Sharp MD-MS702MK User manual

Sharp
Brand
Sharp
Model
MD-MS702MK
Category
Minidisc players
Type
User manual
MD-MS702MK
– 1 –
MD-R2
This Serivce Manual is for the MD-MS702MK, which is a
minormodification model of the MD-MS702, This manual,
therefore, describes only the changed points from the
service manual. Pleasa refer to the MD-MS702, service
manual (No. S1806MDMS701W) together with this manual.
MD-MS702
Page
ADJUSTMENT ......................................................................... 12
WAVEFORMS OF MD CIRCUIT ............................................. 43
TROUBLESHOOTING ............................................................. 44
FUNCTION TABLE OF IC ....................................................... 47
Page
SPECIFICATIONS ................................................................................................................................................................. 2
BATTERY DISPOSAL(USA ONLY) ........................................................................................................................................ 2
NAMES OF PARTS ............................................................................................................................................................... 3
OPERATION MANUAL .......................................................................................................................................................... 4
QUICK GUIDE ........................................................................................................................................................................ 6
DISASSEMBLY...................................................................................................................................................................... 8
REMOVING AND REINSTALLING THE MAIN PARTS......................................................................................................... 9
EEPROM DATA LIST ........................................................................................................................................................... 10
DIGITAL EQ SETTING ......................................................................................................................................................... 11
BLOCK DIAGRAM ................................................................................................................................................................ 13
NOTES ON SCHEMATIC DIAGRAM ................................................................................................................................... 15
SCHEMATIC DIAGRAM ...................................................................................................................................................... 14
VOLTAGE ............................................................................................................................................................................. 17
WIRING SIDE OF P.W.BOARD............................................................................................................................................ 18
NOTES ON SCHEMATIC DIAGRAM ................................................................................................................................... 23
PARTS GUIDE/EXPLODED VIEW
PACKING METHOD (FOR USA ONLY)
• In the interests of user-safety the set should be restored to its original
condition and only parts identical to those specified should be used.
MD-MS702MK
SERVICE MANUAL
SHARP CORPORATION
No. S7860MDMS702M
This document has been published to be used
for after sales service only.
The contents are subject to change without notice.
CONTENTS
MD-MS702MK
– 2 –
FOR A COMPLETE DESCRIPTION OF THE OPERATION OF THIS UNIT, PLEASE REFER TO
THE OPERATION MANUAL.
General
Power source: DC 3.6 V (rechargeable lithium-ion
battery x 1)
DC 5 V (AC adaptor)
AC 120V, 60 Hz
DC 3V: Optionally available battery
case, AD-M70BC
(commercially available, "AA"
size, alkaline battery x 2)
DC 4.5V: Optionally available car adaptor,
AD-CA20X
(for cars with a 12-24V DC
negative earth electrical system)
Power consumption: 7 W (AC adaptor)
Output power: RMS; 20 mW (10 mW + 10mW)
(0.2% T.H.D.)
Charging time: Approx. 3.0 hours
(When using the AC adaptor included with
the unit)
Battery life:
The continuous recording time is for analog inputs when the
volume level is set to "VOL 0".
The continuous play time shows the value when the volume level
is set to "VOL 15".
The above values are the standard values when the unit is
charged and used at an ambient temperature of 68 oF(20oC).
The operating time when using alkaline batteries may be different,
depending on the type and manufacturer of the batteries, and on
the operating temperature.
Input sensitivity:
Output level:
Dimensions: Width: 3-7/16" (87.0 mm)
Height: 1-3/16" (29.4 mm)
Depth: 3-7/32" (81.5 mm)
Weight: 0.50 lbs.(227 g) with rechargeable battery
Input jack: Line/optical digital, microphone
(powered by the main unit)
Output jack: Headphones (impedance: 19 ohms)/
remote control unit
MiniDisc Recorder
Type: Portable MiniDisc recorder
Signal readout: Non-contact, 3-beam semi-conductor
laser pick-up
Audio channels: Stereo 2 channels/monaural (long-play
mode) 1 channel
Frequency response: 20 - 20,000 Hz (± 3 dB)
Rotation speed: Approx. 400 - 900 rpm
Error correction: ACIRC (Advanced Cross Interleave Reed-
Solomon Code)
Coding: ATRAC (Adaptive TRansformed
Acoustic Coding), 24-bit computed type
Recording method: Magnetic modulation overwrite method
Sampling frequency: 44.1 kHz (32 kHz and 48 kHz signals are
converted to 44.1 kHz, and then recorded.)
Wow and flutter: Unmeasurable
(less than ±0.001% W.peak)
SPECIFICATIONS
Specifications for this model are subject to change without
prior notice
Recording
Reference input
Input
level
level
impedance
MIC H 0.25 mV 10 k ohms
MIC L 2.5 mV 10 k ohms
LINE 100 mV 20 k ohms
Headphones — 10 mW + 32 ohms
10 mW
LINE 300mV — 50 kohms
(-12dB)
Maximum
output level
Specified
output Load
impedance
When using the
rechargeable battery (fully
charged) included with the
unit
When using two,
commerically available,
high capacity, "AA" size,
alkaline batteries (in the
optionally available
battery case)
When using two, commercially
available, high capacity, "AA"
size batteries with the
rechargeable battery (fully
charged)
Continuous recording:
Approx. 4.5 hours Continuous recording:
Approx. 4 hours Continuous recording:
Approx. 8.5 hours
Continuous play:
Approx. 6.5 hours Continuous play:
Approx. 8 hours Continuous play:
Approx. 14.5 hours
BATTERY DISPOSAL (USA ONLY)
Contains nickel cadmium (or sealed lead) battery.Must be
recycled or disposed of properly.Remove the battery from the
product and contact federal or state environmental agencies
for information on recycling and disposal options.
MD-MS702MK
– 3 –
Remote Control Unit
1. Synchro Recording Indicator
2. Character/Time Information Indicator
3. Record Indicator
4. Repeat Indicator:
5. Random Indicator
6. Disc Mode Indicator
7. Total Track Number Display
8. Track Number Indicator
9. Battery Indicator:
10. Headpones Socket
11. Hold Switch
12. Play Mode Button
13. Volume Buttons: +, -
14. Bass Button
15. Display Button
16. Play/Pause Button:
17. Stop/Power Off Button:
18. Fast Reverse/Fast Forward Buttons: /
Main Unit
1. Monaural Long-Play Mode Indicator
2. Record Indicator
3. Level Meter
4. Repeat Indicator:
5. TOC Indicator
6. Battery Indicator:
7. Random Indicator
8. Track Number Indicator
9. Character/Time Information Indicator
10. Synchro Recording Indicator
11. Disc Mode Indicator
12. Disc Name Indicator
13. Track Name Indicator
14. Remaining Recording Time Indicator
15. Total Track Number Display
16. Record/Track Mark Button
17. Volume/Name Select Buttons: +, -
18. Display/Lowercase Characters Button
19. Character Button
20. Stop/Power Off/Charge Button: /:OFF
21. Play/Pause Button:
22. Fast Reverse/Fast Forward/Recording Level Control/Cursor
Buttons: /
23. Enter/Fast Play/Synchro Button
24. Editer/Auto Mark/Time Mark Button
25. Eject Lever
26. Bass/Delete Button
27. Mode/Insert Button
28. Microphone Input Socket
29. Hold Switch
30. Rechargeable Lithium-Ion Battery Compartment
31. Optical/Line Input Soket
32. Headphones Soket
33. 5V DC Input Sokets
34. Battert Case Connection Terminals
NAMES OF PARTS
12345
6
7
8
9
10
11
12
13
14 15
16 17 18 19 20 21
22 23 24 25 26 27
29
34
30
33
28
31
32
RANDOM
TOTAL
1
REC
SYNC
12
13
14
11 15
16
17
18
10
1
6
23
4
5
789
MD-MS702MK
– 4 –
OPERATION MANUAL
■Rechargeable battery power
When the rechargeable battery is used for
the first time or when you want to use it
after a long period of non use, be sure to
charge it fully.
1Open the rechargeable battery com-
partment cover.
2Insert the rechargeable battery.
●Insert the side with the arrow first.
3Close the rechargeable battery com-
partment cover.
4Plug the AC adaptor into the AC outlet,
and then insert the plug on the AC
adaptor cord into the DC IN 5V jack.
5Press the ■/:OFF button twice to begin
charging.
●“ ” will appear, and the battery will
begin charging.
●Battery charging will be complete in 3.0
hours. When the charging is com-
plete, “ ” will go out.
AC 120V, 60 Hz
To an AC outlet
POWER SOURCE
Notes:
●After charging is complete, the AC
adaptor may be left connected. (For ex-
ample, when charging at night)
●The battery will not be charged when-
ever the power to the main unit is
turned on.
●If the AC adaptor is removed from the
main unit or from the AC outlet while
charging, “ ” will not disappear for
about 1 minute. This is normal.
●Do not force open the rechargeable
battery door too far.
●Do not attach the optionally available
battery case when charging the internal
battery.
This unit can be used with 4 different power sources: a rechargeable battery, an AC
adaptor, an optionally available battery case (AD-M70BC), and an optionally available
car adaptor (AD-CA20X).
1
2
5
4
:OFF
5V
DC IN
Mark
To the
DC IN 5V
jack
Insert
securely,
all the
way in.
■ Checking the remaining
amount of battery charge
The remaining amount of battery charge is
shown by the battery indicator ( ) dur-
ing operation.
< How to read the battery indicator >
●When the battery is completely dis-
charged, the whole battery indicator will
flash. Recharge the battery or replace
the alkaline batteries with new ones.
●When the battery has completely run
out, “BATT EMPTY” (main unit) and “Lo
BATT” (remote control unit) will appear.
The power will be disconnected auto-
matically.
Notes:
●When the AC adaptor included with this
unit or an optionally available car adap-
tor is used, the battery indicator will not
be shown.
●The number of bars shown in the bat-
tery indicator may increase or de-
crease, depending on the operation
being performed. This is normal.
●When the rechargeable battery and the
alkaline batteries are used at the same
time, the rechargeable battery is used
first, and then the alkaline batteries.
Since the battery indicator shows the
remaining amount of the particular bat-
tery being used, the number of bars will
increase when the unit switches to the
alkaline batteries.
CONVENIENT OPERATION FEATURES
Battery indicator
Charging is
needed.
When the battery is
completely charged
When the battery needs charging, it is
impossible to start recording or editing.
RECORDING USING AN OPTIONALLY AVAILABLE DIGITAL
CABLE
There are cases where digital
recording may be impossible.
In the following cases digital recording is
impossible, even if you are using digital
cables.
When you attempt to make a new digital
recording from a track that was digitally
recorded on a MiniDisc
●MiniDiscs are designed so that only
first generation digital copies can
made, further digital copies are pre-
vented by the SCMS (Serial Copy Man-
agement System). Recording
Playback
CD player, MD
player, etc.
Digitally recorded MiniDisc
Digital cable
Recording
Playback Digital cable
Analog recording is
possible.
