Sony cfd 545 service manual

Page 1

CFD-545

SERVICE MANUAL

US Model
Canadian Model

AUDIO POWER SPEOFICATIONS
(US MODEL ONLY)

POWER OUTPUT AND TOTAL
HARMONlC DIST ORTION

With 3.2-ohm loads, both channels driven
from 80 ~ 15,000 Hz; rated 2 W per chamel-
minirnum RMS power, with no more than
10 % total harmonic distortion in AC

operation.

Other Specifications
CD player section
rn
Comp-n din digital audio system
Laser diode pmpeniu
Material: GIAIA:
Wave length: 780 nm
Emission duntinn: Continuous
user output: Less than «.6 w
(TI'I'B output 3 the value measured at a distance of
aboutZOOnunlmmthe velenssurfaceon
the optinl pickup bloek with 7 mm aperture)
Spindle speed
200 r/ min (rpm) to 500 r/ min (rpm) (CLV)
Number of channels
2
Frequency response
20 - 209 Hz v/Z 43
Wow and flutter
Below measurable limit

Model Name Using Similar Mechanism CFO-550
CD , co Mechanism Type KSM-21SBAN
Section _ .
Optical Pick-up Name KSS-21 SB
TAPE Model Name Using Similar Mechanism NEW
Section Tape Transport Mechanism Type MF-D555W
SPECIFICATIONS
Radio section PM;of Ems d
FMWICY mm m casseuecor er.
man-105M212 WVAC'QHZ ,
AM:530-lJIOkHz wooesmotmmimu
Aerials For remote commander:
FM: Telmpic ash! 3 V DC, 1 size M (RAG) bitten};
AM: Built-in lei-iii: bar aerial Power mwmption
AC 3) W
Cassette-coder section W 9
Rmrding sysmn For CD radio Wider:
4-inch Zvchannel etereo PM rmrdlng
Fast winding lime
Approx. lmflsec) with SonyassettnC-éo Sonyml: WWW lash
Frequency response Sony alkaline LRZD: :pprox. 19 h
Gen:::f I (normal). so - IOM Hz Tape pl)
Speaker SonyRZOPgapproxJS h
Full range: 10 an (4 in) dim, Sony albflne um. approx. 12 Ii
3.2 ohms, cone type (2)
Tweeter: 3 cm (1 M. in.) an. (2» to playback
Outputs Son non pm. 25 h
Headphones lack (stereo minipiek) y
For 16 - 63 ohms impedance Iindphones Sony Ilhline LRZO: app-rm 4.5 in
Speakers terminals
For supplied 3.2 ohms impedance spams
Pwer output (exdudingUSmodd) - Continued on nexi page -

zswuwmuomn. 10% harmonic
amnion in DC operation)

CD RADIO CASSETTE-CORDEB

SONY;

Page 2

Dimensions

Applvx. 637 x 27 x 106 mm (w/h/d)
(75 Vat) Va 8 5 inches) (incl. projecting parts)

Mass

Approx. 6.2 kg (13 lb. l1 oz) (ind. batteries)

Supplied accessories

AC power cord (1)
Remote «antral (1}

Design and specifications are subject to change without
notice.

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 pans 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.

I.

A commercial leakage tester. such as the Simpson 229 or RCA
WT-540A. Follow the manufacturers instructions to use these
instruments.

A battery~operated AC milliammeter. The Data Precision 245
digital multimeter is suitable for thisjob.

Measuring the voltage drop across a resistor by means of a VOM
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
Pans on Set

AC
015 pF / Vo/tmeter

(a. 75 V)

I}...
L.

"It-- Earth Ground

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

TABLE OF CONTENTS

1. SERVICING NOTES .....................

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

3. DISASSEMBLV .........................................................

4. DIAL POINTER SETTING ..................................
ADJUSTMENTS

5-1. MechanicalAdjustments ................................................
5-2. Electrical Adjustments
Tape Deck Section
Tuner Section .
CD Section ......................................................................

6. DIAGRAMS
6-1. Schematic Diagram

- CD, System Control Section - ....................................
6-2. Printed Wiring Boards

- CD, System Control Section - ....................................
6»3. Schematic Diagram

- Main Section - .............................................................
6-4. Printed Wiring Boards

- Main Section - .................
6-5. lC Pin Function Description

7. EXPLODED VIEWS.
8. ELECTRICAL PARTS LIST.

CAUTION

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

SAFETYRELAI'ED COMPONENT WARNING"

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 AU COMPQSANT AYANT RAPPORT
A LA secuntréi

Les composmrs IDENTIFIES PAR uue MAROUE As
sun Les DIAGRAMMES SCHEMATIQUES e1 LA LISTE
Des PIECES sour cmrioues POUR LA secuntre
DE FONCTIONNEMENT. NE REMPLACER ces COM-
POSANTS oue PAR DES PIECES sonv DONT Les
NUMenos sour DONNES mus ce MANUEL ou
DANS LES SUPPLEMENTS PUBLIES PAR souv.