Sony CDP 302 Service Manual

Page 1

SERVICE MANUAL

Photo: CDP-302ES

SPECIFICATIONS

COMPACT DISC PLAYER

System Compact disc digital audio system
DiSc Compact dise
Laser diode properties

Material: GaAlAs
Wavelength: 780 nm

Emission duration: Continuous
Laser output: Max. 0.6 mW*

*This output is the valuemeasured at a distance of about

1.6 mm from the objective lens surface on the optical pick-up .

block.

500 r.p.m. to 200 rpm. (CLV)

1.2 , 1.4 m/sec.

Sony Super Strategy Cross In
terleave Reed Solomon Code

Number of channels ~ .
2
DA conversion 16-bit linear
Frequency response
2 - 20,000 Hz :05 dB
Harmonic distortion
Less than 0.003 % (1 kHz)
More than 96 dB

Spindle speed
Scan velocity
Error correction

Dynamic range
Channel separation
More than 95 dB
SAFETY-RELATED COMPONENT WARNING

COMPONENTS IDENTIFIED BY SHADING AND 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 PUBLISHED BY SONY.

MICROFILM '

Refer to RM-D302/D502 Service Manual issued separately for
information of the remote controller supplied with this set.

GDP-302, GDP-SZOES:

USMOde/
jcpP-aoz:

,. Canadian Model
CDP-302ES:

AEP Model

UK Model

5 Model

COMPACT

USE

DIGITAL AUDIO

Below measurable limit
Line outputs
Output level 2V rms (at MSB)
Load impedance over 10_ kilohms
Headphones
28 mW at 32 ohms
Remote control connectors (Lt-pin)

Wow and flutter
Outputs

Other jacks

Disc
Track pitch 1.6 pm
Sampling frequency

44.1 kHz

Quantization
Modulation system
EFM

2. 03 Mbitlsec (before modulation)

16 bit linear quantizing/channel

Transfer rate

General
Dimensions Approx. 430 x 80 x 335 mm (wlh/d)
(17 x 3I4 X 13l4 in.)
including projecting parts and con-
trols
Weight Approx. 6.7 kg (14 lb 13 oz), net

ATTENTION Au COMPOSANT AYANT RAPPORT
A LA SECURITE!

LES COMPOSANTS IDENTIFIES PAR UNE TRAME ET
UNE MAROUE & SUR LES DIAGRAMMES SCHE-
MATIQUES ET LA LISTE DES PIECESSONTCRITIOUES
POUR LA SECURITE DE FONCTIONNEMENT. NE REM-
PLACER CES COMPOSANTS QUE PAR DES PIECES
SONY DONT LES NUMEROS SONT DONNES DANS CE
MANUEL OU DANS LES SUPPLEMENTS PUBLIES PAR

COMPACT DISK PLAYER
S ONYA
iii:

Page 2

rchssoz/aozas/szoes 3

MODEL IDENTIFICATION
eon-392

SONYa

COMPACT DISC PLAYER

MODEL NO. GDP-302

SERIAL NO.
MADE IN JAPAN

USmodel: AC: 12DV~60 Hz 15W
Canadian model: AC: 120V~60 Hz 15W

GDP-302 ES

SONYQ

COMPACT DISC PLAYER

MODEL NO. CDP-302ES

El

SERIAL NO.
MADE IN JAPAN

220 v ~ 50/60 Hz 15 w
220 v ~_50/60 Hz 15 w
240 v ~ 50/60 Hz 15 w

AC:
AC:
AC:
AC:

AEP model:
G-AEP model:
UK model:

E model:

CDP-SZOES

A

@9
l

G-AEP model

110,120, 220, 240 V ~ 50/60 Hz 15 W

SONYQ MODEL No.cop-5zoe_s

COMPACT DISC PLAYER

SERIAL NO.
MADE IN JAPAN

US model: AC: 120V~§O Hz15W

SAFETY CHECK-OUT (us Model)

After correcting the original service problem,
perform the following safety check beforereleasing
the set to the customer:

Check the antenna terminals, metal trim, metallized
knobs, screws, and all other exposed metal parts for

' AC leakage Check leakage as described below.

LEAKAGE TEST ,

The AC leakage from ,any exposed metal part to
earth ground and from all exposed metal parts to any

"exposed metal part having a return to chassis, must

not exceed 0.5 mA (500 microampers). Leakage
current can be measured by any one of three
methods. '

l. A commercial leakage tester, such as the
Simpson 229 or RCA WT~540A. Follow the
manufacturers instructions to use these instru-
ments.

2. A battery-operated AC milliammeter. The Data
Precision 245 digital multimeter is suitable for
this job.

3 Measuring the voltage drop across a resistor by
means of a VOM or battery-operated AC volt-
meterl The limit indication is 0.75 V, so
analog meters must have an accurate low-
voltage scale. The Simpson 250 and Sanwa'
SH-63Trd are examples.of a passive VOM that
is suitable. Nearly all battery operated digital
multimeters that have :1 2V AC range are
snitable. (See Fig. A)

To Exposed Metal
Parts an Set

0.151.: I 1.5kfl

A C
voltmeter
(0.75 V)

/
__J

Earth Ground

Fig. A

Using an AC voltmeter to check AC leakage.