Sony MDS-S50 User Manual 2

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Page 1

MDS-JE470

SERVICE MANUAL

Ver 1.0 2001. 05

US and foreign patents licensed form Dolby Laboratories Licensing Corporation.

SPECIFICATIONS

US Model

Canadian Model

AEP Model

UK Model

E Model

Australian Model

Model Name Using Similar Mechanism MDS-S50

MD Mechanism Type MDM-7A

Optical Pick-up Type KMS-260B/260E

System MiniDisc digital audio

system Disc MiniDisc Laser Semiconductor laser

( λ = 780 nm) Emission

Laser output MAX 44.6 µW

1) 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. Laser diode Material: GaAlAs Revolutions (CLV) 400 rpm to 900 rpm Error correction ACIRC (Advanced Cross

Sampling frequency 44.1 kHz Coding ATRAC (Adaptive

Modulation system EFM (Eight-to-Fourteen

Number of channels 2 stereo channels Frequency response 5 to 20,000 Hz ±0.3 dB Signal-to-noise ratio

Wow and flutter Below measurable limit

duration: continuous

Interleave Reed Solomon Code)

TRansform Acoustic Coding)/ATRAC 3

Modulation)

Over 96 dB during play

Inputs

ANALOG IN Jack type: phono

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

DIGITAL OPTICAL IN Connector type: square

optical Impedance: 660 nm (optical wave length)

Outputs

ANALOG OUT Jack type: phono

Rated output: 2 Vrms (at 50 kilohms) Load impedance: over 10 kilohms

— Continued on next page —

9-873-891-11

2001E0200-1

MINIDISC DECK

Sony Corporation

Home Audio Company

Shinagawa Tec Service Manual Production Group

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MDS-JE470

General

Power requirements

U.S.A. and Canadian models:

120 V AC, 60Hz European model: 230 V AC, 50/60Hz Australian model: 240 V AC, 50/60Hz Hong Kong model: 220 – 240 V AC, 50/60Hz Other models: 110 – 120/220 – 240 V

AC, 50/60Hz

Adjustable with voltage

selector Power consumption

14 W (0.5 W

in standby

Supplied acce ss or ie s

Audio connecting cords (2) Optical cable (1) Remote commander (remote) (1) R6 (size-AA) batteries (2)

US and foreign patents licensed from Dolby Laboratories. Design and specifications are subject to change without notice.

mode)

Dimensions (approx.) 430 X 95 X285 mm

(w/h/d) incl. projecting

parts and controls Mass (approx.)

3.0 kg

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 SelfDiagnosis Function (Error History Display Mode)”.

Three- or five-

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- or five-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- or fivedigit code/ Message

C11/Protected

C12/Cannot Copy

C13/REC Error

C13/Read Error

Cause/Remedy

The inserted MD is record-protected.

Take out the MD and close the record-

protect slot.

You tried to record a CD with a format that the external device connected to the deck does not support, such as CD-ROM or video CD.

Remove the disc and insert a music

CD.

The recording was not made properly.

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.

The deck could not read the TOC on the MD properly.

Take out the MD and insert it again.

digit code/ Message

C14/Toc Error

C41/Cannot Copy

C71/Din Unlock

E0001/ MEMORY NG

E0101/ LASER NG

Cause/Remedy

The deck could not read the TOC on the MD properly.

Insert another disc.

If possible, erase all the tracks on the

MD.

The sound source is a copy of commercially available music software, or you tried to record a CD-R (Recordable CD).

The Serial Copy Management System

prevents making a digital copy You cannot record a CD-R.

The sporadic appearance of this message is caused by the digital signal being recorded. This will not affect the recording.

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

Connect the cable or turn the digital

component back on.

There is an error in the internal data that the deck needs in order to operate.

Consult your nearest Sony dealer.

There is a problem with the optical pickup.

The optical pick-up may have failed.

Consult your nearest Sony dealer.

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 MENU/NO button to exit the mode.

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MDS-JE470

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

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

2. Rotate the lAMSL knob and when “[Service]” is displayed, press the YES button.

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

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

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

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

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

8. Pressing the MENU/NO button displays “Err Display” and exits the error history mode.

9. To exit the test mode, press the REPEAT button. The unit sets into the STANDBY state, the disc is ejected, and the test mode ends.

ITEMS OF ERROR HISTORY MODE ITEMS AND CONTENTS

Selecting the Test Mode

Display

op rec tm

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.

History

op play tm

spdl rp tm

retry err

total err

err history

retry adrs

er refresh

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 lAMSL 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 lAMSL knob.

Mode for erasing the error and retry address histories Procedure

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

2. Press the YES 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.

tm change

op change

Mode for erasing the total time of recording and playback Procedure

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

2. Press the YES 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 lAMSL

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

knob when displayed as “op change”.

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MDS-JE470

Display

spdl change

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.

History

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 lAMSL knob when displayed as “spdl change”

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

TABLE OF CONTENTS

Description

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

2. GENERAL ........................................................................ 12

3. DISASSEMBLY

3-1. Disassembly flow .............................................................. 13

3-2. Upper Case (408226) ........................................................ 14

3-3. Front Panel Section ........................................................... 14

3-4. Main Board ....................................................................... 15

3-5. PT Board, VOL-SEL Board (SP model) ........................... 15

3-6. Mechanism Deck Section ( MDM-7A) ............................. 16

3-7. Over Light Head (HR901), BD Board .............................. 16

3-8. Holder Assy ....................................................................... 17

3-9. Loading Motor Assy (M103) ............................................ 17

3-10. Sled Motor Assy (M102), Slider ....................................... 18

3-11. Optical Pick-up.................................................................. 18

3-12. Spindle Moter Assy (M101).............................................. 19

4. TEST MODE ......................................................................20

MODEL IDENTIFICATION

— BACK PANEL —

MODEL

AEP, UK models

US model

CND model

SP models

HK model

AUS model

• Abbreviation CND : Canadian model SP : Singapore model HK : Hong Kong model AUS : Australian model

Part No.

PARTS No.

4-233-025-0s

4-233-025-1s

4-233-025-2s

4-233-025-3s

4-233-025-4s

4-233-025-5s

5. ELECTRICAL ADJUSTMENTS ............................... 25

6. DIAGRAMS

6-1. Circuit Boards Location ...................................................... 36

6-2. Block Diagrams

• BD Section ....................................................................... 38

• Main Section .................................................................... 39

6-3. Printed Wiring Board – BD Board – ................................... 40

6-4. Schematic Diagram – BD Section (1/2) – ........................... 41

6-5. Schematic Diagram – BD Section (2/2) – ........................... 42

6-6. Schematic Diagram – Main Section (1/2) – ........................ 43

6-7. Schematic Diagram – Main Section (2/2) – ........................ 44

6-8. Printed Wiring Board – Main Section – ............................. 45

6-9. Printed Wiring Board – Display Section – .......................... 46

6-10. Schematic Diagram – Display Section – .......................... 47

6-11. Printed Wiring Board – Power Section – ......................... 48

6-12. Schematic Diagram – Power Section – ............................ 49

6-13. IC Block Diagrams ........................................................... 50

6-14. IC Pin Functions ............................................................... 52

7. EXPLODED VIEWS

7-1. Chassis Section ................................................................... 59

7-2. Front Panel Section ............................................................. 60

7-3. Mechanism Section-1 (MDM-7A) ...................................... 61

7-4. Mechanism Section-2 (MDM-7A) ...................................... 62

8. ELECTRICAL PARTS LIST ........................................ 63

Page 5

SECTION 1

SERVICE NOTES

MDS-JE470

SAFETY CHECK-OUT

(US model only)

After correcting the original service problem, perform the following safety checks 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

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 microampers). 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 2V AC range are suitable. (See Fig. A)

To Exposed Metal Parts on Set

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.

0.15µF

1.5kΩ

Earth Ground

AC voltmeter (0.75V)

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

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.

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.

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.

ATTENTION AU COMPOSANT AYANT RAPPORT

À LA SÉCURITÉ! LES COMPOSANTS IDENTIFÉS PAR UNE MARQUE 0 SUR LES DIAGRAMMES SCHÉMATIQUES 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.

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MDS-JE470

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

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MDS-JE470

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 l AMS L knob and x button, connect the power plug to the outlet, and release the l AMS L knob and x button.

2. Rotate the l AMS L knob to display “[Service]”, and press the YES button.

3. Rotate the l AMS L knob to display “Iop Write” (C05), and press the YES 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 l AMS L knob. To select the digit : Press the l AMS L knob.

6. When the YES 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 YES button.

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

9. Press the REPEAT button to complete.

Display Precedure:

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

2. Rotate the l AMS L knob to display “[Service]”, and press the YES button.

3. Rotate the l AMS L knob to display “Iop Read” (C26).

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

5. To end, press the l AMS L button or MENU/NO button to display “Iop Read”. Then press the REPEAT button.

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MDS-JE470

OPTICAL PICK-UP BLOCK TYPE DISCRIMINATION

There are two types of the optical pick-up block in this model. These are compatible except for the laser power. Check the type of the optical pick-up block before replacement. Ajdust following items after replacing the optical pick-up block.

• 5-6-2. Laser Power Check (See page 28)

• 5-10. LASER POWER ADJUSTMENT (See page 31)

Differences

KMS-260B KMS-260E

Color of the adhesive agent at PDIC portion Pink White

Form of FPC retainer plate Close the hole on SL base Not close the hole on SL base

APC variable resistor Small volume (2 type)

Fig. B type is for repair.

• Abbreviation

260B: KMS-260B model

260E: KMS-260E model

Big variable resistor (3 type) and chip resistor (Fig. A)

Small variable resistor (2 type) and chip resistor (Fig. B)

Hold on SL base

Adhesive agent at PDIC portion

KSN-260B

FPC retainer plate

APC variable resistor

Hold on SL base

Adhesive agent at PDIC portion

KSN-260E

FPC retainer plate

(Fig A)

CHIP

3 type variable resistor

(Fig B)

CHIP

2 type variable resistor

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MDS-JE470

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 28)

• 5-6-3. Iop Compare (see page 28)

• 5-6-4. Auto Check (see page 29)

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 CN406, and then attach it again.

[MAIN BOARD] (Component Side)

CN406

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MDS-JE470

RETRY CAUSE DISPLAY MODE

• In this test mode, the causes for retry of the unit during recording can be displayed on the fluorescent indicator tube. 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. Insert the recordable disc.

2. Press MENU/NO button to display “Edit Menu” on the fluorescent display.

3. Turn l AMS L button to display “All Erase?” on the fluorescent display.

4. Press YES button to display “All Erase??” on the fluorescent display.

5. Press YES button, “Complete!” is displayed on the fluorescent display and it turns off immediately.

6. Procedure 1: Press the x button continuously for about 10 seconds.

Procedure 2: Press the LEVEL/DISPLAY/CHAR button while pressing the x button and MENU/NO button.

7. When the mode is set, “RTs 00c 00e 000” is displayed.

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

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

10.To exit the test mode, press the @/1 button, and turn OFF the power. When “TOC” disappears, disconnect the power plug from the outlet.

If the test mode cannot be exited, refer to “Forced Reset” on page 9.

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

RTs@@c##c***

Fluorescent display tube display

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

Reading the Retry Cause Display

Lower Bits

Hexadecimal

Bit

Binary

Higher Bits

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)

@@###**$$

Fluorescent display tube 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

Page 11

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 b2 The retry cause in this case is combined of “access fault”, “IVR rec error”, and “ader5”.

Reading the Track Mode Display

Hexadecimal

Bit

Binary

Higher Bits Lower Bits

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

MDS-JE470

Emphasis ON

Stereo

Invalid

Digital copy

No copyright

Write allowed

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 = 1000 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”.

Hexadecimal t Binary Conversion Table

Hexadecimal Binary Hexadecimal Binary

0000

0001

0010

0011

0100

0101

0110

0111

1000

1001

1010

1011

1100

1101

1110

1111

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MDS-JE470

Parts Identification

The items are arranged in alphabetical order. Refer to the pages indicated in parentheses ( ) for details.

Main unit

SECTION 2

GENERAL

This section is extracted from instruction manual.

STANDBY

TIMER

RECOFF PLAY

PHONES PHONE LEVEL PC LINK

MIN MAX

(KEYBOARD)

AMS wh

(15) (20) (25) (35) (39) CLEAR (23) (30) (40) Display window EJECT (11) (20) (25) GROUP ON/OFF

GROUP

ON/OFF SKIP TIME

LEVEL/

DISPLAY/CHAR

PLAY MODE REPEAT

(13) (22)

(31)

GROUP SKIP INPUT (11)

LEVEL/DISPLAY/CHAR

(13) (22) (31)

(11) (21) (29) MD insertion slot MDLP indicator (14) (21) MENU/NO (15) (22) (25) (35)

(39)

PC LINK (KEYBOARD)

(39)

PHONE LEVEL PHONES jack PLAY MODE (20) (37) REC MODE (14) (22) REC (11)

Remote sensor REPEAT (20)

(21)

(17) (21) (36)

STANDBY indicator (11) (20)

TIME TIMER YES (15) (23) (25) (35) (39)

(17) (21)

(37)

EJECT

MDLP

INPUT REC MODE

REC

MENU/

CLEAR

AMS

PUSH ENTER

YES

BUTTON DESCRIPTIONS

(11) (20) (25)

`/1

(11) (20) (37) (40)

(11) (20) (39) (40)

(11) (20) (25) (37) (40)

x m/M

(20) (26) (40)

1) MDS-JE770 only.

2) MDS-JE770 only. For MDSJE470, the remote sensor is located on the display window.

Page 13

• This set can be disassembled in the order shown below.

MDS-JE470

SECTION 3

DISASSEMBLY

3-1. DISASSEMBLY FLOW

3-3 FRONT PANEL SECTION

3-4 MAIN BOARD

SET

3-2 UPPER CASE (408226)

3-5 PT BOARD VOL-SEL BOARD (SP model)

3-7 BD BOARD

3-8 HOLDER ASSY

• Abbreviation SP : Singapore

3-6 MECHANISM DECK SECTION (MDM-7A)

3-7 OVER LIGHT HEAD (HR901)

3-7 BD BOARD

3-10 SLED MOTOR ASSY (M102)

Note 1: The processes enclosed with , remove in the any order. Note 2: You cannot go to the next process until every process enclosed with has done.

3-9 LOADING MOTOR ASSY (M103)

3-8 HOLDER ASSY

3-11 OPTICAL PICK-UP (KMS-260B/260E)

3-12 SPINDLE MOTOR ASSY (M101)

Page 14

MDS-JE470

3-2. UPPER CASE (408226)

Two screws

(CASE 3TP2)

Case (408226)

Screw

(CASE 3TP2)

Two screws

(CASE 3TP2)

3-3. FRONT PANEL SECTION

Claw

Two screws

(+BVTP3x8)

Connector (CN830)

Claw

Connector (CN390)

Wire (flat type) (17core) (CN3)

Front panel

Two screws

(+BVTP3x8)

Page 15

3-4. MAIN BOARD

Two screws

(+BVTP3x8)

Two screws

(+BVTP3x8)

screw (+BVTP3x8)

Connector (CN400)

Wire (flat type) (23core) (CN1)

Wire (flat type) (27core) (CN2)

MAIN board

MDS-JE470

3-5. PT BOARD, VOL-SEL BOARD (SP model)

VOL-SEL board (SP model)

Connector (CN900)

Connector (CN990) (SP model)

Nylom rivet (dia 3)

PT board

Three screws

(+PTTWH M3)

(+BVTP3x8) (SP model)

Two screws

Page 16

MDS-JE470

3-6. MECHANISM DECK SECTION (MDM-7A)

Two step screws

(+BVTTWH M3)

Mechanism deck

Two step screws

(+BVTTWH M3)

Harnes

3-7. OVER LIGHT HEAD (HR901), BD BOARD

Note 1: If you disconnect the connector (CN104), you can remove the

BD board without removing the over write head (HR901).

Note 2: Be careful to handle the over write head (HR901) because it is

easy to be damaged.

Head, over light (HP901)

Remove the solder (four portion)

Screw (P1.7X6)

BD board

Connector (CN104)

Remove the solder (five portion)

Two screws (BTP2X6)

FLEXIBLE board (CN101)

Page 17

3-8. HOLDER ASSY

Spring (holder), tension

Holder ASSY

Boss

MDS-JE470

Claw

3-9. LOADING MOTOR ASSY (M103)

Two screws (PWH1.7x2.5)

Belt (loading)

Motor ASSY, loading (M103)

Page 18

MDS-JE470

)

3-10. SLED MOTOR ASSY (M102), SLIDER

Slider (EJ)

Remove the claw. Shift the slider in the arrow direction.

Two screws (BTP2X6)

3-11. OPTICAL PICK-UP

Guide (L)

Slider

Lever (CHG)

Lever (head)

Two screws

(PWH1.7X2.5)

Motor ASSY, sle

(M102)

FLEXIBLE board

Screw (P1.7X6)

SL base

Screw (M1.7), tapping

Gear (SD)

Optical pick-up

(KMS-260B/260E)

Main shaft

Two screws (K2X6)

Screw (BTP2X6

Base (BU-A)

Page 19

3-12. SPINDLE MOTER ASSY (M101)

Spindle motor ASSY (M101)

MDS-JE470

Three screws (M1.7), tapping

Page 20

MDS-JE470

SECTION 4

TEST MODE

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. Even if the A EJECT button is pressed while the disc is rotating during continuous playback, continuous recording, etc., the disc will not stop rotating. Therefore, it will be ejected while rotating. Be sure to press the A EJECT button after pressing the MENU/NO button and the rotation of disc is stopped.

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 REC button.

4-2. SETTING THE TEST MODE

The following are two methods of entering the test mode. Procedure 1: While pressing the l AMS L knob and x button, connect the power plug to an outlet, and release the l AMS L

knob and x button. When the test mode is set, “[Check]” will be displayed. Rotating the l AMS L knob switches between the following three groups; ··· y Check y Service y Develop y ···.

Procedure 2: While pressing the l AMS L knob, connect the power plug to the outlet and release the l AMS L knob.

When the test mode is set, “TEMP CHECK” will be displayed. By setting the test mode using this method, only the “Check” group of method 1 can be executed.

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 MENU/NO button immediately to exit the [Develop] group.

4-3. EXITING THE TEST MODE

Press the REPEAT button. The disc is ejected when loaded, and “Standby” display blinks, and the STANDBY state is set.

4-4. BASIC OPERATIONS OF THE TEST MODE

All operations are performed using the l AMS L knob, YES button, and MENU/NO button. The functions of these buttons are as follows.

Function name

MENU/NO button

YES button

AMS knob

Left or Right

Push

Cancel or move to top hierarchy

Set

Select

Set submenu

Function

Page 21

MDS-JE470

4-5. SELECTING THE TEST MODE

There are 26 types of test modes as shown below. The groups can be switched by rotating the l AMS L knob. After selecting the group to be used, press the YES button. After setting a certain group, rotating the l AMS L knob switches between these modes. Refer to “Group” in the table for details selected. All adjustments and checks during servicing can be performed in the test mode in the Service group.

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 MENU/NO button immediately to exit the [Develop] group.

Display

AUTO CHECK

Err Display

TEMP ADJUS

LDPWR ADJUS

Iop Write

Iop NV Save

EF MO ADJUS

EF CD ADJUS

FBIAS ADJUS

AG Set (MO)

AG Set (CD)

TEMP CHECK

LDPWR CHECK

EF MO CHECK

EF CD CHECK

FBIAS CHECK

ScurveCHECK

VERIFYMODE

DETRK CHECK

0920 CHECK

Iop Read

Iop Compare

ADJ CLEAR

INFORMATION

CPLAY1MODE

CREC 1MODE

No.