MD-MS702MK
– 5 –
Moisture condensation
In the following cases, condensation
may form inside the unit.
Shortly after turning on a heater.
When the unit is placed in a room
where there is excessive steam or
moisture.
When the unit is moved from a cool
place to a warm place.
When the unit has condensation inside,
the disc signals cannot be read, and the
unit may not function properly.
If this happens, remove the disc.
The condensation should evaporate in
approximately 1 hour. The unit will then
function properly.
TROUBLESHOOTING
If trouble occurs
When this product is subjected to strong
external interference (mechanical shock,
excessive static electricity, abnormal sup-
ply voltage due to lightning, etc.) or if it is
operated incorrectly, it may malfunction. If
such a problem occurs, do the following:
1. Unplug the AC adaptor from the AC
outlet.
2. Remove the battery.
3. Leave the unit completely unpowered
for approximately 30 seconds.
4. Plug the AC adaptor back into the AC
outlet and retry the operation.
If strange sounds, smell or smoke come
out of the unit or an object is dropped into
the unit, remove the AC adaptor from the
AC outlet immediately and contact an au-
thorized Sharp service center.
Many potential “problems” can be resolved by the owner without calling a service tech-
nician. If something seems to be wrong with this product, check the following before
calling your authorized SHARP dealer or service center.
PROBLEM CAUSE
The unit does not turn
on.
Is the AC adaptor disconnected?
Is the battery exhausted?
Is the unit in the safety mode?
Has condensation formed inside the unit?
Is the unit being influenced by mechanical shock or by
static electricity?
No sound is heard
from the headphones.
Is the volume set too low?
Is the remote control unit or the headphones plugged
in?
Are you trying to play a MiniDisc with data on it
instead of a MiniDisc containing music?
When the operation
buttons are pressed,
the unit does not
respond.
Is the unit in the safety mode?
Is the battery exhausted?
Is the remote control unit plug or the headphone plug
inserted firmly?
Some sounds are
skipped. Is the battery exhausted?
Is the unit being subjected to excessive vibration?
The MiniDisc cannot
be ejected.
Has the track number or character information been
written on the disc yet?
Is the unit in the recording or editing mode?
Recording and editing
are impossible.
Is the MiniDisc protected against accidental erasure?
Is the unit connected properly to the other equipment?
Is the AC adaptor unplugged or did a power failure
occur while recording or editing?
Is the unit in the safety mode?
Even if the maximum recording
time of a MiniDisc has not been
reached, “DISC FULL” or “TOC
FULL” may be displayed.
When the number of tracks used
reaches the limit, regardless of the
remaining recording time, further
recording will be impossible.
(Maximum number of tracks: 254)
If a MiniDisc has been recorded or
edited repeatedly or if a MiniDisc has
scratches on it, it may not be possible
to record the maximum number of
tracks on it.
Even if the number of tracks and
the recording time have not
reached the limit, “DISC FULL” may
be displayed.
If there are scratches on a disc, the
unit will automatically avoid recording
in those areas. The recording time will
be reduced.
Even if several short tracks are
erased, the remaining recording
time may not show an increase.
When the remaining recording time of
a disc is displayed, short tracks less
than 8 seconds long may not be
included in the total.
Two tracks may not be combined in
editing. For MiniDiscs on which repeated
recording and editing operations were
performed, the COMBINE function
may not work.
The total of the recorded time and
time remaining on a disc may not
add up to the maximum possible
recording time.
A cluster (about 2 seconds) is
normally the minimum unit of
recording. So, even if a track is less
than 2 seconds long, it will use about
2 seconds of space on the disc.
Therefore, the time actually available
for recording may be less than the
remaining time displayed.
If there are scratches on discs, those
sections will be automatically avoided
(no recording will be placed in those
sections). Therefore, the recording
time will be reduced.
When recorded tracks are played
back using the cue and review
operations, some sounds may be
skipped.
For MiniDiscs on which repeated
recording and editing were performed,
some sounds may be skipped while
cueing and reviewing.
While recording, a track number may
be created in the middle of a track. If there are scratches or dust on a
MiniDisc, the track numbers following
that track will be increased by one.
MiniDiscs are recorded using a different system than is used for cassette tapes or DAT
recordings. Therefore, the following conditions may be encountered, depending on how
the disc has been recorded or edited. These are due to system limitations, and should
be considered normal.
MINIDISC SYSTEM LIMITATIONS
MD-MS702MK
– 6 –
PORTABLE MINIDISC RECORDER
MD-MS702
MK
Quick-Guide
Guía rápida
Rechargeable battery power
Alimentación de la batería recargable
Connection
Conexión
5
Press the ■/:OFF button twice to begin charging.
Pulse dos veces el botón
■
/:OFF para iniciar la
carga.
AC power
Alimentación de CA
1
2
3
4
Mark
Marca
To the DC IN
5V jack
Al enchufe
DC IN 5V
AC 120V, 60Hz
To an AC outlet
120V CA, 60Hz
A un tomacorriente
de CA
Analog recording
Grabación analógica
RL
Playback side
Lado de reproducción
(RIGHT)
(DERECHO)
(LEFT)
(IZQUIERDO)
To the line output jacks
on a stereo
A los enchufes de
salida de línea de un
equipo estéreo
Recording side
Lado de grabación
To the OPTICAL/LINE IN jack
Al enchufe OPTICAL/LINE IN
Connecting cable included with this unit
Cable de conexión incluido con este aparato
Digital recording
Grabación digital
DIGITAL OUT
OPTICAL OUT
Recording side
Lado de grabación
To the OPTI-
CAL/LINE IN jack
Al enchufe OPTI-
CAL/LINE IN
Optical digital
cable (AD-
M1DC, avail-
able separately)
Cable óptico
digital (AD-
M1DC, disponi-
ble por
separado)
Optical digital
cable (AD-
M2DC, available
separately)
Cable óptico digi-
tal (AD-M2DC,
disponible por
separado)
Playback side
Lado de reproducción
To the optical output
jack on a CD player
etc.
Al enchufe de salida
óptica de un
reproductor de dis-
cos compactos, etc.
To the optical output
jack on an MD player
etc.
Al enchufe de salida
óptica de un reproduc-
tor de minidiscos, etc.
AC 120V, 60Hz
To an AC outlet
120V CA, 60Hz
A un tomacorriente
de CA
To the DC IN 5V jack
Al enchufe DC IN 5V
Error messages Meaning Remedy
BATT EMPTY ●The battery has run down. ●Charge the rechargeable battery or
replace the alkaline batteries (or use
the AC adaptor for power).
BLANK DISC ●Nothing is recorded. ●Replace the disc with a recorded
disc.
Can't COPY ●No copy can be made because of
the SCMS copyright system. ●Record using the analog cable.
Can't EDIT ●A track cannot be edited. ●Change the stop position of the
track and then try editing it.
Can't REC ●Recording cannot be performed
correctly due to vibration or shock
in the unit.
●Re-record or replace it with another
recordable disc.
Can't WRITE ●Editing is impossible. ●Check the number of tracks.
DEFECT ●The disc is scratched. ●If the sound you hear is not correct,
try recording again.
●Replace the disc with another
recordable disc.
Din UNLOCK ●Poor connection of the digital cable. ●Connect the digital cable securely.
DISC ERROR ●The disc is damaged. ●Reload the disc or replace it.
DISC FULL ●The disc is out of recording space. ●Replace it with another recordable
disc.
HOLD ●The unit is in the safety mode. ●Return the HOLD switch to its
original position.
LOCKED
LOCK ERROR ●The EJECT lever was moved
during recording or editing. ●Turn off the power and remove the
MiniDisc.
NO DISC ●A disc has not been loaded. ●Load a disc.
PB DISC
PROTECTED ●The disc is write protected.
●You tried to record on a playback-
only disc.
●Move the write protection knob
back to its original position.
●Replace it with a recordable disc.
POWER ? ●Improper power is being supplied. ●Use one of the specified power
sources.
SORRY ●Since a track number is currently
being located or written to, the unit
cannot accept your command.
●Wait and then try the operation
again.
SYSTEM ERR ●The unit is malfunctioning and will
require service. ●For service, contact your local
Sharp authorized service center.
TEMP OVER ●The temperature is too high. ●Turn off the power, and wait for the
unit to cool.
TOC ERROR ●A large portion of the disc has been
damaged. ●Replace it with another recorded
disc.
TOC FULL ●There is no space left for recording
character information (track names,
disc names, etc.).
●Replace it with another recordable
disc.
Tr. Protect ●The track has been protected from
being erased. ●Edit the track with the device on
which it was recorded.
U TOC ERROR ●A large portion of the disc has been
damaged.
●There is an error in the recorded
signal.
●Replace it with another recorded
disc.
●Erase all of the signal errors, and
then try recording again.
? DISC ●A disc which contains data other
than music was played.
●There is an error in the signal from
the disc.
●A disc which contains non-music
data cannot be played.
●Replace it with another recorded
disc.
ERROR MESSAGES
MD-MS702MK
– 7 –
Playing a MiniDisc
Reproducción de un minidisco
Loading and playing a MiniDisc
Inserción y reproducción de un minidisco
●
The power will be turned on automatically, and play-
back will start from the first track. (Auto-play function)
●
La alimentación se conectará automáticamente, y la
reproducción empezará desde la primera pista.
(Función de reproducción automática)
●
After playback of the last track has finished, the unit
will stop automatically.
●
Después de terminar la reproducción de la última
pista, el aparato se detendrá automáticamente.
Playback does not start when a MiniDisc is inserted:
Press the button.
In the following cases, the auto-play function will not
work.
●
When the recordable MiniDisc write protection tab is
closed (page 9)
●
When the auto-play function has been canceled
(page 35)
La reproducción no empieza cuando se inserta un
minidisco:
Pulse el botón .
En los casos siguientes, la función de reproducción
automática no se activará.
●
Cuando esté cerrada la lengüeta de protección con-
tra escritura del minidisco grabable (página 9)
●
Cuando haya sido cancelada la función de
reproducción automática (página 35)
To interrupt playback:
Press the button during playback.
●To resume playback, press the button again.
To stop playback:
Press the ■/:OFF button.
To turn off the power:
Press the ■/:OFF button while in the stop mode.
●If the unit is not operated for at least 2 minutes
while in the stop mode, the power will be turned
off automatically.
To remove the MiniDisc:
Turn off the power and move the EJECT lever in the
direction indicated by the arrow.
Para interrumpir la reproducción:
Pulse el botón durante la reproducción.
●
Para reanudar la reproducción, pulse de nuevo el
botón .
Para detener la reproducción:
Pulse el botón
■
/:OFF.
Para desconectar la alimentación:
Pulse el botón
■
/:OFF estando en el modo de
parada.
●
Si el aparato no se utiliza durante un mínimo de
2 minutos estando en el modo de parada, la
alimentación se desconectará automáticamente.
