Sony MDS-PC3 User Manual

MDS-PC3

SERVICE MANUAL

Photo: SILVER

US and foreign patents licensed form Dolby Laboratories Licensing Corporation.

SPECIFICATIONS

US Model

Canadian Model

AEP Model

UK Model

E Model

Model Name Using Similar Mechanism MDS-JE640 MD Mechanism Type MDM-7A Optical Pick-up Type KMS-260B/J1N

System MiniDisc digital audio system Disc MiniDisc Laser Semiconductor laser (λ = 780 nm)

Laser output Less than 44.6 µW*

Laser diode Material: GaAlAs Revolutions (CLV) 400 rpm to 900 rpm Error correction Advanced Cross Interleave Reed

Sampling frequency 44.1 kHz Coding Adaptive Transform Acoustic

Modulation system EFM (Eight-to-Fourteen

Number of channels 2 stereo channels Frequency response 5 to 20,000 Hz ±0.5 dB Signal-to-noise ratio Over 94 dB during playback Wow and flutter Below measurable limit

Inputs

LINE (ANALOG) IN Jack type: stereo-mini

DIGITAL (OPTICAL) IN Connector type: square optical

Outputs

LINE (ANALOG) OUT (VARIABLE)

DIGITAL (OPTICAL) OUT

PHONES Jack type: stereo-mini

Emission duration: continuous

* This output is the value

measured at a distance of 200 mm from the objective lens surface on the Optical Pick-up Block with 7 mm aperture.

Solomon Code (ACIRC)

Coding (ATRAC)

Modulation)

Impedance: 47 kilohms Rated input: 500 mVrms Minimum input: 125 mVrms

Impedance: 660 nm (optical wave length)

Jack type: stereo-mini Rated output: 1 Vrms (at

50 kilohms) Load impedance: Over 10 kilohms

Connector type: square optical Rated output: –18 dBm Impedance: 660 nm (optical wave

length)

Rated output: 5 mW

edance: 32 ohms

Load im

General

Where purchased Power requirements*

U.S.A. and Canada 120 V AC, 60 Hz

Other countries 220 – 230 V AC, 50/60 Hz

* Using an AC power adaptor (supplied)

Power consumption 7 W Dimensions (approx.) 152 × 52 × 255 mm (6 × 2

Mass (approx.) 1.0 kg (2 lb 4 oz)

Supplied accessories

• AC power adaptor (1)

• Audio connecting cord

(stereo mini-plug × 1 y stereo mini-plug × 1) (1)

• Optical cable (1)

• Remote commander (remote) RM-D52M (1)

• PC connecting kit PCLK-MN10* (1)

* Required for operation by personal computer. For

details, refer to the operating instructions supplied with the PCLK-MN10.

/8 inches) (w/h/d) incl.

projecting parts and controls

MINIDISC DECK

/8 ×

*Note:

As this unit has only a few buttons, one button is assigned with several functions in the test mode.” Press the z button, AMS knob to switch the functions.

• Each time the z button is pressed, the display switches in the follwing order, “PGM” t “blank” t “PGM” t –.

• Rotate the AMS knob and the display switches in the following order, “blank” t “TOC” t “EDIT” t “TOC EDIT” t

“[ ]” t “[TOC ]” t “[ EDIT]” t “[TOC EDIT]” t “blank” t – –.

For simplicity, operations of z button will not be discribed here.

Example) x/Z : Lights-out “PGM” and press the x/Z button.

x/Z “PGM” : Display “PGM” and press the x/Z button.

The functions of each button change with the display.

Bottons and Corresponding Functions

“PGM” Lights-out

Buttons

@/1 @/1

“PGM”

displayed

Nothing

displayed

ENTER

(YES) MODE

TOC EDIT TOC EDIT TOC EDIT TOC EDIT

REPEAT PLAY CLEAR

x/Z EJECT (EDIT)/ STOP REC — FR SCROLL TIME —

LCD displayed

PLAY

DISPLAY —

SELF-DIAGNOSIS FUNCTION

The self-diagnosis function consists of error codes for customers which are displayed automatically when errors occur, and error codes which show the error history in the test mode during servicing. For details on how to view error codes for the customer, refer to the following box in the instruction manual. For details on how to check error codes during servicing, refer to the following “Procedure for using the Self- Diagnosis Function (Error History Display Mode)”.

