MD-MT80W/90W/90/90C
SERVICE MANUAL
No. S4123MDMT80W/
PORTABLE MINIDISC RECORDER
MD-MT80W(S)
Illustration: MD-MT80W
MD-MT90W(S)
MD-MT90(S)
MODEL MD-MT90C(S)
• In the interests of user-safety the set should be restored to its
Illustration: MD-MT90W/90/90C
CONTENTS
SAFETY PRECAUTION FOR SERVICE MANUAL (MD-MT80W/90W ONLY) ..................................................................... 2
AC ADAPTOR AND PLUG (MD-MT80W/90W ONLY) .......................................................................................................... 3
SPECIFICATIONS ................................................................................................................................................................. 4
ACCESSORIES ..................................................................................................................................................................... 6
NAMES OF PARTS ............................................................................................................................................................... 7
OPERATION MANUAL .......................................................................................................................................................... 8
QUICK GUIDE (MD-MT90 ONLY) ....................................................................................................................................... 12
DISASSEMBLY.................................................................................................................................................................... 14
REMOVING AND REINSTALLING THE MAIN PARTS....................................................................................................... 15
ADJUSTMENT ...................................................................................................................................................................... 16
MD ERROR MESSAGE DISPLAY CONTENT LIST ........................................................................................................... 29
NOTES ON SCHEMATIC DIAGRAM .................................................................................................................................. 30
TYPES OF TRANSISTOR AND DIODE .............................................................................................................................. 30
BLOCK DIAGRAM ............................................................................................................................................................... 31
SCHEMATIC DIAGRAM ...................................................................................................................................................... 32
WIRING SIDE OF P.W.BOARD........................................................................................................................................... 34
WAVEFORMS OF MD CIRCUIT ......................................................................................................................................... 37
VOLTAGE ............................................................................................................................................................................ 38
TROUBLESHOOTING ......................................................................................................................................................... 39
FUNCTION TABLE OF IC.................................................................................................................................................... 42
PARTS GUIDE/EXPLODED VIEW
PACKING OF THE SET (FOR U.S.A. ONLY)
original condition and only parts identical to those specified be
used.
Page
SHARP CORPORATION
This document has been published to be used
for after sales service only.
The contents are subject to change without notice.
MD-MT80W/90W/90/90C
SAFETY PRECAUTION FOR SERVICE MANUAL
(MD-MT80W/90W ONLY)
Precaution to be taken when replacing and servicing the
Laser Pickup.
THE AEL (ACCESSIBLE EMISSION LEVEL) OF THE LASER
POWER OUTPUT IS LESS THAN CLASS 1 BUT THE LASER
COMPONENT IS CAPABLE OF EMITTING RADIATION
EXCEEDING THE LIMIT FOR CLASS 1. THEREFORE IT IS
IMPORTANT THAT THE FOLLOWING PRECAUTIONS ARE
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.
English:
This product is classified as a CLASS 1 LASER PRODUCT.
German:
Dieses Produkt ist ein Laserprodukt der Klasse 1.
French:
Ce Produit est Classifié comme étant un PRODUCTO
LASER DE CLASSE 1.
Laser Diode Properties
●Material: GaAlAs
●Wavelength: 785 nm
●Pulse time:
Read mode: 0.8 mW Continuous
Write mode: max 10 mW 0.5S
min cycle 1.5S
Repetition
Precaution to be taken when replacing and servicing the laser pickup.
The following precautions must be observed during servicing to protect your eyes against exposure to the laser.
Warning of possible eye damage when repairing:
If the AC adaptor or batteries are connected when the top housing (disc cover) of the unit is removed, and the PLAY key is
pressed, the laser will light up during focus access (2-3 seconds). (Fig. 2-1) During the operation, the laser will leak from the
opening between the magnetic head and the mechanical chassis (Fig. 2-2). In order to protect your eyes, you must not look
at the laser during repair. Before repairing be sure to disconnect the AC adaptor and remove the batteries.
Magnet head
Optical pickup
Figure 2-1 Figure 2-2
Top Cabinet
– 2 –
Mechanism
Chassis
Spindle motor
Magnet Head
Laser Beam
Main PWB
Optical Pick-Up
AC ADAPTOR AND PLUG
PADPA6049AWZZ PADPA5052AWZZ PADPA5051AWZZ PADPA5050AWZZ
QPLGA0004AWZZ
(MD-MT80W/90W ONLY)
MD-MT80W/90W/90/90C
– 3 –
MD-MT80W/90W/90/90C
FOR A COMPLETE DESCRIPTION OF THE OPERATION OF THIS UNIT, PLEASE REFER TO
THE OPERATION MANUAL.
MD-MT80W/90W
SPECIFICATIONS
■ General
Power source:
DC 5V: AC adaptor (AC 110-240V, 50/60 Hz)
DC 1.5V: Commercially available, "AA" size
(LR6), alkaline battery x 1
DC 1.2V: Optional rechargeable Nickel-Metal
Hydride battery (AD-N70BT) x 1
DC 4.5V: Optional car adaptor, AD-CA20X(for
cars with a 12 - 24V DC negative earth
electrical system)
Power consumption:
Output power:
Charging
time:
Input sensitivity:
Recording
level
MIC H 0.25 mV 10 k ohms
MIC L 2.5 mV 10 k ohms
LINE 100 mV 20 k ohms
Output level:
Headphones
LINE 250 mV (-12
Dimensions:
Weight:
Input socket:
Output socket:
0.15 A (AC adaptor)
RMS; 20 mW (10 mW + 10 mW)
(0.2% T.H.D.)
Approx. 3.5 hours (90 %)
Approx. 5.5 hours (fully charged)
(When using the AC adaptor included
with the unit)
Reference input
level
Specified
output
- 10 mW + 10 mW16 ohms
dB)
Width: 81.1 mm (3-7/32")
Height: 19.9 mm (13/16")
Depth: 92.4 mm (3-21/32")
147 g (0.32 lbs.) without battery
(MD-MT80W)
172 g (0.38 lbs.) with rechargeable battery
(MD-MT90W)
Line/optical digital, microphone (pow-
ered by the main unit)
Headphones (impedance: 16 ohms)
Maximum
output level
Input impedance
Load impedance
- 10 k ohms
Battery life:
When using the optional
rechargeable battery (fully
charged)
Continuous recording:
Approx. 7 hours
Continuous play:
Approx. 12 hours
●
The continuous recording time is for analogue inputs
when the volume lev el 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
25°C (77°F).
●
The operating time when using an alkaline battery
may be different, depending on the type and manufacturer of the battery, and on the operating temperature.
When using a commercially available, high capacity,
"AA" size (LR6), alkaline
battery
Continuous recording:
Approx. 3 hours
Continuous play:
Approx. 12 hours
■ MiniDisc Recorder
Type:
Signal read-
out:
Audio chan-
nels:
Frequency
response:
Rotation
speed:
Error correc-
tion:
Coding:
Recording
method:
Sampling frequency:
Wow and
flutter:
Specifications for this model are subject to change without prior
notice
Portable MiniDisc recorder
Non-contact, 3-beam semi-conductor
laser pick-up
Stereo 2 channels/monaural (long-play
mode) 1 channel
20 - 20,000 Hz (±3 dB)
Approx. 400 - 900 rpm
ACIRC (Advanced Cross Interleave
Reed-Solomon Code)
ATRAC (Adaptive TRansform Acoustic
Coding), 24-bit computed type
Magnetic modulation overwrite method
44.1 kHz (32 kHz and 48 kHz signals
are converted to 44.1 kHz, and then recorded.)
Unmeasurable (less than ±0.001% W.
peak)
– 4 –
MD-MT90/90C
MD-MT80W/90W/90/90C
■ General
Power source:
DC 1.2V: Rechargeable Nickel-Metal Hydride
battery (AD-N70BT) x 1
DC 5V: AC adaptor (AC 120V, 60 Hz)
DC 1.5V: Commercially available, "AA" size
(LR6), alkaline battery x 1
DC 4.5V: Optional car adaptor, AD-CA20X(for
cars with a 12 - 24V DC negative
ground electrical system)
Power consumption:
Output power:
Charging
time:
Input sensitivity:
Recording
level
MIC H 0.25 mV 10 k ohms
MIC L 2.5 mV 10 k ohms
LINE 100 mV 20 k ohms
Output level:
Headphones
LINE 250 mV
Dimensions:
Weight:
Input jack:
7 W (AC adaptor)
RMS; 20 mW (10 mW + 10 mW)
(0.2% T.H.D.)
Approx. 3.5 hours (90 %)
Approx. 5.5 hours (fully charged)
(When using the AC adaptor included
with the unit)
Reference input
level
Specified
output
- 10 mW + 10 mW16 ohms
(-12 dB)
Width: 3-7/32" (81.1 mm)
Height: 13/16" (19.9 mm)
Depth: 3-21/32" (92.4 mm)
0.38 lbs. (172 g) with rechargeable bat-
tery
Line/optical digital, microphone (pow-
ered by the main unit)
Maximum
output level
Input impedance
Load impedance
- 10 k ohms
Battery life:
When using the rechargeable battery (fully charged)
included with the unit
Continuous recording:
Approx. 7 hours
Continuous play:
Approx. 12 hours
●
The continuous recording time is for analog inputs
when the volume lev el 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
77°F (25°C).
●
The operating time when using an alkaline battery
may be different, depending on the type and manufacturer of the battery, and on the operating temperature.
When using a commercially available, high capacity,
"AA" size (LR6), alkaline
battery
Continuous recording:
Approx. 3 hours
Continuous play:
Approx. 12 hours
■ MiniDisc Recorder
Type:
Signal read-
out:
Audio chan-
nels:
Frequency
response:
Rotation
speed:
Error correc-
tion:
Coding:
Recording
method:
Sampling frequency:
Wow and
flutter:
Portable MiniDisc recorder
Non-contact, 3-beam semiconductor
laser pickup
Stereo 2 channels/monaural (long-play
mode) 1 channel
20 - 20,000 Hz (±3 dB)
Approx. 400 - 900 rpm
ACIRC (Advanced Cross Interleave
Reed-Solomon Code)
ATRAC (Adaptive TRansform Acoustic
Coding), 24-bit computed type
Magnetic modulation overwrite method
44.1 kHz (32 kHz and 48 kHz signals
are converted to 44.1 kHz, and then recorded.)
Unmeasurable (less than ±0.001% W.
peak)
Output jack:
Headphones (impedance: 16 ohms)/
remote control unit
– 5 –
MD-MT80W/90W/90/90C
MD-MT80W
ACCESSORIES
AC Adaptor x 1
or
Connection Cable (for analogue
Headphones x 1
Notes:
●
Parts and equipment mentioned in this operation manual other than those detailed above are not included.
●
The AC adaptor may be different from the one in the drawing.
MD-MT90W
Connection Cable (for analogue
recording) x 1
recording) x 1
MD-MT90W
AC Adaptor x 1
or
or
or
or
or
Headphones x 1
Notes:
●
Parts and equipment mentioned in this operation manual other than those detailed above are not included.
●
The AC adaptor may be different from the one in the drawing.
Remote Control x 1
Connection Cable (for
digital recording) x 1
Rechargeable Nickel-Metal
Hydride Battery (AD-N70BT) x 1
MD-MT90/90C
Remote Control x 1
(RRMCW0002AWSA)
Rechargeable NickelMetal Hydride Battery
(AD-N70BT) x 1
(UBATM0003AWSA)
Notes:
●
Parts and equipment mentioned in this operation manual other than those detailed above are not included.
●
The AC adaptor may be different from the one in the drawing.
Headphones x 1
(RPHOH0005AWZZ)
Connection Cable (for
analog recording) x 1
(QCNWG0029AWZZ)
AC Adaptor
(RADPA3048AWZZ) x 1
Connection Cable (for
digital recording) x 1
(QCNWG0422AFZZ)
Battery Carrying Case x 1
Battery Carrying Case x 1
(UBAGC0003AWZZ)
Carrying Bag x 1
(UBAGC0006AWSA)
– 6 –
NAMES OF P ARTS
Main unit
■
1.5V DC Input Jack
2.Optical/Line Input Jack
3.Microphone Input Jack
4.Bass/Delete Button
5.Edit/Auto Mark/Time Mark Button
6.Display/Character Select Button
7.Mode/Charge Button
8.Record/Track Mark Button
9.V olume/Cursor/Fast Forw ard/Fast Reverse/
Recording Level/Name Select Button
10.Play/Pause Button
11.Stop/Power Off/Hold Button
12.Enter/Fast Play/Synchro Button
13.Remote Control/Headphones/Line Output Jack
14.Open Lever
15.Battery Cover
MD-MT80W/90W/90/90C
Illustration: MD-MT90W/90/90C
■
Main unit
1.5V DC Input Socket
2.Optical/Line Input Socket
3.Microphone Input Socket
4.Bass/Delete Button
5.Edit/Auto Mark/Time Mark Button
6.Display/Character Select Button
7.Mode/Charge Button
8.Record/Track Mark Button
9.V olume/Cursor/F ast Forward/Fast Reverse/
Recording Level/Name Select Button
10.Play/Pause Button
11.Stop/Power Off/Hold Button
12.Enter/Fast Play/Synchro Button
13.Headphones/Line Output Socket
14.Open Lever
15.Battery Cover
Illustration: MD-MT80W
– 7 –
MD-MT80W/90W/90/90C
NAMES OF PARTS
Display panel
■
1.Level Meter
2.Record Indicator
3.Remaining Recording Time Indicator
4.Monaural Long-Play Mode Indicator
5.Repeat Indicator
6.TOC Indicator
7.Synchro Recording Indicator
8.Disc Mode Indicator
9.Disc Name Indicator
10.Track Name Indicator
11.Total Track Number Indicator
12.Fast Play Indicator
13.Battery Indicator
14.Random Indicator
15.Track Number Indicator
16.Character/Time Information Indicator
Remote control unit (MD-MT90W/90/90C)
■
1.Headphones Jack
2.Bass/Delete/Track Mark Button
3.Volume Down/Cursor Button
4.Volume Up/Cursor Button
5.Hold Switch
6.Play/Pause Button
7.Fast Reverse/Record ing Level Do wn/Name Select
Button
8.Fast Forward/Recording Level Up/Name Select
Button
9.Stop/Power Off Button
MD-MT80W/90W
OPERATION MANUAL
Battery Power
1
Illustration: MD-MT90W
■
Charging the rechargeab le batte ry
When a separately available rechargeable battery is
used for the first time or when you use it after a long
period of disuse, be sure to charge it fully.
1
Insert the rechargeable battery.
2
A rechargeable battery other than the AD-N70BT
cannot be
2
Plug the AC adaptor into the wall socket, and
then insert the plug on the other end into the DC
IN 5V socket.
3
Press the MODE/CHRG button.
" " will flash, and battery will begin charging.
●
After the rechargeable battery is charged or used, it
will get slightly warm. This is normal.
●
When the portable MD is turned on or operating, the
battery will not be charged.
charged.
– 8 –
MD-MT90/90C
■ Using with the rechargeable or alkaline
battery
Notes:
●
Setting the volume le v el to "0" whilst recording with the
rechargeable or an alkaline battery reduces the battery drain.
●
When you do not use the unit for hours, remove the
battery. (The battery drains gradually even when the
power is turned off.)
●
This unit can be used with the AC adaptor when the
●
Carry the battery in the supplied case.
(Except for MD-MT80W)
rechargeable or an alkaline battery is in the unit.
Caution:
Do not use a nickel-cadmium battery.
1
Disconnect the AC adaptor.
2
Insert the rechargeable battery or alkaline battery from
the (+) marked side.
Use a commercially available LR6,
"AA" size alkaline battery.
Battery Power
MD-MT80W/90W/90/90C
■ Charging the rechargeable battery
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
Insert the rechargeable battery.
A rechargeable battery other than the one supplied
or the optional one (AD-N70BT) cannot be charged.
2
Plug the AC adaptor into the AC out let, and
then insert the plug on the other end into
the DC IN 5V jack.
3
Press the MODE/CHRG button.
" " will flash, and battery will begin charging.
●
After the rechargeable battery is charged or used, it
will get slightly warm. This is normal.
●
When the portable MD is turned on or operating, the
battery will not be charged.
MD-MT80W/90W/90/90C
■ Checking the remaining amount of bat-
tery level
The remaining amount of battery level is shown by the
battery indicator ( ) during operation.
●
When the battery is completely discharged, the 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" will appear. Then, the power will be disconnected automatically.
Notes:
●
If you use the battery which you stopped charging
halfway, " " may appear. It does not mean that the
battery is completely charged.
●
The battery indicator will not correctly display the
remaining capacity for approximately 10 seconds after
the power has been turned on.
●
When the AC adaptor 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, depending on the operation
being performed. This is normal.
– 9 –
MD-MT80W/90W/90/90C
Error Messages
ERROR MESSAGES
BATT EMPTY
BLANK MD
Can't COPY
Can't EDIT
Can't READ (*)
Can't REC
Can't STAMP
Can't WRITE
DEFECT
DISC FULL
Er-MD (**)
HOLD
LOCKED
NO DISC
Number or symbol appears in (*) position. (Refer to P.29)
The battery is run down.
●
Nothing is recorded.
●
You tried to record from a co py prohibited
●
MiniDisc.
A track cannot be edited.
●
The disc data cannot be read bec ause the
●
disc or unit is damaged.
Recording cannot be performed correctly
●
due to vibration or shock .
Stamp function does not work.
●
Cannot save the TOC information correc tly
●
to a MiniDisc. (A large portion of the dis c has
been damaged.)
The disc is scratched.
●
The disc is out of recording space.
●
The microprocessor has reported a system
●
fault and the unit is out of order.
The unit is in the hold mode.
●
You removed a MiniDisc while recording or
●
editing.
A disc has not been loaded.
●
MEANING REMEDY
Charge the rechargeable battery or replace the al-
●
kaline battery (or use the AC adaptor for power).
Replace the disc with a recorde d disc.
●
Record using the analog cable.
●
Change the stop position of the track and then edit it.
●
Reload the disc.
●
Replace it with another reco rded disc.
●
Re-record or replace it with another recordable
●
disc.
Check the number of tracks.
●
Replace the disc with another recordable disc.
●
If the sound you hear is not right, record again.
●
Replace the disc with another recordable disc.
●
Replace it with another recordable disc.
●
To have it repaired, go to the dist ributor where you
●
purchas ed t he un i t.
Cancel the hold mode.
●
Turn off the power and remove the MiniDisc.
●
Load a disc.
●
NO SIGNAL
NOT PLAY
PLAY MD
POWER ?
PROTECTED
SORRY
TEMP OVER
TOC FORM (**)
TOC FULL
Tr. Protect
? DISC
Number or symbol appears in (*) posit ion. (Refer to P.29)
Poor connection of the digital cable.
●
No output signal comes out from the
●
connected unit to playback.
The input signal has improper sampling
●
frequency.
You tried to play back a tra ck that can-
●
not be played with this eq uipment.
You recorded on a playback-only disc.●Replace it with a recordable disc.
●
Improper power is being supplied.
●
The write protection t ab of a MiniDisc is
●
set to the protected position.
You tried to record on a playback-only disc.
●
Since a track number is curren tly being
●
located or updated, the unit cannot accept your command.
The temperature is too high.
●
There is an error in the recording signal.●Erase all of the tracks, and then record again.
●
There is no space left for recording
●
character information (track names,
disc names, etc.).
The track has been protected from be-
●
ing erased.
A disc which contains data other than
●
music was played.
There is an error in the s ignal rec orded
●
on the disc.
Connect the digital cable securely.
●
If the portable CD player has a fun ction to preve nt sound
●
skips, deactivate it .
Playback with the connected unit.
●
Play back another track.
●
Use one of the specified power sources.
●
Move the wri te pro tection ta b ba c k to its origin al po s i -
●
tion.
Replace it with a recordable MiniDisc.
●
Wait for a while and try the operation again.
●
Turn off the power, and wait for a while.
●
Replace it with another recordable disc.
●
Edit the track with the device on which it was recorded.
●
A disc which contains n on-music dat a cannot be pla yed.
●
Replace it with another recorded disc.
●
– 10 –
MiniDisc System Limitations
The unit may have the following symptoms while recording or editing. The unit is not out of order.
SYMPTOM LIMITATIONS
"DISC FULL" or "TOC FULL" appears
even though the MiniDisc still has recording time left.
The remaining recording time does not
increase even though you erased
tracks.
The total of the recorded time and the
remaining time does not match the maximum recordable time.
Combine function does not work.
Sound skips in fast reverse/forward.
A track number is created in the middle
of a track.
More than 255 tracks (maximum) cannot be recorded regardless of
the recording time. If the MiniDisc is recorded or edited repeatedly or
if it has scratches (recording skips scratched parts), you may not be
able to record the maximum tracks above.
The unit does not count non-recorded portions that last 12 or fewer
seconds to display the remaining recording time. The time may not
increase even if you erase short tracks.
One cluster (approximately 2 seconds) is the minimum unit for recording. For example, a 3-second track uses 2 clusters (approximately 4 seconds). Therefore, the actual recordable time may be
shorter than the displayed time.
A MiniDisc on which recording and editing are repeated may not allow the combine function.
One track is divided and recorded in separate places on a repeatedly
recorded or edited MiniDisc. Sound may skip.
A track number may be created if there are scratches or dust on the
MiniDisc.
MD-MT80W/90W/90/90C
Troubleshooting
Many potential "probl ems" can be resolv ed by the o wner without calling a service techn ician. If so mething seems to be wrong
with this product, check the following before calli ng your authorised SHARP dealer or service centre.
PROBLEM CAUSE
The unit does not turn on.
No sound is heard from the earphones.
When the operation buttons are
pressed, the unit does no t respond.
Some sounds are skipped.
The MiniDisc cannot be ejected.
Recording and editing are impossible.
Is the AC adaptor disconnected?
●
Is the battery exhausted?
●
Is the unit in the h old mode?
●
Has condensation formed inside the unit?
●
Is the unit being influenced by mechanical shock or by static electricity?
●
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?
●
Is the unit in the h old mode?
●
Is the battery exhausted?