Para extraer el minidisco:
Desconecte la alimentación y mueva la palanca
EJECT en el sentido indicado por la flecha.
Tone
Tono
Headphones
Auriculares
For the left (L)
Para la
izquierda (L)
For the right (R)
Para la
derecha (R)
To the
jack
Al enchufe
Remote control unit
Controlador remoto
23
1
Track number
Número de pista
Track name
Nombre de pista
(Nothing will be displayed for MiniDiscs that
do not contain track names.)
(No se visualizará nada para los minidiscos
que no tienen nombres de pistas.)
VOL /
NAME
Volume
Volumen
Volume (0 - 30)
Volumen (0 - 30)
BASS/DEL
BASS
BASS 1
BASS OFF
BASS 3
BASS 2
Bass sounds are emphasized slightly.
Bass sounds are emphasized more.
Bass sounds are emphasized even more.
Bass emphasis is canceled.
BASS 1
BASS OFF
BASS 3
BASS 2
Los sonidos graves se realzan ligeramente.
Los sonidos graves se realzan más.
Los sonidos graves se realzan aún más.
El realce de los graves se cancela.
Recording
Grabación
Recording from CDs or MDs (Synchro recording)
Grabación de discos compactos o minidiscos
(Grabación sincronizada)
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.
4
While playing sound from the external equipment con-
nected to this unit, press the or button to adjust
the recording level.
Mientras se reproduce el sonido del equipo externo
conectado a este aparato, pulse el botón o
para ajustar el nivel de grabación.
5
Press the ENTER/F.PLAY/SYNCHRO button.
Pulse el botón ENTER/F.PLAY/SYNCHRO.
6
Begin playback on the source equipment.
Inicie la reproducción en el equipo fuente.
1
Put the unit in the recording stand-by mode. (Perform
steps 1 - 4 in the “Synchro recording” section.)
Ponga el aparato en el modo de espera de grabación.
(Realice los pasos 1 - 4 de la sección "Grabación
sincronizada".)
2
Press the button.
Pulse el botón .
To stop recording:
Press the ■/:OFF button.
●If the unit is left alone after the recording has stopped,
the power will be turned off approximately 2 minutes
later.
After recording:
Press the ■/:OFF button while in the stop mode.
To remove the MiniDisc:
Turn off the power and move the EJECT lever in the direc-
tion indicated by the arrow.
Para detener la grabación:
Pulse el botón
■
/:OFF.
●
Si el aparato no se utiliza después de finalizar la
grabación, la alimentación se desconectará 2 minutos
después aproximadamente.
Después de la grabación:
Pulse el botón
■
/:OFF estando en el modo de parada.
Para extraer el minidisco:
Desconecte la alimentación y mueva la palanca EJECT en
el sentido indicado por la flecha.
Recording from a tuner or a CD (Manual recording)
Grabación de un sintonizador o disco compacto
(Grabación manual)
–4 dB
0 dB
Flashing
Parpadeo
■Important
●Do not wear your headphones when you are
crossing streets or near traffic.
●Do not use your headphones while driving a
motor vehicle, it may create a dangerous traffic
hazard and may be illegal. Remember to obey
all of the safety rules in your area.
●Do not play the unit at a high volume. Hearing
experts advise against extended play at high
volume levels.
●If you experience ringing in your ears, reduce
the volume or discontinue use.
■
Importante
●
No se ponga auriculares cuando atraviese ca-
lles ni cuando esté cerca del tráfico.
●
No emplee los auriculares mientras conduce un
vehículo, porque puede crear situaciones
peligrosas en el tráfico y puede ser ilegal.
Recuerde que debe respetar las reglas de
seguridad de su zona.
●
No reproduzca sonido en el aparato a altos
niveles de volumen. Los expertos dicen que es
perjudicial la reproducción continuada a altos
niveles de volumen.
●
Si nota timbres en los oídos, reduzca el volumen
o no utilice el aparato.
■Volume setting
Reduce the volume before starting to play.
MiniDiscs, compared to ordinary cassette tapes,
have very little noise. If the volume is adjust accord-
ing to your usual expectations of noise, you may
damage your hearing due to the high volume.
■
Ajuste del volumen
Reduzca el volumen antes de iniciar la
reproducción. Los mínidiscos, en comparación con
las cintas de casete nomales, tienen muy poco
ruido. Si se ajusta el volumen de acuerdo con el
ruido que puede esperarse normalmente, podría
dañarse los oídos debido al alto volumen.
MD-MS702MK
– 8 –
1 Bottom Cabinet 1. Open the battery Lid. 8-1
2. Screw .....................(A1) x6
2 Top Cabinet 1. Screw .....................(B1) x4 8-1
2. Flat Cable ...............(B2) x2 8-2
3 Main PWB 1. Screw .................... (C1) x2 8-2
2. Flat Cable ...............(C2) x3
4 Mechanism Unit 1. Lift the left side, and remove 8-3
in the arrow direction.
DISASSEMBLY
Caution on Disassembly
Follow the below-mentioned notes when disassembling
the unit and reassembling it, to keep it safe and ensure
excellent performance:
1. Take the battery and minidisc out of the unit.
2. When disassembling the machine, be sure to withdraw
the power plug from the socket in advance.
3. When disassemble the parts, remove the nylon band or
wire holder as necessary.
To assemble after repair, be sure to arrange the wires as
they were.
If a screw of different length is fitted to the MD mecha-
nism (the screw of the part to be fitted to the MD
mechanism chassis), it may contact the optical pickup,
resulting in malfunction.
4. When repairing, pay due attention to electrostatic charges
of IC.
REMOVAL PROCEDURE
STEP FIGURE
Bottom Cabinet
Top Cabinet
Center
Cabinet
Pull
(A1)x1
Ø1.4x2mm
(A1)x1
Ø1.4x2mm
(A1)x2
Ø1.4x2mm
(A1)x2
Ø1.4x2mm
(B1)x1
Ø1.4x2mm
(B1)x1
Ø1.4x2mm
(B1)x2
Ø1.4x2mm
Figure 8-1
Figure 8-2
Mechanism Unit
Figure 8-3
Note:
1. Handle carefully the main PWB and flexible PWB.
After removing the flexible PWB (*1) for optical pickup from
the connector, wrap the front end of flexible PWB in conduc-
tive aluminum foil so as to protect the optical pickup from
electrostatic damage.
2. When removing the mechanism from the cabinet or when
installing it, it is advisable to
rotate the unit lock plate to lower the holder section.
(C1)x1
Ø1.7x2.5mm
(C1)x1
Ø1.7x2.5mm
Pull
Pull
Pull Pull
Pull
Pull
Pull
Pull
(B2)x1
(B2)x1
(C2)x1
(C2)x1
(C2)x1
Main PWB
MD-MS702MK
– 9 –
REMOVING AND REINSTALLING THE MAIN PARTS
Remove the mechanism according to the disassembling meth-
ods 1 to 4. (See Page 8.)
How to remove the spindle motor (See Fig. 9-1.)
1. Remove the solder joint (A1) x 1 of flexible PWB.
2. Remove the screws (A2) x 3 pcs. and remove the spindle
motor.
Figure 9-5
Flexible PWB
solder joint
(A1) x1
Spindle Motor
(A2)x3
ø1.4x2.8mm
MD Mechanism
Figure 9-1
(B1)x2
Remove the solder joint
Stop Washer
(B2)x1
Drive Gear
(B3)x1
Lift Motor
(B4)x1
ø1.4x2.2mm
Lead wire
Figure 9-2
Figure 9-3
(E1)x1
ø1.7x2.5mm
Shaft
Pickup Unit
How to remove the optical pickup unit
(See Fig. 9-5.)
1. Remove the screw (E1) x 1 pc.
How to remove the magnetic head
(See Fig. 9-4.)
1. Remove the screws (D1) x 2 pcs.
2. Remove the soldering joint (D2) x2 pcs.
Note:
Mount carefully so as not to damage the magnetic head.
(D1)x2
Ø1.4x1.8mm
Pickup Unit
Magnetic Head
Solder
joint
(D2)x2
Figure 9-4
How to remove the lift motor (See Fig. 9-2.)
1. Remove the solder joint (B1) x 2 of lift motor lead wire.
2. Remove the stop washer (B2) x 1 pc., and remove the drive
gear (B3) x 1 pc.
3. Remove the screw (B4) x 1pc., and remove the lift motor.
Note:
Take care so that the motor gear is not damaged.
(If the gear is damaged, noise is raised in search mode.)
How to remove the sled motor (See Fig. 9-3.)
1. Remove the solder joint (C1) x 2 of sled motor lead wire.
2. Remove the screws (C2) x 2 pcs., and remove the sled
motor.
Note:
Take care so that the motor gear is not damaged.
(If the gear is damaged, noise is raised in search mode.)
