Sharp MDSR-50, MDSR-50-H, MDSR-50-W, MDSR-60, MDSR-60-E Service manual

Illustration: MD-SR50H/SR50W

MD-SR50H/50W/60E/60W

SERVICE MANUAL

No. S2006MDSR50H/

MD-SR50H(BL)
MD-SR50H(S)
MD-SR50H(YR)
MD-SR50W(BL)
MD-SR50W(S)
MD-SR60E(GL)
MD-SR60W(S)

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

Illustration: MD-SR60E/SR60W

CONTENTS

SAFETY PRECAUTION FOR SERVICE MANUAL ............................................................................................................... 2

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

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

OPERATION MANUAL .......................................................................................................................................................... 5

DISASSEMBLY...................................................................................................................................................................... 8

REMOVING AND REINSTALLING THE MAIN PARTS......................................................................................................... 9

ADJUSTMENT ...................................................................................................................................................................... 10

NOTES ON SCHEMATIC DIAGRAM .................................................................................................................................. 23

TYPES OF TRANSISTOR AND DIODE .............................................................................................................................. 23

VOLTAGE ............................................................................................................................................................................ 24

BLOCK DIAGRAM ............................................................................................................................................................... 25

SCHEMATIC DIAGRAM ...................................................................................................................................................... 26

WIRING SIDE OF P.W.BOARD........................................................................................................................................... 28

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

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

FUNCTION TABLE OF IC.................................................................................................................................................... 35

PARTS GUIDE/EXPLODED VIEW
PACKING METHOD (MD-SR50H for U.K./SR60E Only)

Page

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-SR50H/50W/60E/60W

SAFETY PRECAUTION FOR SERVICE MANUAL

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

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

(1) When the cabinet has been removed, the power is turned on without a compact disc, and the Pickup is on a position

outer than the lead-in position, the Laser will light for several seconds to detect a disc. Do not look into the Pickup Lens.

(2) The Laser Power Output of the Pickup inside the unit and replacement service parts have already been adjusted prior

to shipping.
(3) No adjustment to the Laser Power should be attempted when replacing or servicing the Pickup.
(4) Under no circumstances look directly into the Pickup Lens at any time.
(5) CAUTION - Use of controls or adjustments, or performance of procedures other than those specified herein may result

in hazardous radiation exposure.

CAUTION

LASER KLASSE 1
LUOKAN 1 LASERLAITE

● This Portable MiniDisc Recorder is classified as a CLASS 1 LASER product.

● The CLASS 1 LASER PRODUCT label is located on the bottom.

●

Use the Portable MiniDisc Recorder only in accordance with the instructions given in
this manual and do not attempt to interfere with the interlock switch or make any
other adjustment as this may result in exposure to hazardous radiation.

(MD-SR50H/SR60E)

KLASS 1 LASERAPP ARAT

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

Laser Diode Properties

● Material: GaAIAs

● Wavelength: 785 nm

● Pulse time:

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

min. cycle 1.5S

Repetition

(MD-SR50W/SR60W)

VAROITUS! LAITTEEN KÄYTTÄMINEN MUULLA KUIN TÄSSÄ KÄYTTÖOHJEESSA
MAINITULLA TAVALLA SAATTAA ALTISTAA
KÄYTTÄJÄN TURVALLISUUSLUOKAN 1 YLITTÄVÄLLE
NÄKYMÄTTÖMÄLLE LASERSÄTEILYLLE.

VARNING - OM APPARATEN ANVÄNDS PÅ ANNAT SÄTT ÄN I DENNA BRUKSANVISNING
SPECIFICERAS. KAN ANVÄNDAREN UTSÄTTAS FÖR OSYNLIG LASERSTRÅLNING, SOM
ÖVERSKRIDER GRÄNSEN FÖR LASERKLASS 1.

(MD-SR50H)

VARO ! Avattaessa ja suojalukitus ohitettaessa olet alttiina näkymättömälle lasersäteilylle. Älä katso säteeseen.
VARNING! Osynlig laserstralning när denna del är öppnad och spärren är urkopplad. Betrakta ej strälen.

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 houising (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

Mechanism
Chassis

Optical pick-up

Top Cabinet

Spindle motor

Figure 2-1 Figure 2-2

– 2 –

Magnet Head

Main PWB

Laser Beam

Optical Pick-Up

MD-SR50H/50W/60E/60W

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

SPECIFICATIONS

General

Power source:

(MD-SR50H)

DC 5V : AC adaptor (AC 220-230V, 50/60 Hz)
DC 1.5V: Commercially available,

"AA" (LR6)

size, 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 source:

(MD-SR50W)

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: Separately available car adaptor,

AD-CA20X (for cars with a 12-24V
DC negative earth electrical system)

Power source: DC 1.2V: Rechargeable Nickel-Metal Hydride

(MD-SR60E)

battery (AD-N70BT) x 1
DC 5V : AC adaptor (AC 230-240V, 50/60 Hz)
DC 1.5V: Commercially available,

"AA" size

(LR6), alkaline battery x 1
DC 4.5V: Separately available car adaptor,

AD-CA20X (for cars with a 12-24V

DC negative earth electrical system)

Power source: DC 1.2V: Rechargeable Nickel-Metal Hydride
(MD-SR60W)

battery (AD-N70BT) x 1
DC 5V : AC adaptor (AC 220V, 50 Hz)
DC 1.5V: Commercially available,

"AA" size

(LR6), alkaline battery x 1
DC 4.5V: Separately available car adaptor,

AD-CA20X (for cars with a 12-24V

DC negative earth electrical system)

Power consumption:

7W (AC adaptor)

(MD-SR50H/60E)
Power consumption:

0.15A (AC adaptor)

(MD-SR50W)
Power consumption:

6W, 0.06A (AC adaptor)

(MD-SR60W)
Output power: RMS; 20 mW (10 mW + 10 mW) (0.2 % T.H.D.)
Charging time: Approx. 3.5 hours (90%)

Approx. 5.5 hours

(fully charged)

(When using the AC adaptor included with the unit)

Battery life:

When using a
high capacity, "AA" (LR6) size,
alkaline battery

Battery life:

When using a
high capacity, "AA" size (LR6),
alkaline battery

(MD-SR50H/SR50W)

commercially available,

Continuous recording

Approx. 3 hours
Continuous play

Approx. 7 hours

(MD-SR60W/SR60E)

commercially available,

Continuous recording

Approx. 3 hours
Continuous play

Approx. 7 hours

When using the optional rechargeable
batter AD-N70BT(full charged)

Continuous recording

Approx. 4.5 hours

Continuous play

Approx. 6.5 hours

When using the rechargeable batter
(full charged) included with the unit

Continuous recording

Approx. 4.5 hours

Continuous play

Approx. 6.5 hours

The continuous recording time is for analogue input when the
volume level is set to "VOL 0"
The continuous play time shows the value when the volume level
is set to "VOL 15"
The above values are the standard values when the unit is charg­ed and used at an ambient temperature of 20˚C (68˚F).

The operation time when using an alkaline battery may be
different, depending on the type and manufacturer of the battery
and on the operating temperature.

Input sensitivity:

Recording

level

Reference
input level

input

impedance

MIC H 0.25 mV 10 kohms

MIC L 2.5 mV 10 kohms

LINE 100 mV 20 kohms

Output level:

(MD-SR50H/SR50W)

Specified

output

Maximum

output level

Load

impedance

Earphones — 10 mW + 10 mW 32 ohms
LINE 250 mV (-12 dB) — 10 kohms

Output level:

(MD-SR60W/SR60E)

Specified

output

Maximum

output level

Load

impedance

Headphones — 10 mW + 10 mW 16 ohms
LINE 250 mV (-12 dB) — 10 kohms

Dimensions: Width: 99.9 mm (3-15/16")

Height: 22.9 mm (29/32")
Depth: 77.9 mm (3-3/32")

Weight: 168 g (0.37 lbs.) without battery
(

MD-

SR50H/SR50W)

Weight: 191 g (0.42 lbs.) with rechargeable
(

MD-

SR60W/SR60E) battery

Input socket: Line/optical digital, microphone

(powered by the main unit)

Output socket: Earphones (impedance: 32 ohms)
(

MD-

SR50H/SR50W)

Output socket: Headphones (impedance: 16 ohms)/
(

MD-

SR60W/SR60E) remote control unit

MiniDisc Recorder

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

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

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

Coding: ATRAC (Adaptive Transform

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

Wow and flutter: Unmeasurable

Specifications for this model are subject to change without prior
notice

laser pick-up
mode) 1 channel

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

type
method
are converted to 44.1kHz, and then

recorded)

(less than ±0.001% W. peek)

– 3 –

MD-SR50H/50W/60E/60W

p

NAMES OF PARTS

■ Remote control unit

1. Monaural Long-Play Mode Indicator

2. Record Indicator

3. Level Meter

4. Fast Play Indicator

5. Repeat Indicator

6. TOC Indicator

7. Battery Indicator

8. Random Indicator

9. Track Number Indicator

10. Character/Time Information Indicator

11. Synchro Recording Indicator

12. Disc Mode Indicator

13. Disc Name Indicator

14. Track Name Indicator

15. Remaining Recording Time Indicator

16. Total Track Number Indicator

17. Volume Down/Cursor Button

18. Volume Up/Cursor Button

19. Record/Track Mark Button

20. Stop/Power Off/Charge Button

21. Play/Pause Button

22. Display/Character Select Button

23. Edit/Auto Mark/Time Mark Button

24. Mode Button

25. Bass/Delete Button

26. Fast Reverse/Recording Level Down/
Name Select Button

27. Fast Forward/Recording Level Up/
Name Select Button

28. Enter/Fast Play/Synchro Button

29
30

31

11
12

13
14

22

123456

15 16

19

17

18

23

20

7
8

9
10

21

28

27262524

32

29. Earphones/Line Output Socket

30. Optical/Line Input Socket

31. Microphone Input Socket

32. Open Lever

33. 5V DC Input Socket

34. Battery Cover

35. Hold Switch

■ Remote control unit

1. Headphones Socket

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/Recording Level Down/
Name Select Button

8. Fast Forward/Recording Level Up/
Name Select Button

9. Sto

/Power Off Button

33
34

Illustration: MD-SR60E/SR60W Only

1

2

6

– 4 –

3

7

4

8

5

9

9

35

OPERATION MANUAL

POWER SOURCE

You can power this unit with an AC adaptor or a commercially available alkaline bat-

tery (LR6, “AA” size).

You can also power this unit with a rechargeable battery (AD-N70BT) or car adaptor

(AD-CA20X) which are available separately.

2

1

4

3

5

For MD-SR50H AC 220-230V, 50/60 Hz

For MD-SR50W AC 110-240V, 50/60 Hz

For MD-SR60E AC 230-240V, 50/60Hz

For MD-SR60W AC 220V, 50 Hz

Insert securely

,

all the way in.

To the DC

IN 5V socket

■ Rechargeable battery power

When the rechargeable battery is used for the

first time or when you want to use it after a

long period of disuse, be sure to charge it fully.

1

Open the battery cover.

● Slide the battery cover as far as it will go

to the outside and then lift to open it.

If the battery cover is lifted without be-

ing slid all the way out, it may break.

2

Insert the rechargeable battery accord-

ing to the polarity marked on the bottom

of the unit.

3

Close the battery cover.4Plug the AC adaptor into the AC socket,

and then insert the plug on the AC adap-

tor lead into the DC IN 5V socket.

5

Press the :OFF/CHRG ( • ■ ) button to

begin charging.

● “

” will appear, and the battery

will begin charging.

●After about 3.5 hours have

passed,

“ ” will go out.

This indicates that the battery charg-

ing is about 90% complete.

●

To charge the battery fully, continue

charging for about 2 more hours.

(In this case, you do not need to press

the :OFF/CHRG ( • ■ ) button. Even if

the :OFF/CHRG ( • ■ ) button is

pressed, “

” will not appear.)

Notes:

● After charging has been completed, the

AC adaptor may be left connected.

(For example, when charging at night.)

● The battery will not be charged when the

power to the main unit is turned on.

●

Do not force the battery cover open too far.●Do not use a rechargeable battery or an

AC adaptor other than those specified.

● The charging time will vary, depending

on the condition of the battery.

● When the battery is charged for the first

time or is charged after not being used

for a long period, the operating time may

be shorter than normal.The battery life

will recover with normal use i.e. charg-

ing and discharging.

● T o av oid shortening the service life of the

battery only recharge the battery after it

has been completely discharged.

RECORDING USING THE OPTICAL DIGITAL CABLE

This is the method used for recording digi-

tal signals from CDs or MDs exactly as they

are stored on the original. Compared to re-

cordings made from analogue inputs, digi-

tal recordings have extremely high-quality

sound.

■ Synchro recording

1

Connect the external equipment.

2

Insert a recordable MiniDisc, and then

press the REC button.

3

Put the equipment connected to this unit

into the playback stand-by mode.

4

Press the ENTER/SYNC button.

5

Start the playback on the equipment

connected to this unit.

■ Manual recording

1

Place the unit in the recording stand-by

mode. (Perform steps 1 - 3 in the “Syn-

chro recording” section.)

2

Press the button, and then start

playback on the equipment connected

to this unit.

● When recording from digital inputs, it is

not necessary to adjust the recording

level.

Notes:

● This unit incorporates a sampling rate

converter.

When this unit is connected to digital

equipment such as CS/BS tuners or DAT

tape recorders that use a different sam-

pling frequency (32 kHz or 48 kHz), re-

cordings can still be made. (The sam-

pling frequency of this unit is 44.1 kHz.)

● When making a digital recording from a

portable CD player (if the player has a

sound skip prevention function and this

function is turned on) the optical output

will drop out and digital recording will not

be possible. Be sure to turn the sound

skip prevention function off.

There are cases where digital recording

may be impossible.

In the following cases digital recording is

impossible, even if you are using digital

cables.

When you attempt to make a new digital

recording from a track that was digitally re-

corded on a MiniDisc.

● MiniDiscs are designed so that only first

generation digital copies can be made.

Further digital copies are prevented by

the SCMS (Serial Copy Management

System).

Playback

Digital cable

CD player, MD

player, etc.

Digitally recorded MiniDisc

Analogue recording is

possible.

Recording

Playback

Digital cable

Recording

MD player

MD-SR50H/50W/60E/60W

– 5 –

MD-SR50H/50W/60E/60W

CONVENIENT OPERATION OF THE UNIT

< How to read the battery indicator >

● 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 com-

pletely charged.

● When using the unit with an alkaline bat-

tery or a rechargeable battery, the battery

indicator will not correctly display the remain-

ing capacity for approximately 10 seconds

after the power has been turned on.

● When the AC adaptor included with this unit

or a separately available car adaptor is

used, the battery indicator will not be shown.

● The number of bars shown in the battery

indicator may increase or decrease, de-

pending on the operation being performed.

This is normal.

■ To prevent the unit from being

operated by mistake

To avoid accidental operation of the unit,

use the hold function.

Move the HOLD switch to the safety posi-

tion (direction indicated by the arrow).

● When the unit is in the hold mode, press-

ing the buttons will have no affect.

● To cancel the hold mode, move the

HOLD switch away from the safety po-

sition (the opposite direction of the ar-

row).

Battery indicator

Since the battery level is very low, you

cannot start recording or editing.

When the battery

level is high

When the battery

level is very low

■ Checking the remaining amount

of battery level

The remaining amount of battery level is

shown by the battery indicator (

) dur-

ing operation.