●
Is the remote control unit plug or the headphones plug inserted firmly?
●
Is the battery exhausted?
●
Is the unit bein g s u bj ected to exc e ss i v e vib r ation?
●
Has the track number or cha r acter information been wri tten on the disc yet?
●
Is the unit in the recording or editing mode?
●
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 h old mode?
●
Is an optical signal being o utput from the stereo system? Read the operation
●
manual for the stereo sy st em.
(Remote control unit : MD-MT90W/90/90C Only)
– 11 –
MD-MT80W/90W/90/90C
MD-MT90 ONLY
1
Inserting a MiniDisc
Quick Guide / Guía rápida
PORTABLE MINIDISC RECORDER
GRABADOR/REPRODUCTOR MINIDISC
PORTÁTIL
MODEL
MD-MT90
Quick Setup Guide
Guía rápida de configuración
/MODELO
Follow the setup procedure (1-3) before you use
this unit.
Siga los procedimientos de configuración (1-3) antes de utilizar el aparato.
Quick Operation Guide
Guía rápida de operación
Explains basic recording and playback procedures.
Explica los procedimientos básicos de grabación y
reproducción.
Refer to the operation manual for details.
Para más detalles, consulte el manual de manejo.
Inserción de un minidisco
44
222
33
Insert according to the direction of the arrow.
Insértelo de acuerdo con la dirección de la flecha.
1 Slide the OPEN lever to re-
lease the compartment door.
Deslice la palanca OPEN para
abrir la puerta del compartimiento.
2 Lift it up.
Levántela.
Recordable
Para poder
grabar
Recording
prevented
Para no poder
grabar
3 Insert a MiniDisc as shown.
Inserte un minidisco como se
muestra.
4 Close the compartment door.
Cierre la puerta del compartimiento.
When you record on a MiniDisc,
check that the erase prevention tab
is set to the “Recordable” position.
Cuando grabe en un MD, compruebe
que la lengüeta de prevención contra borrado esté puesta en la posición
"grabable".
1
2
Connect the AC adaptor
Conecte el adaptador de CA
AC 120V, 60 Hz
120V CA, 60Hz
1
To an AC outlet
A un tomacorriente
de CA
1
Plug the AC adaptor into the
AC outlet.
Enchufe el adaptador de CA en
el tomacorriente de CA
Before using the unit with a rechargeable battery , the battery has to be charged. Refer
to “Battery Power”, pages 28-29 (operation manual) for details.
Antes de emplear el aparato con una batería recargable, se deberá cargar la
batería. Consulte el apartado de "Alimentación con pilas", en las páginas 28-29
(manual de manejo) para más detalles.
To the DC IN 5V jack
A la toma DC IN 5V
.
2
Insert securely, all the way in.
Insértela con seguridad a fondo.
2
Insert the plug on the other
end into the DC IN 5V jack.
Inserte la clavija del otro
extremo en la toma DC IN 5V.
3
Connections /
White: T o Left
Blanco: A la
izquierda
LINE OUT
NOTE:
Refer to page 11 (operation manual) for connecting the unit to a stereo system
with “DIGITAL OUT” or “OPTICAL OUT” jacks.
NOTA:
Para conectar el aparato a un sistema estéreo provisto de tomas de salida digital
"DIGITAL OUT" o de salida óptica "OPTICAL OUT", consulte la página 1 1 (manual
de manejo).
To a stereo system with
jacks
Note:
LEFTRIGHT
If the audio system has only one pair of jack then they are usually
for input only and recording via this connection is not possible.
A un sistema estéreo provisto de tomas de salida de
línea "LINE OUT" o de salida de audio "AUDIO OUT"
Nota:
Si el sistema de audio sólo tiene un par de tomas, normalmente
son sólo de entrada y no puede realizarse la grabación mediante
esta conexión.
Conexiones
OPTICAL/
LINE IN
Red: T o Right
Rojo: A la
derecha
“LINE OUT” or “AUDIO OUT”
– 12 –
MD-MT80W/90W/90/90C
Playing /
Reproducción
1
Insert the headphones plug firmly into the headphones jack
on the remote control unit.
Inserte firmemente la clavija de los auriculares en la toma de auriculares del
controlador remoto.
2
Plug the remote control into the REMOTE jack on the unit.
Enchufe el controlador remoto en la toma REMOTE del aparato.
3
Insert a MiniDisc.
Inserte un MD.
4
Press the PLAY/PAUSE
button.
Playback starts automatically with a playback-only MiniDisc or a MiniDisc
which is protected against accidental erasure (Auto-play function).
Pulse el botón PLAY/PAUSE.
La reproducción se inicia automáticamente con un minidisco de sólo reproducción o
un minidisco protegido contra borrado accidental.(Función de reproducción
automática)
To stop playback
Press the ■ / :OFF button.
If the unit is not operated for at least 2
minutes while in the stop mode, the
power will shut off automatically.
Para detener la reproducción
Pulse el botón
■
/:OFF.
Si el aparato no se utiliza durante un
mínimo de 2 minutos en el modo de
parada, la alimentación se desconectará
automáticamente.
Preparation for use
Preparación para su utilización
The unit does not work if the unit is in the hold mode.
El aparato no funciona si está en el modo de retención.
Press the HOLD button for 2 seconds or more.
Pulse el botón
CAUTION:
It is not recommendable to put the MiniDisc into a rear
pocket, as this may damage the product when sitting.
PRECAUCIÓN:
No se recomienda ponerse un minidisco en el bolsillo
trasero del pantalón, porque podría dañarlo al sentarse.
HOLD
durante 2 o más segundos.
Hold
Retención
Released
Liberación
Recording /
Check that the unit is connected to the stereo system.
Compruebe que el aparato esté conectado al sistema estéreo.
1
Press the REC button.
Pulse el botón REC.
2
Begin playback on the stereo system connected to this unit.
Inicie la reproducción en el sistema estéreo conectado a este aparato.
3
Press the
Adjust the recording level so that the maximum sound volume from the
source makes the reading swing somewhere between —4 dB and 0 dB.
Pulse el botón
Ajuste el nivel de grabación para que el volumen de sonido máximo de la fuente
produzca una indicación de entre —4 dB y 0 dB.
This unit can adjust the digital recording level just the same as the analog
recording.
Este aparato puede ajustar el nivel de grabación digital del mismo mode que en el
caso de la grabación analógica.
55
5 or
55
55
5
o
55
Level meter indicator
Indicador del medidor de nivel
Grabación
44
4 button
44
44
4
44
to adjust the recording level.
para ajustar el nivel de grabación.
0dB
4dB
Recording: continued
4
Press the PAUSE button on the stereo system to enter the play-
back pause mode.
Here you can search for the track to record.
Pulse el botón PAUSE del sistema estéreo para establecer el modo de pausa
de reproducción.
Aquí podrá buscar la pista a grabarse.
5
Press the PLAY/PAUSE button to start the MiniDisc unit re-
cording.
Pulse el botón PLAY/ PAUSE para iniciar la grabación del aparato de MD.
6
Begin playback on the stereo system, and the output will be
recorded.
Inicie la reproducción del sistema estéreo, y se grabará la salida.
To stop recording
Press the ■ / :OFF button.
When recording stops, “TOC” appears
(T able Of Contents). While “T OC” appears, recorded contents have not yet
been updated on the MiniDisc.
Para detener la grabación
Pulse el botón
Cuando se detenga la grabación,
aparecerá “TOC” (índice). Mientras
aparece “TOC”, aún no se habrá
actualizado el contenido grabado en el MD.
■
/:OFF.
TOC display
Visualización
TOC
To update the recorded contents
of the MiniDisc
Press the ■ / :OFF button while in
the stop mode.
The power turns off after recorded
contents have been updated on the
MiniDisc.
Para actualizar el contenido
grabado del MD
Pulse el botón
parada.
La alimentación se desconectará después
de haber actualizado el contenido grabado
en el MD.
■
/:OFF en el modo de
– 13 –
MD-MT80W/90W/90/90C
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 position the
wires in the same location.
Use the specified screws to fix the cabinet and the
mechanism unit. The use of the screws with length other
than specified may cause contact with the mechanism
unit resulting in malfunction.
3. When repairing, pay close attention so not to damage the
IC from static electricity.
STEP
REMOVAL
1 Bottom Cabinet 1. Screw ..................... (A1) x6 14-1
2 Top Cabinet 1. Open the Top cabinet. 14-1
3 Main PWB 1. Open the Battery Lid. 14-1
4 Mechanism Unit 1. Screw .................... (D1) x2 14-3
PROCEDURE
2. Screw ..................... (B1) x4
3. Flexible PWB.......... (B2) x2 14-2
2. Screw .................... (C1) x4 14-2
3. Flexible PWB......... (C2) x2
4. Soldering ............... (C3) x2
2. Raise the rear part, and
remove in the arrow direction.
FIGURE
Illustration: MD-MT90W
(B1) x2
ø1.4 x2mm
Top Cabinet
(A1) x2
ø1.4 x2mm
(C1) x3
ø1.7 x2.5mm
(C2) x1*
Open Lever
(C3) x1
Main PWB
Pull
(A1) x1
ø1.4 x2mm
Bottom Cabinet
Figure 14-1
Pull
(A1) x2
ø1.4 x2mm
(C1) x1
ø1.4 x2.5mm
Pull
Pull
Pull
Battery Lid
(A1) x1
ø1.4 x2mm
(B2) x2
(B1) x2
ø1.4 x2mm
(C2) x1
(C3) x1
Mechanism Unit
(D1) x1
ø1.4 x1.5mm
Center Cabinet
Figure 14-3
(D1) x1
ø1.4 x1.5mm
Center Cabinet
Felt
Put the fold on the connector, and apply
with the felt. Sagging may result in contact
with the sheet metal.
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 14-2
– 14 –
REMOVING AND REINSTALLING THE MAIN PARTS
Remove the mechanism according to the disassembling methods 1 to 4. (See Page 14.)
How to remove the spindle motor (See Fig. 15-1.)
1. Remove the solder joints (A1) x 4 of flexible PWB.
2. Remove the screws (A2) x 3 pcs., and remove the spindle
motor.
How to remove the Lift motor (See Fig. 15-2.)
1. Remove the solder joints (B1) x 2 of lift motor lead wire.
2. Remove the screw (B2) 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. 15-3.)
1. Remove the stop washer (C1) x 1 pc., and remove the drive
gear (C2) x 1 pc.
2. Remove the screws (C3) x 2 pcs.
3. Remove the solder joints (C4) x 2 of flexible PWB., and
remove the sled motor.
Note:
Take care so that the motor gear is not damaged.
(If the gear is damaged, noise is caused.)
(A2) x3
ø1.4 x2.5mm
Spindle
Motor
(B2) x1
ø1.4 x4.5mm
Lift Motor
MD-MT80W/90W/90/90C
Mechanism Flexible
PWB Solder joints
(A1)x4
MD Mechanism
Figure 15-1
Remove the
Solder joints
(B1)x2
How to remove the magnetic head (See Fig. 15-4.)
1. Remove the screws (D1) x 2 pcs. of the magnetic head and
the optical pickup, and remove the solder joints (D2) x 2 pcs.
of the head flexible plate.
Note:
Mount carefully so as not to damage the magnetic head.
How to reinstall the optical pickup
(See Fig. 15-5.)
1. Remove the screw (E1) x 1 pc., and remove the spring.
2. Slowly raise the optical pickup.
Optical Pickup Unit
(E1) x1
ø1.7 x3mm
Spring
Stop Washer
(C1)x1
Drive Gear
(C2)x1
MD Mechanism
Figure 15-2
Figure 15-3
(D1) x2
ø1.4 x1.8mm
(C3) x2
ø1.4 x1.2mm
Sled Motor
Mechanism Flexible
PWB Solder joints
(C4)x2
MD Mechanism
Magnetic head
Solder joints
(D2)x2
MD Mechanism
Figure 15-5
MD Mechanism
Figure 15-4
– 15 –
MD-MT80W/90W/90/90C
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.
1 High reflection disc MMD-110 (TEAC Test MD) 88GMMD-110
2 Low reflection disc MMD-212 (TEAC Test MD) 74-minute disc 88GMMD-212
3 Low reflection disc MMD-213A (TEAC Test MD) 80-minute disc 88GMMD-213A
4 Low reflection disc Recording minidisc UDSKM0001AFZZ
Note: Use the low reflection disc on which music has been recorded.
Entering the TEST mode
1. Setting at port (power nonconnected state)
(1) Set the port as follows.
TEST1 : "Low" (TP416)
TEST0 : "High"
(2) Turn the Power ON.
(3) Test Mode START [ 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.)
*Since the unit is changed to the setting for production line inspection , be sure to set it to the default setting state in the following default
setting procedure before returning it to the user.
(3) Indication of microcomputer version for one second [ Z 0 4 A b X ]
Destination
Microcomputer version
(4) Whole LCD lighting for 2 seconds
(5) Test Mode START [ T E S T _ ]
*When the PLAY button is pressed during indication (3) and (4), the process proceeds to (5).
EEPROM version
Leaving the TEST mode
(1) Press the STOP button in the TEST mode stop state.
Shipping setting method
Holding down simultaneously the VOLUME – Button and PLAY Button of the set unit without disc, supply the power from the DC IN plug.
After the indication "INIT" -> "BYE OK" disappears, release the power supply of DC IN.
Test Mode
1. AUTO 1 Mode • Perform preliminary automatic adjustment.
2. AUTO 2 Mode
3. TEST-PLAY Mode
4. TEST-REC Mode
5. MANUAL 1 Mode
6. MANUAL 2 Mode
• If the combination of mechanism and pickup
PWB has been changed, be sure to start from
AUTO1.
• Perform ATT (attenuator) automatic adjustment.
• Perform continuous playback (error rate display,
jump test)
• Continuous playback from the specified address
is performed.
• 1 line, 10 lines or 384 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.
• 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.
• Temperature is displayed. (Updating in real time)
• Seeing the displayed adjustment value, perform
preliminary manual adjustment.
(Error rate indication, jump test)
• Temperature is displayed. (Updating in real time)
• Seeing the displayed adjustment value perform
manfully the preliminary adjustment.
(Error rate indication, jump test)
• Continuous playback is performed
(Error rate display, jump test).
7. RESULT 1 Mode
8. RESULT 2 Mode
9. DIGITAL INPUT Mode
10. ERROR INFORMATION
Mode • Error information is initialized
11. NORMAL Mode
12. EEPROM Mode
13. INNER Mode
• The value adjusted in AUTO1 or MANUAL1 is
indicated.
• (Execution in servo "OFF" state").
• The value adjusted in AUTO 2 or MANUAL 2 is
indicated.
• Adjustment value is changed manually.
(Error rate display, jump test).
• Digital input information is displayed.
• Error information is displayed.
• 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.
• Factors of digital servo are changed manually.
(Each servo is turned on individually.)
• Cut-off frequency of BASS1, BASS2 and BASS3
is selected manually.
• Temperature detection terminal voltage is
measured, and the reference value is set.
• Defaults are selected and set.
• Setting of EEPROM protect area is updated.
(In case of protect releasing)
• Determine the position where the INNER switch
is turned on. (Only high reflection disc).
• The temperature correction is performed only
when servo start is performed, but the posture
correction is not performed.
– 16 –
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-213A or
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.
MD-MT80W/90W/90/90C
• Whenever the DISP button is pressed in the continuous
playback mode, the indication changes as follows.
* Pre-mastered disc
Continuous playback (SUBQ address indication)
Continuous playback (C1 error indication)
Continuous playback (SUBQ address indication)
* Recordabl disc
Continuous playback (ADIP address indication)
Continuous playback (C1 error indication)
Continuous playback (ADIP error indication)
[ S Q ]
[ C E ]
[ S Q ]
[ A P ]
[ C E ]
[ A E ]
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.
• When the PLAY button is pressed while ADJ. OK is
displayed, TEST_PLAY is executed.
3. 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
menu, the target address changes as follows.
0032 → 03C0 → 0700 → 08A0 → 0950 → 0032 →
When the PLAY
is displayed, continuous playback is performed after searching that address.
• Each time the MODE button is pressed while the TEST-PLAY
mode target address is displayed, the digit which is changed
by pressing the FAST FORWARD/FAST REVERSE /
button is changed as follows.
0032 → 0032 → 0032 → 0032 →
• When the FAST FORWARD button is pressed in the
TEST-PLAY mode target address is displayed, the digit of
address specified by the MODE button is set to +1h. (0 to F)
• When the FAST REVERSE button is pressed in the
TEST-PLAY mode target address is displayed, the digit of
address specified by the MODE button is set to -1h. (0 to F)
*
When the FAST FORWARD/FAST REVERSE /
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 FAST FORWARD button is pressed in the
continuous playback mode, the specified number of lines
is jumped in the FWD direction.
• When the FAST REVERSE button is pressed in the
continuous playback mode, the specified number of lines
is jumped in the REV direction.
* When the FAST FORWARD/FAST REVERSE
button is held down, jump is repeated every
approx. 100 ms.
button is pressed while a target address
........
........
........
/
Continuous playback (ADIP address indication)
[ A P ]
4. 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
menu, the target address changes as follows.
0032 → 03C0 → 0700 → 08A0 → 0950 → 0032 →
When the PLAY
address is displayed, continuous playback is performed
after searching that address.
• Whenever the MODE button is pressed in the TEST-REC
mode target address is displayed, the digit which is
changed by the FAST FORWARD/FAST REVERSE /
button changes as follows.
0032 → 0032 → 0032 → 0320 →
• When the FAST FORWARD button Is pressed in the
TEST-REC mode target address is displayed, the digit of
address specified by the BASS button is set to +1h.
• When the FAST REVERSE button is pressed in the
TEST-REC mode target address is displayed, the digit of
address specified by the BASS button is set to -1h.(0 to F)
*
When the FAST FORWARD/FAST REVERSE /
button is held down, the setting changes continuously,
one cycle being 100 ms.
button is pressed while a target
........
........
(0 to F)
– 17 –
MD-MT80W/90W/90/90C
5. 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.
• If the STOP button is pressed during operation in the
NORMAL mode, the NORMAL mode is canceled, and the
power is turned off.
6. Error data display Mode
• Reversing when FAST REVERSE 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
13h :
Excessive number of retry to draw servo during its
adjustment.
16h : COUT detection time over during servo adjustment.
17h : The level of input signal from the RF amplifier is out of
the allowable range.
1Fh :Cannot clear the factor of ENDEC DINT.
21h : Cannot focus on the disc.
22h : Cannot start up the spindle.
23h : Track search time over.
32h : Cannot read P-TOC.
42h : Cannot read U-TOC.
44h : Cannot write U-TOC.
45h : Cannot perform write test of U-TOC.
52h : Cannot write SD. (Sound Data)
71h : Time over during initialization of the pickup position.
72h : Check sum error occurred when reading EEPROM.
73h :
Cannot operate the recording head (by using the EJECT
lever).
91h :
The ambient temperature is out of the allowable range.
7. INNER Mode
• When the STOP button is pressed on the INNER menu
(SQ ______ ), the state is changed to the TEST mode STOP
state.
• : Address
– 18 –
MD-MT80W/90W/90/90C
EEPROM (IC402) writing procedure
1. Procedure to replace EEPROM and write initial
value of microcomputer in EEPROM
(1) Replace EEPROM.
(2) Refer to the latest EEPROM data list.
(3) Press the Display button, ENTER button and Play
button to start the test mode.
(4) Version display
[ V e r . ]
(5) The whole LCD lights.
(6) Test mode stop state.
[ T E S T ]
(7) Press the "BASS" button, and press twice the "FAST
REVERSE
[ E E P R O M ]
(8) 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 + or VOL – button.
(9) Set the temperature reference. (Refer to the Tem-
perature Reference Setting Method.)
(10)
Set according to the EEPROM DATA LIST.
(11)
Press the Stop button.
[ T E S T ]
(12)
Press the Stop button.
(13)
After data is written in EEPROM, turn off power .
(14)
Restore protection of EEPROM.
X
EEPROM version (b ~ Z)
Microcomputer ROM version
" button.
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, FAST REVERSE
x 2 times, PLAY , PLAY in the test mode
STOP state.
• 'TM§§ ' is displayed. (§§= Temperature code,
= Temperature reference)
(3) Once press FAST FORWARD , and determine
the displayed microcomputer TEMP input AD value.
• 'TPin##' is displayed. (## = TEMP input AD value)
(4) At the ambient temperature, determine the tempera-
ture corrected value from the temperature measurement value correction table.
(5) Determine the temperature reference, using the fol-
lowing formula.
• Temperature reference = Microcomputer TEMP
input AD value + Temperature corrected value
(6) Set the temperature reference value by button opera-
tion, and check whether the temperature code indication corresponds to "Temperature Code Identification
Table".
