Sony cdx 5072 service manual

Page 2

5W (COX-5072: German Model)

Tuning range 5,950 r 6,205 kHz
Antenna terminal External antenna connector
Intermediate frequency

1071 MHz/450 kHz
Sensitivity 50 uV

Signal-tomoise ratio 55 dB
Harmonic distortion at 1 kHz
03%

General
Tone controls Bass 1 8 dB at 100 Hz

Treble i 8 dB at 10 kHz
Power requirements 12 V DC car battery (negative

ground)
Current drain 1 A (CD play)
15 A (during disc loading or
eject)
Operating tamperatu re
40°C to 50"C
Dimensions Approx. 186 X 57 x172 mm

(w/h/d) not incl. projecting
parts and controls

Mass Approx. 1.5 kg

Supplied accessories Mounting hardware (1 set)
Power connecting cord (1)
Front panel case (1)

Design and specifications subject to change without
notice,

TABLE OF CONTENTS
Section M Page

Specifications - -

Servicing Notcs 2
1. GENERAL
Location and Function of Controls -------- ~ ~ . 3
Connection ............ 5
2. DISASSEMBLY ........... 7
3, TEST MODE ............. 8

4. ELECTRICAL ADJUSTMENTS

CDScction --
TunerSecrion

5. DIAGRAMS

5,1. {c Pin Description ............... t . . t . . . .. 13
5.2. Block Diagram ............ . .............. 15
5-3. Printed Wiring Boards

- Mechanism Dcck Section - - - - . - ' ------- 18
5-4. Schematic Diagram

-McchanistcckScction - 21
5-5. Schematic Diagram - Main Section - ------- 26
56. Printed Wiring Board - Main Section - ----- 31
5-7. Printed Wiring Board - Display Scction - - ~ ~ 34
5-8. Schematic Diagram - Display Section - .... 37
6. EXPLODED VIEWS --~~ .. ' - ' -------- 41
7. ELECTRICAL PARTS LIST 45

SERVICING NOTES

Laser Diode Properties

Material: GaAlAs

Wavelength: 780 nm

Emission Duration: continuous

Laser Output Power: less than 44.6 uW*

This output is the value measured at a distance of
200mm from the objective lens surface on the
Optical Pick-up Block.

.000

CAUTION

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

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.

SAFETY-RELATED 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
SONV PARTS WHOSE PART NUMBERS APPEAR AS
SHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUB-
LISHED BY SONY.

ATTENTION AUCOMPQSANT AYANY RAPPORT
A LA SECURITE!

LES comeosmrs IDENTIFIES PAR UNE MAROUE A
sun LES DIAGRAMMES SCHEMATIOUES ET LA LISTE
oss PIECES sour cnmouEs POUR LA sécunrré
us FONCTIONNEMENT. NE REMPLACER css com-
POSANTS oue PAR oss PIECES sonv oom LES
NUMEROS SONT DONNES DANS cs MANUEL ou
DANS LES SUPPLEMENTS PUBLIES PAR SONY.