Sharp MDS301MK Service Manual

MD-S301MK

SERVICE MANUAL

No. S8865MDS301MK

MD-S301MK

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

This Service Manual is for the MD-S301MK, which is a minormodification
model of the MD-S301, This manual, therefore, describes only the changed
points from the service manual. Please refer to the MD-S301 service manual
(No. S1801MDS301//) together with this manual.

MD-S301

Page

INSTALLING THE TOP CABINET .................................. 7

TEST MODE MENU ...................................................... 10

WAVEFORMS OF MD CIRCUIT................................... 31

TROUBLESHOOTING................................................... 32

FUNCTION TABLE OF IC ............................................. 36

CONTENTS

Page

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

BATTERY DISPOSAL............................................................................................................................................................. 2

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

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

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

DISASSEMBLY...................................................................................................................................................................... 7

REMOVING AND REINSTALLING THE MAIN PARTS......................................................................................................... 8

ADJUSTMENT ....................................................................................................................................................................... 9

BLOCK DIAGRAM ................................................................................................................................................................ 11

SCHEMATIC DIAGRAM/WIRING SIDE OF P.W.BOARD.................................................................................................... 12

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

NOTES ON SCHEMATIC DIAGRAM ................................................................................................................................... 18

PARTS GUIDE/EXPLODED VIEW

SHARP CORPORATION

– 1 –

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

MD-S301MK

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

SPECIFICATIONS

General
Power source:

Power consumption:7 W (AC adaptor)
Output power: RMS; 10 mW (5 mW + 5 mW)

Charging time: Approx. 3.5 hours

Battery life:

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

Approx. 8 hours Approx.3.5 hours Approx. 11.5 hours

Volume level: "VOL 15"
The above values are the standard values when the unit is
charged and used at an ambient temperature of 68 ˚F (20 ˚C).
The playing time when using an alkaline battery may be different,
depending on the type and manufacturer of the battery and on the
operating temperature.

DC 3.6 V (rechargeable lithium-ion battery x 1)
DC 5 V (AC adaptor)
AC 120V, 60 Hz
DC 1.5 V: Optionally available battery case,

DC 4.5 V: Optionally available car adaptor,

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

the unit)

When using one, commer­cially available, high
capacity, "AA" size, alkaline
battery (in the optionally
available battery case)

AD-S30BC(commercially available,
"AA" size, alkaline battery x 1)

AD-CA20X(
DC negative
system)

for cars with a 12-24V

ground electrical

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

Output level:

Specified

output

Headphones — 5 mW + 5 mW 32 ohms
LINE 250 mV (-12 dB) — 50 kohms

Dimensions: Width: 3-7/16" (87 mm)

Height: 31/32" (24 mm)
Depth: 3-3/32" (78 mm)

Weight: 0.43 lbs. (192 g) with rechargeable

battery

Output socket: Headphones (impedance: 19 ohms)/

remote control unit

Maximum

output level

Load

impedance

MiniDisc Player

Type: Portable MiniDisc player
Signal readout: Non-contact, 3-beam semi-conductor

Audio channels: 2
Frequency response: 20 - 20,000 Hz (± 3 dB)
Rotation speed: Approx. 400 - 900 rpm
Error correction: ACIRC (Advanced Cross Interleave

Coding: ATRAC (Adaptive TRansform
D/A converter: 1 bit

Sampling frequency: 44.1kHz
Modulation system: EFM (Eight to Fourteen Modulation)
Wow and flutter: Unmeasurable (less than ±0.001%

laser pick-up

Reed-Solomon Code)
Acoustic Coding)

W.peak)

Specifications for this model are subject to change without
prior notice.

BATTERY DISPOSAL

Contains nickel cadmium (or sealed lead) battery.Must be
recycled or disposed of properly.Remove the battery from the
product and contact federal or state environmental agencies
for information on recycling and disposal options.

– 2 –

NAMES OF PARTS

Main unit

1. Volume Buttons: +, –

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

3. Power Indicator

4. Fast Reverse Button:

5. Play/Fast Forward Button:

6. 5V DC Input Socket

7. Eject Lever

8. Hold Switch

9. Battery Case Connection Terminals

10. Headphones Socket

11. Rechargeable Lithium-lon Battery Compartment

MD-S301MK

1

2

5
6

3

7

8

10

Remote control unit

1. Character/Time Information Display

2. Disc Mode Indicator

3. Total Track Number Display

4. Track Number Indicator

5. Battery Indicator:

6. Repeat Indicator:

7. Random Indicator

8. Headphones Socket

9. Hold Switch

10. Play Mode Button

11. Volume Buttons: +, –

12. Bass Button

13. Display Button

14. Play/Pause Button:

15. Stop/Power Off Button:

16. Fast Reverse/Fast Foward Buttons:

9

8
9

10

11

2

1

TOTAL

3

4

1

RANDOM

5

11

6
7

13

14
15

– 3 –

16

12

MD-S301MK

■ Rechargeable battery power

When the rechargeable battery is used for

the first time or when you want to use it

after a long period of disuse, be sure to

charge it fully.

1Open the rechargeable battery com-

partment cover.

2Insert the rechargeable battery.

● Insert the side with the arrow first.

3Close the rechargeable battery com-

partment cover.

4Plug the AC adaptor into the AC outlet,

and then insert the plug on the AC

adaptor cord into the DC IN 5V jack.

5Press the ■:OFF button to begin charg-

ing.

● The POWER indicator will flash, and

the battery will begin charging.

● Battery charging will be complete in 3.5

hours. When the battery is fully

charged, the POWER indicator will go

out.

1

2

POWER SOURCE

Notes:

● After charging is complete, the AC

adaptor may be left connected.

(For example, when charging at night)

● The battery will not be charged when-

ever the power to the main unit is

turned on.

● If the operation in step 5 is performed

without inserting the rechargeable bat-

tery, the POWER indicator will flash for

5 seconds. This is normal.

● Do not force open the rechargeable

battery cover too far.

● Do not attach the optionally available

battery case when charging the internal

battery.

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

adaptor, an optionally available battery case (AD-S30BC), and an optionally available car

adaptor (AD-CA20X).

OPEN

OPEN

Mark

To the

DC IN 5V

jack

AC 120V, 60 Hz

OPEN

OFF

POWER

5

Insert

securely,

all the way

in.

4

■ Checking the remaining

amount of battery charge

The remaining amount of battery charge is

shown by t he battery indicator ( ) on

the remote control display during oper-

ation.

How to read the battery indicator

● When the battery is completely dis-

charged, the whole battery indicator will

flash. Recharge the battery or replace

the alkaline battery with a new one.

● When the battery has completely run

out, “Lo BATT” will appear in the dis-

play. Then, the power will be discon-

nected automatically.

Notes:

●

When the AC adaptor included with this

unit or an optionally available car adaptor

is used, the battery indicator will not be

shown.

●

The number of bars shown in the battery

indicator may increase or decrease, de-

pending on the operation being per-

formed. This is normal.

●

When the rechargeable battery and the

alkaline battery are used at the same time,

the rechargeable battery is used first, and

then the alkaline battery.

Since the battery indicator shows the re-

maining amount of the particular battery

being used, the number of bars will in-

crease when the unit switches to the al-

kaline battery.

CONVENIENT OPERATION OF THE UNIT

Battery

indicator

Charging is

needed.

When the battery is

completely charged

OPERATION MANUAL

– 4 –

MD-S301MK

If trouble occurs

When this product is subjected to strong

external interference (mechanical shock,

excessive static electricity, abnormal sup-

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

operated incorrectly, it may malfunction. If

such a problem occurs, do the following:

1. Unplug the AC adaptor from the AC

outlet.

2. Remove the battery.

3. Leave the unit completely unpowered

for approximately 30 seconds.

4. Plug the AC adaptor back into the AC

outlet and retry the operation.

If strange sounds, smell or smoke come

out of the unit or an object is dropped into

the unit, remove the AC adaptor from the

AC outlet immediately and contact an au-

thorized Sharp service centre.

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

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

your authorized SHARP dealer or service center.

PROBLEM CAUSE

The unit does not turn

on.

Is the AC adaptor disconnected?

Is the battery exhausted?

Is the unit in the safety mode?

Has condensation formed inside the unit?

Is the unit being influenced by mechanical shock or by

static electricity?

No sound is heard

from the headphones.

Is the volume set too low?

Is the remote control unit or the headphones plugged

in?

Are you trying to play a MiniDisc with data on it

instead of a MiniDisc containing music?

When the operation

buttons are pressed,

the unit does not

respond.

Is the unit in the safety mode?

Is the battery exhausted?

Is the remote control unit plug or the headphone plug

inserted firmly?

Has condensation formed inside the unit?

Is the unit being influenced by mechanical shock or by

static electricity?

Some sounds are

skipped.

Is the battery exhausted?

Is the unit being subjected to excessive vibration?

TROUBLESHOOTING

When an error message is displayed on the display, proceed as follows:

Display Meaning Remedy

BLANK

Nothing is recorded. Replace the disc with a

recorded disc.

E-DISC

The disc is damaged or

the music information is

not written properly on the

disc.

Replace the disc.

E-SYS

The unit is malfunctioning

and will require service.

For service, contact your

local Sharp authorized

servicer.

E-TEMP

The temperature is too

high.

Turn off the power, and

wait for a while.

E-TOC

E-UTOC

The disc is damagad. Replace the disc.

Lo BATT

The battery has run down. Charge the rechargeable

battery or replace the

alkaline battery (or use

the AC adaptor for power).

No DISC

A disc has not been

loaded.

Load a disc.

POWER?

Improper power is being

supplied.

Use one of the specified

power sources.

?DISC

There is an error in the

signal from the disc.

Replace the disc.

ERROR MESSAGES

– 5 –

MD-S301MK

PORTABLE MINIDISC PLAYER Quick-Guide

MD-S301

MK

Guía rápida

AC power

Alimentación de CA

AC 120V, 60Hz
To an AC outlet

120V CA, 60Hz
A un tomacor rien te de CA

To the DC IN 5V jack

Al enchufe DC IN 5V

Alkaline battery power

Alimentación de la pila alcalina

1

• One alkaline battery
(LR6, “AA” size)

•

Una pila alcalina
(tamaño “AA”, LR6)

2

RELEASE LOCK

• Battery is not i ncl uded .

•

La pila no est á i n cl uid a.

Back of the M D pl ayer

Parte trasera del reproductor de minidiscos

Rechargeable battery power

Alimentación de la batería recargable

1

The optio nally avail able a lkali ne
battery case

La caja de la pila alcalina
disponible opcionalmente

Press the ■:OFF

3

2

OPEN

Volume Tone

Volumen Tono

OPEN

Sound control

Control del sonido

Volume level

Nivel de vol ume n

OPEN

AC 120V, 60Hz
To an AC outlet

120V CA, 60Hz
A un tomacor rien te de CA

(1) BASS 1
(2) BASS 2
(3) BASS 3
(4) BASS OFF

BASS

(1) BASS 1

(2) BASS 2
(3) BASS 3

● The volume level can be
adjusted from “0” to “30”.

●

El nivel de vol umen pued e
ajustarse desd e “0” a “30 ”.

(4) BASS OFF

4

button to begin
charging .

Pulse el bo tón

■:OFF

para iniciar

la carga.