[2] Temperature measurement value correction table
Ambient
temperature
+ 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
Temperature
correction
Center
temperature
[3] Temperature code identification
Ambient
temperature
- 9oC ~ +10oC 08h + 0.5oC
+ 3oC ~ +21oC 07h + 12.5oC
+15oC ~ +33oC 06h + 23.6oC
+26oC ~ +43oC 05h + 35.0oC
– 19 –
Temperature
correction
Center
temperature
MD-MT80W/90W/90/90C
EEPROM DATA LIST (EEPROM version d)
TEMP setting
Item display Set values
T M _ _
Focus setting
Item display Set values
F G 1 _ 3 B H
F F 0 _ 1 0 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
F L p _ 0 6 H
D J G _ 0 D H
F S S _ 1 D H
F T S _ 1 8 H
F S B _ 3 A H
F T B _ 3 8 H
F G M _ 6 6 H
T V G _ 8 4 H
T O 1 _ 5 0 H
T O R _ 5 4 H
Tracking setting
Item display Set values
T G 1 _ 1 C H
T F 0 _ 1 0 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 8 H
T K o _ 2 B H
T K t _ 1 5 H
T D o _ 6 7 H
T D t _ 3 A H
S C o _ 0 0 H
S C t _ 2 A H
S C m _ 5 3 H
C L p _ 2 8 H
C L r _ 3 2 H
J P I _ 0 8 H
K 1 0 _ 6 6 H
T H P _ 0 2 H
T H G _ 0 2 H
T 0 P _ 0 0 H
T 0 G _ F 2 H
T 1 P _ 2 0 H
Calculate values
Spindle setting
Item display Set values
S P G _ 1 A H
S P i _ 6 A H
S P m _ 5 1 H
S P o _ 3 8 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 D 1 _ 5 5 H
S D 2 _ 6 4 H
S P K _ 8 0 H
M P G _ 0 8 H
S P L _ 6 0 H
S P W _ 0 F H
S P B _ 3 2 H
S R i _ 6 B H
S R m _ 6 B H
S R o _ 6 B H
S B R _ 6 6 H
O S L _ 0 0 H
Sled setting
Item display Set values
S L G _ 7 0 H
S L 2 _ 2 0 H
S L M _ 7 0 H
S K k _ 6 8 H
S K t _ 6 0 H
S K m _ 7 0 H
W T m _ 2 4 H
S B T _ 0 0 H
S B L _ 4 8 H
M V 1 _ 4 4 H
M V 2 _ 8 8 H
S L V _ 3 2 H
S l i _ 2 B H
S l m _ 4 B H
S l o _ 5 B H
S L T _ 6 5 H
M M V _ 0 0 H
S L P _ 4 C H
M V T _ 0 1 H
Bass setting
Item display Set values
B 1 A _ 3 F H
B 1 B _ 0 0 H
B 1 C _ 0 0 H
B 2 A _ 1 F H
B 2 B _ 0 0 H
B 2 C _ 0 0 H
B 3 A _ E 2 H
B 3 B _ 0 0 H
B 3 C _ 0 0 H
ADJ. SET setting
Item display Set values
C O K _ 2 8 H
F A T _ C 0 H
T A T _ 3 E H
C A T _ 4 0 H
F A B _ 6 4 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
E Q R _ 0 0 H
Control setting
Item display Set values
C T 0 _ 8 3 H
C T 1 _ 8 1 H
C T 2 _ 3 0 H
C T 3 _ 0 0 H
B P 1 _ 7 D H
B P 2 _ 6 F H
B P W _ 6 6 H
B P S _ 5 F H
B P E _ 5 D H
B R 1 _ 7 E H
B R 2 _ 7 7 H
B R W _ 6 D H
B R S _ 6 9 H
B R E _ 6 1 H
P L E _ A 6 H
R C E _ 9 4 H
S D F _ 1 F H
P W L _ 0 1 H
C G 1 _ A 5 H
C G 2 _ 0 0 H
C H V _ 5 6 H
R F L _ F 0 H
R C 0 _ D 5 H
R C 1 _ D E H
S Y C _ A 6 H
U S A _ 1 8 H
E L T _ A 0 H
F B O _ F C H
M F P _ 4 B H
B S 0 _ 1 7 H
B S 1 _ 7 0 H
B C 0 _ 0 1 H
B C 1 _ D C H
B C 2 _ 0 5 H
B M K _ 1 E H
B E C _ 0 0 H
– 20 –
MD-MT80W/90W/90/90C
: Test Mode STOP
: Pre-auto adjustment menu
: ATT auto adjustment 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
FAST FORWARD FAST REVERSE
FAST REVERSE
FAST FORWARD FAST REVERSE
FAST FORWARD FAST REVERSE
FAST FORWARD FAST REVERSE
FAST FORWARD FAST REVERSE
T R E C
FAST FORWARD FAST REVERSE
: Continuous playback menu
T P L A Y
FAST FORWARD FAST REVERSE
FAST FORWARD FAST REVERSE
FAST FORWARD FAST REVERSE
: Digital input signal monitor menu
D i n M o n
FAST FORWARD FAST REVERSE
E E P R O M
FAST FORWARD FAST REVERSE
I N N E R
FAST FORWARD
FAST FORWARD
FAST REVERSE
FAST REVERSE
FAST FORWARD
* When the [STOP ] button is pressed in specific menu, the "TEST MODE STOP" state is set.
* When the [PLAY ] button operation is performed in the specific menu, the operation of this
menu is executed.
: Pre-adjustment 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
(During the spare style automatic adjustment)
(During the focus balance adjustment)
(During the adjustment that ATT is automatic)
Normality completion
(Adjustment completion)
(Continuance is regenerating)
It confirms that an address proceeds
PLAY
PLAY
A U T O 1
Do the following when replacing the mechanism, the pickup, the
EEPROM (IC402), the LSI(IC201) or the main PWB unit.
A D J . O K
A T 2
A T 1
If you replaced EEPROM, set the EEPROM valume to the final version.
The indication of RAMDOM
A P # # # #
Indication disappears
All the supply of the power supply is turned off
B Y E O K
PLAY
STOP is pushed
MODE
A D J . O K
Enter the test mode, move the pickup to the most internal periphery and execute AUTO1.
(Use the disc of MMD-213A.)
The indication of "TEST"
A D J . O K
AUTO2 It is made to carry it out
Move the pickup to the most internal periphery and press the BASS button
(Fast Forward Button)
PLAY
STOP is pushed
Normality completion
(In such cases as the battery)
– 21 –
MD-MT80W/90W/90/90C
: 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
MODE
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 ] button 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)
: Focus balance Adjustment mode
: Focus balance
# # # : Jitter error
PLAY
b # # #
: 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 ] button 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
– 22 –
MD-MT80W/90W/90/90C
: 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 ] button 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] button is pressed.
0 0 3 2
H
(initial value) 0 3 C 0
H
0 7 0 0
H
0 8 A 0
H
A d 0 0 3 2
A d 0 3 C 0
DISP
DISP
A d 0 7 0 0
DISP
DISP
A d 0 8 A 0
* In the start address setting state the start address change digit changes when the [MODE] button is pressed.
1st digit (initial value) 2nd digit 3rd digit
A d 0 0 3 2
A d 0 0 3 2
MODE
MODE
A d 0 0 3 2
MODE
* In the continuous playback state the number of jump lines changes as follows shown
the [BASS] button 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 3 2
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 [FAST FORWARD/REVERSE / ] button is pressed.
* When the [FAST FORWARD ] button 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 [FAST REVERSE ] button 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).
A d 0 9 5 0 H
0 9 5 0
H
• Focus balance Adjustment mode
DISP
T-PLAY Each indication
b # # #
PLAY
Others indication
* The focus balance adjustment mode is available only for low reflection discs.
* The RANDOM marker lights up in the focus balance adjustment mode.
* The focus balance ( ) can be changed by the [VOL +/–] button operation.
* If the PLAY button is pressed in the focus balance adjustment mode, the unit returns to the
continuous playback mode.
: Continuous playback menu
: Focus balance Adjustment mode
: Focus balance
# # # : Jitter error
– 23 –
MD-MT80W/90W/90/90C
: Continuous record menu
PLAY
T R E C
Continuous Rrecord
A P # # # #
* When the [STOP ] button 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] button 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 3 2
PLAY
A P # # # #
• Continuous record playback from any address
A d 0 0 3 2
0 0 3 2
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 [MODE] button is pressed.
A d 0 0 3 2
1st digit (initial value) 2nd digit 3rd digit
A d 0 0 3 2
MODE
A d 0 0 3 2
MODE
MODE
A d 0 9 5 0
: 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 ] button 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 ] button is pressed in specific menu, the "TEST MODE STOP" state is set.
* When the NORMAL mode is canceled, the power is turned off.
: 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
DISP
E D A T A
C L E A R
FAST FORWARD FAST REVERSE
E 2 § §
FAST FORWARD FAST REVERSE
E 3 § §
FAST FORWARD FAST REVERSE
E 4 § §
FAST FORWARD FAST REVERSE
E 5 § §
FAST FORWARD FAST REVERSE
E 6 § §
FAST FORWARD FAST REVERSE
E 7 § §
FAST FORWARD FAST REVERSE
E 8 § §
FAST FORWARD FAST REVERSE
E 9 § §
FAST FORWARD FAST REVERSE
FAST FORWARD FAST REVERSE
• Error history clear
• Error history display
* When the [STOP ] button is pressed in specific menu, the "TEST MODE STOP" state is set.
: Total recording time
R C
– 24 –
MD-MT80W/90W/90/90C
: 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
FAST FORWARD FAST REVERSE
T r a c k
FAST FORWARD FAST REVERSE
S l e d
FAST FORWARD FAST REVERSE
B a s s
FAST FORWARD FAST REVERSE
T E M P
FAST FORWARD FAST REVERSE
A D J S E T
FAST FORWARD FAST REVERSE
D E Q S E T
FAST FORWARD FAST REVERSE
C T R L
FAST FORWARD FAST REVERSE
FAST FORWARD FAST REVERSE
FAST FORWARD
FAST REVERSE
* When the [STOP ] button is pressed in specific menu, the "TEST MODE STOP" state is set.
* When the [PLAY ] button operation is performed in the specific state, the specific setting menu is set.
: BASS setting menu
PLAY
B a s s
BASS Setting
B 1 A
B 1 B
FAST FORWARD FAST REVERSE
B 1 C
FAST FORWARD FAST REVERSE
* When the [STOP ] button is pressed in specific menu, the "TEST MODE STOP" state is set.
* When the [DISP] button 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 +/–] button is pressed.
(The upper limit varies depending on the items)
* When the [MODE] button is pressed in each state, the set digit is changed.
B 2 A
FAST FORWARD FAST REVERSE
L S I I F
: LSI setting TEST mode menu
B 2 B
B 2 C
FAST FORWARD
FAST FORWARD
FAST REVERSE
FAST REVERSE
B 3 A
FAST FORWARD FAST REVERSE
B 3 B
FAST FORWARD FAST REVERSE
B 3 C
FAST FORWARD FAST REVERSE
: Focus setting menu
PLAY
F o c u s
Focus Setting
F G 1
F F 1
FAST FORWARD FAST REVERSE
FAST FORWARD FAST REVERSE
F F 2
FAST FORWARD FAST REVERSE
F Z H
FAST FORWARD FAST REVERSE
F L n
FAST FORWARD FAST REVERSE
D J G
FAST FORWARD FAST REVERSE
FAST FORWARD FAST REVERSE
FAST FORWARD FAST REVERSE
F S S
F T S
FAST FORWARD FAST REVERSE
* When the [STOP ] button is pressed in specific menu, the "TEST MODE STOP" state is set.
* When the [DISP] button 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 +/–] button
is pressed.
(The upper limit varies depending on the items)
* When the [MODE] button is pressed in each state, the set digit is changed.
F S B
FAST FORWARD FAST REVERSE
F L p
F G M
FAST FORWARD FAST REVERSE
FAST FORWARD FAST REVERSE
FAST FORWARD FAST REVERSE
T V G
T O 1
FAST FORWARD FAST REVERSE
T O R
FAST FORWARD FAST REVERSE
F T B
F F 0
– 25 –
MD-MT80W/90W/90/90C
: Spin setting menu
PLAY
S p i n
Spin Setting
S P G
S P i
FAST FORWARD FAST REVERSE
S P m
FAST FORWARD FAST REVERSE
S P o
FAST FORWARD FAST REVERSE
S P 1
FAST FORWARD FAST REVERSE
S P 2
FAST FORWARD FAST REVERSE
S P 3
FAST FORWARD FAST REVERSE
S P 4
FAST FORWARD FAST REVERSE
S P 5
FAST FORWARD FAST REVERSE
S D 1
FAST FORWARD FAST REVERSE
* When the [STOP ] button is pressed in specific menu, the "TEST MODE STOP" state is set.
* When the [DISP] button 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 +/–] button is pressed.
(The upper limit varies depending on the items)
S D 2
FAST FORWARD FAST REVERSE
S P K
M P G
FAST FORWARD
FAST FORWARD
FAST REVERSE
FAST REVERSE
S P L
FAST FORWARD FAST REVERSE
S P W
FAST FORWARD FAST REVERSE
S P B
FAST FORWARD FAST REVERSE
S R i
FAST FORWARD FAST REVERSE
S R m
FAST FORWARD FAST REVERSE
S R o
FAST FORWARD FAST REVERSE
S B R
FAST FORWARD FAST REVERSE
O S L
FAST FORWARD FAST REVERSE
* When the [MODE] button is pressed in each state, the set digit is changed.
: Tracking setting menu
PLAY
T r a c k
Tracking Setting
T G 1
T F 1
FAST FORWARD FAST REVERSE
FAST FORWARD FAST REVERSE
T F 2
FAST FORWARD FAST REVERSE
T F S
FAST FORWARD FAST REVERSE
T B o
FAST FORWARD FAST REVERSE
T B t
FAST FORWARD FAST REVERSE
T K o
FAST FORWARD FAST REVERSE
T K t
FAST FORWARD FAST REVERSE
T D o
FAST FORWARD FAST REVERSE
T D t
FAST FORWARD FAST REVERSE
* When the [STOP ] button is pressed in specific menu, the "TEST MODE STOP" state is set.
* When the [DISP] button 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 +/–] button
is pressed. (The upper limit varies depending on the items)
S C o
FAST FORWARD FAST REVERSE
S C t
FAST FORWARD FAST REVERSE
S C m
FAST FORWARD FAST REVERSE
C L p
FAST FORWARD FAST REVERSE
C L r
FAST FORWARD FAST REVERSE
J P I
FAST FORWARD
FAST REVERSE
K 1 0
FAST FORWARD FAST REVERSE
T H P
FAST FORWARD FAST REVERSE
T H G
FAST FORWARD FAST REVERSE
T 0 P
FAST FORWARD FAST REVERSE
T 0 G
FAST FORWARD FAST REVERSE
T 1 P
FAST FORWARD FAST REVERSE
* When the [MODE] button is pressed in each state, the set digit is changed.
T F 0
– 26 –
MD-MT80W/90W/90/90C
: Slide setting menu
PLAY
S l e d
Sled Setting
S L G
S L 2
FAST FORWARD FAST REVERSE
S L M
FAST FORWARD FAST REVERSE
S K k
FAST FORWARD FAST REVERSE
S K t
FAST FORWARD FAST REVERSE
S K m
FAST FORWARD FAST REVERSE
* When the [STOP ] button is pressed in specific menu, the "TEST MODE STOP" state is set.
* When the [DISP] button 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 +/–] button is pressed.
(The upper limit varies depending on the items)
* When the [MODE] button is pressed in each state, the set digit is changed.
W T m
FAST FORWARD FAST REVERSE
M V 1
FAST FORWARD FAST REVERSE
FAST FORWARD FAST REVERSE
FAST FORWARD FAST REVERSE
M V 2
FAST FORWARD FAST REVERSE
S B T
S B L
S L V
FAST FORWARD FAST REVERSE
S I i
FAST FORWARD FAST REVERSE
S I m
FAST FORWARD FAST REVERSE
S I o
FAST FORWARD FAST REVERSE
S L P
FAST FORWARD FAST REVERSE
FAST FORWARD FAST REVERSE
FAST FORWARD FAST REVERSE
M V T
FAST FORWARD FAST REVERSE
S L T
M M V
: Temp setting menu
: TEMP reference
: Reference
§ § : Temperature code
: TEMP A/D input value
: Measurement value
PLAY
T e m p
TEMP Setting
T M § §
T p i n
FAST FORWARD FAST REVERSE
* When the [STOP ] button is pressed in specific menu, the "TEST MODE STOP" state is set.
* When the [DISP] button 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 +/–] button is pressed.
* When the [MODE] button is pressed in each state, the set digit is changed.
: Adjustment setting menu
PLAY
A D J S E T
Adjustment Setting
C O K
F A T
FAST FORWARD FAST REVERSE
T A T
FAST FORWARD FAST REVERSE
C A T
FAST FORWARD FAST REVERSE
F A B
FAST FORWARD FAST REVERSE
* When the [STOP ] button is pressed in specific menu, the "TEST MODE STOP" state is set.
* When the [DISP] button 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 [MODE]
button is pressed.
1st digit (initial value) 2nd digit
MODE
MODE
* In the specific state the setting changes in the range of "0h to Fh" when the [VOL +/–]
button is pressed.
* When the [MODE] button is pressed in each state, the set digit is changed.
– 27 –
MD-MT80W/90W/90/90C
Control Setting
C T R L
PLAY
: Control setting menu
C T 0
FAST FORWARD FAST REVERSE
C T 1
FAST FORWARD FAST REVERSE
C T 2
FAST FORWARD FAST REVERSE
C T 3
FAST FORWARD FAST REVERSE
B P 1
FAST FORWARD FAST REVERSE
B P 2
FAST FORWARD FAST REVERSE
B P W
FAST FORWARD FAST REVERSE
B P S
FAST FORWARD FAST REVERSE
B P E
FAST FORWARD FAST REVERSE
B R 1
FAST FORWARD FAST REVERSE
B R 2
FAST FORWARD FAST REVERSE
B R W
FAST FORWARD FAST REVERSE
B R S
FAST FORWARD FAST REVERSE
B R E
FAST FORWARD FAST REVERSE
P L E
FAST FORWARD FAST REVERSE
R C E
FAST FORWARD FAST REVERSE
S D F
FAST FORWARD FAST REVERSE
P W L
FAST FORWARD FAST REVERSE
C G 1
FAST FORWARD FAST REVERSE
C G 2
FAST FORWARD FAST REVERSE
C H V
FAST FORWARD FAST REVERSE
R F L
FAST FORWARD FAST REVERSE
R C 0
FAST FORWARD FAST REVERSE
R C 1
FAST FORWARD FAST REVERSE
S Y C
FAST FORWARD FAST REVERSE
U S A
FAST FORWARD FAST REVERSE
E L T
FAST FORWARD FAST REVERSE
F B O
FAST FORWARD FAST REVERSE
M F P
FAST FORWARD FAST REVERSE
B S 0
FAST FORWARD FAST REVERSE
B S 1
FAST FORWARD FAST REVERSE
B C 0
FAST FORWARD FAST REVERSE
B C 1
FAST FORWARD FAST REVERSE
B C 2
FAST FORWARD FAST REVERSE
B M K
FAST FORWARD FAST REVERSE
B E C
* When the [STOP ] button is pressed in specific menu, the
"TEST MODE STOP" state is set.
* When the [DISP] button 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 [MODE] button is pressed.
1st digit (initial value) 2nd digit
* In the specific state the setting changes in the range of "0h to
Fh" when the [VOL +/–] button is pressed.
* When the [MODE] button is pressed in each state, the set
digit is changed.
MODE
MODE
– 28 –
MD-MT80W/90W/90/90C
: Digital EQ setting menu
PLAY
D E Q S E T
Digital EQ Setting
H Q 1
H Q 2
FAST FORWARD FAST REVERSE
H S G
FAST FORWARD FAST REVERSE
H S O
FAST FORWARD FAST REVERSE
L Q 1
FAST FORWARD FAST REVERSE
L Q 2
FAST FORWARD FAST REVERSE
L S G
FAST FORWARD FAST REVERSE
L S O
FAST FORWARD FAST REVERSE
G Q 1
FAST FORWARD FAST REVERSE
E Q R
FAST FORWARD FAST REVERSE
G Q 2
FAST FORWARD FAST REVERSE
G S G
FAST FORWARD FAST REVERSE
* When the [STOP ] button is pressed in specific menu, the
"TEST MODE STOP" state is set.
* When the [DISP] button 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 [MODE] button is pressed.
1st digit (initial value) 2nd digit
MODE
MODE
* In the specific state the setting changes in the range of "0h to Fh"
when the [VOL +/–] button is pressed.
* When the [MODE] button is pressed in each state, the set digit is
changed.
MD ERROR MESSAGE DISPLAY CONTENT LIST
Display content
(Remote control)
Can' t READ*
(Can' tS) completed.
Can' t READ*
(Can' tT) is not completed.
Can' t READ*
(Can tU) is not completed.
Can't LOCK
(Can'tL)
Er-MD41
(Er-MD41) write test.
Er-MD80
(Er-MD80)
TOC FORM** Abnormal data DISC detection L*: UTOC SELECTOR is Loop * indicates the detailed factor.
(Tform*) a_: Address abnormal
NAME FULL
(N-FULL) exceeds the specification limit.
OPEN The disc compartment is open. Open lid is detected while the
(OPEN) system is running.
Error content
Readout of the information
Readout of the TOC information
Readout of the U-TOC information
The EJECT lever cannot be locked.
Judged it abnormal by the U-TOC
EEPROM readout Check sum error
The number of characters for names
is not
f: Focus error
r: READ ERR
s: Search time over
w: SD write time over
p: Time over at spindle start-up
t_: FTNO > LTNO
Error code
* indicates the detailed factor.
Remarks
– 29 –
MD-MT80W/90W/90/90C
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
TOP VIEW
B
(G)
(3)
E
TOP
VIEW
C
(D)
(2)
(S)
1
2SA1832 GR
2SA17457
RN1444 A
UN5213
UN5210
2SD1979 S
2SD1819 AS
1SS361
• The indicated voltage in each section is the one measured
by Digital Multimeter between such a section and the chassis with no signal given.
• Parts marked with “ ” ( ) are important for
maintaining the safety of the set. Be sure to replace these
parts with specified ones for maintaining the safety and
performance of the set.