Self-Diagnosis Function

The deck’s self-diagnosis function automatically checks the condition of the MD deck when an error occurs, then issues a three-digit code and an error message on the display. If the code and message alternate, find them in the following table and perform the indicated countermeasure. Should the problem persist, consult your nearest Sony dealer.

Three-digit code/Message Cause/Remedy

C11/Protected The inserted MD is record-protected.

C12/Cannot Copy An attempt was made to play a disc that is not compatible with this deck

C13/Rec Error The recording was not made properly.

C13/Read Error The deck could not read the TOC on the MD properly.

, Take out the MD and close the record-protect slot (page 13).

(MD data disc, etc.).

, Replace the disc.

, Set the deck in a stable surface, and repeat the recording procedure.

The inserted MD is dirty (with smudges, fingerprints, etc.), scratched, or substandard in quality.

, Replace the disc and repeat the recording procedure.

, Take out the MD and insert it again.

Procedure for using the Self-Diagnosis Function (Error History Display Mode). Note: Perform the self-diagnosis function in the “error history display mode” in the test mode. The following describes the least required

procedure. Be careful not to enter other modes by mistake. If you set other modes accidentally, press the x/Z button to exit the mode.

C14/Toc Error The deck could not read the TOC on the MD properly.

C41/Cannot Copy The digitally dubbed material cannot be recorded digitally (page 11).

C71/Din Unlock The sporadic appearance of this message is caused by the digital signal being

E0001/MEMORY NG There is an error in the internal data that the deck needs in order to operate.

E0101/LASER NG

, Insert another disc. , If possible, erase all the tracks on the MD (page 29).

recorded. This will not affect the recording.

While recording from a digital component connected through the DIGITAL (OPTICAL) IN connector, the digital connecting cable was unplugged or the digital component turned off.

, Connect the cable or turn the digital component back on.

, Consult your nearest Sony dealer.

There is a problem with the optical pickup.

, Consult your nearest Sony dealer.

1. While pressing the AMS knob and x/Z button, connect the power plug to the outlet, and release the AMS knob and x/Z button.

When the test mode is set, “[Check]” will be displayed.

2. Rotate the AMS knob and when “[Service]” is displayed, press the @/1 button.

3. Rotate the AMS knob and display “Err Display”.

4. Pressing the @/1 button sets the error history mode and displays “op rec tm”.

5. Select the contents to be displayed or executed using the AMS knob.

6. Pressing the AMS knob will display or execute the contents selected.

7. Pressing the AMS knob another time returns to step 4.

8. Pressing the x/Z button displays “Err Display” and exits the error history mode.

9. To exit the test mode, remove the power plug to the outlet.

ITEMS OF ERROR HISTORY MODE ITEMS AND CONTENTS

Selecting the Test Mode

Display

op rec tm

op play tm

spdl rp tm

retry err

total err

err history

retry adrs

History

Displays the total recording time. When the total recording time is more than 1 minute, displays the hour and minute When less than 1 minute, displays “Under 1 min” The display time is the time the laser is set to high power, which is about 1/4 of the actual recording time.

Displays the total playback time. When the total playback time is more than 1 minute, displays the hour and minute When less than 1 minute, displays “Under 1 min”

Displays the total rotating time of the spindle motor. When the total rotating time is more than 1 minute, displays the hour and minute When less than 1 minute, displays “Under 1 min”

Displays the total number of retry errors during recording and playback Displays “r xx p yy”. xx is the number of errors during recording. yy is the number of errors during playback. This is displayed in hexadecimal from 00 to FF.

Displays the total number of errors Displays “total xx”. This is displayed in hexadecimal from 00 to FF.

Displays the past ten errors. Displays “0x ErrCd@@”. X is the history number. The younger the number, the more recent is the history (00 is the latest). @@ is the error code. Select the error history number using the AMS knob.

Displays the past five retry addresses. Displays “xx ADRS yyyy”, xx is the history number, yyyy is the cluster with the retry error. Select the error history number using the AMS knob.

er refresh

tm refresh

op change

spdl change

Mode for erasing the error and retry address histories Procedure

1. Press the AMS knob when displayed as “er refresh”.

2. Press the @/1 button when the display changes to “er refresh?”. When “complete!” is displayed, it means erasure has completed. Be sure to check the following after executing this mode. *Data has been erased. *Perform recording and playback, and check that the mechanism is normal.

Mode for erasing the total time of recording and playback Procedure

1. Press the AMS knob when displayed as “tm refresh”.

2. Press the @/1 button when the display changes to “tm refresh?”. When “complete!” is displayed, it means erasure has completed.

