/MS721W
– 1 –
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,
IX2772AF
(Only Serial No.811ЧЧЧЧЧ)
IC401 RH-IX2772AF04 J AW System Microcomputer,
IX2772AF
(From Serial No.812ЧЧЧЧЧ)
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,
HN1C03FU
IC802 VHINDH8304P-1 J AH Power Select Charge Drive,
NDH8304P
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,
XC62HS02
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
(ON/OFF),TK71345M
IC901 VHIBA6965AF-1 J AM 3-Phase Brush Leess Driver,
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
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
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,
Tantalume
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,
Tantalume
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,
Tantalume
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,
Tantalume
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,
Tantalume
(Only Serial No.81101800)
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,
Tantalume
C501,502 VCKYCY1HB222K J AA 0.0022 µF,50V
C503,504 VCSATA1AJ335M J AB 3.3 µF,10V,Electrolytic,
Tantalume
C505,506 VCKYCY1HB102K J AA 0.001 µF,50V
C507 VCSATA0JJ106M J AD 10 µF,6.3V,Electrolytic,
Tantalume
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
Page 49
NO.
PRICE
RANK
DESCRIPTIONPARTS CODE
NO. PARTS CODE
PRICE
RANK
DESCRIPTION
MD-MS722/C/W/MS721W
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,
Tantalume
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,
Tantalume
C723,724 VCKYCY1HB102K J AA 0.001 µF,50V
C725,726 VCSATA1AJ335M J AB 3.3 µF,10V,Electrolytic,
Tantalume
C727 VCKYTV1CF105Z J AB 1 µF,16V
C731 VCKYCY1CF224Z J AB 0.22 µF,16V
C733,734 RC-KZ1182AFZZ J AB 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,
Tantalume
C759,760 VCKYCY1CB273K J AA 0.027 µF,16V
C761,762 VCKYCY0JB105K J AC 1 µF,6.3V
C765,766 RC-KZ1204AFZZ J AB 0.22 µF,10V,Electrolytic
C771,772 VCSATE0JJ476M J AD 47 µF,6.3V,Electrolytic,
Tantalume
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
(From Serial No.81201801)
C826 VCEAPW0JW107M J AD 100 µF,6.3V,Electrolytic
(Only Serial No.81101800)
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,
Tantalume
(From Serial No.81201801)
C841 VCSATA0JJ226M J 22 µF,6.3V,Electrolytic,
Tantalume
(Only Serial No.81101800)
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,
Tantalume
C868 VCKYTV1CF105Z J AB 1 µF,16V
C869 VCSATE0JJ476M J AD 47 µF,6.3V,Electrolytic,
Tantalume
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
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
RESISTORS
VRS-CY1JB000J J AA 0 ohm,Jumper,0.8×1.55mm,
Green
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
[MS722W/MS721W (S)/
MS721W (BL)]
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
– 2 –
Page 50
PRICE
RANK
DESCRIPTIONNO.
PARTS CODE NO. PARTS CODE
PRICE
RANK
DESCRIPTION
MD-MS722/C/W/MS721W
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
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-
phones
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]
MECHANICAL PARTS
1 NGERH0597AFZZ J AC Wheel,Drive
2 NSFTD0331AFFT J AE 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
(Not Replacement Item)
8- 2(SW901) QSW-M0169AFZZ J AD Switch,Push Type [Disc In]
8- 3(SW902) QSW-M0170AFZZ J AD Switch,Push Type [Disc Protect]
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]
CABINET PARTS
201 CCABB2882AF01 J AT Front Cabinet Ass’y
[MS722/MS722C/MS722W]
201 CCABB2882AF03 J AT Front Cabinet Ass’y
[MS721W (S)/MS721W (BL)]
201- 1 ———— — Front Cabinet
(Not Replacement Item)
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
[MS722/MS722C/MS722W]
202 CCABC4378AF01 J AX Top Cabinet Ass’y [MS721W (S)]
202 CCABC4378AF03 J AY Top Cabinet Ass’y
[MS721W (BL)]
202- 1 ———— — Top Cabinet
(Not Replacement Item)
202- 2 LHLDL3061AFSA J AE Holder,Strap
203 GCABA2882AFSA J AE Center Cabinet
[MS722/MS722C/MS722W]
203 GCABA2882AFSB J AE Center Cabinet
[MS721W (S)/MS721W (BL)]
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
[MS721W (S)]
204 CCABD4389AF03 J Bottom Cabinet Ass’y
[MS721W (BL)]
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
[MS722/MS722C/MS722W]
205 GCOVA2284AFSB J AD Cover,Eject
[MS721W (S)/MS721W (BL)]
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
Battery Terminal
– 3 –
Page 51
NO.
