Sony d 20 service manual

Page 1

US Model
Canadian Model
D-2

AEP Model

UK Model

E Model
Australian Model

0-20

Discman

CD section
System
Laser diode properties

Frequency response
Output (at 9V Input level)

General
Power requirements

Power consumption
Dimension

Weight

Supplied accessories

SPECIFICATIONS

Compact disc digital audio system
Material: GaAlAs
Wavelength: 780nm
Emission duration: Continuous
Laser output: Less than MIBMW
(This output is the value measured at a distance of 200mm
from the objective lens surface on the Optical Pickup
Blocki)
20-20000 H21; (18
Line output (stereo minijaok)
Output level 1V rms at 47kilohms
Load impedance over 10kilohms
Headphones (stereo minijaok)
9mW+9mW at 320hms

Optional

- DC IN 9V jack accepts the Sony AC power adaptor (supplied)

- DC IN 9V accepts the Sony CPM-iooP mount plate (or use
on 12V car battery

DC 6V. four size AA (LRG) alkaline batteries

1.2W DC

Approxr 136x38x149 mm (53/,X1/,><6in,) (wll'ild)

incl. projecting parts and controls

Approx, 450 g (1 lb) net

Approx. 5459 (1 lb 302) Incl. batteries

Connecting cord (1)

Carrying belt (1)

AC power adaptor (1 )

CAUTION

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

CflMPAIIT DISC
llIlMPACT PLAYER

SONYr

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TABLE OF CONTENTS

Section Title Egg;
Specifications ......... ................. . ............. 1
1. GENERAL ......... ......... ................. 2
2. SERVICING~~~~ .......... .......... ........... ..3
3, ELECTRICAL ADJUSTMENTS-mun" ............ ...6
4 DIAGRAMS

4-1. Semiconductor Lead Layouts~~~~~~~~ ----- 11

4-2. Printed Wiring Boards-"mm ........... .....12

Section Title P_ag_e_
4-3. Schematic Diagramn-nm ---------- ........ 15
4.4_ Wave forms ................................. ..... 18
4.5 10 Block Diagram" .......... ............ ....19
4.5. LCD Module ....... ........... 20

5. EXPLODED VIEWS..4.... ............... . ............. ""21

6, ELECTRICAL PARTS LIST ........ ............ ...24

SUPPLEMENT-1

SUPPLEMENT-2

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SECTION 1
GENERAL

LENS
The lasei beam Is emitted from this 90m!
to ptckvup signal on the disc.

Battery compartment lid

Display window
(stereo mimjack)
PLAY MODE button
>II (playmauso) button
VOLUME control

(m headphones listening)

KEY MODE button

Connect the Optional
remote control unItL

(stereo minijack)

Dc IN 9V (extanal power
input) Mk

AMS is an abbreviation lor Automatic Music Sensol,

ooflw -- . T»-¢ -oodw ~0- u»-- o No4 ow- - w- w o--w»-4u ' L- Ht - - o W -m o--w-w --- up- my- -o- m»- m ...w .w o»-w -.w -o- wow --- ,- w- o

SAFETY-RELATED COMPONENT WARNINGI!

COMPONENTS IDENTIFIED BY MARK & OR DOTTED
LINE WITH MARK A 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 PUB-
LISHED BY SONY.

ATTENTION AU COMPQSANT AVANT RAPPORT
A LA SECURITE!

LEs COMPOSANTS mENTIPIEs PAR UNE MAROUE A
SUR LEs DIAGRAMMES SCHEMATIOUES ET LA LISTE
DES PIEcEs SONT CRITIQUES POUR LA sécumTE
DE FONcTIONNEMENT. NE REMPLACER CES com-
POSANTS QUE PAR pas PIECES SONY DONT LES
NUMéRos SONT DONNES DANS CE MANUEL ou
DANS LEs SUPPLEMENTS PUBLIEs PAR SONY.