If the hold function is active whilst the power

is turned off, the power cannot be turned

on by mistake and the battery will not be

accidentally drained.

Remote

control unit

Main

unit

Cannot be operated

from either the

remote control unit or

the main unit.

Can only be operated

from the main unit.

Can only be operated

from the remote

control unit.

Can be operated

from either the

remote control unit or

the main unit.

Hold

Hold

Cancel

Hold

Cancel

Hold

Cancel Cancel

For MD-SR60E/SR60W Only

For MD-SR60E/SR60W Only

TROUBLESHOOTING

■ Moisture condensation

In the following cases, condensation

may form inside the unit.

● Shortly after turning on a heater.

● When the unit is placed in a room where

there is excessive steam or moisture.

● When the unit is moved from a cool

place to a warm place.

When the unit has condensation inside,

the disc signals cannot be read, and the

unit may not function properly.

● If this happens, remove the disc.

The condensation should evaporate in

approximately 1 hour. The unit will then

function properly.

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

authorised SHARP dealer or service centre.

■ If trouble occurs

When this product is subjected to strong

external interference (mechanical shock,

excessive static electricity, abnormal sup-

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

operated incorrectly, it may malfunction.

If such a problem occurs, do the following:

1. Unplug the AC adaptor from the AC

socket.

2. Remove the battery.

3. Leave the unit completely unpowered for

approximately 30 seconds.

4. Plug the AC adaptor back into the AC

socket and retry the operation.

If strange sounds, smell or smoke come out

of the unit or an object is dropped into the

unit, remove the AC adaptor from the AC

socket immediately and contact an

authorised SHARP service centre.

PROBLEM CAUSE

The unit does not turn

on.

● Is the AC adaptor disconnected?

● Is the battery exhausted?

● Is the unit in the hold mode?

● Has condensation formed inside the unit?

● Is the unit being influenced by mechanical shock or by

static electricity?

● Is the volume set too low?

● Is the earphones plugged in?

● Are you trying to play a MiniDisc with data on it instead

of a MiniDisc containing music?

● Is the unit in the hold mode?

● Is the battery exhausted?

● Is the battery exhausted?

● Is the unit being subjected to excessive vibration?

● Has the track number or character information been

written 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 oc-

cur whilst recording or editing?

● Is the unit in the hold mode?

● Is an optical signal being output from the external equip-

ment?

Read the operation manual for the external equipment.

No sound is heard from

the earphones.

When the operation but-

tons are pressed, the

unit does not respond.

Some sounds are

skipped.

The MiniDisc cannot be

ejected.

Recording and editing

are impossible.

– 6 –

MD-SR50H/50W/60E/60W

When the number of tracks used reaches

the limit, regardless of the remaining re-

cording time, further recording will be

impossible.

(Maximum number of tracks: 255)

If a MiniDisc has been recorded or ed-

ited repeatedly or if a MiniDisc has

scratches on it, it may not be possible to

record the maximum number of tracks on

it.

If there are scratches on a disc, the unit

will automatically avoid recording in those

areas. The recording time will be reduced.

When the remaining recording time of a

disc is displayed, short tracks less than

12 seconds long may not be included in

the total.

For MiniDiscs on which repeated record-

ing and editing operations were per-

formed, the COMBINE function may not

work.

A cluster (about 2 seconds) is normally the

minimum unit of recording. So, even if a track

is less than 2 seconds long, it will use about

2 seconds of space on the disc.

Therefore, the time actually available for re-

cording may be less than the remaining time

displayed.

If there are scratches on discs, those sec-

tions will be automatically avoided (no record-

ing will be placed in those sections). There-

fore, the recording time will be reduced.

For MiniDiscs on which repeated record-

ing and editing were performed, some

sounds may be skipped whilst cueing and

reviewing.

If there are scratches or dust on a

MiniDisc, the track numbers following that

track will be increased by one.

MINIDISC SYSTEM LIMITATIONS

MiniDiscs are recorded using a different system than is used for cassette tapes or DAT

recordings. Therefore, the following conditions may be encountered, depending on how

the disc has been recorded or edited. These are due to system limitations, and should be

considered normal.

Even if the maximum recording

time of a MiniDisc has not been

reached, “DISC FULL” or “TOC

FULL” may be displayed.

Even if the number of tracks and

the recording time have not

reached the limit, “DISC FULL”

may be displayed.

Even if several short tracks are

erased, the remaining recording

time may not show an increase.

Two tracks may not be combined

in editing.

The total of the recorded time and

time remaining on a disc may not

add up to the maximum possible

recording time.

When recorded tracks are played

back using the cue and review op-

erations, some sounds may be

skipped.

A track number can be created in

the middle of a track.

ERROR MESSAGES

Error messages RemedyMeaning

BLANK MD

BATT EMPTY

● The battery is run down. ● Charge the rechargeable battery or

replace the alkaline battery (or use

the AC adaptor for power).

● Nothing is recorded. ● Replace the disc with a recorded disc.

Can’t COPY

● No copy can be made because of

the SCMS copyright system.

● Record using the analogue cable.

Can’t EDIT

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

and then try editing it.

*: Number or Symbol.

PLAY MD

● You tried to record on a playback-

only disc.

● Replace it with a recordable disc.

Can’t READ*

● The disc data cannot be read be-

cause the disc is damaged.

● Reload the disc or replace it.

● Replace it with another recorded disc.

Can’t REC

●

Recording cannot be performed cor-

rectly due to vibration or shock in the unit.

● Re-record or replace it with another

recordable disc.

Can’t STAMP

● Editing is impossible. ● Check the number of tracks.

Can’t WRITE

● Cannot save the TOC information

correctly to a MiniDisc.(A large por-

tion of the disc has been damaged.)

● Replace the disc with another re-

cordable disc.

DEFECT

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

recording again.

● Replace the disc with another re-

cordable disc.

DISC FULL

● The disc is out of recording space. ● Replace it with another recordable

disc.

HOLD

LOCKED

NO DISC

Er-MD**

NO SIGNAL

● Poor connection of the digital cable.

● No output signal comes out from the

external unit to playback.

● The unit is in the hold mode. ● Return the HOLD switch to its origi-

nal position.

● The OPEN lever was moved during

recording or editing.

● Turn off the power and remove the

MiniDisc.

● A disc has not been loaded. ● Load a disc.

● You have come to the conclusion

that the unit is out of order.

● T o have it repaired, go to the distribu-

tor where you purchased the unit.

● Connect the digital cable securely.

● If the portable CD player has a function

to prevent sound skips,deactivate it.

● Playback with the connected unit.

– 7 –

MD-SR50H/50W/60E/60W

DISASSEMBLY

Cares before disassembling

When assembling the machine after disassembling or
repair, observe the following requirements so as to ensure
safety and performance.

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

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

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

STEP

REMOVAL

1 Bottom Cabinet 1. Screw .....................(A1) x6 8-1

2 Top Cabinet 1. Open the Top cabinet. 8-1

3 Main PWB 1. Screw .................... (C1) x4 8-2

4 Mechanism Unit 1. Raise the rear part, and 8-3

PROCEDURE

2. Open the Battery Cover.

3. Screw ..................... (B1) x4

4. Flexible PWB..........(B2) x2 8-2

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

3.Solder joint ............. (C3) x2

remove in the arrow direction.

FIGURE

(B1)x2
ø1.4x2mm

(A1)x2
ø1.4x2mm

Open Lever

(C3)x1

(A1)x2
ø1.4x2mm

Top Cabinet

Bottom Cabinet

Figu re 8-1

(C1)x4
ø1.7x2.5mm

(A1)x2
ø1.4x2mm

Battery Cover

(B1)x2
ø1.4x2mm

(A1)x2
ø1.4x2mm

(C3)x1

(B2)x2

Mechanism Unit

pull

pull

pull

pull

pull

pull

(C2)x1*

(C2)x1

Main PWB

Mechanism Unit

Felt

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.

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

Figure 8-2Figure 8-3

– 8 –

REMOVING AND REINSTALLING THE MAIN PARTS

Remove the mechanism according to the disassembling meth­ods 1 to 4. (See Page 8.)

MD-SR50H/50W/60E/60W

(A2)x3
ø1.4x2.8mm

How to remove the spindle motor (See Fig. 9-1.)

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

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

How to remove the Lift motor (See Fig. 9-2.)

1. Remove the solder joints (B1) x 2 of head up/down motor

lead wire.

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

3. Remove the screw (B3) x 1 pc., and remove the head up/
down 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. 9-3.)

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., and remove the sled

motor.

3. Remove the solder joints (C4) x 2 of flexible PWB.

Note:

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

How to remove the magnetic head (See Fig. 9-4.)

1. Remove the screws (D1) x4 which connects the magnetic

head to the head relay flexible PWB, remove the spring
washers (D2) x 2 and remove the soldering joints (D3) x 2.

Note:

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

(B3)x1
ø1.4x5.5mm

Remove the
Solder joint
(B1)x2

Lift Motor

Stop Washer

Driver Gear

Spindle
Motor

(C1)x1

(C2)x1

Figure 9-1

Figure 9-2

Mechanism Flexible
PWB Solder joint
(A1)x1

MD Mechanism

(B2)x1
ø1.4x1.5mm

MD Mechanism

(C3)x2
ø1.4x1.2mm

Sled Motor

Mechanism Flexible
PWB Solder joint
(C4)x2

@

How to reinstall the optical pickup unit
(See Fig. 9-5.)

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

2. Slowly raise the optical pickup.

(E1)x1
ø1.7x3mm

Guide Shaft

Optical Pickup Unit

Figure 9-5

Thrust Plate Spring

MD Mechanism

– 9 –

Figure 9-3

Magnetic Head

Figure 9-4

MD Mechanism

(D1)x1
ø1.4x1.5mm

(D1)x1
ø1.2x1.6mm

MD Mechanism

(D1)x2
ø1.4x2.2mm

(D2)x2
Spring joint

Solder joint

(D3)x2

MD-SR50H/50W/60E/60W

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 [ Y 1 9 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-DOWN 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.

– 10 –

MD-SR50H/50W/60E/60W

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.

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.

When the PLAY button is pressed while a target address 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
SKIP UP/DOWN button is changed as follows.

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

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

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

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

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

•Whenever the DISP button is pressed in the continuous playback mode, the indication changes as follows.
* Pre-mastered disc

* Recordabl disk

0032 — 03C0 — 0700 — 08A0 — 0950— 0032 —

0032 — 0032 — 0032 — 0032 —

1 — 10 — 384 — 1

Continuous playback (SUBQ address indication) [ S Q ]

|

Continuous playback (C1 error indication) [ C E ]

|

Continuous playback (SUBQ address indication) [ S Q ]

Continuous playback (ADIP address indication) [ A P ]

|

Continuous playback (C1 error indication) [ C E ]

|

Continuous playback (ADIP error indication) [ A E ]

|

Continuous playback (ADIP address indication) [ A P ]

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 button is pressed while a target 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 SKIP UP/

DOWN button changes as follows.

0032 — 0032 — 0032 — 0320 —

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

– 11 –

MD-SR50H/50W/60E/60W

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)

• 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 SKIP DOWN button is pressed

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

• Error data 0 is the latest error.

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

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

• : Error Code

Explanation of error history code

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

tolerable range
21h : Focus retraction completion allowable time-over
23h : Track search completion allowable time-over
24h : Disc linear speed measurement failure
32h : P-TOC read failure
42h : U-TOC read failure
44h : U-TOC write data write disabled/read check error
52h : SD write data write disabled
71h : Pickup position initialization time-over
72h : EEPROM data read check sum error
73h : Record head drive disabled (by EJECT lever)
82h : Power overvoltage detection
91h : Ambient temperature is higher that the allowable tempera-

ture.

: Address (Sector section)

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

– 12 –

MD-SR50H/50W/60E/60W

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 "SKIP DOWN" button.

[ 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 UP or VOL DOWN key.

(9) Set the temperature reference. (Refer to the Temperature 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

2. Temperature reference setting method

[1] Measurement, calculation and setting procedure

(1) Set the TEST mode.

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

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

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

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

correction table.

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

• Temperature reference = Microcomputer TEMP input AD value + Temperature corrected value
(6) Set the temperature reference value by button operation , 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

Ambient

temperature

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

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

Temperature

correction

Center

temperature

– 13 –

MD-SR50H/50W/60E/60W

EEPROM DATA LIST (EEPROM version b)

TEMP setting

Item display Set values

T M _ _ Calculate values

Fucus setting

Item display Set values

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

Tracking setting

Item display Set values

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

Spindle setting

Item display Set values

S P G _ 1 4 H
S P i _ E 0 H
S P m _ A 0 H
S P o _ 6 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 P D _ 6 0 H
S P K _ E B H

BASS setting

Item display Set values

B S 1 _ 3 F H
B S 2 _ 1 F H
B S 3 _ E 2 H

Sled setting

Item display Set values

S L G _ D F H
S L 2 _ 2 0 H
S L M _ 7 F H
S L V _ A B H
S K k _ 7 2 H
S K t _ 4 C H
S K m _ 7 0 H
W T m _ 2 4 H
M V 1 _ 4 4 H
M V 2 _ 8 8 H
S R V _ 0 0 H

ADJ. SET setting

Item display Set values

C O K _ A 0 H
F A T _ C 0 H
T A T _ 3 E H
C A T _ 2 0 H
F A B _ 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
F L p _ 0 8 H

Control setting

Item display Set values

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

I N H _ 6 4 H
D R H _ 0 C H
P L E _ 1 B H
R C E _ 4 2 H
E L T _ 7 6 H
S L T _ 4 5 H
S P M _ 0 0 H
M S L _ 0 0 H
U S 0 _ 0 0 H
U S 1 _ 0 0 H
U S 2 _ 0 0 H

– 14 –

MD-SR50H/50W/60E/60W

: 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

SKIP UP SKIP DOWN

SKIP DOWN

SKIP UP SKIP DOWN

SKIP UP SKIP DOWN

SKIP UP SKIP DOWN

SKIP UP SKIP DOWN

T R E C

SKIP UP SKIP DOWN

: Continuous playback menu

T P L A Y

SKIP UP SKIP DOWN

SKIP UP SKIP DOWN

SKIP UP SKIP DOWN

: Digital input signal monitor menu

D i n M o n

SKIP UP SKIP DOWN

E E P R O M

SKIP UP SKIP DOWN

I N N E R

SKIP UP

SKIP UP

SKIP DOWN

SKIP DOWN

SKIP UP

* When the [STOP] 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

: 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

– 15 –

MD-SR50H/50W/60E/60W

: ATT Autoadjustment menu

: ATT adjustment error (adjustment value output)

: During ATT autoadjustment

Adjustment error

Normal end

: ATT adjustment normal end (adjustment value output)

: Continuous playback (high reflection)

: Continuous playback (low reflection)

PLAY

PLAY

A U T O 2

ATT Auto Adjustment

A D J . O K

A D J . N G

S Q # # # #

A P # # # #

A T 2

* When the [STOP] 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)

: 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 [BASS] 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 [SKIP UP/DOWN] button is pressed

* When the [SKIP UP] 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 [SKIP DOWN] 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

– 16 –

MD-SR50H/50W/60E/60W

: 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 [BASS] 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

DISPLAY

E D A T A

C L E A R

SKIP UP SKIP DOWN

E 2 § §

SKIP UP SKIP DOWN

E 3 § §

SKIP UP SKIP DOWN

E 4 § §

SKIP UP SKIP DOWN

E 5 § §

SKIP UP SKIP DOWN

E 6 § §

SKIP UP SKIP DOWN

E 7 § §

SKIP UP SKIP DOWN

E 8 § §

SKIP UP SKIP DOWN

E 9 § §

SKIP UP SKIP DOWN

• Error history clear

• Error history display

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

– 17 –

MD-SR50H/50W/60E/60W

: EEPROM setting menu

: Focus setting menu

: Spin setting menu

: Tracking setting menu

: Sled setting menu

: BASS setting menu

: TEMP setting menu

: Adjustment setting menu

: Digital EQ setting menu

: Control setting menu

PLAY

E E P R O M

EEPROM Setting

F o c u s

S p i n

SKIP UP SKIP DOWN

T r a c k

SKIP UP SKIP DOWN

S l e d

SKIP UP SKIP DOWN

B a s s

SKIP UP SKIP DOWN

T E M P

SKIP UP SKIP DOWN

A D J S E T

SKIP UP SKIP DOWN

D E Q S E T

SKIP UP SKIP DOWN

C T R L

SKIP UP SKIP DOWN

SKIP UP

SKIP DOWN

* When the [STOP] 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 S 1

B S 2

SKIP UP SKIP DOWN

B S 3

SKIP UP SKIP DOWN

* 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 UP/DOWN] 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.

