Sony CDP 338 ESD CDP 608 ESD Service Manual

Page 1

US Model
Canadian Model

CDP-608ESD

AEP Model
UK Model
E Model

CDP-338ESD
This photo is CDP-SBSESD
SPECIFICATIONS
. Model Name Using Similar Mechanism New
Compact disc player ~
Frequency 2 Hz - 20 kHz : 0.5 dB (GDP-338ESD) CD Tra"SP0rt MEChamsm TYPe KSS-151A
response 2 Hz- 20 kHz 1- 0.3 dB (CDP-GOBESD) Optical Pick-Up Block Type BU-GB

Signal to noise ratio

More than 113 dB

Dynamic range

More than 100 dB

Harmonic distortion Less than General
0.0022% Power AEP Model:
Channel separation More than 110 dB reqmrements (CDP'33BESD)
220 V AC (or 240 V AC adjustable by
OUIPUIS Sony personnel), 50/60 Hz
LINE OUT (FIXED) Output level 2 v (at so kiloohms) UK Model =
(phono jacks) Load impedance over 10 kiloohms (CDP*338530)
LINE OUT (VARIABLE) Output level max, 2 v (at so kiloohms) 2:31;, £23,125]? goégoaglzusab'e by
(phono jacks) Load impedance over 50 kiloohms US. Canadian M o d e" :
DIGITAL OUT Output level max, 05 Vp-p (CDP-608ESD)
(COAXIAL) Load impedance 75 ohms 120 v AC, 60H:
(cable) E Model 3
DIGITAL OUT (OPTICAL) Wave length 660 nm (CDP'aasESD) _
(optical output connector) Output level -13 dBm 233$? 220 or 240 V AC adIustable,
Z
HEADPHONES Output level max. 28 mW
(stereo phone Jack) Load impedance 32 ohms 55me t 27 w
SAFETY-RELATED COMPONENT WARNINGII u _p '°"

COMPONENTS IDENTIFIED ev MARK A on DOTTED agrflfcfimdmg 335:5)(375 mm

LINE WITH MARK A oN THE scHEMATIC DIAGRAMS proactio'ns) (135/ ><5><147/

AND IN THE PARTs LIST ARE CRITICAL To SAFE inche's)

OPERATION. REPLACE TH ESE COMPONENTS WITH

SONY PARTS WHOSE PART NUMBERS APPEAR As Weight (approx) 125 k9 (27 lbs 11 02)

SHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUB-
LISHED BY SONY.

ATTENTION AU COMPOSANT AYANT NAPPORT
A LA SECURITE!

LEs COMPOSANTS IDENTIFIEs PAR UNE MAROUE A
SUR LES DIAGRAMMES SCHEMATIOUEs ET LA LISTE
DES PIECES SONT CRITIOUEs POUR LA SECURITE
DE FONCTIONNEMENT. NE REMPLACER CES COM-
POSANTS OUE PAR DEs PIECES SONY DONT LES
NUMEROS s0NT DONNEs DANS CE MANUEL ou
DANS LEs SUPPLEMENTS PUBLIEs PAR SONY.

* continued on next page-

COMPACT nlsc PLAYER
SONY;

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CDP-338ESD/608ESD

Remote commander

Remote control system Inirared control

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

Dimensions 67 X 20 X175 mm (w/h/d)
(2/.>< "/uX 7 inches)

Weight 135 g (4.7 oz)

including batteries

Supplied accessories

Connecting cord 1
(2 phone plugs H 2 phone plugs)

Remote commander 1
Size AA batteries 2
Screws 4

Design and specifications subject to change without notice.

SAFETY CHECK-OUT

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 It} 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.

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

to

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

TABLE OF CONTENTS

Section Title fig
1. GENERAL
1-1. Location of Controls ............................ 3
2. ELECTRICAL ADJUSTMENTS .................... 4
3. DIAGRAMS
31. Circuit Boards Location rrrrrrrrrrrrrrrrrrrrrrrr 7
3-2. Printed Wiring Boards ................ ,9
3-3. Schematic Diagram ............................ 13
3-4. Semiconductor Lead Layouts .................. 18

4. EXPLODED VIEWS

4-1. Cover Section rrrrrr

4-2. Front Panel Section

4-3. Chassis Section ................................ 23

44. Mechanism Section ............................ 24

4-5. Optical Pick-Up Block Section ................ 25
5. ELECTRICAL PARTS LIST ...................... 26

Measuring the voltage drop across a resistor by
means of a VOM or battery-operated AC volt-
meter. The limit indication is 0.75V, 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
multimetcrs that have a 2V AC range are
suitable. (See Fig, A}

F ig. A. Using an AC voltmeter to check AC leakage.

To Exposed Metal
Fair: on Set

A C
voltmeter
(0. 75 VI

0.15uF Ere/($2 /
'_____l

Earth Glaund

................................................................................ ..-.-._.-.-.-.-.-.-.-.-.-.-.-.-..

SERVICING NOTE

NOTES ON HANDLING THE OPTICAL PICK
UP BLOCK 0R BASE UNIT

The laser diode in the optical pick-up block may
suffer electrostatic breakdown because of the poten-
tial difference generated by the charged electrostatic

load, etc. on clothing and the human body.

During repair, pay attention to electrostatic break-
down and also use the procedure in the printed
matter which is included in the repair parts.

The flexible board is easily damaged and should be
handled with care.

CAUTION

Use of controls or adjustments or performance
of procedures other than those specified herein
may result in hazardous radiation exposure,

NOTES ON LASER DIODE EMISSION CHECK

The laser beam on this model is concentrated so as to be
focused on the disc reflective surface by the objective
lens in the optical pick-up block. Therefore, when check-
ing the laser diode emission, observe from more than 30
cm away from the objective lens.