REF. NO
SW401 EJECT OFF—ON
SW403 LID OPEN OFF—ON
SW601 DISC PROTECT OFF—ON
DESCRIPTION
POSITION
TOP VIEW
F10J2E
F05J2L
TOP VIEW
HRB0103 B
TOP VIEW
RB731U
TOP VIEW
SBE803
2SA1873 GR
Figure 30 TYPES OF TRANSISTOR AND DIODE
– 30 –
MD-MT80W/90W/90/90C
IC651
MOTOR DRIVER
LB1930M
VCC
VCC VEE
IC841
6372C281
2.8V UP CONVERTER
IC251 FTD2017
IC253 RN4904
IC255 NJM022V
IC256 RN4911
IC257 S80808LN
IC258 259 HN1C01FU
IC260 RN4904
IC809 RN4904
IC892 HN1C01FU
TRANSISTOR,
N-ch MOS FET,
DIGITAL TRANSISTOR,
OPE. AMP,
RESET
M903
LIFT
MOTOR
IC842
XC62HS02
POWER SUPPLY
MICROCOMPUTER
IC822
IR3M14N
DC/DC
CONVERTER
IC501
AD/DA CONVERTER
AK4551VT
M902
SLED
MOTOR
IC101
RF SIGNAL
PROCESSOR
IR3R58M
2.3V REGULATOR
IC771 62GR2322
IC401
SYSTEM
MICROCOMPUTER
IX0409AW
RIPPLE
FILTER
VCC VEE
IC873
62GR4522
4.5V
REGULATOR
OPIC
LASER
PICK
HEAD
M901
SPINDLE
MOTOR
IC201
ENDEC/SERVO/
ATRAC
LR37815
+2.7V
+2.5V
T F
+2.5V
+2.7V
+2.7V
VDD
+2.0V
AVCC
+2.5V
+7V
+2.5V
J703
HEADPHONES
LINE
J703
REMOTE
CONTROL
IC801 62RP2002
IC802 HN1C01FU
IC803 S80819LN
2.0V REGULATOR
TRANSISTOR,
RESET IC
J801
DC IN
(5V)
1.0-1.7V
+2.35V
LCD ASS'Y
KEY FLEXIBLE PWB ASS'Y
IC901
SPINDLE MOTOR
DRIVER
LB1971V
IC703
AUDIO AMP.
IR3R59N
IC701
AUDIO AMP.
IR3R54N
IC601
PWM DRIVER
LV8018W
VM
IC402
EEPROM
58X2404T
VS
IC202
IX2735AF
16M BIT D-RAM
+2.3V
OPTICAL IN
UNIT
J701
OPTICAL IN
J701
LINE IN
J702
MIC IN
(READY FOR
PLUG/IN POWER)
REGULATOR
IC203
62FP1602
EXCLUSIVE
OR GATE
IC871
TC7S86FU
1,2,
21,23
6
5,7
7,30
VCC VG
43
16,18,
20,22
39,41
17,21,27,
40,44
28,29,40
37
26-29,
32-37,
39-46
2-5,
7-11,
14-23
7,9
66
74
51
9
2,3
15,16
4,21
20 17
6,9,16
7,19
10,12
6
24 L-CH
22 R-CH
17
Q721
1-2
2,13,14,24,
25,36,37
6-9
1-12
1,5,6,7
13
14-17
69,
70,
71,
83,
84
6,9,11,
13
75,82
74
2,5,31,
87
18-24
50
5
5
2
5
8
3
1,12
+2.7V
82-84,86,
89-100
14,62,68,87
3
4
2
2
5,6
SW401
EJECT
SW403
LID
OPEN
97
40,57,58,61,63-65,
77,78,98
73
8
PLAYBACK SIGNAL
RECORD SIGNAL
+B
M
M
M
6
Ni - MH Battery
or
Dry Battery
(1 pieces)
+2.7V
+2.7V
1, 20-30,
73, 33-35
R-CH
L-CH
2
R-CH
3
L-CH
3
3
VCC
L-CH
5
8
R-CH
HEAD DRIVER
IC351 74ACT02T
IC354 CPH5608
IC353 FTD2005
VCC
IC852
IR3M14N
DC/DC
CONVERTER
F841
0.4A,DC 60V
2
2
5
100
99
1
7
4
2
VCC
2,3
2
1
+2V
+1-2V
1
+2.5V
IC431
RESET
S80820LN
1
2
62
5
+2.5V
-2.5V
+2.7V
1
7
IC821,851
CPH3413
N-ch MOS FET
Figure 31 BLOCK DIAGRAM
– 31 –
MD-MT80W/90W/90/90C
D
H
P
P
L
C
G
G
0
C
7
MAIN PWB-A
C112
C111
0.1
C102 1
R132
R134
820K(1%)
1
12K
C114
R111
5P(CH)
48 47 46 45 44 43 42 41 40 39 38 37
1234
1+2
CK111
RF1
1
R
CK112
RF2
2
and
CK113
SW
RF3
3
CK114
RF4
4
REFI
5
TP144
6
REFO
AOUT
7
ASW
8
R131
820K(1%)
AIN
9
120K(1%)
BIN
10
BSW
11
R133
12
120K(1%)
BOUT
R135
R136
390K(1%)
EOUT
56K
ESW
(1%)
DIFF
A
PLAYBACK SIGNAL
RECORD SIGNAL
C103
1
B
+B
+B +B
F–
F+
T+
C
FLEXBLE
PWB
TP122
TP121
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
B
A
COM
CVCC
TP118
VCC
DGND
DGND
TP114
TP115
LDON
LDVAR
TP113
RF2
TP108
TP109
TP112
TP110
TP111
9 8 7 6 5 4 3 2 1
9 8 7 6 5 4 3 2 1
RF4
RF3
VCC
MP/R
AGND
TP106
TP107
F
E
TP104
TP105
T+
RF1
TP103
F–
TP102
T–
F+
TP101
T–
18
2
OPIC
OPTICAL PICKUP UNIT(17)
IC351
D
74ACT02T
HEAD DRIVER
E
15
F
G
14
M902
SLED
MOTOR
M
MAGNETIC
HEAD ASS'Y(16)
M901
SPINDLE
MOTOR
M
UP/DOWN
M
M903
LIFT
MOTOR
+B
8
GND
9
10
11
12
C357
13
0.1
14
VCC
C354 0.1
D351
SBE803
4 3
C351
5
47P(CH)
FTD2005
HEAD DRIVER
R921
IC353
330
2
1
R922
100K
C353 10/6.3
IC354
CPH5608
HEAD DRIVER
5
4 3
S
G1
D1
D2 G2
2 1
R361
15
C361
0.039
PDCNT
TP663
TP664
TP662
14 13 12 11 10
14 13 12 11 10
–
+
COM
W
V
U
+
–
MECHANISM FLEXBLE
PWB ASS'Y (15)
TP660
TP656
TP657
TP658
TP659
TP661
9 8 7 6 5 4 3 2 1
9 8 7 6 5 4 3 2 1
TP653
TP654
TP655
INTERRUPTER
8 7 6 5
D2
D1
INNSW
TP651
TP652
PH901
POHOT
(15-2)
7
6
5
4
3
2
1
S2
S1S2G1
S1
TP665
CN601
Q901
UN5210
100K
R920
2
3
1
3
1
C905
4
1
470P
R906
5
1
1.5M
6
1
C904
1
7
0.33
R351 3.9
+B
TP351
G2
VCCHEAD
4 3 2 1
SW601
DISC
PROTECT
C903 0.0022
C902 0.0022
C901 0.0022
R902 1
R903 1
C914
R904 1
0.0022
C913
0.0022
1
8
9
1
2
0
2
1
2
2
3 2
2 4
R901
R601 56K
SL+
SL–
SPVM
TP601
13
H
• NOTES ON SCHEMATIC DIAGRAM can be found on page 30.
• The numbers 1 to 18 are waveform numbers shown in page 37.
1
23456
C109
C110
1
0.22
C1061C107
0.1
PIN
GND1
3+4
NIN
PITG
IC101
IR3R58M
RF SIGNAL
PROCESSOR
BIAS
FOUT
FIN
EIN
FSW
EOUT
56K
(1%)
R137
TP130
TP131
R138
390K
(1%)
+B
R161 1.2K
C165
0.033
C172
IC901
LB1971V
CSLP2
GND
2
1
CSLP1
CX
1
1
NC
DET
1
0
C908 0.047
NC
FC
9
OSC
FG
8
WIN
VCC2
7
VIN
VS
6
UIN
VCC1
5
FCOM
BRK
4
STBY
NC
3
UOUTWOUT
2
VOUT
RF
1
SPINDLE
1
MOTOR
DRIVER
C912
0.0022
100K
R404
R403
+B
1K
TP602
+B
TRDRF
TRDRR
25
26
27
DCNT1
28
29
30
31
0.1
C611
32
33
34
0.1
C612
35
SLDRR
36
SLDRF
L609
47µH
L610
47µH
1
C610
C609 1
R112
BIAS
BOUT
TP132
33/6.3
MOTOR DRIVER
C651
24 23 22 21 20 19 18 17 16 15 14 13
VBAT
S/S
GND
VCC2
CP1
CP2
CP3
CP4
C608
220K
VCC1
AOUT
TP133
C171
C906 0.082
C907 0.082
R908
22K
6
7
8
9
10
IC651
LB1930M
56
R600
1
IN2F
PGND3
OUT2F
12
11
25
26
35
36
OUT4F
PGND6
IN4F
L608
10µH
1
C108
EFMAGC
DCNF
ADIPNF
GND2
BPF
OPICPW
MODE
SGAIN
TCGI
TCGO
R140
390K
L171
10µH
TP171
33/6.3
+B
3.3
C911
G
G
I2
O2
I1
O1
VCC
+B
BAT2
OUT2R
PGND2
MUTE1
OPOUT
IN2R
VBAT/2MON
VGOFF
IN4R
PGND5
OUT4R
BAT4
+B
1
C131
0.1
2-1
36
EFMO
ADAGI
35
ADAGC
34
AGC
ADIP
C132
33
0.22
ADIPO
32
31
WBO
30
VCC2
29
CK102
28
SW
DISC
27
26
25
DTEMP
RFADD
24 23222120 19 18 17 16 15 14 13
39K
R139
0.22
C133
LDON
LDVAR
OPICGA
+B
C910
0.1
5
4
3
2
1
LDCNT1
LDCNT2
FODRF
IN1F
BAT1
OUT1F
OUT1R
PGND1
OPIN+
OPIN–
CLK
VCC1
VG
IN3
MUTE
PGND4
BAT3
OUT3
48 47 46 45 44 43 42 41 4039 38 37
IC601
LV8018W
PWM DRIVER
C113
1
DISC
SGAIN
TEMP
CK901
C652
FODRR
47µH
47µH
12
IN1R
11
10
9
8
7
6
5
4
3
2
1
L601
L602
L604
47µH
0.1
+B
TP100
+B
EFMO
SPIN
SPDRR
D651
F10J2E
L603
47µH
SPDRF
TP139
16
11
CK108
17
22K
R101
R102
R103
22K
22K
R104 22K
C124
330P
C121
220P
10
4
3
TP211
C204
CK209
CK210
+B
0.47
+2.5V
C123
C122
FOK
SENSE
CIN
DINT
R204 1K
XRT
SYD0
SYD1
SYD2
SYD3
SYD4
SYD5
SYD6
SYD7
SYWR
SYRD
330P
SYRS
220P
+B
+B
+B
DISCPR
F–F+T–
T+
+B
1
C603
C601 1
C602 1
C604 1
0.1
C622
TP610
VCCPWM
Figure 32 SCHEMATIC DIAGRAM (1/2)
– 32 –
TP202
22P
C221
CK203
CK202
CK201
680
L204
R207
100mA
1
TP208
CK208
75 74 73 72 71 70 69 68 67 66 65 64 63 62 61 60 59 58 57 56 55 54 53 52 51
TP209
76
77
78
FEMON
DADATA
TP210
OPTCNT
79
DAPON
80
ADPON
81
CK204
FOK
82
SENSE
83
CK205
COUT
84
CK206
MCCK
85
DINTX
86
C203 0.1
VDD2
87
88
DGND
RSTX
89
SYSD0
90
SYSD1
91
SYSD2
92
SYSD3
93
94
SYSD4
SYSD5
95
96
SYSD6
97
SYSD7
98
99
100
EFMMON
AVCC
9
TP201A
TP201
C207
0.1
HDON
SYD7
RCAULT
MCPGIN
INPGIN
INPGCK
R422
100K
OPICGA
PBMUTE
PBAULT
LDON
DISC
SGAIN
TP204
CK207
DIN
BCLK
LRCK
DFCK
DOUT
DGND
ADDATA
PLLBVC
76
TOTMON
77
TEMON
78
HDON
IC201
LR37815
ENDEC/SERVO/ATRAC
98
SYWRX
99
SYRDX
100
SYRS
VREF
WBI
TCG
AGND
AIN
BIN
EFMI
AVCC2
9 8 7 6 5 4 3 2 1
0.1
C209
SYD1
SYD2
SYD3
SYD4
SYD5
SYD6
25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10
26
27
SYD1
SYD2
28
SYD6
29
SYD7
30
VSS
31
RCLAT
32
MCPGI
33
INPGI
34
INPGCK
35
RCPCNT
36
TEST1
TP416
37
TEST0
38
TP417
JPNP
39
VCC
40
OPICGA
41
PBOPON
42
PBLAT
43
LDON
44
DISCP
45
SGAIN
46
RACLK
47
48
49
50
PA2
ELON
+B
AUSCLK
AUDATA
PDCNT
INNSW
+B
+B
C221,L204 : MT90/90C Only
R207
680 ohms, RESISTOR : MT90/90C
0 ohms, JUMPER : MT80W/90W
XL201
33.8688MHz
C211 5P
C212
R222 1M
8P
X1I
X1O
FIN
EIN
C205
SYD0
SYWR
SYD0
SYWR
PDCNT
DGND
VBAT
TP206
0.1
R206
27K
(1%)
SYRD
SYRD
26
27
28
48
49
EMOHO
INNSW
+B
LDCNT1
LDCNT2
VXI
VPO
VDD1
EMPH
TEST1
TEST0
DILOCK
LDCNT1
LDCNT2
LEDON1
RAA11
RAD0
EFMO
PLCK
ACRCER
RAA1
RAA2
RAA3
TEST2
X176KO
FODRR
FODRF
TRDRF
TRDRR
RAD1
RAWEX
RARASX
RAA9
RAD3
RAD2
RACASX
DGND
RAOEX
RAA8
RAA7
RAA6
RAA5
RAA4
VDD2
RAA10
RAA0
SLDRF
SLDRR
VDD1
50
49
48
28
27
26
DGND
TP207
SLDRF
TRDRF
SLDRR
FODRF
TRDRR
FODRR
R205
33K(1%)
R412
15K
R411
100K
5
TP409
TP408
6
TP411
7
TP411A
1K
R416
R414 1K
WP
PE4
VSS
EEPK
IX0409AW
SYSTEM
DCEXT
MD0
MD1
WDTOVF
R415 1K
EPCS
EEPD
IC401
RESET
MD2
DSPSCK
SCK0
DSPSCK
NMI
µSTBY
8
DSPSTB
DSPSTB
VCC
SYRS
SYRS
SYD3
SYD4
SYD5
MICROCOMPUTER
RADAT
VSS
BUZOUT
TP400
TP403
XL401
4.19MHz
EMPH0
BEEP
AURESET
D431
1SS361
1
R431
C431
330K
0.47
IC431
S80820LN
RESET
TP212
CK225
50
CK224
49
TCRS
TP203
X700KO
48
CK222
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
SPDRF
SPDRR
25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10
C201
10/6.3
12
L100
10µH
SPDRF
SPDRR
C100
10/6.3
4
3
2
1
TP410
LCDRST
DSPDAT
9 8 7 6 5 4 3 2 1
VSS
RMDAT
LCDRST
DSPDAT
100
PCNT1
99
PCNT2
98
VCC
Vref
78
77
AVCC
76
ARQ
_PLAY
XTAL
REC
EXTAL
VSS
4
OUT
VSS
VDD
3 2
DISCPR
SPWDS
DISCPR
MCMON
CHGON
CHGCNT
CHIMON
PLVBAT
STOP
RF4
R461
EFMO
+B
+B
+B
RFPCNT
CKSTP
XRST
SENSE
DCNT1
PLVON
AVSS
LDVAR
HKEY2
HKEY1
RKEY
TEMP
DINT
100K
R463
TP205
TP407
1K
R413
SPIN
SPIN
EJSW
FOK
VSS
APQD
TP441
100K
CIN
CIN
RPLAY
75 74 73 72 71 70 69 68 67 66 65 64 63 62 61 60 59 58 57 56 55 54 53 52 51
TP402
RPLAY
C454
100
99
98
97
96
95
94
93
92
91
90
89
88
87
86
85
84
83
82
81
80
79
78
77
76
2
3
0.0022
IC402
EEPROM
58X2404T
TP418
R405
10K
TP401
C401 0.1
R425
100K
R402
1
4
D461
RB731U
2
1
R465
220K
R464
+B
+B
R406
100K
TP415
22K
R423
22K
(1%)
DINT
RKEY
SW403
LID OPEN
100K
1
2
3
4
5
6
7
8
9
10
11
12
C202
TP200
47/6.3
16M BIT
VCCDRAM
L202
+2.7V
SW401
EJECT
3
2
TP406
TP405
XRT
FOK
SENSE
LDVAR
HKEY2
HKEY1
TEMP
22K
R424
RB521S30
4 3
5
6
560K
R466
VCC
I/O1
I
I/O2
I
WE
RAS
A10
A0
A1
A2
A3
VCC
I
IX2
33
VCC
4
1
P
C
C
C
P
D467
22K
R467
MD-MT80W/90W/90/90C
220K
58X2404T
+B
+B
EEPROM
P418
R406
100K
R405
10K
TP401
C401 0.1
R425
R423
22K
(1%)
Y
RKEY
1
SW403
4
D461
RB731U
2
1
100K
R465
1
VCC
2
I/O1
3
I/O2
4
WE
RAS
5
6
A10
7
A0
8
A1
9
A2
10
11
A3
VCC
12
C202
TP200
47/6.3
16M BIT D-RAM
VCCDRAM
33
L202
+2.7V
SW401
EJECT
4
3
2
1
TP406
TP405
XRT
FOK
SENSE
TP415
LDVAR
HKEY2
HKEY1
TEMP
22K
22K
R424
DINT
LID OPEN
D467
RB521S30
4 3
5
6
560K
R466
24
GND
23
I/O4
22
I/O3
21
CAS
20
OE
19
A9
A8
18
A7
17
16
A6
A5
15
14
A4
GND
13
IC202
IX2735AF
VCC2R5V
PCNT1
PCNT2
DCNT1
PLVON
CHGON
CHGCNT
C130
0.1
PLVBAT
+B
HPLAY
HREC
STOP
22K
R467
+B
DADATA
ADDATA
DFCK
BCLK
LRCK
ADPON
DAPON
OPTCNT
DIN
EMPH1
+B
+B
IC203
62FP1602
REGULATOR
C206 1
1
2.0V
2
+B
PCNT1
R855
390K
+B
(1%)
R831
180K
(1%)
3.3
R852
CPH3413
IC821,851
D852
F10J2E
N-ch MOS FET
VCC4R5
4 3
+B
5
1
C837
62GR4522
REGULATOR
IC873
4.5V
2
1
+B
C836 1
N-ch MOS FET
PCNT2
PLVBAT
CHGON
PLVON
CHGCNT
IC501
3
+B
D851 D1FH3
+B
C856
68P(CH)
R832
180K(1%)
C839 0.33
R825
300K(1%)
C826
100P(CH)
R827
220K
VG
+2R7
IC821
CPH3413
HKEY2
HREC
HKEY1
STOP
HPLAY
+B
+2.7V
C511
AD/DA
AK4551VT
CONVERTER
5786
C773
0.22
REGULATOR
+B
–B
EMPH0
+B
–2R5
D862
F10J2E
1
D861
C863
C852
C853 220/4
R856 10M
R854
18P(CH)
10K
(1%)
330K
R857
R826
220P(CH)
10M
R824
10K
(1%)
+B
D831
HRB0103B
0.1
C835
D821
D1FH3
C822
22/6.3
C823 220/4
D822
+B
F10J2E
10
C825
R455
R456
R457
5.6K
R451
5.6K
1
8 7 6 5 4 3 2 1
SDTO
SDTI
LRCK
9
1
2
62GR2322
+B
F10J2E
22/6.3
C857
R853
270K
C827
R823
270K
DC/DC CONVERTER
HRB0103B
C834 0.1
R458
8.2K
18K
56K
R453
R452
R454
18K
8.2K
56K
C500
R501
10/6.3
470
C501
0.0022
R502 470
C502
0.0022
VSS
VDD
AINL
AINR
VCOM
DEM1
DEM0
C503 3.3/10
AOUTR
AOUTL
PWAD
PWDA
MCLK
SCLK
16 15 14 13 12 11 10
C506
0.001
5
C774
1
4 3
IC771
2.3V
100µH
L862
100µH
TC7S86FU
EXCLUSIVE
OR GATE
100K
R871
1
2
L851
1
10µH
+B
C862
IC851
CPH3413
N-ch MOS FET
IC852
IC851
IR3M14N
DC/DC CONVERTER
ERRAMP
GND
5
EO
EIN
BUF
6
Q R
RSFF
S
VCC
7
CMP
STAND
EIP
BY
VREF
OSC
8
CTRL
ROSC
ERRAMP
GND
5
EO
EIN
6
BUF
Q R
RSFF
S
VCC
7
CMP
EIP
STAND
BY
VREF
OSC
8
ROSC
CTRL
IC822
IR3M14N
D832
C838
0.1
R833
0.1
47
C832
C833 0.1
L821
10µH
1
C828
IC821
D823
F10J2E
C509
2.2
C510 2.2
VCCADDA
+B
+B
C505
0.001
L771
C771
47/6.3
C869
47/6.3
IC871
VCC
GND
4
3
OUT
2
1
4
3
OUT
2
1
+B
3.3
C821
TP500
–B
TP771
AUDATA
AUSCLK
RCAULT
+B
5
C876
4 3
3.3
C851
C860 1
C830 1
+B
INPGCK
INPGIN
MCPGIN
–B
TP412
R758
R757
+B
TP772
PBMUTE
BEEP
1
6372C281
CONVERTER
D842
C845
HRB0103B
0.1
R844 47
D841
F10J2E
C846 0.1
1
2
IC841
0.22
C843
C842
33/6.3
0.1
C850
+B
C848
1
4 3
2
IC842
1
5
C844
10/6.3
VCCMICOM
+B
AUDIO AMP.
R754 150K
12 11 10
100
2.2K
0.1
C760
AURESET
+B
IC841
2.8V UP
VGBATT
1
C847
+B
5
4 3
R850
100K
R841
100K
39K
R277
R279
C481
1
C482
1
DSPDAT
DSPSCK
DSPSTB
LCDRST
IC701
IR3R54N
C758
1
+B
R761
150K
100K
R762
9 8 7 6 5 4 3 2 1
HP
BIAS
AMP&GAIN SEL.