: Focus setting menu

PLAY

F o c u s

Focus Setting

F G

F F 1

SKIP UP SKIP DOWN

F F 2

SKIP UP SKIP DOWN

F Z H

SKIP UP SKIP DOWN

F L n

SKIP UP SKIP DOWN

D J G

SKIP UP SKIP DOWN

SKIP UP SKIP DOWN

F L V

W T f

SKIP UP SKIP DOWN

* When the [STOP] 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 UP/DOWN] 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 S

SKIP UP SKIP DOWN

– 18 –

MD-SR50H/50W/60E/60W

: Spin setting menu

PLAY

S p i n

Spin Setting

S P G

S P i

SKIP UP SKIP DOWN

S P m

SKIP UP SKIP DOWN

S P o

SKIP UP SKIP DOWN

S P 1

SKIP UP SKIP DOWN

S P 2

SKIP UP SKIP DOWN

S P 3

SKIP UP SKIP DOWN

S P 4

SKIP UP SKIP DOWN

S P 5

SKIP UP SKIP DOWN

S P D

SKIP UP SKIP DOWN

* When the [STOP] 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 UP/DOWN] button is pressed.

(The upper limit varies depending on the items)

S P K

SKIP UP SKIP DOWN

* 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

T F 1

SKIP UP SKIP DOWN

T F 2

SKIP UP SKIP DOWN

T F S

SKIP UP SKIP DOWN

T B o

SKIP UP SKIP DOWN

T B t

SKIP UP SKIP DOWN

T K o

SKIP UP SKIP DOWN

T K t

SKIP UP SKIP DOWN

T D o

SKIP UP SKIP DOWN

T D t

SKIP UP SKIP DOWN

* When the [STOP] 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 UP/DOWN]

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

T G R

SKIP UP SKIP DOWN

S C t

SKIP UP SKIP DOWN

S C m

SKIP UP SKIP DOWN

C L p

SKIP UP SKIP DOWN

C L r

SKIP UP SKIP DOWN

J P I

SKIP UP SKIP DOWN

K 1 0

SKIP UP SKIP DOWN

* When the [MODE] button is pressed in each state, the set digit is changed.

– 19 –

MD-SR50H/50W/60E/60W

: Slide setting menu

PLAY

S l e d

Sled Setting

S L G

S L 2

SKIP UP SKIP DOWN

S L M

SKIP UP SKIP DOWN

S L V

SKIP UP SKIP DOWN

S K k

SKIP UP SKIP DOWN

S K t

SKIP UP SKIP DOWN

S K m

SKIP UP SKIP DOWN

* When the [STOP] 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 UP/DOWN] 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

SKIP UP SKIP DOWN

M V 1

SKIP UP SKIP DOWN

M V 2

SKIP UP SKIP DOWN

S R V

SKIP UP SKIP DOWN

: Temp setting menu

: TEMP reference

: Reference

§ § : Temperature code

: TEMP A/D input value

: Measurement value

PLAY

T e m p

TEMP Setting

T M § §

T p i n

SKIP UP SKIP DOWN

* When the [STOP] 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 UP/DOWN] 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

SKIP UP SKIP DOWN

T A T

SKIP UP SKIP DOWN

C A T

SKIP UP SKIP DOWN

F A B

SKIP UP SKIP DOWN

* When the [STOP] 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 [P-MODE]

button is pressed.

1st digit (initial value) 2nd digit

P-MODE

P-MODE

* In the specific state the setting changes in the range of "0h to Fh" when the [VOL UP/DOWN]

button is pressed.

* When the [MODE] button is pressed in each state, the set digit is changed.

– 20 –

MD-SR50H/50W/60E/60W

: Digital EQ setting menu

PLAY

D E Q S E T

Digital EQ Setting

H Q 1

H Q 2

SKIP UP SKIP DOWN

H S G

SKIP UP SKIP DOWN

H S O

SKIP UP SKIP DOWN

L Q 1

SKIP UP SKIP DOWN

L Q 2

SKIP UP SKIP DOWN

L S G

SKIP UP SKIP DOWN

L S O

SKIP UP SKIP DOWN

G Q 1

SKIP UP SKIP DOWN

F L p

SKIP UP SKIP DOWN

G Q 2

SKIP UP SKIP DOWN

G S G

SKIP UP SKIP DOWN

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

* 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 [P-MODE] button is pressed.

1st digit (initial value) 2nd digit

P-MODE

P-MODE

* In the specific state the setting changes in the range of "0h to Fh" when the [VOL UP/DOWN]

button is pressed.

* When the [MODE] button is pressed in each state, the set digit is changed.

: Control setting menu

PLAY

C T R L

Control Setting

C T 0

C T 1

SKIP UP SKIP DOWN

C T 2

SKIP UP SKIP DOWN

C T 3

SKIP UP SKIP DOWN

R C 0

SKIP UP SKIP DOWN

R C 1

SKIP UP SKIP DOWN

S Y C

SKIP UP SKIP DOWN

P W L

SKIP UP SKIP DOWN

D R 1

SKIP UP SKIP DOWN

D R 2

SKIP UP SKIP DOWN

I N 1

SKIP UP SKIP DOWN

I N 2

SKIP UP SKIP DOWN

I N 3

SKIP UP SKIP DOWN

I N H

SKIP UP SKIP DOWN

Continued to

the next page

SKIP UP SKIP DOWN

– 21 –

MD-SR50H/50W/60E/60W

Continued from

the preceding page

D R H

SKIP UP SKIP DOWN

P L E

SKIP UP SKIP DOWN

SKIP UP SKIP DOWN

SKIP UP SKIP DOWN

R C E

E L T

S L T

SKIP UP SKIP DOWN

S P M

SKIP UP SKIP DOWN

SKIP UP SKIP DOWN

SKIP UP SKIP DOWN

M S L

U S 0

SKIP UP SKIP DOWN

SKIP UP SKIP DOWN

U S 1

U S 2

* When the [STOP] 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 [P-MODE]

button is pressed.

1st digit (initial value) 2nd digit

P-MODE

P-MODE

* In the specific state the setting changes in the range of "0h to Fh" when the

[VOL UP/DOWN] button is pressed.

* When the [MODE] button is pressed in each state, the set digit is changed.

– 22 –

NOTES ON SCHEMATIC DIAGRAM

MD-SR50H/50W/60E/60W

• 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

HSB2838
2SA17457
RN1444 A
UN5213
UN5210
2SD1979 S
2SD1819 AS

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

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

REF. NO

SW401 EJECT OFF—ON
SW402 HOLD OFF—ON
SW403 LID DETECTION OFF—ON
SW902 DISC PROTECT OFF—ON

DESCRIPTION

POSITION

TOP VIEW

F10J2E
F05J2L

TOP VIEW

HRB0103 B

TOP VIEW

RB731U

TOP VIEW

SBE803
2SA1873 GR

Figure 23 TYPES OF TRANSISTOR AND DIODE

– 23 –

MD-SR50H/50W/60E/60W

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

PIN
NO.

PIN
NO.

1
2
3
4
5
6
7
8

1
2
3
4
5
6
7
8
9

1
2
3
4
5
6
7
8
9

1
2
3

IC101

IC202

IC203

IC251

VOLTAGE

0.71V

0.71V

0.71V

0.71V

1.24V

1.24V
0V

1.24V

1.24V

1.24V

1.24V

1.24V

2.28V

2.28V
0V
0V

2.48V
0V
0V

1.47V

2.35V
0V
0V

2.48V

1.24V

1.24V

1.24V

1.24V

1.24V

1.2V

1.24V

1.24V

1.24V
0V

1.24V

1.24V

0.16V

1.24V

1.24V

1.24V

1.24V

2.48V
0V

—

1.24V

1.24V

1.24V

0.19V

VOLTAGE

1.55V

2.05V

2.57V

1.94V

0.93V

1.43V

0.49V

0.6V

0.6V

2.55V

0.6V

0.99V

0.99V

0.99V

0.8V

1.87V

2.12V

1.66V

1.73V
0V

VOLTAGE

0V
2V

2.73V

VOLTAGE

2.07V
0V
0V
0V

5.35V

2.08V

2.08V

2.08V

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

PIN
NO.

1
2
3
4
5
6
7
8

PIN
NO.

1
2
3
4
5
6

PIN
NO.

1
2
3
4

1
2

3
4
5
6
7

8
9

VOLTAGE

0.84V

2.48V

1.22V

1.24V

1.24V

1.24V

1.24V

1.24V

1.17V

0.5V

0.5V

0.5V

1.4V

1.13V

2.55V

0.5V

0.8V

0.8V

0.8V

0.8V

1.84V

1.97V

1.38V

1.53V

0.9V

1.9V

2.56V

1.66V

1.56V

1.9V

0.9V

IC253

VOLTAGE

5.36V

5.31V

5.31V

IC255

VOLTAGE

-1.05V

-2.25V

-1.65V

2.72V

IC256

VOLTAGE

—

IC257

VOLTAGE

—

0V
0V
0V

0V
0V

0V
0V

0V

—

0V
0V
0V

0V
0V

0V

0V

2V

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

0V

0V

1V

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

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

—

2V
0V

0.88V

0.76V

2.46V
1V
2V
0V
1V
1V
0V
0V
0V

—

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

2.34V
0V

0.3V
0V
0V

1.6V

1.2V

1.7V

0.3V

2.25V

2.34V

0.2V

IC258

PIN

VOLTAGE

NO.

1
2
3
4
5
6

IC259

PIN

VOLTAGE

NO.

1
2
3
4
5
6

IC841

PIN

VOLTAGE

NO.

1
2
3
4
5

IC842

PIN

VOLTAGE

NO.

1

2
3
4
5

0.59V

4.93V

0.56V

0.56V

0.56V

2.63V

2.8V

2.06V

2.06V

2.81V

2.56V

2.36V

VOLT AGE

IC353

PIN

VOLTAGE

NO.

1

2.73V

2

0V
0V

3
4

0V
0V

5

0V

6

0V

7

0V

8

IC354

PIN

VOLTAGE

NO.

1

0V

2

0V

3

0V

4

0V

5

0V

IC402

PIN

VOLTAGE

NO.

1

2.35V

2

0V
0V

3
4

0V

5

2.34V
0V

6

2.35V

7

2.35V

8

IC404

PIN

VOLTAGE

NO.

1

0.2V

2

0.2V

3

0V

4

2.19V

5

2.5V

IC431

PIN

VOLTAGE

NO.

1

2.34V

2

2.35V

3

0V

4

0V

IC621

PIN

VOLTAGE

NO.

1

8.58V

2

0V

3

0V

4

0V

5

0V

0V
0V
0V

—

0V

—

0V

—

0V

6

PIN
NO.

1
2
3
4
5
6

PIN
NO.

10
11
12
13
14

PIN
NO.

S
G
D

1
2

3
4
5
6
7

8
9

IC260

IC351

IC821

2.34V

8.55V

VOLTAGE

2.72V

2.7V

2.7V
0V
0V
—

VOLTAGE

0V
0V

4.44V
0V
0V

4.44V
0V

0.91V

4.44V
0V

0.91V

4.44V
0V

4.49V

VOLTAGE

0V
—
—

PIN
NO.

PIN
NO.

10
11
12
13
14
15
16

17
18
19

20
21
22
23
24

PIN
NO.

1
2
3
4
5
6
7
8

9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50

1
2
3
4
5
6
7
8
9

1
2
3
4
5
6

IC401

0.29V

2.32V

0.17V

0.22V

2.32V

2.15V

2.03V

2.25V

2.35V

2.35V

2.35V

2.32V

0.21V

2.32V

2.25V

1.55V

1.57V

1.05V

1.75V

0.56V

2.35V

2.34V

2.34V

2.35V

2.13V

2.35V

2.35V

2.35V

2.47V

5.36V

2.35V

5.36V

0.2V

2.7V

2.7V

0V
0V

0V

0V

0V
—
—
—
—
0V

—
—
—
0V
0V
0V
0V
0V
0V
0V

0V
0V
0V

PIN

VOLTAGE

NO.

51

0V

52

—

53

2.35V
54
55

100

PIN
NO.

PIN
NO.

PIN
NO.

PIN
NO.

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

1
2
3
4
5
6
7
8

1
2
3
4
5
6
7
8

1
2
3
4
5
6

S
G
D

2.32V

2.35V

2.35V

2.32V

2.35V

2.35V

2.28V

2.35V

2.35V

2.35V

1.09V

1.12V

2.34V

2.35V

2.35V

2.32V

2.32V

0.15V

2.35V

2.35V

2.34V

2.34V

2.12V

1.47V

2.32V

2.35V

2.33V

IC852

VOLTAGE

1.17V

0.67V

1.17V

1.16V

1.26V

IC822

VOLTAGE

1.17V

0.37V

1.17V

1.17V

1.16V

1.26V

IC892

VOLTAGE

1.58V

IC851

VOLTAGE

—

0V

0V

0V

0V

0V
0V

0V
0V

0V
0V
0V

0V

0V
0V

0V

VOLTAGE

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

IC901

VOLTAGE

2.34V

2.49V

2.49V

0.75V

IC809

VOLTAGE

0V
0V

0V

0V

0V
0V

2V

0V
0V

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

0V
0V

0V

2.8V

1.2V

2.8V

0.6V

0V
—
—

0V

0V

0V

0V
0V
0V

PIN
NO.

10
11
12
13
14
15
16

PIN
NO.

10

PIN
NO.

PIN
NO.

PIN
NO.

PIN
NO.

1
2
3
4
5

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

1
2
3
4
5
6
7
8
9

1
2
3
4
5

1
2
3

1
2
3
4
5
6

1
2

3
4
5
6
7

8
9

IC501

IC651

IC771

IC801

IC802

IC871

IC701

VOLTAGE

0V
—
—
0V

2.49V
0V

0.78V
0V
0V
1V
1V
1V
—
—
—
—

VOLTAGE

2.73V
—
0V
0V
0V
0V
—
—
—
—

VOLTAGE

0V

2.74V

2.74V
—

2.5V

VOLTAGE

0V
2V

4.44V

VOLTAGE

0.45V

1.03V

3.28V

0.45V

0.99V

4.38V

VOLTAGE

1V

2.36V
0V

1.18V

2.36V

VOLTAGE

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

-2.32V
0V
0V

2.42V

0.86V
0V
0V
0V

PIN
NO.

