Yamaha MDX-E100.pdf
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MDX595E00-35
MDX-E100
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
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.
1
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
2
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)
3
MDX-E100
INTERNAL VIEW
q
POWER TRANSFORMER
q
w
e
r
w
P.C.B. DIGITAL
e
P.C.B. MAIN (1)
r
P.C.B. MAIN (2)
r
MD MECHANISM UNIT
CB102
CB107
CB101
t
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
w
i
Shield Case (Top)
q
w
MD Mechanism Unit
(Bind Head S-tite)
t
i
MD Mechanism Unit
q
u
e
Shield Case (Bottom)
y
u
t
(Bind Head B-tite)
e
r
Front Panel
y
Frame (Mechanism)
Fig. 1
Fig. 2
4
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Mirek725
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