Sony CDP 222 ESD Service Manual

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SERVICE MANUAL

(PHOTQ:

C DP-222 ESDI

GDP-222580:

AEP Model
UK Model
E Model

CDP-505ESD:

US Model
Canadian Model

GDP-910:

US Model

SPECIFICATIONS

System Compact disc digital audio system
Disc Compact disc

Laser Semiconductor laser (A = 780 nm)
Laser output Max. 446 yW

* This output is the value measured at a distance of
about 200 mm from the objective lens surlace on the
Optical Pick-up Block.
Spindle speed 200 rpm to 500 rpm (CLV)
Scan velocity 12-14 mlsect
Error correction Sony Super Strategy Cross lnterleave Reed
Solomon Code

Number of channel
. Two

D/A conversion 16bit linear
Frequency response

2 - 20,000 HZ :05 dB
Slgnal-to-noise ratio

More than 102 dB
Dynamic range More than 95 dB
Harmon ic distortion

Less than 0.006% (1 kHz)
Channel separation

More than 98 dB (1 kHz)
Wow and flutter Below measurable llmit
Output jacks
Max. output Load Output
ievei impedance impedance
LINE OUT 2 V More than -
(50 k9) 10 k9
DIGITAL 0.5Vp-p 759 759
OUT (75 9)
HEAD- 28 mW 32 Q --
PHONES Variable, max

*DIGITAL OUT: CDP-222ESD, CDP-SOSESD

MICROFILM

General
Power requirements
CDP»222ESD: AEP model
220V AC 50/60Hz
UK model
240V AC SOHZ
E model

120, 220 or 240V AC adjustable, 50/60Hz

CDP<505ESD, GDP-910:

1 20 V AC 60 Hz
Power consumption

15W

Dimensions Approx. 430 x 100 x 335 mm (wlh/dl
(17 x 4 x 131/. inches)
Weight Approx. 5.3 kg (11 lb 11 oz), net

SAFETY-RELATED COMPONENT WARNINGI!

COMPONENTS IDENTIFIED BY SHADING AND MARK

& ON THE SCHEMATIC DIAGRAMS AND IN THE
PARTS LIST ARE CRITICAL T0 SAFE OPERATION.
REPLACE THESE COMPONENTS WITH SONV PARTS
WHOSE PART NUMBERS APPEAR AS SHOWN IN THIS
MANUAL OR IN SUPPLEMENTS PUBLISHED BY SONV.

ATTENTION Au COMPOSANT AYANT RAPPORT
A LA SECURITE!

LEs COMPOSANTS IDENTIFIES PAR uNE TRAME ET
UNE MAROUE A sun LES DIAGRAMMES SCI-IE-
MATIoUEs ET LA LISTE DES PIECES SONTCRITIQUES
POUR LA SECURITE DE FONCTIONNEMENT. NE REM-
PLACER ces COMPOSANTS ouE PAR DES PIECES
SONY DONT LES NUMERos SONT DONNES DANS ce
MANUEL ou DANS LES SUPPLEMENTS PUBLIEs PAR
SONY.

CliMPACT nlsc PLAYER
SONY;

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CONTENTS

Section Title Page
SPECIFICATIONS ..................... 1
GENERAL DESCRIPTION ............... 2
SAFETY CHECK-OUT (US model) ......... 2
PROTECTION OF EYES FROM LASER BEAM
DURING SERVICING ................. 3
LASER WARNING LABEL .............. 3
TROUBLE CHECKS ................... 4
NOTES ON HANDLING THE OPTICAL
BLOCK (KSS-lSiA) ................... 5
LOCATION OF CONTROLS ........... 7-8
SECTIONI DISASSEMBLY ........... 9*]0
SECTION2 ADJUSTMENTS .......... 11-13
e SEMICONDUCTOR LEAD LAYOUTS . . . . l4
0 CIRCUIT BOARD LAYOUT .......... 14
SECTION3 DIAGRAM

3-1. MOUNTING DIAGRAM ........ 15718

3-2. SCHEMATIC DIAGRAM ....... 19-21
SECTION4 EXPLODED VIEWS AND PARTS

LIST .................. 23-27
SECTION 5 ELECTRICAL PARTS
LIST .................. 28-32

GENERAL DESCRIPTION

Dlrect selection
You can play a desired selection simply by pressing the
corresponding numeric button (1-20).

Program play
You can play up to 20 selections in the desired order.
Selections can be programmed even after play begins.

Variety of playing modes
Disc, program, shuffle and repeat playing modes.

Large and sasy-to-read window display

Shows the elapsed playing time, the remaining time of the
selection being played, the remaining time of the whole disc
or remaining programmed selection numbers.

SAFETY CHECK-OUT (US Model)

After correcting the original service problem,
perform the following safety check before releasing
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.

1. 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 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-
meter 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 a 2 V AC range are
suitable. (See Fig. A)

To Exposed Metal
Part: on Set

/ AC
voltmeter

0.15M '[ g 1.5m
, (0.75 w
._l

T Earth Ground

Fig. A. Using an AC voltmeter to check AC leakage.

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