BEEP
RHPVCC
LOGIC
AMP&GAIN SEL.
DAT
CLK
LAT
LHPVCC
PBAULT
+B
DCVDD
C840
220/4
F841
TP842
0.4A
L841
10µH
DC60V
1
C841
IC842
XC62HS02
POWER SUPPLY
MICROCOMPUTER
4 3
2
5
1
6
IC259
100
HN1C01FU
TP809
R288
D281
1SS400
+B
12 11 10
ROUT
C754
1
RHPVEE
LHPVEE
–B
C753
1
AUDIO AMP.
–B
C849
220/4
TP841
0.1
C259
+B
47K
R719
6.8K
LOUT
RIHP
R702
22
C702
10/6.3
C762
RIN
ATT
ATT
LIN
IC703
IR3R59N
–B
TP451
TP452
TP453
TP454
TP455
TP456
TP457
TP458
TP459
TP460
TP461
TP462
TP463
CN451
TP481
TP482
TP483
TP486
TP487
TP488
TP489
CN482
R720 6.8K
9 8 7 6 5 4 3 2 1
LIHP
VEE
DGND
C704 47/6.3
2.2
R–
LPF
RLPFO
LPF
L–
LLPFO
2.2
C761
R814
10K(1%)
R815
10K(1%)
Q803
UN5213
R819 22K
+B
R295 100K
IC253
RN4904
1
2
R283 100K
Q257
2SA1832 GR
R287
560K
HN1C01FU
1
390K
R284
2
1
2
IC260
RN4904
+B
BASS
1
1
DISP
2
2
EDIT
3
3
MODE/CHRG
4
4
REC
5
5
ENTER/SYNC
6
6
7
7
8
8
9
9
VOL +
10
10
VOL –
11
11
12
12
GND
13
13
KEY SWITCH FLEXIBLE
PWB ASS'Y(221)
1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
9
9
R712 6.8K
R711 6.8K
0.1
C734
RI LI
AGND
VCC
R703
100K
C701
C703 0.01
10/6.3
R701
100
R-CH
R+
+B
1
L+
C492
24 23 22 21 20 19 18 17 16 15 14 13
R765
R767
15
L-CH
R766 15
R768
C766
0.22
C765
0.22
R462
Q461
2SD1819 AS
+B +B
IC802
HN1C01FU
R807 22K
1
6
2
5
4 3
R816 1.5K
2
3
1
0.01
C802
4 3
2
5
1
6
R818
560K
C818 0.1
G1
G2
5
S1
S2
6
S1
S2
7
D
D
8
R293
Q250
2.2K
2SA17457
R294 100K
R281
22K
6
5
1M
R282
4 3
IC258
C251 0.1
6
R285 100K
5
R256 56K
4 3
6
5
R251
4 3
100
R261
1K
R262
120K(1%)
IC255
NJM022V
OPE AMP.
LCD UNIT
:OFF/HOLD
PLAY/PUSE
L710
R717
47
1K
Q711
RN1444 A
C733
0.1
24 23 22 21 20 19 18 17 16 15 14 13
D495
27K
Q801
2SJ520 TL
R813
10K(1%)
1 4
2
62RP2002
2.0V REGULATOR
IC809
RN4904
4
3
2
1
2
1
R286
R255
4.7K
8 7 6 5
V+
IC255
R269
22K
(1%)
C713
3
2
1
1
C712
L-CH
100P (CH)
R-CH
R715
100K
R716
100K
C714
1
+B
R728 1K
C731
R729
0.22
4.7K
C721 3.3/10
C722
R730
3.3/10
4.7K
D496
MA8075M
MA8075M
L491
D494
33
MA8075M
C491
0.1
KEY
PLAY
L454
L453
1K
R492
D492
MA8075M
RPLAY
RKEY
R767,R768
4.7 ohms, RESISTOR : MT80W/90W
0 ohms, JUMPER : MT90/90C
R460
68K
R809
1
R811
1
R812
10K(1%)
D803
RB520S30
3
1
C801
IC801
IC251
FTD2017
N-ch MOS FET
IC892
HN1C01FU
4 3
5
R296
6
100K
1
R292
2.2K
100K
R291 100
Q251
1
2SD1819 AS
S80808LN
C253
C291
R254
0.1
22K
R257
27K(1%)
R253
39K(1%)
–
+
O
D251
1SS400
+ –O
V–
C252
R250 100
4 3 2 1
C254 0.1
47K
(1%)
R266
10K
(1%)
R267
ASS'Y(222)
LCD
LCD
1K
R718
+B
C715
0.1
R713
10K
L702 100mA
L703
100mA
100mA
L704
R714
C711
100P(CH)
10K
C716
R725
0.1
100
Q721
2SD1979 S
R726
39K
C726
R723 6.8K
0.1
C803
OUT
VDD
IC257
0.1
C255 0.1
3.3/10
6.8K
R724
L714 100mA
8.2K
R727
L713 100mA
L-CH
L712 100mA
R-CH
C724
0.001
C723
0.001
L711 100mA
100mA
L456
TP729
L452
100mA 150mA
100mA
D801
R801
F05J2L
1.1A
L800
TP805
R803
560
1.2K
R802
3 2 1
D802
MA8051M
Q891
5
4
2SA1873 GR
R806
56K
OUT
VSS
1
VDD
3 2
IC803
S80819LN
RESET
+B
VCCBATT
4
VSS
3 2
RESET
100
R272
3 2 1
R252
150K(1%)
IC256
RN4911
5
4
6
R271
68K(1%)
R270
68K(1%)
DRIVER
TP706
TP708
TP707
TP701
TP702
TP703
TP704
TP705
C725
3.3/10
TP714
TP713
TP712
TP711
TP726
TP725
TP722
TP724
TP723
TP721
TP727
TP728
TP801
TP802
L801
R808
1(1%)
R810
1(1%)
TP803
TP804
7
VCC
9
Vout
8
GND
6
1
2
3
4
5
J701
OPTICAL
LINE IN
4
2
3
1
J702
MIC IN
6
5
2
4
3
1
7
8
J703
REMOTE
CONTROL/
HEADPHONES
1
2
3
J801
DC IN
BATTERY
TERMINAL
DC 1.2V
(NICKEL-METAL
HYDRIDE )
DC 1.5V
LR6(SIZE AA)
BATTERY
TERMINAL
L
R
GND
7
8 9 10 11 12
Figure 33 SCHEMATIC DIAGRAM (2/2)
– 33 –
MD-MT80W/90W/90/90C
A
C827
C857
R823
R824
C826
R827
TP463
4
3
TP489
D862
IC821
TP842
TP457
TP460
TP461
TP462
TP487
C500
TP403
5
4
IC841
C836
TP208
C204
D861
C830
R204
TP610
C211 C212
C842
4
IC822
5
XL201
TP400
76
TP209
TP210
C203
100
TP202
C503
11 1810
R222
1
8
75
TP201
80
85
90
95
1
C207
B
R811
R807
R809
C802
C803
TP706
2
IC801
C822
C801
1
C840
TP708
TP652
IC803
1
2
1
7
8
9
TP211
TP655
TP703
TP714
D651
TP802
TP602
TP702
TP707
TP660
TP805
TP801
C
D
J701
OPTICAL
LINE IN
J702
MIC IN
J801
DC IN
5V
TP701
TP705
R801
TP704
TP712
E
C726
C725
TP713
R726
TP711
F
Q721
SW601
DISC
PROTECT
R725
C721
C722
TP726
TP665
TP721
TP723
TP725
Q801
TP659
R717
TP656
TP657
4
3
C715
C823
J703
PHONES
15 14
TP651
TP664
TP662
TP653
TP661
TP658
R718
C853
TP410
13
C849
TP204
TP601
D821
TP804
TP724
TP663
TP481
TP451
TP206
C821
C825
TP722
TP482
C852
L841
TP452
L851
TP727
0.4A DC60V
TP841
TP803
TP453
TP454
TP654
TP205
TP351
TP483
C851
L821
TP772
TP728
F841
D851
C828
TP729
C837
D822
TP771
C841
TP455
5
TP486
IC771
R850
TP459
TP456
TP458
IC873
1
TP488
IC851
C862
D823
C773
C774
C850
C863
1
3
TP500
R832
R853
R854
C839
R855
R856
C856
R857
R825
R826
C844
D841
4
IC871
R831
IC842
4
5
C847
C846
113
5
TP809
CK225
55606570
C843
4
IC852
5
1
C860
8
IC201
5101520
R206
TP114
TP104
C205
TP113
TP109
TP103
TP207
TP106
TP102
TP412
C209
TP144
TP121
R205
CK901
TP110
TP122
9 2
R871
C876
TP416
TP130
TP108
TP107
1
4
3
D842
D832
TP415
51
45
40
35
30
25
TP131
TP133
TP115
TP105
TP101
CK224
50
26
TP132
3
SW401
EJECT
R841
R844
C832
IC255
TP203
TP417
TP200
R422
C834
D831
1
12
TP100
TP111
TP112
R405
C848
C845
CK222
2
5
8
5
10
TP409
TP406
C201
R406
TP401
TP402
14
TP212
IC202
C833
C835
C838
C251
TP441
TP408
TP171
TP118
R833
C202
L202
20
15
TP411
1
24
13
TP418
TP407
12
G
: Through-hole where the top, bottom and +B patterns are connected.
: Through-hole where the top, bottom and ground patterns are connected.
H
: Through-hole where the top and bottom patterns are connected.
• The numbers 1 to 18 are waveform numbers shown in page 37.
1
23456
Figure 34 WIRING SIDE OF P.W.BOARD (1/3)
– 34 –
MD-MT80W/90W/90/90C
3
16
17
SW403
LID OPEN
IC260
R251
4
IC402
TP411A
IC203
1
85
R464
4
1
L171
R256
R279
C206
CK206
R413
1
4
IC259
4
R277
6
R269
R414
R416
R411
R412
C454
3
2
C100
C172
C171
2
R267
R415
L100
1
C131
R161
3
1
R266
1
25
CK102
C130
C109
CK108
C165
R254
C253
BATTERY
TERMINAL
R283
R257
D251
C254
TP405
30
R139
25
36
C110
1
R284
CK205
95
C108
24
37
R250
C133
1
3
C252
30
35
CK204
90
35
R140
40
R112
IC258
6
4
Q257
R287
R288
R252
C401
IC401
40
IC101
CN101
85
R138
R271
45
C107
C113
C106
151320
3
R137
1
R270
R424
R253
R255
Q251
C259
R261
R262
100
5
10
15
20
26
C132
6
45
10
5
R285
IC253
D281
4
C255
80
R425
R135
48
CK111
C112
4
C291
IC256
12
1
C111
R281
4
6
1
R136
C103
3
1
R423
76
70
65
60
55
R133
50
C102
R286
R272
R104
R102
R134
22
2
R296
R402
75
51
R111
R282
4
3
6
IC257
R291
R292
CK207
CK210
DC 1.2V (NICKEL-METAL HYDRIDE )
DC 1.5V LR6(SIZE AA)
R295
R294
85
3
IC892
1
IC251
R293
4
1
R466
Q250
D467
R463
D461
XL401
R461
R404
IC431
2
CK208
3
R431
D431
C124
C123
R103
C122
C121
R101
R131
R132
CK112
C114
TP139
CK114
CK113
R601
TP201A
16
15
IC501
1
R818
C506
C505
BATTERY
TERMINAL
4
6
R819
1
C818
IC809
13
R454
R467
R453
R465
1
R403
4
C431
L608
CK209
C622
1
5
12
L603
C603
9
10
CK203
5
8
C511
9
C608
48
13
C762
R462
3
R452
10
L604
C604
CK202
C761
CN451
R451
CN482
C482
C610
L610
45
15
C753
R457
13
24
C765
C492
Q461
R456
C609
40
IC601
20
L602
C602
15
20
R455
1
L609
R765
R460
1
R458
C481
37
35
30
24
L601
C601
IC703
C906
R922
36
25
C361
CK201
C907
C612
R767
D495
D496
C611
C905
D852
R816
Q803
R361
C354
C908
12
13
10
8
R815
R921
8
IC353
1
C353
C911
10
15 20
C904
R906
R758
12
5
C754
1
L454
R814
IC901
C903
R852
R757
R762
R766
4
L452
2
5
4
R908
14
1
C902
IC354
5
1
5
R351
C910
5
C760
R761
D492
C491
C351
D351
C901
C771
R754
D494
C912
C502
3
4
3
R768
CN601
14
2
1
C913
1
R904
24
R905
L453
3
1
Q901
L771
R502
C501
C758
C766
L710
R492
10
IC351
5
C357
R920
R715
R903
R902
R901
C914
C510
R501
L491
1
R716
L456
C869
12
R701
13
R702
657
8
7
Q711
C509
15
IC802
3
46
C652
R600
2
6
R727
R728
L862
IC701
C704
2
1
R712
C712
C651
C731
20
1
L702
510
C701
R720
R812
D802
R808
L800
R813
3
C702
L703
L714
R719
L712
L713
L801
1
10
24
R802
1
C714
C711
C703
Q891
R803
R810
D801
IC651
C713
R714
L704
34
R711
C733
C734
R730
R703
L711
R713
R723
D803
R724
12
13
54
R729
C716
6
5
C723
R806
C724
J801
DC IN
5V
J701
OPTICAL
LINE IN
J702
MIC IN
MD-MT90/90C
R431
55
50
R136
7
D431
R103
R207
C221
L204
C124
51
R104
8 9 10 11 12
6
C431
C622
578
R767,R768
4.7 ohms, RESISTOR : MT80W/90W
0 ohms, JUMPER : MT90/90C
Figure 35 WIRING SIDE OF P.W.BOARD (2/3)
– 35 –
J703
PHONES
MD-MT80W/90W/90/90C
OPTICAL PICKUP UNIT(17)
M902
SLED MOTOR
A
TO MAIN PWB
P35 10,11-C
CN601
MAGNETIC HEAD Ass'y(16)
B
C
M901
SPINDLE MOTOR
MECHANISM
FLEXIBLE
PWB Ass'y (15)
CN101
P35 8,9-F
D
TO MAIN PWB
PH901
PHOTO
INTERRUPTER
(15-2)
E
LIFT MOTOR
TO MAIN PWB
P35 9,10-C
CN451
TO MAIN PWB
P35 9,10-D
CN482
M903
F
G
PLAY
/PUSE
BASS
DISP
H
LCD UNIT Ass'y (222)
EDIT
MODE
/CHRG
REC
–
+
VOL
ENTER
/SYNC
:OFF
/HOLD
KEY SWITCH FLEXIBLE PWB Ass'y (221)
1
23456
Figure 36 WIRING SIDE OF P.W.BOARD (3/3)
– 36 –
MD-MT80W/90W/90/90C
WAVEFORMS OF MD CIRCUIT
CH2=500mV
DC 10:1
CH1 : 0.00V
CH2 : 0.000V
CH3 : 0.00V
CH4 : 0.00V
T
CH3=5V
DC 10:1
Main : 10K
Zoom : 10K
1994 / 12 / 15 22:54:19
CH4=2V
50ms/div
DC 10:1 (50ms/div)
NORM:200kS / s
=Trigger=
Mode : NORMAL
Type : EDGE CH4
Detay : 0.0ns
Hold OFF : MINIMUM
12
10
11
Stopped
CH1=1mV
DC 10:1
TP208
1
(FEMON)
1
TP101
2
(F+)
2
3
CK205
3
(SENSE)
CK204
T
4
(FOK)
4
=Filter= =Offset= =Record Length=
Smoothiing : OFF
BW : FULL
Stopped
CH1=2V
DC 10:1
IC501
9
(SDTi)
1
IC501
(SCLK)
2
T
IC501
(LRCK)
3
IC501
(MCLK)
4
=Filter= =Offset= =Record Length=
Smoothiing : OFF
BW : FULL
CH2=2V
DC 10:1
CH1 : 0.00V
CH2 : 0.00V
CH3 : 0.00V
CH4 : 0.00V
T
CH3=2V
DC 10:1
Main : 5K
Zoom : 5K
1994 / 12 / 16 00:24:17
CH4=2V
50us/div
DC 10:1 (50us/div)
NORM:100MS / s
=Trigger=
Mode : AUTO
Type : EDGE CH3
Detay : 0.0ns
Hold OFF : MINIMUM
10
11
9
Stopped
CH1=1V
TP201
(EFMMON)
1
TP210
(TEMON)
T
2
TP209
(TOTMON)
=Filter= =Offset= =Record Length=
Smoothiing : OFF
BW : FULL
DC 10:1
T
CH2=2V
DC 10:1
CH1 : 0.00V
CH2 : 0.00V
CH3 : 0.000V
CH4 : 0.00V
CH3=500mV
DC 10:1 (2ms/div)
Main : 10K
Zoom : 10K
1994 / 12 / 16 01:03:40
2ms/div
=Trigger=
Mode : NORMAL
Type : EDGE CH2
Detay : 0.0ns
Hold OFF : MINIMUM
ENV
10
11
16
17
Stopped
CH1=2V
DC 10:1 (50ms/div)
T
IC201
12
(SPDRR)
1
TP601
2
13
(VM)
=Filter= =Offset= =Record Length=
Smoothiing : OFF
BW : FULL
Stopped
CH1=2V
DC 10:1 (2ms/div)
TP201
9
(EFMMON)
2
T
TP210
(TEMON)
1
TP209
(TOTMON)
=Filter= =Offset= =Record Length=
Smoothiing : OFF
BW : FULL
Stopped
CH1=500mV
DC 10:1 (20us/div)
T
CK108
(HPFO)
1
IC101
(WBO)
2
=Filter= =Offset= =Record Length=
Smoothiing : OFF
BW : FULL
CH2=2V
DC 10:1
CH1 : 0.00V
CH2 : 0.00V
CH3 : 0.00V
CH4 : 0.00V
CH2=2V
DC 10:1
CH1 : 0.00V
CH2 : 0.00V
CH3 : 0.000V
CH4 : 0.0V
CH2=2V
DC 10:1
CH1 : 0.000V
CH2 : 0.00V
CH3 : 0.000V
CH4 : 0.0V
T
T
Main : 10K
Zoom : 10K
CH3=500mV
DC 10:1
Main : 10K
Zoom : 10K
Main : 4K
Zoom : 4K
1994 / 12 / 15 23:31:21
50ms/div
=Trigger=
Mode : NORMAL
Type : EDGE CH1
Detay : 0.0ns
Hold OFF : MINIMUM
1994 / 12 / 15 08:57:26
2ms/div
=Trigger=
Mode : NORMAL
Type : EDGE CH1
Detay : 0.0ns
Hold OFF : MINIMUM
1994 / 12 / 15 09:10:03
20us/div
ENV
=Trigger=
Mode : NORMAL
Type : EDGE CH1
Detay : 0.0ns
Hold OFF : MINIMUM
Stopped
CH2=2V
CH1=2V
ENV
1
10
14
15
ENV
1
10
12
13
9
10
18
DC 10:1
TP208
(FEMON)
1
T
TP210
(TEMON)
2
TP663
3
(SL+)
TP664
4
(SL-)
BandwidthONSmooth
FULL 20MHz
=Filter= =Offset= =Record Length=
Smoothiing : OFF
CH1 : 0.00V
BW : FULL
CH2 : 0.00V
CH3 : 0.00V
CH4 : 0.00V
Stopped
CH1=2V
DC 10:1
T
TP208
1
(FEMON)
TP210
2
(TEMON
)
3
SPDRR
TP601
4
(VM)
=Filter= =Offset= =Record Length=
Smoothiing : OFF
CH1 : 0.00V
BW : FULL
CH2 : 0.00V
CH3 : 0.00V
CH4 : 0.00V
Stopped
CH1=2V
DC 10:1
TP201
(EFMMON)
1
TP210
T
(TEMON)
2
3
TP102
4
(T-)
=Filter= =Offset= =Record Length=
Smoothiing : OFF
CH1 : 0.00V
BW : FULL
CH2 : 0.00V
CH3 : 0.00V
CH4 : 0.00V
DC 10:1
CH2=2V
DC 10:1
CH2=2V
DC 10:1
CH3=2V
DC 10:1
OFF
Main : 10K
Zoom : 10K
CH3=2V
DC 10:1
Main : 10K
Zoom : 10K
CH3=1V
DC 10:1
Main : 10K
Zoom : 10K
T
1994 / 12 / 18 09:26:46
CH4=2V
DC 10:1 (1s/div)
=Trigger=
Mode : AUTO
Type : EDGE CH2
Detay : 0.0ns
Hold OFF : MINIMUM
1994 / 12 / 15 09:58:45
CH4=2V
1s/div
DC 10:1 (1s/div)
=Trigger=
Mode : AUTO
Type : EDGE CH1
Detay : 0.0ns
Hold OFF : MINIMUM
1994 / 12 / 15 21:54:52
CH4=1V
500us/div
DC 10:1 (500us/div)
=Trigger=
Mode : NORMAL
Type : EDGE CH2
Detay : 0.0ns
Hold OFF : MINIMUM
1s/div
ENV
9
ENV
10
14
15
ENV
Stopped
CH1=2V
DC 10:1 (500ms/div)
TP201
T
(EFMMON)
1
=Tracel= P-P 1.280V
=Filter=
=Offset= =Record Length=
CH1 : 0.000V
CH2 : 0.00V
CH3 : 0.00V
CH4 : 0.00V
Stopped
CH1=2V
DC 10:1
=Filter= =Offset= =Record Length=
CH2=2V
DC 10:1
CH1 : 0.00V
CH2 : 0.00V
CH3 : 0.00V
CH4 : 0.0V
CH3=2V
TP210
(TEMON)
TP663
(SL+)
TP664
(SL-)
Smoothiing : OFF
BW : FULL
T
1
2
3
Smoothiing : OFF
BW : FULL
DC 10:1 (1s/div)
Main : 1K
Zoom : 1K
Main : 10K
Zoom : 10K
1994 / 12 / 16 01:23:16
500ms/div
MORM:200MS/s
=Trigger=
Mode : AUTO
Type : EDGE CH1
Detay : 0.0ns
Hold OFF : MINIMUM
1994 / 12 / 15 08:39:46
1s/div
NORM:1kS/s
=Trigger=
Mode : AUTO
Type : EDGE CH1
Detay : 0.0ns
Hold OFF : MINIMUM
For TP208, TP209, and TP210, use the specific LPF, and
observe the waveform.