PRICE
RANK
DESCRIPTIONPARTS CODE
NO. PARTS CODE
PRICE
RANK
DESCRIPTION
MD-MS722/C/W/MS721W
215 PCUSG0675AFZZ J AB Cushion B
216 PGUMS0729AFZZ J AB Cushion Mechanism A
217 PSHEZ0989AFZZ J AB Sheet,Extension Battery
Terminal
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
[MS722/MS722C/MS722W
Only]
223 PCUSG0676AFZZ J AB Cushion C
[MS722/MS722C/MS722W
Only]
225 PSHEZ0990AFZZ J AB Sheet,Ring
[MS722/MS722C/MS722W
Only]
228 PFLT-1127AFZZ J AA PU Felt
229 GFTAB1359AFSA J AE Lid,Battery
[MS722/MS722C/MS722W/
MS721W (S)]
229 GFTAB1359AFSB J AE Lid,Battery [MS721W (BL)]
230 QTANZ9164AFFQ J AH Extension Battery Terminal
231 GCOVH1301AFSA J AD Guide,Disc
[MS722/MS722C/MS722W
Only]
232 PSHEZ0965AFZZ J AC Sheet,Disc Guide
[MS722/MS722C/MS722W
Only]
233 GCOVH1302AFZZ J AD Cover,LCD
[MS722/MS722C/MS722W
Only]
234 HDECQ0580AFSA J AK Decoration Plate
[MS722/MS722C/MS722W]
234 HDECQ0583AFSA J AH Decoration Plate
[MS721W (S)/MS721W (BL)]
235 HDECQ0578AFSA J AK Decoration Ring A
[MS722/MS722C/MS722W
Only]
236 HDECQ0579AFSA J AF Decoration Ring B
[MS722/MS722C/MS722W
Only]
237 JKNBZ2130AFSA J AF Knob,Function A
[MS722/MS722C/MS722W]
237 JKNBZ2144AFSA J AK Knob,Function A
[MS721W (S)/MS721W (BL)]
238 JKNBZ2131AFSA J AF Knob,Function B
[MS722/MS722C/MS722W]
238 JKNBZ2145AFSA J AF Knob,Function B
[MS721W (S)/MS721W (BL)]
239 JKNBZ2132AFSA J AE Knob,Function C
[MS722/MS722C/MS722W]
239 JKNBZ2146AFSA J AF Knob,Function C
[MS721W (S)/MS721W (BL)]
240 JKNBZ2133AFSA J AE Knob,Function D
[MS722/MS722C/MS722W
Only]
241 JKNBZ2134AFSA J AE Knob,Rec
[MS722/MS722C/MS722W]
241 JKNBZ2147AFSA J AC Knob,Rec
[MS721W (S)/MS721W (BL)]
242 JKNBZ2135AFSA J AK Knob,Jog
[MS722/MS722C/MS722W
Only]
243 JKNBZ2136AFSA J AE Knob,FF/FR
[MS722/MS722C/MS722W
Only]
244 JKNBZ2137AFSA J AE Knob,Play
[MS722/MS722C/MS722W
Only]
246 PSHEZ0967AFZZ J AC Sheet,Transparent Plate
[MS722/MS722C/MS722W]
246 PSHEZ0973AFZZ J AC Sheet,Transparent Plate
[MS721W (S)/MS721W (BL)]
248 RUNTK0489AFZZ J AU Key Flexible PWB Ass’y
[MS722/MS722C/MS722W]
248 RUNTK0493AFZZ J AQ Key Flexible PWB Ass’y
[MS721W (S)/MS721W (BL)]
249 RUNTZ0704AFZZ J AY LCD [MS722/MS722C/MS722W]
249 RUNTZ0705AFZZ J AY LCD
[MS721W (S)/MS721W (BL)]
251 PSHEZ0994AFZZ J AB Sheet,Switch,B
[MS722/MS722C/MS722W
Only]
252 PGUMS0730AFZZ J AB Cushion,Mechanism B
[MS722/MS722C/MS722W
Only]
253 HDECQ0584AFSA J AQ Alumi Decoration Plate
[MS721W (S) Only]
253 HDECQ0584AFSB J AR Alumi Decoration Plate
[MS721W (BL) Only]
254 LHLDZ1747AFZZ J AC Holder,LCD
[MS721W (S)/MS721W (BL)
Only]
255 PSHEZ0974AFZZ J AD Sheet,Knob
[MS721W (S)/MS721W (BL)
Only]
256 PSHEZ0998AFZZ J AC Sheet,Eject Bracket
259 PCUSG0679AFZZ J AB Cushion A
[MS721W (S)/MS721W (BL)
Only]
260 PCUSG0680AFZZ J AB Cushion B