Mode for erasing the total time of op rec tm, op play tm. These histories are based on the time of replacement of the optical pickup. If the optical pick-up has been replaced, perform this procedure and erase the history. Procedure

1. Press the AMS knob when displayed as “op change”.

2. Press the @/1 button when the display changes to “op change?”. When “Complete!” is displayed, it means erasure has completed.

Mode for erasing the total spdl rp tm time These histories are based on the time of replacement of the spindle motor. If the spindle motor has been replaced, perform this procedure and erase the history. Procedure

1. Press the AMS knob when displayed as “spdl change”

2. Press the @/1 button when the display changes to “spdl change?” When “Complete!” is displayed, it means erasure has completed.

Table of Error Codes

Error Code

Could not load

Loading switches combined incorrectly

Timed out without reading the top of PTOC

Could read top of PTOC, but detected error

Timed out without accessing UTOC

Timed out without reading UTOC

Error in UTOC

Could not start playback

Error in sector

Retry cause generated during normal recording

Retried in DRAM overflow

Retry occurred during TOC writing

Retry aborted during S.F editing

Other than access processing, and could not read address.

Focus NG occurred and overran.

Description

TABLE OF CONTENTS

1. SERVICING NOTES ............................................. 5

2. GENERAL ........................................................................ 11

3. DISASSEMBLY

3-1. Case (U) .............................................................................. 14

3-2. MD Mechanism Deck (MDM-74) ...................................... 14

3-3. Main Board ......................................................................... 15

3-4. Over Light Head (HR901), BD (MD) Board ...................... 15

3-5. Holder Assy ......................................................................... 16

3-6. Loading Motor Assy (M103) .............................................. 16

3-7. Sled Motor Assy (M102), Slider ......................................... 17

3-8. Optical Pick-up (MD) (KMS-260B/JIN) ............................ 17

3-9. Spindle Motor Assy (M101) ............................................... 18

4. TEST MODE ..................................................................... 19

5. ELECTRICAL ADJUSTMENTS ............................... 24

6. DIAGRAMS

6-1. Block Diagrams

• BD Section ....................................................................... 36

• Main Section .................................................................... 37

6-2. Printed Wiring Board – BD Section –................................. 38

6-3. Schematic Diagram – BD Section (1/2) – ........................... 39

6-4. Schematic Diagram – BD Section (2/2) – ........................... 40

6-5. Printed Wiring Board – Main Section – .............................. 41

6-6. Schematic Diagram – Main Section (1/2) – ........................ 42

6-7. Schematic Diagram – Main Section (2/2) – ........................ 43

6-8. Printed Wiring Board – Panel Section – ........................... 44

6-9. Schematic Diagram – Panel Section – ............................... 45

6-10. IC Block Diagrams ........................................................... 46

6-11. IC Pin Functions ............................................................... 49

7. EXPLODED VIEWS

7-1. Chassis Section ................................................................... 54

7-2. Mechanism Section-1 (MDM-7A) ...................................... 55

7-3. Mechanism Section-2 (MDM-7A) ...................................... 56

8. ELECTRICAL PARTS LIST ........................................ 57

SECTION 1

1.5 k

Ω

0.15 µF

AC voltmeter (0.75 V)

To Exposed Metal Parts on Set

Earth Ground

SERVICE NOTES

NOTES ON HANDLING THE OPTICAL PICK-UP BLOCK OR BASE UNIT

The laser diode in the optical pick-up block may suffer electrostatic break-down because of the potential difference generated by the charged electrostatic load, etc. on clothing and the human body. During repair, pay attention to electrostatic break-down and also use the procedure in the printed matter which is included in the repair parts. The flexible board is easily damaged and should be handled with care.

NOTES ON LASER DIODE EMISSION CHECK

Never look into the laser diode emission from right above when checking it for adjustment. It is feared that you will lose your sight.

Laser component in this product is capable of emitting radiation exceeding the limit for Class 1.

This appliance is classified as a CLASS 1 LASER product. The CLASS 1 LASER PRODUCT MARKING is located on the rear exterior.

This caution label is located inside the unit.

CAUTION

Use of controls or adjustments or performance of procedures other than those specified herein may result in hazardous radiation exposure.

Notes on chip component replacement

• Never reuse a disconnected chip component.

• Notice that the minus side of a tantalum capacitor may be damaged by heat.

Lead free soldering

MAIN and PANEL boards of this product are lead free soldered (contains no lead). Lead-free solder have the following characteristics.