Bass is emphasized a little.
Bass is emphasized more.
Bass is emphasized still more.
Bass emphasis is canceled.

Los graves se acentúan un
poco.

Los graves se acentúan más.
Los graves se acentúan toda-

vía más.
La acentuación de los graves

se cancela.

Loading and playing a MiniDisc

Connection

Connection

Inserción y reproducción de un minidisco

Conexión

Conexión

1

2

■ APSS

(Auto Program Search System)

■

APSS

(Sistema de bús queda
automática de programas)

■ Random play or Repeat play

■

Reproducción aleatoria o

reproducción repe tida

PLAY MODE

OFF

Track name
Nombre de pista

To move to the beginning of the next track:

Press the / ( ) button during playback.

To re-start the track being played:

Press th e butto n dur ing play back .

Para pas ar al pr inc ipi o de la pi sta sigu ient e:

Pulse el botó n

Para reiniciar la pista que se está reproduciendo:

Pulse el botón durante la reproducción.

During playback or while in the stop mode, press the PLAY
MODE but ton r epea ted ly to sele ct t he play back mod e.

..........

RANDOM

.............

.............

1

.........

No display

Durante la reproducción o en el modo de parada, pulse repeti­damente el botón PLAY MODE para seleccionar el modo de
reprod ucción.

..........

RANDOM

.............

.............

1

...

Sin visualización

/()

durant e l a r e prod uc ci ó n.

Random play
Repeat play of all of the tracks
Repeat play of a single track
Normal playback

Reproducción aleatoria
Reproducción repetida de todas las pistas
Reproducción repetida de una sola pista

Reproducción normal

■ Important

●Do not wear your headphones when you are cross-

ing stree ts or near traff ic.

● Do n ot us e yo ur he ad phon es wh il e driv in g a mo t or
vehicle, it may create a dangerous traffic hazard
and may be illegal. Remember to obey all of the
safety rules in your area.

●Do not play the unit at a high volume. Hearing
experts advise against extended play at high vol­ume levels.

●If you exper ience ring ing i n your e ars, reduce the
volume or discontinue use.

■

Importante

●

No se ponga auriculares cuando atraviese calles ni
cuando esté cerca del tráfico.

●

No emplee los auriculares mientr as conduce un
vehículo, porque puede cr ear situac iones peligr o­sas en el tráfico y puede ser ilegal. Recuerde que
debe respetar las reglas de seguridad de su zona.

●

No reproduzca sonido en el aparato a altos niveles
de volum en. Lo s exper tos di cen que es per judic ial
la repr oducc ión con tinuada a alto s nivel es de vol ­umen.

●

Si nota timbres en los oídos, reduzca el volumen o
no utilice el aparato.

■ Volume setting

Reduce the volume before starting to play. MiniDiscs,
compared to ordinary cassette tapes, have very little
noise. If the volu me is adjust ed according to your
usual exp ectations of noise, you may damage your
hearing due to the high volume.

■

Ajuste del volume n

Reduzca el volumen antes de iniciar la reproducción.
Los mínidiscos, en compara ción con las cintas de
casete normales, tienen muy poco ruido. Si se ajusta
el volume n de ac ue rdo co n el ruido que p ue de es pe r­arse nor malment e, podría dañar se los oídos debido
al alto vol umen .

– 6 –

DISASSEMBLY

MD-S301MK

Caution on Disassembly

Follow the below-mentioned notes when disassembling
the unit and reassembling it, to keep it safe and ensure
excellent performance:

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

2. When disassembling the machine, be sure to withdraw
the power plug from the socket in advance.

3. When disassemble the parts, remove the nylon band or
wire holder as necessary.

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

they were.

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

nism (the screw of the part to be fitted to the MD
mechanism chassis), it may contact the optical pickup,
resulting in malfunction.

4. When repairing, pay due attention to electrostatic charges
of IC.

STEP

REMOVAL

1 Bottom Cover 1. Battery Cover.........(A1) x1 7-1

2 Top Cabinet 1. Screw.....................(B1) x4 7-1

3 Main PWB 1. Screw .................... (C1) x1 7-2

4 Mechanism Unit 1. Lift the back side, and 7-3

PROCEDURE

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

2. Flexible PWB ........ (B2) x1 7-2

2. Flexible PWB ........ (C2) x2

3. Soldering ............. (C3) x3

remove in the arrow
direction.

FIGURE

Note:

Carefully handle the main PWB and flexible PWB.
So as to prevent electrostatic damage of optical pickup after
removing the flexible PWB (*1) for optical pickup from the
connector, wrap the front end of flexible PWB in conductive
aluminum foil.

(B1)x2
ø1x2.5mm

Center
Cabinet

(C2)x1*
Flexible PWB for
optical pickup

(A2)x2
ø1x2.5mm

Top Cabinet

Pull

(C2)x1

Bottom Cover

Figure 7-1

Pull

(C3)x3

Pull

Figure 7-2

(A2)x2
ø1x2.5mm

(A1)x1

Pull

(A2)x2
ø1x2.5mm

(B1)x2
ø1x2.5mm

(C1)x1
ø2x3mm

Main PWB

(B2)x1

Pull

Pull

Mechanism Unit

Figure 7-3

– 7 –

MD-S301MK

(A2)x3
ø1.4x2.8mm

MD Mechanism

Spindle Motor

Solder joint of mechanism
flexible PWB
(A1)x1

REMOVING AND REINSTALLING THE MAIN PARTS

Remove the mechanism according to the disassembling meth­ods 1 to 4. (See Page 7.)

How to remove the spindle motor (See Fig. 8-1.)

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

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

* When installing the spindle motor, gently press in the arrow

direction (in view of grating).

How to remove the sled motor (See Fig. 8-2.)

1. Remove the stop washer (B1) x 1 pc., and remove the gear
(B2) x 1 pc.

2. Remove the screws (B3) x 2 pcs.

3. Remove the flex PWB soldering joint (B4) x 3 places, and
remove the sled motor.

Note:

Be careful so that the motor gear is not damaged.
(If the gear is damaged, abnormal sound is emitted when
searching is performed.)

Bracket

Sled Motor

Figure 8-1

(B3)x1
ø1.4x1.2mm

(B3)x1
ø1.4x1.5mm

Stop Washer
(B1)x1

(B2)x1

(B4)x3
Solder joint of mechanism
flexible PWB

How to reinstall the optical pickup unit
(See Fig. 8-3.)

1. Remove the screw (C1) x 1 pc.

2. Slowly raise the optical pickup.

Note:

Be careful so that the motor gear is not damaged.
(If the gear is damaged, abnormal sound is emitted when
searching is performed.)

Figure 8-2

(C1)x1
ø1.7x3mm

Optical Pickup

Shaft

Figure 8-3

– 8 –

MD-S301MK

ADJUSTMENT

Preparation for adjustment (use the low reflection disc on which music has been recorded)

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

Type

1 High reflection disc MMD-110 (TEAC TEST MD) 88GMMD-110
2 Low reflection disc MMD-212 (TEAC TEST MD) 88GMMD-212

Test disc

How to enter the TEST MODE (In STANDBY state)

1

Holding down the PLAY MODE button of remote control unit, press the VOL button and button of main unit.

2

Charge control "ON"

3

Indication of microcomputer version for one second [ ]

: Microcomputer ROM version
: EEPROM version

4

All LCD lighting for 2 seconds

5

TEST MODE STOP "_TEST_"
* When the button is pressed while the indication 3 and 4 appears, the mode is changed to TEST MODE STOP state.
* If the button is pressed while indication 3 to 5 appears, the EEPROM rewrite-enable area is updated, and the mode is changed

to STAND-BY state.

How to leave the TEST MODE

1

In the TEST MODE STOP state, version indication state and full-lighting state press the button.

2

Initialization of normal mode setting.

(BASS setting, VOL setting, etc.)

3

EEPROM rewrite-enable area updating and adjustment error setting.

(all items are adjusted when power is turned on in the normal mode)

4

Change to standby state.

Parts No.

—

Preliminary automatic adjustment or EEPROM rewriting

1

Short-circuit TP435 and TP421.

2

Perform preliminary automatic adjustment or EEPROM rewriting.

3

Press the button to set the standby state.

4

Release short-circuiting of TP435 and TP421.

– 9 –

MD-S301MK
EEPROM DATA LIST (ROM Version : h)

Focus setting

Item

F G 3 5 H F F 1 7 0 H
F F 2 F 0 H F H Z D B H
F L n 0 9 H D J G 1 4 H

F R V 0 0 H F P f 8 8 H
F L V 3 5 H W T f 2 0 H
F S S 0 2 H

Setting

Tracking setting

Item

T G 3 B H T F 1 7 0 H
T F 2 E 0 H T F S 0 0 H
T B o 1 9 H T B t 2 A H
T K o 1 F H T K t 1 1 H
T D o B B H T D t 1 E H
S C o 0 0 H S C t 4 0 H

S C m 5 3 H D B O 0 0 H

C L p 1 2 H C L r 2 4 H

W T m 9 0 H

Setting

Spindle setting

Item

S P G 1 6 H S P i A C H
S P m 8 5 H S P o 5 6 H

S P 1 1 0 H S P 2 6 0 H
S P 3 F 2 H S P 4 F 2 H
S P 5 1 0 H S P D 6 9 H

S P R 0 0 H

Setting

Sled setting

Item

S L K 4 2 H S T L 2 1 H
S T M 0 6 H S T E 2 1 H
S D V 6 6 H S J P 0 6 H
S R V 0 9 H

Setting

Item

Item

Item

Item

Setting

Setting

Setting

Setting

Adjustment setting

Item Setting

C O K A 0 H F A T C 0 H

T A T 3 E H C A T 2 0 H

F A B 0 0 H

Item

Digital EQ setting

Item

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 4 H G Q 2 8 A H
G S G 1 1 H G S O 0 0 H
D Q R 0 0 H

Setting

Item

Control setting

Item Setting

C T O 4 7 H C T 1 D 0 H

P W L 0 3 H R C O 1 B H

R C 1 0 0 H D R E 6 E H
D R 1 1 0 H D R 2 4 6 H

I N 1 3 2 H I N 2 4 9 H
I N E 6 E H C T 2 1 4 H
C T 3 8 0 H C T 4 0 0 H
C T 5 0 0 H C T 6 0 0 H
C T 7 0 0 H

H: After measuring temperature set the value obtained

from the correction table.