(C2)x2
ø1.4x1.2mm
Sled Motor
Washer x2
(C1)x2
Mecha Flexible PWB
solder joint
MD-MS702MK
– 10 –
EEPROM DATA LIST
TEMP setting
Item display Set values
T M _ _ Calculate values
Sled setting Item display Set values
S L G _ 9 4 H
S L 2 _ 3 0 H
S L M _ 4 F H
S L V _ 3 6 H
S K k _ 4 3 H
S K t _ 4 0 H
S K m _ 4 3 H
DEQ. SET setting
Item display Set values
H Q 1 _ 9 0 H
H Q 2 _ 9 0 H
H S G _ 1 1 H
H S O _ F D H
L Q 1 _ 9 0 H
L Q 2 _ 9 0 H
L S G _ 1 1 H
L S O _ 0 0 H
G Q 1 _ 9 8 H
G Q 2 _ 8 4 H
G S G _ 1 1 H
G S O _ 0 0 H
G Q R _ 0 0 H
ADJ. SET setting
Item display Set values
C O K _ A 0 H
F A T _ C 0 H
T A T _ 3 E H
C A T _ 2 0 H
F A B _ 0 0 H
Control setting
Item display Set values
C T 0 _ 4 9 H
C T 1 _ C 8 H
P W L _ 0 0 H
R C 0 _ C 0 H
R C 1 _ F E H
S Y C _ A 6 H
D R 1 _ A 0 H
D R 2 _ A 6 H
I N 1 _ D 4 H
I N 2 _ 6 7 H
C T R _ 6 D H
C T 2 _ 9 4 H
C T 3 _ 3 3 H
C T 4 _ 6 4 H
C T 5 _ 7 4 H
C T 6 _ 0 8 H
C T 7 _ 4 2 H
S P M _ 0 0 H
M S L _ 0 0 H
R S L _ 0 0 H
BASS setting
Item display Set values
B S 1 _ 0 2 H
B S 2 _ A 4 H
B S 3 _ C 4 H
Item display Set values
F G _ _ 6 3 H
F F 1 _ 7 0 H
F F 2 _ F 0 H
F Z H _ E D H
F L n _ 0 9 H
D J G _ 1 4 H
F R V _ A A H
F P f _ 8 8 H
F L V _ 1 9 H
W T f _ 2 0 H
F S S _ 0 2 H
Fucus setting
Tracking setting
Item display Set values
T G _ _ 2 6 H
T F 1 _ 7 0 H
T F 2 _ E 0 H
T F S _ 0 0 H
T B o _ 2 B H
T B t _ 1 7 H
T K o _ 2 B H
T K t _ 1 9 H
T D o _ 6 7 H
T D t _ 2 A H
S C o _ 0 0 H
S C t _ 4 0 H
S C m _ 5 3 H
D B O _ 0 0 H
C L p _ 1 2 H
C L r _ 2 4 H
W T m _ E 0 H
Item display Set values
S P G _ 1 4 H
S P i _ A A H
S P m _ 7 9 H
S P o _ 4 F H
S P 1 _ 1 0 H
S P 2 _ 6 0 H
S P 3 _ F 2 H
S P 4 _ F 2 H
S P 5 _ 1 0 H
S P D _ 6 1 H
S P R _ C 4 H
Spindle setting
MD-MS702MK
– 11 –
: Digital EQ setting menu
: High-reflection pit section Digital EQ tap factor A, D
: setting
: High-reflection pit section Digital EQ tap factor B, C
: setting
: High-reflection pit section Autolevel slicer gain
: setting
: High-reflection pit section Autolevel slicer slice level offset
: setting
: Lows-reflection pit section Digital EQ tap factor A, D
: setting
: Low-reflection groove section digital EQ tap factor A, D
: setting
: Lows-reflection pit section Digital EQ tap factor B, C
: setting
: Low-reflection pit section Autolevel slicer gain
: setting
: Low-reflection pit section Autolevel slicer slice level offset
: setting
: Low-reflection groove section digital EQ tap factor B, C
: setting
: Low-reflection groove section Autolevel slicer gain
: setting
: Low-reflection groove section Autolevel slicer slice level offset
: setting
: Digital EQ-related other settings
: setting
PLAY
D E Q S E T
Digital EQ Setting
H Q 1
H Q 2
SKIP UP SKIP DOWN
H S G
SKIP UP SKIP DOWN
H S O
SKIP UP SKIP DOWN
L Q 1
SKIP UP SKIP DOWN
L Q 2
SKIP UP SKIP DOWN
L S G
SKIP UP SKIP DOWN
L S O
SKIP UP SKIP DOWN
G Q 1
SKIP UP SKIP DOWN
G S O
SKIP UP SKIP DOWN
D Q R
SKIP UP SKIP DOWN
G Q 2
SKIP UP SKIP DOWN
G S G
SKIP UP SKIP DOWN
* When the "STOP" button is pressed in specific menu, the TEST MODE STOP state is set.
* In specific state pressing the [DISP] key causes change to "focus setting menu".
* In the specific setting display state the setting change digit changes
when the [P-MODE] key is pressed.
1st digit (initial value) 2nd digit
P-MODE
P-MODE
* In the specific state the setting changes in the range of "0h to Fh"
when the [VOL UP/DOWN" key is pressed.
MD-MS702MK
– 12 –
: Control setting 2
: setting
: Special mode selection data (unprotect area)
: setting
: Monitor selection data (unprotect area)
: setting
: Control-related other setting data (unprotect area)
: setting
Continued from
the preceding page
C T 7
SKIP UP SKIP DOWN
S P M
SKIP UP SKIP DOWN
M S L
R S L
* When the "STOP" button is pressed in specific menu, the TEST MODE STOP state is set.
* In specific state pressing the [DISP] key causes change to "focus setting menu".
* In the specific setting display state the setting change digit changes
when the [P-MODE] key is pressed.
1st digit (initial value) 2nd digit
P-MODE
P-MODE
* In the specific state the setting changes in the range of "0h to Fh"
when the [VOL UP/DOWN" key is pressed.
* To monitor the EFM output (eye pattern) at TP139, change "MSL"
from 00 to 80. The value of "MSL" is set to 00 when shipped.
MD-MS702MK
– 13 –
Figure 13 BLOCK DIAGRAM
1~4,9~12
2,3,
15~17,
19~22
25~30
40
13,14,24,42
5,9,10,14,
23,27,28,32
35
24,26,
29,31
50
3,5~9,
11
26~29
32~37
39~46
57,66
10
LASER
HEAD
M902
SLED MOTOR
M901
SPINDLE
MOTOR
M903
LIFT MOTOR
MOTOR
DRIVE
3-PHASE
BRUSH LEESS
DRIVER
BA6965FV
VCC VS
HEAD
DRIVER
VS
VCC
RF SIGNAL
PROCESSOR
IR3R55
PICKUP COIL
DRIVER
VCC VM
4 Mbit
D-RAM
IX2567AF
ENDEC
ATRAC
LR376481
SYSTEM
MICROCOMPUTER
IX2680AF
EEPROM
S29L294A
DISPLAY UNIT
OPERATION UNIT
AD/DA
CONVERTER
POWER
DRIVE
2.5V
REGULATOR
+2.8V
-2.8V
IR3M09N
VCC
POWER DRIVE
IR3M09N
POWER SUPPLY
MICROCOMPUTER
IR3R54N
AUDIO AMP.
IR3R54N
AUDIO AMP.
+6~8
DC IN
RIPPLE
FILTER
DIGITAL INPUT
OPTICAL
INPUT UNIT
LINE INPUT
LINE OUT
MIC IN
HEAD PHONES
4.5V
REGULATOR
(ON/OFF)
REMOTE CONTROL
CONSTANT
CURRENT DRIVE
3V DC/DC
CONVERTER
S8327B30 BATTERY
VOLTAGE
REGULATOR
CONSTANT
CURRENT DRIVE
RECHARGEABLE
BATTERY
OPIC
POWER SELECT
CHARGE DRIVE
VCC
IC202
7
8
VCC VEE
VCC VEE
+2.8
F
IC901
+2.5
IC651
LB1638M
+2.5
7,9
+2.2
+2.5
+2.5
+2.5
+2.5
+2.5
74ACT02F
IC351
IC101
IC601
MPC17A39
IC201
IC401 +2.5
IC402
+2.8
IC501
AK4514VF
+2.5P
IC771
TK71225M
+2.8
IC841
IC821
+2.5
+2.5
IC875
TK71325M
IC701
+2.8V -2.8V
IC703
+2.8V -2.8V
J701
+4.5
J701
J702
Q721
IC702
TK71354M
J703
IC801,803,804
+1.8~5.5V
IC871
3~5V (1.8~3.4V)
IC800,805,Q801
(2.9~4.1V)
J801
DC JACK
(4~5.5V)
PICK
T
8
8
3
14
11,8
1,2,4,
5,10,13
13
6,8
17
1,6,
19,20
12,16
17~24
56
1~9
11~19
58,59
70~74
2,12,62,
68,78,87
82~84
86
89~100
16~19
37~39
48~55
91
90
78~80
9,23,
24,32,
81
22,23
28~30
40,43,58
45
47
1~4
8 3,6
42
5
7
8
4
1,5
18,19
17
20
5,6
5
3,6 3,6
3,6
3,6
5~9,11,16
19,20
7~12
15,17
18
22,23,24
10,12
20 17
5
~
+2.5
MD-MS702MK
– 14 –
A
B
C
D
E
F
G
H
123456
16 15 14 13 12 11 10
987654321
8765
4321
14
13
12
11
10
9
87
6
5
4
3
2
1
20
19
18
17
16
15
14
13
12
11 10
9
8
7
6
5
4
3
2
1
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11 27
26
28
29
30
31
32
33
34
35
36
10
9
8
7
6
5
4
3
2
1
5
43
2
1
10
9876
54321
123456789
26
27
28
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
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50
51525354555657585960616263646566676869707172737475
76
77
78
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79
80
81
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83
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85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25
100
50
49
48
98
99
100
1
2
3
4
5
6
7
8
9
10
11
12
242322212019181716151413
25
26
27
28
29
30
31
32
33
34
35
36
48 47 46 45 44 43 42 41 40 39 38 37
1
13141516171819202122232425
22232425
26
27
28
29
30
31
32
33
34
35
36
37
38
39
41
40
42
43
44
45
46
47
48
49
50
51 52 53 54