• The melting point is about 40 ºC higher than conventional solder. Conventional soldering iron can be used, but must be pressed for a longer time. When using the soldering iron with a temperature adjustment function, set to about 350 ºC.

Note: Pressing the soldering iron too long may cause the board pat-

tern (copper coating) to peel off.

• Strong viscosity As it has stronger viscosity than conventional solder, make sure the IC terminal does not solder bridge.

• Can be used with conventional solder Though it is best to add lead-free solder only, conventional solder can also be added.

• Boards using lead-free solder are printed with the LF mark meaning “Lead Free”.

SAFETY CHECK-OUT

After correcting the original service problem, perform the following safety check before releasing the set to the customer: Check the antenna terminals, metal trim, “metallized” knobs, screws, and all other exposed metal parts for AC leakage. Check leakage as described below.

LEAKAGE TEST

The AC leakage from any exposed metal part to earth ground and from all exposed metal parts to any exposed metal part having a return to chassis, must not exceed 0.5 mA (500 microamperes). Leakage current can be measured by any one of three methods.

1. A commercial leakage tester, such as the Simpson 229 or RCA

WT-540A. Follow the manufacturers’ instructions to use these instruments.

2. A battery-operated AC milliammeter. The Data Precision 245

digital multimeter is suitable for this job.

3. Measuring the voltage drop across a resistor by means of a VOM

or battery-operated AC voltmeter. The “limit” indication is 0.75 V, so analog meters must have an accurate low-voltage scale. The Simpson 250 and Sanwa SH-63Trd are examples of a passive VOM that is suitable. Nearly all battery operated digital multimeters that have a 2 V AC range are suitable. (See Fig. A)

Flexible Circuit Board Repairing

• Keep the temperature of soldering iron around 270˚C during repairing.

• Do not touch the soldering iron on the same conductor of the circuit board (within 3 times).

• Be careful not to apply force on the conductor when soldering or unsoldering.

SAFETY-RELATED COMPONENT WARNING!!

COMPONENTS IDENTIFIED BY MARK 0 OR DOTTED LINE WITH MARK 0 ON THE SCHEMATIC DIAGRAMS AND IN THE PARTS LIST ARE CRITICAL TO SAFE OPERATION. REPLACE THESE COMPONENTS WITH SONY PARTS WHOSE PART NUMBERS APPEAR AS SHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUBLISHED BY SONY .

Fig. A. Using an AC voltmeter to check AC leakage.

ATTENTION AU COMPOSANT AYANT RAPPORT

À LA SÉCURITÉ! LES COMPOSANTS IDENTIFÉS P AR UNE MARQUE 0 SUR LES DIAGRAMMES SCHÉMA TIQUES ET LA LISTE DES PIÈCES SONT CRITIQUES POUR LA SÉCURITÉ DE FONCTIONNEMENT. NE REMPLACER CES COMPOSANTS QUE PAR DES PIÈSES SONY DONT LES NUMÉROS SONT DONNÉS DANS CE MANUEL OU DANS LES SUPPÉMENTS PUBLIÉS PAR SONY.

JIG FOR CHECKING BD BOARD WAVEFORM

The special jig (J-2501-196-A) is useful for checking the waveform of the BD board. The names of terminals and the checking items to be performed are shown as follows.

GND : Ground I+3V : For measuring Iop (Check the deterioration of the optical pick-up laser) Iop : For measuring Iop (Check the deterioration of the optical pick-up laser) TE : TRK error signal (Traverse adjustment) VC : Reference level for checking the signal RF : RF signal (Check jitter) FE : Focus error signal

I+3V

GND

Iop

I+3V

Iop

GND

FE VC RF

CN105

I+3V Iop GND TE FE VC RF

for

MDM-7A

Iop DATA RECORDING AND DISPLAY WHEN OPTICAL PICK-UP AND NON-VOLATILE MEMORY (IC195 OF BD BOARD) ARE REPLACED

The Iop value labeled on the optical pick-up can be recorded in the non-volatile memory. By recording the value, it will eliminate the need to look at the value on the label of the optical pick-up. When replacing the optical pick-up or non-volatile memory (IC195 of BD board), record the Iop value on the optical pick-up according to the following procedure.

Record Precedure:

1. While pressing the AMS knob and x/Z button, connect the power plug to the outlet, and release the AMS knob and x/Z button.