TEST mode version display:

: Microcomputer ROM version
: EEPROM version
: Destination setting

Item

Setting

Setting

Setting

BASS setting

Item Setting

B S 1 A 2 H B S 2 C 4 H
B S 3 E 4 H

Item

TEMP setting

Item

T M H

Setting

Setting

– 10 –

26~29

32~37

39~46

25

41

74

42

40

28, 30

73

67, 44

+2.5V

Q852

IC404

REMOTE CONTROL

DRIVER

5, 6

IC101

IR3R55

RF SIGNAL

PROCESSOR

Q101

15

1~9

11~19

IC201

LR376481

ENDEC

3, 5~9, 11

74, 70~72

48~55

37~39

90~100

64

65

97
43

SW452 SKIP DOWN

SW453 STOP

SW454 VOLUME DOWN

SW455 VOLUME UP

17~22, 24

IC601

MPC17A39

PICKUP COIL

DRIVER

2, 15~18, 20, 21

17

24

13

1, 3, 6

20, 19

3-PHASE BRUSH

LEESS DRIVER

IC901

BA6965FV

6, 8, 11, 12

4MBIT D-RAM

DRIVER CONT

M

M

M901

SPINDLE MOTOR

A-B SIGNAL

E-F SIGNAL 11, 12

9, 10

1, 2, 3, 4

RF1~RF4 SIGNAL

OPTICAL

PICKUP UNIT

BAE

F

TRACKING

LASER DIODE

FOCUS

RF1

RF2

RF3

RF4

J701

REMOTE CONTROL/

HEADPHONES

L-CH

R-CH

18

19

17

+B+B

70

AUDIO AMP

IC702

IR3R54N

14

16

2, 4

7, 16

22, 23

24

+B

5, 11

15

1, 2, 3, 6

D/A

CONVERTER

IC501

UDA1320

10

7, 5, 3

1~4

4

5

IC403

TC7W14FU

INVERTER

EEPROM

IC402

S29L294A

+B+B

88

11, 1486~88

+B

9, 23, 24

36, 81

IC401

IX2677AF

SYSTEM

MICROCOMPUTER

91, 16~19

82~84, 86

XL201

33.8688MHz

SW401

HOLD SW

SW901

DISC IN

SW451 PLAY/SKIP UP

ENDEC

AUDIO

D/ACONVERTER

LASER

MOTOR DRIVER

12, 33, 72

IC405

S80821LN

RESET

D402

+B

+B

4

2

1

15

POWER DRIVE

IC831, IC832

IC821, IC851

IC871

TK71325M

POWER SUPPLY

MICROCOMPUTER

4

2, 3

5

SYSTEM MICROCOMPUTER

MOTOR DRIVE

CHARGE DRIVE

ON/OFF

D801 Q801

CONSTANT

CURRENT DRIVE

IC812

IC861,

862, 863

START UP DRIVE

2~4

INTERNAL

BATTERY

3.6V

BATTERY

1.5V

1

J801

EXTERNAL BATTERY

DC JACK

(DC IN 5V)

+B

12, 62, 68,

78, 87

IC202

IX2567AF

4M BIT

D-RAM

20

+B

10

+B

5, 9, 10, 14

23, 27, 28, 32

1, 4, 7, 12, 19,

22 , 25, 30, 33

1015

+B

LASER POWER

CONTROL

M902

SLED MOTOR

MD

+B

13, 14, 24, 42 18, 19, 43

1

2

4

25~30, 40

4,13~16

38, 60, 63

9, 88

2~7

SLED MOTER

DRIVER

4, 7, 8

9, 13

8, 10, 12

57

90

S-80821ALNP

Q871

LRAGND

DGND

KEY

PLAY

DATA

EL+B

2

3

4

5

1

7

8

6

U.V.W

U.V.W

IC911, 912, 913

Q901 ~ Q906

POWER SELECT CHARGE

7SH86FU

MD-S301MK

Figure 11 BLOCK DIAGRAM

– 11 –

MD-S301MK

1

4
3
4
0

T

T

9

K

W

A

B

C

TP102

TP101

TP103

TP105

3 2

4

1

R903

150

R420

A

R905
100K

330

5

4 3 2 1

5

B

COM

LDYCC

R906

C903

1

R419
100K

CN101

FLEXBLE

PWB

D

E

F

PLAYBACK SIGNAL

C102

1

C103

@

1

R101
390K

RF SIGNAL

PROCESSOR

TP106

6

7

6

7

DGND

DGND

270K

TP616

TP614

TP108

8

8

LDON

TP109

9

9

LDVAR

R909

10K

C902

0.01

BA6965FV

FG

11
12

BRK+

13
14

STBY
RIB

15

VCC

16
17
18
19

VOUTVMUOUT

20

BRUSH LEESS

TP110

10

11

11

10

RF2

IC901

C911

0.1
3-PHASE

DRIVER

TP113

TP111

13

14

12

14

13

12

MP/R

AGND

OPICVCC

PICKUP UNIT

GND

CSLBRK–

CSL
CST
COM

WIN

VIN

UIN

RFWOUT

TP115

TP114

16

15

16

15

RF4

RF3FRF1

OPTICAL

10

9
8
7
6
5
4
3
2
1

TP116

TP117

18

17

18

17

E

R908
100K

C910

0.047

1

R902

TP119

TP118

19

19

T+

R907
150K

C909

0.047
C908

0.47
C905

0.0022
C906

0.0022

R904

TP120

21

20

21

20

T–

E–

NDS355AN

1

R901

22K

IC101

IR3R55

C161

1

TP121

TP122

22

22

E+

Q901

U
V
W

C907

0.0022

TP144

C104

0.027

Q101

2SA17457

S

R911

100K

D

S

Q904

NDS335N

IC911

RN4904

IC912

RN4904

IC913

RN4904

C112

0.033

48
ROUT
RF1

1

R

RF2

2

and

RF3

3

SW

RF4

4

REFI

5
6

REFO
RFADD

7

TCGI

8

AIN

9

BIN

10

EIN

11

FIN

12

BIAS

13

Q902

NDS355AN

G

S

R912
100K

D

G

S

R914
100K

1

6

2

5
4 3

6

1

5

2

4 3
6

1
2

5
4 3

IC911~IC913’
POWER SELECT
CHARGE DRIVER

R413

1K

47

GOUT

14

R915
100K

AVCC

C111

0.0033

CK112

46

45

TTR

EFMAGI
DIFF
DIFF

BIAS

STBY

16

15

CK101

R154

1.2K

F–

T+

F+

T–

NDS355AN

G

Q905

NDS335N

G

CK902

CK903

44

EFM
AGC

EFMAGC

DISC

17

CK103

CK102

Q903

D D D

S

R913

100K

D

S

R916
100K

CK901

C110

SGAIN

C113

0.1

G

G

0.22

42

43

AGND

LOGIC

AGND

18

19

Q906

NDS335N

C109

AVCC

ADIP
AGC

DGND

41

LPF

20

4.7

EFMI

DTEMP

40

NC

21

CK104

TP145

C107

0.012

39

RF2-1

EFMO

HPF

LATCH

22

CK105

38

ADAG

CLOCK

23

CK106

TP433

R434

37

ADIPI

ADAGC

ADLPFO

TCGO

BOUT
EOUT
FOUT

DATA

24

TP434

1K

R430

10K

ADIPO

22KO

22KI
WBO

AOUT

DVCC

C106

0.22

NC

1
2
3
4

TP139

36
35
34
33
32
31
30
29
28
27
26

25

TP131

TP100

R433

1K

IC402

S29L294A

VCC

CS
SK
DO

PRTCT

GND

DI

2

EEPROM

CK111

CK109

CK108

CK107
TP133
TP132

R112

22K

R111

22K

TP130

R431
100K

8
6

5

TP436

R102

56K
CK110

C121

7

R114

22K

R113

22K

270P(CH)

C122

270P(CH)
R161

C165

0.033

TP435

1K

R435

R414

22K

EFM

TCG

1.2K

WB

C123

A
B
E
F

C124

390P

390P

17

CK205
CK206
CK207

C203

0.1

R204

1K

TP210
CK201

CK203
CK204

FOK

SENSE

CIN
DINT

XRT

SYSD0
SYSD1
SYSD2
SYSD3
SYSD4
SYSD5
SYSD6
SYSD7
SYWRX
SYRDX
SYCS

CIN

TP209

TP417

TP418

TP409
TP410

R222

1M

TP208

74

73

75

72

66

70

68

69

71

67

BCLK

LRCK

VDD3

DFCK

DGND

DOUT

ADDATA

DADATA

TOTMON

76

TEMON

77
78

SBCK

LR376481

98

SYWRX

99

SYRDX

100

SYRS

EFMI

AVCC

TCG

AGND

AIN

FIN

EIN

BIN

10

8

9

6

5

4 3 2

7

EFM

F

B

TCG E WB

A

R231

82K

R233
270K

LED401

CL200HRC

1K

R423

66

70

68

69

71

72

EMPH

SYSTEM MICROCOMPUTER

SLCNT2

4

P57

VSS

76
77

78

SLCNT4

SLCNT3

5

P56

HSTOP
NC P64
NC

98
99
100

SLCNT5

6

7

P54

P55

P65

INNSW
VBATC
PDCNT

OEM

SLCNT6

8

67

9

65

PWLED

PBOPON

IX2677AF

X2

VDD

10

11

100K

R405

C204

0.1
TP201

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

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

75

P66
P67
VDD
SPIN
P101
TEST0
TEST1
EPCS
EEPD
EEPK
P33
ELON
CIN
PHOLD
PCNT1
VPP
PCNT2
CKSTP
DISCIN

FEMON

SBO
SBSY
SFSY
FOK
SENSE
COUT
MCCK
DINTX
VDD1
DGND
RSTX
SYSD0
SYSD1
SYSD2
SYSD3
SYSD4
SYSD5
SYSD6
SYSD7

EFMMON

1

74

P62

HPLAY

SLCNT1

R232

62K

73

3 2 1

TP421

33.868MHz

64

65

63

X1I

DIN

X1O

IC201

ENDEC

VBAT

WBI

VDD1

11

1312

C231

0.1

TP414

62

63

64

PBLAT

RACLK

RADAT

IC401

XT2

VSS

X1

14

13 12

TP422

XL201

61

62

VDD1

DGND

TEST0

DGND

15

14

TP218

TP219

10/6.3

60

60

RFLAT

OPICGA

RESET

XT1

16

15

CK403

VPD

TEST1

C101

LDON

28

27

26

DINT

DINT

5P(CH)

60

59

VXI

50

49

48

28
27
26

TEST2

16

17

X176KO

58

59

P43

50
49

RKEY

PLVDRY
PLVDCI

SENSE

18

17

SENSE

FOK

C211

5P(CH)

58

57

CDBCLK

CDLRCK

EFMO
PLCK
ACRCER

RAA1
RAA2
RAA3

FODRF

X176KO

19

18

FODRF

L101
10µH

57

56

PSLDCI

PSLDRY

SYD2
SYD1

XRT

FOK

19

20

XRT

R411
100K

C212

56

55

TEST4

CDDATA

FODRR

TRDRF

20

21

TRDRF

FODRR

SYSD7

54 53

55

SYD7

PSLINN

PO4

PO5

21

22

C222

22P(CH)

53

54

TEST3

TES01

RARASX

RACASX

TRDRR

SLDRF

23

22

SLDRF

TRDRR

SYSD6

SYSD5

52

SYD6

SYD5

SYD0

BEEP

KHOLD

RPLAY

RMDAT

RMLOG

SYRS
SYRD

SYWR

AVREF1

MDOUT5

LDVAR

AVSS

CNTRY

TEMP

HKEY1

DCNT

AVDD

24

23

C407

52

EX1

EX0

TCRS
RAD0
RAD1

RAWEX

RAA9
RAD3
RAD2

DGND

RAOEX

RAA8
RAA7
RAA6
RAA5
RAA4
VDD2

RAA10

RAA0

SLDRR

SPDRF

24

25

SPDRF

SYSD4

SYSD3

51

SYD3

SYD4

P27
P26
P25

ANI5

PLVINN

AVREF0

25

TP411

1

51

X700KO

SPDRR

C201

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

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

1

SYSD2
SYSD1
SYSD0

TP413

SYCS
SYRDX
SYWRX

TP419

TP220

L201

CK406
CK405
CK404

22K

R408

TP205
TP204
TP203
TP206

4.7µH

S

R407

TP412

R40

22

C

0.