10K
Measurement
TP
0.001
When watching the EEM monitor (TP201)
Set MSL from 00
completion restore 00
H to 80H with EEPROM control setting. After
H.
– 37 –
MD-MT80W/90W/90/90C
IC101
PIN
NO.
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
PIN
NO.
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
PIN
NO.
1
2
3
1
2
3
4
5
6
7
8
9
1
2
3
4
5
6
7
8
9
IC202
IC203
VOLTAGE
0V
0V
0V
0V
1.27V
1.27V
1.27V
1.27V
1.27V
1.27V
1.27V
1.27V
1.27V
1.27V
1.27V
1.27V
1.27V
1.27V
1.27V
1.27V
1.27V
1.27V
1.27V
0V
0V
0V
0V
2.52V
0V
2.3V
0V
1.27V
0V
0V
1.27V
1.27V
0V
1.29V
0V
2.52V
1.51V
0V
1.27V
0V
0V
1.27V
0V
0V
VOLTAGE
2.3V
1.6V
1.2V
2.2V
1.6V
0V
0.9V
1.3V
0.5V
0.5V
0.5V
2.3V
0V
0.5V
0.8V
0.7V
0.8V
0.8V
0.9V
1.67V
0.8V
1.5V
1.5V
0V
VOLTAGE
4.91V
4.58V
2.35V
PIN
NO.
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
PIN
NO.
1
2
3
4
5
6
7
8
PIN
NO.
1
2
3
4
5
6
PIN
NO.
PIN
NO.
1
2
3
4
5
6
1
2
3
4
5
6
7
8
9
1
2
3
4
5
6
7
8
IC251
IC253
IC255
IC256
VOLTAGE
0V
0V
1.29V
0V
2V
0V
0V
1.6V
0V
1.27V
1.27V
1.27V
1.24V
0V
0V
0V
0V
0V
0V
0V
0V
0V
0V
0V
0V
-
-
-
-
-
2.53V
-
-
-
-
-
1.81V
0V
-
-
-
-
-
-
-
-
-
2.42V
1.92V
1.15V
VOLTAGE
2.08V
0V
0V
0V
0V
2.08V
2.08V
2.08V
VOLTAGE
5.36V
5.31V
5.31V
0V
0V
0V
VOLTAGE
-1.11V
0V
0V
-2.19V
0V
0V
-1.59V
0V
VOLTAGE
0V
0.44V
0.44V
0V
0V
0V
IC201
PIN
NO.
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
PIN
NO.
PIN
NO.
PIN
NO.
PIN
NO.
VOLTAGE
1.26V
0V
0V
0V
2.53V
0V
0V
0V
0V
0V
0.94V
1.51V
0V
0V
0.68V
2.73V
1.27V
0.67V
0V
1.27V
0V
2.53V
0V
0V
1.25V
1.25V
1.25V
0V
0V
0V
0V
2.53V
0V
2.53V
1.27V
0V
2.53V
0V
0V
0.68V
0.27V
0.63V
0.22V
0.39V
0.68V
0.75V
2.25V
2.36V
0.24V
0.24V
IC257
VOLTAGE
1
2
3
4
IC258
VOLTAGE
1
2
3
4
5
6
IC259
VOLTAGE
1
2
3
4
5
6
IC260
VOLTAGE
1
2
3
4
5
6
0V
0V
0V
0V
0V
0.59V
4.89V
0V
0V
0V
0V
0.55V
0.55V
0V
0.55V
0V
2.73V
2.71V
2.71V
0V
0V
1.37V
VOLTAGE
VOLTAGE
0V
0V
0V
2.34V
0.25V
2.36V
0V
0.25V
0V
0V
2.12V
2.02V
2.24V
2.36V
2.36V
0.44V
2.36V
0V
0V
0.24V
2.26V
2.26V
0.12V
0.27V
0.56V
0.12V
0.26V
0.55V
0.6V
0.27V
0V
0V
0V
2.15V
2.72V
2.36V
2.36V
2.36V
2.36V
2.36V
0V
2.36V
2.36V
0V
0V
0V
0V
0V
0V
0V
IC351
VOLTAGE
0V
0V
4.42V
0V
0V
4.42V
0V
1.15V
4.22V
0V
1.15V
4.43V
0V
4.47V
IC353
VOLTAGE
2.74V
0.44V
0.36V
0V
0V
0.42V
0.38V
2.74V
IC354
VOLTAGE
0V
0V
0V
0.46V
0.36V
IC401
PIN
NO.
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
PIN
NO.
10
11
12
13
14
PIN
NO.
1
2
3
4
5
6
7
8
PIN
NO.
1
2
3
4
5
1
2
3
4
5
6
7
8
9
1
2
3
4
5
6
7
8
9
PIN
NO.
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
PIN
NO.
PIN
NO.
PIN
NO.
10
11
12
13
14
15
16
1
2
3
4
5
6
7
8
1
2
3
4
1
2
3
4
5
6
7
8
9
VOLTAGE
0.85V
0V
0V
2.5V
0V
0V
2.36V
2.36V
0V
2.36V
2.35V
2.27V
2.35V
2.35V
2.35V
1.02V
1.13V
0V
2.33V
2.33V
2.30V
0V
2.53V
2.31V
2.34V
0.15V
2.35V
2.35V
0V
0.88V
1.48V
2.14V
2.35V
2.35V
0V
0V
0V
0V
0V
0V
0V
2.35V
0V
0V
2.35V
-
2.35V
2.35V
2.35V
2.35V
IC402
VOLTAGE
0V
2.36V
0V
0V
2.36V
0V
2.36V
2.36V
IC431
VOLTAGE
2.35V
2.36V
0V
0V
IC501
VOLTAGE
0V
-
0V
2.29V
0V
0V
0V
0V
1.26V
0V
1.26V
0V
0V
-
-
PIN
NO.
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
PIN
NO.
1
2
4
5
6
7
PIN
NO.
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
1
2
3
4
5
6
7
8
9
3
8
1
2
3
4
5
6
7
8
9
IC601
IC651
IC701
VOLTAGE
2.34V
0V
0V
0V
0V
7.85V
2.67V
0V
0V
0V
0V
0V
0V
0V
0V
0V
2.79V
0V
0V
0V
2.79V
0V
0V
0V
0V
0V
2.7V
2.34V
0V
2.67V
1.32V
3.94V
1.32V
6.55V
0V
0V
0V
0V
0V
2.79V
0V
0V
0V
0V
0V
0V
0V
0V
VOLTAGE
2.74V
0V
0V
0V
0V
0V
0V
0V
VOLTAGE
0V
0V
0V
0V
0V
0V
0V
0V
0V
0V
0V
0V
0V
0V
0V
0V
0V
0V
0V
0.88V
0V
0V
0V
PIN
NO.
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
PIN
NO.
1
2
3
4
5
PIN
NO.
1
2
3
PIN
NO.
1
2
4
5
6
PIN
NO.
1
2
3
4
PIN
NO.
1
2
4
5
6
PIN
NO.
S
G
PIN
NO.
PIN
NO.
1
2
4
5
1
2
3
4
5
6
7
8
9
3
3
D
1
2
3
4
5
6
7
8
3
IC703
IC771
IC801
IC802
IC803
IC809
IC821
IC822
IC841
VOLTAGE
0V
0V
0V
0V
0V
2.53V
-2.3V
0V
2.53V
0V
1.27V
0V
2.36V
0V
0V
2.53V
0V
-2.3V
-2.3V
0V
0V
0V
0V
0V
VOLTAGE
0V
2.74V
2.74V
0V
2.29V
VOLTAGE
0V
4.58V
2.0V
VOLTAGE
0.46V
1.05V
3.53V
0.46V
1V
4.52V
VOLTAGE
4.53V
4.58V
0V
0V
VOLTAGE
5.35V
0V
0V
0V
2.35V
5.35V
VOLTAGE
0V
0.33V
2.1V
VOLTAGE
1.18V
2.81V
0.39V
0V
1.17V
1.19V
1.17V
1.27V
VOLTAGE
0V
2.81V
0V
2.06V
0V
PIN
NO.
1
2
3
4
5
PIN
NO.
S
G
D
PIN
NO.
1
2
3
4
5
6
7
8
PIN
NO.
1
2
3
4
5
PIN
NO.
1
2
3
4
5
PIN
NO.
1
2
3
4
5
6
PIN
NO.
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
1
2
3
4
5
6
7
8
9
IC842
IC851
IC852
IC871
IC873
IC892
IC901
VOLTAGE
0V
2.81V
0V
0V
2.36V
VOLTAGE
0V
0.2V
2.1V
VOLTAGE
1.18V
2.81V
0.27V
0V
1.13V
1.23V
1.17V
1.27V
VOLTAGE
0V
2.36V
0V
1.18V
2.36V
VOLTAGE
2.36V
6.46V
0V
4.47V
0V
VOLTAGE
0V
0.6V
1.77V
0V
0V
0V
VOLTAGE
-
-
2.34V
0V
2.52V
0V
2.52V
-
0.48V
0.67V
0.64V
0V
0V
0.77V
0V
0V
-
-
-
-
0.57V
0V
0V
– 38 –
MD-MT80W/90W/90/90C
TROUBLESHOOTING
It is advisable to use the TEST mode (refer to Error Data Display Mode, P18) indicating the causes of troubles before
starting repair. Causes of operation errors (up to 16 errors) are recorded as error codes. This information is useful
for repair.
When MD playback does not function
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 lens cleaner on the market.
Do not touch the lens with the bare hand.
Is the power supply turned on when the remote control
button (90W/90/90C) or main unit button is pressed?
Yes
Does the display operate normally?
Yes
Is playback state set?
Yes
Is audio output normal?
Yes
Is recording/playback operation normal?
• Power is not turned on when the /
(90W/90/90C)
button is pressed.
Is power turned on when the remote control button
(90W/90/90C) is pressed?
No
No
No
No
No
No
Perform the check stated in item "Power is not turned on
when the PLAY button is pressed".
Perform the check stated in item "Abnormal display".
Perform the check stated in item "Playback state cannot be
set".
Perform the check stated in item "Audio playback circuit".
Perform the check stated in item "Recording/playback
operation".
• If "HOLD" appears, press and hold down STOP on
the main unit and cancel the HOLD mode.
Is operation normal when the main unit button is pressed?
No
Does the pin 66 of IC401 oscillate? Replace XL401.
Yes
No
– 39 –
Check the periphery of remote controller (90W/90/90C) and
main unit headphones terminal (J703) and IC401.
MD-MT80W/90W/90/90C
• Abnormal display
Is waveform output from CN482 pins 6 to 8?
Are the pin 4 (VCC) and pin 5 (GND) normal?
Yes
Check for pattern breakage of flexible PWB, check for
defects of display microcomputer (replace the display unit).
No
Is waveform output from IC401 pins 9,11,13?
Yes
Check between IC401 and
CN482.
• Playback state cannot be set
When it has been ascertained that the address up to cluster address is normal in the TEST mode.
Is initialization performed normally in case of high- reflection
disc playback?
No
Is the lead-in photointerrupter set to OFF when the optical
pickup moves to the innermost periphery in NORMAL mode?
(Is TP654 in H level?).
Yes
Yes
No
Does the playback time display advance?
Check IC201 and IC202 connection line.
Check the lead-in photointerrupter, mechanical flex
PWB soldering and CN601 connection.
No
Check the periphery of IC401.
No
Is an attempt to repeat repeatedly the TOC part performed
on the low-reflection disc?
Yes
Position check in INNER mode
No
Replace the disc.
• Audio playback circuit
Although the playback time display is acting., no sound is given during playback in the normal mode.
Is audio waveform output from IC501 pins 15 and 16?
Yes
Is audio waveform output from IC703 pins 8 and 17.
Yes
Is audio waveform output from J703 pins 3 and 4.
Yes
Check headphones jack, and periphery of headphone.
No
No
No
Check IC201 pins 70 to 72, pin 74 and IC501 pins 9, 10, 11,
12.
Check the pins 4 and 21 of IC703.
Check whether there is defective solder joint of audio signal
line between IC703 and J703
– 40 –
• The spindle motor fails to run. Does the head move
MD-MT80W/90W/90/90C
Does the waveform appear on the IC201 pins 24 and 25 after
TEST mode AUTO2 completion and in this state?
Yes
Does waveform appear on the IC601 pin 43?
Yes
Does waveform appear on IC901 pins 1, 2 and 23?
Yes
Replace the spindle motor.
No
No
No
Check the IC201 periphery.
Replace. IC601
L608, IC201, IC901, CN601 and flex, etc. soldering check
• Recording/playback operation
Insert a low reflection disc, and ascertain audio output by normal playback, and then set TEST REC mode.
Does the head move down, failing to start record even
when the continuous record mode is set after address?
No
Does the RF waveform appear at TP201 (When monitoring
the RF waveform, set to MSL:80H using the control setting
item of EEPROM) when recording/Playback is performed
No
Yes
Yes
Check voltage of pins 52 and 53 of IC201, pins 3, 4, 7, and 9 of
IC651, pins 1 and 2 of CN601. Check whether disc is recordinhibited.
Does level of pins 86 of IC401 and pin 17 of IC101 change
depending on record and playback?
Yes
Is RF pattern output from IC201 pin 50?
Yes
Check whether there is any damage in IC101, periphery of
laser diode.
Check for defects of IC351 in head drive flexible PWB,
head, flexible PWB.
Is audio monitor output given in normal mode LINE IN
record?
No
Is waveform obtained on IC501 pins 2 and 3?
No
Is audio waveform observed on the pins 8 and 17 of IC703?
Yes
No
No
Yes
Yes
No
Check periphery of IC401 and IC101.
Check for soldering failure of IC201 .
Check waveforms of pins 8,10,11,12 of IC501, pins 70 to 73 of
IC201.
Check whether the pin 13 of IC501 and the pin 59 of IC201 are
in H state.
Does voltage on the IC701 pins 13 to 15 change in case of
record VOLUME UP/DOWN?
Check whether input waveform is observed on the pins 4
and 21 of IC703.
– 41 –
MD-MT80W/90W/90/90C
FUNCTION TABLE OF IC
IC401 RH-iX0409AWZZ :System Microcomputer (IX0409AW) (1/2)
Pin No.
1 P12/TCLKA CIN Input Track cross signal/focus drive detection
2 TCLKB SPIN Input Spindle motor FG pulse detection input
3* P14 REPCNT Input RF control
4 P15 DISCPR Input Disc record inhibition switch input
5* TIOCA2 SPWDS Input Spindle motor FG pulse width detection
6 P17 LCDRST Output Unit LCD driver reset 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 P32 Input Reserve
11 P33 DSPSTB Output Main unit display strobe output
12* SCK0 SCK0 Output Serial I/O 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 EPRT Output EEPROM write protection
18 Vss VSS — Ground potential
19* PE4 PE4 Output Reserve
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 RCLAT 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 Input/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 Input Positive power supply
41 PB0 OPICGA Output P.U detection sensitivity switching output
42 PB1 PBOPON Output Audio IC output stage control output
43 PB2 PBLAT Output Audio IC data latch output
44 PB3 LDON Output P.U. laser ON/OFF control output
45 PB4 DISCP Output RF amp TE polarity switching output
46 PB5 SGAIN Output RF amp gain polarity switching output
47 PB6 RACLK Output Audio IC data clock output
48 PB7 RADAT Output Audio IC serial data output
49 Vss VSS — Ground potential
50* PA0 PAD0 Output Reserve
51* PA1 _ELONL Output EL lighting control output
52* PA2 PA2 Output Reserve
53 PA3 PDCNT Output Inner detection PD current control output
54 P20 INNSW Input Mechanism inner SW position detection input
55 P21 EMPHO Output Audio emphasis control output 0
56 TIOCC3 BUZOUT Output Beep sound pulse output
57 MD0 MD0 Input Operation mode selection input 0
Port Name
Terminal Name Input/Output
In this unit, the terminal with asterisk mark (*) is open terminal which is not connected to the outside.
Function
– 42 –
MD-MT80W/90W/90/90C
IC401 RH-iX0409AWZZ :System Microcomputer (IX0409AW) (2/2)
Pin No.
58 MD1 MD1 Input Operation mode selection input 1
59 P23 DCEXT Input DC-IN detection (level)
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 input (not used)
64 STBY _STBY Input Microcomputer standby input (not used)
65 Vcc VCC Input Positive power supply
66 XTAL XTAL — Crystal connection terminal
67 EXTAL EXTAL — Crystal connection terminal
68 Vss VSS — Ground potential
69 PF7 _PLAY Input Unit PLAY button operation detection input
70 PF6 _REC Input Unit REC button operation detection input
71 PF5 _STOP Input Unit STOP button operation detection input
72* PF4 PF4 Output Reserve
73 PF3 _DINT Input System LSI interruption
74 PF2 ARQD Input Disk cap opens and closes detection/it is started and required
75 PF1 _RPLAY Input Remote control PLAY key operation detection input
76 IRQ0 _ARQK Input Start request by the key /DC-IN input
77 AVcc AVCC Input A/D and D/A converter positive power supply
78 Vref VREF — A/D and D/A converter reference voltage
79 AN0 PLVBAT Input Battery voltage detection input
80 AN1 ANI1 Input Reserve
81 AN2 TEMP Input Ambient temperature 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 CHGCNT Output Charging current control output
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 CHGON Output Battery charge ON/OFF control output
90* TIOCB4 MCMON Output Internal operation status monitor
91 P26 PLVON Output Battery power supply line ON/OFF
92 P27 DCNT1 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 standby operation monitor output
97 PG4 _EJSW Input Ejection lever operation detection input
98 Vcc VDD Input Positive power supply
99 P10 PCNT2 Output Servo DC-DC converter ON/OFF control
100 P11 PCNT1 Output Main DC-DC converter ON/OFF control
Port Name
Terminal Name Input/Output
In this unit, the terminal with asterisk mark (*) is open terminal which is not connected to the outside.
Function
– 43 –
MD-MT80W/90W/90/90C
IC201 VHiLR37815+-1 :Endec/Servo/Atrac (LR37815)
System LSI expansion output port (LR37815)
Pin No.
56 EXPORT0 LEDON1 Output LED ON/OFF 'H':ON"L":OFF
57 EXPORT1 LDCNT1 Output Recording head raising-lowering control output 1 See the separate table *3.
58 EXPORT2 LDCNT2 Output Recording head raising-lowering control output 2 (Open)
59 EXPORT3 EMPH1 Output Audio emphasis control output 1 See the separate table *2.
78 EXPORT4 HDON Output Not used. 'H': Record electric current
79 EXPORT5 OPTCNT Output Optical digital input circuit control 'H': Circuit operation ON
80 EXPORT6 DAPON Output D/A converter operation control output 'H': Operation ON
81 EXPORT7 ADPON Output A/D converter operation control output 'H': Operation ON
Port Name
Terminal Name Input/Output
Function
Remarks
*1: List of TEST port settings
TEST1
TEST0
H H Normal mode
H L No adjustment mode
L H Test mode
L L (Settings prohibited)
Details
*2: List of EMPH port settings
EMPH1 EMPH0
H H fs=32K: 'ON'
H L fs=48K: 'ON'
L H OFF
L L fs=44.1K: 'ON'
IC201 VHiLR37815+-1 :Endec/Servo/Atrac (LR37815)
FEMON
DADATA
ADDATA
DFCK
BCLK
LRCK
DGND
PLLBVC
DOUT
DIN
X1O
X1I
DGND
VDD1
75747372717069686766656463626160595857565554535251
DCNT
FOK
VDD2
RSTX
SYD0
SYD1
SYD2
SYD3
SYD4
SYD5
SYD6
SYD7
SYRS
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
LR37815
TOTMON
TEMON
OPTCNT
DAPON
ADPON
SENSE
COUT
MCCK
DINTX
DGND
SYWRX
SYRDX
Details
VPO
VXI
EMPH
LDCNT2
LDCNT1NCDILOCK
*3: List of LDCNT port settings
LDCNT1
TEST1
TEST0
TCRS
LDCNT0
H H Brake
H L Drive UP
L H Drive DOWN
L L Output OFF
X700KO
50
49
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
Details
EFMO
PLCK
ACRCER
RAA11
RAD0
RAD1
RAWEX
RARASX
RAA9
RAD3
RAD2
RACASX
DGND
RAOEX
RAA8
RAA7
RAA6
RAA5
RAA4
VDD2
RAA10
RAA0
RAA1
RAA2
RAA3
12345678910111213141516171819202122232425
EFMI
AVCC
AGND
EFMMON
VREF
AVCC2
WBI
TCG
AIN
BIN
EIN
FIN
VBAT
– 44 –
VDD1
DGND
TEST2
X176KO
TRDRF
FODRF
FODRR
SLDRF
SLDRR
TRDRR
SPDRF
SPDRR
MD-MT80W/90W/90/90C
IC601 VHiLV8018W+-1 :PWM Driver (LV8018W) (1/2)
Pin No. Terminal Name Function
1 MUTE MUTE terminal at CH3. MUTE ON with "L".
2 IN3+ Input terminals on forward/reverse sides of CH3(digital input).
3* NC —
4* NC —
5* NC —
6 VG Applies the supply voltage of the pre-drive unit. When VGOFF="L", the voltage on the booster circuit is
7 VCC1 Applies the analog-signal supply voltage.
8 IN3– Input terminals on forward/reverse sides of CH3(digital input).
9NC —
10 NC —
11 NC —
12 MUTE1 MUTE terminal at CH1, 2, and 4. MUTE ON with "L".
13 IN1R Input terminals on the forward/reverse side of CH3(digital input).
14 IN1F Input terminals on the forward/reverse side of CH3(digital input).
15 PGND1 Power GND.
16 OUT1R Output terminal on the reverse side of CH1.
17 BAT1 Power supply in the output section of CH1.
18 OUT1F Output terminal on the forward side of CH1.
19 PGND2 Power GND.
20 OUT2R Output terminal on the reverse side of CH2.
21 BAT2 Power supply in the output section of CH2.
22 OUT2F Output terminal on the forward side of CH2.
23 PGND3 Power GND.
24 IN2F Input terminals on the forward/reverse side of CH2(digital input).
25 IN2R Input terminals on the forward/reverse side of CH2(digital input).
26* VBATT/2MON Power connection terminal in the output section that monitors the half of the power supply to the output
27 VBATT Power connection terminal in the output section.
28 S/S START/STOP terminal. Starting with "H" and stopping with "L".
29 GND Signal GND.
30 VCC2 Applies the logic-signal supply voltage.
31 CP1 Switching terminal on the booster circuit
32 CP2 Terminal to which the rectifying transistor on the booster circuit is connected.
33 CP3 Switching terminal on the booster circuit
34 CP4 Terminal to which the rectifying transistor on the booster circuit is connected.
35 VGOFF ON/OFF switching terminal on the booster circuit. Booster circuit ON with "L". Booster circuit OFF with "H".
36 IN4R Input terminals of the forward/reverse side of CH4(digital input).
37 IN4F Input terminals of the forward/reverse side of CH4(digital input).
38 PGND6 Power GND
39 OUT4F Output terminal on the forward side of CH4.
40 BAT4 Power supply in the output section of CH4.
41 OUT4R Output terminal on the reverse side of CH4.
42 PGND5 Power GND.
43 OUT3F Output terminal on the forward side of CH3.
44 BAT3 Power supply in the output section of CH3.
45* OUT3R Output terminal on the reverse side of CH3
46 PGND4 Power GND
47* NC —
48* NC —
In this unit, the terminal with asterisk mark (*) is open terminal which is not connected to the outside.
output to this terminal and it becomes the direct supply voltage of the pre-drive unit.
section. It monitors the output power with the digital servo to correct its dependency on the voltage.