Automatic self-diagnosis

C01

Error history display, clear

C02

Temperature compensation offset adjustment

C03

Laser power adjustment

C04

Iop data writing

C05

Writes current Iop value in read nonvolatile memory using microprocessor

C06

Traverse (MO) adjustment

C07

Traverse (CD) adjustment

C08

Focus bias adjustment

C09

Focus, tracking gain adjustment (MO)

C10

Focus, tracking gain adjustment (CD)

C11

Temperature compensation offset check

C12

Laser power check

C13

Traverse (MO) check

C14

Traverse (CD) check

C15

Focus bias check

C16

S-curve check

C17

Nonvolatile memory check

C18

Detrack check

C19

Most circumference check

C25

Iop data display

C26

Comparison with initial Iop value written in nonvolatile memory

C27

Initialization of nonvolatile memory for adjustment values

C28

Display of microprocessor version, etc.

C31

Continuous playback mode

C34

Continuous recording mode

C35

Details

Mark

Group

Check Service

• For details of each adjustment mode, refer to “5. Electrical Adjustments”. For details of “Err Display”, refer to “Self-Diagnosis Function” on page 2.

• If a different mode has been selected by mistake, press the MENU/NO button to exit that mode.

• Modes with (X) in the Mark column are not used for servicing and therefore are not described in detail. If these modes are set accidentally, press the MENU/NO button to exit the mode immediately.

Page 22

MDS-JE470

4-5-1. Operating the Continuous Playback Mode

1. Entering the continuous playback mode

1 Set the disc in the unit. (Whichever recordable discs or discs for playback only are available.) 2 Rotate the l AMS L knob and display “CPLAY1 MODE”(C34). 3 Press the YES button to change the display to “CPLAY1 MID”. 4 When access completes, the display changes to “C = AD = ”.

Note : The numbers “ ” displayed show you error rates and ADER.

2. Changing the parts to be played back

1 Press the YES button during continuous playback to change the display as below.

“CPLAY1 MID” t “CPLAY1 OUT” t “CPLAY1 IN”

When pressed another time, the parts to be played back can be moved.

2 When access completes, the display changes to “C = AD = ”. Note : The numbers “ ” displayed show you error rates and ADER.

3. Ending the continuous playback mode

1 Press the MENU/NO button. The display will change to “CPLAY1 MODE”(C34). 2 Press the AEJECT button to remove the disc.

Note : The playback start addresses for IN, MID, and OUT are as follows.

IN 40h cluster MID 300h cluster OUT 700h cluster

4-5-2. Operating the Continuous Recording Mode (Use only when performing self-recording/palyback check.)

1. Entering the continuous recording mode

1 Set a recordable disc in the unit. 2 Rotate the l AMS L knob and display “CREC1 MODE” (C35). 3 Press the YES button to change the display to “CREC1 MID”. 4 When access completes, the display changes to “CREC 1 ( )” and REC lights up.

Note : The numbers “ ” displayed shows you the recording position addresses.

2. Changing the parts to be recorded

1 When the YES button is pressed during continuous recording, the display changes as below.

“CREC1 MID” t “CREC1 OUT” t “CREC1 IN”

When pressed another time, the parts to be recorded can be changed. REC goes off.

2 When access completes, the display changes to “CREC 1 ( Note : The numbers “ ” displayed shows you the recording position addresses.

3. Ending the continuous recording mode

1 Press the MENU/NO button. The display changes to “CREC1 MODE” (C35) and REC goes off. 2 Press the A EJECT button to remove the disc.

Note 1 : The recording start addresses for IN, MID, and OUT are as follows.

IN 40h cluster MID 300h cluster OUT 700h cluster

Note 2 : The MENU/NO button can be used to stop recording anytime. Note 3 : Do not perform continuous recording for long periods of time above 5 minutes. Note 4 : During continuous recording, be careful not to apply vibration.

)” and REC lights up.

Page 23

4-6. FUNCTIONS OF OTHER BUTTONS

MDS-JE470

Function

REC MODE

PLAY MODE

LEVEL/DISPLAY/CHAR

REPEAT

Sets continuous playback when pressed in the STOP state. When pressed during continuous

playback, the tracking servo turns ON/OFF.

Stops continuous playback and continuous recording.

The sled moves to the outer circumference only when this is pressed.

The sled moves to the inner circumference only when this is pressed.

Switches between the pit and groove modes when pressed.

Switches the spindle servo mode (CLV S y CLV A).

Switches the displayed contents each time the button is pressed.

Ejects the disc.

Exits the test mode.

Contents

4-7. TEST MODE DISPLAYS

Each time the LEVEL/DISPLAY/CHAR button is pressed, the display changes in the following order. When CPLAY and CREC are started, the display will forcibly be switched to the error rate display as the initial mode.

1. Mode display

Displays “TEMP ADJUST”, “CPLAY1MODE”, etc.

2. Error rate display

Displays the error rate in the following way.

C = AD = C = Indicates the C error. AD = Indicates ADER.

3. Address display

The address is displayed as follows. (MO:recordable disc, CD:playback only disc) If the REC MODE button is pressed , the display switches from groove to pit or vice versa. h = s = (MO pit and CD) h = a = (MO groove) h = Indicates the header address. s = Indicates the SUBQ address. a = Indicates the ADIP address.

Note: “–” is displayed when the address cannnot be read.

Auto gain display (Not used in servicing)

Detrack check display (Not used in servicing)

IVR display (Not used in servicing)

Mode display

Error rate display

Address display

C1 error and Jitter display

(Not used in servicing)

AD error and Jitter display

(Not used in servicing)

Page 24

MDS-JE470

4-8. MEANINGS OF OTHER DISPLAYS

REC

SYNC

L.SYNC

OVER

B/1

A-/REP

REC MODE

DISC/LP2

SLEEP/SHUF

MONO

Display

Servo ON

Tracking servo OFF

Recording mode ON

CLV low speed mode

ABCD adjustment completed

Tracking offset cancel ON

Tracking auto gain OK

Focus auto gain OK

Pit

High reflection

CLV S

CLV LOCK

When Lit When Off

Contents

Servo OFF

Tracking servo ON

Recording mode OFF

CLV normal mode

Tracking offset cancel OFF

Groove

Low reflection

CLV A

CLV UNLOCK

4-9. AUTOMATIC SELF-DIAGNOSIS FUNCTION

This test mode performs CREC and CPLAY automatically for mainly checking the characteristics of the optical pick-up. To perform this test mode, the laser power must first be checked. Perform AUTO CHECK after the laser power check and Iop check.

Procedure

1. Press the YES button. If “LDPWR ” is displayed, it means that the laser power check has not been performed. In this case, perform the laser power check and Iop compare, and then repeat from step 1.

2. If a disc is in the mechanical deck, it will be ejected forcibly. “DISC IN” will be displayed in this case. Load a test disc (MDW-74/GA-1) which can be recorded.

3. If a disk is loaded at step 2, the check will start automatically.

4. When “XX CHECK” is displayed, the item corresponding to XX will be performed. When “06 CHECK” completes, the disc loaded at step 2 will be ejected. “DISC IN” will be displayed. Load the check disc (MD) TDYS-1.

5. When the disc is loaded in step 4, the check will automatically be resumed from “07 CHECK”.

6. After completing to test item 12, check OK or NG will be displayed. If all items are OK, “CHECK ALL OK” will be displayed. If any item is NG, it will be displayed as “NG:xxxx”.

When “CHECK ALL OK” is displayed, it means that the optical pick-up is normal. Check the operations of the other spindle motor, thread motor, etc. When displayed as “NG:xxxx”, it means that the optical pick-up is faulty. In this case, replace the optical pick-up.

4-10. INFORMATION

Display the software version.

Procedure

1. If displayed as “INFORMATION”, press the YES button.

2. The software version will be displayed.

3. Press the MENU/NO button to end this mode.

4-11. WHEN MEMORY NG IS DISPLAYED

If the nonvolatile memory data is abnormal, “E001”/”MEMORY NG” will be displayed so that the MD deck does not continue operations. In this case, set the test mode promptly and perform the following procedure.

Procedure

1. Set the test mode. (Refer to 4-2.)

2. Normally a message for selecting the test mode will be displayed. However if the nonvolatile memory is abnormal, the following will be displayed. “INIT EEP?”

3. Press the STOP button and A EJECT button together.

4. Rotate the l AMS L knob and select MDM-7A.

5. Press the l AMS L knob. If the nonvolatile memory is successfully overwritten, the normal test mode will be set and a message to select the test mode will be displayed.

Note: When this setting is doing, readjustment is necessary. (Adjustment it same as IC195 exchanged)

Page 25

SECTION 5

ELECTRICAL ADJUSTMENTS

Note : 260B: KMS-260B

260E: KMS-260E

5-1. PARTS REPLACEMENT AND ADJUSTMENT

If malfunctions caused by Optical pick-up such as sound skipping are suspected, follow the following check.

Check before replacement

Start

MDS-JE470

5-6-2.

Laser Power Check

(See page 28)

5-6-3.

Iop Compare (See page 28)

5-6-4.

Auto Check

(See page 29)

Other faults are suspected. Check the threading mechanism, etc.

Replace Optical pick-up or MDM-7A

Page 26

MDS-JE470

Adjustment flow

Start

Replace IC195

Replace OP or IO195

Replace IC101, IC195, or D101

Replace OP, IC190, or IC195

YES

• Abbreviation OP: Optical pick-up

After turning off and then on the power, initialize the EEPROM For details, refer to 4-11. WHEN MEMORY NG IS DISPLAYED (See page 24)

5-7. INITIAL SETTING OF ADJUSTMENT VALUE

(See page 31)

5-9. TEMPERATURE COMPENSATION OFFSET

ADJUSTMENT (See page 31)

5-10. LASER POWER ADJUSTMENT (See page 31)

Replace OP, IC102, IC190,

or IC195

Replace OP, IC101, IC151,

or IC195

Replace OP

Replace the spindle motor

5-6-4. Auto Check (See page 29)

YES

5-11. Iop NV SAVE (See page 32)

5-12. TRAVERSE ADJUSTMENT (See page 32) 5-13. FOCUS BIAS ADJUSTMENT (See page 33) 5-16. AUTO GAIN CONTROL OUTPUT LEVEL

ADJUSTMENT (See page 34)

OP change in Err Display mode Iop write

Spdl change in Err Display mode

End adjustments

Page 27

5-2. PRECAUTIONS FOR CHECKING LASER DIODE

EMISSION

To check the emission of the laser diode during adjustments, never view directly from the top as this may lose your eye-sight.

5-3. PRECAUTIONS FOR USE OF OPTICAL PICK-

UP (KMS-260B/260E)

As the laser diode in the optical pick-up is easily damaged by static electricity, solder the laser tap of the flexible board when using it. Before disconnecting the connector, desolder first. Before connecting the connector, be careful not to remove the solder. Also take adequate measures to prevent damage by static electricity. Handle the flexible board with care as it breaks easily.

pick-up

flexible board

MDS-JE470

laser tap

Optical pick-up flexible board

5-4. PRECAUTIONS FOR ADJUSTMENTS

1) When replacing the following parts, perform the adjustments and checks with

2) Set the test mode when performing adjustments. After completing the adjustments, exit the test mode. Perform the adjustments and checks in “group S” of the test mode.

3) Perform the adjustments to be needed in the order shown.

4) Use the following tools and measuring devices.

• Check Disc (MD) TDYS-1

(Parts No. 4-963-646-01)

• Test Disk (MDW-74/GA-1) (Parts No. 4-229-747-01)

• Laser power meter LPM-8001 (Parts No. J-2501-046-A) or

MD Laser power meter 8010S (Parts No. J-2501-145-A)

• Oscilloscope (Measure after performing CAL of prove.)

• Digital voltmeter

• Thermometer

• Jig for checking BD board waveform

(Parts No. : J-2501-196-A)

5-7. Initial setting of adjustment values

5-8. Recording of Iop information

5-9. TEMP ADJUST

5-10. Laser power adjustment

5-11. Iop NV Save

5-12. Traverse adjustment

5-13. Focus bias adjustment

5-16. Auto gain adjustment

5-6-4. AUTO CHECK

in the order shown in the following table.

Adjustment

Optical

Pick-up

IC101 IC102 IC151 IC190 IC195 D101

5) When observing several signals on the oscilloscope, etc., make sure that VC and ground do not connect inside the oscilloscope. (VC and ground will become short-circuited.)

6) Using the above jig enables the waveform to be checked without the need to solder. (Refer to Servicing Note on page 6.)

7) As the disc used will affect the adjustment results, make sure that no dusts nor fingerprints are attached to it.

Parts to be replaced

Page 28

MDS-JE470

5-5. USING THE CONTINUOUSLY RECORDED DISC

* This disc is used in focus bias adjustment and error rate check.

The following describes how to create a continuous recording disc.

1. Insert a disc (blank disc) commercially available.

2. Rotate the l AMS L knob and display “CREC1 MODE”.

3. Press the YES button again to display “CREC1 MID”. Display “CREC (0300)” and start to recording.

4. Complete recording within 5 minutes.

5. Press the MENU/NO button and stop recording .

6. Press the AEJECT button and remove the disc.

The above has been how to create a continuous recorded data for the focus bias adjustment and error rate check.

Note :

• Be careful not to apply vibration during continuous recording.

5-6. CHECKS PRIOR TO REPAIRS

These checks are performed before replacing parts according to “approximate specifications” to determine the faulty locations. For details, refer to “Checks Prior to Parts Replacement and Adjustments” (See page 9).

5-6-1. Temperature Compensation Offset Check

When performing adjustments, set the internal temperature and room temperature to 22 to 28ºC. Checks cannot be performed properly if performed after some time from power ON due to the rise in the temperature of the IC and diode, etc. So, perform the checks again after waiting some time.

Checking Procedure:

1. Rotate the l AMS L knob to display “TEMP CHECK”. (C12)

2. Press the YES button.

3. “T=@@(##) [OK]” should be displayed. If “T=@@ (##) [NG]” is displayed, it means that the results are bad. (@@ indicates the current value set, and ## indicates the value written in the non-volatile memory.)

5-6-2. Laser Power Check

Before checking, check the Iop value of the optical pick-up. (Refer to 5-8. Recording and Displaying Iop Information.)

Connection :

Laser power meter

Optical pick-up objective lens

Digital volt mete

Checking Procedure:

1. Set the laser power meter on the objective lens of the optical

pick-up. (When it cannot be set properly, press the m button or M button to move the optical pick-up.) Connect the digital volt meter to CN105 pin 1 (I+3V) and CN105 pin 2 (IOP).

2. Then, rotate the l AMS L knob and display “LDPWR

CHECK”.

3. Press the YES button once and display “LD 0.9 mW $ ”. Check that the reading of the laser power meter become the specified value.

4. Press the YES button once more and display “ LD 7.0 mW $

”. Check that the reading the laser power meter and digital

volt meter satisfy the specified value.

Specified Value :

Laser power meter reading : LD 0.9mW : 0.85-0.91mW (260B)

0.90-0.96mW (260E)

LD 7.0mW : 6.80-7.20mW (260B)

7.00-7.50mW (260E)

Digital voltmeter reading : Optical pick-up displayed value ± 10%

(Optical pick-up label)

KMS

260B 20101 H0576

Iop = 57.6 mA in this case Iop (mA) = Digital voltmeter reading (mV)/1 (Ω)

(For details of the method for checking this value, refer to “5-8. Recording and Displaying Iop Information”.)

5. Press the MENU/NO button and display “LDPWR CHECK” and stop the laser emission. (The MENU/NO button is effective at all times to stop the laser emission.)

Note 1: After step 4, each time the YES button is pressed, the

display will be switched between “LD 0.7 mW $ ”, “LD 6.2 mW $ ”, and “LD Wp $ ”. Nothing needs to be performed here.

5-6-3. Iop Compare

The current Iop value at laser power 7 mw output and reference Iop value (set at shipment) written in the nonvolatile memory are compared, and the rate of increase/decrease will be displayed in percentage.

Note: Perform this function with the optical pick-up set at room

temperature.

Procedure

1. Rotate the l AMS L knob to display “Iop Compare”.

2. Press the YES button and start measurements.

3. When measurements complete, the display changes to “±xx%yy”. xx is the percentage of increase/decrease, and OK or NG is displayed at yy to indicate whether the percentage of increase/ decrease is within the allowable range.

4. Press the MENU/NO button to end.

CN105 pin 1 (I+3V)

CN105 pin 2 (IOP)

BD board

Page 29

MDS-JE470

5-6-4. Auto Check

This test mode performs C-REC and C-PLAY automatically for mainly checking the characteristics of the optical pick-up. To perform this test mode, the laser power must first be checked. Perform Auto Check after the laser power check and Iop compare.

Procedure

1. Press the YES button. If “LDPWR minicheck” is displayed, it means that the laser power check has not been performed. In this case, perform the laser power check and Iop compare, and then repeat from step 1.

2. If a disc is in the mechanical deck, it will be ejected forcibly. “DISC IN” will be displayed in this case. Load a test disc (MDW74/GA-1) which can be recorded.

3. If a disk is loaded at step 2, the check will start automatically.

5. When the disc is loaded, the check will automatically be resumed from “07 CHECK”.

6. After completing to test item 12, check OK or NG will be displayed. If all items are OK, “CHECK ALL OK” will be displayed. If any item is NG, it will be displayed as “NG:xxxx”.

5-6-5. Other Checks

All the following checks are performed by the Auto Check mode. They therefore need not be performed in normal operation.

1. Load a continuously recorded test disc (MDW-74/GA-1). (Refer to “5-5. Using the Continuously Recorded Disc”.)

5-6-6. Traverse Check

Connection :

Oscilloscope

6. Observe the waveform of the oscilloscope, and check that the specified value is satisfied. Do not rotate the AMS knob. (Read power traverse checking)

(Traverse Waveform)

Specified value : Below 10% offset value

Offset value (%) = X 100

7. Press the YES button and display “EFB =

IA – BI

2 (A + B)

Specification A = B

MO-W”.

8. Observe the waveform of the oscilloscope, and check that the specified value is satisfied. Do not rotate the l AMS L knob. (Write power traverse checking)

(Traverse Waveform)

Specified value : Below 10% offset value

Offset value (%) = X 100

IA – BI

2 (A + B)

9. Press the YES button display “EFB = MO-P”.

Then, the optical pick-up moves to the pit area automatically and servo is imposed.

10. Observe the waveform of the oscilloscope, and check that the

specified value is satisfied. Do not rotate the l AMS L knob.

(Traverse Waveform)

BD board

CN105 pin 4 (TE)

CN105 pin 6 (VC)

V : 0.5 V/div H : 10 ms/div Input : DC mod

Checking Procedure:

1. Connect an oscilloscope to CN105 pin 4 (TE) and CN105 pin 6 (VC) of the BD board.

2. Load a test disc (MDW-74/GA-1). (Refer to Note 1.)

3. Press the M button and move the optical pick-up outside the pit.

4. Rotate the l AMS L knob and display “EF MO CHECK”.

5. Press the YES button and display “EFB =

MO-R”. (Laser power READ power/Focus servo ON/tracking servo OFF/ spindle (S) servo ON)

Specified value : Below 10% offset value

Offset value (%) = X 100

IA – BI

2 (A + B)

11. Press the YES button display “EF MO CHECK” The disc stops rotating automatically.

12. Press the A EJECT button and remove the disc.

13. Load the check disc (MD) TDYS-1.

14. Roteto the l AMS L knob and display “EF CD CHECK” (C04).

15. Press the YES button and display “EFB =

CD”. Servo is

imposed automatically.

Page 30

MDS-JE470

16. Observe the waveform of the oscilloscope, and check that the

specified value is satisfied. Do not rotate the l AMS L knob.

(Traverse Waveform)

Specified value : Below 10% offset value

Offset value (%) = X 100

IA – BI

2 (A + B)

17. Press the YES button and display “EF CD CHECK”.

18. Press the A EJECT button and remove the check disc (MD)

TDYS-1.

Note 1 : MO reading data will be erased during if a recorded disc is

used in this adjustment.

Note 2 : If the traverse waveform is not clear, connect the oscillo-

scope as shown in the following figure so that it can be seen more clearly.

Oscilloscop

BD board

CN105 pin 4 (TE)

CN105 pin 6 (VC)

330 kΩ

10pF

5-6-7. Focus Bias Check

Change the focus bias and check the focus tolerance amount.