100K

R
3

TP606

TP605

6

5

6

5
U

COM

TP607

8

7

8

7

W

U

TP608

TP609

9

9

V

V

MOTOR

TP610

10

11

10

11

U

V

M901
SLED

W

1

M

3

V

TP611

TP612

13

12

13

12

W

COM

1

3

M

4

2 4

COM

M902

SPINDLE

MOTOR

W

U

TP613

CN601

2

COM

C603

X176KO

1
2
3

R601

4

56K

L601

5

47uH

T+
T–

F+

1

C601

1

1

C604

6

L602

7

47µH

8
9

L603

10

47µH

F–

11

L604

12

47µH

13
14

TRDRR

15

TRDRF

16

FODRF

17

FODRR

18

C602

1

PICKUP COIL DRIVER

CLK
PS
OE
VD1
FO1

PGND

PGND
RO1
VD1
VD2
RO2

PGND

PGND
FO2
VD2
RI1
FI1
FI2
RI2

IC601

MPC17A39

36

VC

35
34

LG

GND

33

VD3

32

FO3

31
30

RO3

29

VD3

28

VD4

27
26

RO4

25

FO4

24

VD4

23

RI3

22
21

FI3

SPDRF

FI4

20

RI4

19

VG

AGND

TP601

TP603

TP604

TP602

4 3 2 1

4 3 2 1

G

MECHANISM

FLEXIBLE PWB

PH901

SW901
DISC IN

SPINDLE MOTOR/SLED MOTOR UNIT

GP1S93K

H

• NOTES ON SCHEMATIC DIAGRAM can be found on page 18.

1

23456

Figure 12 SCHEMATIC DIAGRAM (1/2)

C622

0.1

L609
10µH

TP617

C600

15/10

L608
47µH

SLDRF

– 12 –

L600

2.2µH

C608

1

TP615

C609

4.7

C408

IC403
TC7W14FU
INVERTER

R402

15K

1

R416

12K

10P(CH)

C409

R417

10K

C405

150P(CH)

8

7

R455
100K

R415

47K

KEY FLEXIBLE

39K

PWB

SW455

V.UP

R451

12K

SW454

10K

R424

6

5

R418

4 3 2 1

C406
680P

TP401

TP402

TP403

2

3

1

2

1

SW453

V.DOWN

TP404

4

4 3

STOP

R452

TP405

TP406

5

6

6

5

SW452

S.DOWN

10K

CN401

R454

22K

SW451

PLAY/S.UP

KEY SWITCH FLEXIBLE UNIT

10K

22K

TP205
TP204
TP203
TP206

TP220

L201

4.7µH

+2.5V

IC202

IX2567AF

4BIT D-RAM

I/O1

1

I/O2

2

WE

3

RAS

4

A9

5

A0

6

A1

7

A2

8

A3

9

VCC A4

10

TP202

C202

1

L202

1µH

MD-S301MK

MAIN PWB-A

L701

R713

161514 13

8

9

C701

1

C707

0.056
C706

3.3/6.3

C713

R711

82

10

0.22

R707

8.2

R714

8.2

R712

11

C702

27K

C714

0.22

82

R708

27K

12

1

C715

0.083

L-CH

R-CH

C716

0.083

D451

015Z5.1Y

C751

0.1

L751

4.7µH

L732

L731

L733

L736

L710

L734

TP728

TIPSOLID INDUCTI

R722

TP725

D702

015Z5.1Y

TP724

TP723
TP722
TP721
TP726

TP727

4
3
2
1
6
5
7
8

J701

REMOTE CONTROL/

HEADPHONES

L-CH
R-CH
AGND
DGND
KEY
PLAY
DATA
EL+B

47µH

R709

C711

R710

C703

1

C704

C705

0.01

24

22

23

AUDIO AMP.

1K

1K

1

R701
150K

19

20

21

IC702

IR3R54N

4 3 2 1

6

5

0.0022

L702
47µH

18

R702
330K

0.0022

7

C712

17

GND

20

I/O4

19

I/O3

18

CAS

17

OE

16

A8

15

A7

14

A6

13
12

A5

11

C504

10/6.3

C742

0.001

C741

0.01

+2.2V

IC501

UDA1320

D/A CONVERTER

-2.2V

VOUTR

BCK

1

VSSA

WS

2

VOUTL

DATA

3

VDDA

VDDD

4

VREFD

VSSD

5

MUTE

SYSCLK

6

DEEM

APSEL

7

SF0

SF1

8

TP501

L721

100µH

16

C502

15

10/6.3

14
13
12
11

C503

10

10/6.3

9

C508

L501
10µH

2.2

C501

10/6.3

TP701

C859

1

2.2

C507

L711

100µH

R501

R502

47/4.0

C732

47/4.0

5.6K

5.6K
R506

8.2K

C722

TP702

47/4.0

C731
47/4.0

R505

8.2K

C721

+2.5V

D841

1SS372

C846

C845

1

1

IC802

UMD3N

CONSTANT

C821

0.1

TP812

+2.5V

330K

C816

27P(CH)

6

5

EAOUT

GND

0.33

OUT

VCC

8

7

C838

R854
100K

100K

R870

R869
100K

Q861

2SC4738 GR

1

C864

1

R864
100K

R821

56K

R822

27K

C828

12P

4

5

(CH)

VCC

R824
390K

GND

2 1

3

IC833

TC7S66FU

ANALOG SWITCH

R842
100K

C837

180P(CH)

10K

R838

R840

4 3 2 1

+ –

EAIN+

EAIN–

++
–

PWM

OSC

STATE

ROSC

OSCOUT

11

10

9

C839

560P

15K

0.01

R843

C852

IC851

1

NDC631N

POWER DRIVE

1
2
3

D862

HZU2BLL

R868

C857

1M

10/10

1
2

R863

3

100K

C863

0.01

IC862

TC7SL32FU

START UP DRIVE

R823

C826

360K

DB

6
5
4

1

L824

10µH

D822

F1J2F

C827

10

R825

18K

R835
100K

R836

R839

100K

100K

33K

VREF

OSCIN

12

C840
390P

2.8V DC/DC CONVERTER
1

2
3

5

4

0.01

C836

IC832

C833

IR3M09N

0.01

POWER DRIVE

C830

L852

4.7µH

L851

10µH

C851

3.3

IC852

S8327B28

5

4

C862

R867

3.3

390K

R862
470K

D831

1

R861

C815

27P(CH)

6

GND

RB521S30

OUT

7

G
R851

100K

SB10015C

1K

R860
100K

START UP DRIVE

IC821

NDC631N

POWER DRIVE

1

6

2

5

4

3

C832

220P(CH)

5

4 3 2 1

EAOUT

EAIN–

EAIN+

++
–

PWM
STATE

VCC

10

8

9

R837

15K

D

Q852

2SJ305

S

D854

D

G

S

Q853

NDS335N

5

1
2

4

3

IC861

TC7SL32FU

ROSC

+
–

R833

33µH

C853

L822

4.7µH

L823

4.7µH
C824

3.3

D821

RB521S30

33K

10K

R831

DB

OSC

OSCOUT

11

12

C834

L853

1

C861

1

4
5
6

R832
100K

VREF

560P

OSCIN

C835
390P

R852

1K

3
2
1

IC831

L821
1µH

C822
33/10

0.01

C831

IR3M09N

POWER DRIVE

D2
D1
D0

SW401 HOLD

K406
K405
K404

413

S
DX
RX

9

R407

TP412

R409

22K

R401
330K

C403

0.047

100K

R412
150K

TP416
TP415

D402

1SS361

R403

TP408

10K

7SH86FU

REMOTE CONTROL

1
2

IC405

S80821LN

RESET

1

2

IC404

4

3

5

4 3

R871

Q871

2SA1745

1K

C871

0.47

L871

4.7

+2.5V

IC871

TK71325M

22K

R454

CN401

LE UNIT

SW451

PLAY/S.UP

POWER

SUPPLY

MICROCOMPUTER

+2.5V

C401
10/6.3

R865
100K

R866
100K

R421

1K

R422

1K

START UP DRIVE

TP811

C611

R847
220K

C842

56P(CH)

R845
240K

R844
270K

D856

C858

10

C856

D857

RB491D

1

2

3

4

5

D861

1SS393

1

5
2
3

4

IC863

TC7SL00FU

L102

10µH

C151

68/10

L611
1µH

1

C855
L854

F1J2F

10µH

1

RB521S30

3 2 1

R846

C841

1

D855

C865

CURRENT DRIVE

6

1

1

C823

R814
100K

R819
100K

Q812

DTC144 EE

Q851

G

2SJ305

D S

D814

RB521S30

D852

1SS372

IC815

RN4986

CHARGE DRIVE

D802

015Z5.1Y

2.7K

R801

CURRENT DRIVE
R803

4

5

3.9K

2

3

R804

1.2K

D812

SB10015C

IC812

HAT1025R

8

1
2

7
6

3

4

5

CONSTANT

CURRENT DRIVE

D813

SB10015C

Q811

DTC144 EE

POWER SELECT

CHARGE DRIVE

D851

RB521S30

C813

1

TP805

IC801

HN1C03FU

CONSTANT

1
2
3

6

1
2

5
4

3

IC814

RN4904

C801

1

R802

3.3K

D803

6
5

R805

4

10K

R806

D811

SB10015C

8

6

7

1

2

3

R813
100K

C812

0.1

270

TP803

1
2

TP112

3

RB521S30

TP806

R811

1K

5

R812

22K

4

C811

IC811

1

NDH831N

CONSTANT

CURRENT DRIVE

TP801

R817
470K

R818
560K

TP802

J801

DC JACK

TP804

Q801

2SD1950

TP871

TP872

+

EX

BATTERY,

–

EX

BATTERY

+

CHARGE

–

CHARGE

+

,–

,+

,–

• The numbers 1 to 17 are waveform numbers shown in page 31 of MD-S301.

7

8 9 10 11 12

Figure 13 SCHEMATIC DIAGRAM (2/2)

– 13 –

MD-S301MK

A

B

C

9

R501

R502

D

R506

8

17

E

36

F

G

118

R601

R868
R869

D854

L853

C503

R505

C502

C611

L611C622

L609

3035 25 20

IC601

5

Q853

C609

L601

C601

L702

10

C507

C508

R870

IC871

9

16

C608

L608

C602

L701

IC852

D862

13

C857

R702

10

15

15

L602

C603

C853

C401

5

IC501

L600

C600

19

C604

45

C731

L603

L501

Q861

8

1

D402

R420

C504

C408

R419

C204

C856

C855

C858

L604

C706

R232
R231

C741

C501

C203

C732

76

100

C231

J701

REMOTE CONTROL/

HEADPHONES

J701

C722

D857

C721

L721

L851

R222

65 60

L101

L854

XL201

C211

C212

55

R113

R114

C101

C151

D856

L201

75

R233

C851

C201

80

85

90

95

1

LED401

L711

L852

70

IC201

51015

C121

C122

C123

C124

L102

D822

20

R825

R112

C109

1

3

C106

L824

IC833

51

45

40

35

30

25

R806

1

6

4

IC802

C822

L822

L823

C824

C813

5

4

50

10 11

C202

26

R111

37

C107

48

C110

C111

L821

C827

Q801

C841

1

5

6

L202

C407

3035

40

IC101

45

510

112

C112

C103

C102

C801

C104

R802

R871

IC202

2536

20

15

C161

R101

R803

R805

D813

24

13

D803

J801

6

Q871

Q101

C871

26

16

15

C113R154

R801

334

IC801

1

R804

D802

J801

DC JACK

1

MAIN PWB-A(BOTTOM VIEW)

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

H

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

• : Through-hole where the top and bottom patterns are connected.