2. Rotate the AMS knob to display “[Service]”, and press the @/1 button.

3. Rotate the AMS knob to display “Iop Write” (C05), and press the @/1 button.

4. The display becomes “Ref=@@@.@” (@ is an arbitrary number) and the numbers which can be changed will blink.

5. Input the Iop value written on the optical pick-up. To select the number : Rotate the AMS knob. To select the digit : Press the AMS knob.

6. When the @/1 button is pressed, the display becomes “Measu=@@@.@” (@ is an arbitrary number).

7. As the adjustment results are recorded for the 6 value. Leave it as it is and press the @/1 button.

8. “Complete! !” will be displayed momentarily. The value will be recorded in the non-volatile memory and the display will become “Iop Write” (C05).

9. Press the x/Z button to complete, remove the power plug to the outlet.

Display Precedure:

1. While pressing the AMS knob and x/Z button, connect the power plug to the outlet, and release the AMS knob and x/Z button.

2. Rotate the AMS knob to display “[Service]”, and press the @/1 button.

3. Rotate the AMS knob to display “Iop Read” (C26), and press the @/1 button.

4. “@@.@/##.#” is displayed and the recorded contents are displayed. @@.@ : indicates the Iop value labeled on the pick-up. ##.# : indicates the Iop value after adjustment

5. To end, press the AMS button or x/Z button to display “Iop Read” (C26), remove the power plug to the outlet.

CHECKS PRIOR TO PARTS REPLACEMENT AND ADJUSTMENTS

Before performing repairs, perform the following checks to determine the faulty locations up to a certain extent. Details of the procedures are described in “5 Electrical Adjustments”.

• 5-6-2. Laser power check (see page 27)

• 5-6-3. Iop Compare (see page 27)

• 5-6-4. Auto Check (see page 28)

Note:

The criteria for determination above is intended merely to determine if satisfactory or not, and does not serve as the specified value for adjustments. When performing adjustments, use the specified values for adjustments.

FORCED RESET

The system microprocessor can be reset in the following procedure. Use these procedure when the unit cannot be operated normally due to the overrunning of the microprocessor, etc.

Procedure :

Remove the short-pin attached to CN420, and then attach it again.

[MAIN BOARD] (Component Side)

CN420

RETRY CAUSE DISPLAY MODE

• In this test mode, the causes for retry of the unit during recording can be displayed on the indication vessel. During playback, the “track

mode” for obtaining track information will be set. This is useful for locating the faulty part of the unit.

• The following will be displayed :

During recording and stop : Retry cause, number of retries, and number of retry errors. During playback : Information such as type of disc played, part played, copyright. These are displayed in hexadecimal.

Procedure:

1. Press the @/1 button, x/Z button and u button continuously for about 10 seconds.

2. Rotate the AMS knob to display “Debug Disp”, Then press the AMS button.

3. When the mode is set, “RTs 00c 00e 00” is displayed.

4. Press the z button to start recording. Then press the X button and start recording.

5. To check the “track mode”, press the H button to start play.

6. To exit the test mode, press the @/1 button, and turn OFF the power. If the test mode cannot be exited, refer to “Forced Reset” on page 8.

Fig. 1 Reading the Test Mode Display (During recording and stop)

RTs@@c##c**

Indication vessel display

@@ : Cause of retry ## : Number of retries ** : Number of retry errors

Reading the Retry Cause Display

Higher Bits Lower Bits

Hexadecimal

Bit

Binary

84218421

b7 b6 b5 b4 b3 b2 b1 b0

00000001

00000010

00000100

00001000

00010000

00100000

01000000

10000000

Hexa-

decimal

Fig. 2 Reading the Test Mode Display (During playback)

@@###**$$

Indication vessel display

@@ : Parts No. (name of area named on TOC) ### : Cluster ** : Sector $$ : Track mode (Track information such as copyright infor-

Cause of Retry Occurring conditions

shock

ader5

Discontinuous address

DIN unlock

FCS incorrect

IVR rec error

CLV unlock

Access fault

} Address (Physical address on disc)

mation of each part)

When track jump (shock) is detected

When ADER was counted more than five times continu-

ously

When ADIP address is not continuous

When DIN unlock is detected

When not in focus

When ABCD signal level exceeds the specified range

When CLV is unlocked

When access operation is not performed normally

Reading the Display:

Convert the hexadecimal display into binary display. If more than two causes, they will be added.

Example

When 42 is displayed: Higher bit : 4 = 0100 t b6 Lower bit : 2 = 0010 t b1 In this case, the retry cause is combined of “CLV unlock” and “ader5”.