Checking Procedure :

1. Load a continuously recorded test disc (MDW-74/GA-1). (Refer to “5-5. Using the Continuously Recorded Disc”.)

2. Rotate the l AMS L knob and display “CPLAY1 MODE”.

3. Press the YES button and display “CPLAY1 MID”.

4. Press the MENU/NO button when “C =

AD = ” is

displayed.

5. Rotate the l AMS L knob and display “FBIAS CHECK”.

6. Press the YES button and display “ / c = ”. The first four digits indicate the C error rate, the two digits after [/] indicate ADER, and the 2 digits after [c =] indicate the focus bias value. Check that the C error is below 20 and ADER is below 2.

7. Press the YES button and display “ / b = ”. Check that the C error is below 100 and ADER is below 2.

8. Press the YES button and display “ / a = ”. Check that the C error is below 100 and ADER is below 2.

9. Press the MENU/NO button, next press the A EJECT button, and remove the test disc.

5-6-8. C PLAY Check

MO Error Rate Check

Checking Procedure :

1. Load a continuously recorded test disc (MDW-74/GA-1). (Refer to “5-5. Using the Continuously Recorded Disc”.)

2. Rotate the l AMS L knob and display “CPLAY1 MODE”.

3. Press the YES button and display “CPLAY1 MID”.

4. The display changes to “C = AD = ”.

5. If the C error rate is below 20, check that ADER is 00.

6. Press the MENU/NO button, stop playback, press the A EJECT button, and test disc.

CD Error Rate Check

Checking Procedure :

1. Load a check disc (MD) TDYS-1.

2. Rotate the l AMS L knob and display “CPLAY1 MODE”.

3. Press the YES button twice and display “CPLAY1 MID”.

4. The display changes to “C1 = AD = ”.

5. Check that the C1 error rate is below 20.

6. Press the MENU/NO button, stop playback, press the A EJECT button, and the test disc.

5-6-9. Self-Recording/playback Check

Prepare a continuous recording disc using the unit to be repaired and check the error rate.

Checking Procedure :

1. Insert a recordable test disc (MDW-74/GA-1) into the unit.

2. Rotate the l AMS L knob to display “CREC1 MODE”.

3. Press the YES button to display the “CREC1 MID”.

4. When recording starts, “ REC ” is displayed, this becomes “CREC 1 (@@@@)” (@@@@ is the address), and recording starts.

5. About 1 minute later, press the MENU/NO button to stop continuous recording.

6. Rotate the l AMS L knob to display “C PLAY1 MODE”.

7. Press the YES button to display “C PLAY1 MID”.

8. “C =

AD = ” will be displayed.

9. Check that the C error becomes below 20 and the AD error below 2.

10. Press the MENU/NO button to stop playback, and press the A

EJECT button and remove the disc.

Page 31

MDS-JE470

5-7. INITIAL SETTING OF ADJUSTMENT VALUE

Note:

Mode which sets the adjustment results recorded in the non-volatile memory to the initial setting value. However the results of the temperature compensation offset adjustment will not change to the initial setting value. If initial setting is performed, perform all adjustments again excluding the temperature compensation offset adjustment. For details of the initial setting, refer to “5-4. Precautions on Adjustments” and execute the initial setting before the adjustment as required.

Setting Procedure :

1. Rotate the l AMS L knob to display “ADJ CLEAR”.

2. Press the YES button. “Complete!” will be displayed momentarily and initial setting will be executed, after which “ADJ CLEAR” will be displayed.

5-8. RECORDING AND DISPLAYING THE Iop

INFORMATION

The IOP data can be recorded in the non-volatile memory. The Iop value on the label of the optical pick-up and the Iop value after the adjustment will be recorded. Recording these data eliminates the need to read the label on the optical pick-up.

Recording Procedure :

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

2. Rotate the l AMS L knob to display “[Service]”, and press the YES button.

3. Rotate the l AMS L knob to display “Iop.Write”, and press the YES 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 l AMS L knob. To select the digit : Press the l AMS L knob

6. When the YES 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 YES button.

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

Display Procedure :

1. Rotate the l AMS L knob to display “Iop.Read”.

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

3. To end, press the l AMS L button or MENU/NO button to display “Iop Read”.

5-9. TEMPERATURE COMPENSATION OFFSET

ADJUTMENT

Save the temperature data at that time in the non-volatile memory as 25 ˚C reference data.

Note :

1. Usually, do not perform this adjustment.

2. Perform this adjustment in an ambient temperature of 22 ˚C to 28 ˚C. Perform it immediately after the power is turned on when the internal temperature of the unit is the same as the ambient temperature of 22 ˚C to 28 ˚C.

3. When D101 has been replaced, perform this adjustment after the temperature of this part has become the ambient temperature.

Adjusting Procedure :

1. Rotate the l AMS L knob and display “TEMP ADJUST”.

2. Press the YES button and select the “TEMP ADJUST” mode.

3. “TEMP = [OK]” and the current temperature data will be displayed.

4. To save the data, press the YES button. When not saving the data, press the MENU/NO button.

5. When the YES button is pressed, “TEMP = SAVE” will be displayed and turned back to “TEMP ADJUST” display then. When the MENU/NO button is pressed, “TEMP ADJUST” will be displayed immediatelly.

Specified Value :

The “TEMP = ” should be within “E0 - EF”, “F0 - FF”, “00 0F”, “10 - 1F” and “20 - 2F”.

5-10. LASER POWER ADJUSTMENT

Check the Iop value of the optical pick-up before adjustments. (Refer to 5-8. Recording and Displaying Iop Information.)

Connection :

Optical pick-up objective lens

BD board

CN105 pin 1 (I+3V)

CN105 pin 2 (IOP)

Laser power meter

Digital volt mete

Adjusting Procedure :

1. Set the laser power meter on the objective lens of the optical pick-up. (When it cannot be set properly, press the m button or M button to move the optical pick-up.) Connect the digital volt meter to CN105 pin 1 (I+3V) and CN105 pin 2 (IOP).

2. Rotate the l AMS L knob and display “LDPWR ADJUST”. (Laser power : For adjustment)

3. Press the YES button once and display “LD 0.9 mW $ ”.

4. Rotate the l AMS L knob so that the reading of the laser power meter becomes the specified value. Press the YES button after setting the range knob of the laser power meter, and save the adjustment results. (“LD SAVE $ ” will be displayed for a moment.)

5. Then “LD 7.0 mW $ ” will be displayed.

6. Rotate the l AMS L knob so that the reading of the laser power meter becomes the specified value, press the YES button and save it.

Note : Do not perform the emission with 7.0 mW more than 15

seconds continuously.

Page 32

MDS-JE470

7. Then, rotate the l AMS L knob and display “LDPWR

CHECK”.

8. Press the YES button once and display “LD 0.9 mW $ ”. Check that the reading of the laser power meter become the specified value.

9. Press the YES button once more and display “LD 7.0 mW $

”. Check that the reading the laser power meter and digital volt meter satisfy the specified value. Note down the digital voltmeter reading value.

Specified Value :

Laser power meter reading : LD 0.9mW : 0.85-0.91mW (260B)

0.90-0.96mW (260E)

LD 7.0mW : 6.90-7.10mW (260B)

7.20-7.30mW (260E)

Digital voltmeter reading : Optical pick-up displayed value ± 10%

(Optical pick-up label)

KMS

260B 20101 H0576

Iop = 57.6 mA in this case Iop (mA) = Digital voltmeter reading (mV)/1 (Ω)

(For details of the method for checking this value, refer to “5-8. Recording and Displaying IOP Information”.)

10. Press the MENU/NO button and display “LDPWR CHECK” and stop the laser emission. (The MENU/NO button is effective at all times to stop the laser emission.)

11. Rotate the l AMS L knob to display “Iop.Write”.

12. Press the YES button. When the display becomes Ref = @@@ .@ (@ is an arbitrary number), press the YES button to display “Measu=@@@.@” (@ is an arbitrary number).

13. The numbers which can be changed will blink. Input the Iop value noted down at step 9. To select the number : Rotate the l AMS L knob. To select the digit : Press the l AMS L knob

14. When the YES button is pressed, “Complete!” will be displayed momentarily. The value will be recorded in the non-volatile memory and the display will become “Iop Write”.

Note 1: After step 4, each time the YES button is pressed, the

display will be switched between “LD 0.7 mW $ ”, “LD

6.2 mW $

”, and “LD Wp $ ”. Nothing needs

to be performed here.

5-11. Iop NV SAVE

Write the reference values in the nonvolatile memory to perform “Iop compare”. As this involves rewriting the reference values, do not perform this procedure except when adjusting the laser power during replacement of the OP and when replacing the IC102. Otherwise the OP check may deteriorate.

Note: Perform this function with the optical pick-up set at room

temperature.

Procedure

1. Rotate the l AMS L knob to display “Iop NV Save”

(C06).

2. Press the YES button and display “Iop [stop]”.

3. After the display changes to “Iop =xxsave?”, press the YES

button.

4. After “Complete!” is displayed momentarily, the display changes

to “Iop 7.0 mW”.

5. After the display changes to “Iop=yysave?”, press the YES

button.

6. When “Complete!” is displayed, it means that Iop NV saving

has been completed.

5-12. TRAVERSE ADJUSTMENT

Connection :

BD board

CN105 pin 4 (TE)

CN105 pin 6 (VC)

Adjusting Procedure :

1. Connect an oscilloscope to CN105 pin 4 (TE) and CN105 pin 6 (VC) of the BD board.

2. Load a test disc (MDW-74/GA-1). (Refer to Note 1.)

3. Press the M button and move the optical pick-up outside the pit.

4. Rotate the l AMS L knob and display “EF MO ADJUST”.

5. Press the YES button and display “EFB = (Laser power READ power/Focus servo ON/tracking servo OFF/ spindle (S) servo ON)

6. Rotate the l AMS L knob so that the waveform of the oscilloscope becomes the specified value. (When the l AMS L knob is rotated, the of “EFB=

” changes and the waveform changes.) In this adjustment, waveform varies at intervals of approx. 2%. Adjust the waveform so that the specified value is satisfied as much as possible. (Read power traverse adjustment)

(Traverse Waveform)

Specification A = B

7. Press the YES button and save the result of adjustment to the non-volatile memory (“EFB = SAVE” will be displayed for a moment. Then “EFB = MO-W” will be displayed).

8. Rotate the l AMS L knob so that the waveform of the oscilloscope becomes the specified value. (When the l AMS L knob is rotated, the of “EFBMO-W” changes and the waveform changes.) In this adjustment, waveform varies at intervals of approx. 2%. Adjust the waveform so that the specified value is satisfied as much as possible. (Write power traverse adjustment)

(Traverse Waveform)

Specification A = B

9. Press the YES button, and save the adjustment results in the non-volatile memory. (“EFB = a moment.)

10. “EFB = MO-P”. will be displayed.

The optical pick-up moves to the pit area automatically and servo is imposed.

Oscilloscope

V : 0.5 V/div H : 10 ms/div Input : DC mod

MO-R”.

SAVE” will be displayed for

Page 33

MDS-JE470

11. Rotate the l AMS L knob until the waveform of the

oscilloscope moves closer to the specified value. In this adjustment, waveform varies at intervals of approx. 2%. Adjust the waveform so that the specified value is satisfied as much as possible.

(Traverse Waveform)

Specification A = B

12. Press the YES button, and save the adjustment results in the non-volatile memory. (“EFB =

SAVE” will be displayed for a moment.) Next “EF MO ADJUS” is displayed. The disc stops rotating automatically.

13. Press the A EJECT button and remove the disc.

14. Load the check disc (MD) TDYS-1.

15. Roteto l AMS L knob and display “EF CD ADJUS”.

16. Press the YES button and display “EFB = CD”. Servo is imposed automatically.

17. Rotate the l AMS L knob so that the waveform of the oscilloscope moves closer to the specified value. In this adjustment, waveform varies at intervals of approx. 2%. Adjust the waveform so that the specified value is satisfied as much as possible.

(Traverse Waveform)

5-13. FOCUS BIAS ADJUSTMENT

Adjusting Procedure :

1. Load a test disk (MDW-74/GA-1).

2. Rotate the l AMS L knob and display “CPLAY1

MODE”.

3. Press the YES button and display “CPLAY1 MID”.

4. Press the MENU/NO button when “C = AD = ” is displayed.

5. Rotate the l AMS L knob and display “FBIAS ADJUST”.

6. Press the YES button and display “ / a = ”. The first four digits indicate the C error rate, the two digits after [/] indicate ADER, and the 2 digits after [a =] indicate the focus bias value.

7. Rotate the l AMS L knob in the clockwise direction and find the focus bias value at which the C error rate becomes 220 (Refer to Note 2).

8. Press the YES button and display “ / b = ”.

9. Rotate the l AMS L knob in the counterclockwise direction and find the focus bias value at which the C error rate becomes 220.

10. Press the YES button and display “ / c = ”.

11. Check that the C error rate is below 20 and ADER is 00. Then

press the YES button.

12. If the “( ” in “ - - ( ” is above 20, press the YES

button. If below 20, press the MENU/NO button and repeat the adjustment from step 2.

13. Press the A EJECT button to remove the test disc.

Note 1 : The relation between the C error and focus bias is as

shown in the following figure. Find points a and b in the following figure using the above adjustment. The focal point position C is automatically calculated from points a and b.

Note 2 : As the C error rate changes, perform the adjustment using

the average vale.

C error

Specification A = B

18. Press the YES button, display “EFB =

SAVE” for a moment and save the adjustment results in the non-volatile memory. Next “EF CD ADJUST” will be displayed.

19. Press the A EJECT button and remove the check disc (MD)

TDYS-1.

Note 1 : MO reading data will be erased during if a recorded disc is

used in this adjustment.

Note 2 : If the traverse waveform is not clear, connect the oscillo-

scope as shown in the following figure so that it can be seen more clearly.

Oscilloscop

BD board

CN105 pin 4 (TE)

CN105 pin 6 (VC)

330 kΩ

10pF

220

c a Focus bias valu

(F. BIAS)

Page 34

MDS-JE470

5-14. ERROR RATE CHECK

5-14-1. CD Error Rate Check

Checking Procedure :

1. Load a check disc (MD) TDYS-1.

2. Rotate the l AMS L knob and display “CPLAY1

MODE”.

3. Press the YES button twice and display “CPLAY1 MID”.

4. The display changes to “C = AD = ”.

5. Check that the C error rate is below 20.

6. Press the MENU/NO button, stop playback, press the A EJECT

button, and remove the test disc.

5-14-2. MO Error Rate Check

Checking Procedure :

1. Load a continuously recorded test disc (MDW-74/GA-1). (Refer to “5-5. Using the Continuously Recorded Disc”.)

2. Rotate the l AMS L knob and display “CPLAY1 MODE”.

3. Press the YES button and display “CPLAY1 MID”.

4. The display changes to “C = AD = ”.

5. If the C error rate is below 20, check that ADER is 00.

6. Press the MENU/NO button, stop playback, press the A EJECT button, and remove the test disc.

5-15. FOCUS BIAS CHECK

Change the focus bias and check the focus tolerance amount.

Checking Procedure :

1. Load a continuously recorded test disc (MDW-74/GA-1). (Refer to “5-5. Using the Continuously Recorded Disc”.)

2. Rotate the l AMS L knob and display “CPLAY1 MODE”.

3. Press the YES button twice and display “CPLAY1 MID”.

4. Press the MENU/NO button when “C = AD = ” is displayed.

5. Rotate the l AMS L knob and display “FBIAS CHECK”.

6. Press the YES button and display “ / c = ”. The first four digits indicate the C error rate, the two digits after [/] indicate ADR, and the 2 digits after [c =] indicate the focus bias value. Check that the C error is below 20 and ADER is below 2.

7. Press the YES button and display “ / b = ”. Check that the C error is below 100 and ADER is below 2.

8. Press the YES button and display “ / a = ”. Check that the C error is below 100 and ADER is below 2

9. Press the MENU/NO button, next press the A EJECT button, and remove the continuously recorded disc.

5-16. AUTO GAIN CONTROL OUTPUT LEVEL

ADJUSTMENT

Be sure to perform this adjustment when the Optical pick-up is replaced. If the adjustment results becomes “Adjust NG!”, the Optical pickup may be faulty or the servo system circuits may be abnormal.

5-16-1. CD Auto Gain Control Output Level Adjustment

Adjusting Procedure :

1. Insert the check disc (MD) TDYS-1.

2. Rotate the l AMS L knob to display “AG Set (CD)”.

3. When the YES button is pressed, the adjustment will be performed automatically. “Complete!!” will then be displayed momentarily when the value is recorded in the non-volatile memory, after which the display changes to “AG Set (CD)”.

4. Press the A EJECT button to remove the disc.

5-16-2. MO Auto Gain Control Output Level Adjustment

Adjusting Procedure :

1. Insert the reference disc (MDW-74/GA-1) for recording.

2. Rotate the l AMS L knob to display “AG Set (MO)”.

4. Press the A EJECT button to remove the disc.

Note 1 : If the C error and ADER are above other than the speci-

fied value at points a (step 8. in the above) or b (step 7. in the above), the focus bias adjustment may not have been carried out properly. Adjust perform the beginning again.

Page 35

5-17. ADJUSTING POINTS AND CONNECTING POINTS

[BD BOARD] (SIDE A)

MDS-JE470

CN101

D101

[BD BOARD] (SIDE B)

IC151

IC190

IC195

23 1 27 1

CN103 CN102

IC101

IC102

CN105

NOTE

NOTE:It is useful to use the jig. for checking the waveform. (Refer

to Servicing Note on page 6.)

Page 36

MDS-JE470

6-1. CIRCUIT BOARDS LOCATION

SECTION 6 DIAGRAMS

KEY-SW board

PT board

VOL-SEL board (SP model)

MAIN board

DISPLAY board

BD board

• Abbreviation SP : Singapore model

Page 37

MDS-JE470

THIS NOTE IS COMMON FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS. (In addition to this, the necessary note is printed in each block.)

For schematic diagrams.

Note:

• All capacitors are in µF unless otherwise noted. pF: µµF 50 WV or less are not indicated except for electrolytics and tantalums.

• All resistors are in Ω and specified.

•

• C : panel designation.

• A : B+ Line.

• B : B– Line.

• H : adjustment for repair.

• Voltages and waveforms are dc with respect to ground

no mark : STOP

: internal component.

Note:

The components identified by mark 0 or dotted line with mark 0 are critical for safety. Replace only with part number specified.

under no-signal (detuned) conditions.

( ) : PLAY < > : REC

W or less unless otherwise

Note:

Les composants identifiés par une marque 0 sont critiques pour la sécurité. Ne les remplacer que par une piéce portant le numéro spécifié.

∗ : Impossible to measure

• Voltages are taken with a VOM (Input impedance 10 MΩ). Voltage variations may be noted due to normal production tolerances.

• Waveforms are taken with a oscilloscope. Voltage variations may be noted due to normal production tolerances.

• Circled numbers refer to waveforms.

• Signal path.

E : PB j : REC p : PB (DIGITAL OUT) l : REC (DIGITAL IN)

• Abbreviation CND : Canadian model SP : Singapore model HK : Hong Kong model AUS : Australian model

For printed wiring boards.

Note:

• X : parts extracted from the component side.

• Y : parts extracted from the conductor side.

•

• b : Pattern from the side which enables seeing.

(The other layers' patterns are not indicated.)

Caution: Pattern face side: Parts on the pattern face side seen from the (Side B) pattern face are indicated. Parts face side: Parts on the parts face side seen from the (Side A) parts face are indicated.

: Through hole.

These are omitted.