51 52 53 54
55 56 57 58 59 60 61 62 63
6
123456789
10 11 12 13 14 15 16 17 18 19 20 21 22
123456789
10 11 12 13 14 15 16 17 18 19 20 21 22
MAIN PWB-A1
116
SW902
DISC
PROTECT
HEAD
PH901
COM
W
U
V
–
+
–+
M
M
M
PWB
FLEXIBLE
PICKUP UNIT
FLEXIBLE
PWB
RF1
RF3
RF4
RF2
F–
T+
F+
T–
F
E
AGND
LDVAR
DGND
DGND
VCC
CVCC
COM
LDON
A
B
MP/R
VCC
OPIC
CIN
MCCK
EFMO
SPDRR
GND
VCC
GND
CSL2
CSL1
CST
COM
WIN
VIN
UIN
UOUT
RF
WOUT
VCC
FG
BRK–
BRK+
STBY
RIB
VOUT
VM
DISCIN
DISCPR
INNSW
PDCNT
SPDRF
SLDRF
SLDRR
DCNT1
VG
VC
LG
GND
VD3
FO3
RO1 PGND
RO3
VD3
VD4
PGND
RO4
RO2
RI4
FI4
FI3
RI3
VD4
FO4
RI2
FI2
FI1
RI1
VD2
FO2
PGND
VD2
VD1
PGND
FO1
VD1
OE
PS
CLK
AGND
NC
T+
T–
F–
F+
LDCNT1
LDCNT2
FODRF
FODRR
TRDRF
TRDRR
G
I2
VCC
I1
G
VS
O2
NC
O1
NC
PLVDRY
PLVDCI
RKEY
HKEY1
HKEY2
LDVAR
TEMP
SYWR
SYRD
SYRS
RKEY
HSTOP
SYD0
SYD1
SYD2
DSPSCK
DSPDAT
DSPSTB
BEEP
CLOCK
SYD3
SYD4
SYD5
SYD6
SYD7
RPLAY
LDON
OPICGA
RFLAT
VCC
GND
RACLK
LDON
HFON
SYD3
SYD4
SYD5
SYD6 VLIM
AVDD
AVREF0
PLVINN
DINT
SENSE
FOK
XRT
XRT
FOK
DINT
RESET
SENSE
XT1
XT2
VSS
HKEY1
HKEY2
TEMP
AVSS
LDVAR
MDOUT
AVREF1
SYD0
SYD1
SYD2
SYD7
SYWR
SYRD
SYRS
RKEY
BEEP
CNTRY
EJECT HDON
DSPSTB
DSPDAT
DSPSCK
RPLAY
HSTOP
KHOLD
F–
T+
F+
T–
EFMMON
ROUT
GOUT
TTR
EFMAGI
EFMAGC
AGND
AVCC
EFMI
EFMO
RF2-1
ADAG
ADAGC
ADIPI
ADIPO
ADLPFO
22KO
22KI
WBO
TCGO
AOUT
BOUT
EOUT
FOUT
DVCC
DATA
CLOCK
LATCH
DTEMP
DGND
AGND
SGAIN
DISC
STBY
AVCC
BIAS
FIN
EIN
BIN
AIN
TCGI
RFADD
REFO
REFI
RF4
RF3
RF2
RF1
BIAS
ADIP
AGC
EMF
AGC
DIFF
DIFF
SW
and
R
HPF
LPF
LOGIC
LDCNT1
RAA10
ACRCER
PLCK
SYRS
FEMON
DADATA
ADDATA
DFCK
BCLK
LRCK
DGND
VDD3
DOUT
DIN
X1O
X1I
VPD
VXI
ADPON
DAPON
OPTCNT
DCNT1
EMPH1
LDCNT2
X700KO
TOTMON
TEMON
SBCK
SBO
SBSY
SFSY
FOK
SENSE
COUT
MCCK
DINTX
RSTX
SYSD0
SYSD1
SYSD2
SYSD3
SYSD4
SYSD5
SYSD6
SYRDX
SYWRX
VBAT
WBI
TEST1
TEST0
FODRR
FODRF
TEST2
X176KO
X176KO
TRDRF
TRDRR
SLDRF
SLDRR
SPDRF
SPDRR
TCG
AGND
AIN
FIN
EIN
BIN
DGND
VDD1
VDD1
DGND
EFMI
AVCC
DGND
VDD1
RAD0
RAD1
RAWEX
RARASX
RAA9
DGND
VDD2
RAD3
RAD2
RACASX
RAOEX
RAA8
RAA7
RAA6
RAA5
RAA4
RAA0
RAA1
RAA2
RAA3
TCRS
EFMO
RMDAT
OPICGA
RFLAT
RACLK
RADAT
PLVDRY
PLVDCI
PLVINN
OPICGA
LDVAR
LDON
TEMP
RFLAT
RACLK
RADAT
XRT
RKEY
HKEY2
HKEY1 FODRF
FODRR
TRDRF
TRDRR
SLDRF
SLDRR
SPDRF
SPDRR
LDCNT1
LDCNT2
DCNT1
FOK
SENSE
CIN
MCCK
DINT
SYD0
SYD1
SYD2
SYD3
SYD4
SYD5
SYD6
SYD7
SYWR
SYRD
SYRS
97
SYSD7
CN101
100K
R442
R444
2.7K
C911
0.1
L651
0.47µH
C600
15/10
Q101
2SA17457
C104
0.027
C107
0.012 C131
330P(CH)
C109
1 C106
0.22
R101
22K
R102
22K
C2
1
C110
0.22
CK112
IC201
LR376481
ENDEC
R222
1M
R207
680
IC101
IR3R55
C111
0.0033
C102
1
R104
22K
R103
22K
C161
1 R154
1.2K
L100
10µH
C100
10/6.3
XL201
33.8688MHz
C211
5P(CH)
R203
100
C212
5P(CH)
C622
2.2
IC601
MPC17A39
C443
0.47 C441
10P(CH)
C442
680P
IC441
TC7W14FU
INVERTER
R443
39K
R441
12K
R408
100K
IC404
7SH00FU
R403
22K
R404 150K
IC40
1
IX2680
A
TP144
C103
1
C902
0.01
10K
R909 R908
100K
R907
180K
R903
150
R904
22K
R901
1
R902
1
IC901
BA6965FV
3-PHASE
BRUSH
DRIVER
C907
0.0022
C905
0.0022
C909
0.047
C906
0.0022
C908
0.47
C910
0.047
100K
R905
R906
270K
C903
3.3
R161
1.2K
C165
0.033
R205
560K
C205
0.1
R206
220K
C651
1
IC651
LB1638M
C357
0.1
IC351
74ACT02F
HEADR DRIVE
C354
0.1
C351
100P(CH)
D352
SB0209CP
D351
SB0209CP
0.039
C361
R361
8.2
C353
10/6.3
R423
22K
R425
22K
R424
22K
R105
390K
Q351
2SK2909
Q353
2SK2909
Q352
2SK2911
Q354
2SK2911
C123
390P
C124
390P
C121
270P(CH)
C122
270P
(CH)
R204
1K
C203
0.1
C207
0.1
SW401
EJECT
R406
100K
SW402
HOLD
R405
10K
R407
10K
R409
100K
L601
47µH
C601
1/6.3
L602
47µH
C602
1/6.3
L603
47µH
L604
47µH
C603
1/6.3
C604
1/6.3
L600
2.2µH
L608
47µH
R601
56K
TP601
L610
47µH
L609
47µH
C610
1
C609
1
R922
100K
R921
330
L204
R106
56K
C608
3.3
R426
100K
TP901
C112
0.033
C952
47/4
C951
47/4
C130
0.1
M902
SLED MOTOR
M901
SPINDLE
MOTOR
M903
LIFT MOTOR
SW901
DISC
IN
X176KO
PICKUP COIL DRIVER
SYSTEM MICRO
C
IC101 : RF SIGNAL
PROCESSOR
CK102
CK103
CK104
CK101
TP145
TP132
CK108
TP133
TP130
TP131
CK107
TP100
CK111
CK110
CK109
TP139
TP119
TP115
TP105
TP101
TP109
TP106
TP102
TP108
TP103
TP114
TP110
TP118
TP111
TP121
TP122
TP120
TP117
TP116
CN601
TP651
TP652
TP653
TP654
TP655
TP656
TP657
TP658
TP659
TP660
TP661
TP662
TP663
TP664
TP665
TP666
TP610
NAND GATE
MOTOR DRIVE
TP401
TP403
TP402
TP413
TP208
CK204
CK205
CK206
CK203
CK202
CK201
TP211
TP210
TP209
TP201
CK207
TP206
TP207
3
4
PLAYBACK SIGNAL
RECORD SIGNAL
Figure 14 SCHEMATIC DIAGRAM (1/3)
P14 P15 P16
NOTES ON SCHEMATIC DIAGRAM can be found on page 23.
MD-MS702MK
– 15 –
14
13
12
11
10
9
8
7
6
5
4
3
2
1
54
321
4
32
1
8765
4321
5
43
2
1
10
9876
54321
4
32
2
1
201918
17
161514
13
12 1110
987654
33
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
7
6
5
4
3
2
1
1
2
3
4
5
6
1
2
3
4
5
6
7
8
9
10 11
12
13
14
15
16
17
18
19
20
123456789
26
27
28
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
51525354555657585960616263646566676869707172737475
76
77
78
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25
100
50
49
48
98
99
100
1
2
3
4
5
6
1
2345
1
2345
6789
10111213141516171819202122232425
22232425
26
27
28
29
30
31
32
33
34
35
36
37
38
39
41
40
42
43
44
45
46
47
48
49
50
51 52 53 54
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
70 71 72 73 74 75
1
2
3
45
6
7
8
4M D-RAM
POW
E
I
C
IR
3
33
1
JACK PWB-A2
FL
FL
CLOCK
RKEY
RPLAY
VSS
NC
VDD
OUT
CIN
MCCK
G
I2
VCC
I1
G
VS
O2
NC
O1
NC
PLVDRY
PLVDCI
RKEY
HKEY1
HKEY2
LDVAR
TEMP
SYWR
SYRD
SYRS
RKEY
HSTOP
SYD0
SYD1
SYD2
DSPSCK
DSPDAT
DSPSTB
BEEP
CLOCK
SYD3
SYD4
SYD5
SYD6
SYD7
RPLAY
LDON
OPICGA
RFLAT
VCC
GND
RACLK
RADAT
PBLAT
RCLAT
PBOPON
MCPGIN
INPGIN
INPGCK
EMPH0
LDON
HFON
SYD3
SYD4
SYD5
SYD6 VLIM
AVDD
AVREF0
PLVINN
DINT
SENSE
FOK
XRT
XRT
FOK
DINT
RESET
SENSE
XT1
XT2
X1
VSS
X2
OEM
VDD
SLCNT3
SLCNT5
SLCNT1
SLCNT4
SLCNT6
SLCNT2
SWPUP
PCNT2
CKSTP
DISCIN
INNSW
DISCPR
PDCNT
VPP
PHOLD
PCNT1
CIN
ELON
PSLINN
PSLDCI
PSLDRY
TEST1
TEST0
SPIN
VDD
EPCS
INPGCK
RCPCNT
EEPK RTCCK
EEPD RTCDT
RTCWR
RTCCE
VSS
EMPH0
HPLAY
HREC
MCPGIN
INPGIN
INPGCK
OPTCNT
DIN
PBOPON
BEEP
PBLAT
RCLAT
RADAT
RACLK
ADPON
DAPON
DFCK
LRCK
BCLK
ADDATA
DADATA
EMPH1
EMPH0
RMDAT
DEM0
DEM1
RKEY
RPLAY
SCLK
STDO
MCLK
LRCK
STDI
PWAD
PWDA
PBAULT
BEEP
AUDATA
AUSCLK
RCAULT
PBMUTE
RESET
INPGIN
MCPGIN
DIN
OPTCNT
INPGCK
VCCMIC
VCC2.8X
VCC2.8
DGND
VD
SDTI
CMODE
DEM1
DEM0
AOUTL
AOUTR
VCOM VCMR
VCML
AINL
PWDA
PWAD
MCLK
LRCK
SCLK
SDTO
HKEY1
HKEY2
TEMP
AVSS
LDVAR
MDOUT
AVREF1
SYD0
SYD1
SYD2
SYD7
SYWR
SYRD
SYRS
RKEY
VCC
CS
SK
DI
DO GND
PRTCT
BEEP
CNTRY
PCNT1
EAOUT
GND
VREF
EAIN–
DB
EAIN+
EJECT HDON
DSPSTB
DSPDAT
DSPSCK
RPLAY
HSTOP
KHOLD
MCPGIN
INPGIN
EFMMON
LDCNT1
RAA10
ACRCER
PLCK
SYRS
FEMON
DADATA
ADDATA
DFCK
BCLK
LRCK
DGND
VDD3
DOUT
DIN
X1O
X1I
VPD
VXI
ADPON
DAPON
OPTCNT
DCNT1
EMPH1
LDCNT2
X700KO
TOTMON
TEMON
SBCK
SBO
SBSY
SFSY
FOK
SENSE
COUT
MCCK
DINTX
RSTX
SYSD0
SYSD1
SYSD2
SYSD3
SYSD4
SYSD5
SYSD6
SYRDX
SYWRX
VBAT
WBI
TEST1
TEST0
FODRR
FODRF
TEST2
X176KO
X176KO
TRDRF
TRDRR
SLDRF
SLDRR
SPDRF
SPDRR
TCG
AGND
AIN
FIN
EIN
BIN
DGND
VDD1
VDD1
DGND
EFMI
AVCC
DGND
VDD1
RAD0
RAD1
RAWEX
RARASX
RAA9
DGND
VDD2
RAD3
RAD2
RACASX
RAOEX
RAA8
RAA7
RAA6
RAA5
RAA4
RAA0
RAA1
RAA2
RAA3