When A2 is displayed: Higher bit : A = 1010 t b7+b5 Lower bit : 2 = 0010 t b1 The retry cause in this case is combined of “Access fault”, “IVR rec error”, and “ader5”.

Reading the Track Mode Display

Higher Bits Lower Bits

Hexadecimal

Bit

Binary

Reading the Display:

Convert the hexadecimal display into binary display. If more than two causes, they will be added.

Example When 84 is displayed:

Higher bit : 8 = 1000 t b7 Lower bit : 4 = 0100 t b2 In this case, as b2 and b7 are 1 and others are 0, it can be determined that the retry cause is combined of “Emphasis OFF”, “Monaural”, “original”, “Copyright exists”, and “Write allowed”.

Example When 07 is displayed:

Higher bit : 0 = 0000 t All 0 Lower bit : 7 = 0111 t b0+b1+b2 In this case, as b0, b1, and b2 are 1 and others are 0, it can be determined that the retry cause is combined of “Emphasis ON”, “Stereo”, “Original”, “Copyright exists”, and “Write prohibited”.

84218421

b7 b6 b5 b4 b3 b2 b1 b0

00000001

00000010

00000100

00001000

00010000

00100000

01000000

10000000

Hexa-

decimal

When 0 When 1

Emphasis OFF

Monaural

This is 2-bit display. Normally 01.

01:Normal audio. Others:Invalid

Audio (Normal)

Original

Write prohibited

Details

Emphasis ON

Stereo

Invalid

Digital copy

No copyright

Write allowed

Hexadecimal t Binary Conversion Table

Hexadecimal Binary Hexadecimal Binary

Clearing the Retry Record:

Method:

1. Press the @/1 button, x/Z button, and u button for about 10 seconds.

2. Rotate the

3. Press the [AMS] knob to clear the record and exit the clear mode.

0000

0001

0010

0011

0100

0101

0110

0111

[AMS] knob to display “Retry Clear?” and press the [AMS] knob.

1000

1001

1010

1011

1100

1101

1110

1111

Location

and Function

of Parts

EJECT INPUT

REC MODE

PLAY MODE

MENU/NO NAME EDIT/

YES

DISPLAY

FADER

MUSIC SYNC

`/1

REPEAT AyB CLEAR

LEVEL

–

SELECT

98 7

Press to turn the deck on. When you turn the

deck on, the ?/1 switch indicator on the deck

turns off. When you press the switch again, the

deck turns off and the indicator lights up red.

Press to select Shuffle Play or Program Play.

Press to select the information to be displayed in

the window, or to select the type of characters to

be input.

Press to start Music Synchro-recording.

Press to perform Fade-in Recording/Playback or

Fade-out Recording/Playback.

Press to adjust the recording level and the output

level of the PHONES jack and ANALOG OUT

jacks.

Press to carry out the selected operation.

Press to cancel the selection.

9 AyB button (23)

Press to select Repeat A-B Play.

0 REPEAT button (23)

Press to play tracks repeatedly.

qa NAME EDIT/SELECT button (37)

Press to add the name or change the name of a

track or MD.

qs MENU/NO button (15, 25, 28)

Press to display “Edit Menu” or “Setup Menu.”

qd N button (13, 21)

Press to start play or recording.

X button (13, 21)

Press to pause play or recording. Press again to

resume play or recording.

x button (13, 21, 29)

Press to stop play, recording, or cancel the

selected operation.

./> buttons (13, 21, 22, 25, 28)

Press to locate tracks, select a menu item, or

select a character to be input.

z button (13, 17, 18)

Press to record on the MD, monitor the input

signal, or mark track numbers.

m/M buttons (22, 26, 36)

Press to locate a portion within a track, change

the contents of a program, or shift the cursor.

qf EJECT Z button (13, 21)

Press to eject the MD.

qg INPUT button (12)

Press to select the input jack (or connector) of the

program source to be recorded.

qh REC MODE button (15)

Press to select one of the following four

recording modes: Mono (monaural recording),

stereo (stereo recording), LP2 (2 times normal

recording time), and LP4 (4 times normal

recording time).

SECTION 2

GENERAL

PUSHu

This section is extracted from instruction manual.

Location and Function of Parts

Front Panel Parts Description

This chapter tells you about the location and function of the various buttons and controls on the front panel

and the supplied remote. Further details are provided on the pages indicated in the parentheses.