18
19

PIN
NO.

PIN
NO.

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
10
11
12
13
14
15
16
17

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

1
2
3
4

1
2
3
4
5

1
2
3
4
5
6
7
8
9

IC601

IC803

IC873

IC703

VOLTAGE

2.34V
0V

—
—
—

8.55V

2.48V

0V

2.38V

0V

2.38V

2.34V

0V
0V
0V
0V

4.67V

0V
0V
0V

4.67V

0V
0V
0V
0V

—

4.67V

2.34V

0V

2.48V

—
—
—
—

2.48V

0V
0V
0V
0V

4.67V

0V
0V
0V

4.67V

—

0V
—
—

VOLTAGE

4.4V

4.46V
0V
0V

VOLTAGE

0V

8.59V

2.36V
—

4.47V

VOLTAGE

0V
0V
0V
0V
0V

2.5V

-2.34V
0V

2.5V
0V

1.26V
0V

2.35V
0V
0V

2.5V
0V

-2.34V

-2.34V
0V
0V
0V
0V
0V

– 24 –

IC651

MOTER DRIVER

LB1930M

VCC

VCC VEE

IC841

S8324A28

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 TRANSISTER,

OP AMP,

RESET

M903

LIFT

MOTOR

IC842

XC62HS02

2.35V REGULATOR

IC822

IR3M14N

DC/DC

CONVERTER

IC501

AD/DA CONVERTER

AK4550VT

M902

SLED

MOTOR

IC101

RF SIGNAL

PROCESSOR

IR3R55

2.5V REGULATOR

IC771 62GR2522

IC401

SYSTEM

MICROCOMPUTER

IX0341AW

RIPPLE

FILTER

VCC VEE

IC873

62GR4522

4.5V
REGULATOR

OPIC

LASER

PICK

HEAD

M901

SPINDLE

MOTOR

IC201

ENDEC/SERVO/

ATRAC

LR37811

+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

TRANSISTOR,

RESET IC

J801

DC IN

(4~5.5V)

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

4-CH PWM DRIVER

LV8017W

VM

IC402

EEPROM

58X2402T

VS

IC202

IX2567AF

4M D-RAM

+2.5V

OPTICAL IN

UNIT

J701

OPTICAL IN

J701

LINE IN

J702

MIC IN

(READY FOR

PLUG/IN

POWER)

2.0V
REGULATOR

IC203

62FP2002

1,2,

21,23

6

5,7

7,30,35

VCC VG

43

16,18,

20,22

39,41

17,21,27,

40,44

13,14

23

40

26-29,

32-37,

39-46

1-9,

11-19

7,9

66

74

9

2,3

15,16

4,21

20 17

9,16 6,19

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

14-17

55,

59,

81,

82

9,

11,

13,

48

75,83

74

2

18-24

50

5

5

2

5

8

3

10

+2.7V

82-84,86,

89-100

12,62,68,87

3

4

2

2

5,6

NC

SW402

HOLD

SW902

DISC

PROTECT

95

4

SW401

EJECT

SW403

LID

DETECTION

19

40,65,77,78,98

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

VCC

L-CH

5

8

R-CH

NOR GATE

IC351 74ACT02T

N-ch MOS FET

IC354 CPH5608

IC353 FTD2005

VCC

IC852

IR3M14N

DC/DC

CONVERTER

F841

0.4A,DC 60V

2

2

2

VCC

2,3

+2V

+1-2V

1

+2.5V

IC431

RESET

S80820LN

1

62

IC621 RN4904

DIGITAL

TRANSISTOR

1

6

5

+2.5V

-2.5V

+4.0V

MD-SR50H/50W/60E/60W

Figure 25 BLOCK DIAGRAM

– 25 –

MD-SR50H/50W/60E/60W

G

C

7

A
A

C112

TP144

R105
390K

Q101

0.033

C111

C110

0.0033

0.22

CK112

45

48

47

46

ROUT

EFMAGI

TTR

EFM

RF1

GOUT

1

AGC

R

RF2

and

2

RF3

DIFF

SW

3

RF4

DIFF

4

REFI

5

IC101
IR3R55

6

REFO
RFADD

BIAS

7

TCGI

8

AIN

9

BIN

10

EIN

11

FIN

12

DISC

STBY

AVCC

BIAS

16

14

13

15

CK101

2.5V

C165

0.033

CK102

2.5V

R154

1.75V

1.2K

R161

1.2K

F­F+
T+
T-

44

SGAIN

17

CK103

43

EFMAGC

18

C130

0.1

C107

C109
1

0.012

N.C.

42

41

40

39

EFMI

AGND

AVCC

RF2-1

EFMO

ADIP

AGC

HPF LPF

LOGIC

CLOCK

LATCH

DTEMP

DGND

AGND

21

20

22

19

TP151

TP145

CK104

AUSCLK

RFLAT
TEMP
LDON
LDVAR
OPICGA

A

MAIN PWB-A

PLAYBACK SIGNAL
RECORD SIGNAL

C103

1
C104

0.027

C102

1

B

2SA17457

VCCPU

C

CN101

TP101

A

TP102

B

TP103

COM

TP105

TP106

5

4 3 2 1

6

5

4 3 2 1

6

VCC

DGND

CVCC

TP115

TP109

TP108

TP114

TP110

TP111

TP116

TP117

11

7

10

9

8

12

17

16

14

13

15

11

7

10

9

8

12

17

16

14

13

15

E F T-F+T+

RF4

RF3

RF2

VCC

DGND

AGND

MP/R

LDON

LDVAR

OPIC

LASER ON/OFF

C161

1

IC101:
RF SIGNAL PROCESSOR

18

TP119

TP118

TP120

TP121

TP122

21

20

22

19

18

18

RF1

2

21

20

22

19

F-

OPTICAL PICKUP UNIT

D

5

4 3

S

E

G1

D1

IC354
CPH5608
N-ch MOS FET

F

SW902

M

M901
SPINDLE
MOTOR

G

IC351
74ACT02T
NOR GATE

GND

8
9
10
11
12

C357

13

0.1

14

VCC

C354

0.1

C353
10/6.3

D351
SBE803

4 3

G2

C351

N.C.

2

27P
(CH)

1

5

D2

2 1

C361

0.039

IC353

R361

FTD2005

15

N-ch MOS FET

R922

TP662

12

TP661

11

10

TP660

TP659

9

TP658

8

TP657

7

INNSW

TP656

6

100K

PDCNT

TP654

TP655

5

4 3 2 1

TP666

16

TP665

15

TP663

TP664

14

13

HEAD

DISC PROTECT

COM

W

U
V

-

M

M902
SLIDE
MOTOR

MECHANISM FLEXIBLE

PWB ASS'Y

PH901
PHOTO
INTERUPTER

7
6
5
4
3
2
1

7

8

D1

R921
330

TP652

TP653

- + +

M

M903
LIFT
MOTOR

TP651

R351

4.7

5

6

S2

G2S1D2

S1S2G1

4 3 2 1

15

CN601

TP351

14

0V

R920

100K

4.5V

Q901

0V

UN5210
C905
470P

R906

C904

1.5M

0.33

C903

0.0022

C902

0.0022

C901

0.0022

R904

1

R903

1

R902
1

VCCHEAD

C913

C914

0.0022

SL+

SL-

SPVM

TP601

13

IC601: 4-CH PWM DRIVER

IC901
LB1971V
SPINDLE
MOTOR DRIVE

GND

CSLP2

13

CX

CSLP1

14

N.C.

15

DET

N.C.

FC

16

OSC

FG

17

WIN

VCC2

18
19

VIN

VS

20

UIN

VCC1

21

FCOM

BRK

22

N.C.

STBY

23

UOUTWOUT

24

VOUT

RF

R901
1

C912

0.0022

0.0022

R404
100K

R403
1K

TP602

TRDRF

TRDRR

DCNT1

R601

56K

SLDRR

SLDRF

C610

C609

1

C906

0.022

12
11

N.C.

10

9
8
7
6

R908

5

22K

4
3
2
1

DISCPR

MOTOR DRIVE

N.C.

N.C.

R600
56

C651
1

23

24

25

IN2F

26

N.C.

PGND3

VBAT

27

25

S/S

28

26

GND

29

VCC2

30

CP1

N.C.

31

CP2

32

N.C.

CP3

33

N.C.

CP4

34

N.C.

35
36

IN4F

PGND6

37

38

L609

4.7
L610

4.7

L608

4.7

1

C608
1

C907

0.022
C908

0.047

C910

0.1

C911

3.3

IC651

LB1930M

G

G

6

O2

I2

7

I1

8

O1

9

VCC

10

21

22

20

19

BAT2

OUT2F

OUT2R

IN2R

VBAT/2MON

IC601
LV8017W

VGOFF

35
36

IN4R

OUT4R

BAT4

OUT4F

42

41

40

39

PGND2

PGND5

SPIN

5
4
3

N.C.

2
1

LDCNT2

LDCNT1

FODRF

14

15

18

17

16

BAT1

OUT1F

OUT1R

PGND1

OPIN+

MUTE1

12

OPIN-

11

OPOUT

VCC1

MUTE

PGND4

BAT3

OUT3

45

47

43

46

44

N.C.

H

• NOTES ON SCHEMATIC DIAGRAM can be found on page 23.

• The numbers 1 to 18 are waveform numbers shown in page 31.

1

23456

Figure 26 SCHEMATIC DIAGRAM (1/2)

38

ADAG

DATA

23

AUDATA

+B

HDON

FODRR

13

IN1F

CLK

VG

IN3

48

N.C.

C106

0.22

37

ADAGC

ADIPI
ADIPO

ADLPFO

22KO
22KI

WBO

TCGO
AOUT
BOUT
EOUT
FOUT

DVCC

24

CK106

CK901

C652

0.1
D651

F10J2E

L601 4.7

L602 4.7

L604 4.7
L603 4.7

12

IN1R

11
10

9
8
7
6

N.C.

5

N.C.

4
3

N.C.

2
1

N.C.

+B

R106
56K

36

35

N.C.

34

33

N.C.

32

31

CK108

30

CK107

29

TP133

R104

28

22K

TP132

27

TP131

R102

26

22K

25

R101

TP130

22K

C121
270P

TP100

(CH)
C122

270P
(CH)

C123
390P

C124
390P

VCCRF

+B

+B

VCCLD

C172
33/6.3

+B

EFMO

SPDRR

C601
1

C622

0.1

SPDRF

– 26 –

TP139

C602
1

CK105

R103
22K

VCCPWM

16

C604

R622
1K

D622
MA8075M

1

17

L171
10µH

C171
33/6.3

F-F+T-

C603
1

C605

0.1

T+

11

10

4

3

TP171

TP610

R621
100K

FOK

SENSE

CIN
DINT

XRT
SYD0

SYD1
SYD2
SYD3
SYD4
SYD5
SYD6
SYD7
SYWR
SYRD
SYRS

C204

0.47

TP208

TP209

76

77

TP210

78
79

CK201
CK202

80

CK203

81

CK204

82
83

CK205

84

CK206

85
86

C203

87

0.1

88
89

R204

90

1K

91
92
93
94
95
96
97
98
99

100

9

TP201

IC621
RN4904
DIGITAL
TRANSISTOR

4 3

2

5

1

6

+B

C606
22/6.3

1

75

SBO
SBSY
SFSY
FOK
SENSE
COUT

MCCK
DINTX
VDD1
DGND
RSTX
SYSD0
SYSD1
SYSD2
SYSD3
SYSD4
SYSD5
SYSD6
SYSD7

TP405

XRT
SENSE
FOK
RCAULT

EMPH0
MCPGIN

INPGIN
INPGCK
AUDATA
AUSCLK
PBMUTE
PBAULT
DSPRST

74

FEMON

EFMMON

SYD7

TP416
TP417

ELON

SYD6

73

DADATA

AVCC

ADDATA

N.C.

EFMI

SYD5

TP202

71

72

DFCK

BCLK

98
99

100

AGND

AIN

5

4 3 2 1

C207

SYD3

SYD4

C209
22P (CH)

70

69

LRCK

TOTMON

76

77

78

SYWRX
SYRDX
SYRS

EIN

7

6

0.1

26
27
28
29
30

31
32
33

34
35
36

37
38
39
40
41
42

INPGI
INPGCK

43

RADAT

44

RACLK

45

PBOPON

46

PBLAT

47

LCDRST

48
49

50

N.C.

DGND

TEMON
SBCK

TCG

25

SYD5
SYD6
SYD7
VSS
CKSTP
XRST
SENSE
FOK
RCLAT
TEST1
TEST0
EMPH0
VCC
MCPGI

VSS

EL

CK207

67

68

VDD3

DOUT

FIN

BIN

9

8

SYD1

SYD2

24

SYD1

SYD2

51

52

N.C.

XL201

TP204

33.868MHz

C211

5P (CH)

R222

1M

C212
5P(CH)

N.C.

61

64

63

65

60

59

66

62

VXI

VPD

DIN

X1O

X1I

DGND

VDD1

EFMO

50

PLCK

49

ACRCER

48

IC201
LR37811
ENDEC/SERVO/
ATRAC

28
27
26

VBAT

WBI

TEST1

TEST0

TEST2

DGND

VDD1

11

10

16

14

13

12

17

15

TP206

C205

0.1
R206
270K

L100
10µH

C100

TP207

R205

330K

10/6.3

4

1

2

3

R406

TP406

100K

R405
10K

R416

100K

SYD0

SYWR

SYRD

SYRS

R415

1K

21

23

2 0

22

19

18

17

16

VSS

SYD0

EPWP

SYRD

SYRS

SYWR

EJSW

SYD3

26

SYD4

27

IC401

IX0341AW

SYSTEM

MICROCOMPUTER

NIH

MD1

MD0

BUZOUT

RFLAT

REC

PLAY

58

60

56

59

53

55

57

54

N.C.

TP403

RFLAT

HREC

BEEP

HPLAY

C431

0.47
R431

330K

N.C.

58

56

57

ADPON

DAPON

OPTCNT

RAA1
RAA2
RAA3

FODRR

FODRF

X176KO

TRDRF

20

19

18

TRDRF

FODRR

FODRF

SW401
EJECT

R412
15K

R413
1K

R414
1K

DSPSCK

N.C.

14

15

13 12

EEPK

EPCS

EEPD

DSPSCK

NMI

WDTOVF

MD2

RESET

61

63

62

TP400

D431
HSB2838

1

OUT
VDD

IC431
S80820LN

RESET

N.C.

55

54

EMPH1

TRDRR

SLDRF

22

21

SLDRF

TRDRR

TP409
TP410
TP411

DSPSTB

11 10

SCK0

DSPSTB

VCC

uSTBY

64

65

XL401

4.19 MHz

VSS

4

N.C.

3 2

R463
100K

LDCNT1

LDCNT2

N.C.

51

53

52

LDCNT1

LDCNT2

TCRS
RAD0
RAD1

RAWEX

RARASX

RAA9
RAD3
RAD2

RACASX

DGND

RAOEX

RAA8
RAA7
RAA6
RAA5
RAA4
VDD2

RAA10

RAA0

SPDRF

SPDRR

SLDRR

24

23

25

SPDRR

SPDRF

SLDRR

IC402
58X2402T
EEPROM

SDA

5

SCL

6

WP

7
8

DSPDAT

N.C.