TCRS
EFMO I/O1
I/O2
WE
RAS
A9
A0
A1
A2
A3
VCC A4
A5
A6
A7
A8
OE
CAS
I/O3
I/O4
GND
EAIN+
DB
EAIN–
VREF
GND
EAOUT
RMDAT
OPICGA
RFLAT
RACLK
RADAT
PBLAT
RCLAT
PBOPON
PLVDRY
PLVDCI
PLVINN
HPLAY
HREC
RCPCNT
PCNT1
RCPCNT
DSPDAT
DSPSCK
DSPSTB
PHOLD
PCNT1
PCNT2
HPLAY
HREC
RPLAY
PCNT2
PHOLD
PSLDCI
PSLINN
PSLDRY
PLVDCI
PLVINN
PLVDRY
PDCNT
DISCPR
INNSW
DISCIN
ADDATA
DFCK
BCLK
LRCK
DIN
ADPON
DAPON
EMPH1
OPTCNT
XRT
PSLDRY
PSLDCI
PSLINN
RKEY
HKEY2
HKEY1
EFMO
HSTOP
HPLAY
HREC
HKEY2
HKEY1
FODRF
FODRR
TRDRF
TRDRR
SLDRF
SLDRR
SPDRF
SPDRR
LDCNT1
LDCNT2
DCNT1
FOK
SENSE
CIN
MCCK
DINT
SYD0
SYD1
SYD2
SYD3
SYD4
SYD5
SYD6
SYD7
SYWR
SYRD
SYRS
DADATA
97
SYSD7
4.5 REGULATOR
(ON/OFF)
AD/DA
CONVERTER
L863
4.7µH
D861
RB491D
C863
1
C864
33/6.3
L171
10µH
100K
R442
R444
2.7K
L651
0.47µH
C600
15/10
C774
1
CN451
CN482
C868
1
C865
1
L862
47µH
C869
33/6.3
POWE
R
I
C
IR3
M
R846
10K
C845
47P
(CH)
R843
100K C842
22P(CH)
R848
220K
R847
330K
R852
1.5M
IC202
IX2567AF
C202
10/6.3
C201
1
IC201
LR376481
ENDEC
R222
1M
R207
680
L202
10µH
L100
10µH
L201
0.47µH
C100
10/6.3
R841
100K
C850
0.001
CN701
R849
33K
R823
100K R828
270K
C825
68P
(CH)
R829
33K
R827
300K
R826
10K
R821
100K
C830
0.001
R832
3.3M
C822
39P
(CH)
C847
10/10
L842
10µH
C846
1
C827
3.3
D821
F1J2F
C826
1
L822
10µH
C821
220/4
C810
0.33/10
R811
180K
R810
180K
C172
33/6.3
C171
33/6.3
XL201
33.8688MHz
C211
5P(CH)
R203
100
C212
5P(CH)
C443
0.47 C441
10P(CH)
C442
680P
IC441
TC7W14FU
INVERTER
R443
39K
R441
12K
R408
100K
IC404
7SH00FU
R403
22K
R404 150K
IC401
IX2680AF
C866
1
D862
RB521S30
IC702
TK71354M
C431
0.047
1SS361
D431
330K
R431
R482
18K
C481
0.1
R481
36K
R421
100K
R205
560K
C205
0.1
R206
220K
C651
1
IC651
LB1638M
R420
1K
R419
1K
R423
22K
R425
22K
R424
22K
R402
10K
R204
1K
C203
0.1
C207
0.1
R422
33K
R412
10K
R411
100K
IC402
S29L294A
E2-PROM
R415
1K
R413
1K
R414
1K
C401
0.1
SW401
EJECT
R406
100K
SW402
HOLD
R405
10K
R407
10K
R409
100K
C886
10/10
L886
0.47µH
I
N
D
S80821LN
IC431
Q401
2SA17457
R400
3.9K
3
3
C604
1/6.3
L600
2.2µH
R458
56K
R457
18K
R456
8.2K
R455
5.6K
R454
56K
R453
18K
R452
8.2K
R451
5.6K
L204
R861
100K
R426
100K
D831
1SS372
C831
0.1
C832
0.1
D201
1SS369
D841
F1J2F
C7
7
0.2
IC77
TK712
2
2.5V REGU
L772
4.7µH
C508
1
IC501
AK4514VF
R500
4.7
C507
10/6.3
R504
20K
SYSTEM MICROCOMPUTER
RESET
TP610
NAND GATE
MOTOR DRIVE
TP401
TP403
TP402
TP413
TP208
CK204
CK205
CK206
CK203
CK202
CK201
TP211
TP210
TP209
TP202
TP201
CK207
TP206
TP203
TP204
TP205
TP200
TP405
TP404
TP406
TP412
TP407
TP411
TP408
TP409
TP410
TP810
TP762
TP763
TP764
TP765
TP766
TP767
TP768
TP769
TP770
TP771
TP772
TP773
TP774
TP775
TP776
TP777
TP778
TP779
TP780
TP783
TP784
TP785
TP787
TP781
TP761 TP561
TP562
TP563
TP564
TP565
TP566
TP567
TP568
TP569
TP570
TP571
TP572
TP573
TP574
TP575
TP576
TP577
TP578
TP579
TP580
TP581
TP582
TP584
TP585
TP586
TP588
TP789
TP790
TP791
TP792
TP793
TP590
TP591
TP592
TP593
TP453
TP452
TP451
TP461
TP454
TP464
TP455
TP456
TP457
TP458
TP459
TP460
TP462
TP463
TP481
TP482
TP483
TP487
TP486
TP485
TP484
TP811
TP207
3
4
78 9 10 11 12
The numbers 1 to 18 are waveform numbers shown in page 43 (MD-MS702).
Figure 15 SCHEMATIC DIAGRAM (2/3)
P14 P15 P16
MD-MS702MK
– 16 –
Figure 16 SCHEMATIC DIAGRAM (3/3)
A
B
C
D
E
F
G
H
123456
14
13
12
11
10
9
8
7
6
5
4
3
2
1
8
7
6
54
3
2
1
54
321
1
2
3
4
1
2
3
4
5
6
7
8
54
321
242322
21
201918
17
161514
13
12 1110 987654321
33
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
7
6
5
4
3
2
1
1
2
3
4
5
67
8
9
10
11
12
1
2
3
4
5
67
8
9
01
1
1
2
1
1
2
3
45
6
7
8
1
2
34
5
1
2
3
45
6
7
8
1
2
34
5
1
2
34
5
6
1
1
2
2
33
4
4
5
1
2
34
5
6
1
2
3
1
2
34
5
6
1
2
34
5
6
1234
56
7
89
10
11
12
15
14
13 18
17
16 21 22 23 24
20
19
123456789
101112
151413 181716 2120 23 242219
1
2
3
4
5
7
8
9
AUDIO AMP.
CONSTANT
CURRENT DRIVE
POWER DRIVE
IC821
IR3M09N
33
1
MIC IN
LINE
JACK PWB-A2
1
7
1
14
FLEXIBLE
PWB
FLEXIBLE
PWB
KEY FLEXIBLE
PWB UNIT
LCD
DRIVER
GND
P-MODE
C-MODE
ENTER
DISPLY
VOL DOWN
VOL UP
BASS
EDIT
REC
SKIP DOWN
SKIP UP
STOP
PLAY LCD
CLOCK
RKEY
RPLAY
LI
RI
AGND
LIHP
LOUT
RIHP
ROUT
DGND
VEE
VCC
DIN
OPTCNT
INPGCK
INPGIN
MCPGIN
R-CH
R-CH
L-CH
L-CH
RESET
RCAULT
PBAULT
PBMUTE
BEEP
AUDATA
AUSCLK
MCPGIN
INPGIN
INPGCK
OPTCNT
DIN
PBOPON
BEEP
PBLAT
RCLAT
RADAT
RACLK
ADPON
DAPON
DFCK
LRCK
BCLK
ADDATA
DADATA
EMPH1
EMPH0
RMDAT
DEM0
DEM1
RKEY
RPLAY
SCLK
STDO
MCLK
LRCK
STDI
PWAD
PWDA
PBAULT
BEEP
AUDATA
AUSCLK
RCAULT
PBMUTE
RESET
INPGIN
MCPGIN
DIN
OPTCNT
INPGCK
VCCMIC
VCC2.8X
VCC2.8
DGND
VD
SDTI
CMODE
DEM1
DEM0
AOUTL
AOUTR
VCOM
AGND
VB
VA VRDA
VRAD
AINR
VCMR
VCML
AINL
PWDA
PWAD
MCLK
LRCK
SCLK
SDTO
ROUT
LOUT
VCC
DGND
RIHP
LIHP
AGND
RI LI
VEE
L-CH
R-CH
KEY
PLAY
DATA
NC
NC
NC
NC
PCNT1
EAOUT
GND OUT
VCC
PWM
STATE
ROSC
OSC
VREF
EAIN–
DB
EAIN+
OSCIN
OSCOUT
GND
VCC
OSCOUT
OSCIN
EAIN+
DB
EAIN–
VREF
OSC
ROSC
STATE
PWM
VCC
OUT
GND
EAOUT
VCC
GND
OUT
VSS
VDD
RCPCNT
PCNT1
P
CNT
DSPDAT
DSPSCK
DSPSTB
HPLAY
HREC
RPLAY
PCNT2
PHOLD
PSLDCI
PSLINN
PSLDRY
PLVDCI
PLVINN
PLVDRY
MICOM2.5V
HSTOP
HPLAY
HREC
HKEY2
HKEY1
NC
4.5 REGULATOR
(ON/OFF)
AD/DA
CONVERTER
D493
015Z5.1Y
L863
4.7µH
D861
RB491D
C863
1
C864
33/6.3
L171
10µH
D494
15AZ7.5Y
C774
1
CN451
CN482
C843
100P(CH)
C868
1
C865
1
L862
47µH
C869
33/6.3
POWER DRIVE
IC841
IR3M09N
L841
4.7µH
R844
15K
C848
1
R846
10K
C845
47P
(CH)
C844
100P(CH)
R843
100K C842
22P(CH)
R848
220K
R847
330K
R852
1.5M
R841
100K
C850
0.001
CN701
R849
33K
D822
RB521S30
R831
100K
C829
0.01
C823
100P(CH)
L821
4.7µH
R823
100K R828
270K
R824
15K
C825
68P
(CH)
R829
33K
C828
1
R827
300K
R826
10K
R821
100K
C830
0.001
R832
3.3M
C822
39P
(CH)
C824
100P(CH)
C847
10/10
L842
10µH
C846
1
C827
3.3
D821
F1J2F
C826
1
L822
10µH
C821
220/4
C810
0.33/10
R811
180K
R810
180K
C172
33/6.3
C171
33/6.3
C866
1
D862
RB521S30
IC702
TK71354M
R878
100K
R874
470K
C878
3.3
R873
1K
IC872
TC7W32FU
C-MOS LOGIC
C877
10/6.3 3V DC/DC
CONVERTER
C874
10/10
C872
1
Q871
NDS335N
C871
1
D873
1SS372
C873
1
C849
0.01
R851
100K
D842
RB521S30
D802
SB10015C
IC803 NDH831N
CONSTANT
CURRENT DRIVE
R482
18K
C481
0.1
R481
36K
C875
0.22
R877
100K
R876
100K
C880
0.01
C879
1
IC874
TC7S00FU
CHARGE DRIVER
R882
100K
R881
100K
R879
100K
R880
100K
R809
100K
D877
1SS360
C886
10/10
L886
0.47µH
IC804
RN4904
IC842
NDS335N
IC822
NDS335N
C881
1
D875
1SS378
IC875
TK71325M
R872
100K
Q872
DTC144 EE
Q873
2SJ305
IC873
S80827LN
Q401
2SA17457
R400
3.9K
R458
56K
R457
18K
R456
8.2K
R455
5.6K
R454
56K
R453
18K
R452
8.2K
R451
5.6K
R861
100K
D831
1SS372
C831
0.1
C832
0.1
D841
F1J2F
D871
RB491D
L871
47µH
R875
100K
IC876
RN4904
POWER SELECT
CHARGE DRIVE
R814
3.9K
R818
10K
R815
3.9K
C802
1
Q801
2SD1950
D801
015Z5.1Y
R816
1.2K
IC800
HN1C03FU
R801
680K
R819
270
C808
1
R808
39K
R807
27K
R806
680K
C807
0.1
R805
470K
C806
3.3
L801
1µH
C805
100/6.3
C804
1
IC801
HAT1025R
CONSTANT
CURRENT DRIVE
R804
100K
Q803
DTC144 EE
Q802
DTC144 EE
R803
100K
R802
390K
C803
0.1
IC805
UMD3N
CONSTANT
CURRENT DRIVE
D800
RB491D
L888
CORE
L887
CORE
R817
680
C759
0.056
C761
1
C762
1
C702
10/6.3
R756
27K
R701
100
C756
0.68
R762
3.3K
R761
3.3K
R754
330K
R757
27K
C757
0.68
IC703
IR3R54N
AUDIO AMP.