– 45 –
MD-MT80W/90W/90/90C
IC601 VHiLV8018W+-1 :PWM Driver (LV8018W) (2/2)
PGND5
OUT3F
BAT3
OUT3R
PGND4
NC
NC
4748 46 45 44 43 42 41 40 39 38 37
BAT4
OUT4R
PGND6
OUT4F
IN4F
MUTE
IN3+
NC
NC
NC
VG
VCC1
IN3–
NC
NC
NC
MUTE1
1
2
3
4
5
6
7
LV8018W
8
9
10
11
12
13 14 15 16 17 18 19 20 21 22 23
IN1F
IN1R
OUT1R
PGND1
BAT1
OUT1F
PGND2
BAT2
OUT2R
24
OUT2F
PGND3
IN2F
36
35
34
33
32
31
30
29
28
27
26
25
IN4R
VGOFF
CP4
CP3
CP2
CP1
VCC2
GND
S/S
VBATT
VBATT/2MON
IN2R
IC202 RH-iX2735AFZZ: 16M Bit D-RAM (IX2735AF)
Pin No.
1 Vcc Power supply (2.6V)
2 I/O1 Data input/data output
3 I/O2 Data input/data output
4 WE Write enable
5 RAS Low address strobe
6* NC Not connected
7 A10 Address input
8-11 A0-A3 Address input
12 Vcc Power supply (2.6V)
13 GND Ground (0V)
14-19 A4-A9 Address input
20 OE Output enable
21 CAS Column address strobe
22 I/O3 Data input/data output
23 I/O4 Data input/data output
24 GND Ground (0V)
In this unit, the terminal with asterisk mark (*) is open terminal which is not connected to the outside.
Terminal Name
Function
– 46 –
PARTS GUIDE
PORTABLE MINIDISC RECORDER
MD-MT80W(S)
MD-MT90W(S)
MD-MT90(S)
MODEL MD-MT90C(S)
MD-MT80W/90W/90/90C
“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
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%.
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
Resistors
VRD ....................... Carbon-film type
VRS........................ Carbon-film type
VRN ....................... Metal-film type
VR • • MF ............... Cylindrical type (without lead wire)
VR • • MN............... Cylindrical type (without lead wire)
VR • • TV................ Square type (without lead wire)
VR • • TQ ............... Square type (without lead wire)
VR • • CY ............... Square type (without lead wire)
VR • • CZ ............... Square type (without lead wire)
VR • • • • • • • • • J .. The 13th character represents error.
("J" ±5%, "F" ±1%, "D" ±0.5%.)
If there are no indications for other parts, the resistors are ±5%
carbon-film type.
NOTE:
Parts marked with “ ” are important for maintaining the safety of the set.
Be sure to replace parts with specified ones for maintaining the safety and performance of the set.
MD-MT80W/90W/90/90C
NO.
PARTS CODE
PRICE
RANK
DESCRIPTION
INTEGRATED CIRCUITS
IC101 VHIIR3R58M/-1 J AM RF Signal Processor,IR3R58M
IC201 VHILR37815+-1 J BF Endec/Servo/Atrac,LR37815
IC202 RH-IX2735AFZZ J AX 16MBit D-RAM,IX2735AF
IC203 VHI62FP1602-1 J AF Regulator,62FP1602
IC251 VSFTD2017++-1 J AL N-ch MOS FET,FTD2017
IC253 VHIRN4904//-1 J AD Power Select Charge Drive,
IC255 VHINJM022V/-1 J AG Ope Amp.,NJM022V
IC256 VSRN4911+++-1 J AD Digital Transistor,RN4911
IC257 VHIS80808LN-1 J AE Reset,S80808LN
IC258,259 VHIHN1C01FU-1 J AD Power Transistor,HN1C01FU
IC260 VHIRN4904//-1 J AD Power Select Charge Drive,
IC351 VHI74ACT02T-1 J AE Head Driver,74ACT02T
IC353 VHIFTD2005/-1 J AG Head Driver,FTD2005
IC354 VHICPH5608/-1 J AH Head Driver,CPH5608
IC401 RH-IX0409AWZZ J System Microcomputer,
IC402 VHI58X2404T-1 J AF EEPROM,58X2404T
IC431 VHIS80820LN-1 J AD Reset,S80820LN
IC501 VHIAK4551VT-1 J AU AD/DA Converter,AK4551VT
IC601 VHILV8018W+-1 J AM PWM Driver,LV8018W
IC651 VHILB1930M/-1 J AH Motor Driver,LB1930M
IC701 VHIIR3R54N/-1 J AQ Audio Amp.,IR3R54N
IC703 VHIIR3R59N/-1 J AN Audio Amp.,IR3R59N
IC771 VHI62GR2322-1 J AF 2.3V Regulator,62GR2322
IC801 VHI62RP2002-1 J AF 2.0V Regulator,62RP2002
IC802 VHIHN1C01FU-1 J AD Power Transistor,HN1C01FU
IC803 VHIS80819LN-1 J AE Reset IC,S80819LN
IC809 VHIRN4904//-1 J AD Power Select Charge Drive,
IC821 VSCPH3413++-1 J AE N-ch MOS FET,CPH3413
IC822 VHIIR3M14N/-1 J AK DC/DC Converter,IR3M14N
IC841 VHI6372C281-1 J AH 2.8V UP Converter,6372C281
IC842 VHIXC62HS02-1 J AE Power Supply Microcomputer,
IC851 VSCPH3413++-1 J AE N-ch MOS FET,CPH3413
IC852 VHIIR3M14N/-1 J AK DC/DC Converter,IR3M14N
IC871 VHITC7S86FU-1 J AE Exclusive or Gate,TC7S86FU
IC873 VHI62GR4522-1 J AG 4.5V Regulator,62GR4522
IC892 VHIHN1C01FU-1 J AD Power Transistor,HN1C01FU
IC901 VHILB1971V+-1 J AR Spindle Motor Driver,LB1971V
RN4904
RN4904
IX0409AW
RN4904
XC62HS02
TRANSISTORS
Q250 VS2SA17457/-1 J AB Silicon,PNP,2SA17457
Q251 VS2SD1819AS-1 J AC Silicon,NPN,2SD1819 AS
Q257 VS2SA1832GR-1 J AC Silicon,PNP,2SA1832 GR
Q461 VS2SD1819AS-1 J AC Silicon,NPN,2SD1819 AS
Q711 VSRN1444A//-1 J AC Digital,NPN,RN1444 A
Q721 VS2SD1979S+-1 J AC Silicon,NPN,2SD1979 S
Q801 VS2SJ520TL+-1 J AM FET,2SJ520 TL (P-ch)
Q803 VSUN5213+++-1 J AC Digital,NPN,UN5213
Q891 VS2SA1873GR-1 J AC Silicon,PNP,2SA1873 GR
Q901 VSUN5210+++-1 J AC Digital,NPN,UN5210
DIODES
D251 VHD1SS400//-1 J AB Silicon,1SS400
D281 VHD1SS400//-1 J AB Silicon,1SS400
D351 VHDSBE803//-1 J AD Silicon,SBE803
D431 VHD1SS361//-1 J AB Silicon,1SS361
D461 VHDRB731U//-1 J AC Silicon,RB731U
D467 VHDRB521S30-1 J AC Silicon,RB521S30
D492 VHEMA8075M/-1 J AC Zener,MA8075M
D494~496 VHEMA8075M/-1 J AC Zener,MA8075M
D651 VHDF10J2E//-1 J AC Silicon,F10J2E
D801 VHDF05J2L//-1 J AC Silicon,F05J2L
D802 VHEMA8051M/-1 J AC Zener,MA8051M
D803 VHDRB520S30-1 J AC Schottky,RB520S30
D821 VHDD1FH3+++-1 J AE Schottky,D1FH3
D822,823 VHDF10J2E//-1 J AC Silicon,F10J2E
D831,832 VHDHRB0103B-1 J AC Silicon,HRB0103B
D841 VHDF10J2E//-1 J AC Silicon,F10J2E
D842 VHDHRB0103B-1 J AC Silicon,HRB0103B
D851 VHDD1FH3+++-1 J AE Schottky,D1FH3
D852 VHDF10J2E//-1 J AC Silicon,F10J2E
D861,862 VHDF10J2E//-1 J AC Silicon,F10J2E
PH901(15-2) VHPRPI221++-1 J Photo Interupter,RPI221
(Supplies at Ref No.15)
NO. PARTS CODE
PRICE
RANK
DESCRIPTION
COILS
L100 VPBNN100K0000 J AC 10 µH
L171 RCILC0356AFZZ J AC 10 µH
L204 RCILC0353AFZZ J AB Tip Solid Induction,100 mA
L452 RCILC0352AFZZ J AB Tip Impeder,150 mA
L453,454 RCILC0353AFZZ J AB Tip Solid Induction,100 mA
L456 RCILC0353AFZZ J AB Tip Solid Induction,100 mA
L601~604 RCILC0358AFZZ J AC 47 µH,Choke
L608 RCILC0356AFZZ J AC 10 µH
L609,610 RCILC0358AFZZ J AC 47 µH,Choke
L702~704 RCILC0353AFZZ J AB Tip Solid Induction,100 mA
L711~714 RCILC0353AFZZ J AB Tip Solid Induction,100 mA
L771 RCILC0359AFZZ J AC 100 µH,Choke
L800,801 RCILZ0027AWZZ J AD 100 MHz,Tip Impeder
L821 RCILC0005AWZZ J AF 10 µH,Choke
L841 RCILC0356AFZZ J AC 10 µH
L851 RCILC0005AWZZ J AF 10 µH,Choke
L862 RCILC0359AFZZ J AC 100 µH,Choke
[90/90C Only]
VIBRATORS
XL201 RCRSC0028AFZZ J AH Crystal,33.8688 MHz
XL401 RCRM-0203AFZZ J AD Ceramic,4.19 MHz
CAPACITORS
C100 VCSATA0JJ106M J AD 10 µF,6.3V,Electrolytic,Tantalum
C102,103 VCKYCY0JB105K J AC 1 µF,6.3V
C106 VCKYCY0JB105K J AC 1 µF,6.3V
C107 VCKYCY1CB104K J AB 0.1 µF,16V
C108,109 VCKYCY0JB105K J AC 1 µF,6.3V
C110 VCKYCY1AB224K J AB 0.22 µF,10V
C111 VCKYCY0JB105K J AC 1 µF,6.3V
C112 VCKYCY1CB104K J AB 0.1 µF,16V
C113 VCKYCY0JB105K J AC 1 µF,6.3V
C114 VCCCCY1HH5R0C J AA 5 pF (CH),50V
C121,122 VCCCCY1HH221J J AA 220 pF (CH),50V
C123,124 VCKYCY1HB331K J AA 330 pF,50V
C130,131 VCKYCY1CB104K J AB 0.1 µF,16V
C132,133 VCKYCY1AB224K J AB 0.22 µF,10V
C165 VCKYCY1CB333K J AA 0.033 µF,16V
C171,172 RC-SZ1144AFZZ J AD 33 µF,6.3V,Electrolytic,Tantalum
C201 VCSATA0JJ106M J AD 10 µF,6.3V,Electrolytic,Tantalum
C202 VCSATE0JJ476M J AD 47 µF,6.3V,Electrolytic,Tantalum
C203 VCKYCY1CB104K J AB 0.1 µF,16V
C204 VCKYCY1AB474K J AC 0.47 µF,10V
C205 VCKYCY1CB104K J AB 0.1 µF,16V
C206 VCKYCY0JB105K J AC 1 µF,6.3V
C207 VCKYCY1CB104K J AB 0.1 µF,16V
C209 VCKYCY1CB104K J AB 0.1 µF,16V
C211 VCCCCY1HH5R0C J AA 5 pF (CH),50V
C212 VCCCCY1HH8R0D J AA 8 pF (CH),50V
C221 VCCCCY1HH220J J AA 22 pF (CH),50V [90/90C Only]
C251 VCKYCY1CB104K J AB 0.1 µF,16V
C252 VCKYTV1CB104K J AA 0.1 µF,16V
C253~255 VCKYCY1CB104K J AB 0.1 µF,16V
C259 VCKYCY1CB104K J AB 0.1 µF,16V
C291 VCKYCY0JB105K J AC 1 µF,6.3V
C351 VCCCCY1HH470J J AA 47 pF (CH),50V
C353 VCSATA0JJ106M J AD 10 µF,6.3V,Electrolytic,Tantalum
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 VCKYCY1AB474K J AC 0.47 µF,10V
C454 VCKYCY1HB222K J AA 0.0022 µF,50V
C481,482 VCKYTV1AB105K J AD 1 µF,10V
C491 VCKYTV1CB104K J AA 0.1 µF,16V
C492 VCKYCY0JB105K J AC 1 µF,6.3V
C500 VCSATA0JJ106M J AD 10 µF,6.3V,Electrolytic,Tantalum
C501,502 VCKYCY1HB222K J AA 0.0022 µF,50V
C503 VCSATA1AJ335M J AB 3.3 µF,10V,Electrolytic,Tantalum
C505,506 VCKYCY1HB102K J AA 0.001 µF,50V
C509,510 VCKYTV1CF225Z J AC 2.2 µF,16V
C511 VCKYCY0JB105K J AC 1 µF,6.3V
C601~604 VCKYCY0JB105K J AC 1 µF,6.3V
C608 VCKYTQ1CB105K J AD 1 µF,16V
C609,610 VCKYCY0JB105K J AC 1 µF,6.3V
C611,612 VCKYCY1CB104K J AB 0.1 µF,16V
C622 VCKYCY1CB104K J AB 0.1 µF,16V
– 1 –
MD-MT80W/90W/90/90C
NO. PARTS CODE
C651 VCKYTV1CF105Z J AB 1 µF,16V
C652 VCKYCY1CB104K J AB 0.1 µF,16V
C701,702 VCSATA0JJ106M J AD 10 µF,6.3V,Electrolytic,Tantalum
C703 VCKYCY1EB103K J AA 0.01 µF,25V
C704 VCSATE0JJ476M J AD 47 µF,6.3V,Electrolytic,Tantalum
C711,712 VCCCCY1HH101J J AA 100 pF (CH),50V
C713,714 VCKYCY0JB105K J AC 1 µF,6.3V
C715,716 VCKYCY1CB104K J AB 0.1 µF,16V
C721,722 VCSATA1AJ335M J AB 3.3 µF,10V,Electrolytic,Tantalum
C723,724 VCKYCY1HB102K J AA 0.001 µF,50V
C725,726 VCSATA1AJ335M J AB 3.3 µF,10V,Electrolytic,Tantalum
C731 VCKYCY1CF224Z J AB 0.22 µF,16V
C733,734 VCKYCY1CB104K J AB 0.1 µF,16V
C753,754 VCKYCY0JB105K J AC 1 µF,6.3V
C758 VCKYTQ1CB105K J AD 1 µF,16V
C760 VCKYCY1CB104K J AB 0.1 µF,16V
C761,762 VCKYTV1CF225Z J AC 2.2 µF,16V
C765,766 VCKYTV1CB224K J AB 0.22 µF,16V
C771 VCSATE0JJ476M J AD 47 µF,6.3V,Electrolytic,Tantalum
C773 VCKYTV1CB224K J AB 0.22 µF,16V
C774 VCKYTV1CF105Z J AB 1 µF,16V
C801 VCKYCY0JB105K J AC 1 µF,6.3V
C802 VCKYCY1EB103K J AA 0.01 µF,25V
C803 VCKYCY1CB104K J AB 0.1 µF,16V
C818 VCKYCY1CB104K J AB 0.1 µF,16V
C821 VCKYTQ1AB335K J AF 3.3 µF,10V
C822 RC-SZ0001AWZZ J AG 22 µF,6.3V,Electrolytic
C823 VCEAPW0GW227M J AD 220 µF,4.0V,Electrolytic
C825 VCKYTQ0JB106K J AE 10 µF,6.3V
C826 VCCCCY1HH101J J AA 100 pF (CH),50V
C827 VCCCCY1HH221J J AA 220 pF (CH),50V
C828 VCKYCY0JB105K J AC 1 µF,6.3V
C830 VCKYCY0JB105K J AC 1 µF,6.3V
C832~835 VCKYCY1CB104K J AB 0.1 µF,16V
C836 VCKYTQ1CB105K J AD 1 µF,16V
C837 VCKYCY0JB105K J AC 1 µF,6.3V
C838 VCKYCY1CB104K J AB 0.1 µF,16V
C839 VCKYTV1CB334K J AC 0.33 µF,16V
C840 VCEAPW0GW227M J AD 220 µF,4.0V,Electrolytic
C841 VCKYCY0JB105K J AC 1 µF,6.3V
C842 RC-SZ1144AFZZ J AD 33 µF,6.3V,Electrolytic,Tantalum
C843 VCKYTV1CB224K J AB 0.22 µF,16V
C844 VCSATA0JJ106M J AD 10 µF,6.3V,Electrolytic,Tantalum
C845,846 VCKYCY1CB104K J AB 0.1 µF,16V
C847,848 VCKYCY0JB105K J AC 1 µF,6.3V
C849 VCEAPW0GW227M J AD 220 µF,4.0V,Electrolytic
C850 VCKYTV1CB104K J AA 0.1 µF,16V
C851 VCKYTQ1AB335K J AF 3.3 µF,10V
C852 RC-SZ0001AWZZ J AG 22 µF,6.3V,Electrolytic
C853 VCEAPW0GW227M J AD 220 µF,4.0V,Electrolytic
C856 VCCCCY1HH680J J AA 68 pF (CH),50V
C857 VCCCCY1HH180J J AA 18 pF (CH),50V
C860 VCKYCY0JB105K J AC 1 µF,6.3V
C862,863 VCKYCY0JB105K J AC 1 µF,6.3V
C869 VCSATE0JJ476M J AD 47 µF,6.3V,Electrolytic,Tantalum
C876 VCKYCY0JB105K J AC 1 µF,6.3V
C901~903 VCKYCY1HB222K J AA 0.0022 µF,50V
C904 VCKYTV1CB334K J AC 0.33 µF,16V
C905 VCKYCY1HB471K J AA 470 pF,50V
C906,907 VCKYCY1CB823K J AB 0.082 µF,16V
C908 VCKYCY1CB473K J AA 0.047 µF,16V
C910 VCKYCY1CB104K J AB 0.1 µF,16V
C911 VCKYTQ1AB335K J AF 3.3 µF,10V
C912~914 VCKYCY1HB222K J AA 0.0022 µF,50V
PRICE
RANK
DESCRIPTION
RESISTORS
VRS-CY1JB000J J AA
VRS-TV2AB000J J AA 0 ohm,Jumper,1.25×2mm,Green
L202 VRS-TV2AB330J J AA 33 ohms,1/10W
L491 VRS-TV2AB330J J AA 33 ohms,1/10W
L710 VRS-TV2AB470J J AA 47 ohms,1/10W
R101~104 VRS-CY1JB223J J AA 22 kohms,1/16W
R111 VRS-CY1JB123J J AA 12 kohms,1/16W
R112 VRS-CY1JB224J J AA 220 kohms,1/16W
R131 VRS-CY1JB124F J AA 120 kohms,1/16W
R132 VRS-CY1JB824F J AA 820 kohms,1/16W
R133 VRS-CY1JB124F J AA 120 kohms,1/16W
R134 VRS-CY1JB824F J AA 820 kohms,1/16W
R135 VRS-CY1JB563F J AA 56 kohms,1/16W
R136 VRS-CY1JB394F J AA 390 kohms,1/16W
R137 VRS-CY1JB563F J AA 56 kohms,1/16W
0 ohm,Jumper,0.8×1.55mm,Green
NO.