9

8

PCRX

DSPDAT

100

99

78

77

76

XTAL

EXTAL

66

67

68

AURESET

R461
100K

X700KO

C201
1

RMDAT

VSS

TP212

50
49
48
47
46
45
44
43
42
41
40
39
38
87
36
35
34
33
32
31
30
29
28
27
26

12

7

VSS

HDON
DCNT1

Vref

AVCC
ARQ

DCEXT

69

C454

0.0022

N.C.

VSS

A2
A1
A0VCC

PDCNT

6

PDCNT

PCNT2

71

70

TP414

5

SPWDS

N.C.

PCNT1

TP413

TP441

CK224
TP203
CK222

TP407

4
3
2
1

TP408

DISCPR

INNSW

4 3 2 1

DISCPR

RCPCNT

72

73

R464
100K

INNSW

OPICGA

KHOLD

CHGON
PLVGIN
BATOFF

MCMON
PLVON

LDVAR
CHGCNT

HKEY1
HKEY2

PLVBAT

DINT

74

EFMO

R411
1K

SPIN

SPIN

LDON

JPNP

AVSS

TEMP
RKEY

APQD

TP205

CIN

VCC

VSS

75

TP402

RPLAY

100

CIN

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

77

76

RPLAY

R402
100K

1

D461
RB731U

2
1

R465
100K

3 2

HDON

R408
100K

TP404

CHGON
PLVGIN

TP415

TP401

R425

R423
22K

RKEY

4

4 3
5
6

R466
560K

22K

IC202
IX2567
4M D-R

1
2
3
4
5

6

7
8
9

10

TP200

VCCDRAM

R202
33

+2.7V

N.C.

SW402

HOLD

OPICGA
LDON

R407
10K

PLVON

C401

0.1

LDVAR
CHGCNT
TEMP

HKEY1
HKEY2

PLVDRY

R424

22K

DINT

RCPCNT

SW403
LID DETECTION

I/O1
I/O2
WE
RAS
A9

A0
A1
A2
A3
VCC

PCNT1
PCNT2

I
I

C
4

MD-SR50H/50W/60E/60W

D

22K

IC202

IX2567AF

4M D-RAM

1

I/O1

2

I/O2

3

WE

4

RAS

5

A9

A0

6

A1

7

A2

8

A3

9

VCC

10

C202
47/6.3

VCCDRAM

R202
33

+2.7V

R457

R455

18K

5.6K

IC203

1

2

5

+B

3

+B

EMPH0

HKEY2

R456

8.2K

HKEY1

R452

R451

5.6K

8.2K

HPLAY
HREC

+B

+2.7V

C500
10/6.3

C511

1

7

8

6

DEM1

DEM0

SDTO

IC501

AK4550VT

MCLK

LRCK

SDTI

11

10

9

7

IC771

8

62GR2522

2.5V REGULATOR

1

C773

2

0.22

C872
10/10

-B

DADATA
ADDATA
DFCK
BCLK
LRCK
DIN
ADPON
DAPON
OPTCNT
EMPH1

20

GND

19

I/O4

18

I/O3

17

CAS

16

OE

A8

15

A7

14

A6

13

A5

12

A4

11

+B

VCC2R0V

62FP2002

C206

1

2V REGULATOR

2.0V

DCNT1

5

VDD

SCLK

12

13

L871

0.47µH

R453
18K

C501

4 3 2 1

AINL

VSS

PWAD

PWDA

14

N.C.

0.0022

AINR

AOUTL

15

5

4 3

16

R501
470

VCOM

AOUTR

R502

6

C774
1

470

C502

0.0022

C505

L771
100µH

C771
47/6.3

L862
100µH

C503

0.001

C868
1

R458
56K

R454
56K

C509

2.2

C506

0.001

C510

2.2

3.3/10

TP451
TP452
TP453
TP454
TP455
TP456
TP457
TP458
TP459
TP460
TP461
TP462
TP463

CN451

C481
1

TP481
TP482

C482

TP483

1

DSPDAT

TP486

DSPSCK

TP487

DSPSTB

TP488

DSPRST

TP489

CN482

IC501: AD/DA CONVERTER

VCCADDA

TP500

L500
47µH

-B

C551

0.1

-B

TP771

TP772

AUDATA

AUSCLK

RCAULT

C869
47/6.3

INPGCK
INPGIN

MCPGIN

TP412

R757

2.2K
C760

0.1

PBMUTE

BEEP

1
2
3
4

6

10
11
12
13

1
2
3
4

6

R758
100

5

7
8
9

5

7
8
9

1
2
3
4
5
6
7
8

9
10
11
12
13

1

2

3

4

5

6

7

8

9

R754
150K

R761
220K

12

13

AURESET

DISPLY
EDIT
P-MODE
BASS
SKIP UP
VOL DOWN
VOL UP
ENTER
SKIP DOWN
STOP
PLAY
REC
GND

11

10

HP

BEEP

BIAS

LOGIC
LAT

CLK

14

15

PBAULT

IC701
IR3R54N
AUDIO AMP.

C758
1

R762

91K

7

9

8

6

RHPVEE

AMPuGAIN SEL.

RHPVCC

AMPuGAIN SEL.

LHPVEE

DAT

LHPVCC

19

18

17

16

+B

C753
1

R702
22

5

20

C762

2.2
C754

1

4 3 2 1

RIN

ATT

ATT

LIN

21

PWB ASS'Y

KEY FLEXIBLE

R720

8.2K

R719

8.2K

11

10

12

9

RIHP

LOUT

ROUT

16

14

13

15

C702
10/6.3

C704
47/6.3

N.C.

R-

RLPFO

LPF

LPF

L-

L+ R +

LLPFO

24

23

22

N.C.

C761

R765

2.2

15

R766
15

C766

0.22

8

LIHP

DGND

VEE

17

IC703

IR3R59N

C492
1

AGND

18

7

N.C.

L-ch
R-ch

C701
10/6.3

C765

0.22

LCD

LCD

DRIVER

R712

5.6K

C734

R711

0.1

5.6K

5

4 3 2 1

6

RI LI

VCC

2 2

21

23

20

19

R703

N.C.

100K

C703
R701
100

R-ch

AUDIO AMP.

D496

MA8075M

D495

MA8075M

R767

KEY

4.7
R768

4.7

RKEY

R-ch
L-ch

C733

0.1

24

0.01

L-ch

L491
33

PLAY

R492
1K

D492

RPLAY

MA8075M

L710
47

R715
100K

R729

2.7K

D494
MA8075M

R728

R730

2.7K

1K

LCD ASS`Y

R717
1K

Q711
RN1444 A

0V

1.83V

C713 1

0V

C712
100P
(CH)

R716
100K

R726

C714

39K

1

C731

0.22
C721

3.3/10

C722

3.3/10

Q721:RIPPLE FILTER

TP729

C491

0.1

R718
1K

C715

L702
L703

C711

R714

10K

0.1

100P

C726

3.3/10

R727

C723

0.001

(CH)

4.5V

8.2K

TP727

TP728

R713

4.5V

R723

TP726
TP725
TP722
TP724

TP723
TP721

TP706
TP708

10K

TP702
TP703
TP704

L704

Q721
2SD1979S

6.8K

J701
OPTICAL/
LINE IN

7

VCC

9

Vout

8

GND

TP707

6

N.C.

TP701

1

L

2

R

3

GND

4
5

TP705

3.9V

R725
100

C725

3.3/10
J702

R724

MIC IN

TP714

6.8K

4

TP713

2

TP712

3

TP711

1

C724

0.001

6
5
2
4
3
1
7
8

J703
REMOTECONTROL
/HEADPHONES

.

SW402

HOLD

R871

10K

F10J2E

L851
22µH

G

IC852
IR3M14N

IC851

N-CH MOS FET

DC/DC CONVERTER

CPH3403

ERRAMP

GND

5

EO

RSFF

BUF

EIN

S

R Q

6

CMP

VCC

VREF

7

EIP

STAND

OSC

8

ROSC

CTRL

ERRAMP

GND

5

EO

RSFF

Q R

BUF

EIN

S

6

CMP

VCC

VREF

7

STAND

EIP

OSC

8

CTRL

ROSC

IC822

IR3M14N

D832

C838

HRB0103B

0.1

R833

C832

0.1

C833

0.1

47

+B

L821
10µH

C828
1

D823
F10J2E

IC871
TC7S86FU

EXCLUSIVE OR GATE

VCC

1

5

2

C851

3.3

OUT

BY

OUT

BY

C821

C876

4 3

1

GND

4

R844
C860
1

C830

1

47

C843

0.22

C842
33/6.3

C844
10/6.3

IC842
XC62HS02

2.35V
REGULATOR

3

2

1

4

3

2

1

3.3

VCCMICOM

IC253: DIGIITAL TRANSISTOR
IC258: TRANSISTOR
IC255: OP AMP
IC260: DIGIITAL TRANSISTOR

C845

0.1

D841
F10J2E

4 3

5

D842
HRB0103B

C850

0.1

C848
1

N.C.

C846

1
2

0.1

R841
100K

2
1

C847
1

5

4 3

R850
100K

CONVERTER

R277

DCVDD

C840
220/4

C849
220/4

VGBATT

L841

F841

4.7

TP842

C841
1

IC841

6372C281

2.8V UP

IC259
HN1C01FU
POWER
TRANSISTOR

4 3
5
6

39K

C259

0.1

R279
100

TP809

D281
1SS400

0.4A,

DC 60V

TP841

2
1

R288
47K

C839

C823
220/4

R855

0.33

+2R7

C863

1

+2R5

C853
220/4

R856
10M

390K
C856

330P(CH)

R832

R826
10M

R825
300K

R827
220K

VG

-2R5

D862
F10J2E

D851
D1FH3

R854
10K

R857
330K

R853
270K

180K

R824
10K

C826
100P(CH)

R823
270K

D831
HRB0103B

C835

0.1
D821

D1FH3

D

C822

22/6.3

C852

S

IC821
CPH3403
N-CH MOS
FET

C825
1

D861
C862

1

D

S

22/6.3

C857
560P

C827
220P

(CH)

DC/DC CONVERTER

C834

0.1

G

D822
F10J2E

PICGA

ON

R422
100K

7

LVON

1

AR

CNT
P

Y1
Y2

DRY

R443

RCPCNT

PCNT1
PCNT2

403

DETECTION

12K

4.5V REGULATER

IC873
62GR4522

4 3

VCC4R5

5

C837
1

2
1

C836
1

PCNT1
PCNT2
PLVDRY
CHGON

PLVON
CHGCNT

R831

180K

RCPCNT

R814
10K

+B

R815

R816

Q803
UN5213

R819

IC253
RN4904

1
2

Q257
2SA1832 GR

R283

100K

R287

560K

R284

390K

IC258
HN1C01FU

1
2

IC260
RN4904

Q461
2SD1819AS

0V

0V

IC802

HN1C01FU

TRANSISTOR

1
2

10K

4.5V

1.5K

0V

0V

4 3
5
6

R818

22K

3.3M

C818

0.1

G2

5

S2

6

S2

7

D

8

2.1V

Q250
2SA17457

1.6V

R294

R295

100K

100K

R281
22K

6
5
4 3

0V

5.4V

5.1V

R285

100K

1

6

2

5
4 3

6
5
4 3

R251
100

R460
68K

0.6V

R462
27K

Q801

R809

2SJ520TL

1

4.5V

2.9V

R811

3.4V

1

R807

6

R812

22K

5

10K

4 3

C804

R813

0.1

10K

1

3

2

C802

IC801

0.01

62RP2002

2.0V REGULATOR

2

IC809

1

RN4904
DIGITAL TRANSISTOR

IC251
FTD2017
N-ch MOS FET

G1

4

S1

3

S1

2

D

1

IC892

0V

HN1C01FU

R293

TRANSISTOR

2.2K

4 3

2

5

1

6

R282

1M

R286

2.2K

0V

R256

Q251

2SD1819AS

56K

-1.15V

-1.6V

R255

C253

4.7K

0.1

C251

0.1
R253

7

5

8

6

39K

O - +

V+

V-

+ - O

R250

IC255

NJM022V

4 3 2 1

100

R261
1K

R262

R263
68K

68K

R269
30K

C801
1

R296
100K

R292
100K

R291
100

R254
22K

D251
1SS400

C254

0.1

R266
56K

R267
10K

4.5V

3.9V

D803

RB520S30

4.5V

C803

0.1

IC257
S80808LN

1

OUT

VDD

C291
1

C252

0.1
R252

150K

C255

0.1

R801

1.1A

4.5V

3 2 1

5

4

3.9V

OUT

1

VDD

IC803
S80819LN
RESET IC

4

VSS

3 2

RESET

R257
27K

R271
68K

R270
68K

D801
F05J2L

TP805

R802
560

R803

1.2K

Q891
2SA1873GR

R806
56K

4

VSS

3 2

VCCBATT

R272
100

3 2 1

5

4

6

IC256
RN4911
DIGITAL
TRANSISTOR

L800

TP802

D802

MA8051M

R808
1

R810
1

TP803
TP804

TP801

L801

J801
DC IN

1

N.C.