• WAVEFORMS

– BD Board –

IC101 ek (RF)

IC101 ef (FE)

(Play mode)

IC101 wh (TE)

(Play mode)

IC151 qh (OSCI)

22 nesc

IC151 wj (LRCK)

22.6 µsec

IC151 wk (XBCK)

354 nsec

IC151 o; (FS4)

1.3Vp-p

0.2Vp-p

1.6Vp-p

3.1Vp-p

3.2Vp-p

3.8Vp-p

3.2Vp-p

– MAIN Board –

1 IC1 qd (XOUT)

2.7Vp-p

100 nsec

2 IC550 qs

2.6Vp-p

22 nsec

5.67 µsec

IC171 3

1.0Vp-p

22 nsec

Page 38

MDS-JE470

6-2. BLOCK DIAGRAMS – BD SECTION –

HR901

OVER WRITE HEAD

OVER WRITE

HEAD DRIVE

IC181

, Q181, 182

SCTX

FILTER

DIGITAL SIGNAL PROCESSOR,

EFM/ACIRC ENCODER/DECODER,

SHOCK PROOF MEMORY CONTROLLER,

ATRAC ENCODER/DECODER

EFMO

100

FILI

PCO

CLTV

FILO

PLL

IC151 (1/2)

CONVERTER

SAMPLING

RATE

IC151 (1/2)

ADDT

DATAI

XBCKI

LRCKI

WAVE

SHAPER

IC600

OPTICAL

RECEIVER

IC611

ADDT

(Page39)

DIGITAL IN

(OPTICAL)

OPTICAL PICK-UP (KMS-260B/260E)

C B

I J

LASER DIODE

2-AXIS

DEVICE

FCS+

(FOCUS)

(TRACKING)

FCS– TRK+ TRK–

HF MODULE

MOD

DETECTOR

ILCC

LDPD

FOCUS/TRACKING COIL DRIVE,

SPINDLE/SLED MOTOR DRIVE

M101

(SPINDLE)

M102

(SLED)

IC141

AUTOMATIC

POWER CONTROL

Q121, 122

LASER ON

SWITCH

Q101

OUT4F

OUT4R

OUT2F

OUT2R

OUT1F

21 23

OUT1R

OUT3F

12 10

OUT3R

PSB

DIN0

DIN1

DOUT

DADT

XBCK LRCK

FS256

CLOCK

GENERATOR

INTERNAL BUS

MONITOR CONTROL

MNT0

MNT1

MNT2

MNT3

XBUSY

SHOCK

SWDT

MNT2 (XBUSY)

MNT1 (SHOCK)

SYSTEM CONTROLLER

IC1 (1/2)

+5V

REFERENCE

VOLTAGE SWITCH

Q440,445

EEPROM

IC195

26 28 27 29

SCLK

OSCI

OSCO

D-RAM

BUFFER

IC171

DADT, BCK, LRCK

(Page39)

IC153

D0 – D3A00 – A09

1, 2, 24, 25

DQ1 – DQ4

A0 – A9

5, 9 – 12, 14 – 18

RAS

CAS

+3.3V

REG.

SWDT, SCLK

+5VD+3V

(Page39)

XOE

XWE XRAS XCAS

49, 48, 50, 51

34 – 31, 36 – 40, 45

43 47 46 44

IC190

S101

(LIMIT IN)

S103

(OUT SW)

S104

(PLAY SW)

S105

(REC POSITION)

• SIGNAL PATH

: PLAY (ANALOG OUT) : REC (ANALOG IN) : REC (DIGITAL IN)

SDA

SCL

54560

LD-LOW

SDA

SCL

LIMIT-IN

OUT-SW

PLAY-SW

REC-SW

REFLECT

PROTECT

S102

(REFLECT/PROTECT DETECT)

HIGH REFELECT RATE/

WRITE PROTECT

LOW REFELECT RATE/

UN-PROTECT

XINT

SENS

LDOUT

VCC

IN2

VCC

OUT2

ATRAC

CPU

INTERFACE

SRDT

SENS

SRDT

SWDT

DIGITAL

AUDIO

ENCODER/DECODER

INTERFACE

SCLK

XLAT

SCLK

SWDT

XLATCH

UNREG

+12V

48 47

MORFI

MORFO

AMP

APC

IN4R

IN4F

IN2F

IN2R

IN1F

IN1R

IN3F

14 15

IN3R

RF AMP

I-V

LD/PD

AMP

SPFD

SPRD

RFO

46 40

B.P.F.

AMP

ABCD

AMP

APCREF

83 13 67 65 66 75 74 63 64

APCREF

SFDR

SRDR

FFDR

FRDR

TFDR

TRDR

RF AMP,

FOCUS/TRACKING ERROR AMP

IC101

TEMP

WBL

ADFM ADIN

B.P.F.

FOCUS

ERROR AMP

TRACKING

ERROR AMP

COMMAND

SERIAL/PARALLEL

CONVERTER,

DECODER

SWDT

SCLK

XLAT

181716

XRST

PWM GENERATOR

RECP

AUTOMATIC

POWER

CONTROL

DIGITAL SERVO

SIGNAL

PROCESS

DIGITAL SERVO

SIGNAL PROCESSOR

IC151 (2/2)

AGCI

WBL

PEAK &

BOTTOM

3029

CONVERTER

RF AGC

& EQ

WBL

V-I

AUX1

ABCD

ANALOG MUX

A/D CONVERTER

FROM CPU INTERFACE

AUTO

SEQUENCER

AUX

PEAK

BOTM

ADFG

ABCD

F0CNT

ASYO

ASYI

PEAK

BOTM

XLRF CKRF DTRF

XLAT

SCLK

SWDT

COMPA-

RFI

RATOR

ADFG

DEMODULATOR/

DECODER

F0CNT

HF MODULE

SWITCH

IC102

ADIP

, Q131 – 134

SPINDLE

SERVO

SPFD

94 93

EFM/ACIRC

SHOCK PROOF

ENCODER/DECODER

MEMORY CONTROLLER

SUBCODE

PROCESSOR

SPRD

DQSY

SQSY

XINT

12 11 14 9 8 5 6 7 1 2 3 4

20 25 58 32 33 50 59 4831

SQSY

DQSY

LDON

DIG-RST

WR-PWR

MOD

LDIN

67 66

3 6

MOTOR DRIVE

IC440

IN1

OUT1

7 2

M103

(LOADING)

Page 39

– MAIN SECTION –

ADDT

(Page38)

DADT, BCK, LRCK

(Page38)

SWDT, SCLK

(Page38)

1024FS

(Page38)

DADT

BCK

LRCK

SWDT SCLK

MDS-JE470

A/D, D/A CONVERTER

IC500

J300

SDTO

AUDIO

INTERFACE

CONTROLLER

SDTI

BICK

LRCK

CDTI

CCLK

CONTROL

INTERFACE

HIGH-PASS FILTER,

DIGITAL

ATTENUATOR

DIGITAL

ATTENUATOR,

SOFT MUTE

A/D

CONVERTER

BLOCK

D/A

CONVERTER

BLOCK

SUB-

TRACKTION

CLOCK

GENERATOR,

CLOCK DIVIDER

AINL

AINR

AOUTL+

AOUTL–

AOUTR+

AOUTR–

XTI

LINE AMP

IC310

MIX AMP

IC360

MIX AMP

IC360

OSC

(1/2)

(2/2)

LOW-PASS

FILTER

IC370

LOW-PASS

FILTER

IC370

(1/2)

(2/2)

MUTING

Q181, 281

ANALOG

OUT

IC550

X550

45.1584MHz

REMOTE CONTROL

RECEIVER

IC781

MUTING

CONTROL SWITCH

Q380

D382 D381

• SIGNAL PATH

: PLAY (ANALOG OUT) : REC (ANALOG IN)

D726

STANDBY

D775

MD LP

X15

10MHz

C769, R769

OSC

LED DRIVE

Q726

LED DRIVE

Q755

IIC POWER

A1 IN

SYSTEM CONTROLLER

IC1 (2/2)

1 3

ROTARY

ENCODER

GND

S713

l AMS L

PUSH ENTER

JOG0

JOG1

8887

KEY0 – KEY2

96,95,94

S701 – 706, 711, 712, S714-716, 721 – 724,

S726

SIRCS

P DOWN

19 12

MUTE

S.RST

IC600(2/2)

BUFFER

3 5

RESET VCC

IC406

RESET

VT +3.3V

(TO IC500)

IIC DATA

STB

IIC DATA

IIC BUSY

IIC POWER

+3.3V

REGULATOR

Q490

(BACKUP)

+3.3V (SYS)

+3.3V

LITHIUM BATTERY

–32V

(FL DRIVER (IC760) B–)

IC411

REGULATOR

3 1

OUT+5V VIN

BT406

+5V

D409

D408

D406

CN406

AUDIO

CIRCUIT

G1 – G12

40 – 51

G1 – G12

ADA,RESET

RST

G13

521

FL DRIVE

Q767

G13

A1 OUT

XIN

XOUT

OSCI

OSCO

ADA,LATCHDAT

FLDT

FLCK

FLCS

1 2

6162

CLK

FL/LED DRIVER

IC760

S1–S35

5 – 39

S1 – S35

FLUORESCENT INDICATOR TUBE

FL750

IIC DATA

IIC BUSY

+3.3V

REGULATOR

IC401

–32V

REGULATOR

IC421

UNREG +12V

UNREG –12V

DRIVER (IC440) B+

IIC CLK

GND

D471, 472

D466–467

UNREG +12V

LOADING MOTOR

3 4

1 2

GND

RECT

D431,432

RECT

D401-404

(TO FL750)

RECT D421

RECT

D411,412

+5V

J800

PC LINK

TR950

POWER

TRANSFORMER

TR900

POWER

TRANSFORMER

RELAY DRIVE

Q911

VOLTAGE

SELECTOR

115V 230V

S990

Page 40

MDS-JE470

6-3. PRINTED WIRING BOARD – BD Board – • See page 36 for Circuit Board Location.

OPTICAL PICK - UP

BLOCK

(KMS - 260B/260E)

BD BOARD (SIDE A)

There are a few cases that the part isn’t mounted in model is printed on diagram.

BD BOARD (SIDE B)

123

• Semiconductor

Location

Ref. No. Location

D101 A-1

Q101 B-1 Q131 C-1 Q132 B-1 Q133 B-1 Q134 B-1

HR901

OVER

WRITE HEAD

B A

MAIN BOARD

CN1

(Page 45)

MAIN BOARD

CN2

(Page 45)

• Semiconductor

Location

Ref. No. Location

D181 D-3 D183 D-3

IC101 A-3 IC102 B-3 IC141 C-1 IC151 C-2 IC153 C-3 IC171 D-2

Ref. No. Location

IC181 D-3 IC190 D-1 IC195 D-2

Q121 B-3 Q122 B-3 Q181 D-3 Q182 D-3

Page 41

6-4. SCHEMATIC DIAGRAM – BD SECTION (1/2) – • See page 37 for Waveforms. • See page 52 for IC Pin Functions. • See page 50 for IC Block Diagrams.

(KMS - 260B/260E)

MDS-JE470

BOARD

(2/2)

(Page 42)

BOARD

(2/2)

(Page 42)

BOARD

(Page 42)

(2/2)

Page 42

MDS-JE470

6-5. SCHEMATIC DIAGRAM – BD SECTION (2/2) – • See page 37 for Waveforms. • See page 53 for IC Pin Functions. • See page 50 for IC Block Diagrams.

BOARD

(1/2)

(Page 41)

MAIN

BOARD(1/2)

CN2

(Page 43)

BOARD

(1/2)

(Page 41)

BOARD

(1/2)

(Page 41)

MAIN

BOARD(1/2)

CN1

(Page 43)

Page 43

6-6. SCHEMATIC DIAGRAM – MAIN SECTION (1/2) – • See page 37 for Waveforms. • See page 56 for IC Pin Functions. • See page 51 for IC Block Diagrams.

27P

BOARD(2/2)

CN102

(Page42)

DISPLAY

BOARD CN701

(Page47)

CN2

LD-IN

LD-OUT

D-GND

PROTECT SW

REFRECT SW

SCL

SDA

EEP-WP

SHCK

XBUSY

SWDT

OUT-SW

SCLK

XLATCH

SRDT

PLAY-SW

SENS

DIG-RST

SQSY

REC-SW

DQSY

WRPWR

XINT

LIMIT-IN

LDON

IOP

MOD

CN3 15P

PDOWN

SYS+3.3V

-32V

DISP.GND

RMC

FLCS

FLCK

FLDT

KEY0

JOG0

KEY1

JOG1

KEY2

L451

JUMPER

C680

JUMPER

PROTECT

REFRECT

EEP-WP

SHOCK

XBUSY

OUT-SW

XLATCH

PLAY-SW

DIG-RST

REC-SW

WRPWR

LIMIT-IN

A D

S C E R

R61

L D

O L

IC1

SYSTEM

CONTROLLER

C C

10k

C62

0.1

N G

US,CND,SP

AEP,AUS,HK,UK

S Q

R17

Y S Q D

F E R

FR E R

N W

S Q

Y S Q S

R21 10k

SCL

SDA

SWDT

SCLK

SRDT

SENS

SQSY

DQSY

XINT

LDON

MOD

JUMPER

L450

RMC

FLCS

FLCK

FLDT

KEY 0

JOG 0

KEY 1

JOG 1

KEY 2

50V

C426

Q380

UN4111-TA

MUTING

CONTROL

SWITCH

D381

1SS133T-72

10k

R88

R87

R94

R93

R92

R97

FLCS

JOG 0

JOG 1

0.01

KEY 2

KEY 1

KEY 0

R95

C88

US,CND,SP

R1090

10k

0.01

C87

0.001

C89

R90

100k

AEP,AUS,HK,UK

10k

R1091

R100 100k

STB

*BEEP SW

REC

FLCS

*D.VOL 0

*D.VOL 1

JOG 0

JOG 1

IOP

DESTINATION

MODEL SEL

TIMER

KEY 3

KEY 2

KEY 1

AVSS

KEY 0

VREF

AVCC

-IN

T D L F

JUMPER

C C N

E T Y B

O L

M30803MG-107FP

*R17

JUMPER

10k

-T T

-T

X15

10MHz

C O H S

H S

A T

B K

E S

100p

C58

Y S U B

IIC

R23 10k

R22 10k

-S

-IN

-S

-R

R51

10k

R53

R55

R49 10k

R44 10k

S N E S

Y S U B

IIC

-S

-R

T U O 1 A

XLATCH

OUT-SW

XBUSY

EEP-WP

SCL

PROTECT

L:DIN1/H:CLIP

EPM

ADA.LATCH

ADA.RESET

MUTE

XBCKI

CLIP-RX

CLIP-TX

KB.CLK-CTL

SCLK

SRDT

R E

SWDT

IIC

R E

A T

IIC

R28 10k

JUMPER

R41

100k

JUMPER

10k

R46

R50

XLATCH

D382

OUT-SW

EEP-WP

PROTECT

R40

JUMPER

ADA.RESET

R33

R31

XBUSY

LATCH

1SS133T-72

SCL

C100

50V

SCLK

SRDT

SWDT

MDS-JE470

MAIN

BOARD

(2/2)

(Page44)

CN1

ADDT

LRCK

DADT

BCK

L666

JUMPER

L662

JUMPER

L660

JUMPER

L657

L658

C657

DIN0

DIN1

DIN0

DIN1

0.1

C651

R436

R435

330k

56k

C658

0UH

0.1

JUMPER

L653 0µH

L651

C652

JUMPER

0.1

SN74HCU

C601

0.01

WAVE

SHAPER

0.1

IC600

04AN

ADDT

LRCK

DADT

REG.GND

BCK

MCK.GND

MCLK

D-GND

XBCKI

REG.GND

LRCKI

REG.GND

DADTI

REG.+5V

D-OUT

H.+5V

H.GND

DIN-0

M.GND

DIN-1

M.GND

M.+5V

R437

R614

47k

23P

BOARD(2/2)

CN103

(Page42)

J300

ANALOG OUT

ANALOG IN

JUMPER

C166

R166

0.0001

22k

C171

IC370(2/

NJM4558D

C361

100 16V

IC370(1/

NJM4558D

0.0047

R172

1.5k

C172

0.001

C366

100 16V

C272

0.001

R272

1.5k

2) C271

0.0047

IC310(2/

NJM4558D

IC360(2/ NJM4558D

R171

1.5k 7

IC360(1/

NJM4558D

R271

1.5k 1

R266

22k

C266

0.0001

LINE

AMP

C113

LOW-PASS

FILTER

JUMPER

C176

R176

22 25V

US,CND,SP

AEP,AUS,HK,UK

C212

25V

C112

25V

680

R177 100k

R277 100k

C276

R276

25V

680

C316

100 16V

R213 220k

C311

R113

100

220k

16V

IC310(1/ NJM4558D

R181

R281

10k

Q181

UN4216-TA

R178

330

MUTING

C177 470p

C277 470p

R278

330

Q281

*R181,281

UN4216-TA

MUTING

C211 470p

C111 470p

R212 15k

R211

33k

R112

R111

15k

33k

MIX AMP

2) C161

R162

R164

220p

R215

D212

1SS133T-72

R115

R163

10k

1SS133T-72

0.0001

C265

0.0001

10k

R161

10k

R381

C165

D112

R380 100k

150k

R263

R261

10k

C261 220p

R262

R264

10k

R165 22k

R265

22k

C213

25V

SWDT

SCLK

LATCH

ADA.RESET

AK4524

CONVERTER

R515

100

C515

R516

100p

100

R517

C516

100

100p

C517 100p

C519

0.001

C520

C522

220

0.1

IC500

10V

C523

C524

100

AD/DA

0.1

10V

C530

0.1

L522

L524

C12

0.1

SDTI

CDTI

SDTO

CCLK

BICK

LRCK

CIF

XTALE

XTI

XTO

CLKO

TEST

AGND

DGND

VREF

AOUTL-

AINL

AOUTL+

AINR

AOUTR-

VCOM

AOUTR+

L523

JUMPER

C19

C16

0.001

0.1

L668

JUMPER

R855

R851

10k

JUMPER

DADT

R514

ADDT

R513

R512

BCK

LRCK

R511

D211

1SS133T-72

L506

JUMPER

R556

330

C556 47pF

C531

C536

0.1

C532

0.1

C505

0.1

C504

100 10V

D111

1SS133T-72

C503

0.0022 C502

0.0022

C501

C500

0.1

220 10V

R554

330 C557 10pF

IC550

TC7WHU04FU

(TE12R)

OSC

L551

JUMPER

R552

330

C554

L555

C552

R551

0.1

X550

45.1584MHz

0.001

12p

1µH

C555

C553

4.7p

C551

100 10V

JUMPER

C550

0.1

L552

Q490

2SC945TP-

+3.3V

REGULATOR

L349

JUMPER

R491

330

C490

C491

1000

0.1

6.3V

R492

1.2k

C492

0.1

C612

4.7 50V

C611

0.1

L611

10µH

C613

0.01

OPTICAL

RECEIVER

IC611

GP1F38R

R623 470k

DIGITAL IN

(OPTICAL)

MAIN

BOARD

(2/2)

(Page44)

Page 44

MDS-JE470

6-7. SCHEMATIC DIAGRAM – MAIN SECTION (2/2) – • See page 51 for IC Block Diagrams.

