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PDF MDS-JA20ES Data sheet ( Hoja de datos )
| Número de pieza | MDS-JA20ES | |
| Descripción | MINIDISC DECK SERVICE MANUAL | |
| Fabricantes | Sony | |
| Logotipo |  |
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SERVICE MANUAL
MDS-JA20ES
US Model
Canadian Model
AEP Model
UK Model
Photo: GOLD Type
U.S. and foreign patents licensed form Dolby Laboratories
Licensing Corporation.
Model Name Using Similar Mechanism
MD Mechanism Type
Base Unit Name
Optical Pick-up Name
NEW
MDM-6A
MBU-5C
KMS-260A/J1N
System
Disc
Laser
Laser output
Laser diode properties
Revolutions (CLV)
Error correction
Sampling frequency
Coding
Modulation system
Number of channels
Frequency response
Signal-to-noise ratio
Wow and f lutter
SPECIFICATIONS
MiniDisc digital audio system
MiniDisc
Semiconductor laser ( λ=780nm)
Emission duration: continuous
Less than 44.6 µW*
* 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.
Material: GaAIAs
400 rpm to 900 rpm
Advanced Cross Interleave Reed
Solomon Code (ACIRC)
44.1 kHz
Adaptive Transform Acoustic Coding
(ATRAC)
EFM (Eight-to-Fourteen Modulation)
2 stereo channels
5 to 20,000 Hz ±0.3 dB
Over 102 dB during playback
Below measurable limit
Inputs
Jack Input
Rated
Minimum
type impedance input
input
LINE (ANALOG) Phono
IN jacks
47 kilohms 500 mVrms 125 mVrms
DIGITAL IN
OPT 1
Square
optical
connector
jack
Optical wave
length:
660 nm
—
—
DIGITAL IN
OPT 2
Square
optical
connector
jack
Optical wave
length:
660 nm
—
—
DIGITAL IN
COAXIAL
Phono
jack
75 ohms
0.5 Vp-p,
±20%
—
Outputs
PHONES
Jack type
Stereo
phone jack
Rated output
28 mW
Load impedance
32 ohms
LINE (ANALOG) Phono
OUT
jacks
2 Vrms
Over
(at 50 kilohms) 10 kilohms
DIGITAL OUT
OPTICAL
Square
optical
connector
jack
–18 dBm
Optical wave
length:
660 nm
DIGITAL OUT Phono
COAXIAL
jack
0.5 Vp-p
(at 75 ohms)
75 ohms
– Coutinued on next page –
MINIDISC DECK
MICROFILM
http://www.Datasheet4U.com
1 page  
CAUTION
Danger of explosion if battery is incorrectly replaced.
Replace only with the same or equivalent type recommended by
the manufacturer.
Discard used ba tteries accor ding to the manuf acturer’s instruc-
tions.
ADVARSEL!
Lithiumbatteri-Eksplosionsfare ved fejlagtig håndtering.
Udskiftning må kun ske med batteri
af samme fabrikat og type.
Levér det brugte batteri tilbage til leverandøren.
ADVARSEL
Eksplosjonsfare ved feilaktig skifte av batteri.
Benytt samme batteritype eller en tilsvarende type
anbefalt av apparatfabrikanten.
Brukte batterier kasseres i henhold til fabrikantens
instruksjoner.
VARNING
Explosionsfara vid felaktigt batteribyte.
Använd samma batterityp eller en likvärdig typ som
rekommenderas av apparattillverkaren.
Kassera använt batteri enligt gällande föreskr ifter.
VAROITUS
Paristo voi räjähtää, jos se on virheellisesti asennettu.
Vaihda paristo ainoastaan laitevalmistajan suosittelemaan tyyppiin.
Hävitä käytetty paristo valmistajan ohjeiden mukaisesti.
Laser component in this product is capable of emitting radia-
tion exceeding the limit for Class 1.
This appliance is classified as
a CLASS 1 LASER product.
The CLASS 1 LASER PROD-
UCT MARKING is located on
the rear exterior.
This caution
label is located
inside the unit.
CAUTION
Use of controls or adjustments or performance of procedures
other than those specified herein may result in hazardous ra-
diation exposure.
Flexible Circuit Board Repairing
• Keep the temperature of the soldering iron around 270 ˚C dur -
ing 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.
Notes on chip component replacement
• Never reuse a disconnected chip component.
• Notice that the minus side of a tantalum capacitor may be dam-
aged by heat.
SAFETY-RELATED COMPONENT WARNING!!
COMPONENTS IDENTIFIED BY MARK ! OR DOTTED
LINE WITH MARK ! ON THE SCHEMATIC DIAGRAMS
AND IN THE P ARTS LIST ARE CRITICAL TO SAFE
OPERATION. REPLA CE THESE COMPONENTS WITH
SONY PARTS WHOSE PART NUMBERS APPEAR AS
SHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUB-
LISHED BY SONY.
ATTENTION AU COMPOSANT AYANT RAPPORT
À LA SÉCURITÉ!
LES COMPOSANTS IDENTIFIÉS PAR UNE MARQUE !
SUR LES DIAGRAMMES SCHÉMATIQUES ET LA LISTE
DES PIÈCES SONT CRITIQ UES POUR LA SÉCURITÉ
DE FONCTIONNEMENT . NE REMPLA CER CES COM-
POSANTS Q UE PAR DES PIÈCES SONY DONT LES
NUMÉROS SONT DONNÉS D ANS CE MANUEL OU
DANS LES SUPPLÉMENTS PUBLIÉS P AR SONY.
–5–
5 Page 
Reading the Retry Cause Display
Higher Bits Lower Bits Hexa-
Hexadecimal 8 4 2 1 8 4 2 1 decimal
Bit b7 b6 b5 b4 b3 b2 b1 b0
Binary 0 0 0 0 0 0 0 1 01
0 0 0 0 0 0 1 0 02
0 0 0 0 0 1 0 0 04
0 0 0 0 1 0 0 0 08
0 0 0 1 0 0 0 0 10
0 0 1 0 0 0 0 0 20
0 1 0 0 0 0 0 0 40
1 0 0 0 0 0 0 0 80
Details
When 0
Emphasis OFF
Monaural
This is 2-bit displa y. Normally 01.
01:Normal audio. Others:Invalid
Audio (Normal)
Original
Copyright
Write prohibited
When 1
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 n b7
Lower bit : 4 = 0100 n 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 n All 0
Lower bit : 7 = 0111 n 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 n Binary Conversion Table
Hexadecimal
0
1
2
3
4
5
6
7
Binary
0000
0001
0010
0011
0100
0101
0110
0111
Hexadecimal
8
9
A
B
C
D
E
F
Binary
1000
1001
1010
1011
1100
1101
1110
1111
– 11 –
11 Page | ||
| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet MDS-JA20ES.PDF ] | |
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