2
3

BATTERY
TERMINAL,+

BATTERY
TERMINAL,-

7

8 9 10 11 12

Figure 27 SCHEMATIC DIAGRAM (2/2)

– 27 –

MD-SR50H/50W/60E/60W

A

PWB-A(TOP VIEW)

BATTERY
TERMINAL,+

B

TO OPTICAL
PICKUP UNIT

C

P30 1-D

TP171

L171

C161

Q101

R154

CK101

18

3

2

D

TP351

R920

TP665

C357

9

TP111

TP205

14

C171

TP103

TP109

8

10

TP658

TP659

TP106

TP105

TP120

IC351

5

13

15

TP660

TP661

E

F

G

TO MECHANISM
FLEXIBLE PWB
ASS'Y
P30 6-C

6

3

EJECT
SW401

12

10

13

C721

C836

4

IC701

15

1

5

C837

C734

5

IC873

4

1

20

R729

C722

TP662

C733

1

24

R730

TP663

3

2

C703

2

1

C172

TP101

CN101

7

TP655

TP601

TP664

C704

R703

TP713

TP714

TP712

TP711

J702
MIC IN

TP803

TP110

1

22

TP122

1

R701

R291

CK112

C102

C104

R105

TP117

TP121

CK901

R412

5
8

R404

R403

1

CN601

16

TP666

R728

4

C501

3

R501

C291

TP144

TP115

TP130

TP409

IC402

TP651

C651

R502

C502

TP114

C103

TP102

TP119

C121

R411

TP410

TP411

TP657

TP654

R600

C731
R727

16

1

IC257

C112

48

TP118

1

12

13

CK103

TP116

R102

R101

C122

4

TP653

15

IC501

R292

C111

5
10

CK102

TP145

TP131

TP407

TP408

TP406

R921
R922

C505

5

C110

45

IC101

15

C130

TP132

R103

C123

1

R416

R406

C604

TP652

24

25

36

37

TP602

C506

10

5

C109

40

CK108

R104

30
35

TP708

R717

TP202

9

8

TP100

C107

35

30

20

CK104

TP151

TP133

C124

TP201

R413

R414
R415

R405

L604

20

IC601

40

TP703

TP704

L500

C454

37

25

24

CK106

C713

HOLD
SW402

R464

C106
TP139

36

CK107

100

1

L603

TP610

15

10

5

45

R718

R714

TP500

R106

CK105

TP108

5

10
15

20

26

13

12

48

R715
R713
R716

C714

7

TP441

25

TP405

C603

1

C715

TP705

16

R407

TP404

R423

R422

TP415

95

IC401

35

30

TP416

C609

L609

C622

C610

L710

Q711

TP706

TP707

TP702

R762

TP701

TP771

8

17

90

R408

40

TP203

85

L610

C760

12

13

D281

R288

IC258

R283

R425

TP417

TP656

R757

TP772

1

R285

1

R284

TP200

R424

TP212

80

45

TP210

TP206

TP483

R758

10

IC703

15

6

R287

R754

Q250

IC251

4

R282

4

3

C259

R443

75

70

65

60

55

50

TP487

R761

TP728

R281

6

1

Q257

IC809

C401

76

TP208

TP209

TP419

C482

TP412

5

20

8

R296

4

C758

R295

R294

IC892

C251

R293

8

TP841

5

R251

Q251

R255

R256

R286

R279

6

4

1

6

IC260

IC253

3

3

1

4

3

IC259

R819

R277

6

4

TP809

1

3

C200

C206

TP207

1

3

IC871

5

4

TP402

R831

C876

TP414

XL401

1

2

IC431

3

4

R461
R465

R463

TP489

9

1

TP482

TP481

C481

C765

R766

R765

TP724

R767

4

C492

TP723

2

TP729

J703

HEADPHONES

C839

R832

TP413

TP400

R431

R466

3

1

CN482

D495

D496

3

TP722

R871

R402

TP401

TP403

51

TP204

TP488

TP486

1

24

7

TP727

REMOTECONTROL/

C253

8

IC255

TP842

1

R271

R261

R826

C856

C857

C431

D461

TP459

C766

1

C252

R254

4

R263

R262

R269

R825

R853

D431

4

TP462

R455
R458
R456
R457

R768

R492

TP725

5

TP721

5

C254

R270

R266

R823

R856

6

TP458

TP452

D492

C827

6

D251

R250

3

C255

4

TP804

C826

5

8

R857

R855

R854

5

8

IC852

R809

R811

TP455
R451

TP463

TP451

L491

D494

TP801

TP726

R253
R252

R257

R272
IC256

1

6

R267

R827

R824

C830

D802
R802

Q891

R452

13

C491

2

L800

4

1

1

IC822

1

C860

4

1

R803

D803

R453

L801

3

TP802

R454

BATTERY
TERMINAL,-

D823

C828

D822

C825

R801

R806
TP457

CN451

TP456

TP454

TP453

R808

D801

TP805

TP461

TP460

R810

10

1

11

14

TO KEY

FLEXIBLE

PWB ASS'Y

P30 3-E

TO LCD

ASS'Y

P30 5-E

J801
DC IN

: Through-hole where the top, bottom and +B patterns are connected.
: Through-hole where the top, bottom and hround 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 31.

1

23456

Figure 28 WIRING OF P.W.BOARD (1/3)

– 28 –

PWB-A(BOTTOM VIEW)

MD-SR50H/50W/60E/60W

DC IN
J801

C846

C841

R850

C869

C868

D622

C771

R818

L841

IC621

C849

L200

XL201

C847

R844

C818

IC841

C842

L771

C823

C761

C845

C843

R222

C762

C853

C753

D842

C202

R202

C201

4

CK224

C212

C211

75

CK201

C209

C754

F841

C850

C833

D831

D832

C821

L821

D821

C822

C851

L851

IC851

4

C862

C840

R814

Q801

Q461

R460

R807

IC821

R815

IC802

C804

C803

C832

C852

D851

R462

C801

R833

D861

R816

3

4

C835

C838

L862

Q803

R813

IC803

1

2

IC801

C863

1

5

R812

C802

C834

IC203

D862

R621
R622

4

3

D841

23

1

SW403
LID DETECTION

20 16

IC202

156

CK222

51

CK207

CK203

CK202

C711

50

55

60

65

70

76

L702

CK205

C204

2

1

80

C608

C606

C551

45

40

IC201

85

CK206

C203

CK204

L608

7

90

R204

C605

R841

C848

IC842

15 11

30

35

25

20

15

10

5

95

C602

L602

D651

8 6

26

100

C601

L703

3

4

L704

5

10

1

C652

C511

R206

1

C712

C509

C844

L100

C208

C207

L601

C500

C100

C205

R205

IC651

IC771

4
5

C774

C906

C905

C510

C503

R161

1

12

1

R908

C902

R601

1

24

R903

C702

C724

D351

C901

R719

C912

8

45

3

C913

R720

R724

5

C361

R712

C723

C353

R361

R904

R902

R901
C914

R726

R725

R723

Q721

C725

C354

C165

R351

1

IC353

142

IC354

3

5

C910

10

C351

C911

5

12

Q901

C907

C908

IC901

20

13

15

R906

R905

C903

C904

10

L871

65

C872

3

C773

R711

C726

R702

C701

J703

REMOTECONTROL/

HEADPHONES

7

8 9 10 11 12

J701

OPTICAL/LINE IN

J702
MIC IN

Figure 29 WIRING OF P.W.BOARD (2/3)

– 29 –

MD-SR50H/50W/60E/60W

Magnetic Head Flexible PWB (23)

A

Optical Pickup

M901
Spindle Motor

Unit (15)

Magnetic Head (21)

B

SW902
Disc
Protect

Mechanism Flexible PWB (8)

C

PH901
Photo
Interrupter

CN601

To Main PWB

P28 1-E

D

CN101

To MAIN PWB
P28 1-C

E

F

G

M902
Sled Motor

To MAIN PWB
P28 6-E

CN451

M903
Lift Motor

To MAIN PWB
P28 6-F

CN482

H

Key Switch Flexible PWB Ass'y (213)

1

23456

Figure 30 WIRING OF P.W.BOARD (3/3)

– 30 –

LCD Ass'y (214)

MD-SR50H/50W/60E/60W

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

Stopped

CH1=1mV

DC 10:1

TP208

1

(FEMON)

1

TP122

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

SDTi

5

1

SCLK

6

2

T

LRCK

7

3

MCLK

8

4

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

CH2=2V

DC 10:1

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

T

CH3=2V

DC 10:1

1994 / 12 / 16 00:24:17

CH4=2V

50us/div

DC 10:1 (50us/div)

NORM:100MS / s

9

10
11

Main : 5K
Zoom : 5K

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

Stopped

TP201

(EFMMON)

1

TP210

(TEMON)

T

2

TP209

(TOTMON)

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

CH1=1V

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

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

2ms/div

ENV

9

10
11

16

Stopped

CH1=2V

DC 10:1 (50ms/div)

T

SPDRR

12

1

TP601

2

13

(VM)

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

Stopped

CH1=2V

DC 10:1 (2ms/div)

TP201

(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

CK105

(HPFO)

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

T

T

Main : 10K
Zoom : 10K

CH3=500mV

DC 10:1

Main : 10K
Zoom : 10K

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

ENV

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

1994 / 12 / 15 09:10:03

20us/div

ENV

Stopped

CH1=2V

ENV

1

10

14

15

1
10
12

13

9

10

DC 10:1

TP208

(FEMON)

1

T

TP210

(TEMON)

2

TP656

3

(SL+)

TP657

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

CH2=2V

CH2=2V

DC 10:1

CH2=2V

DC 10:1

DC 10:1

OFF

CH3=2V

DC 10:1

Main : 10K
Zoom : 10K

CH3=2V

DC 10:1

Main : 10K
Zoom : 10K

CH3=1V

DC 10:1

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

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)

1s/div

ENV

9

1s/div

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

CH2=2V

DC 10:1

DC 10:1

=Filter= =Offset= =Record Length=

CH1 : 0.00V
CH2 : 0.00V
CH3 : 0.00V
CH4 : 0.0V

TP210

(TEMON)

TP656

(SL+)

TP657

(SL-)

Smoothiing : OFF
BW : FULL

T

1

2

3

Smoothiing : OFF
BW : FULL

Main : 1K
Zoom : 1K

CH3=2V

DC 10:1 (1s/div)

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

1

CK108

17

(WBO)

2

=Filter= =Offset= =Record Length=

Smoothiing : OFF

CH1 : 0.000V

BW : FULL

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

Main : 4K
Zoom : 4K

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

18

3

TP121

4

(T-)

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

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

10K

Measurement

TP

1000P

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

– 31 –

Main : 10K
Zoom : 10K

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

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

MD-SR50H/50W/60E/60W

TROUBLESHOOTING

It is advisable to use the TEST mode (refer to Error Data Display Mode, P19) indicating the causes of troubles before
starting repair. Causes of operation errors (up to 10 errors) are recorded as error codes. This information is useful
for repair.

When does not function

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

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

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

Yes

Does the display operate normally?

Yes

Is playback state set?

Yes

Is audio output normal?

Yes

Is recording/playback operation normal?

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

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

No

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 connot be
set".

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

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

Is operation normal when the main body button is pressed?

No

Is the pin 95 of IC401 in H state? (TP404)

Yes

Does the pin 66 of IC401 oscillate? (TP400)

Yes

No

No

– 32 –

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

Check the position of Hold switch.

Replace XL401.

• Abnormal display

MD-SR50H/50W/60E/60W

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

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

Yes

Position check in INNER mode

No

Replace the disc.

• Audio playback clrcult

Although the playback time display is acting., no sound is given during playback in the normal mode.
Is audio wavefrom output from IC501 pins 15 and 16?

Yes

Is audio wavefrom output from IC703 pins 8 and 17.

Yes

Is audio wavefrom 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

– 33 –

MD-SR50H/50W/60E/60W

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

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.

– 34 –

MD-SR50H/50W/60E/60W

FUNCTION TABLE OF IC

IC401 RH-iX0341AWZZ: System Microcomputer (IX0341AW) (1/3)

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 INNSW Input Mechanism inner SW position detection input
4 P15 DISCPR Input Disc record inhibition switch input
5 TIOCA2 SPWDS Input Spindle motor FG pulse width detection
6 P17 PDCNT Output Inner detection PD current control output
7 Vss VSS — Ground potential
8* TxD0 RMDAT Output Remote control indication data output
9 TxD1 DSPDAT Output Unit indication data output
10 P32 PCRX Input Spare
11 P33 DSPSTB Output Main unit's 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 EPWP Output EEPROM write protection
18 Vss VSS — Ground potential
19 PE4 _EJSW Input Ejection lever opertion detection input
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 CKSTP Output Microcomputer stand by operation monitor
33 PC1 _XRST Output System LSI hand reset output
34 PC2 SENSE Input System LSI servo sense input
35 PC3 _FOK Input Focus OK signal input
36 PC4 RCLAT Output Record audio IC data latch output
37* PC5 TEST1 Input Test mode setting input 1
38* PC6 TEST0 Input Test mode setting input 0
39 PC7 EMPH0 Output Audio emphasis control output 0
40 Vcc VCC — Positive power supply
41 PB0 _MCPGI Intput Microphone plug insertion detection input
42 PB1 _INPGi Intput Line/digital plug insertion detection
43 PB2 INPGCK Intput Line/digital plug type detection
44 PB3 RADAT Output RF/Audio IC serial data output
45 PB4 RACLK Output RF/Audio IC data clock output
46 PB5 PBOPON Output Audio IC output stage control output
47 PB6 PBLAT Output Audio IC data lactch output
48 PB7 _LCDRST Intput LCD driver reset output
49 Vss VSS — Ground potential
50 PA0 _ELON Output EL light control output
51* PA1 PA1 Output Spare
52* PA2 PA2 Output Spare
53 PA3 RFLAT Output FL amplifier IC data latch output
54* P20 P20 Output Spare
55 P21 _REC Input Unit REC buttom operation detection input
56 TIOCC3 BUZOUT Output Beep sound pulse output
57 MD0 MD0 Input Operation mode selection input 0

Input/Output

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

FunctionPort Name Terminal Name

– 35 –

MD-SR50H/50W/60E/60W

IC401 RH-iX0341AWZZ: System Microcomputer (IX0341AW) (2/3)

Pin No.

58 MD1 MD1 Input Operation mode selection input 1
59 P23 _PLAY Input Unit PLAY button operation detection input
60 WDTOVF WDTOVF Output Watch dog timer (not used)
61 MD2 MD2 Input Operation mode selection input 2
62 RES _RESET Input Microcomputer hard reset input
63 NMI _NMI Input Nonmaskable interruption (not used)
64 STBY _STBY Input Microcomputer standby input (not used)
65 Vcc VCC — Positive power supply
66 XTAL XTAL — Crystal connection terminal
67 EXTAL EXTAL — Crystal connection terminal
68 Vss VSS — Ground potential
69 PF7 _DCEXT Input DC-IN detection input
70 PF6 PCNT2 Output Vcc supply control output of power IC
71 PF5 PCNT1 Output Vref supply control output of power IC
72 PF4 RCPCNT Input/Output Record cir cuit power control output
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
76 IRQ0 _ARQK Input It is started by the button input, requirement
77 AVcc AVCC — A/D and D/A converter positive power supply
78 Vref VREF — A/D and D/A converter reference voltage
79 AN0 PLVBAT Input Battery voltage detection input
80 AN1 PLCHK Input Power supply circuit abnormal detection input
81 AN2 HKEY2 Input Unit key operation detection input 2
82 AN3 HKEY1 Input Unit key operation detection input 1
83 AN4 RKEY Input Remote control key operation detection
84 AN5 TEMP Input Ambient temperature detection inputinput
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 PLVOW Output Battery voltage measurement
90* TIOCB4 MCMON Output Internal openation status monitor
91* P26 P26 Output Spare
92 P27 PLVGN Output Battery voltage detection gain select output
93 PG0 CHGON Output Ni-MH Battery charge ON output
94 PG1 JPNP Input Kana conversion/Kana input existencel nonexistence discrimination
95 PG2 _KHOLD Input Unit key hold switch input
96 PG3 LDON Output P.U. laser ON/OFF control output
97 PG4 OPICGA Output P.U. detection sensitivity switching output
98 Vcc VDD — Positive power supply
99 P10 DCNT Output Mechanism driver enable output
100 P11 HDON Output Recording head current control output

Input/Output

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

FunctionPort Name Terminal Name

– 36 –

MD-SR50H/50W/60E/60W

IC401 RH-iX0341AWZZ: System Microcomputer (IX0341AW) (3/3)

System LSI expansion output port (6th generation: LR37811)

Pin No.

52 EXPORT0 LDCNT1 Output Recording head raising-lowering control output 1 See the separate table *3.
53 EXPORT1 LDCNT2 Output Recording head raising-lowering control output 2 See the separate table *3.
54 EXPORT2 — Output Not used. (Open)
55 EXPORT3 EMPH1 Output Audio emphasis control output 1 See the separate table *2.
56 EXPORT4 — Output Not used. (Open)
57 EXPORT5 OPTCNT Output Optical digital input circuit control 'H': Circuit operation ON
58 EXPORT6 DAPON Output D/A converter operation control output 'H': Operation ON
59 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'

Details

*3: List of LDCNT port settings

LDCNT1 LDCNT0

H H Brake
H L Drive UP
L H Drive DOWN
L L Output OFF

Details

– 37 –

MD-SR50H/50W/60E/60W

— M E M O —

– 38 –

PARTS GUIDE

MD-SR50H/50W/60E/60W

MODEL

“HOW TO ORDER REPLACEMENT PARTS”

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

1. MODEL NUMBER 2. REF. No.

3. PART NO. 4. DESCRIPTION

MARK: SPARE PARTS-DELIVERY SECTION

MD-SR50H(BL)
MD-SR50H(S)
MD-SR50H(YR)
MD-SR50W(BL)
MD-SR50W(S)
MD-SR60E(GJ)
MD-SR60W(S)

For U.S.A. only

Contact your nearest SHARP Parts Distributor to order.