IC440

54641L

LOADING DRIVER

R441

22k

R442

15k

Q440,445

REFERENCE

VOLTAGE

ITCH

R443

22k

D433

R432

1SS133T-72

R433

C432

330

25V

R434

REGULATOR

5F7805L

+5V

1SS133T-72

IC411

22k

IC401 BA033T

+3.3V

D406

R406 220

REGULATOR

C404

100 10V

C412

0.1

D409

D408

11EQS04

CN406

BT406

L1220

R431

680

100

C431

25V

C402

0.1

C411

10000

16V

FB465

0µH

MAIN

BOARD

(1/2)

(Page43)

C442

0.01

Q445

2SA1175-HFE

R407

10k

M62016L

RESET

Q440

UN4211-TA

C441

100 16V

11EQS04

IC406

C406

C405

0.33

0.01

50V

C416 1000

6.3V

100k

R423

10000

D431

1SS133T-72

D432

1SS133T-72

CN400

D401

11EQS04

D402

11EQS04

C401

16V

FB410

D403

D404

11EQS04

D411

11ES2-NTA2B

D412

11ES2-NTA2B

D461

11ES2-NTA2B

C461

470

D462

16V

11ES2-NTA2B

FB460

0µH

C466

470 16V

D466

11ES2-NTA2B

D467

11ES2-NTA2B

PT BOARD CN921

(Page49)

(CHASSIS)

R424

R425

220

D422

RD4.7EB2

451

PER

JUM

452

PER

JUM

IIC CLK

IIC DATA

IIC POW

IIC BUSY

C425

50V

R420

PER

R422

C424

120k

0.1

IC421

M5293L

-32V

REGULATOR

R805

R801

10k

R808

220

R807

220

L804

µH

4.7

C814

C804

0.1

L803

PER

JUM

10k

R806

100

R802

100

C800

0.1

J800

PC-LINK

C423

100 63V

R911

2.2k

R912

47k

D421

11ES2-NTA2

Q911

2SD2144S-TP-UVW

RELAY

DRIVE

Page 45

6-8. PRINTED WIRING BOARD – MAIN SECTION – • See page 36 for Circuit Board Location.

MDS-JE470

There are a few cases that the part isn’t mounted in model is printed on diagram.

CN102

(Page40)

JW149

JW150

JW148

R41

C58

R31

R33

JW146

C62

JW164

L450

L451

26 27

JW144 JW145

R28

JW163

JW154

JW162

JW261

C426

JW143

JW147

JW153

JW155 JW156 JW157

D381

JW142

C19

JW141

JW159

CN3

IC1

JW158

9 10 11 12

DISPLAY

BOARD

CN701

(Page46)

JW140

R17

R435

JW160

C623

JW131

JW139

C621

C450

JW138

C89

C88

C87

CND,SP,US

JW127 JW128 JW129

JW137

R87

R436

R437

JW130

JW136

100

R88

JW135

JW122

X15

R1090

JW452

161 JW

L551

C550

JW133

JW134

JW132

C12

C16

R100

R91

R90

R1091

AEP,AUS,HK,UK

JW451

IC600

R614

C613

C612

C611

R556

R552

L552

JW126 JW125 JW124

R92 R93

R94 R95

R97

JW121 JW120

JW119 JW118 JW117 JW116

C551

IC550

L555

JW123

C601

R551

C555

JW115

Q380

C552

C554

C536

R381

JW114

L349

C531

JW110

JW111

JW103

R380

X550

C553

R554

JW113

L506

JW105

L523

C532

JW112

R511

C515

R512

C516

R515 R516 R517

R181

Q181

L522

R178

R513

C517

L524

R165

JW109

JW104

C176

C177

R514

C519

C520

JW106

R176

IC500

C530

C161

C166

C361

R177

C522

R162

R163

R164

R166

R281

Q281

JW101

C277

J300

C524

R161

C165

IC611

DIGITAL

(OPTICAL)

LRLR

ANALOG

OUT

C505

C523

R171

C171

R172

C172

IC370

R276

R277

C504

C261

C503

R262

R264 R263

IC360

JW108

C366

C276

R278

J300

D111

C502

R261

C265

R265

JW107

C316

C112

R111

C111

ANALOG

D211

C500

C113

R266

R112

R115

R271

C271

R272

C272

C311

R113

EP559

C501

D212

D112

R215

C213

C266

IC310

C212

R213

R212

R211

C211

1-681-735-

• Semiconductor

Location

Ref. No. Location

(12)

D111 B-12 D112 C-12 D211 B-12 D212 B-12 D381 F-8

D382 E-7 D401 E-3 D402 E-2 D403 E-3 D404 E-2

D406 E-6 D408 E-6 D409 E-6 D411 F-2 D412 F-2

D421 E-4 D422 D-6 D431 D-2 D432 D-2 D433 D-6

D461 G-2 D462 G-2 D466 G-2 D467 G-2

IC1 D-9 IC310 E-12 IC360 D-11 IC370 E-11 IC401 E-6

IC406 E-6 IC411 F-3 IC421 C-6 IC440 C-4 IC500 B-11

IC550 B-10 IC600 F-9 IC611 G-9

Q181 F-11 Q281 F-11 Q380 F-10 Q440 C-5 Q445 C-4

Q490 F-6 Q911 E-3

3 4 5 6 7

BD BOARD

JW167

JW166

CN2

BD BOARD

CN103

(Page40)

L651

D402

D404

C461

R431

C466

C658

L658

L666

R912

R911

IC411

JW248

C680

C401

JW247

L668

JW244

JW217

JW246

C441

JW245

JW216

JW228

Q445

JW230

C416

JW241

JW243

JW215

D421

JW242

IC440

R442

JW229

JW240

R21

R22

R443

JW219 JW220 JW221

JW224

JW226 JW227

JW239

JW222 JW223

JW225

JW231

JW232 JW233

C442

Q440

R441

JW238

JW237

C490

JW211

JW213

JW212

JW235

JW210

C431

C491

JW234

C814

JW209

C402

R491

L803

R432

IC401

1 2 3

C404

BT406

R492

JW236

R433

L804

C423

R420

C492

D433

C804

R424

R434

Q490

IC421

C432

D406

R423

R425

R406

D409

JW199

C800

D422

JW179

1 2

JW198

JW207

JW208

5 C424

R422

C425

JW180

D408

CN406

C406

C405

JW197

JW206

R808

R805

3 4

1 2

J800

JW178

JW196

JW205

R807

JW195

JW169

JW170 JW171 JW172

JW173

JW177

R407

IC406

JW194

R801

L660

D401

D403

L662

C660

Q911

JW250

JW218

1 2 3

JW249

D431

EP940

D432

C657

C651

(CHASSIS)

CN1

L657

L653

JW251

JW252

C411

FB465

MAIN BOARD

CN400

C942

D412

C941

D411

FB460

FB410

D461

D462

D466

D467

JW253

PT BOARD

CN921

(Page48)

JW176

JW193

R812

JW168

JW181

JW192

JW204

R802

JW191

JW203

R806

JW174

R61

JW182

JW190

JW201

C100

JW183

JW189

JW200

JW202

R55

R50

R53

JW188

R49

JW187

R851

JW152

R51

R23

JW186

JW151

R40

R46

R44

JW175

JW184

JW185

D382

PC LINK

Page 46

MDS-JE470

6-9. PRINTED WIRING BOARD – DISPLAY SECTION – • See page 36 for Circuit Board Location.

There are a few cases that the part isn’t mounted in model is printed on diagram.

3 4 5 6 7

9 10 11 12

DISPLAY BOARD

JW810

JW803

S704

R715

JW802

S706

JW806

S715

INPUT

R716

MAIN

BOARD

CN3

FL750

IC760

C766

S722

PLAY MODE

S723

DISPLAY/CHAR

R769

R761

R762

C764

REPEAT

C769

R760

R763

S724

LEVEL/

C760

C761 C762 C763

C765

JW786

C753

MDLP

D775

JW795

JW788

JW787

JW789

JW791

JW794

R775

Q767

JW792

JW793

C767

R767

LP719

JW796

JW798

EJECT

R721

JW799

JW801

S721

JW811

JW812

CN710

C782

Q775

R782

1 2 3

IC781

JW781

C751

JW785 JW784

FLUORESCENT INDICATOR TUBE

C781

R781

JW783

JW782

(Page45)

JW804

S705

R706

JW805

S703

R704

R705

REC MODE

CN701

S716

JW809

S702

S701

REC

R702

R703

JW808

JW807

LP709

C709

R712

S714

CLEAR

S711

MENU/

3 2 1

S713 AMS

l L

PUSH ENTER

R714

R713

S712

YES

1-681-736-

(12)

• Semiconductor

Location

KEY–SW BOARD

R723

R724

R725

Ref. No. Location

JW752

S726

D726

STANDBY

C740

AEP,AUS,HK, SP,UK

R1726

R726

R722

JW750

Q726

JW751

1-681-737-

CN720

(12)

D726 F-1 D775 C-6

IC760 B-4 IC781 A-2

Q726 E-6 Q767 C-7 Q775 B-2

Page 47

6-10. SCHEMATIC DIAGRAM – DISPLAY SECTION –

S724

AEP,AUS,

HK,SP,UK

(CHASSIS)

D726

SEL5221S-TP15

STANDBY

C740

0.1

R726

S726

LEVEL/DISPLAY/CHAR

R725

R1726

220

Q726

UN4211

R724

47k

4.7k

REPEAT

S723

R723

3.3k

R722

S722

PLAY MODE

2.2k

POWER LED

3.3V

KEY2

GND

CN720

MDS-JE470

P.DOWN

SYS 3.3

-32

GND

RMC

FLCS

FCLK

FLDT

KEY0

JOG0

KEY1

JOG1

KEY2

CN701

15P

MAIN(1/2)

BOARD

CN3

(Page43)

CN710

POWER LED

3.3V

KEY2

GND

S716

REC MODE

R716

S721

S713

ENCODER

AMS

/PUSH ENTER

R715

33k

10k

S715

INPUT

CLEAR

S714

R714

4.7k

R713

EJECT

R712

2.2k

3.3k

S711

S712

MENU/NO

YES

C751

S703

R703

3.3k

S702

R702

2.2k

S701

REC

C709

0.1

(CHASSIS)

R706

33k

S706

FL750

FLUORESCENT

INDICATOR

TUBE

C753

50V

IC781

NJL73H400A

REMOTE

CONTROL

RECEIVER

FL/LED

DRIVER

5 1 S

9 1 S

IC760

MSM9202-07GS-K

50V

S705

R705

R704

10k

4.7k

S704

R782

R763

100

R762

3.3k

C769

R769

47p

C765

C764

0.1

6.3V

C760

0.1

C761

0.001

C762

0.001

C763

0.001

D775

SEL5821A-TP15

MD LP

Q775

UN4211

LED DRIVE

100

R781

R775

220

C781

C782

100

0.01

10V

G13

C767

0.001

0 6 G

Q767

UN4216

FL DRIVE

C766

2 1

0.1

R767 100k

R761

R760

100

Page 48

MDS-JE470

6-11. PRINTED WIRING BOARD – POWER SECTION – • See page 36 for Circuit Board Location.

There are a few cases that the part isn’t mounted in model is printed on diagram.

MAIN BOARD

CN400

(Page45)

(CHASSIS)

3 4 5 6 7

S990

VOLTAGE SELECT

VOL-SEL BOARD

CN990

115V 230V

S990

AC IN

1-681-738-

(12)

PT BOARD

EXCEPT SP

LF900

CN900

1-681-734-

(12)

EP900

C924

LP900

C923

CN921

WIRE(10P)

C952

C951

JW901

TR900

JW904

CN950

C910

RY910

JW903

TR950

EXCEPT SP

JW902

* NOT REPLACEABLE: BUILT IN TRANSFORMER

D910

Page 49

6-12. SCHEMATIC DIAGRAM – POWER SECTION –

MDS-JE470

TR950

S990

VOLTAGE SELECTOR

115V

EP900 EARTH PLATE

MAIN

BOARD(2/2)

CN400

(Page49)

CN921

C924

0.1

C923

0.1

C952

0.1

C951

0.1

BUILT IN TRANSFORMER

TRANSFORMER

NOT REPLACEABLE:

TR900

POWER

230V

CN900

CN990

CN950

WIRE

JW903

JW904

JUMPER

C910

0.0022

RY910 RELAY

D910

1SS133-72

JW902

JW901

EXCEPT

LF900

LINE FILTER

(CHASSIS)

Page 50

MDS-JE470

6-13. IC BLOCK DIAGRAMS

IC101 CXA2523AR (BD BOARD)

3VC

IVR

CVB

GSW

MORFO47MORFI46RFO45OPN

RFA1

–

IC151 CXD2662R (BD BOARD)

EFMO

DVSS

TEST3

TEST2

TEST1

FGIN

SPFD

100

99 98 97 96 95 94 93

OPO43ADDC42COMPP41COMPO40AGCI39RF AGC38RF37PEAK

USROP

–

RFA2

– –

–

1 2

GRVA

EBAL

HLPT

OFST

GRV

–

FBAL

–1

–2

–1

– – – –

+ +

– –

+ +

EE'

ESW

FF'

RFA3

PTGR

PBSW

ABCDA

FEA

ATA

EFB TESW

–

BPF3T

BPF22

WBL

RF AGC EQ

USRC

PEAK

BOTTOM

WBL

PTGR

ADIP

AGC

PEAK3T

P-P

WBL

3T WBL

PBH

DET

–1

–2

–1

–2

DET

TEMP

AUX

BPFC

SEA

TEA

VI CONV

BOTM

ABCD

AUX

32 ADFG

31 ADAGC

30 ADIN

29 ADFM

28 SE

27 CSLED

26 TE

25 WBLADJ

MNT0

MNT1

MNT2

MNT3

SWDT

SCLK

XLAT

SRDT

SENS

XRST

SQSY

DQSY

RECP

XINT

OSCI

OSCO

XTSL

DIN0

DIN1

DOUT

DATAI

LRCKI

XBCKI

ADDT

MONITOR CONTROL

CPU I/F

PROCESSOR

GENERATOR

DADT

SUBCODE

CLOCK

LRCK

XBCK

FS256

EACH BLOCK

DVDD

IC141 BH6511FS-E2 (BD BOARD)

SPRD

SPINDLE

SERVO

ADIP

DEMODULATOR/

DECODER

EACH BLOCK

DIGITAL

AUDIO

SFDR91SRDR90FS489FRDR88FFDR87DVDD86TFDR85TRDR84TEST083APCREF82DTRF81CKRF80XLRF79F0CNT78ADFG77TEST476DCHG

PWM

GENERATOR

SERVO

DSP

APC

SHOCK RESISTANT

MEMORY CONTROLLER

SAMPLING

I/F

ENCODER/DECODER

RATE

CONVERTER

ATRAC/ATRAC3

ADDRESS/DATA BUS A00 - A11, D0 - D3

A1140A0839A0738A0637A0536A0435A1034A0033A0132A0231A03

CONVERTER

XOE

DVSS

A/D

XCAS

AUTO

A09

XRAS

SEQUENCER

DECODER

ENCODER/

EFM/ACIRC

COMP

DRAM

XWE

ANALOG

MUX

50D249D048D147

PLL

AVSS

ADRB

ADRT

AVDD

ADIO

AUX1

ABCD

BOTM

PEAK

CLTV

FILO

FILI

PCO

AVSS

RFI

BIAS

AVDD

ASYI

ASYO

MVCI

AUXSW

TEMPR

COMMAND

SCRI - PARA

DECODE

SWDT

SCLK

BGR

CAPA–

CAPA+

IN2R

IN2F

VM2

OUT2F

PGND2

OUT2R

VM12

OUT1R

PGND1

OUT1F

VM1

PREDRIVEPREDRIVE

VM3

IN1F

INTERFACE

IN3F

VREF

XLAT

XSTBY

F0CNT

VREF

EQADJ

3TADJ

VCC

32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17

IN4F

AMP

VM4

INTERFACE

CHARGE

PUMP.

OSC

INTERFACE

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

GND

IN4R

OUT4F

AMP

PGND4

OUT4R

VM34

AMP

OUT3R

PGND3

AMP

AMPAMPAMP

OUT3F

IN1R

IN3R

PSB

10PD

11APC

12APCREF

–

GND

TEMPI

Page 51

IC500 AK4524 (MAIN BOARD)

VCOM

AINR

CONVERTER

AINL

VREF

AGND

TEST

XTO

XTI

XTALE

4 5 6

8 9

CLOCK

GENERATOR

& DIVIDER

BLOCK

A/D

D/A

CONVERTER

BLOCK

28 27 26 25

24 23 22

21 20 19

MDS-JE470

AOUTR+ AOUTR– AOUTL+ AOUTL–

DGND VD VT

CLKO M/S PD

LRCK

BICK

SDTO

SDTI

11 12 13 14

AUDIO

INTERFACE

CONTROLLER

H.P.F.

D-ATT

D-ATT,

S-MUTE

IC440 M54641L (MAIN BOARD)

VCC

1 2

OUT2

IN1

GND

INPUT

AMP.

INPUT

AMP.

REG

CONTROL

POWER AMP.

IC421 M5293L (MAIN BOARD)

CIF

CONTROL

INTERFACE

VCC

OUT1

IN2

18 17

CCLK

CDTI

GND

ON/OFF

VIN

REFERENCE

VOLTAGE

–

OVERHEAT

PROTECTION

27k

OVERCURRENT

LIMITTER

REFERENCE

VOLTAGE

VOUT

Page 52

MDS-JE470

6-14. IC PIN FUNCTION DESCRIPTION

• IC101 CXA2523AR RF Amplifier (BD BOARD)

Pin No.

4 - 9

Pin Name I/O

A to F

APC

APCREF

GND

TEMPI

TEMPR

SWDT

SCLK

XLAT

XSTBY

F0CNT

VREF

EQADJ

3TADJ

Vcc

WBLADJ

CSLED

ADFM

ADIN

ADAGC

ADFG

AUX

ABCD

BOTM

PEAK

RFAGC

AGCI

COMPO

COMPP

ADDC

OPO

OPN

RFO

MORFI

MORFO

I-V converted RF signal I input

I-V converted RF signal J input

Middle point voltage (+1.5V) generation output

Signal input from the optical pick-up detector

Light amount monitor input

Laser APC output

Reference voltage input for setting laser power

—

Ground

Temperature sensor connection

Reference voltage output for the temperature sensor

Serial data input from the CXD2662R

Serial clock input from the CXD2662R

Latch signal input from the CXD2662R “L”: Latch

Stand by signal input “L”: Stand by

Center frequency control voltage input of BPF22, BPF3T, EQ from the CXD2662R

Reference voltage output (Not used)

Center frequency setting pin for the internal circuit EQ

Center frequency setting pin for the internal circuit BPF3T

—

+3V power supply

Center frequency setting pin for the internal circuit BPF22

Tracking error signal output to the CXD2662R

—

External capacitor connection pin for the sled error signal LPF

Sled error signal output to the CXD2662R

FM signal output of ADIP

ADIP signal comparator input ADFM is connected with AC coupling

—

External capacitor connection pin for AGC of ADIP

ADIP duplex signal output to the CXD2662R

I3 signal/temperature signal output to the CXD2662R

Focus error signal output to the CXD2662R

Light amount signal output to the CXD2662R

RF/ABCD bottom hold signal output to the CXD2662R

RF/ABCD peak hold signal output to the CXD2662R

RF equalizer output to the CXD2662R

—

External capacitor connection pin for the RF AGC circuit

Input to the RF AGC circuit The RF amplifier output is input with AC coupling

User comparator output (Not used)

User comparator input (Fixed at “L”)

—

External capacitor pin for cutting the low band of the ADIP amplifier

User operation amplifier output (Not used)

User operation amplifier inversion input (Fixed at “L”)

RF amplifier output

Groove RF signal is input with AC coupling

Groove RF signal output

Description

• Abbreviation APC: Auto Power Control AGC: Auto Gain Control

Page 53

• IC151 CXD2662R Digital Signal Processor, Digital Servo Signal Processor (BD BOARD)

Pin No.

