Yamaha MDX-E100.pdf

MDX-E100

MINIDISC RECORDER

SERVICE MANUAL

For the system operation of MDX-E100,

please refer to Service Manual for the

RX-E100 100684 .

IMPORTANT NOTICE

This manual has been provided for the use of authorized YAMAHA Retailers and their service personnel.

It has been assumed that basic service procedures inherant to the industry, and more specifically YAMAHA Products, are already

known and understood by the users, and have therefore not been restated.

WARNING: Failure to follow appropriate service and safety procedures when servicing this product may result in personal

injury, destruction of expensive components and failure of the product to perform as specified. For these reasons,

we advise all YAMAHA product owners that all service required should be performed by an authorized

YAMAHA Retailer or the appointed service representative.

IMPORTANT: The presentation or sale of this manual to any individual or firm does not constitute authorization, certification or

recognition of any applicable technical capabilities, or establish a principle-agent relationship of any form.

The data provided is believed to be accurate and applicable to the unit(s) indicated on the cover. The research, engineering, and

service departments of YAMAHA are continually striving to improve YAMAHA products. Modifications are, therefore, inevitable

and specifications are subject to change without notice or obligation to retrofit. Should any discrepancy appear to exist, please contact

the distributor's Service Division.

WARNING: Static discharges can destroy expensive components. Discharge any static electricity your body may have accumu-

lated by grounding yourself to the ground buss in the unit (heavy gauge black wires connect to this buss).

IMPORTANT: Turn the unit OFF during disassembly and parts replacement. Recheck all work before you apply power to the unit.

CONTENTS

TO SERVICE PERSONNEL . . . . . . . . . . . . . . . . . . 1-2

REAR PANELS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

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

INTERNAL VIEW . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

DISASSEMBLY PROCEDURES . . . . . . . . . . . . . . . 4-8

ADJUSTMENT & TEST MODE . . . . . . . . . . . . . . . 9-16

SPECIAL TEST MODE . . . . . . . . . . . . . . . . . . . . . . . 17

ERROR DISPLAY . . . . . . . . . . . . . . . . . . . . . . . . 18-19

TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . 20-24

IC DATA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25-34

BLOCK DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . 35-37

TEST POINT WAVEFORMS . . . . . . . . . . . . . . . . 38-39

PRINTED CIRCUIT BOARD . . . . . . . . . . . . . . . . 40-47

SCHEMATIC DIAGRAM . . . . . . . . . . . . . . . . . . . 48-50

PARTS LIST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51-63

GREASE APPLICATION DIAGRAM . . . . . . . . . . . . 64

REMOTE CONTROL TRANSMITTER . . . . . . . . . . . 65

100686

MDX-E100

TO SERVICE PERSONNEL

Critical Components Information.

Components having special characteristics are marked Z

and must be replaced with parts having specifications equal

to those originally installed.

WALL

OUTLET

EQUIPMENT

UNDER TEST

AC LEAKAGE

TESTER OR

EQUIVALENT

INSULATING

TABLE

CAUTION: USE OF CONTROLS OR ADJUSTMENTS

OR PERFORMANCE OF PROCEDURES

OTHER THAN THOSE SPECIFIED

HEREIN MAY RESULT IN HAZARDOUS

RADIATION EXPOSURE.

Laser Diode Properties

Material:

GaAIAs

Wavelength:

785 nm

Pulse time:

Read mode ...0.6 mW Continuous

Write mode ...max 10 mW 0.5S

min cycle 1.5S

Repetition

THE MINI DISC RECORDER SHOULD NOT BE

ADJUSTED OR REPAIRED BY ANYONE EXCEPT

PROPERLY QUALIFIED SERVICE PERSONNEL.

R, G, B models

English

THIS PRINTING (SEE POSITION SHOWN IN THE ILLUSTRATION) INFORMS THE USER THAT THE APPARATUS

CONTAINS A LASER COMPONENT.

THIS LABEL (SEE POSITION SHOWN IN THE ILLUSTRATION) WARNS THAT ANY FURTHER PROCEDURE WILL

BRING THE USER INTO EXPOSURE WITH THE LASER BEAM.

CAUTION : USE OF CONTROLS, ADJUSTMENTS OR PERFORMANCE OF PROCEDURES OTHER THAN THOSE

SPECIFIED HEREIN, MAY RESULT IN HAZARDOUS RADIATION EXPOSURE.

Swedish

DENNA MÄRKNING (SE FIGUR) UPPLYSER OM ATT DET I APPARATEN INGÅR EN LASERKOMPONENT AV

TYP KLASS 1.

VARNINGSMÄRKNING (SE FIGUR) FÖR STRÅLNING. INGREPP I APPARATEN BÖR ENDAST FÖRETAGAS AV

FACKMAN MED KÅNNEDOM OM LASER. APPARATEN INNEHÄLLER EN LASERKOMPONENT SOM AVGER

STRÅLNING ÖVERSTIGANDE GRÄNSEN FÖR LASERKLASS 1.

VARNING : OSYNLIG LASERSTRÅLNING NÄR DENNA DEL ÄR ÖPPNAD OCH SPÄRREN ÄR URKOPPLAD.