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

Explanation of capacitors/resistors parts codes

Capacitors

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

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

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

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

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

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

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

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

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

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

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

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

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.

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.

– 39 –

MD-SR50H/50W/60E/60W

PARTS CODE NO. PARTS CODE

PRICE

RANK

DESCRIPTIONNO.

INTEGRATED CIRCUITS

IC101 VHIIR3R55//-1 J AQ RF Signal Processor,IR3R55
IC201 VHILR37811/-1 J BB ENDEC/SERVO/ATRAC,

IC202 RH-IX2567AFZZ J BA 4M D-RAM,IX2567AF
IC203 VHI62FP2002-1 J AE 2V Regulator,62FP2002
IC251 VSFTD2017++-1 J AC N-ch MOS FET,FTD2017
IC253 VHIRN4904//-1 J AD Digital Transistor,RN4904
IC255 VHINJM022V/-1 J AG OP AMP,NJM022V
IC256 VSRN4911+++-1 J AD Digital Transistor,RN4911
IC257 VHIS80808LN-1 J AE Reset,S80808LN
IC258,259 VHIHN1C01FU-1 J AD Transistor,HN1C01FU
IC260 VHIRN4904//-1 J AD Digital Transistor,RN4904
IC351 VHI74ACT02T-1 J AE NOR Gate,74ACT02T
IC353 VHIFTD2005/-1 J AG N-ch MOS FET,FTD2005
IC354 VHICPH5608/-1 J AH N-ch MOS FET,CPH5608
IC401 RH-IX0341AWZZ J System Microcomputer,

IC402 VHI58X2402T-1 J AF EEPROM,58X2402T
IC431 VHIS80820LN-1 J AD Reset,S80820LN
IC501 VHIAK4550VT-1 J AV AD/DA Converter,AK4550VT
IC601 VHILV8017W+-1 J AT 4-CH PWM Driver,LV8017W
IC621 VHIRN4904//-1 J AD Digital Transistor,RN4904
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 VHI62GR2522-1 J AG 2.5V Regulator,62GR2522
IC801 VHI62RP2002-1 J AF 2.0V Regulator,62RP2002
IC802 VHIHN1C01FU-1 J AD Power Transistor,HN1C01FU
IC803 VHIS80819LN-1 J AE Reset IC,S-80819LN
IC809 VHIRN4904//-1 J AD Digital Transistor,RN4904
IC821 VHICPH3403/-1 J AE N-ch MOS FET,CPH3403
IC822 VHIIR3M14N/-1 J AK DC/DC Converter,IR3M14N
IC841 VHI6372C281-1 J AH 2.8V UP Converter,6372C281
IC842 VHIXC62HS02-1 J A E 2.35V Regulator,XC62HS02
IC851 VHICPH3403/-1 J AE N-ch MOS FET,CPH3403
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

LR37811

IX0341AW

TRANSISTORS

Q101 VS2SA17457/-1 J AB Silicon,PNP,2SA17457
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 VHDHSB2838+-1 J AC Silicon,HSB2838
D461 VHDRB731U//-1 J AC Silicon,RB731U
D492 VHEMA8075M/-1 J AC Zener,MA8075M
D494~496 VHEMA8075M/-1 J AC Zener,MA8075M
D622 VHEMA8075M/-1 J AC Zener,MA8075M
D651 VHDF10J2E//-1 J AC Schottky,F10J2E
D801 VHDF05J2L//-1 J AC Schottky,F05J2L
D802 VHEMA8051M/-1 J Zener,MA8051M
D803 VHDRB520S30-1 J AC Schottky,RB520S30
D821 VHDD1FH3+++-1 J AE Schottky,D1FH3
D822,823 VHDF10J2E//-1 J AC Schottky,F10J2E
D831,832 VHDHRB0103B-1 J AC Schottky,HRB0103B
D841 VHDF10J2E//-1 J AC Schottky,F10J2E
D842 VHDHRB0103B-1 J AC Schottky,HRB0103B
D851 VHDD1FH3+++-1 J AE Schottky,D1FH3
D861,862 VHDF10J2E//-1 J AC Schottky,F10J2E
PH901(8-2) VHPGP1S93K/-1 J AF Photo Interrupter

PRICE
RANK

DESCRIPTION

COILS

L100 VPBNN100K0000 J AC 10 µH
L171 RCILC0356AFZZ J AC 10 µH
L491 VRS-TV2AB330J J AA 33 ohms,1/10W
L500 RCILC0344AFZZ J AC 47 µH,Choke
L601~604 RCILC0358AFZZ J AC 4.7 µH,Choke
L608~610 RCILC0358AFZZ J AC 4.7 µH,Choke
L702~704 RCILC0353AFZZ J AB Tip Solid Induction,100mA
L710 VRS-TV2AB470J J AA 47 ohms,1/10W
L771 RCILC0359AFZZ J AC 100 µH,Choke
L800,801 RCORF0017AWZZ J AE Tip Impeder
L821 RCILC0005AWZZ J AF 10 µH,Choke
L841 RCILC0358AFZZ J AC 4.7 µH,Choke
L851 RCILC0008AWZZ J 22 µH,Choke
L862 RCILC0359AFZZ J AC 100 µH,Choke
L871 VPBNNR47K0000 J AC 0.47 µH

VIBRATORS

XL201 RCRSC0028AFZZ J AH Crystal,33.868 MHz
XL401 RCRM-0201AFZZ J AD Ceramic,4.19 MHz

CAPACITORS

C100 VCSATA0JJ106M J AD 10 µF,6.3V,Electrolytic,Tantalum
C102,103 VCKYTV1AB105K J AD 1 µF,10V
C104 VCKYCY1CB273K J AA 0.027 µF,16V
C106 VCKYTV1CB224K J AB 0.22 µF,16V
C107 VCKYCY1EB123K J AA 0.012 µF,25V
C109 VCKYTV1AB105K J AD 1 µF,10V
C110 VCKYTV1CB224K J AB 0.22 µF,16V
C111 VCKYCY1HB332K J AA 0.0033 µF,50V
C112 VCKYCY1CB333K J AA 0.033 µF,16V
C121,122 VCCCCY1HH271J J AA 270 pF (CH),50V
C123,124 VCCSCY1HL391J J AA 390 pF,50V
C130 VCKYCY1CB104K J AB 0.1 µF,16V
C161 VCKYTV1AB105K J AD 1 µF,10V
C165 VCKYCY1CB333K J AA 0.033 µF,16V
C171,172 RC-SZ1144AFZZ J AD 33 µF,6.3V,Electrolytic,Tantalum
C201 VCKYTQ1CB105K J AD 1 µF,16V
C202 VCSATE0JJ476M J AD 47 µF,6.3V,Electrolytic,Tantalum
C203 VCKYCY1CB104K J AB 0.1 µF,16V
C204 VCKYTV1CB474K J AC 0.47 µF,16V
C205 VCKYCY1CB104K J AB 0.1 µF,16V
C206 VCKYTV1AB105K J AD 1 µF,10V
C207 VCKYCY1CB104K J AB 0.1 µF,16V
C209 VCCCCY1HH220J J AA 22 pF (CH),50V
C211,212 VCCCCY1HH5R0C J AA 5 pF (CH),50V
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 VCKYTV1AB105K J AD 1 µF,10V
C351 VCCCCY1HH270J J AA 27 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 VCKYTV1CB474K J AC 0.47 µF,16V
C454 VCKYCY1HB222K J AA 0.0022 µF,50V
C481,482 VCKYTQ1CB105K J AD 1 µF,16V
C491 VCKYTV1CB104K J AA 0.1 µF,16V
C492 VCKYTV1AB105K J AD 1 µF,10V
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 VCKYTV1AB105K J AD 1 µF,10V
C551 VCKYCY1CB104K J AB 0.1 µF,16V
C601~604 VCKYTV1AB105K J AD 1 µF,10V
C605 VCKYCY1CB104K J AB 0.1 µF,16V
C606 RC-SZ0001AWZZ J AG 22 µF,6.3V,Electrolytic
C608 VCKYTQ1CB105K J AD 1 µF,16V
C609,610 VCKYTV1AB105K J AD 1 µF,10V
C622 VCKYCY1CB104K J AB 0.1 µF,16V
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

– 1 –

MD-SR50H/50W/60E/60W

NO. PARTS CODE

C704 VCSATE0JJ476M J AD 47 µF,6.3V,Electrolytic,Tantalum
C711,712 VCCCCY1HH101J J AA 100 pF (CH),50V
C713,714 VCKYTV1AB105K J AD 1 µF,10V
C715 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 VCKYTV1CF105Z J AB 1 µF,16V
C754 VCKYTV1AB105K J AD 1 µF,10V
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 VCKYTV1AB105K J AD 1 µF,10V
C802 VCKYCY1EB103K J AA 0.01 µF,25V
C803 VCKYCY1CB104K J AB 0.1 µF,16V
C804 VCKYTV1CB104K J AA 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 VCKYTQ1CB105K J AD 1 µF,16V
C826 VCCCCY1HH101J J AA 100 pF (CH),50V
C827 VCCCCY1HH221J J AA 220 pF (CH),50V
C828 VCKYTV1AB105K J AD 1 µF,10V
C830 VCKYTV1AB105K J AD 1 µF,10V
C832~835 VCKYCY1CB104K J AB 0.1 µF,16V
C836 VCKYTQ1CB105K J AD 1 µF,16V
C837 VCKYTV1AB105K J AD 1 µF,10V
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 VCKYTV1AB105K J AD 1 µF,10V
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 VCKYTV1AB105K J AD 1 µF,10V
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 VCCCCY1HH331J J AA 330 pF (CH),50V
C857 VCKYCY1HB561K J AA 560 pF,50V
C860 VCKYTV1AB105K J AD 1 µF,10V
C862,863 VCKYTV1AB105K J AD 1 µF,10V
C868 VCKYTV1CF105Z J AB 1 µF,16V
C869 VCSATE0JJ476M J AD 47 µF,6.3V,Electrolytic,Tantalum
C872 VCSATA1AJ106M J AE 10 µF,10V,Electrolytic,Tantalum
C876 VCKYTV1AB105K J AD 1 µF,10V
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 VCKYCY1CB223K J AA 0.022 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

R101~104 VRS-CY1JB223J J AA 22 kohms,1/16W

VRS-CY1JB000J J AA

R105 VRS-CY1JB394J J AA 390 kohms,1/16W
R106 VRS-CY1JB563J J AA 56 kohms,1/16W
R154 VRS-CY1JB122J J AA 1.2 kohms,1/16W
R161 VRS-CY1JB122J J AA 1.2 kohms,1/16W
R202 VRS-TV2AB330J J AA 33 ohms,1/10W
R204 VRS-CY1JB102J J AA 1 kohm,1/16W
R205 VRS-CY1JB334F J AA 330 kohms,1/16W
R206 VRS-CY1JB274F J AA 270 kohms,1/16W
R222 VRS-CY1JB105J J AA 1 Mohm,1/16W
R250,251 VRS-CY1JB101J J AA 100 ohm,1/16W
R252 VRS-CY1JB154D J AA 150 kohms,1/16W
R253 VRS-CY1JB393D J AA 39 kohms,1/16W
R254 VRS-CY1JB223J J AA 22 kohms,1/16W

0 ohm,Jumper,0.8×1.55mm,Green

NO.

R255 VRS-CY1JB472J J AA 4.7 kohms,1/16W
R256 VRS-CY1JB563J J AA 56 kohms,1/16W
R257 VRS-CY1JB273D J AA 27 kohms,1/16W
R261 VRS-CY1JB102J J AA 1 kohm,1/16W
R262,263 VRS-CY1JB683D J AA 68 kohms,1/16W
R266 VRS-CY1JB563D J AA 56 kohms,1/16W
R267 VRS-CY1JB103D J AA 10 kohm,1/16W
R269 VRS-CY1JB303D J AA 30 kohms,1/16W
R270,271 VRS-CY1JB683D 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-TV2AB4R7J J AA 4.7 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
R407 VRS-CY1JB103J J AA 10 kohm,1/16W
R408 VRS-CY1JB104J J AA 100 kohm,1/16W
R411 VRS-CY1JB102J J AA 1 kohm,1/16W
R412 VRS-CY1JB153J J AA 15 kohms,1/16W
R413~415 VRS-CY1JB102J J AA 1 kohm,1/16W
R416 VRS-CY1JB104J J AA 100 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
R443 VRS-CY1JB123J J AA 12 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
R463~465 VRS-CY1JB104J J AA 100 kohm,1/16W
R466 VRS-CY1JB564J J AA 560 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
R621 VRS-CY1JB104J J AA 100 kohm,1/16W
R622 VRS-CY1JB102J J AA 1 kohm,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-CY1JB562J J AA 5.6 kohms,1/16W
R713,714 VRS-CY1JB103J J AA 10 kohm,1/16W
R715,716 VRS-CY1JB104J J AA 100 kohm,1/16W
R717,718 VRS-CY1JB102J J AA 1 kohm,1/16W
R719,720 VRS-CY1JB822J J AA 8.2 kohms,1/16W
R723,724 VRS-CY1JB682J J AA 6.8 kohms,1/16W
R725 VRS-CY1JB101J J AA 100 ohm,1/16W
R726 VRS-CY1JB393J J AA 39 kohms,1/16W
R727 VRS-CY1JB822J J AA 8.2 kohms,1/16W
R728 VRS-CY1JB102J J AA 1 kohm,1/16W
R729,730 VRS-CY1JB272J J AA 2.7 kohms,1/16W
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-CY1JB224J J AA 220 kohms,1/16W
R762 VRS-CY1JB913J J AA 91 kohms,1/16W
R765,766 VRS-CY1JB150J J AB 15 ohms,1/16W
R767,768 VRS-CY1JB4R7J J AA 4.7 ohms,1/16W

PRICE

RANK

DESCRIPTIONPARTS CODE

– 2 –

MD-SR50H/50W/60E/60W

PARTS CODE NO. PARTS CODE

R801 VHHSMDM110V-1 J AK Conductive Resin Switch
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-CY1JB335J J AA 3.3 Mohms,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
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-CY1JB103J J AA 10 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

PRICE

RANK

DESCRIPTIONNO.