31 - 34

36 - 40

Pin Name I/O

MNT0 (FOK)

MNT1 (SHCK)

MNT2 (XBUSY)

MNT3 (SLOC)

SWDT

SCLK

XLAT

SRDT

SENS

XRST

SQSY

DQSY

RECP

XINT

OSCI

OSCO

XTSL

DIN0

DIN1

DOUT

DADTI

LRCKI

XBCKI

ADDT

DADT

LRCK

XBCK

FS256

DVDD

A03 to A00

A10

A04 to A08

A11

DVSS

XOE

XCAS

A09

XRAS

XWE

Desription

Not used (open)

Track jump detection signal output to the system control

In the state of executire command signal output

Not used (open)

Writing data signal input from the system control

Serial clock signal input from the system control

I (S)

Serial latch signal input from the system control

I (S)

Reading data signal output to the system control

O (3)

Internal status (SENSE) output to the system control

O (3)

Reset signal input from the system control “L”: Reset

I (S)

Subcode Q sync (SCOR) output to the system control

“L” is output every 13.3 msec. Almost all, “H” is output

Digital In U-bit CD format or MD format subcode Q sync (SCOR) output to the system

control

Laser power switching input from the system control “H”: Recording, “L”: Playback

Interrupt status output to the system control

Recording data output enable input from the system control

System clock input (512Fs=22.5792 MHz)

System clock output (512Fs=22.5792 MHz) (Not used)

System clock frequency setting “L”: 45.1584 MHz, “H”: 22.5792 MHz (Fixed at “H”)

Digital audio input (Optical input)

Digital audio input (Optical input) (Not used)

Digital audio output (Optical output) (Not used)

Serial data input

LR clock input “H” : Lch, “L” : R ch

Serial data clock input

Data input from the A/D converter

Data output to the D/A converter

LR clock output for the A/D and D/A converter (44.1 kHz)

Bit clock output to the A/D and D/A converter (2.8224 MHz)

11.2896 MHz clock output (Not used)

+3V power supply (Digital)

DRAM address output

DRAM address output (Not used)

DRAM address output

DRAM address output (Not used)

Ground (Digital)

—

Output enable output for DRAM

CAS signal output for DRAM

Address output for DRAM

RAS signal output for DRAM

Write enable signal output for DRAM

MDS-JE470

* I (S) stands for Schmidt input, I (A) for analog input, O (3) for 3-state output, and O (A) for analog output in the column I/O

Page 54

MDS-JE470

50, 51

Pin Name I/O

D2, D3

MVCI

ASYO

ASYI

AVDD

BIAS

RFI

AVSS

PCO

FILI

FILO

CLTV

PEAK

BOTM

ABCD

AUX1

ADIO

AVDD

ADRT

ADRB

AVSS

DCHG

TEST4

ADFG

F0CNT

XLRF

CKRF

DTRF

APCREF

TEST0

TRDR

DescriptionPin No.

I/O

Data input/output for DRAM

I/O

Clock input from an external VCO (Fixed at “L”)

I (S)

Playback EFM duplex signal output

Playback EFM comparator slice level input

I (A)

+3V power supply (Analog)

Playback EFM comparator bias current input

I (A)

Playback EFM RF signal input

I (A)

Ground (Analog)

—

Phase comparison output for the recording/playback EFM master PLL

O (3)

Filter input for the recording/playback EFM master PLL

I (A)

Filter output for the recording/playback EFM master PLL

O (A)

Internal VCO control voltage input for the recording/playback EFM master PLL

I (A)

Light amount signal peak hold input from the CXA2523AR

I (A)

Light amount signal bottom hold input from the CXA2523AR

I (A)

Light amount signal input from the CXA2523AR

I (A)

Focus error signal input from the CXA2523AR

I (A)

Auxiliary A/D input

I (A)

Middle point voltage (+1.5V) input from the CXA2523AR

I (A)

Monitor output of the A/D converter input signal (Not used)

O (A)

+3V power supply (Analog)

A/D converter operational range upper limit voltage input (Fixed at “H”)

I (A)

A/D converter operational range lower limit voltage input (Fixed at “L”)

I (A)

Ground (Analog)

—

Sled error signal input from the CXA2523AR

I (A)

Tracking error signal input from the CXA2523AR

I (A)

Connected to +3V power supply

I (A)

Test input (Fixed at “H”)

ADIP duplex FM signal input from the CXA2523AR (22.05 ± 1 kHz)

I (S)

Filter f0 control output to the CXA2523AR

Control latch output to the CXA2523AR

Control clock output to the CXA2523AR

Control data output to the CXA2523AR

Reference PWM output for the laser APC

PWM output for the laser digital APC (Not used)

Tracking servo drive PWM output (–)

• Abbreviation EFM: Eight to Fourteen Modulation PLL : Phase Locked Loop VCO: Voltage Controlled Oscillator

Page 55

MDS-JE470

Pin No.

96 - 98

100

Pin Name I/O

TFDR

DVDD

FFDR

FRDR

FS4

SRDR

SFDR

SPRD

SPFD

FGIN

TEST1 to TEST3

DVSS

EFMO

• Abbreviation EFM: Eight to Fourteen Modulation

Tracking servo drive PWM output (+)

+3V power supply (Digital)

Focus servo drive PWM output (+)

Focus servo drive PWM output (–)

176.4 kHz clock signal output (X’tal) (Not used)

Sled servo drive PWM output (–)

Sled servo drive PWM output (+)

Spindle servo drive PWM output (–)

Spindle servo drive PWM output (+)

I (S)

Test input (Fixed at “L”)

Ground (Digital)

—

EFM output when recording

Description

Page 56

MDS-JE470

• IC1 M30803MG-107FP SYSTEM CONTROL (MAIN BOARD)

Pin No.

1 FLDT O Serial data signal output to the display driver.

2 FLCK O Serial clock signal output to the display driver. L: Active

3 A1-IN I A1 Control input. (Fixed at L)

4 SIRCS I Remote control input.

5 - 7 NC — Not used.

8 BYTE I Data bus changed input. (Connected to ground.)

9 CNVSS — Ground.

10 XIN-T I Not used . (open)

11 XOUT-T O Not used . (open)

12 S.RST I System rest input. L : ON

13 XOUT O Main clock output. (10MHz)

14 GND — Ground.

15 XIN I Main clock input. (10MHz)

16 VCC — Power supply. (+3.3V)

17 NMI I Fixed at H. (Pull-up)

18 DQSY I Digital in sync input. (Record system)

19 P.DOWN I Power down detection input. L: Power down

20 SQSY I ADIP (MO) sync or subcode Q (PIT) sync input from CXD2662R.(Playback system)

21 KB.CLK I Keyboard clock input. (Fixed at H)

22 KB.DATA I Keyboard data input. (Fixed at H)

23 IIC BUSY I IIC cable connect check. L: Active

24 A1 OUT O Not used. (open)

25 XINIT I Interrupt status input from CXD2662R.

26 *BEEP O Not used. (open)

27 LRCKI O Not used. (open)

28 IIC POWER O Media commucator start-up check.

29 IIC CLK O IIC serial clock output.

30 IIC DATA I/O IIC serial data input/output.

31 SWDT O Writing data signal output to the serial bus.

32 SRDT I Reading data signal input from the serial bus.

33 SCLK O Clock signal output to the serial bus.

34 KB.CLK-CTRL O Keyboard clock ON/OFF signal output. L: OFF H: ON

35 CLIP-TX O Not used. (open)

36 CLIP-RX I Not used. (open)

37 XBCK1 O Not used. (open)

38 MUTE O Line out muting output. L: Mute

39 ADA.RESET O Reset signal output to the AK4524. L: Active

I/O

DescriptionPin Name

Page 57

MDS-JE470

Pin No.

40 ADA. LATCH O Latch signal output to the AK4524. L: Active

41 EPN I Not used. (Fixed at L)

42 L : DINT1/H : CLIP — Not used. (open)

43 NC — Not used.

44 PROTECT I Recording-protection claw detection input from the protection detection switch. H: Protect

45 SCL O Clock signal output to the EEP-ROM.

46 CE O Not used.

47 EEP-WP O EEP-ROM write protect signal output. L: write possibility

48 XBUSY I In the state of executive command from the CXD2662R

49 OUT-SW I Detection signal input from the loading out detection switch.

50 XLATCH O Latch signal output to the serial bus.

51 PLAY-SW I Detection signal input from the playback position detection switch. L: PLAY

52 DIG-RST O Digital rest signal output to the CXD2662R and motor driver. L: Reset

53 REC-SW I Detection signal input from the recording position detection switch. L: REC

54 WR PWR O Write power ON/OFF output. L: OFF H: ON

55 LIMIT-IN I Detection input from the limit switch. L: Sled limit-In H: Sled limit-Out

56 MOD O Laser modulation switching signal output. (L: STOP, H : PLAY, pluse : REC)

57 LDON O Laser ON/OFF control output. H: Laser ON

58 SENS I Internal status (SENSE) input from the CXD2662R.

59 SHCK I Track jump signal input from the CXD2662R.

60 SDA I/O Data signal input/output pin with the EEP-ROM.

61 REFLECT I Disk reflection rate detection input from the reflect detection switch. H: Disk with low reflection rate.

62 VCC I Power supply. (+3.3V)

63 NC — Not used.

64 GND — Ground.

65 LOAD LO O Loading motor voltage control output L: High voltage H: Low voltage

66 LOAD OUT O Loading motor control output. H: eject

67 LOAD IN O Loading motor control output. H: loading

68 - 71 MODEL SEL 0 - 3 — Not used.

72 - 80 NC — Not used.

I/O

DescriptionPin Name

Page 58

MDS-JE470

DescriptionPin NamePin No. I/O

81 STB O Strobe signal output to the power supply circuit. H: Power supply ON: L: standby

82 BEEP SW — Not used.

83 REC — Not used.

84 FLCS O Chip select signal output to the MSM9202 (IC760)

85, 86 D.VOL0,1 — Not used.

87, 88 JOG0, JOG1 I Jog dial pulse input from the rotary encoder.

89 IOP I Optical Pick-up voltage (current) detect signal input.

90 DISTINATION I Model discrimination.

91 MODEL SEL I Model discrimination.

92 TIMER I Not used. (Fixed at H)

93 KEY3 I Not used. (Fixed at H)

94, 95 KEY2, 1 I Key input pin (A/D input)

96 AVSS — Ground. (Analog)

97 KEY0 I Key input pin (A/D input)

98 VREF I A/D reference voltage.

99 AVCC I Power supply. (+3.3V)

100 NC I Not used. (Fixed at L)

Page 59

NOTE:

• -XX, -X mean standardized parts, so they may

have some differences from the original one.

• Items marked “*” are not stocked since they

are seldom required for routine service. Some delay should be anticipated when ordering these items.

• The mechanical parts with no reference number

in the exploded views are not supplied.

• Hardware (# mark) list and accessories and

packing materials are given in the last of this parts list.

7-1. CHASSIS SECTION

MECHANISM SECTION (MDM-7A)

SECTION 7

EXPLODED VIEWS

• Color indication of Appearance Parts Example : KNOB, BALANCE (WHITE)• • • (RED)

• Abbreviation

CND : Canadian model SP : Singapore model HK : Hong Kong model AUS : Australian model

↑↑

Parts color Cabinet's color

MDS-JE470

The components identified by mark 0 or dotted line with mark 0 are critical for safety. Replace only with part number specified.

Les composants identifiés par une marque 0 sont critiques pour la sécurité. Ne les remplacer que par une pièce portant le numéro spécifié.

7 5

UK, HK

TR900

not supplied

not

Front panel section

Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks

1 X-4953-448-1 FOOT ASSY 2 4-232-237-01 FOOT (DIA. 30) 3 4-233-025-01 PANEL, BACK (AEP,UK) 3 4-233-025-11 PANEL, BACK (US) 3 4-233-025-21 PANEL, BACK (CND)

3 4-233-025-31 PANEL, BACK (SP) 3 4-233-025-41 PANEL, BACK (HK) 3 4-233-025-51 PANEL, BACK (AUS) 4 9-910-999-31 RIVET (DIA. 3), NYLON 5 1-681-734-12 PT BOARD

6 4-221-887-11 SCREW, +PTTWH (M3) (S) TITE 7 4-228-689-01 INSULATOR 8 4-228-643-11 SCREW (+BVTTWH M3), STEP 9 1-792-811-11 WIRE (FLAT TYPE) (23 CORE) 10 1-757-928-11 WIRE (FLAT TYPE) (27 CORE)

* 11 3-703-244-00 BUSHING (2104), CORD

0 12 1-696-846-21 CORD, POWER (AUS)

supplied

0 12 1-777-071-61 CORD, POWER (AEP,UK,HK,SP) 0 12 1-783-531-31 CORD, POWER (US,CND)

13 A-2007-906-A MAIN BOARD, COMPLETE (US,CND)

13 A-2007-910-A MAIN BOARD, COMPLETE (AEP,UK,HK,AUS) 13 A-2007-914-A MAIN BOARD, COMPLETE (SP)

* 14 1-569-972-21 SOCKET, SHORT 2P

15 4-210-291-01 SCREW (CASE 3 TP2)...(BLACK) 15 4-210-291-11 SCREW (CASE 3 TP2)...(SILVER)

16 4-232-149-31 CASE (408226)...(BLACK) 16 4-232-580-31 CASE (408226)...(SILVER)

0 17 1-569-008-21 ADAPTOR, CONVERSION (SP) 0 17 1-770-019-11 ADAPTOR, CONVERSION PLUG 3P (UK,HK)

18 1-681-738-12 VOL-SEL BOARD (SP)

0 TR900 1-435-543-11 TRANSFORMER, POWER (US,CND) 0 TR900 1-435-544-11 TRANSFORMER, POWER (AEP,UK,HK,AUS) 0 TR900 1-435-545-11 TRANSFORMER, POWER (SP)

not supplied

Page 60

MDS-JE470

7-2. FRONT PANEL SECTION

FL750

not supplied

Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks

51 X-4953-710-1 PANEL ASSY, FRONT...(BLACK)

(AEP,UK,HK,SP,AUS) 51 X-4953-711-1 PANEL ASSY, FRONT...(SILVER) (AEP,UK) 51 X-4953-712-1 PANEL ASSY, FRONT...(BLACK) (US,CND) 54 4-951-620-01 SCREW (2.6X8), +BVTP 56 4-228-630-01 SPRING (LID), TENSION COIL

57 4-228-629-81 LID (MD)...(BLACK) 57 4-230-848-21 LID (MD)...(SILVER) 59 1-681-737-12 KEY-SW BOARD 60 A-2007-907-A DISPLAY BOARD, COMPLETE (US,CND)

60 A-2007-911-A DISPLAY BOARD, COMPLETE (AEP,UK,HK,AUS)

60 A-2007-915-A DISPLAY BOARD, COMPLETE (SP) 61 4-949-935-41 CUSHION (FL) 62 4-212-590-01 HOLDER (FL) 63 1-757-930-11 WIRE (FLAT TYPE) (17 CORE) 64 4-231-928-01 KNOB (AMS)...(BLACK)

64 4-231-928-11 KNOB (AMS)...(SILVER) 65 3-354-981-11 SPRING (SUS), RING FL750 1-517-986-11 INDICATOR TUBE, FLUORESCENT

Page 61

7-3. MECHANISM SECTION-1

(MDM-7A)

MDS-JE470

319

302

311

310

308

304

305

306

312

309

317

314

303

313

315

316

305

318

307

320

302

301

Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks

* 301 4-996-267-01 BASE (BU-D)

302 4-231-319-01 SCREW (2X6) CZN, +B (P) TRI 303 4-227-007-01 GEAR (SB) 304 4-227-025-01 BELT (LOADING) 305 3-372-761-01 SCREW (M1.7), TAPPING

306 4-227-002-01 GEAR, PULLEY 307 4-226-999-01 LEVER (HEAD) 308 X-4952-665-1 SPRING (SHT) ASSY, LEAF 309 A-4672-990-F LOCK (HOLDER) 310 4-229-533-01 SPRING (STOPPER), TORSION

311 4-231-118-01 SPRING (HOLDER), TENSION 312 4-227-019-02 PLATE (HOLDER) ASSY, RETAINER 313 4-227-013-01 SPRING (EJ), TENSION 314 4-226-995-01 SLIDER (EJ) 315 4-226-996-01 LIMITTER (EJ)

316 4-226-997-04 SLIDER 317 4-226-998-01 LEVER (CHG) 318 4-227-006-01 GEAR (SA) 319 A-4735-075-A HOLDER ASSY 320 4-226-994-01 GUIDE (L)

Page 62

MDS-JE470

7-4. MECHANISM SECTION-2

(MDM-7A)

357

355

354

352

S102

365

358

366

359

M101

356

359

HR901

364

362

361

360

362

M102

368

353

367

353

352

363

351

not supplie

353

M103

352

The components identified by mark 0 or dotted line with mark 0 are critical for safety. Replace only with part number specified.

Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks

351 A-4725-471-A BD BOARD, COMPLETE 352 4-231-319-01 SCREW (2X6) CZN, +B (P) TRI 353 3-372-761-01 SCREW (M1.7), TAPPING 354 4-226-993-01 RACK 355 4-227-014-01 SPRING (RACK), COMPRESSION

356 4-226-992-01 BASE, SL 357 1-678-514-11 PWB, FLEXIBLE

0 358 A-4672-541-A OPTICAL PICK-UP KMS-260E

359 4-988-560-01 SCREW (+P 1.7X6) 360 4-996-265-01 SHAFT, MAIN

361 4-226-989-01 CHASSIS

362 4-232-270-01 SCREW (1.7X3.5), +PWH 363 4-226-990-01 BASE (BU-A) 364 4-227-023-01 SPRING (SPINDLE), TORSION 365 4-227-004-01 GEAR (LC)

366 4-227-005-01 GEAR (LD) 367 4-227-009-01 GEAR (SD) 368 4-227-008-01 GEAR (SC) HR901 1-500-670-11 HEAD, OVER LIGHT M101 A-4672-898-A MOTOR ASSY, SPINDLE

M102 A-4735-076-A MOTOR ASSY, SLED M103 A-4735-074-A MOTOR ASSY, LOADING S102 1-771-957-11 SWITCH, PUSH (2 KEY) (REFLECT/PROTECT SW)

Les composants identifiés par une marque 0 sont critiques pour la sécurité. Ne les remplacer que par une pièce portant le numéro spécifié.

Page 63

SECTION 8

Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks

NOTE:

• Due to standardization, replacements in the parts list may be different from the parts specified in the diagrams or the components used on the set.

• -XX, -X mean standardized parts, so they may have some difference from the original one.

• Items marked “*” are not stocked since they are seldom required for routine service. Some delay should be anticipated when ordering these items.

• CAPACITORS: uF: µF

• RESISTORS All resistors are in ohms. METAL: metal-film resistor METAL OXIDE: Metal Oxide-film resistor F: nonflammable

Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks

A-4725-471-A BD BOARD, COMPLETE

***************

C101 1-135-259-11 TANTAL.CHIP 10uF 20% 6.3V C102 1-135-259-11 TANTAL.CHIP 10uF 20% 6.3V C103 1-162-970-11 CERAMIC CHIP 0.01uF 10% 25V C104 1-164-227-11 CERAMIC CHIP 0.022uF 10% 25V C105 1-115-416-11 CERAMIC CHIP 0.001uF 5% 25V

C106 1-162-970-11 CERAMIC CHIP 0.01uF 10% 25V C107 1-162-970-11 CERAMIC CHIP 0.01uF 10% 25V C108 1-162-969-11 CERAMIC CHIP 0.0068uF 10% 25V C109 1-164-677-11 CERAMIC CHIP 0.033uF 10% 16V C110 1-163-038-00 CERAMIC CHIP 0.1uF 25V

C111 1-117-720-11 CERAMIC CHIP 4.7uF 10V C112 1-110-563-11 CERAMIC CHIP 0.068uF 10% 16V C113 1-162-968-11 CERAMIC CHIP 0.0047uF 10% 50V C114 1-125-837-11 CERAMIC CHIP 1uF 10% 6.3V C115 1-162-966-11 CERAMIC CHIP 0.0022uF 10% 50V

C116 1-164-227-11 CERAMIC CHIP 0.022uF 10% 25V C117 1-162-970-11 CERAMIC CHIP 0.01uF 10% 25V C118 1-165-176-11 CERAMIC CHIP 0.047uF 10% 16V C119 1-165-176-11 CERAMIC CHIP 0.047uF 10% 16V C120 1-164-156-11 CERAMIC CHIP 0.1uF 25V

ELECTRICAL PARTS LIST

• COILS uH: µH

• SEMICONDUCTORS In each case, u: µ, for example: uA...: µA... , uPA... , µPA... , uPB... , µPB... , uPC... , µPC... , uPD..., µPD...