It also tells you about the information that appears in the display window.

23 4 5 6

?/1 z x/Z

Press to stop play, stop recording, or cancel the

selected operation.

5 x/Z button (13, 21, 29)

22, 25, 28)

Press to eject the MD while the deck is stopped.

6 ./> control, u button (13, 21,

Turn to locate tracks.

Press to start play, pause play, or pause recording.

Press to carry out the selected operation.

Point the remote towards this window ( ) for

remote operations.

7 Remote sensor

With the labeled

side up

towards the deck

With the arrow pointing

Press to turn the deck on. When you turn the

deck on, the switch indicator turns off. When

you press the switch again, the deck turns off and

the indicator lights up red.

Press to record on the MD, monitor the input

signal, or mark track numbers.

1 ?/1 (power) switch (12, 21)

2 z button (13, 17, 18)

Insert the MD as illustrated below.

3 MD insertion slot

Shows various information.

4 Display window (6, 7)

Press

While the deck is stopped

Press DISPLAY repeatedly to change the

display.

Each press of the button changes the display as

follows:

Using the Display

The display window shows information about the

MD or track. This section describes the

information that appears for each deck status.

14Tr 44.22

Total number of tracks and total

recorded time (default display)

DISPLAY

?/1

Press

-63.51

Remaining recordable time on the

MD (recordable MDs only)*

–

Note

Press

12t 4 t 61

Order of the programmed tracks**

The type of information (e.g., total number of tracks,

recorded time, remaining time, track or disc name)

which was last displayed will continue to appear until

you change it by pressing DISPLAY, even if you

change the deck operation status. For example, if the

remaining time was displayed when you stop the

Press

3Tr 12.56

The number and total playing time of the

programmed tracks**

deck, the remaining time will continue to appear

When you insert an MD

when you begin playing the same MD again or a

different one.

SONGS

Disc name

* Not shown for the premastered discs.

** This display appears only when “PGM” appears.

Total recorded

time

Disc name

SONGS

Total number

The display automatically changes as follows:

of tracks

14Tr 44.22

Location

While the deck is playing

Press DISPLAY repeatedly to change the

display.

Each press of the button changes the display as

follows:

and Function

Press

1Tr 0.12

Track number and elapsed time of the

current track (default display)

Press

of Parts

Press

1Tr-2.51

Track number and remaining time of

the current track

Press

-45.25

Remaining recordable

time on the MD

Press

12t 4 t 61

Order of the programmed

tracks*

Press

Track2

* The display appears only when “PGM” appears.

Track name

While the deck is recording

ach press of the button changes the display as

Press DISPLAY repeatedly to change the

display.

he current track (default display)

follows:

15Tr 44.22

Track number and recorded time of

Remaining recordable time on the MD

-63.02

Level of the input signal

SONGS

Track name

Getting

Started

DC IN

PHONES

PC LINKDIGITALANALOG

(OPTICAL)

(VARIABLE)

IN OUTIN OUT

OPTICAL

OUT

LINE

OUT

LINE

OPTICAL

Connecting the MD deck to a

personal computer

CD player or digital CS tuner,

etc. with optical digital

connection capability

For PC connecting

kit PCLK-MN10

Portable CD

player, etc.

Active

speakers,

etc.

Amplifier, etc. with

optical digital

connection capability

For AC

power

adaptor

Connecting the MD deck with

an audio component

The MD deck is capable of recording from both

analog and digital sources.

When recording from an analog

source

Required connecting cord

Audio connecting cord (supplied)

OUT

LINE

ANALOG

(VARIABLE)

IN OUT

l : Signal flow

When recording from a digital

source

Required connecting cord

Optical digital cable (supplied)

OPTICAL

DIGITAL

(OPTICAL)

IN OUT

OUT

l : Signal flow

continued

Portable CD

player, etc.MDS-PC3

CD player, etc. with optical

digital connection capability

MDS-PC3

SECTION 3

)

DISASSEMBLY

Note : Follow the disassembly procedure in the numerical order given.

