Sony CDP C425 Service Manual

Page 1

EDP-C425

SERVICE MANUAL

US Model
Canadian Model
AEP Model
UK Model

E Model

coroner

mmuL warn

System
Laser

Laser output

Frequency response
Signal to noise ratio
Dynamic range
Harmonic distortion
Channel separation
Wow and flutter
Outputs

General
Power requirements

Model Name Using Similar Mechanism GDP-0312M
BU~SBDBB

Optical Piclcup Block Type

SPECIFICATIONS

Compact disc digital audio system
Semiconductor laser 0:780 nm)
Emission duration: continuous
Max. 443 aw-

This output is the value
measured at a distance of
about 200 mm from the
objective lens surface on the
Optical Pickup Block.

2 Hz - 20 kHz (:05 dB)

More than 100 dB

More than 93 dB

Less than 0005% (1 kHz)

More than 100 dB (1 kHz)

Below measurable limit

LlNE OUT (phone jacks)

Output level 2 V (at 50 kilohms)
Load impedance over 10
kilohms

PHONES (stereo phone jack)
Output level 0 - 10 mW
(variable) (at 32 ohms)

US, Canadian Model:
120 V AC, 60Hz
AEP Model:
220-230 V AC, 50/60Hz
UK Model:
240 V AC, 50/60Hz
E Model:
110-120, 220-240 V AC, 50/60HZ

Power consumption 12 W

Dimensions Approx, 430 X 125 X 385 mm
(w/hld) (17 X 5 X 15/4 inches)
including projecting parts and
controls

Weight Approx. 56 kg (12 lbs 6 oz), net

Remote commander RM-D325

Remote control system Infrared control

Power requirements 3 V DC with two batteries size AA
(lEC designation R6)

Supplied accessories
Audio signal connecting cord
(phono plug X 2 e» phonc plug x 2) (1)
Remote commander (1)
Sony SUM.3 (NS) batteries (2)
Operating Manual (1)

Design and specifications subject to change without
notice

COMPACT msc PLAYER
SONY;

Page 2

GDP-c425

Note on the Transit ey

The transit key on the bottom exterior of the unit protects
the optical system against shock during transportation
Before operating the CD player. he sure to remove the key
by following the instructions on the label, and store it in a
safe place.

When transporting the unit, replace the key in its original
hole and lock it in place.

For the customers In Canada
-- CAUTION:

TO PREVENT ELECTRIC SHOCK. DO NOT USE THIS
POLARIZED AC PLUG WITH AN EXTENSION CORD,
RECEPTACLE OR OTHER OUTLET UNLESS THE
BLADES CAN BE FULLY INSERTED TO PREVENT
BLADE EXPOSURE.

THIS APPARATUS COMPLIESS WITH THE CLASS B
LIMITS FOR RADIO NOISE EMISSIONS SET OUT IN
RADIO INTERFERENCE REGULATIONS.

TABLE OF CONTENTS
Section Tile Page Section Egg Page
1 , GENERAL 5. EXPLODED VIEWS
1.1. Location of Controls ....................................................... 5 5.1. Front Panel and Case Assembliu ....................................... 21
5-2. Disc Tray Assembly
2. DISASSEMBLY 5-3i Chassis Assembly ~
2-1. Removal of Front Panel and Case Assemblies ~~~~~~~~~~~~~~~~~~~~~~~~~ 6 5-4. Optical Pick-up Block Assembly (BU-SBD88) ----------------------- Z4
2<2. Removal of Disc Tray Assembly ---------------
2-3l Removal of Optical Pick-up Block Assembly 6. ELECTRICAL PARTS LIST ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 25
3_ ELECTRICAL BLOCK CHECKING ........................... 7
4. DIAGRAMS
4-]. Circuit Boards Location
4-2. Semiconductor Lead Layouts'
4.3 [C BIOCk Diagrams ........................................................ 10
4-4 Printed Wiring Boards
4-5. Schematic Diagram '-

SAFETY-RE LATED COMPONENT WARNING! I

COMPONENTS IDENTIFIED BY MARK A OR DOTTED
LINE WITH MARK & 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 AYANT RAPPORT
A LA secumTé!

LES COMPOSANTS IDENTIFIES PAR one MARQUE A
sun Les DIAGRAMMES SCHEMATIOUES ET LA LISTE
oes Pieces SONT camoues POUR LA secumTe
DE FONCTIONNEMENT. ms REMPLACER ces com-
POSANTS oue PAR DES nieces souv DONT Les
NUMEROS SONT DoNNes DANS ce MANUEL ou
DANS Les SUPPLEMENTS PUBLIES PAR SONY.