• The numbers 1 to 17 are waveform numbers shown in page 31 of MD-S301.

1

23456

Figure 14 WIRING OF P.W.BOARD (1/3)

– 14 –

IC401

R430

R434

1

45

8

R435

R433

R431

R102

R414

R403

R407

R916

IC913

Q903

R413

Q902

Q901

R911

IC911

R913

R912

1

3

4

6

1

3

4

6

1

3

4

6

IC912

R915 R914

C903

R903

R908

R907

R905

R906

Q904

Q905

Q906

R405

R418

C406

IC403

R411

R204

R417

R416

R423

1

25

26

30354045

50

51

55

60

65

70

75

76 100

80 85 90 95

5

10

15

20

C165

R161

IC404

R409

C823

C812

R818

R817

C821

R822

R821

R844

C831

R832

R835

R823

C836

C828

R839

R842

R847

C842

R845

R408

R412

C815

R838

R840

C837

C816

R824

R831

R833

C830 C826

C403

1

45

8

IC405

R865

R424

R866

R402

C859

1

5

10

12

13

24

15

20

C701

R707

C707

R708

C702

C405

C742

R415

R401

R422

R862

1

3

1

3

4

4

455

4
5

1

3

4
5

1

2

4

3

R864

C864

R452

R455

R451

R454

R860
R867

R861

R863

C863

IC862

IC861

IC863

IC815

C852

C409

R909

C902

C909

C910

C908

R701

C705

C704C703

R709

R710

C713

C714

R711

R712

C711
C712

R714

L751

R852

C861

C862

D861

C838

D855

R843

C839

R851

R732

R731

R722

C715

C716

D702

IC851

D821

R836

D451

L710

L734

L733

Q851

L871

C846

C845

IC821

D841

D812

C833

R837C835

C834

1

1

1

4

8

5

1

13

3

6

6

6

7

7

12

12

C840

D831

Q852

C865

D852

R854

C751

L736

R421

R713

D811

1

4

5

6

IC814

R813

Q812

113

3

1

3

4

4

6

6

4

6

Q811

R812

C811

R819

R814

D851

D814

R811

R846

C832

SW401

CN401

CN601

CN101

IC702

IC402

IC901

IC831

IC832

IC812

IC811

C911

C905
C906
C907
R904
R902
R901

1

10

11

15

20

5

KEY SWITCH

FLEXIBLE UNIT

BATTERY,–

(206)

PICKUP

FLEXIBLE PWB

MECHANISM

FLEXIBLE PWB

SW401

HOLD

MAIN PWB-A(TOP VIEW)

BATTERY,+

(207)

EXT.BATTERY

(220)

2

3

4

5

7

6

12
13

14

15

11

10

16

TP433

TP102

TP103

TP100

TP101

TP144

TP105

TP120

TP118

TP117

TP121

TP122

TP119

TP811

TP115

TP113

TP116

TP114

TP111

TP109

TP436

TP602

TP610

TP612

TP613

TP603

TP408

TP871

TP609

TP607

TP615

TP606

TP608

TP617

TP611

TP139

TP604

TP201

TP410

TP614

TP616

TP110

TP418

TP605

TP601

TP417 TP133

TP131

TP202

TP435

TP132

TP434

TP130

TP414

TP108

TP413

TP205

TP206

TP203

TP419

TP415

TP409

TP416

TP805

TP411

TP204

TP219

TP404

TP209

TP210

TP208

TP220

TP218

TP501

TP702

TP422

TP701

TP402

TP872

TP802

TP421

TP106

TP403

TP406

TP401

TP405

TP812

TP725

TP112

TP412

TP801

TP724

TP803

TP728

TP727

TP804

TP145

TP722

TP721

TP806

TP726

TP723

1

13

CK108

1

22

P16 5 - C

P16 5 - H

P16 3 - E

7

Figure 15 WIRING OF P.W.BOARD (2/3)

8 9 10 11 12

– 15 –

MD-S301MK

MD-S301MK

A

SPINDLE MOTOR

B

C

D

M901

SW901

DISC IN

MECHANISM
FLEXIBLE PWB

M902

SLED MOTOR

P15 10 - A

TO MAIN PWB

CN401

VOLUME

UP

SW455

E

CN601

REW

SW452

P15 10 - G

TO MAIN PWB

SW451

SW454

PICKUP UNIT (15)

VOLUME

DOWN

SW453

PLAY/FF

:OFF

F

STOP

KEY SWITCH

FLEXBLE UNIT(221-9)

G

FLEXIBLE

PWB

P15 8 - G

CN101

TO MAIN PWB

H

1

23456

Figure 16 WIRING OF P.W.BOARD (3/3)

– 16 –

VOL TAGE

MD-S301MK

PIN
NO.

1
2
3
4
5
6
7
8

9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48

IC101

VOLTAGE

0.71V

0.71V

0.71V

0.71V

1.27V

1.27V

0.71V

1.27V

1.28V

1.28V

1.27V

1.27V

2.53V

2.53V
0V

2.53V

2.53V
0V
0V

1.48V

2.51V
0V
0V

2.53V

1.27V

1.27V

1.28V

1.28V

1.27V

1.39V

1.27V

1.27V

1.28V
0V

1.27V
0V
0V

1.27V

1.27V

1.28V

1.27V

2.53V
0V
0V

1.27V
0V

1.27V
0V

PIN
NO.

1
2
3
4
5
6
7
8

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

VOLTAGE

0.94V

2.53V

1.28V
0V

1.27V

1.27V

1.27V

1.27V

1.27V

2.22V

1.38V

2.03V
0V
0V
0V
0V
1V
0V
0V
0V
0V
0V
0V
0V
0V

0.5V

0.6V

0.58V

1.4V

0.92V

2.54V

0.6V

0.99V

0.99V

0.81V

0.8V

1.82V
0V

2.07V

1.62V

1.67V

0.92V

1.74V

2.53V

1.7V

1.52V
0V

1.94V
1V

0.92V

IC201

PIN
NO.

100

51
52
53
54
55
56
57
58
59
60
61
62
63

64
65
66
67
68

69

70

71

72

73

74

75

76

77

78

79

80

81

82

83

84

85

86

87

88

89

90

91

92

93

94

95

96

97

98

99

VOLTAGE

1.01V
0V
0V
0V
0V
0V
0V
0V
0V
0V
0V

2.03V
0V

0.9V

0.8V
0V
0V

2.02V
0V
1V
1V
1V
0V
0V
1V
1V
1V

2.02V
0V

2.02V
1V

2.02V
0V
0V
1V

2.02V

2.02V
0V

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

2.51V

2.5V
0V

PIN
NO.

10
11
12
13
14
15
16
17
18
19
20

1
2
3
4
5
6
7
8
9

IC202

VOLTAGE

0V
0V

2.41V
0V

1.13V

1.4V

0.58V

0.6V

0.6V

2.54V

0.62V

0.8V

0.8V

0.8V

0.8V

1.82V

1.96V

1.3V

1.7V
0V

PIN
NO.

1
2
3
4
5
6
7
8

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

VOLTAGE

2.52V
0V

2.51V
0V

2.51V
0V

2.51V
0V

2.52V

1.383V

1.252V
0V

1.481V

1.19V

2.44V

2.02V
0V

2.02V

2.51V
0V

2.52V
0V

2.52V

2.52V
0V

1.69V

0.68V

2.28V

2.51V

2.28V

1.48V

2.51V
0V
0V
0V

2.52V

2.51V

2.51V
0V

2.51V

0.27V

2.25V

2.49V

2.51V
0V
0V
0V
0V
0V
0V

IC401

PIN
NO.

100

51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99

VOLTAGE

0V
0V
0V
0V
0V

2.51V

2.51V
0V
0V
0V
0V

2.51V
0V
0V

2.51V

2.4V

2.51V
0V
0V
0V
0V
0V
0V

2.46V
0V

2.49V
0V
0V
0V
0V

2.52V

2.52V

1.26V

2.51V
0V

2.52V
0V
0V

1.26V

1.77V
0V

2.51V

2.52V
0V
0V

1.25V

2.51V

0.43V
0V

0.31V

PIN
NO.

PIN
NO.

PIN
NO.

1
2
3
4
5
6
7
8

1
2
3
4
5
6
7
8

1
2
3
4
5

IC402

VOLTAGE

0V
0V
0V
0V
0V

2.52V
0V

2.52V

IC403

VOLTAGE

1.2V

1.26V

1.19V
0V

1.19V

1.25V

1.25V

2.52V

IC404

VOLTAGE

0V

2.51V
0V

2.2V

2.52V

PIN
NO.

1
2
3
4
5
6
7
8

9
10
11
12
13
14
15
16

IC501

VOLTAGE

0V
1V
0V

2.54V
0V

0.99V

2.54V

2.54V

2.54V
0V
0V

1.26V

2.54V

1.25V
0V

1.25V

PIN
NO.

1
2
3
4
5
6
7
8

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

IC601

VOLTAGE

0V
1V

2.5V
0V

4.78V
0V
0V
0V

4.78V

4.71V
0V
0V
0V

4.71V
0V
0V
0V
0V
0V
0V
0V
0V

4.73V
0V
0V
0V
0V

4.69V

4.69V

2.8V
0V

4.7V
0V
0V

2.54V

9.8V

PIN
NO.

1
2
3
4
5
6
7
8

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

IC701

VOLTAGE

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

0.94V
0V
0V
0V
0V

2.51V
0V
0V
0V
–2.26V
0V
0V

2.03V

0.77V
0V
0V
0V

PIN
NO.

PIN
NO.

PIN
NO.

1
2
3
4

5
6
7
8

1
2
3
4
5
6
7
8

1
2
3
4
5
6

IC811

VOLTAGE

4.75V

4.75V

4.74V
0V

0.69V

4.77V

4.74V

0.7V

IC812

VOLTAGE

4.82V
0V

4.83V
0V

4.86V

4.83V

4.84V

4.75V

IC814

VOLTAGE

7.6V

7.5V

7.5V
0V
0V
0V

PIN
NO.

PIN
NO.

1
2
3
4
5
6

1
2
3
4
5
6

IC815

VOLTAGE

0V
0V
0V

0.7V

0.7V
0V

IC821

VOLTAGE

4.7V

4.7V
0V
0V

4.7V
0V

PIN
NO.

PIN
NO.

12

1
2
3
4
5
6
7
8

9
10
11
12

1

2

3

4

5

6

7

8

9
10
11

IC831

VOLTAGE

1.26V

0.94V

1.32V

1.29V

1.16V
0V

0.24V

4.98V
0V

0.4V
1V
1V

IC832

VOLTAGE

120V

0.94V

1.32V

1.29V

1.16V
0V

0.21V

4.78V
0V

0.4V
1V
1V

PIN
NO.

