Sony cfd 503 service manual

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§E_RVIC_E MANUAL

CFD-503/505

US Model
Canadian Model

CFD-503/505

AEP Model
Australian Model

CPD-505
Photo: CPD-503
Model Name Using CD Section CFO-550
Similar Mechanism Tape Section CPS-208
CD Mechanism Type KSM-21aBAN
Optical Pick-Up Type KSS-21aB
Tape Transport Mechanism Type MF-311

CD player section
System
Compact disc digital audio system
Laser diode properties
Material: GaAlAs
Wave length: 780 nm
Emission duration: Continuous
Laser output: Less than 44.6 uW
(This output is the value measured at a distance
of about 200 mm from the objective lens sur-
face on the optical pick aperture.)
Spindle speed
200 r/rnin (rpm) to 500 r/min (rpm) (CLV)
Number of channels
2
Frequency response
20-20000 Hz +1/»2 dB
Wow and flutter
Below measurable limit

Radio section

Frequency range

FM: 87.6408 MHz (US, Canadian, Australian)
87.6-107 MHz (AEP)
65- 108 MHz (East European)

AM: $304,710 kHz (US, Canadian)
$314,602 kHz (AEP, East European)
530-1 ,605 kHz (Australian)

SPECIFICATIONS

Aerials
FM: Telescopic aerial
AM: Built~in ferrite bar aerial

Cassette-comer section
Recording system
«Huck 2 channel stereo
Fest winding time
Approx. 115 5 (see) with Sony cassette C-60
Frequency response
TYPE I (normal): 7040,000 Hz

General
Speaker
Full range: 10 cm dia.. 3.2 ohms, cone type (2)
Tureeter: 2 cm (2)
Oumuts
Headphones jack (stereo minijack)
For 16-68 ohms impedance headphones
Maximum power output
2.3 W + 23 W
Power requirements
120 V AC, 60 Hz (US, Canadian)
220»230V AC 50 Hz (AEP, East European)
230-240V AC, 50 Hz (Australian)
9 V DC. 6 R20 (size D) banteries
Power consumption
AC 20 W

Sony alkaline LR20: approx. 19 h
TE playbook
Sony RZOP: approx, 7.5 h
Sony alkaline LR20: approx. l2 h
CD playback
Sony R20P: approx. 2.5 h
Sony alkaline LRZO: approx. 45 h
Dimensions
Approx, szmsmss mm (w/h/d)
(20 lz x [0 x [0]: inches) (incl. projecting parts)
Mass
Approx. 5.8 kg (12 lb. 13 oz) (incl, batteries)
Supplied accessory
AC power cord (I)

Design and specifications are subject to change
without notice.

CD RADIO CASSETTE-COHDEB

SONY®

Page 2

SAFETY CHECK-OUT

After correcting the original service problem, perform the follow-
ing safety checks 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 pans to any exposed metal part having a

return to chassis, must not exceed 0.5 mA (500 microampers.). Leak-

age 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
instruments.

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 aVOM
or battery-operated AC voltmeter. 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 pas-
sive 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
Parts on Set
AC
015 uF 1.5 kt) / Voltmeter
(o. 75 V)

_T_ Eaith Ground
Fig. A. Using an AC voltmeter to check AC leakage.

TABLE OF CONTENTS

1. SERVICING NOTE ..................................................

2. GENERAL ...................................................................

3. DISASSEMBLY.

4. ADJUSTMENTS
4-1 . Mechanical Adjustments
4-2, Electrical Adjustments

5. DIAGRAMS
5-]. Printed Wiring Boards (CD Section) .............
5»2. Schematic Diagram (CD Section)
5-3. Schematic Diagram (Audio Section
5-4. Printed Wiring Boards (Audio Section) .
5-5, IC Pin Function Description ................

6. EXPLODED VIEWS ................................................ 42

7. ELECTRICAL PARTS LIST

CLASS 1 LASER PRODUCT
LUOKAN I USERLAITE

KLASS 1 LASERAPPARAT

This Compact Disc player is classified as 3
CLASS 1 LASER product.

, The CLASS 1 LASER PRODUCT label is

located on the rear exterior.

CAUTION

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

SAFETY-RELATED COMPONENT WARNING-I!

COMPONENTS IDENTIFIED BY MARK A OR 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 AUCOMPOSANT AVANT RAPPORT
A LA SECURITE!

LES COMPOSANTS IDENTIFIES PAR UNE MAROUE A
SUR LES DIAGRAMMES SCHEMATIOUES ET LA LISTE
DES PIECES SONT CRITIQUES POUR LA SECURITE
DE FONCTIONNEMENT. NE REMPLACER CES COM-
POSANTS QUE PAR DES PIECES SONY DONT LES
NUMEROS SONT DONNES DANS CE MANUEL OU
DANS LES SUPPLEMENTS PUBLIES PAR SONY.

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