IC701
IR3R54N
C703
0.01
R703
150K
C758
3.3/10
C755
0.01
C753
1
C701
10/6.3
R702
100
L771
47µH
C771
33/6.3
C772
33/6.3
C773
0.2
IC771
TK71225M
2.5V REGULATOR
C775
0.01
L710
0.47µH
C710
0.1
C510
2.2
C509
2.2
R502
470
R501
470
C502
0.0022
C501
0.0022
C504
3.3/10
C503
3.3/10
L500
4.7µH
L772
4.7µH
C508
1
C500
10/6.3
IC501
AK4514VF
R500
4.7
C507
10/6.3
D492
015Z5.1Y
L491
4.7µH
C722
3.3/10
C721
3.3/10
C723
0.001
C735
0.001 C736
0.01
C451
0.001
C724
0.001
C731
0.22
R727
10K R723
6.8K
R724
6.8K
C725
3.3/10
C727
1
Q721
2SC4213B
R725
100
R726
39K
R728
1K
C726
3.3/10
R713
10K
Q711
RN1444A
R717
1K
C712
100P
(CH)
C714
1
R714
10K
C713
1
C711
100P
(CH)
C715
0.1
R715
100K
R716
100K
C734
0.1
C733
0.1
R720
8.2K
R719
8.2K
R712
5.6K
R711
5.6K
C754
1
R753
150K
L751
47µH
L752
47µH
C768
0.22
R752
82
C767
0.22
R751
82
R729
2.7K
R730
2.7K
TP721
C491
0.1
D491
015Z5.1Y
R504
20K
R503
20K
R767
1K
R768
1K R766
15
R765
15
C751
0.082
C752
0.082
R492
1K
L452
L454
L453
L457
L458
L456
J702
J703
HEADPHONES
J701
J801
DC IN
L702
L703
L713
L714
L704
L712
L711
X700K
POWER SUPPLY
MICROCOMPUTER
POWER SELECT
CHARGE DRIVE
2.7V RESET
IC871
S8327B30
TP810
TP762
TP763
TP764
TP765
TP766
TP767
TP768
TP769
TP770
TP771
TP772
TP773
TP774
TP775
TP776
TP777
TP778
TP779
TP780
TP783
TP784
TP785
TP787
TP781
TP761 TP561
TP562
TP563
TP564
TP565
TP566
TP567
TP568
TP569
TP570
TP571
TP572
TP573
TP574
TP575
TP576
TP577
TP578
TP579
TP580
TP581
TP582
TP584
TP585
TP586
TP588
TP789
TP790
TP791
TP792
TP793
TP590
TP591
TP592
TP593
TP453
TP452
TP451
TP461
TP454
TP464
TP455
TP456
TP457
TP458
TP459
TP460
TP462
TP463
TP481
TP482
TP483
TP487
TP486
TP485
TP484
TP729
TP712
TP713
TP711
TP714
TP703
TP705
TP708
TP701
TP709
TP704
TP702
TP707
TP722
TP723
TP724
TP725
TP726
TP 727
TP728
TP807
TP808
TP809
BATTERY
TERMINAL
EXT.BATTERY
TERMINAL
TP805
TP806
TP804
TP803
TP811
TP500
TP802
TP801
PLAYBACK SIGNAL
RECORD SIGNAL
NOTES ON SCHEMATIC DIAGRAM can be found on page 23.
P14 P15 P16
The numbers 5 to 8 are waveform numbers shown in page 43 (MD-MS702).
MD-MS702MK
– 17 –
0V
1.0V
2.1V
0V
5.0V
0V
0V
0V
5.0V
5.0V
0V
0V
0V
5.0V
0V
0V
0V
0V
0V
0V
0V
0V
5.0V
0V
0V
0V
5.0V
5.0V
0V
0V
0V
5.0V
0V
0V
2.5V
10.8V
2.5V
2.5V
0V
0V
0V
0V
1.0V
1.0V
1.0V
1.0V
1.0V
0V
0V
2.5V
0V
0V
0.95V
0V
0.35V
.035V
0V
0V
2.5V
2.5V
0.25V
0.25V
0V
2.23V
2.5V
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
2.52V
0V
0V
2.51V
1.26V
1.26V
1.26V
1.26V
1.26V
1.8V
1.26V
1.26V
1.26V
0V
1.26V
1.26V
0V
1.26V
1.26V
1.26V
1.26V
2.52V
0V
0V
1.0V
1.0V
1.0V
1.0V
1.5V
1.7V
2.5V
1.9V
0.9V
1.4V
0.6V
0.6V
0.6V
2.53V
0.6V
1.0V
1.0V
1.0V
1.0V
1.8V
2.0V
1.6V
1.7V
0V
1.0V
2.5V
1.27V
0V
1.27V
1.27V
1.27V
1.27V
1.26V
2.2V
1.43V
2.15V
0V
0V
0V
0V
1.0V
0V
0V
0V
0V
0V
0V
0V
0V
0.6V
0.6V
0.6V
1.4V
0.9V
2.5V
2.5V
0.8V
0.9V
0.9V
1.0V
1.8V
0V
2.0V
1.3V
1.5V
1.1V
1.7V
2.5V
1.6V
1.6V
0V
2.0V
1.0V
0.9V
0V
0V
0V
0V
0V
2.15V
0V
0V
0V
0V
0.8V
2.15V
0V
1.0V
1.0V
2.3V
2.15V
2.15V
0V
1.0V
1.0V
0V
0V
0V
0V
0V
0V
2.15V
0V
2.15V
1.0V
2.15V
0V
0V
1.0V
2.15V
2.15V
0V
2.5V
0.5V
0.6V
0.5V
1.0V
1.2V
0.9V
1.2V
0.4V
2.45V
2.5V
0V
9
8
7
6
5
4
3
2
1
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31
PIN
NO. VOLTAGE
IC101
9
8
7
6
5
4
3
2
1
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
40
39
38
37
36
35
34
33
32
31
50
49
48
47
46
45
44
43
42
41
PIN
NO. VOLTAGE
IC201
PIN
NO. VOLTAGE
51
64
63
62
61
60
59
58
57
56
55
54
53
52
68
67
66
65
69
80
79
78
77
76
75
74
73
72
71
70
90
89
88
87
86
85
84
83
82
81
100
99
98
97
96
95
94
93
92
91
2.5V
0V
0V
0V
0V
0V
0V
2.5V
2.5V
1.18V
0V
0V
1.18V
1.18V
2.42V
2.1V
0V
2.1V
2.5V
0V
2.5V
0V
0V
0V
2.9V
1.8V
0V
2.5V
2.5V
2.5V
1.48V
2.5V
0V
0V
0V
2.5V
2.46V
2.5V
0V
2.5V
0.27V
1.5V
2.47V
2.5V
2.2V
2.43V
0.7V
0.8V
0.8V
0.8V
0.95V
1.1V
0.95V
1.1V
0.8V
0V
2.47V
2.96V
0V
0V
0V
2.5V
0V
0V
2.5V
0V
2.5V
2.35V
2.75V
2.75V
0V
0V
0V
3.12V
3.12V
0V
0V
0.4V
0V
2.5V
2.5V
2.5V
0V
2.5V
2.5V
2.5V
2.5V
0V
0V
2.0V
0V
2.5V
2.5V
0V
0V
1.2V
0V
0.45V
2.5V
0.3V
9
8
7
6
5
4
3
2
1
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
40
39
38
37
36
35
34
33
32
31
50
49
48
47
46
45
44
43
42
41
PIN
NO. VOLTAGE
IC401
PIN
NO. VOLTAGE
51
64
63
62
61
60
59
58
57
56
55
54
53
52
68
67
66
65
69
80
79
78
77
76
75
74
73
72
71
70
90
89
88
87
86
85
84
83
82
81
100
99
98
97
96
95
94
93
92
91
9
8
7
6
5
4
3
2
1
20
19
18
17
16
15
14
13
12
11
10
PIN
NO. VOLTAGE
IC202
5
4
3
2
1
PIN
NO. VOLTAGE
IC404
2.5V
2.5V
0V
0V
4
3
2
1
PIN
NO. VOLTAGE
IC431
1.0V
1.2V
1.1V
0V
1.1V
1.2V
1.3V
2.5V
5
4
3
8
7
6
2
1
PIN
NO. VOLTAGE
IC441
2.5V
0V
1.2V
1.2V
0V
2.5V
0V
2.5V
5
4
3
2
1
PIN
NO. VOLTAGE
IC402
8
7
6
5.0V
0V
5.0V
0V
5.0V
5.0V
5.0V
5.0V
5
4
3
2
1
PIN
NO. VOLTAGE
IC801
8
7
6
5.0V
5.0V
5.0V
0V
0V
5.0V
5.0V
0V
5
4
3
2
1
PIN
NO. VOLTAGE
IC803
8
7
6
1.4V
0V
0V
2.5V
2.8V
5
4
3
2
1
PIN
NO. VOLTAGE
IC771
0V
0V
0V
4.5V
7.7V
5
4
3
2
1
PIN
NO. VOLTAGE
IC702
1.25V
0.9V
1.25V
1.23V
1.1V
0V
0.8V
4.8V
0V
0.4V
1.0V
1.0V
5
4
3
2
1
PIN
NO. VOLTAGE
IC821
6
11
10
9
8
7
12
5.0V
4.8V
0V
0V
0V
5
4
3
2
1
PIN
NO. VOLTAGE
IC871
4.8V
4.8V
0V
0V
4
3
2
1
PIN
NO. VOLTAGE
IC873
3.5V
2.97V
0V
0V
4.9V
4
5
3
2
1
PIN
NO. VOLTAGE
IC874
5.0V
0V
5.0V
0V
5.0V
5.0V
5. 0V
5.0V
5
4
3
2
8
7
6
1
PIN
NO. VOLTAGE
IC872
1.25V
0.9V
1.33V
1.22V
1.22V
0V
0V
4.8V
0V
0.4V
1.0V
1.0V
5
4
3
2
1
PIN
NO. VOLTAGE
IC841
6
10
9
8
7
11
12
9
8
7
6
5
4
3
2
1
16
15
14
13
12
11
10
PIN
NO. VOLTAGE
IC501
9
8
7
6
5
4
3
2
1
24
23
22
21
20
19
18
17
16
32
31
30
29
28
27
36
35
34
33
26
25
15
14
13
12
11
10
PIN
NO. VOLTAGE
IC601
0V
0V
0V
0V
0V
0V
0V
0V
0V