R138 VRS-CY1JB394F J AA 390 kohms,1/16W
R139 VRS-CY1JB393J J AA 39 kohms,1/16W
R140 VRS-CY1JB394J J AA 390 kohms,1/16W
R161 VRS-CY1JB122J J AA 1.2 kohms,1/16W
R204 VRS-CY1JB102J J AA 1 kohm,1/16W
R205 VRS-CY1JB333F J AA 33 kohms,1/16W
R206 VRS-CY1JB273F J AA 27 kohms,1/16W
R207 VRS-CY1JB681J J AA 680 ohms,1/16W [90/90C Only]
R222 VRS-CY1JB105J J AA 1 Mohm,1/16W
R250,251 VRS-CY1JB101J J AA 100 ohm,1/16W
R252 VRS-CY1JB154F J AA 150 kohms,1/16W
R253 VRS-CY1JB393F J AF 39 kohms,1/16W
R254 VRS-CY1JB223J J AA 22 kohms,1/16W
R255 VRS-CY1JB472J J AA 4.7 kohms,1/16W
R256 VRS-CY1JB563J J AA 56 kohms,1/16W
R257 VRS-CY1JB273F J AA 27 kohms,1/16W
R261 VRS-CY1JB102J J AA 1 kohm,1/16W
R262 VRS-CY1JB124F J AA 120 kohms,1/16W
R266 VRS-CY1JB473F J AA 47 kohms,1/16W
R267 VRS-CY1JB103F J AA 10 kohm,1/16W
R269 VRS-CY1JB223F J AA 22 kohms,1/16W
R270,271 VRS-CY1JB683F J AA 68 kohms,1/16W
R272 VRS-CY1JB101J J AA 100 ohm,1/16W
R277 VRS-CY1JB393J J AA 39 kohms,1/16W
R279 VRS-CY1JB101J J AA 100 ohm,1/16W
R281 VRS-CY1JB223J J AA 22 kohms,1/16W
R282 VRS-CY1JB105J J AA 1 Mohm,1/16W
R283 VRS-CY1JB104J J AA 100 kohm,1/16W
R284 VRS-CY1JB394J J AA 390 kohms,1/16W
R285 VRS-CY1JB104J J AA 100 kohm,1/16W
R286 VRS-CY1JB222J J AA 2.2 kohms,1/16W
R287 VRS-CY1JB564J J AA 560 kohms,1/16W
R288 VRS-CY1JB473J J AA 47 kohms,1/16W
R291 VRS-CY1JB101J J AA 100 ohm,1/16W
R292 VRS-CY1JB104J J AA 100 kohm,1/16W
R293 VRS-CY1JB222J J AA 2.2 kohms,1/16W
R294~296 VRS-CY1JB104J J AA 100 kohm,1/16W
R351 VRS-TV2AB3R9J J AA 3.9 ohms,1/10W
R361 VRS-TQ2BB150J J AA 15 ohms,1/8W
R402 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
R411 VRS-CY1JB104J J AA 100 kohm,1/16W
R412 VRS-CY1JB153J J AA 15 kohms,1/16W
R413~416 VRS-CY1JB102J J AA 1 kohm,1/16W
R422 VRS-CY1JB104J J AA 100 kohm,1/16W
R423 VRS-CY1JB223F J AA 22 kohms,1/16W
R424,425 VRS-CY1JB223J 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
R460 VRS-CY1JB683J J AA 68 kohms,1/16W
R461 VRS-CY1JB104J J AA 100 kohm,1/16W
R462 VRS-CY1JB273J J AA 27 kohms,1/16W
R463 VRS-CY1JB104J J AA 100 kohm,1/16W
R464 VRS-CY1JB224J J AA 220 kohms,1/16W
R465 VRS-CY1JB104J J AA 100 kohm,1/16W
R466 VRS-CY1JB564J J AA 560 kohms,1/16W
R467 VRS-CY1JB223J J AA 22 kohms,1/16W
R492 VRS-CY1JB102J J AA 1 kohm,1/16W
R501,502 VRS-CY1JB471J J AA 470 ohms,1/16W
R600 VRS-CY1JB560J J AA 56 ohms,1/16W
R601 VRS-CY1JB563J J AA 56 kohms,1/16W
R701 VRS-CY1JB101J J AA 100 ohm,1/16W
R702 VRS-CY1JB220J J AA 22 ohms,1/16W
R703 VRS-CY1JB104J J AA 100 kohm,1/16W
R711,712 VRS-CY1JB682J J AA 6.8 kohms,1/16W
R713,714 VRS-CY1JB103J J AA 10 kohm,1/16W
R715,716 VRS-CY1JB104J J AA 100 kohm,1/16W
R717,718 VRS-CY1JB102J J AA 1 kohm,1/16W
R719,720 VRS-CY1JB682J J AA 6.8 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
PRICE
RANK
DESCRIPTIONPARTS CODE
– 2 –
MD-MT80W/90W/90/90C
NO.
R727 VRS-CY1JB822J J AA 8.2 kohms,1/16W
R728 VRS-CY1JB102J J AA 1 kohm,1/16W
R729,730 VRS-CY1JB472J J AA 4.7 kohms,1/16W
R754 VRS-CY1JB154J J AA 150 kohms,1/16W
R757 VRS-CY1JB222J J AA 2.2 kohms,1/16W
R758 VRS-CY1JB101J J AA 100 ohm,1/16W
R761 VRS-CY1JB154J J AA 150 kohms,1/16W
R762 VRS-CY1JB104J J AA 100 kohm,1/16W
R765,766 VRS-CY1JB150J J AB 15 ohms,1/16W
R767,768 VRS-CY1JB4R7J J AA
R802 VRS-CY1JB561J J AA 560 ohms,1/16W
R803 VRS-CY1JB122J J AA 1.2 kohms,1/16W
R806 VRS-CY1JB563J J AA 56 kohms,1/16W
R807 VRS-CY1JB223J J AA 22 kohms,1/16W
R808 VRS-TV2AB1R0F J AB 1 ohm,1/10W
R809 VRS-TV2AB1R0J J AA 1 ohm,1/10W
R810 VRS-TV2AB1R0F J AB 1 ohm,1/10W
R811 VRS-TV2AB1R0J J AA 1 ohm,1/10W
R812~815 VRS-CY1JB103F J AA 10 kohm,1/16W
R816 VRS-CY1JB152J J AA 1.5 kohms,1/16W
R818 VRS-CY1JB564J J AA 560 kohms,1/16W
R819 VRS-CY1JB223J J AA 22 kohms,1/16W
R823 VRS-CY1JB274J J AA 270 kohms,1/16W
R824 VRS-CY1JB103J J AA 10 kohm,1/16W
R825 VRS-CY1JB304F J AF 300 kohms,1/16W
R826 VRS-CY1JB106J J AA 10 Mohm,1/16W
R827 VRS-CY1JB224F J AA 220 kohms,1/16W
R831,832 VRS-CY1JB184F J AA 180 kohms,1/16W
R833 VRS-CY1JB470J J AA 47 ohms,1/16W
R841 VRS-CY1JB104J J AA 100 kohm,1/16W
R844 VRS-CY1JB470J J AA 47 ohms,1/16W
R850 VRS-CY1JB104J J AA 100 kohm,1/16W
R852 VRS-TV2AB3R3J J AA 3.3 ohms,1/10W
R853 VRS-CY1JB274J J AA 270 kohms,1/16W
R854 VRS-CY1JB103J J AA 10 kohm,1/16W
R855 VRS-CY1JB394F J AA 390 kohms,1/16W
R856 VRS-CY1JB106J J AA 10 Mohm,1/16W
R857 VRS-CY1JB334F J AA 330 kohms,1/16W
R871 VRS-CY1JB104J J AA 100 kohm,1/16W
R901~904 VRS-CY1JB1R0J J AA 1 ohm,1/16W
R906 VRS-CY1JB155J J AA 1.5 Mohms,1/16W
R908 VRS-CY1JB223J J AA 22 kohms,1/16W
R920 VRS-CY1JB104J J AA 100 kohm,1/16W
R921 VRS-CY1JB331J J AA 330 ohms,1/16W
R922 VRS-CY1JB104J J AA 100 kohm,1/16W
PARTS CODE
PRICE
RANK
DESCRIPTION
4.7 ohms,1/16W [80W/90W Only]
OTHER CIRCUITRY PARTS
CN101 QCNCW854XAFZZ J AL Socket,22Pin
CN451 QCNCW804NAFZZ J AE Socket,13Pin
CN482 QCNCW804JAFZZ J AE Socket,9Pin
CN601 QCNCW716PAFZZ J AF Socket,14Pin
1 F841 QFS-L401AAFNZ J AE Square Tip Type Fuse,0.4A,
J701 VHLGP1FD202-1 J AT Jack,Optical/Line
J702 QJAKM0014AWZZ J AF Jack,Mic IN
J703 QJAKM0015AWZZ J AL
J801 QJAKC0007AWZZ J AF Jack,DC IN
M901 RMOTV0040AWZZ J AW Motor Ass’y [Spindle]
M902 RMOTV0511AFZZ J AT Motor Ass’y [Sled]
M903 RMOTV0531AFM1 J AQ Motor Ass’y [Lift]
1 R801 VHHSMDM110V-1 J AK Conductive Restn Switch
SW401 QSW-M0172AFZZ J AD Switch,Push Type [Eject]
SW403 QSW-M0172AFZZ J AD Switch,Push Type [Lid Open]
SW601 QSW-M0011AWZZ J AE Switch,Push Type [Disc Protect]
DC60V
Jack,Remote Control/Headphones
MD MECHANISM PARTS
1 LCHSM0121AWM1 J AG Main Chassis Ass’y
2 LHLDX3011AWM1 J AH Cartridge Holder Ass’y
3 MLEVF0071AWFW J AC Lift Link Lever
4 MLEVF0072AWFW J AC Head Angle Move Lever
5 MLEVF0073AWFW J AC Lever,Lift
6 MLEVF0074AWFW J AC Lever,Eject
7 MLEVF0075AWFW J AC Lever,Cancel
8 MSPRP0048AWFJ J AC Spring,Thrust
9 MSPRP0922AFFJ J AD Spring,Drive Grip
10 MSPRT0054AWFJ J AB Spring,Eject Lever
11 NGERH0144AWZZ J AC Gear,Drive
12 NGERH0145AWZZ J AB Drive Wheel
13 NSFTD0008AWZZ J AG Drive Screw
14 NSFTM0292AFFW J AC Shaft,Guide
NO. PARTS CODE
15 QPWBH0013AWM1 J Mechanism Flexible PWB Ass’y
15- 1 ———— — Mechanism Flexible PWB
15- 2(PH901) VHPRPI221++-1 J Photo Interupter,RPI221
16 RCILH0003AWM2 J AT Magnetic Head Ass’y
1 17 92LHPM234 J BM Optical Pickup Unit
501 LX-BZ0049AWZZ J AB Screw,ø1.4×1.8mm
502 LX-BZ0059AWZZ J AB Screw,ø1.4×1.8mm
503 LX-BZ0823AFZZ J AA Screw,ø1.4×1.2mm
504 LX-BZ0997AFZZ J AC Screw,ø1.4×4.5mm
505 LX-EZ0030AWZZ J AA Screw,ø1.4×2.5mm
506 LX-JZ0148AFZZ J AA Screw,ø1.7×3mm
507 LX-WZ9290AFZZ J AA Washer,ø0.8×ø2.4×0.2mm
508 LX-WZ9296AFZZ J AA Washer,ø1.5×ø3.5×0.25mm
509 XSPSN14P01500 J AA Screw,ø1.4×1.5mm
M901 RMOTV0040AWZZ J AW Motor Ass’y [Spindle]
M902 RMOTV0511AFZZ J AT Motor Ass’y [Sled]
M903 RMOTV0531AFM1 J AQ Motor Ass’y [Lift]
PRICE
RANK
(Supplies at Ref No.15)
(Supplies at Ref No.15)
DESCRIPTION
CABINET PARTS
201 GCABA1234AWSA J AL Center Cabinet [80W]
201 GCABA1234AWSB J AL Center Cabinet [90W/90/90C]
202 GCOVA1389AWSA J AF Battery Cover [80W]
202 GCOVA1389AWSB J AF Battery Cover [90W/90/90C]
203 GDORB0004AWSA J AE Battery Lid [80W]
203 GDORB0004AWSB J AE Battery Lid [90W/90/90C]
204 GFTAT3015AWM1 J AY Top Cabinet Ass’y. [80W]
204 GFTAT3016AWM1 J AY
205 GFTAU3044AWSA J AU Bottom Cabinet [90]
205 GFTAU3045AWSA J Bottom Cabinet [80W]
205 GFTAU3049AWSA J Bottom Cabinet [90W]
205 GFTAU3050AWSA J Bottom Cabinet [90C]
206 HDECQ0721AWSA J AM Decoration Plate [80W]
206 HDECQ0722AWSA J AM Decoration Plate [90W/90/90C]
207 JKNBZ0807AWSA J AK Button,Function [80W]
207 JKNBZ0810AWSA J AK Button,Function [90W/90/90C]
208 JKNBZ0809AWSA J AE Knob [Open]
209 LANGT0109AWFW J AF Bracket,LCD/Button
210 LANGZ0112AWFW J AD Bracket,Battery Cover
211 LHLDZ1344AWZZ J AD Holder LCD
212 LHLDZ3021AWM1 J Eject Lever Frame Ass’y.
212- 1 ———— — Eject Lever Frame Ass’y.
212- 2 MSPRT0055AWFJ J AC Spring,Eject Lever
212- 3 MSPRT0056AWFJ J AC Spring,Record Detect Lever
213 LHLDZ3022AWM1 J Frame Ass’y.,Left
214 LHLDZ3023AWM1 J Battery Terminal Frame Ass’y.
214- 1 ———— — Battery Terminal Frame Ass’y.
214- 2 MSPRD0161AWFW J AC Spring,Detect
215 PCOVW1014AWSA J AC Cover,Terminal
216 PSHET0051AWZZ J AC Insulation Sheet,Bottom Cabinet
217 PSHEZ0113AWZZ J AC Window Tape [80W]
218 PSHEZ0114AWZZ J AC Knob Tape [80W]
218 PSHEZ0116AWZZ J AK Knob Tape [90W/90/90C]
219 PSHEZ0115AWZZ J AA Key FPC Tape
220 QTANB9033AWFQ J AF Terminal,Battery
221 RUNTK0013AWZZ J AP Key Switch Flexible PWB Ass’y.
222 RUNTZ0033AWZZ J BA LCD Unit Ass’y.
223 TCAUS0053AWZZ J Label,Class 3B [80W/90W Only]
224 PSHEF0026AWZZ J AA Sheet
225 TSPC-0851AWZZ J Label,Specification
225 TSPC-0852AWZZ J Label,Specification
226 PCUSZ0028AWZZ J Cushion
227 PCUSZ0031AWZZ J Cushion
601 LX-BZ0805AFFN J AB Screw,ø1.7×2.5mm
602 LX-BZ0960AFZZ J AB Screw,ø1.4×1.5mm
603 LX-BZ1008AFFC J AB Screw,ø1.4×2mm
604 LX-CZ0010AWFC J AB Screw,ø1.4×4mm
605 LX-CZ0012AWFF J AB Screw,ø1.4×2.5mm
Top Cabinet Ass’y. [90W/90/90C]
(Not Replacement Item)
(Not Replacement Item)
[For Thailand,80W]
[For Thailand,90W]
PACKING PARTS (Except for U.S.A)
SPAKA0237AWZZ J AE Packing Add.
SPAKC1182AWZZ J Packing Case [80W]
SPAKC1185AWZZ J Packing Case [90W]
SPAKC1186AWZZ J Packing Case [90]
SPAKC1230AWZZ J Packing Case [90C]
– 3 –
MD-MT80W/90W/90/90C
NO. PARTS CODE
SPAKZ0490AWZZ J AC Pad,Operation Manual
SPAKZ0624AWZZ J Pad,Protection
SPAKZ0630AWZZ J Pad,AC Adaptor [90/90C]
SPAKZ0753AWZZ J Pad,AC Adaptor [80W/90W]
SSAKH0033AWZZ J AB Bag,Polyethylene
TLABE0514AWZZ J Label,Bar Code [80W]
TLABE0517AWZZ J Label,Bar Code [90W]
TLABG0002AWZZ J AB Label,Hong Kong [80W/90W]
TLABJ0009AWSA J AB Label,Company Name
TLABJ0010WAZZ J JAPAN Label
TLABN0092AWZZ J AB Label SER.No. [90/90C]
TLABN0094AWZZ J AB Label SER.No.
TLABRF241AWZZ J Label,Bar Code [90C]
TLABR1196AWZZ J AB Label,Bar Code [90]
TLABS0294AWZZ J AB Label,CPA
TLABZ0600AWSA J AC Label,COUNTRY OF ORIGIN
TLABZ0618AWZZ J AB Label,M.I.M
PRICE
RANK
DESCRIPTION
[For Union of Arab Emirates,
80W/90W]
[For Union of Arab Emirates,
80W/90W]
[For Thailand,80W/90W]
[Except for Australia/Philippines/Thailand/Hong Kong/
Jordan Reunion/Union of Arab
Emirates,80W/90W]
[For Australia/Jordan Reunion,
80W/90W]
[For Australia/Thailand,80W/
90W]
ACCESSORIES
QCNWG0029AWZZ J Connecting Cord [90/90C]
QCNWG0382AFZZ J AK Connecting Cord,RCA Type
QCNWG0422AFZZ J AQ Optical Cable [90W/90/90C]
1 QPLGA0004AWZZ J AF Plug [For Philippines,80W/90W]
1 RADPA3048AWZZ J AW AC Adaptor [90/90C]
1 RADPA5050AWZZ J AC Adaptor
1 RADPA5051AWZZ J BF AC Adaptor
1 RADPA5052AWZZ J BF AC Adaptor
1 RADPA6049AWZZ J BF AC Adaptor
1 RPHOH0005AWZZ J AX Headphones [90W/90/90C]
1 RPHOH0012AWZZ J AW Headphones [80W]
RRMCW0002AWSA J AY Remote Contorol [90W/90/90C]
TCAUH0050AWZZ J AB Caution Sheet,Headphones
TGANE0011AW62 J Warranty Card
TGANE0011AW63 J Warranty Card
TINSE0355AWZZ J AE Operation Manual [90]
TINSE0356AWZZ J AE Operation Manual
TINSE0357AWZZ J AE Operation Manual
TINSK0116AWZZ J AG Operation Manual [90C]
TINSZ0659AWZZ J Operation Manual
TINSZ0661AWZZ J Operation Manual
TINSZ0663AWZZ J AH Quick Guide [90]
UBAGC0003AWZZ J AD Battery Carrying Case
UBAGC0006AWSA J AH Carrying Bag [90/90C]
UBATM0003AWSA J AR Rechargeable Nickel-Metal
92LGCARD1266E1 J AC Warranty Card
[80W/90W]
[For Hong Kong,80W/90W]
[Except for Australia/Thailand/
Hong Kong,80W/90W]
[For Thailand,80W/90W
[For Australia,80W/90W]
[90/90C]
[For Philippines,80W]
[For Philippines,90W]
[For Australia,80W]
[For Australia,90W]
[Except for Australia,80W]
[Except for Australia,90W]
[90W/90/90C]
Hydride Battery [90W/90/90C]
[For Australia,80W/90W]
]
P.W.B. ASSEMBLY (Not Replacement Item)
PWB-A 92LPWB3674MDS J — Main [80W/90W]
PWB-A 92LPWB3682MDS J — Main [90/90C]
NO.
OTHER SERVICE PARTS
UDSKM0001AFZZ J AZ Recording Mini Disc
88GMMD-110 J BV High Reflection Disc MMD-110
88GMMD-212 J BU Low Reflection Disc MMD-212
88GMMD-213A J BT Low Reflection Disc MMD-213A
PRICE
RANK
DESCRIPTIONPARTS CODE
(TEAC Test MD)
(TEAC Test MD)
(TEAC Test MD)
– 4 –
MD-MT80W/90W/90/90C
502x2
A
16
501
14
9
B
17
506
13
505x3
509
8
C
12
15-2
(PH901)
503x2
507
M901
15-1
11
D
508
3
1
M902
504
15
E
F
4
M903
2
G
7
10
H
5
6
1
23456
Figure 5 MD MECHANISM EXPLODED VIEW
– 5 –
MD-MT80W/90W/90/90C
204
A
MD
MECHANISM
MD-MT90W/90/90C
224
B
207
201
210
603
206
226
215
217
C
MD-MT80W
603x2
603
603
220
226
202
208
204
213
212-2
602
227
214-2
604
D
212-1
214-1
203
218
603x2
212
212-3
214
207
MD-MT80W
E
602
604
211
222
F
601
601
601
221
219
209
G
605
605
603
603x2
603
PWB-A
216
603x2
603
223
H
1
23456
205
225
Figure 6 CABINET EXPLODED VIEW
– 6 –
MD-MT80W/90W/90/90C
PACKING OF THE SET (FOR U.S.A. ONLY)
Setting position of switches and knobs
Remote Control
HOLD CANCEL
Pad,Accessories
SPAKZ0490AWZZ
Operation Manual
Label,SER.No.
TLABN0092AWZZ
Pad,Protection
SPAKZ0624AWZZ
Connection Cable
(for digital recording)
Headphones
Packing Case
SPAKC1186AWZZ
Quick Guide
Carrying Case
Caution,Headphone
Rechargeable Battery
Connection Cable
(for analog recording)
Battery Case
Bag,Polyethylene
SSAKH0033AWZZ
Remote Control
AC Adaptor
Pad,AC Adaptor
SPAKZ0630AWZZ
Packing Add.
SPAKA0237AWZZ
: Not Replacement Item
Label,Bar Code
TLABR1196AWZZ
– 7 –
–MEMO–
MD-MT80W/90W/90/90C
– 8 –
MD-MT80W/90W/90/90C
COPYRIGHT 2001 BY SHARP COPORATION
©
ALL RIGHTS RESERVED.
No part of this publication may be reproduced,
stored in a retrieval system, or transmitted in
any form or by any means, electronic, mechanical,
photocopying, recording, or otherwise, without
prior written permission of the publisher.
SHARP CORPORATION
Communication Systems Group
Quality & Reliability Control Center
Higashihiroshima, Hiroshima 739-0192, Japan
Printed in Japan
A0104-2421SS•HA•M
SA•SZ•EX•SC•SL•LAG
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