[MS721W (S)/MS721W (BL)
Only]
261 PCUSG0681AFZZ J AB Cushion C
[MS721W (S)/MS721W (BL)
Only]
262 PFLT-1143AFZZ J AB Felt
[MS721W (S)/MS721W (BL)
Only]
263 PSHEZ0999AFZZ J AB Sheet,LCD Flexible
[MS722/MS722C/MS722W
Only]
264 PSHEZ1004AFZZ J AB Sheet,Volume Knob
[MS721W (S)/MS721W (BL)
Only]
265 TLABS0497AFZZ J AD Caution,Laser
[MS722C/MS722W/MS721W
(S)/MS721W (BL) Only]
266 TLABS0503AFZZ J AC Label,Laser
[MS722C/MS722W/MS721W
(S)/MS721W (BL) Only]
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
PACKING PARTS [MS722C/W/MS721W ONLY]
SPAKA2679AFZZ J AD Packing Add.
[MS722W/MS721W (S)/
MS721W (BL)]
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
[MS722W/MS721W (S)/
MS721W (BL) Except for
Australia/New Zealand]
SPAKZ0475AFZZ J AD Spacer,Operation Manual
[MS722W/MS721W (S)/
MS721W (BL) for Australia/New
Zealand]
SPAKZ0489AFZZ J Pad,AC Adaptor [MS722C]
SPAKZ0498AFZZ J Packing Add.,Unit
SPAKZ0507AFZZ J Pad,AC Adaptor
[MS722W/MS721W (S)/
MS721W (BL) for Australia/New
Zealand]
SPAKZ0509AFZZ J Packing Add.,Unit
SSAKP0116AFZZ J AD Paper Bag,Unit
ACCESSORIES
GCASZ0086AFSA J AX Battery Case
PCAPH8107AFZZ J AD Cushion,Headphones
[MS722W/MS721W (S)/
MS721W (BL)]
– 4 –
Page 52
PRICE
RANK
DESCRIPTIONNO.
PARTS CODE NO. PARTS CODE
PRICE
RANK
DESCRIPTION
MD-MS722/C/W/MS721W
QCNWG0382AFZZ J AK Connecting Cord,RCA Type
QCNWG0422AFZZ J AQ Connecting Cord,Optical Type
QPLAGA0250AFZZ J Plug,AC Adaptor
[MS722W/MS721W (S)/
MS721W (BL)]
! RADPA3489AFZZ J AV AC Adaptor [MS722/MS722C]
! RADPA5402AFZZ J BF AC Adaptor
[MS722W/MS721W (S)/
MS721W (BL) Except for
Taiwan/Australia/New Zealand/
Hong Kong]
! RADPA5403AFZZ J BF AC Adaptor
[MS722W/MS721W (S)/
MS721W (BL) for Taiwan]
! RADPA6435AFZZ J BG AC Adaptor
[MS722W/MS721W (S)/
MS721W (BL) for Australia/New
Zealand]
! RADPA8493AFZZ J BH AC Adaptor
[MS722W/MS721W (S)/
MS721W (BL) for Hong Kong]
RPHOH0176AFZZ J AR Headphones
[MS722W/MS721W (S)/
MS721W (BL)]
RPHOH0185AFZZ J AW Headphones [MS722/MS722C]
RRMCW0035AFSA J BC Remote Control
[MS721W (S)/MS721W (BL)]
RRMCW0038AFSA J BC Remote Control
[MS722/MS722C/MS722W]
TCAUH0341AFZZ J AD Caution,Headphones
TCAUZ0450AFZZ J AD Caution Label,Operation Manual
[MS722W/MS721W (S)/
MS721W (BL) for Taiwan Only]
TGANE1220AFZZ J AB Warranty Card
[MS722W/MS721W (S)/
MS721W (BL) for Australia/New
Zealand]
TGANE1230AFZZ J Warranty Card
[MS722W/MS721W (S)/
MS721W (BL) for Philippines]
TGANZ1096AF01 J Warranty Card
[MS722W for Taiwan]
TINSE1642AFZZ J Operation Manual
[MS721W (S)/MS721W (BL) for
Australia/New Zealand]
TINSE1643AFZZ J AG Operation Manual
[MS722W for Australia/New
Zealand]
TINSK0369AFZZ J Operation Manual [MS722C]
TINSZ1381AFZZ J AG Operation Manual [MS722]
TINSZ1382AFZZ J AD Quick Guide [MS722 Only]