• Abbreviation CND : Canadian model SP : Singapore model HK : Hong Kong model AUS : Australian model

C160 1-162-927-11 CERAMIC CHIP 100PF 5% 50V C161 1-162-970-11 CERAMIC CHIP 0.01uF 10% 25V C162 1-162-970-11 CERAMIC CHIP 0.01uF 10% 25V C163 1-125-891-11 CERAMIC CHIP 0.47uF 10% 10V C164 1-162-927-11 CERAMIC CHIP 100PF 5% 50V

C165 1-162-968-11 CERAMIC CHIP 0.0047uF 10% 50V C166 1-125-891-11 CERAMIC CHIP 0.47uF 10% 10V C167 1-164-245-11 CERAMIC CHIP 0.015uF 10% 25V C169 1-164-156-11 CERAMIC CHIP 0.1uF 25V C171 1-164-156-11 CERAMIC CHIP 0.1uF 25V

C172 1-164-156-11 CERAMIC CHIP 0.1uF 25V C180 1-117-370-11 CERAMIC CHIP 10uF 10V C181 1-126-206-11 ELECT CHIP 100uF 20% 6.3V C182 1-163-038-00 CERAMIC CHIP 0.1uF 25V C183 1-164-156-11 CERAMIC CHIP 0.1uF 25V

C184 1-117-970-11 ELECT CHIP 22uF 20% 10V C185 1-131-872-11 CERAMIC CHIP 1000PF 10% 630V C191 1-126-206-11 ELECT CHIP 100uF 20% 6.3V C192 1-164-156-11 CERAMIC CHIP 0.1uF 25V C193 1-126-206-11 ELECT CHIP 100uF 20% 6.3V

C194 1-164-156-11 CERAMIC CHIP 0.1uF 25V C195 1-164-156-11 CERAMIC CHIP 0.1uF 25V C196 1-164-156-11 CERAMIC CHIP 0.1uF 25V C1401 1-117-720-11 CERAMIC CHIP 4.7uF 10V

When indicating parts by reference number, please include the board name.

The components identified by mark 0 or dotted line with mark 0 are critical for safety. Replace only with part number specified.

Les composants identifiés par une marque 0 sont critiques pour la sécurité. Ne les remplacer que par une pièce portant le numéro spécifié.

MDS-JE470

C121 1-164-156-11 CERAMIC CHIP 0.1uF 25V C125 1-117-720-11 CERAMIC CHIP 4.7uF 10V C128 1-164-156-11 CERAMIC CHIP 0.1uF 25V C131 1-117-720-11 CERAMIC CHIP 4.7uF 10V C132 1-164-156-11 CERAMIC CHIP 0.1uF 25V

C133 1-164-156-11 CERAMIC CHIP 0.1uF 25V C141 1-126-206-11 ELECT CHIP 100uF 20% 6.3V C142 1-164-156-11 CERAMIC CHIP 0.1uF 25V C143 1-164-156-11 CERAMIC CHIP 0.1uF 25V C144 1-162-970-11 CERAMIC CHIP 0.01uF 10% 25V

C145 1-164-156-11 CERAMIC CHIP 0.1uF 25V C151 1-117-370-11 CERAMIC CHIP 10uF 10V C152 1-164-156-11 CERAMIC CHIP 0.1uF 25V C153 1-164-156-11 CERAMIC CHIP 0.1uF 25V C154 1-126-206-11 ELECT CHIP 100uF 20% 6.3V

C155 1-164-156-11 CERAMIC CHIP 0.1uF 25V C156 1-164-156-11 CERAMIC CHIP 0.1uF 25V C157 1-164-156-11 CERAMIC CHIP 0.1uF 25V C158 1-162-927-11 CERAMIC CHIP 100PF 5% 50V C159 1-162-927-11 CERAMIC CHIP 100PF 5% 50V

CN101 1-766-833-21 CONNECTOR, FFC/FPC (ZIF) 21P CN102 1-784-835-21 CONNECTOR, FFC(LIF(NON-ZIF))27P CN103 1-784-834-21 CONNECTOR, FFC(LIF(NON-ZIF))23P

* CN104 1-580-055-21 PIN, CONNECTOR (SMD) 2P

CN105 1-784-859-21 CONNECTOR, FFC(LIF(NON-ZIF))7P

<DIODE>

D101 8-719-988-61 DIODE 1SS355TE-17 D181 8-719-080-81 DIODE FS1J6 D183 8-719-080-81 DIODE FS1J6

<IC>

IC101 8-752-080-95 IC CXA2523AR IC102 8-759-473-51 IC TLV2361CDBV IC141 8-759-836-79 IC BH6519FS-E2 IC151 8-752-404-64 IC CXD2662R IC153 8-759-671-27 IC MSM51V4400E-70TS-K

IC171 8-759-096-87 IC TC7WU04FU(TE12R) IC181 8-759-481-17 IC MC74ACT08DTR2

Page 64

MDS-JE470

Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks

IC190 8-759-460-72 IC BA033FP-E2 IC195 8-759-640-41 IC BR24C08F-E2

JW201 1-216-295-91 SHORT 0 JW202 1-216-295-91 SHORT 0 JW203 1-216-295-91 SHORT 0 JW903 1-216-295-91 SHORT 0 JW904 1-216-295-91 SHORT 0

<COIL>

L101 1-500-245-11 FERRITE 0uH L102 1-500-245-11 FERRITE 0uH L103 1-500-245-11 FERRITE 0uH L105 1-414-235-22 FERRITE 0uH L106 1-500-245-11 FERRITE 0uH

L121 1-500-245-11 FERRITE 0uH L122 1-500-245-11 FERRITE 0uH L131 1-500-245-11 FERRITE 0uH L141 1-216-296-91 CONDUCTOR CHIP 0 L142 1-216-296-91 CONDUCTOR CHIP 0

L143 1-216-296-91 CONDUCTOR CHIP 0 L144 1-216-296-91 CONDUCTOR CHIP 0 L145 1-216-296-91 CONDUCTOR CHIP 0 L146 1-469-855-21 FERRITE 0uH L147 1-469-855-21 FERRITE 0uH

L161 1-500-245-11 FERRITE 0uH L171 1-500-245-11 FERRITE 0uH L180 1-469-855-21 FERRITE 0uH L181 1-469-855-21 FERRITE 0uH L182 1-500-245-11 FERRITE 0uH

L183 1-216-296-11 SHORT 0 L184 1-216-296-11 SHORT 0

R116 1-216-839-11 METAL CHIP 33K 5% 1/16W R117 1-216-837-11 METAL CHIP 22K 5% 1/16W R118 1-218-855-11 METAL CHIP 2.2K 0.5% 1/16W R119 1-218-863-11 METAL CHIP 4.7K 0.5% 1/16W R120 1-218-889-11 METAL CHIP 56K 0.5% 1/16W

R121 1-218-863-11 METAL CHIP 4.7K 0.5% 1/16W R122 1-218-855-11 METAL CHIP 2.2K 0.5% 1/16W R123 1-216-819-11 METAL CHIP 680 5% 1/16W R124 1-216-809-11 METAL CHIP 100 5% 1/16W R125 1-216-815-11 METAL CHIP 330 5% 1/16W

R126 1-216-819-11 METAL CHIP 680 5% 1/16W R127 1-216-845-11 METAL CHIP 100K 5% 1/16W R128 1-219-724-11 METAL CHIP 1 1% 1/4W R129 1-216-298-00 METAL CHIP 2.2 5% 1/10W R130 1-216-829-11 METAL CHIP 4.7K 5% 1/16W

R131 1-216-833-11 METAL CHIP 10K 5% 1/16W R132 1-216-841-11 METAL CHIP 47K 5% 1/16W R133 1-216-821-11 METAL CHIP 1K 5% 1/16W R134 1-216-821-11 METAL CHIP 1K 5% 1/16W R135 1-216-821-11 METAL CHIP 1K 5% 1/16W

R136 1-216-295-91 SHORT 0 R138 1-216-833-11 METAL CHIP 10K 5% 1/16W R150 1-216-833-11 METAL CHIP 10K 5% 1/16W R151 1-216-833-11 METAL CHIP 10K 5% 1/16W R154 1-216-833-11 METAL CHIP 10K 5% 1/16W

R155 1-216-864-11 METAL CHIP 0 5% 1/16W R156 1-216-864-11 METAL CHIP 0 5% 1/16W R157 1-216-809-11 METAL CHIP 100 5% 1/16W R158 1-216-809-11 METAL CHIP 100 5% 1/16W R159 1-216-833-11 METAL CHIP 10K 5% 1/16W

R160 1-216-833-11 METAL CHIP 10K 5% 1/16W R161 1-216-833-11 METAL CHIP 10K 5% 1/16W R163 1-216-809-11 METAL CHIP 100 5% 1/16W R164 1-216-809-11 METAL CHIP 100 5% 1/16W R165 1-216-809-11 METAL CHIP 100 5% 1/16W

Q101 8-729-403-35 TRANSISTOR UN5113-TX Q121 8-729-403-35 TRANSISTOR UN5113-TX Q122 8-729-101-07 TRANSISTOR 2SB798-T1DK Q131 8-729-026-53 TRANSISTOR 2SA1576A-T106-QR Q132 8-729-903-10 TRANSISTOR FMW1-T-148

Q133 8-729-402-93 TRANSISTOR UN5214-TX Q134 8-729-402-93 TRANSISTOR UN5214-TX Q181 8-729-018-75 TRANSISTOR 2SJ278MYTR Q182 8-729-017-65 TRANSISTOR 2SK1764KYTR

R101 1-216-829-11 METAL CHIP 4.7K 5% 1/16W R102 1-216-853-11 METAL CHIP 470K 5% 1/16W R103 1-216-863-11 RES-CHIP 3.3M 5% 1/16W R104 1-216-853-11 METAL CHIP 470K 5% 1/16W R105 1-216-825-11 METAL CHIP 2.2K 5% 1/16W

R106 1-216-825-11 METAL CHIP 2.2K 5% 1/16W R107 1-216-825-11 METAL CHIP 2.2K 5% 1/16W R108 1-216-833-11 METAL CHIP 10K 5% 1/16W R109 1-216-845-11 METAL CHIP 100K 5% 1/16W R110 1-216-845-11 METAL CHIP 100K 5% 1/16W

R111 1-216-833-11 METAL CHIP 10K 5% 1/16W R112 1-216-829-11 METAL CHIP 4.7K 5% 1/16W R113 1-216-833-11 METAL CHIP 10K 5% 1/16W R114 1-216-827-11 METAL CHIP 3.3K 5% 1/16W R115 1-216-833-11 METAL CHIP 10K 5% 1/16W

R167 1-216-833-11 METAL CHIP 10K 5% 1/16W R168 1-216-845-11 METAL CHIP 100K 5% 1/16W R169 1-216-855-11 METAL CHIP 680K 5% 1/16W R170 1-216-827-11 METAL CHIP 3.3K 5% 1/16W R171 1-216-821-11 METAL CHIP 1K 5% 1/16W

R173 1-216-821-11 METAL CHIP 1K 5% 1/16W R174 1-216-811-11 METAL CHIP 150 5% 1/16W R175 1-216-857-11 METAL CHIP 1M 5% 1/16W R176 1-216-809-11 METAL CHIP 100 5% 1/16W R179 1-216-295-91 SHORT 0

R181 1-216-841-11 METAL CHIP 47K 5% 1/16W R182 1-216-841-11 METAL CHIP 47K 5% 1/16W R183 1-216-841-11 METAL CHIP 47K 5% 1/16W R184 1-220-942-11 METAL CHIP 3.3 1% 1/4W R185 1-220-942-11 METAL CHIP 3.3 1% 1/4W

R195 1-216-833-11 METAL CHIP 10K 5% 1/16W R196 1-216-833-11 METAL CHIP 10K 5% 1/16W R197 1-216-833-11 METAL CHIP 10K 5% 1/16W R218 1-216-864-11 METAL CHIP 0 5% 1/16W

S101 1-762-596-21 SWITCH, PUSH (1 KEY) (LIMIT IN SW) S103 1-771-956-21 SWITCH, PUSH (1 KEY) (OUT SW) S104 1-771-955-21 SWITCH, PUSH (1 KEY) (PLAY SW) S105 1-771-955-21 SWITCH, PUSH (1 KEY) (REC SW)

******************************************************

Page 65

MDS-JE470

DISPLAY

Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks

A-2007-907-A DISPLAY BOARD, COMPLETE (US,CND) A-2007-911-A DISPLAY BOARD, COMPLETE (AEP,UK,HK,AUS) A-2007-915-A DISPLAY BOARD, COMPLETE (SP)

*************************

R781 1-249-401-11 CARBON 47 5% 1/4W F R782 1-247-807-31 CARBON 100 5% 1/4W

KEY-SW

MAIN

4-212-590-22 HOLDER (FL) 4-949-935-41 CUSHION (FL)

C709 1-164-159-11 CERAMIC 0.1uF 50V C751 1-124-261-00 ELECT 10uF 20% 50V C753 1-124-261-00 ELECT 10uF 20% 50V C761 1-162-294-31 CERAMIC 0.001uF 10% 50V C762 1-162-294-31 CERAMIC 0.001uF 10% 50V

C763 1-162-294-31 CERAMIC 0.001uF 10% 50V C760 1-164-159-11 CERAMIC 0.1uF 50V C764 1-164-159-11 CERAMIC 0.1uF 50V C765 1-126-153-11 ELECT 22uF 20% 6.3V C766 1-164-159-11 CERAMIC 0.1uF 50V

C767 1-162-294-31 CERAMIC 0.001uF 10% 50V C769 1-162-215-31 CERAMIC 47PF 5% 50V C781 1-124-584-00 ELECT 100uF 20% 10V C782 1-162-306-11 CERAMIC 0.01uF 30% 16V

<DIODE>

D775 8-719-046-39 DIODE SEL5821A-TP15 (MDLP)

CN701 1-779-552-21 CONNECTOR, FFC(LIF(NON-ZIF))15P CN710 1-785-712-11 CONNECTOR, BOARD TO BOARD 4P

FL750 1-517-986-11 INDICATOR TUBE, FLUORESCENT

<IC>

IC760 8-759-659-03 IC MSM9202-07GS-K IC781 8-759-826-33 IC NJL73H400A

S701 1-762-875-21 SWITCH, KEYBOARD (REC z ) S702 1-762-875-21 SWITCH, KEYBOARD (x ) S703 1-762-875-21 SWITCH, KEYBOARD ( M ) S704 1-762-875-21 SWITCH, KEYBOARD (m ) S705 1-762-875-21 SWITCH, KEYBOARD (X )

S706 1-762-875-21 SWITCH, KEYBOARD (H ) S711 1-762-875-21 SWITCH, KEYBOARD (MENU/NO) S712 1-762-875-21 SWITCH, KEYBOARD (YES) S713 1-475-235-21 ENCODER, ROTARY ( l AMS L

/PUSH ENTER)

S714 1-762-875-21 SWITCH, KEYBOARD (CLEAR)

S715 1-762-875-21 SWITCH, KEYBOARD (INPUT) S716 1-762-875-21 SWITCH, KEYBOARD (REC MODE) S721 1-762-875-21 SWITCH, KEYBOARD (EJECT A )

******************************************************

1-681-737-12 KEY-SW BOARD

************

C740 1-164-159-11 CERAMIC 0.1uF 50V

(AEP,UK,HK,SP,AUS)

CN720 1-785-713-11 CONNECTOR, BOARD TO BOARD 4P

<DIODE>

D726 8-719-046-44 LED SEL5221S-TP15 (STANDBY)

Q726 8-729-900-80 TRANSISTOR UN4211-TA

Q767 8-729-900-74 TRANSISTOR UN4216-TA Q775 8-729-900-80 TRANSISTOR UN4211-TA

R702 1-249-421-11 CARBON 2.2K 5% 1/4W F R703 1-247-843-11 CARBON 3.3K 5% 1/4W R704 1-249-425-11 CARBON 4.7K 5% 1/4W F R705 1-249-429-11 CARBON 10K 5% 1/4W R706 1-249-435-11 CARBON 33K 5% 1/4W

R712 1-249-421-11 CARBON 2.2K 5% 1/4W F R713 1-247-843-11 CARBON 3.3K 5% 1/4W R714 1-249-425-11 CARBON 4.7K 5% 1/4W F R715 1-249-429-11 CARBON 10K 5% 1/4W R716 1-249-435-11 CARBON 33K 5% 1/4W

R760 1-247-807-31 CARBON 100 5% 1/4W R761 1-247-807-31 CARBON 100 5% 1/4W R762 1-247-807-31 CARBON 100 5% 1/4W R763 1-247-807-31 CARBON 100 5% 1/4W R767 1-249-441-11 CARBON 100K 5% 1/4W

R769 1-247-843-11 CARBON 3.3K 5% 1/4W R775 1-249-409-11 CARBON 220 5% 1/4W F

R722 1-249-421-11 CARBON 2.2K 5% 1/4W F R723 1-247-843-11 CARBON 3.3K 5% 1/4W R724 1-249-425-11 CARBON 4.7K 5% 1/4W F R725 1-249-437-11 CARBON 47K 5% 1/4W R1726 1-249-409-11 CARBON 220 5% 1/4W F

S722 1-762-875-21 SWITCH, KEYBOARD (PLAY MODE) S723 1-762-875-21 SWITCH, KEYBOARD (REPEAT) S724 1-762-875-21 SWITCH, KEYBOARD (LEVEL/DISPLAY/CHAR) S726 1-762-875-21 SWITCH, KEYBOARD ( [/1)

******************************************************

A-2007-906-A MAIN BOARD, COMPLETE (US,CND) A-2007-910-A MAIN BOARD, COMPLETE (AEP,UK,HK,AUS) A-2007-914-A MAIN BOARD, COMPLETE (SP)

***********************

7-685-646-79 SCREW +BVTP 3X8 TYPE2 TT(B)

C12 1-164-159-11 CERAMIC 0.1uF 50V C16 1-164-159-11 CERAMIC 0.1uF 50V C19 1-162-294-31 CERAMIC 0.001uF 10% 50V C58 1-162-282-31 CERAMIC 100PF 10% 50V

Page 66

MDS-JE470

MAIN

Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks

C62 1-164-159-11 CERAMIC 0.1uF 50V

C520 1-126-934-11 ELECT 220uF 20% 10V

C87 1-162-306-11 CERAMIC 0.01uF 30% 16V C88 1-162-306-11 CERAMIC 0.01uF 30% 16V C89 1-162-294-31 CERAMIC 0.001uF 10% 50V C100 1-126-964-11 ELECT 10uF 20% 50V C111 1-162-290-31 CERAMIC 470PF 10% 50V

C112 1-128-551-11 ELECT 22uF 20% 25V C113 1-128-551-11 ELECT 22uF 20% 25V C161 1-137-505-11 MYLAR 220PF 5% 50V C165 1-137-503-11 MYLAR 0.0001uF 5% 50V C166 1-137-503-11 MYLAR 0.0001uF 5% 50V

C171 1-137-368-11 MYLAR 0.0047uF 5% 50V C172 1-130-471-00 MYLAR 0.001uF 5% 50V C176 1-128-551-11 ELECT 22uF 20% 25V C177 1-162-290-31 CERAMIC 470PF 10% 50V C211 1-162-290-31 CERAMIC 470PF 10% 50V

C212 1-128-551-11 ELECT 22uF 20% 25V C213 1-128-551-11 ELECT 22uF 20% 25V C261 1-137-505-11 MYLAR 220PF 5% 50V C265 1-137-503-11 MYLAR 0.0001uF 5% 50V C266 1-137-503-11 MYLAR 0.0001uF 5% 50V

C271 1-137-368-11 MYLAR 0.0047uF 5% 50V C272 1-130-471-00 MYLAR 0.001uF 5% 50V C276 1-128-551-11 ELECT 22uF 20% 25V C277 1-162-290-31 CERAMIC 470PF 10% 50V C311 1-126-933-11 ELECT 100uF 20% 16V

C522 1-164-159-11 CERAMIC 0.1uF 50V C523 1-104-665-11 ELECT 100uF 20% 10V C524 1-164-159-11 CERAMIC 0.1uF 50V C530 1-164-159-11 CERAMIC 0.1uF 50V C531 1-164-159-11 CERAMIC 0.1uF 50V