3-1. CASE (U)

4 case (U)

claws

1 three screws (BVTP 3x10)

3-2. MD MECHANISM DECK (MDM-7A)

2 two screws (+BVTTWH M3 3x10)

3 mechanism deck

1 flat type wire (23 core)

(CN102)

1 three screws (BVTP 3x10)

2 two screws (+BVTTWH M3 3x10)

1 flat type wire (27 core (CN101)

3-3. MAIN BOARD

(

)

2 two screws (BVTP 3x8)

1 flat type wire (13 core) (CN103)

3-4. OVER LIGHT HEAD (HR901), BD (MD) BOARD

4 MAIN board

3 three screws

(BVTP 3x8)

4 Removal the solders

2 screw

(P 1.7x6)

3 head, over light (HR901)

8 BD (MD) board

1 connector

(CN104)

4 Removal the solders

5 two screws

BTP 2x6

7 FLEXIBLE board (CN101)

3-5. HOLDER ASSY

1 spring (holder), tension

4 boss

6 holder assy

4 boss

2 claw

3-6. LOADING MOTOR ASSY (M103)

2 two screws (PWH 1.7x2.5)

3 motor assy, loading (M103)

1 belt (loading)

3-7. SLED MOTOR ASSY (M102), SLIDER

1 two screws (BTP 2x6)

4 slider (EJ)

2 guide (L)

6 slider

7 lever (CHG)

Remeve the claw. Shift the slider in the arrow A direction.

8 lever (head)

9 two screws

(PWH 1.7x2.5)

0 motor assy, sled (M102)

3-8. OPTICAL PICK-UP (MD) (KMS-260B/JIN)

1 FLEXBLE boaed

0 slider (SL)

9 screw

(P 1.7x6)

qa optical pick-up

(KMS-260B/J1N)

7 MAIN shaft

6 two screws

(K 2x6)

4 screw (BTP 2x6)

5 base (BU-A)

2 screw

(M 1.7), tapping

3 gear (SD)

3-9. SPINDLE MOTOR ASSY (M101)

2 motor assy, spindle (M101)

1 screw (M 1.7), tapping

SECTION 4

TEST MODE

*Note:

As this unit has only a few buttons, one button is assigned with several functions in the test mode.” Press the z button, AMS knob to switch the functions.

• Each time the z button is pressed, the display switches in the follwing order, “PGM” t “blank” t “PGM” t –.

• Rotate the AMS knob and the display switches in the following order, “blank” t “TOC” t “EDIT” t “TOC EDIT” t

“[ ]” t “[TOC ]” t “[ EDIT]” t “[TOC EDIT]” t “blank” t – –.

For simplicity, operations of z button will not be discribed here.

Example) x/Z : Lights-out “PGM” and press the x/Z button.

x/Z “PGM” : Display “PGM” and press the x/Z button.

The functions of each button change with the display.

Bottons and Corresponding Functions

“PGM” Lights-out

Buttons

@/1 @/1

x/Z EJECT (EDIT)/ STOP REC — FR SCROLL TIME —

“PGM”

displayed

Nothing

displayed

ENTER

(YES) MODE

TOC EDIT TOC EDIT TOC EDIT TOC EDIT

REPEAT PLAY CLEAR

LCD displayed

PLAY

DISPLAY —

4-1. PRECAUTIONS FOR USE OF TEST MODE

• As loading related operations will be performed regardless of the test mode operations being performed, be sure to check that the disc

is stopped before setting and removing it.

4-1-1. Recording laser emission mode and operating buttons

• Continuous recording mode (CREC 1MODE) (C35)

• Laser power check mode (LDPWR CHECK) (C13)

• Laser power adjustment mode (LDPWR ADJUS) (C04)

• Iop check (Iop Compare) (C27)

• Iop value nonvolatile writing (Iop NV Save) (C06)

• Traverse (MO) check (EF MO CHECK) (C14)

• Traverse (MO) adjustment (EF MO ADJUS) (C07)

• When pressing the z button.

4-2. SETTING THE TEST MODE

The following are two methods of entering the test mode. While pressing the AMS knob and x/Z button, connect the power plug to an outlet, and release the AMS knob and x/Z button. When the test mode is set, “[Check]” will be displayed. Rotating the AMS knob switches between the following three groups;

··· y Check y Service y Develop y ···.

NOTE: Do not use the test mode in the [Develop] group.

If used, the unit may not operate normally. If the [Develop] group is set accidentally, press the x/Z button immediately to exit the [Develop] group.

4-3. EXITING THE TEST MODE

Press the x/Z button, remove the power plug to the outlet.

4-4. BASIC OPERATIONS OF THE TEST MODE

All operations are performed using the AMS knob, @/1 button, and x/Z button. The functions of these buttons are as follows.

Function name

&/1 button x/Z button

AMS knob

Left or Right Push u

Cancel or move to top hierarchy

Set

Select

Set submenu

Function

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