TINSZ1383AFZZ J AN Operation Manual
[MS722W Except for Australia/
New Zealand]
TINSZ1386AFZZ J AN Operation Manual
[MS721W (S)/MS721W (BL)
Except for Australia/New
Zealand]
TLABG0527AFZZ J AC Label,Hong Kong
[MS722W/MS721W (S)/
MS721W (BL) for Hong Kong
Only]
TLABH0699AFZZ J Label,Taiwan
[MS722W/MS721W (S)/
MS721W (BL) for Taiwan Only]
TLABM0638AFZZ J AD Label,Specification
[MS722W for Taiwan Only]
TLABR1008AFZZ J AC Label,Bar Code
[MS721W (BL) for
Central•South America Only]
TLABR1009AFZZ J AC Label,Bar Code
[MS721W (S) for Central•South
America Only]
TLABR1010AFZZ J AC Label,Bar Code
[MS722W for Central•South
America Only]
TLABS0478AFZZ J AC Label,CAP
[MS722W/MS721W (S)/
MS721W (BL) forSingapore]
UBAGC0076AFSA J AH Carrying Case
UBATI0068AFSA J BG Rechargeable,Battery
UBNDT0083AFSA J AG Strap
– 5 –
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
(TEAC Test MD)
88GMMD-212 J BU Low Reflection Disc MMD-212
(TEAC Test MD)
Page 53
MD-MS722/C/W/MS721W
A
B
C
D
E
F
G
H
1
23456
Figure 6 MD MECHANISM EXPLODED VIEW
– 6 –
1
2
7
509
3
12
6
5
20
4
23
30
518x2
514
514
506
8
503
11
13
504
29
15
18
16
505
M903
M902
M901
28
503x2
502x3
32
511x2
508
508
8-4
(PH901)
8-1
8-2
(SW901)
8-3
(SW902)
9
25
515
27
516
517
Page 54
MD-MS722/C/W/MS721W
A
B
C
D
E
F
G
H
1
23456
Figure 7 CABINET EXPLODED VIEW
– 7 –
PWB–A
235
240
241
239
237
238
243
244
236
242
234
249
248
251x2
229
203
216
213
212
212
230
217
214
211
215
212
219
216
201-2
602
201-5
603
201-1
201
601
201-4
201-3
220
256
208
207
601
210
209
205
206
607
606x2
202-1
223x2
202
-2
202
225x2
222
234
225x2
606
601
604
228x2
604
204-4
204-1
204-2
204-3
606
606x2
606x2
602
605
204
218
218
266
265
261
231
232
233
246
252
221
MS722/C/W
MS721W(S)
/MS721W(BL)
253
249
254
239
238
241
237
248
264x3
202
260x2
202-1
202-2
259
255
246
262
263
MD MECHANISM
Except for
MS722
Page 55
MD-MS722/C/W/MS721W
PACKING OF THE SET (MD-MS722 ONLY)
UNIT HOLD OFF
Remote HOLD CANCEL
Control
SETTING POSITION OF SWITCHES AND KNOBS
– 8 –
Battery Case
MD-MS722
Connecting Cord,
RCA Type
AC Adaptor
Headphones
Remote Control
Packing Add.
SPAKA2704AFZZ
Packing Case
SPAKC6672AFZZ
Pad, AC Adaptor
SPAKZ0489AFZZ
Rechargeable, Battery
Strap
Connecting Cord, Optical Type
Operation Manual
Carrying Case
UBAGC0076AFSA
Quick Guide
Packing Add., Unit
SPAKZ0498AFZZ
Packing Add., Unit
SPAKZ0509AFZZ
Caution, Headphones
: Not Replacement Item
Paper Bag, Unit
SSAKP0116AFZZ
Page 56
MD-MS722/C/W/MS721W
COPYRIGHT 1998 BY SHARP COPORATION
ALL RIGHTS RESERVED.
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.
A9812-3516NS•HA•M
SHARP CORPORATION
Communication Systems Group
Quality & Reliability Control Center
Higashihiroshima, Hiroshima 739-0192, Japan
Printed in Japan
©
SC • SL • EX • SA • SZ
Loading...