C532 1-164-159-11 CERAMIC 0.1uF 50V C536 1-164-159-11 CERAMIC 0.1uF 50V C550 1-164-159-11 CERAMIC 0.1uF 50V C551 1-104-665-11 ELECT 100uF 20% 10V C552 1-164-159-11 CERAMIC 0.1uF 50V

C553 1-162-195-31 CERAMIC 4.7PF 10% 50V C554 1-162-294-31 CERAMIC 0.001uF 10% 50V C555 1-162-201-31 CERAMIC 12PF 5% 50V C556 1-162-215-31 CERAMIC 47PF 5% 50V C557 1-162-199-31 CERAMIC 10PF 5% 50V

C601 1-162-306-11 CERAMIC 0.01uF 30% 16V C611 1-164-159-11 CERAMIC 0.1uF 50V C612 1-126-963-11 ELECT 4.7uF 20% 50V C613 1-162-306-11 CERAMIC 0.01uF 30% 16V C651 1-164-159-11 CERAMIC 0.1uF 50V

C652 1-164-159-11 CERAMIC 0.1uF 50V C657 1-164-159-11 CERAMIC 0.1uF 50V C658 1-164-159-11 CERAMIC 0.1uF 50V C800 1-164-159-11 CERAMIC 0.1uF 50V C804 1-164-159-11 CERAMIC 0.1uF 50V

C316 1-126-933-11 ELECT 100uF 20% 16V C361 1-126-933-11 ELECT 100uF 20% 16V C366 1-126-933-11 ELECT 100uF 20% 16V C401 1-126-939-11 ELECT 10000uF 20% 16V C402 1-164-159-11 CERAMIC 0.1uF 50V

C404 1-104-665-11 ELECT 100uF 20% 10V C405 1-162-306-11 CERAMIC 0.01uF 30% 16V C406 1-124-252-00 ELECT 0.33uF 20% 50V C411 1-126-939-11 ELECT 10000uF 20% 16V C412 1-164-159-11 CERAMIC 0.1uF 50V

C416 1-126-916-11 ELECT 1000uF 20% 6.3V C423 1-128-576-11 ELECT 100uF 20% 63V C424 1-164-159-11 CERAMIC 0.1uF 50V C425 1-126-967-11 ELECT 47uF 20% 50V C426 1-126-965-11 ELECT 22uF 20% 50V

C431 1-104-663-11 ELECT 33uF 20% 25V C432 1-128-551-11 ELECT 22uF 20% 25V C441 1-126-933-11 ELECT 100uF 20% 16V C442 1-162-306-11 CERAMIC 0.01uF 30% 16V C461 1-126-935-11 ELECT 470uF 20% 16V

C466 1-126-935-11 ELECT 470uF 20% 16V C490 1-126-916-11 ELECT 1000uF 20% 6.3V C491 1-164-159-11 CERAMIC 0.1uF 50V C492 1-164-159-11 CERAMIC 0.1uF 50V C500 1-126-934-11 ELECT 220uF 20% 10V

C814 1-164-159-11 CERAMIC 0.1uF 50V

CN1 1-784-417-11 CONNECTOR, FFC(LIF(NON-ZIF)23P CN2 1-779-295-11 CONNECTOR, FFC(LIF(NON-ZIF))27P

* CN3 1-794-175-11 CONNECTOR, FFC(LIF(NON-ZIF))15P

CN400 1-691-772-11 PLUG (MICRO CONNECTOR) 10P CN406 1-568-683-11 PIN, CONNECTOR (PC BAORD) 2P

<DIODE>

D111 8-719-911-19 DIODE 1SS133T-72 D112 8-719-911-19 DIODE 1SS133T-72 D211 8-719-911-19 DIODE 1SS133T-72 D212 8-719-911-19 DIODE 1SS133T-72 D381 8-719-911-19 DIODE 1SS133T-72

D382 8-719-911-19 DIODE 1SS133T-72 D401 8-719-210-21 DIODE 11EQS04-NTA2B D402 8-719-210-21 DIODE 11EQS04-NTA2B D403 8-719-210-21 DIODE 11EQS04-NTA2B D404 8-719-210-21 DIODE 11EQS04-NTA2B

D406 8-719-911-19 DIODE 1SS133T-72 D408 8-719-210-21 DIODE 11EQS04-NTA2B D409 8-719-210-21 DIODE 11EQS04-NTA2B D411 8-719-024-99 DIODE 11ES2-NTA2B D412 8-719-024-99 DIODE 11ES2-NTA2B

C501 1-164-159-11 CERAMIC 0.1uF 50V C502 1-162-302-11 CERAMIC 0.0022uF 20% 16V C503 1-162-302-11 CERAMIC 0.0022uF 20% 16V C504 1-104-665-11 ELECT 100uF 20% 10V C505 1-164-159-11 CERAMIC 0.1uF 50V

C515 1-162-282-31 CERAMIC 100PF 10% 50V C516 1-162-282-31 CERAMIC 100PF 10% 50V C517 1-162-282-31 CERAMIC 100PF 10% 50V C519 1-162-294-31 CERAMIC 0.001uF 10% 50V

D421 8-719-024-99 DIODE 11ES2-NTA2B D422 8-719-109-81 DIODE RD4.7ES-T2B2 D431 8-719-911-19 DIODE 1SS133T-72 D432 8-719-911-19 DIODE 1SS133T-72 D433 8-719-911-19 DIODE 1SS133T-72

D461 8-719-024-99 DIODE 11ES2-NTA2B D462 8-719-024-99 DIODE 11ES2-NTA2B D466 8-719-024-99 DIODE 11ES2-NTA2B D467 8-719-024-99 DIODE 11ES2-NTA2B

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MAIN

Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks

FB460 1-414-093-11 FERRITE 0UH FB465 1-414-093-11 FERRITE 0UH

<IC>

IC1 6-800-020-01 IC M30803MG-107FP IC310 8-759-634-51 IC NJM4558D IC360 8-759-634-51 IC NJM4558D IC370 8-759-634-51 IC NJM4558D IC401 8-759-445-59 IC BA033T

IC406 8-759-481-02 IC M62016L IC411 8-759-231-53 IC M5F7805L IC421 8-759-633-42 IC M5293L IC440 8-759-633-65 IC M54641L IC500 8-759-579-68 IC AK4524

IC550 8-759-591-61 IC TC7WHU04FU(TE12R) IC600 8-759-917-18 IC SN74HCU04AN IC611 8-749-012-70 IC GP1F38R

<JACK>

J300 1-784-429-11 JACK, PIN 4P (ANALOG IN/OUT) J800 1-580-394-11 CONNECTOR, DIN 6P (PC LINK)

R94 1-249-429-11 CARBON 10K 5% 1/4W R95 1-249-429-11 CARBON 10K 5% 1/4W

R97 1-249-429-11 CARBON 10K 5% 1/4W R100 1-249-441-11 CARBON 100K 5% 1/4W R111 1-249-435-11 CARBON 33K 5% 1/4W R112 1-249-431-11 CARBON 15K 5% 1/4W R113 1-247-887-00 CARBON 220K 5% 1/4W

R115 1-249-401-11 CARBON 47 5% 1/4W F R161 1-215-445-00 METAL 10K 1% 1/4W R162 1-215-445-00 METAL 10K 1% 1/4W R163 1-215-445-00 METAL 10K 1% 1/4W R164 1-215-445-00 METAL 10K 1% 1/4W

R165 1-215-453-00 METAL 22K 1% 1/4W R166 1-215-453-00 METAL 22K 1% 1/4W R171 1-215-425-00 METAL 1.5K 1% 1/4W R172 1-215-425-00 METAL 1.5K 1% 1/4W R176 1-249-415-11 CARBON 680 5% 1/4W F

R177 1-249-441-11 CARBON 100K 5% 1/4W R178 1-249-411-11 CARBON 330 5% 1/4W R181 1-249-429-11 CARBON 10K 5% 1/4W

(AEP,UK,HK,AUS) R211 1-249-435-11 CARBON 33K 5% 1/4W R212 1-249-431-11 CARBON 15K 5% 1/4W

<COIL>

L555 1-414-142-11 INDUCTOR 1uH L611 1-410-509-11 INDUCTOR 10uH L653 1-412-473-21 INDUCTOR 0uH L657 1-412-473-21 INDUCTOR 0uH L804 1-410-324-11 INDUCTOR 4.7uH

Q181 8-729-900-74 TRANSISTOR UN4216-TA Q281 8-729-900-74 TRANSISTOR UN4216-TA Q380 8-729-422-57 TRANSISTOR UN4111-TA Q440 8-729-900-80 TRANSISTOR UN4211-TA Q445 8-729-119-76 TRANSISTOR 2SA1115TP-EF

Q490 8-729-194-57 TRANSISTOR 2SC945TP-QP Q911 8-729-922-37 TRANSISTOR 2SD2144S-TP-UVW

R17 1-249-429-11 CARBON 10K 5% 1/4W

(AEP,UK,HK,AUS) R21 1-249-429-11 CARBON 10K 5% 1/4W R22 1-249-429-11 CARBON 10K 5% 1/4W R23 1-249-429-11 CARBON 10K 5% 1/4W R28 1-249-429-11 CARBON 10K 5% 1/4W

R41 1-249-441-11 CARBON 100K 5% 1/4W R44 1-249-429-11 CARBON 10K 5% 1/4W R46 1-249-429-11 CARBON 10K 5% 1/4W R49 1-249-429-11 CARBON 10K 5% 1/4W R51 1-249-429-11 CARBON 10K 5% 1/4W

R53 1-249-429-11 CARBON 10K 5% 1/4W R55 1-249-429-11 CARBON 10K 5% 1/4W R61 1-249-429-11 CARBON 10K 5% 1/4W R87 1-249-429-11 CARBON 10K 5% 1/4W R88 1-249-429-11 CARBON 10K 5% 1/4W

R90 1-249-441-11 CARBON 100K 5% 1/4W

(AEP,UK,HK,AUS) R92 1-249-429-11 CARBON 10K 5% 1/4W R93 1-249-429-11 CARBON 10K 5% 1/4W

R213 1-247-887-00 CARBON 220K 5% 1/4W R215 1-249-401-11 CARBON 47 5% 1/4W F R261 1-215-445-00 METAL 10K 1% 1/4W R262 1-215-445-00 METAL 10K 1% 1/4W R263 1-215-445-00 METAL 10K 1% 1/4W

R264 1-215-445-00 METAL 10K 1% 1/4W R265 1-215-453-00 METAL 22K 1% 1/4W R266 1-215-453-00 METAL 22K 1% 1/4W R271 1-215-425-00 METAL 1.5K 1% 1/4W R272 1-215-425-00 METAL 1.5K 1% 1/4W

R276 1-249-415-11 CARBON 680 5% 1/4W F R277 1-249-441-11 CARBON 100K 5% 1/4W R278 1-249-411-11 CARBON 330 5% 1/4W R281 1-249-429-11 CARBON 10K 5% 1/4W

(AEP,UK,HK,AUS)

R380 1-249-441-11 CARBON 100K 5% 1/4W

R381 1-247-883-00 CARBON 150K 5% 1/4W R406 1-249-409-11 CARBON 220 5% 1/4W F R407 1-249-429-11 CARBON 10K 5% 1/4W R422 1-247-881-00 CARBON 120K 5% 1/4W R423 1-249-441-11 CARBON 100K 5% 1/4W

R424 1-249-409-11 CARBON 220 5% 1/4W F R425 1-249-409-11 CARBON 220 5% 1/4W F R431 1-247-807-31 CARBON 100 5% 1/4W R432 1-249-415-11 CARBON 680 5% 1/4W F R433 1-249-411-11 CARBON 330 5% 1/4W

R434 1-249-433-11 CARBON 22K 5% 1/4W R435 1-249-438-11 CARBON 56K 5% 1/4W R436 1-247-891-00 CARBON 330K 5% 1/4W R437 1-249-417-11 CARBON 1K 5% 1/4W F R441 1-249-433-11 CARBON 22K 5% 1/4W

R442 1-249-431-11 CARBON 15K 5% 1/4W R443 1-249-433-11 CARBON 22K 5% 1/4W R491 1-249-411-11 CARBON 330 5% 1/4W R492 1-249-418-11 CARBON 1.2K 5% 1/4W F R511 1-249-401-11 CARBON 47 5% 1/4W F

R512 1-249-401-11 CARBON 47 5% 1/4W F

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MAIN

Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks

R513 1-249-401-11 CARBON 47 5% 1/4W F R514 1-249-401-11 CARBON 47 5% 1/4W F R515 1-247-807-31 CARBON 100 5% 1/4W R516 1-247-807-31 CARBON 100 5% 1/4W

R517 1-247-807-31 CARBON 100 5% 1/4W R551 1-247-903-00 CARBON 1M 5% 1/4W R552 1-249-411-11 CARBON 330 5% 1/4W R554 1-249-411-11 CARBON 330 5% 1/4W R556 1-249-411-11 CARBON 330 5% 1/4W

VOL-SEL

1-681-738-12 VOL-SEL BOARD (SP)

*************

* CN990 1-573-565-11 PIN, CONNECTOR 5P (SP)

0 S990 1-771-474-11 SWITCH, POWER (VOLTAGE SELECTOR)(SP)

******************************************************

R614 1-249-437-11 CARBON 47K 5% 1/4W R801 1-249-429-11 CARBON 10K 5% 1/4W R802 1-247-807-31 CARBON 100 5% 1/4W R805 1-249-429-11 CARBON 10K 5% 1/4W R806 1-247-807-31 CARBON 100 5% 1/4W

R807 1-249-409-11 CARBON 220 5% 1/4W F R808 1-249-409-11 CARBON 220 5% 1/4W F R851 1-249-429-11 CARBON 10K 5% 1/4W R911 1-249-421-11 CARBON 2.2K 5% 1/4W F R912 1-249-437-11 CARBON 47K 5% 1/4W

R1090 1-249-429-11 CARBON 10K 5% 1/4W

(US,CND,SP)

R1091 1-249-429-11 CARBON 10K 5% 1/4W

9 1-792-811-11 WIRE (FLAT TYPE) (23 CORE) 10 1-757-928-11 WIRE (FLAT TYPE) (27 CORE)

0 12 1-696-846-21 CORD, POWER (AUS) 0 12 1-777-071-61 CORD, POWER (AEP,UK,HK,SP) 0 12 1-783-531-31 CORD, POWER (US,CND)

* 14 1-569-972-21 SOCKET, SHORT 2P

0 17 1-569-008-21 ADAPTOR, CONVERSION (SP) 0 17 1-770-019-11 ADAPTOR, CONVERSION PLUG 3P (UK,HK)

63 1-757-930-11 WIRE (FLAT TYPE) (17 CORE) 357 1-678-514-11 PWB, FLEXIBLE

MISCELLANEOUS

*************

X15 1-795-004-21 VIBRATOR, CERAMIC (10MHz) X550 1-781-998-11 VIBRATOR, CRYSTAL (45.1584MHz)

******************************************************

1-681-734-12 PT BOARD

********

0 C910 1-113-920-11 CERAMIC 0.0022uF 20% 250V

C923 1-164-159-11 CERAMIC 0.1uF 50V C924 1-164-159-11 CERAMIC 0.1uF 50V C951 1-164-159-11 CERAMIC 0.1uF 50V C952 1-164-159-11 CERAMIC 0.1uF 50V

* CN900 1-580-230-11 PIN, CONNECTOR (PC BOARD) 2P (AC IN)

<DIODE>

D910 8-719-911-19 DIODE 1SS133T-72

0 LF900 1-419-625-11 COIL, LINE FILTER

<RELAY>

0 RY910 1-755-356-11 RELAY

0 358 A-4672-541-A OPTICAL PICK-UP KMS-260E

FL750 1-517-986-11 INDICATOR TUBE, FLUORESCENT HR901 1-500-670-11 HEAD, OVER LIGHT M101 A-4672-898-A MOTOR ASSY, SPINDLE M102 A-4735-076-A MOTOR ASSY, SLED

M103 A-4735-074-A MOTOR ASSY, LOADING S102 1-771-957-11 SWITCH, PUSH (2 KEY) (REFLECT/PROTECT SW)

0 TR900 1-435-543-11 TRANSFORMER, POWER (US,CND) 0 TR900 1-435-544-11 TRANSFORMER, POWER (AEP,UK,HK,AUS) 0 TR900 1-435-545-11 TRANSFORMER, POWER (SP)

*******************************************************

ACCESSORIES & PACKING MATERIALS

****************************

1-476-057-11 REMOTE COMMANDER (RM-D47M) 1-558-271-11 CORD, CONNECTION (AUDIO) 1-574-264-11 CORD, LIGHT PLUG (OPTICAL) 4-233-926-11 MANUAL, INSTRUCTION (ENGLISH) 4-233-926-21 MANUAL, INSTRUCTION (FRENCH)

(AEP,CND,SP)

4-233-926-31 MANUAL, INSTRUCTION (SPANISH) (AEP) 4-233-926-41 MANUAL, INSTRUCTION

(GERMAN,DUTCH,SWEDISH) (AEP)

4-233-926-51 MANUAL, INSTRUCTION (ITALIAN,POLISH)

(AEP)

4-233-926-61 MANUAL, INSTRUCTION

(TRADITIONAL CHINESE) (HK,SP)

4-981-643-11 COVER, BATTERY (FOR RM-D47M)

******************************************************

0 TR900 1-435-543-11 TRANSFORMER, POWER (US,CND) 0 TR900 1-435-544-11 TRANSFORMER, POWER (AEP,UK,HK,AUS) 0 TR900 1-435-545-11 TRANSFORMER, POWER (SP) 0 TR950 1-437-337-11 TRANSFORMER, POWER (SP) 0 TR950 1-437-335-11 TRANSFORMER, POWER (US,CND)

0 TR950 1-437-336-11 TRANSFORMER, POWER (AEP,UK,HK,AUS)

******************************************************

*************

HARDWARE LIST

*************

#1 7-685-646-79 SCREW +BVTP 3X8 TYPE2 N-S #2 7-685-850-04 SCREW +BVTT 2X3 (S) #3 7-685-204-19 SCREW +KTP 2X6 TYPE2 NON-SLIT

The components identified by mark 0 or dotted line with mark 0 are critical for safety. Replace only with part number specified.

Les composants identifiés par une marque 0 sont critiques pour la sécurité. Ne les remplacer que par une pièce portant le numéro spécifié.

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REVISION HISTORY

Clicking the version allows you to jump to the revised page. Also, clicking the version at the upper right on the revised page allows you to jump to the next revised page.

Ver. Date Description of Revision

1.0 2001.05 New

Sony MDS-S50 User Manual 2

Specifications and Main Features

Frequently Asked Questions

User Manual

SPECIFICATIONS

SERVICE NOTES

GENERAL

DISASSEMBLY

3-1. DISASSEMBLY FLOW

3-2. UPPER CASE (408226)

3-3. FRONT PANEL SECTION

3-4. MAIN BOARD

3-5. PT BOARD, VOL-SEL BOARD (SP model)

3-6. MECHANISM DECK SECTION (MDM-7A)

3-7. OVER LIGHT HEAD (HR901), BD BOARD

3-8. HOLDER ASSY

3-9. LOADING MOTOR ASSY (M103)

3-10. SLED MOTOR ASSY (M102), SLIDER

3-11. OPTICAL PICK-UP

3-12. SPINDLE MOTER ASSY (M101)

TEST MODE

ELECTRICAL ADJUSTMENTS

6-1. CIRCUIT BOARDS LOCATION

– MAIN SECTION –

6-10. SCHEMATIC DIAGRAM – DISPLAY SECTION –

6-13. IC BLOCK DIAGRAMS

6-14. IC PIN FUNCTION DESCRIPTION

7-1. CHASSIS SECTION

EXPLODED VIEWS

7-2. FRONT PANEL SECTION

ELECTRICAL PARTS LIST