OTHER CIRCUITRY PARTS

CN101 QCNCW801XAFZZ J AH Socket,22Pin
CN451 QCNCW804NAFZZ J AE Socket,13Pin
CN482 QCNCW804JAFZZ J AE Socket,9Pin
CN601 QCNCW716RAFZZ J AF Socket,16Pin

! F841 QFS-L401AAFNZ J Sguare Tip Type Fuse,0.4A,

J701 VHLGP1FB95R-1 J AP Jack,OPTICAL/LINE IN
J702 QJAKM0014AWZZ J AF Jack,Mic IN
J703 QJAKM0015AWZZ J AL Jack,Remote Control/Head-

J801 QJAKC0007AWZZ J AF Jack,DC IN
M901 RMOTV0028AWZZ J Motor Ass’y [Spindle]
M902 RMOTV0511AFZZ J AT Motor Ass’y [Sled]
M903 RMOTV0512AFM1 J AR Motor Ass’y [Lift]
SW401 QSW-M0001AWZZ J AD Switch,Push Type [EJECT]
SW402 QSW-S0948AFZZ J AC Switch,Slide Type [HOLD]
SW403 QSW-M0001AWZZ J AD Switch,Push Type

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

DC 60V

phones

[LID DETECTION]

MECHANICAL PARTS

1 NGERH0597AFZZ J AC Wheel,Drive
2 NSFTD0334AFZZ J AD Screw,Drive
3 MARMM0170AFM1 J AK Bracket,Magnetic Field Ass’y
5 LHLDX3141AFM1 J AP Cartridge Holder Ass’y
6 LCHSM0097AWM1 J Main Chassis Ass’y
7 PCUSG0599AFZZ J AB Cushion
8 QPWBH0004AWM1 J Magnetic Flexible PWB Ass’y
8- 1 ———— — Magnetic Flexible PWB

8- 2(PH901) VHPGP1S93K/-1 J AF Photo Interrupter
8- 3(SW902) QSW-M0170AFZZ J AD Switch,Push Type [Disc Protect]
9 MLEVF2641AFZZ J Lever,Eject
11 MSPRP0923AFZZ J Spring,Thrust Plate
12 MSPRP0925AFZZ J Spring,Drive Screw
13 NGERH0603AFZZ J AE Gear,Drive
14 LANGF1610AFZZ J AC Bracket,Cancel

! 15 RCTRH8194AFZZ J BM Optical Pickup Unit

16 MSPRP0922AFFJ J AD Spring,Drive Grip
17 NSFTM0292AFFW J AC Shaft,Guide
18 MSPRT1625AFFJ J AD Spring,Eject Lever
19 MLEVF2637AFM1 J AH Lift Working Lever Ass’y
20 MLEVF2640AFZZ J Lever,Lift

(Not Replacement Item)

PRICE
RANK

21 RCILH0002AWZZ J Magnetic Head
22 PCOVP1339AFZZ J AD Cover,Mechanism
23 QPWBH0338AFZZ J AH Magnetic Head Flexible PWB
24 MLEVF2639AFFW J AD Lever,Lift Joint
25 MLEVF2638AFFW J AD Lever,Block
26 MSPRD1362AFFJ J AD Spring,Lift Lever
501 LX-BZ0800AFZZ J AA Screw,ø1.4×2.5mm
502 LX-BZ0804AFFF J AA Screw,ø1.4×2.2mm
503 LX-BZ0823AFZZ J AA Screw,ø1.4×1.2mm
504 LX-JZ0148AFZZ J AA Screw,ø1.7×3mm
505 LX-JZ0154AFZZ J AA Screw,ø1.4×2.8mm
506 LX-WZ9290AFZZ J AA Washer,ø0.8×ø2.4×0.2mm
507 XSPSN14P01500 J AA Screw,ø1.7×2.5mm
508 XWSSD14-05000 J AA Washer,ø1.4×0.5mm
509 LX-BZ0974AFZZ J AB Screw,ø1.4×5.5mm
510 LX-WZ9296AFZZ J AA Washer,ø1.5×ø3.5×0.25mm
511 LX-BZ0991AFZZ J AB Screw,ø1.2×1.6mm
512 LX-BZ1001AFZZ J Screw,ø1.4×2.3mm
M901 RMOTV0028AWZZ J Motor Ass’y [Spindle]
M902 RMOTV0511AFZZ J AT Motor Ass’y [Sled]
M903 RMOTV0512AFM1 J AR Motor Ass’y [Lift]

DESCRIPTION

CABINET PARTS

201 GFTAT3008AWM1 J AW Top Cabinet
201 GFTAT3008AWM2 J AW Top Cabinet
201 GFTAT3008AWM3 J AW Top Cabinet [SR50H-YR]

201 GFTAT3009AWM1 J Top Cabinet [SR60W]
201 GFTAT3009AWM2 J AM Top Cabinet [SR60E]
202 GCABA1194AWSA J AH Center Cabinet

202 GCABA1194AWSB J AH Center Cabinet
203 GFTAU3019AWSA J AS Bottom Cabinet [SR50H-S]

203 GFTAU3023AWSA J AS Bottom Cabinet [SR50H-BL]
203 GFTAU3024AWSA J AS Bottom Cabinet [SR50H-YR]
203 GFTAU3025AWSA J AS Bottom Cabinet [SR50W-S]
203 GFTAU3026AWSA J Bottom Cabinet [SR50W-BL]
203 GFTAU3027AWSA J Bottom Cabinet [SR60W]
203 GFTAU3028AWSA J AS Bottom Cabinet [SR60E]
204 HDECQ0527AWSA J AM Decoration Plate [Except for

204 HDECQ0527AWSB J AM Decoration Plate
204 HDECQ0527AWSC J AM Decoration Plate [SR60E]

204 HDECQ0527AWSD J AM Decoration Plate [SR50H-YR]
205 PSHET0021AWZZ J AD Insulation Sheet,Bottom Cabinet
206 PSHEF0019AWZZ J AB Felt
207 GDORB0002AWSA J AF Cover,Battery

207 GDORB0002AWSB J AF Cover,Battery
208 JKNBZ0666AWSA J AF Knob,Eject

209 JKNBZ0625AWSA J AD Knob,Hold
210 TCAUS0044AWZZ J AB Label A,Class 3B
211 TCAUS0043AWZZ J AC Label B,Class 3B
212 LANGT0065AWFW J AG Bracket,Display
213 RUNTK0006AWZZ J AQ Key Flexible PWB Ass’y
214 RUNTZ0016AWZZ J BB LCD Ass’y
215 JKNBZ0667AWSA J AK Button,Operation
216 PSHEZ0066AWZZ J AB Sheet,LCD C
217 PSHEZ0069AWZZ J Sheet,Key Flexible PWB
218 PCUSZ0016AWZZ J AB Cushion,Display Bracket
219 PSHET0020AWZZ J AB Sheet,Jack
220 PCUSZ0015AWZZ J AB Cushion,Mechanism Front
221 PSHEZ0068AWZZ J Spacer,Mechanism
222 PCUSZ0014AWZZ J AB Cushion,Mechanism Right
223 PCUSZ0022AWZZ J Cushion,Mechanism
224 PCUSG0051AWZZ J AC Rubber,Preventive Vibration B
225 PCUSG0050AWZZ J AC Rubber,Preventive Vibration A
226 MSPRP0033AWFW J AC Spring B,Cartridge
227 PGIDM0030AW00 J AC Guide,Battery Terminal
228 PCOVW1008AW01 J Cover,Battery Terminal,+
229 QTANB9020AWFQ J AD Terminal,Battery +
230 LANGZ0029AWFW J AE Bracket,Side
231 PSHEZ0051AWZZ J AC Sheet,Operation Button A
232 PSHEZ0052AWZZ J AC Sheet,Operation Button B
233 PCUSS0047AWZZ J AB Cushion,LCD B
234 PCUSS0046AWZZ J AB Cushion,LCD A

[SR50H-S/SR50W-S]
[SR50H-BL/SR50W-BL]

[Except for SR50H-YR/SR60E]
[SR50H-YR/SR60E]

SR50H-YR/SR50H-BL/
SR50W-BL/SR60E]

[SR50H-BL/SR50W-BL]

[Except for SR50H-YR/SR60E]
[SR50H-YR/SR60E]

– 3 –

MD-SR50H/50W/60E/60W

NO. PARTS CODE

236 MSPRP0032AWFW J AB Spring A,Cartridge
237 LHLDZ3012AWM1 J AF Main Frame Ass’y
240 MSPRP0034AWFW J AB Spring C,Cartridge
241 PCUSZ0021AWZZ J Cushion,Display Bracket
242 PSPAP0002AW00 J Spacer,Top Cabinet
601 LX-BZ1008AFFC J AB Screw,ø1.4×2mm
602 LX-BZ0048AWFN J Screw,ø1.4×2.5mm
603 LX-CZ0107AFFF J AA Screw,ø1.2×2.5mm
605 LX-BZ0805AFFN J AB Screw,ø1.7×2.5mm

PRICE

RANK

DESCRIPTION

ACCESSORIES/PACKING PARTS

1 RPHOH0005AWZZ J AX Earphones
2 RPHOH0001AWZZ J AW Headphones
3 RRMCW0002AWZZ J Remote Control
4 UBAGC0003AWZZ J Battery Case
5 TINSE0295AWZZ J Quick Guide [SR60E]

5 TINSE0296AWZZ J Quick Guide [SR50H for U.K.]
6 SPAKZ0599AWZZ J Pad,AC Adapter [SR50H/SR60E]
6 SPAKZ0600AWZZ J Pad,AC Adapter [SR50W Except

6 SPAKZ0601AWZZ J Pad,AC Adapter [SR50W for

! 7 RADPA5402AFZZ J BF AC Adapter [SR50W Except for
! 7 RADPA6435AFZZ J BG AC Adapter [SR50W for
! 7 RADPA7045AWZZ J AX AC Adapter [SR50H for Europe]

! 7 RADPA8046AWZZ J AC Adapter
! 7 RADPA8493AFZZ J BH AC Adapter [SR60W]

8 QCNWG0382AFZZ J AK Connecting Cord,RCA Type
9 SPAKA0237AWZZ J Packing Add.
10 TINSE0289AWZZ J Operation Manual [SR60E]
10 TINSE0290AWZZ J Operation Manual

10 TINSE0291AWZZ J Operation Manual [SR50W for
10 TINSZ0519AWZZ J Operation Manual [SR60W]

10 TINSZ0520AWZZ J Operation Manual
10 TINSZ0521AWZZ J Operation Manual

11 SPAKZ0490AWZZ J AC Operation Manual Spacer

12 UBAGC0006AWSA J Carrying Case
13 SPAKC0944AWZZ J Packing Case [SR60W]
13 SPAKC0945AWZZ J Packing Case [SR60E]
13 SPAKC0948AWZZ J Packing Case

13 SPAKC0949AWZZ J Packing Case
13 SPAKC0950AWZZ J Packing Case [SR50H-YR]

13 SPAKC0951AWZZ J Packing Case [SR50W-S]
13 SPAKC0952AWZZ J Packing Case [SR50W-BL]
13 SPAKC0970AWZZ J Packing Case

13 SPAKC0971AWZZ J Packing Case
15 TLABE0354AWZZ J Label,Bar Code [SR60E]

15 TLABE0355AWZZ J Label,Bar Code [SR50H-S]
15 TLABE0356AWZZ J Label,Bar Code [SR50H-BL]
15 TLABE0357AWZZ J Label,Bar Code [SR50H-YR]
15 TLABE0358AWZZ J Label,Bar Code [SR50W-S for

15 TLABE0359AWZZ J Label,Bar Code [SR50W-BL for
16 TCADS0003AWZZ J Service Card
17 92LG-CARD1266E J AB Guarantee Card [SR50W for
18 QCNWG0422AFZZ J AQ Connecting Cord,Optical Type
19 SSAKH0037AWZZ J Bag,SET

20 SPAKZ0624AWZZ J Pad,Protection

[SR60W/SR60E Only]
[SR50H/SR50W Only]
[SR60W/SR60E Only]
[SR60W/SR60E Only]

for Australia/New Zealand]
Australia/New Zealand/SR60W]
Australia/New Zealand]
Australia/New Zealand]

[SR60E/SR50H for U.K.]

[SR50H for U.K.]
Australia/New Zealand]

[SR50H for Europe]
[SR50W Except for Australia/

New Zealand]
[SR60W/SR60E/SR50H for

U.K. Only]

[SR50H-S for Europe]
[SR50H-BL for Europe]

[SR50H-S for U.K.]
[SR50H-BL for U.K.]

Australia/New Zealand]
Australia/New Zealand]
[SR50H for U.K./SR60E Only]
Australia/New Zealand Only]
[SR60W/SR60E Only]

NO.

PRICE

RANK

DESCRIPTIONPARTS CODE

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

PWB-A 92LPWB3355MDSS J — Main

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

(TEAC Test MD)
(TEAC Test MD)
(TEAC Test MD)

– 4 –

MD-SR50H/50W/60E/60W

502x2

A

B

501

508x2

3

507

8

8-1

8-2
(PH901)

511

17

16

21

8-3

(SW902)

23

512

C

505x3

504

503

15

M901

2

12

504

19

11

D

M903

509

7

1

510

24

503x2

E

6

506

13

25

F

22

503

M902

14

G

5

20

9

H

26

18

1

23456

Figure 5 MD MECHANISM EXPLODED VIEW

– 5 –

MD-SR50H/50W/60E/60W

MD MECHANISM

A

242

204

225x2

220

B

237

601

x2

C

234

201

233

601x2

202

219

220

221

222

224

223

214

D

210

208

207

230

216

231

215

PWB-A

E

232

227

601

228

229

205

217

F

213

236

206

605x4

218

603

G

241

212

601x2

203

601

240

241

226

211

602

235

601x2

H

1

23456

Figure 6 CABINET EXPLODED VIEW

– 6 –

601

209

MD-SR50H/50W/60E/60W

PACKING METHOD (MD-SR50H FOR U.K./SR60E ONLY)

Setting position of switches and knobs

UNIT HOLD OFF
Remote Control HOLD CANCEL

1 RPHOH0005AWZZ Earphones [SR60E Only]
2 RPHOH0001AWZZ Headphones [SR50H for U.K.]
3 RRMCW0002AWZZ Remote Control [SR60E Only]
4 UBAGC0003AWZZ Battery Case [SR60E]
5 TINSE0295AWZZ Quick Guide [SR60E]
5 TINSE0296AWZZ Quick Guide [SR50H for U.K.]
6 SPAKZ0599AWZZ Pad, AC Adapter
7 RADPA8046AWZZ AC Adapter
8 QCNWG0382AFZZ Connecting Cord, RCA Type
9 SPAKA0237AWZZ Packing Add.
10 TINSE0289AWZZ Operation Manual [SR60E]

5

16

18
(MD-SR60E
Only)

11

10 TINSE0290AWZZ Operation Manual

[SR50H for U.K.]
11 SPAKZ0490AWZZ Operation Manual Spacer
12 UBAGC0006AWSA Carrying Case
13 SPAKC0945AWZZ Packing Case [SR60E]
13 SPAKC0970AWZZ Packing Case

[SR50H-S for U.K.]
13 SPAKC0971AWZZ Packing Case

[SR50H-BL for U.K.]
15 TLABE0354AWZZ Label, Bar Code [SR60E]
15 TLABE0355AWZZ Label, Bar Code [SR50H-S]
15 TLABE0356AWZZ Label, Bar Code [SR50H-BL]
16 TCADS0003AWZZ Service Card
18 QCNWG0422AFZZ Conneting Cord, Optical Type

[SR60E Only]
19 SSAKH0037AWZZ Bag, SET
20 SPAKZ0624AWZZ Pad, Protection

10

3(MD-SR60E Only)

8

BATTERY

4

20

1(MD-SR60E Only)

13

12

19

15

2

7

6

9

– 7 –

— M E M O —

MD-SR50H/50W/60E/60W

– 8 –

MD-SR50H/50W/60E/60W

COPYRIGHT 2000 BY SHARP CORPORATION

©

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.

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

Printed in Japan

A0002-4543NS•HA•M

SG • SK • SCA • SCNZ • EX