1
2
3
4
5
6

PIN
NO.

1
2
3
4
5

PIN
NO.

1
2
3
4
5

– 17 –

IC851

VOLTAGE

4.7V

4.7V
0V
0V

4.7V
0V

IC852

VOLTAGE

0.66V

4.65V
0V
0V
0V

IC861

VOLTAGE

0V

1.32V
0V

0.73V

0.73V

PIN
NO.

PIN
NO.

PIN
NO.

1
2
3
4
5

1
2
3
4
5

1
2
3
4
5

IC862

VOLTAGE

0.74V
0V
0V

0.74V

0.74V

IC863

VOLTAGE

2.46V

2.26V
0V

2.44V

2.48V

IC871

VOLTAGE

0V
0V
0V

2.51V

4.69V

PIN
NO.

10
11
12
13
14
15
16
17
18
19
20

1
2
3
4
5
6
7
8
9

IC901

VOLTAGE

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

0.6~1V

2.47V

1.89,2.16V
0V

2.51V

0.69V
0V

2.5V
0V

2.52V
0V
0V
0V
0V

PIN
NO.

PIN
NO.

PIN
NO.

1
2
3
4
5
6

1
2
3
4
5
6

1
2
3
4
5
6

IC911

VOLTAGE

9.74V

9.67V

9.67V
0V
0V
0V

IC912

VOLTAGE

9.74V

9.67V

9.67V
0V
0V
0V

IC913

VOLTAGE

9.74V

9.67V

9.67V
0V
0V
0V

MD-S301MK

NOTES ON SCHEMATIC DIAGRAM

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

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

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

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

• The wiring diagram and the PWB drawing may be changed
to refect improvements in the design without prior notice.
They may differ a little the unit you have.

REF. NO

SW401 HOLD OFF—ON
SW451 PLAY/FF OFF—ON
SW452 REW OFF—ON
SW453 STOP OFF—ON
SW454 VOLUME DOWN OFF—ON
SW455 VOLUME UP OFF—ON
SW901 DISC IN OFF—ON

DESCRIPTION

POSITION

TOP VIEW

B

(G)

(3)

E

TOP

VIEW

C
(D)
(2)

(S)

1

F1J2F
2SA1745
2SC4738 GR
2SJ305
DTC144 EE
NDS355 AN
NDS335 N

TOP VIEW

015Z5.1Y
RB521S30
HZU2BLL

FRONT

VIEW

BEC

2SD19502SA17457

TOP VIEW

CL200HRC

TOP VIEW

1SS372

TOP VIEW

RB491D
SB10015C

Figure 18 TYPES OF TRANSISTOR AND LED

– 18 –

TOP VIEW

1SS361
1SS393

PARTS GUIDE

MD-S301MK

“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%.

MODEL

Contact your nearest SHARP Parts Distributor to order.

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

MD-S301MK

For U.S.A. only

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.

– 19 –

MD-S301MK

NO.

PART CODE

PRICE

RANK

DESCRIPTION

INTEGRATED CIRCUITS

IC101 VHIIR3R55//-1 J AQ RF Signal,Processor,IR3R55
IC201 VHILR376481-1 J BD ENDEC,LR376481
IC202 RH-IX2567AFZZ J BA 4Mbit D-RAM,IX2567AF
IC401 RH-IX2677AF03 J AX System Microcomputer,

IC402 VHIS29L294A-1 J AH EE-PROM,S29L294A
IC403 VHITC7W14FU-1 J AF Inverter,TC7W14FU
IC404 VHI7SH86FU/-1 J AE Remote Control Driver,7SH86FU
IC405 VHIS80821LN-1 J AE Reset,S80821LN
IC501 VHIUDA1320/-1 J AM D/A Converter,UDA1320
IC601 VHIMPC17A39-1 J AQ Pickup Coil Driver,MPC17A39
IC702 VHIIR3R54N/-1 J AQ Audio Amp.,IR3R54N
IC801 VHIHN1C03FU-1 J AD Constant Current Drive,

IC802 VHIUMD3N///-1 J AC Constant Current Drive,UMD3N
IC811 VHINDH831N/-1 J AH Constant Current Drive,

IC812 VHIHAT1025R-1 J AK Constant Current Drive,
IC814 VHIRN4904//-1 J AD Power Select Charge Drive,
IC815 VHIRN4986//-1 J AD Charge Drive,RN4986

IC821 VHINDC631N/-1 J AG Power Drive,NDC631N
IC831,832 VHIIR3M09N/-1 J AL Power Drive,IR3M09N
IC833 VHITC7S66FU-1 J AD Analog Switch,TC7S66FU
IC851 VHINDC631N/-1 J AG Power Drive,NDC631N
IC852 VHIS8327B28-1 J AG 2.8V DC/DC Converter,

IC861,862 VHI7SL32FU/-1 J AE Start Up Drive,TC7SL32FU
IC863 VHI7SL00FU/-1 J AE Start Up Drive,TC7SL00FU
IC871 VHITK71325M-1 J AE Power Supply Microcomputer,

IC901 VHIBA6965FV-1 J AN 3-Phase Brush Leess Driver,
IC911~913 VHIRN4904//-1 J AD Power Select Charge Drive,

IX2677AF

HN1C03FU

NDH831N
HAT1025R
RN4904

S8327B28

TK71325M
BA6965FV
RN4904

TRANSISTORS

Q101 VS2SA17457/-1 J AB Silicon,PNP,2SA17457
Q801 VS2SD1950//-1 J AD Silicon,NPN,2SD1950
Q811,812 VSDTC144EE/-1 J AB Digital,NPN,DTC144 EE
Q851,852 VS2SJ305///-1 J AF FET,2SJ305
Q853 VHINDS335N/-1 J AF N Channel,Power Drive,

Q861 VS2SC4738GR-1 J AC Silicon,NPN,2SC4738 GR
Q871 VS2SA1745//-1 J AC Silicon,PNP,2SA1745
Q901~903 VHINDS355AN-1 J AE N Channel,FET,NDS355AN
Q904~906 VHINDS335N/-1 J AF N Channel,Power Drive,

NDS335N

NDS335N

DIODES

D402 VHD1SS361//-1 J AB Silicon,1SS361
D451 VHE015Z5R1Y-1 J AD Zener,5.1V,015Z5.1Y
D702 VHE015Z5R1Y-1 J AD Zener,5.1V,015Z5.1Y
D802 VHE015Z5R1Y-1 J AD Zener,5.1V,015Z5.1Y
D803 VHDRB521S30-1 J AC Silicon,RB521S30
D811~813 VHDSB10015C-1 J AD Silicon,SB10015C
D814 VHDRB521S30-1 J AC Silicon,RB521S30
D821 VHDRB521S30-1 J AC Silicon,RB521S30
D822 VHDF1J2F///-1 J AE Silicon,F1J2F
D831 VHDRB521S30-1 J AC Silicon,RB521S30
D841 VHD1SS372//-1 J AD Silicon,1SS372
D851 VHDRB521S30-1 J AC Silicon,RB521S30
D852 VHD1SS372//-1 J AD Silicon,1SS372
D854 VHDSB10015C-1 J AD Silicon,SB10015C
D855 VHDRB521S30-1 J AC Silicon,RB521S30
D856 VHDF1J2F///-1 J AE Silicon,F1J2F
D857 VHDRB491D//-1 J AD Silicon,RB491D
D861 VHD1SS393//-1 J AC Silicon,1SS393
D862 VHEHZU2BLL/-1 J AD Zener,HZU2BLL
LED401 VHPCL200HRC-1 J AD LED,Red,CL200HRC
PH901(8-3) VHPGP1S93K/-1 J AF Phote Interrupter,GP1S93K

COILS

L101 VPBNN100M0000 J AC 10 µH
L102 RCILC0333AFZZ J AC 10 µH,Choke
L201 VPBNN4R7M0000 J AC 4.7 µH

NO. PARTS CODE

L202 VPBNN1R0M0000 J AC 1 µH
L501 RCILC0333AFZZ J AC 10 µH,Choke
L600 RCILC0331AFZZ J AC 2.2 µH,Choke
L601~604 RCILR0559AFZZ J AC 47 µH
L608 RCILR0559AFZZ J AC 47 µH
L609 RCILC0333AFZZ J AC 10 µH,Choke
L611 VPBNN1R0M0000 J AC 1 µH
L701,702 RCILC0344AFZZ J AC Choke
L710 RCILC0290AFZZ J AC Tip Solid Induction,200mA
L711 RCILC0246AFZZ J AC 100 µH,Choke
L721 RCILC0246AFZZ J AC 100 µH,Choke
L731,732 RCILC0353AFZZ J AB Tip Solid Induction,100mA
L733 RCILC0352AFZZ J AB Tip Impeder,150mA
L734 RCILC0290AFZZ J AC Tip Solid Induction,200mA
L736 RCILC0290AFZZ J AC Tip Solid Induction,200mA
L751 VPBNN4R7M0000 J AC 4.7 µH
L821 RCILC0330AFZZ J AC 1 µH,Choke
L822,823 RCILC0332AFZZ J AC 4.7 µH,Choke
L824 RCILC0333AFZZ J AC 10 µH,Choke
L851 RCILC0333AFZZ J AC 10 µH,Choke
L852 RCILC0332AFZZ J AC 4.7 µH,Choke
L853 RCILC0348AFZZ J AE 33 µH,Choke
L854 RCILC0333AFZZ J AC 10 µH,Choke
L871 VRS-TV2AB4R7J J AA 4.7 ohms,1/10W