STIRRA EJ I STRÅLEN OCH BETRAKTA EJ STRÅLEN GENOM OPTISKT INSTRUMENT.

MDX-E100

Danish

DETTE MÆRKAT ER ANBRAGT SOM VIST I ILLUSTRATIONEN FOR AT ADVARE BRUGEREN OM AT AP-

PARATET INDEHOLDER EN LASERKOMPONENT.

DETTE MÆRKAT OM LASEREN ER ANBRAGT PÅ APPARATET SOM EN OPLYSNING OM AT APPARATET

INDEHOLDER ET LASERKOMPONENT.

ADVARSEL : USYNLIG LASERSTRÅLING VED ÅBNING, NÅR SIKKERHEDSAFBRYDERE ER UDE AF FUNKTION.

SE IKKE IND I STRÅLEN-HELLER IKKE MED OPTISKE INSTRUMENTER.

ADVARSEL : USYNLIG LASERSTRÅLING NÅR DEKSEL ÅPNES OG SIKKERHEDSLÄS BRYTES. STIRR IKKE INN I

STRÅLEN ELLER SE DIREKTE MED OPTISKE INSTRUMENTER.

Finnish

VARO! :

AVATTAESSA JA SUOJALUKITUS OHITETTAESSA OLET ALTTIINA NÄKYMÄTTÖMÄLLE LASER-SÄTEILYLLE.

ÄLÄ TUIJOTA SÄTEESEEN ÄLÄKÄ KATSO SITÄ OPTISEN LAITTEEN LÄPI.

REAR PANELS

A model

R model

240V

B model

G model

MDX-E100

SPECIFICATIONS

Digital audio system

Outputs

System

MiniDisc digital audio system

Disc

MiniDisc

Recording method

Magnetic field variation overwrite

Reading method

Non-contact optical pickup (using semiconductor laser)

Laser

Semiconductor laser

Laser Diode Properties

Material: GaAIAs

Wavelength: 785 nm

Pulse time:

Read mode ... 0.6 mW Continuous

Write mode ... max 10 mW 0.5S

min cycle 1.5S

Repetition

Record/playback time

Max. 74 minutes

74 minutes (stereo)

148 minutes (mono)

Revolutions

Approx. 400-900 rpm (CLV)

Error Correction

ACIRC (Advanced Cross Interleave Reed-solomon Code)

Sampling frequency

44.1 kHz (32 kHz and 48 kHz signals converted to 44.1 kHz

for recording)

Coding

ATRAC (Adaptive TRansform Acoustic Coding)

Modulation system

EFM (Eight-to-Fourteen Modulation)

Number of channels

2 (stereo) or 1 (mono, for extended recording)

Frequency Response

5 - 20,000 Hz

LINE OUT (PLAY)

Type: pin jack

Standard output level: 2.0

0.5 Vrms

DIGITAL OUT (OPTICAL)

Type: square optical connector jack

GENERAL

Power Supplies

A model 240 V, 50 Hz

G, B models 230 V, 50 Hz

R model 110/120/220/240 V, 50/60 Hz

Power Consumption

16 W

Dimensions (W x H x D)

217 x 88 x 298 mm (8-9/16" x 3-7/16" x 11-3/4")

Weight

3.0 kg (6 lbs. 9 oz.)

Accessories

Remote Control .... 1

Audio cord... 2

Optical cord... 1

Batteries (size AA, R6, UM-3).... 2

Specifications subject to change without notice.

A : Australian model

B : British model

G : European model

R : Genaral model

0.5 dB

Signal-to-Noise Ratio

More than 99 dB during playback

Wow and Flutter

Below measurable limit

Inputs

LINE IN (REC)

Type: pin jack

Input impedance: greater than 50 k-ohms

Standard input level: 300 mV

DIGITAL IN (OPTICAL) 1/2

Type: square optical connector jack

217(8-9/16")

Units : mm (inch)

MDX-E100

INTERNAL VIEW

POWER TRANSFORMER

P.C.B. DIGITAL

P.C.B. MAIN (1)

P.C.B. MAIN (2)

MD MECHANISM UNIT

CB102

CB107

CB101

DISASSEMBLY PROCEDURES

(Remove parts in disassembly order as numbered.)

1. Removal of Top Cover

a. Remove 4 screws ( q

) and 4 screw ( w

) in Fig. 1.

3. Removal of MD Mechanism Unit

a. Remove 1 connector.

CB102

b. Remove 4 screws ( t ) in Fig. 1.

c. Remove 4 screws ( y ) in Fig. 2.

d. Remove 2 screws ( u ) in Fig. 2.

e. Remove 2 screws ( i ) in Fig. 2.

2. Removal of Front Panel

a. Remove 2 connectors.

CB101, CB107

b. Remove 2 screws ( e ) and 2 screws ( r ) in Fig. 1.

Top Cover

Shield Case (Top)

MD Mechanism Unit

(Bind Head S-tite)

MD Mechanism Unit

Shield Case (Bottom)

(Bind Head B-tite)

Front Panel

Frame (Mechanism)

Fig. 1

Fig. 2

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