0V
0V
0V
0V
0V
0V
0V
–2.85V
0V
0V
2.75V
0.8V
0V
0V
0V
9
8
7
6
5
4
3
2
1
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
PIN
NO. VOLTAGE
IC701
1.3V
0V
0V
0V
0V
0V
0V
0.95V
0V
1.9V
0V
1.95V
2.5V
0V
0V
0V
–2.85V
0V
0V
2.78V
0.83V
0V
0V
0V
9
8
7
6
5
4
3
2
1
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
PIN
NO. VOLTAGE
IC703
0V
0V
0V
0V
0V
0V
2.4V
2.45V
1.87V
0V
2.5V
2.1V
0V
2.1V
0V
2.5V
2.5V
0V
0V
0V
9
8
7
6
5
4
3
2
1
20
19
18
17
16
15
14
13
12
11
10
PIN
NO. VOLTAGE
IC901
0V
0V
0V
2.5V
4.8V
5
4
3
2
1
PIN
NO. VOLTAGE
IC875
5.0V
0V
0V
0V
2.5V
5.0V
5
6
4
3
2
1
PIN
NO. VOLTAGE
IC876
22
21
24
23
20
19
18
17
7.7V
7.6V
7.6V
0V
0V
0V
5
4
3
2
1
PIN
NO. VOLTAGE
IC804
6
0V
0V
2.5V
0V
0V
0V
1.2V
2.5V
1.2V
0V
9
8
7
6
5
4
3
2
1
10
PIN
NO. VOLTAGE
IC651
0V
0V
2.5V
0V
0V
2.5V
0V
1.0V
2.5V
0V
1.0V
2.5V
0V
4.5V
9
8
7
6
5
4
3
2
1
14
13
12
11
10
PIN
NO. VOLTAGE
IC351
5.14V
5.14V
5.09V
0V
5.09V
5.15V
5.16V
10.33V
5
4
3
2
1
PIN
NO. VOLTAGE
KIC1
8
7
6
5.16V
5.16V
5.16V
0V
5.16V
5.16V
5.16V
10.34V
5
4
3
2
1
PIN
NO. VOLTAGE
KIC2
8
7
6
VOLTAGE
MD-MS702MK
– 18 –
A
B
C
D
E
F
G
H
123456
BATTERY
TERMINAL(+)
C866
L886
R861
1
3
4
5
IC702
D862
R408
R407
C886
R852
R847
C845 C849
R851
C848
D842
C842
R841
R848
R846
C810 R828 R849
C850
R843
C828
R413
R414
R412
R415
R411
C443
R442
IC441
R443 C442
R444
R204
C203
C441
R441
C207 1
80
85
90
95
100 26
30
35
40
45
510 15 20
25
D201
IC404
Q401
R400
L171
C172
C171
Q101
L601
L602
C602
C601
C202
L202
1
5
50
51
55606570
75
76
6
10 11
15
16
20
C130
R601
C608
L608
L610
C357
XL201
C212
C211
R222
L609
R207
L204
R431
C431
C401
R203
D431
1
1
1
1
3
4
5
2
3
4
4
4
5
5
6
8
C843
IC431
C844
R844
L651
C651
R805
D822
R831
C829
C823
R824
C824
R806
C807
R811
C822
R823
R829
R821
R826
C830
C825
R832
R827
R810
R814
R818
D801
R815
IC800
R801
R802
C803
D802
C808
R808
R807
Q803
Q802
IC804
R809
1
1
1
6
1
6
7
12
7
12
1
34
6
4
45
1
34
6
5
8
8
R804
R803
C874 C804
C821
C805
L801
C806 Q352
D351
C351
Q351 Q353
Q354
C354
D352
C353
C609
C610
L600
1
5
10
15
18 19
20
25
30
35 36
C600
L603
L604
C622
C604
C603
D800
R817
DC IN
J801
C161
R154
IC201
IC202
IC651
IC402
IC841
IC801
IC351
IC821
IC803
IC601
3
4
1
12
13
11
10
MAIN PWB-A1(TOP)
BATTERY
TERMINAL(-)
1
7
14
8
Figure 18 WIRING OF P.W.BOARD (1/5)
The numbers 1 to 18 are waveform numbers shown in page 43 (MD-MS702).
MD-MS702MK
– 19 –
78 9 10 11 12
Figure 19 WIRING OF P.W.BOARD (2/5)
CN101
IC401
CN701
1
1
10 20 30 33
33
IC101
R105
C104
1
1
22
22
C103 C102
R106
C131
R104
R103
R102
R101
L201
C201
C165
R161
C205
R206
R205
C124
C121
C122
C123
D821
C952
SW402
HOLD
C868
C864
C846
L842
L841
C847
R482
R481
C481
D841
C877
C863
C865
C869
C951
C827 L862 L863
IC873
IC875
R872
IC822
Q873
C873
D873
Q872
C875
IC842
D861
L822
C826
L821
R421
R419
R422
R420
C831
R878
C832
D831
1
1
16
16
R402 1
100
5101520
25
26
30
35
40
45
55 60 65 70
50
51 75
76
80
85
90
95
R909
C911
IC901
R426
CN451
R403
SW401
EJECT
C112
1
5
10
12
13
15 20
24
25
30
35 36
37
48
4045
C111
C110
C109
C100
R455
R409
C106
C107
R406
R405
L100
R451
1
1
14
14
R452
R456
R458
R457
R454
R453
C902
R423
R424
R404
R425
C910
C909
C908
C905
C906
C907
R901R902
R905
C903
R906
C913
R907
C912
R903
R904
R908
1
5
10 11
15
20 R361
C361
R922
CN601
R921
L871 C872
8
5
4
1
Q871
IC871
C871 D871
C880
IC872
R877
R876
D877
R881
R873
IC876
C878
R875
R879
IC874
C881
C879
D875
R880 R882
R819
IC805
17
R874
Q801 1
1
3
3
1
1
3
3
6
4
6
5
4
4
4
L888
L887
C802
TP114 TP116
TP101
TP110
TP103
TP115
TP102 TP105 TP111
TP120
TP201
TP206
TP122
TP108
TP109
TP121
TP106
TP117 TP119
TP409
TP411
TP410
TP403
TP211
TP761
TP763
TP762 TP767 TP770 TP772 TP775
TP764 TP769 TP774 TP779
TP408
TP780
TP777 TP785
TP765
TP773 TP776
TP778
TP781 TP793
TP771
TP768
TP766
TP784 TP790
TP787
TP791
TP792
TP783
TP789
TP412
TP405
TP208
TP209
TP404
TP210 TP407
TP401
TP139
TP203
TP118
TP144
TP100 TP145
TP454
TP453
TP811
TP402
TP461
TP463
TP458
TP451 TP406
TP456
TP462
TP610
TP460
TP457
TP207 TP657
TP661
TP658
TP660
TP601
TP656 TP655
TP654
TP652
TP651
TP413
TP205
TP664
TP663
TP901
TP653
TP807
TP810
TP659
TP481
TP482
TP487
TP486
TP808
TP809
TP803 TP806
TP805
TP484
TP485
TP665
TP666
TP662
TP804
TP464
TP455
TP459
TP452
TP801
TP802
R816
TP483
P22 4-H
FROM LCD
FLEXIBLE PWB
71
EXT. BATTERY TERMINAL
(220)
MAIN PWB-A1(BOTTOM)
P22 4-F
FROM KEY
FLEXIBLE PWB(231)
P22 6-C
FROM MECHANISM
FLEXIBLE PWB(8)
FROM PICKUP
FLEXIBLE PWB
P22 1-D
FROM AUDIO FLEXIBLE PWB(254)
P21 9-F
2
9
14
15
17
18
16
CN482
6
14
23
1
3
5
4
MD-MS702MK
– 20 –
A
B
C
D
E
F
G
H
123456
Figure 20 WIRING OF P.W.BOARD (3/5)
R504
C504
R761
C500
C753
C754
C510
C503
R503 C501
C715
C502
R714 C508
L702
Q711
C752
L454
L751
L752
R768
R765
L453
R767
R757
R724
L703
L704
R701
L714
C703
R703
C726
C725
R730
C721
C722
C736
R728
C731
R727 1
34
5
C710
C775
C733
C734
L710
R729
C773
C774
L771
C771
C772
R711
1
1213
15
20
24
5
10 R712
R719
R720
C505 C506
C701
L500
C759
C760
C758
R756
C507
C509
R501
R717
C702
R702
R715
R716
R713
R754
R500
C713 R502
C491
L491 C714
C711
C767 R753
D494
R751
C755
R492 D492
C768
L457
D491
L458
D493
C751
R766
R762
C761
C762
1
1
510
5
10
12
12
13
13
15
15
20
20
24
24
C756
C757
R752
J703
HEADPHONES
J701
LINE
J702
MIC IN
IC701
IC703
IC501
IC771
7
8
6
5
JACK PWB-A2(TOP)
The numbers 5 to 8 are waveform numbers shown in page 43 (MD-MS702).
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Sharp MD-MS702MK User manual

Sharp
Brand
Sharp
Model
MD-MS702MK
Category
Minidisc players
Type
User manual
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