PRICE

RANK

DESCRIPTION

VIBRATOR

XL201 RCRSC0021AFZZ J AG Crystal,33.8688 MHz

CAPACITORS

C101 VCSAFA0JJ106M J AD 10 µF,6.3V,Electrolytic,Tantalum
C102,103 RC-KZ1193AFZZ J AC 1 µF,6.3V
C104 VCKYTV1EB273K J AB 0.027 µF,25V
C106 RC-KZ1204AFZZ J AB 0.22 µF,10V
C107 VCKYCY1EB123K J AA 0.012 µF,25V
C109 RC-KZ1181AFZZ J AE 4.7 µF,10V
C110 RC-KZ1204AFZZ J AB 0.22 µF,10V
C111 VCKYCY1HB332K J AA 0.0033 µF,50V
C112 VCKYCY1CB333K J AA 0.033 µF,16V
C113 VCKYCY1CB104K J AB 0.1 µF,16V
C121,122 VCCCCY1HH271J J AA 270 pF (CH),50V
C123,124 VCCSCY1HL391J J AA 390 pF,50V
C151 VCSAPM1AJ686M J AH 68 µF,10V,Electrolytic,Tantalume
C161 RC-KZ1193AFZZ J AC 1 µF,6.3V
C165 VCKYCY1CB333K J AA 0.033 µF,16V
C201 RC-KZ1171AFZZ J AC 1 µF,16V
C202 VCKYTV1CF105Z J AB 1 µF,16V
C203,204 VCKYCY1CB104K J AB 0.1 µF,16V
C211,212 VCCCCY1HH5R0C J AA 5 pF (CH),50V
C222 VCCCCY1HH220J J AA 22 pF (CH),50V
C231 VCKYCY1CB104K J AB 0.1 µF,16V
C401 VCSAFA0JJ106M J AD 10 µF,6.3V,Electrolytic,Tantalum
C403 VCKYCY1CB473K J AA 0.047 µF,16V
C405 VCCCCY1HH151J J AA 150 pF (CH),50V
C406 VCKYCY1HB681K J AA 680 pF,50V
C407,408 VCKYTV1CF105Z J AB 1 µF,16V
C409 VCCCCY1HH100D J AA 10 pF (CH),50V
C501~504 VCSAFA0JJ106M J AD 10 µF,6.3V,Electrolytic,Tantalum
C507,508 RC-KZ1185AFZZ J AD 2.2 µF,10V
C600 VCSAFB1AJ156M J AE 15 µF,10V,Electrolytic,Tantalum
C601~604 RC-KZ1193AFZZ J AC 1 µF,6.3V
C608 RC-KZ1171AFZZ J AC 1 µF,16V
C609 RC-KZ1181AFZZ J AE 4.7 µF,10V
C611 RC-KZ1183AFZZ J AC 1 µF,10V
C622 VCKYTV1CB104K J AA 0.1 µF,16V
C701,702 VCKYTV1CF105Z J AB 1 µF,16V
C703,704 RC-KZ1193AFZZ J AC 1 µF,6.3V
C705 VCKYCY1EB103K J AA 0.01 µF,25V
C706 VCSAFA0JJ335M J AD 3.3 µF,6.3V,Electrolytic,Tantalum
C707 VCKYCY1CB563K J AB 0.056 µF,16V
C711,712 VCKYCY1HB222K J AA 0.0022 µF,50V
C713,714 RC-KZ1204AFZZ J AB 0.22 µF,10V
C715,716 VCKYCY1CB823K J AB 0.082 µF,16V
C721,722 VCSAFE0GJ476M J AE 47 µF, 4.0V,Electrolytic,

C731,732 VCSAFE0GJ476M J AE 47 µF, 4.0V,Electrolytic,
C741 VCKYCY1EB103K J AA 0.01 µF,25V

C742 VCKYCY1HB102K J AA 1000 pF,50V
C751 VCKYCY1CB104K J AB 0.1 µF,16V
C801 RC-KZ1183AFZZ J AC 1 µF,10V

Tantalume
Tantalume

– 1 –

MD-S301MK

NO. PART CODE

C811 RC-KZ1168AFZZ J AC 1 µF,10V
C812 VCKYCY1CB104K J AB 0.1 µF,16V
C813 RC-KZ1183AFZZ J AC 1 µF,10V
C815,816 VCCCCY1HH270J J AA 27 pF (CH),50V
C821 VCKYCY1CB104K J AB 0.1 µF,16V
C822 VCEAPS336AF1A J AC 33 µF,10V,Electrolytic
C823 RC-KZ1193AFZZ J AC 1 µF,6.3V
C824 RC-KZ1186AFZZ J AD 3.3 µF,10V
C826 RC-KZ1183AFZZ J AC 1 µF,10V
C827 RC-KZ1290AFZZ J AG 10 µF,10V
C828 VCCCCY1HH120J J AA 12 pF (CH),50V
C830 RC-KZ1193AFZZ J AC 1 µF,6.3V
C831 VCKYCY1EB103K J AA 0.01 µF,25V
C832 VCCCCY1HH221J J AA 220 pF (CH),50V
C833 VCKYCY1EB103K J AA 0.01 µF,25V
C834 VCCSCY1HL561J J AA 560 pF,50V
C835 VCCSCY1HL391J J AA 390 pF,50V
C836 VCKYCY1EB103K J AA 0.01 µF,25V
C837 VCCCCY1HH181J J AA 180 pF (CH),50V
C838 VCKYCY1EB103K J AA 0.01 µF,25V
C839 VCCSCY1HL561J J AA 560 pF,50V
C840 VCCSCY1HL391J J AA 390 pF,50V
C841 RC-KZ1205AFZZ J AB 0.33 µF,10V
C842 VCCCCY1HH560J J AA 56 pF (CH),50V
C845,846 RC-KZ1168AFZZ J AC 1 µF,10V
C851 RC-KZ1186AFZZ J AD 3.3 µF,10V
C852 RC-KZ1193AFZZ J AC 1 µF,6.3V
C853 RC-KZ1183AFZZ J AC 1 µF,10V
C855,856 RC-KZ1193AFZZ J AC 1 µF,6.3V
C857 VCSAFA1AJ106M J AD 10 µF,10V,Electrolytic,Tantalum
C858 RC-KZ1290AFZZ J AG 10 µF,10V
C859 RC-KZ1193AFZZ J AC 1 µF,6.3V
C861 RC-KZ1193AFZZ J AC 1 µF,6.3V
C862 RC-KZ1186AFZZ J AD 3.3 µF,10V
C863 VCKYCY1EB103K J AA 0.01 µF,25V
C864,865 RC-KZ1193AFZZ J AC 1 µF,6.3V
C871 RC-KZ1206AFZZ J AC 0.47 µF,10V
C902 VCKYCY1EB103K J AA 0.01 µF,25V
C903 RC-KZ1193AFZZ J AC 1 µF,6.3V
C905~907 VCKYCY1HB222K J AA 0.0022 µF,50V
C908 RC-KZ1206AFZZ J AC 0.47 µF,10V
C909,910 VCKYCY1CB473K J AA 0.047 µF,16V
C911 VCKYCY1CB104K J AB 0.1 µF,16V

PRICE
RANK

DESCRIPTION

RESISTORS

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

VRS-TV2AB000J J AA 0 ohm,Jumper,1.25× 2mm,Green
R101 VRS-CY1JB394J J AA 390 kohms,1/16W
R102 VRS-CY1JB563J J AA 56 kohms,1/16W
R111~114 VRS-CY1JB223J J AA 22 kohms,1/16W
R154 VRS-CY1JB122J J AA 1.2 kohms,1/16W
R161 VRS-CY1JB122J J AA 1.2 kohms,1/16W
R204 VRS-CY1JB102J J AA 1 kohm,1/16W
R222 VRS-CY1JB105J J AA 1 Mohm,1/16W
R231 VRS-CY1JB823D J AA 82 kohms,1/16W
R232 VRS-CY1JB623F J AA 62 kohms,1/16W
R233 VRS-CY1JB274F J AA 270 kohms,1/16W
R401 VRS-CY1JB334J J AA 330 kohms,1/16W
R402 VRS-CY1JB153J J AA 15 kohms,1/16W
R403 VRS-CY1JB103J J AA 10 kohm,1/16W
R405 VRS-CY1JB104J J AA 100 kohm,1/16W
R407 VRS-CY1JB104J J AA 100 kohm,1/16W
R408,409 VRS-CY1JB223J J AA 22 kohms,1/16W
R411 VRS-CY1JB104J J AA 100 kohm,1/16W
R412 VRS-CY1JB154J J AA 150 kohms,1/16W
R413 VRS-CY1JB102J J AA 1 kohm,1/16W
R414 VRS-CY1JB223J J AA 22 kohms,1/16W
R415 VRS-CY1JB473J J AA 47 kohms,1/16W
R416 VRS-CY1JB123J J AA 12 kohms,1/16W
R417 VRS-CY1JB103J J AA 10 kohm,1/16W
R418 VRS-CY1JB393J J AA 39 kohms,1/16W
R419 VRS-CY1JB104J J AA 100 kohm,1/16W
R420 VRS-CY1JB331J J AA 330 ohms,1/16W
R421~423 VRS-CY1JB102J J AA 1 kohm,1/16W
R424 VRS-CY1JB103J J AA 10 kohm,1/16W
R430 VRS-CY1JB103J J AA 10 kohm,1/16W
R431 VRS-CY1JB104J J AA 100 kohm,1/16W
R433~435 VRS-CY1JB102J J AA 1 kohm,1/16W
R451 VRS-CY1JB123J J AA 12 kohms,1/16W
R452 VRS-CY1JB103J J AA 10 kohm,1/16W

Green

NO.

R454 VRS-CY1JB223J J AA 22 kohms,1/16W
R455 VRS-CY1JB104J J AA 100 kohm,1/16W
R501,502 VRS-CY1JB562J J AA 5.6 kohms,1/16W
R505,506 VRS-CY1JB822J J AA 8.2 kohms,1/16W
R601 VRS-CY1JB563J J AA 56 kohms,1/16W
R701 VRS-CY1JB154J J AA 150 kohms,1/16W
R702 VRS-CY1JB334J J AA 330 kohms,1/16W
R707,708 VRS-CY1JB273J J AA 27 kohms,1/16W
R709,710 VRS-CY1JB102J J AA 1 kohm,1/16W
R711,712 VRS-CY1JB820J J AA 82 ohms,1/16W
R713,714 VRS-CY1JB8R2J J AA 8.2 ohms,1/16W
R722 RCILC0290AFZZ J AC Tip Solid Induction,200mA
R801 VRS-CY1JB272D J AA 2.7 kohms,1/16W
R802 VRS-TV2AB332J J AA 3.3 kohms,1/10W
R803 VRS-CY1JB392D J AA 3.9 kohms,1/16W
R804 VRS-CY1JB122D J AA 1.2 kohms,1/16W
R805 VRS-CY1JB103J J AA 10 kohm,1/16W
R806 VRS-CY1JB271J J AA 270 ohms,1/16W
R811 VRS-CY1JB102D J AA 1 kohm,1/16W
R812 VRS-CY1JB223D J AA 22 kohms,1/16W
R813,814 VRS-CY1JB104J J AA 100 kohm,1/16W
R817 VRS-CY1JB474D J AA 470 kohms,1/16W
R818 VRS-CY1JB564D J AA 560 kohms,1/16W
R819 VRS-CY1JB104J J AA 100 kohm,1/16W
R821 VRS-CY1JB563D J AA 56 kohms,1/16W
R822 VRS-CY1JB273D J AA 27 kohms,1/16W
R823 VRS-CY1JB364D J AA 360 kohms,1/16W
R824 VRS-CY1JB394D J AA 390 kohms,1/16W
R825 VRS-CY1JB183J J AA 18 kohms,1/16W
R831 VRS-CY1JB333J J AA 33 kohms,1/16W
R832 VRS-CY1JB104J J AA 100 kohm,1/16W
R833 VRS-CY1JB103J J AA 10 kohm,1/16W
R835,836 VRS-CY1JB104J J AA 100 kohm,1/16W
R837 VRS-CY1JB153D J AA 15 kohms,1/16W
R838 VRS-CY1JB333J J AA 33 kohms,1/16W
R839 VRS-CY1JB104J J AA 100 kohm,1/16W
R840 VRS-CY1JB103J J AA 10 kohm,1/16W
R842 VRS-CY1JB104J J AA 100 kohm,1/16W
R843 VRS-CY1JB153D J AA 15 kohms,1/16W
R844 VRS-CY1JB274D J AA 270 kohms,1/16W
R845 VRS-CY1JB244D J AA 240 kohms,1/16W
R846 VRS-CY1JB334D J AA 330 kohms,1/16W
R847 VRS-CY1JB224D J AA 220 kohms,1/16W
R851 VRS-CY1JB104J J AA 100 kohm,1/16W
R852 VRS-CY1JB102J J AA 1 kohm,1/16W
R854 VRS-CY1JB104J J AA 100 kohm,1/16W
R860 VRS-CY1JB104J J AA 100 kohm,1/16W
R861 VRS-CY1JB102J J AA 1 kohm,1/16W
R862 VRS-CY1JB474J J AA 470 kohms,1/16W
R863~866 VRS-CY1JB104J J AA 100 kohm,1/16W
R867 VRS-CY1JB394J J AA 390 kohms,1/16W
R868 VRS-CY1JB105J J AA 1 Mohm,1/16W
R869,870 VRS-CY1JB104J J AA 100 kohm,1/16W
R871 VRS-CY1JB102J J AA 1 kohm,1/16W
R901,902 VRS-CY1JB1R0J J AA 1 ohm,1/16W
R903 VRS-CY1JB151J J AA 150 ohms,1/16W
R904 VRS-CY1JB223J J AA 22 kohms,1/16W
R905 VRS-CY1JB104J J AA 100 kohm,1/16W
R906 VRS-CY1JB274J J AA 270 kohms,1/16W
R907 VRS-CY1JB154J J AA 150 kohms,1/16W
R908 VRS-CY1JB104J J AA 100 kohm,1/16W
R909 VRS-CY1JB103J J AA 10 kohm,1/16W
R911~916 VRS-CY1JB104J J AA 100 kohm,1/16W

