Sony cdp 991 service manual

Page 1

EDP-991

SERVICE MANUAL us Model

Canadian Model
AEP Model

UK Model

E Model

.1 .. Austral/an Model

Model Name Using Similar Mechanism CDP- 391
CD Mechanism Name COMM-5301
Base Unit Name BU-SBD1
SPECIFICATIONS
Compact dlsc player Remote commander
Fvequency response 2 Hz ~20 kHz 20.3 as Remole oonrlol Inlralecl conuol
Signal lo noise ralio More lhan I Is as 3"
. Power a v DC wnn lwo oalIeries size AA
Ws ""9" M "3" "0 °E quuiremems llec designalion R6)
Harmonlc alslonlon Less man 0 002594, 03mm, sleax 75 mm lw/h/dl
Channel sepalalion More man 105 as (2 View/xv .ncnesl
Weight 130 g (4.6 oz)
Including ballelies
Outputs
LINE OUT Oulpur level 2v lal so kiloohms) s A .
(FIXED) Load Impedance over 10 kIIoohms Implied flwessones
(phona Jacks) Counseling cord 1
LINE OUT olnpur level max. 2v (al so klloohms) (2 phone plugs ~ 2 phono plugs)
(VARIABLE) Load Impedance over 50 kllophms new |
m 8) commander
DIGITAL OUT Wave lengln 660 nm
(OPTICAL) (opIical olnpul level -13 dam 3365. M) 2
enes
oulput connector)

HEADPHONES Oulpul level max 28 mw

(Slereo phone Load Impedance 32 ohms

' k

m ) Des-9n and specilicmilms subjecl to change wrlnoul mllce.
General

Power AEP MODEL

requirements 220 - 230 V AC, 50/60 Hz

UK. Australian MODEL
240 V Ac. 50/60 Hz
US. Canadian MODEL
120 V AC, 60 Hz
E MODEL
llo- lzoolzzo-zeovnc
adluslable. 50/60 Hz

Power 17 W

consumption

Dimensions 430x! on340 mm (wlh/d)
(approx.. including (17x4 /.>< l 3 5/5 Inches)
plo}ec!lons)

welghl (approx) 4 5 kg (9 lbs 15 oz)

COMPACT DISC PLAYER

SONY;

Page 2

I
GDP-991

TABLE OF CONTENTS

Section Title Page
Specifications ........................................ 1
Servicing note ....................................... 2
1, GENERAL ......................................... 4
2. ELECTRICAL BLOCK CHECKING ----------------- 6
3, DISASSEMBLY .................................... 8
4. DIAGRAMS
4- 1. Description in IClOl (CXA1372Q) ~~~~~~~~~~ 9
4-2, Block Diagram ............................. 11
4-3. Printed Wiring BoardA - 14
4-4. Schematic Diagram .......................... 17
1c Block Diagram ........................... 21
5 EXPLODED VIEWS ............................... 23
6. ELECTRICAL PARTS LIST --------------------- 27
MODEL IDENTIFICATION
- Specification Labels -

GDP-991
I

- SERVICING NOTE -

LASER DIODE AND FOCUS SEARCH OPERATION
CHECK

1. Turn POWER switch on with no disc inserted and
disc table closed.

2. Confirm that the operation indicated in Fig A is
performed while observing the objective lens.

FRONT PANEL

(D Confirm that laser beam is spread.

@ Up and down motion 0/ the objective
lens. {.3 times}

Fig. A

SAFETY-RELATED COMPONENT WARNING

SONYo MODEL Nam

COMPACT DISC PLAYER

SERIAL NO.
MADE IN JAPAN

COMPONENTS IDENTIFIED BY MARK A 0R 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 COMPOSANT AVANT RAPPORT
A LA secuané:

LES COMPOSANTS IDENTIFIES PAR UNE MAROUE A
SUR LES DIAGRAMMES SCHEMATIOUES ET LA LISTE

I

US, Canadian Models: AC: 120V 60Hz 17W

DES PIECES SONT cmnouEs POUR LA sécumTé
DE FONCTIONNEMENT. NE REMPLACER css com-
POSANTS ous PAR oss PIECES so~v DONT LES

AEP Model: AC: 220V-230V [L 50/60Hz 17W NUMEROS SONT DONNES DANS CE MANUEL 00

UK, Australian Models: AC: 240V r\J 50/60Hz 17W
E ModeI: AC: 110 ~ 120, 220 - 240V
u 50/60Hz 17w

DANS LES SUPPLEMENTS PUBLIES PAR SONY.