PRICE

RANK

DESCRIPTIONPARTS CODE

OTHER CIRCUITRY PARTS

CN101 QCNCW801XAFZZ J AH Socket,22Pin
CN401 QCNCW801FAFZZ J AE Socket,6Pin
CN601 QCNCW818NAFZZ J AG Socket,13Pin
J701 QJAKM0201AFZZ J AH Jack,Remote Control/Head-

J801 QJAKC0136AFZZ J AD Jack,DC
M901 RMOTV0500AFZZ J AT Spindle Motor Ass’y
M902 RMOTS0104AFZZ J AR Sled Motor Ass’y
SW401 QSW-S0948AFZZ J AC Switch,Slide Type [HOLD]
SW451 ———— — Switch,Key Type [Play/FF]

SW452 ———— — Switch,Key Type [REW]

phones

(Ref No.221-9 Cabinet
Exploded View)

(Ref No.221-9 Cabinet
Exploded View)

– 2 –

MD-S301MK

NO.

SW453 ———— — Switch,Key Type [Stop]

SW454 ———— — Switch,Key Type [Volume Down]

SW455 ———— — Switch,Key Type [Volume Up]

SW901(8-2) QSW-M0169AFZZ J AD Switch,Push Type [DISC IN]

PART CODE

PRICE

RANK

DESCRIPTION

(Ref No.221-9 Cabinet
Exploded View)

(Ref No.221-9 Cabinet
Exploded View)

(Ref No.221-9 Cabinet
Exploded View)

MECHANICAL PARTS

1 NGERH0589AFZZ J AC Wheel,Drive
2 NSFTD0327AFZZ J AE Shaft,Drive
3 LHLDX3135AFM1 J AH Cartridge Holder Ass’y
4 MSPRT1605AFFJ J AB Spring,Cancel Lever
5 MLEVF2595AFFW J AD Lever,Eject
6 LCHSM0930AFM1 J AM Main Chassis Ass’y
7 PCUSG0599AFZZ J AB Cushion
8 QPWBH0305AFM1 J AN Mechanism Flexible PWB Ass’y
8- 1 ———— — Motor Base Ass’y,with Flexible

8- 2(SW901) QSW-M0169AFZZ J AD Switch,Push Type [Disc In]
8- 3(PH901) VHPGP1S93K/-1 J AF Photo Interrupter,GP1S93K
9 XSPSN14P01800 J AA Screw,ø1.4×1.8mm
10 LX-JZ0154AFZZ J AA Screw,ø1.4×2.8mm
11 MSPRP0878AFFJ J AB Spring,Plate
12 LX-BZ0823AFZZ J AA Screw,ø1.4×1.2mm
13 NGERH0588AFZZ J AD Gear,Drive
14 LX-WZ9290AFZZ J AA Washer,ø0.8×ø2.4×0.2mm
15 RCTRH8174AFZZ J BQ Optical Pickup Unit Ass’y
16 MSPRP0877AFFJ J AC Spring,Drive Grip
17 LX-BZ0800AFZZ J AA Screw,ø1.4×2.5mm
18 NSFTM0292AFFW J AC Shaft,Guide
19 LX-JZ0144AFZZ J AA Screw,ø1.7×3mm
20 MSPRT1604AFFJ J AB Spring,Eject Lever
21 LX-BZ0804AFFF J AA Screw,ø1.4×2.2mm
22 PCUSG0650AFZZ J AB Cushion
23 LANGF1603AFFW J AC Bracket,Protect
24 LX-BZ0825AFZZ J AA Screw,ø1.4×1.5mm
M901 RMOTV0500AFZZ J AT Spindle Motor Ass’y
M902 RMOTS0104AFZZ J AR Sled Motor Ass’y

PWB (Not Replacement Item)

CABINET PARTS

201 CCABB2841AF01 J AS Front Cabinet Ass’y
201- 1 ———— — Front Cabinet

201- 2 GFTAC3135AFSA J AG Cover,MD
201- 3 LANGZ0335AFFW J AB Bracket,Disc Guide
201- 4 PCUSG0638AFZZ J AA Rubber,Preventive Vibration D
201- 5 PGIDM0256AFSA J AB Guide (Left)
202 CCABD4375AF01 J AW Bottom Cabinet Ass’y
202- 1 ———— — Bottom Cabinet

202- 2 GCOVA2218AFSA J AB Cover,DC Jack
202- 3 GCOVA2219AFSA J AB Cover,LED
202- 4 JKNBZ2040AFSA J AD Knob,Hold
202- 5 PSHET0367AFZZ J AA Sheet,Insulator,Bottom Cabinet
203 GFTAB1347AFSA J AC Cover,Battery
205 GCOVA2216AFSA J AD Cover,Eject
206 QTANZ9147AFFQ J AC Terminal,-,Rechargeable Battery
207 QTANZ9148AFFQ J AC Terminal,+,Rechargeable Battery
208 JKNBK0526AFSA J AE Knob,Eject
209 LANGK0932AFM1 J AM Main Frame Ass’y
210 PCUSG0640AFZZ J AB Cushion,Mechanism
211 PSHET0373AFZZ J AC Sheet
213 LANGZ0342AFM1 J AN Bracket,Eject
214 PCUSG0534AFZZ J AC Rubber,Preventive Vibration
215 PCUSG0633AFZZ J AA Rubber,Preventive Vibration B
216 GCABA2841AFSA J AE Center Cabinet
217 PCUSG0634AFZZ J AA Rubber,Preventive Vibration C
219 PSHET0376AFZZ J AA Sheet,Ext.Battery Terminal
220 QTANZ9152AFFQ J AG Ext.Battery Terminal
221 CCABC4328AF01 J BB Top Cabinet Ass’y
221- 1 ———— — Top Cabinet

221- 2 HDECQ0527AFSA J AM Plate,Decoration
221- 3 PSHEZ0814AFZZ J AC Sheet,Decoration Plate
221- 4 JKNBZ2041AFSA J AH Knob,Operation

(Not Replacement Item)

(Not Replacement Item)

(Not Replacement Item)

NO. PARTS CODE

221- 5 LANGK0933AFFW J AF Bracket,Operation Knob
221- 7 PSHEZ0839AFZZ J AC Sheet,Bracket
221- 8 PCUSG0643AFZZ J AA Rubber,Preventive Vibration E
221- 9 RUNTK0441AFZZ J AL Key Switch Flexible PWB Ass’y
222 PCUSG0642AFZZ J AA Cushion,Terminal
223 PFLT-1129AFZZ J AB PU Felt
224 PFLT-1127AFZZ J AA PU Felt
226 PSHEZ0856AFZZ J AB Sheet,Mechanism
229 PGUMS0728AFZZ J AB Cushion,PWB
230 PCUSG0655AFZZ J AB Cushion,Motor
231 PSHEZ0851AFZZ J AC Bracket,Eject Knob
232 LANGT1953AFFW J AC Bracket,Eject
601 LX-BZ0967AFFC J AB Screw,ø1.4×2mm
602 LX-BZ0877AFF3 J AA Screw,ø1.4×1.5mm
603 LX-CZ0107AFFF J AA Screw,ø1.2×2.5mm
605 LX-CZ0126AFFF J AA Screw,ø1.4×2mm
608 LX-BZ0805AFFN J AB Screw,ø1.7×2.5mm
610 LX-BZ0908AFF3 J AA Screw,ø1.4×2.0mm

PRICE

RANK

DESCRIPTION

ACCESSORIES

! RADPA3489AFZZ J AV AC Adapter

RPHOH0185AFZZ J AW Headphones
RRMCW0024AFZZ J BB Remote Control
TCAUH0341AFZZ J AD Service Card
TINSZ1374AFZZ J AF Operation Manual
TINSZ1375AFZZ J AC Quick Guide
UBAGC0076AFSA J AH Carrying Case
UBATI0068AFSA J BG Rechargeable,Battery

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

PWB-A DCYO-3074AF93 J — Main

OTHER SERVICE PARTS

88GMMD-110 J BV High Reflection Disc MMD-110
88GMMD-212 J BU Low Reflection Disc MMD-212

(TEAC Test MD)
(TEAC Test MD)

– 3 –

MD-S301MK

10x3

A

17

16

1

9

B

M901

18

2

8

15

8-2

(SW901)

8-1

8-3

(PH901)

C

24

12

14

13

10

10

22

19

23

D

11

7x2

M902

6

21

E

20

F

3

4

G

5

H

1

23456

Figure 4 MD MECHANISM EXPLODED VIEW

– 5 –

– 4 –

MD-S301MK

A

221

221-2

601x2

221-3

221-1

B

301

221-4

MECHANISM

207

601x2

224

230

221-8

220

224

216

219

222

215

PWB-A

608

C

223

229

209

602

201-5

605

217

201-2

201-1

214x2

603

D

226

E

221-5

221-7

221-9

221-8

206

232

203

217

210

602

213

602

201-3

201-4

201

602

231

205

610

211

208

F

202

601x2

202-5

202-3

202-2

G

202-1

H

1

23456

202-4

601x2

601x2

Figure 5 CABINET EXPLODED VIEW

– 6 –

– 5 –

– 5 –

PACKING METHOD

SETTING POSITION OF SWITCHES AND KNOBS

UNIT HOLD OFF
Remote HOLD CANCEL

Control

Carring Case

MD-S301MK

Service Card
Operation Manual
Quick Guide

Pad, AC Adaptor
SPAKZ0489AFZZ

Polyethylene Bag, Unit
SSAKH0314AFZZ

MD-S301MK

Sheet
SPAKZ0466AFZZ

Connecting
Cord, RCA Type

Remote
Contol

Rechargeable,
Battery

Packing Add., Unit
SPAKA2704AFZZ

AC Adaptor

Packing Case
SPAKC6620AFZZ

– 6 –

– 7 –

Stereo
Headphones
Unit

:Not Replacement Item

MD-S301MK

— M E M O —

– 8 –

– 5 –– 7 –

— M E M O —— M E M O —

MD-S301MK

– 9 –

– 8 –

MD-S301MK

COPYRIGHT 1998 BY SHARP COPORATION

©

ALL RIGHTS RESERVED.

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

– 10 –

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

Printed in Japan

A9808-725NS•HA•J

SC