Sony cdx 4090 service manual

Page 1

CDX-4090

SERVICE MANUAL 0 us Model

Canadian Model
E Model

Model Name Using Similar Mechanism CDX-5070

CD Drive Mechanism Type MG-205X~130
Optical Pick~Up Name KSSv313A
SPECIFICATIONS
CD player section
System Compact disc digital audio system Power amplifier section
Signal-tomoise ratio 90 dB Outputs Speaker outputs
Frequency response 10 - 20,000 Hz (sure seal connectors)
Wow and flutter Below measurable limit Speaker impedance 4 - 8 ohms
' Maximum power output 20 W x 4 (at 4 ohms)
Tuner section
PM General
Tuning range FM tuning interval: Output lead Power amplifier control lead
so kHz/200 kHz switchable Tone controls Bass : 8 dB at 100 Hz
(E Model) Treble i 8 dB at 10 kHz
87.5 - 108.0 MHz (at 50 kHz step) Power requirements 12 V DC car battery
(E Model) (negative ground)
87.5- 1019 MHz (at 200 kHz step) Dimensions Approx, 178 X 50 x 177 mm
Antenna terminal External antenna connector (w/hld) not incli
Intermediate frequency 10] MHz projecting parts and oontrols
Usable sensitivity 10 dBf Mounting dimension Approx 178 x 50 X 154 mm
Selectivity 75 dB at 400 kHz (wlh/d) not incl.
Signal-to-noise ratio 65 dB (stereo), Projecting parts and controls
68 dB (mono) Mass Approx. 1.3 kg
Harmonic distortion at 1 kHz Supplied accessories Power connectiong cord (1)
0.5% (stereo), Mounfing hardware (1 set)
. 0.3% (mono)
Separation 35 dB at 1 kHz Design and specifications are subject to change without
Frequency response 30 - 15.000 Hz notice.
Capture ratio 2 dB
AM
Tuning range AM tuning interval:

9 kHz [10 kHz switchable (E Model)
531 - 1.602 kHz (at 9 kHz step)

(E Model)

530 - 1.710 kHz (at 10 kHz step)

Antenna terminal Extemai antenna connector
Intermediate frequency 1071 MHz/450 kHz FM AM COM PACT DISC PLAYER
Sensitivity 30 )1 V

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TABLE OF CONTENTS

-si°" Title Pa e
Specifications ~ - - . l
Servicing Notes 2
1. GENERAL
Location and Function of Controls . .......... 3
Installation 4
Connection ~ 5
2- TEST MODE ............ 7

3. ELECTRICAL ADJUSTMENTS

CD Section ............
Tuner Section

4. DIAGRAMS

4.]. Block Diagram ..................... 12
4-2. Printed Wiring Boards

- Mechanism Deck Section -
4-3. Schematic Diagram

- Mechanism Deck Section -
4-4. Schematic Diagram - Main Section -
46. Printed Wiring Board - Main Section -

4.5. [C Pin Description . . . . . ................... 31
5_ EXPLODED VIEWS ............ . . . . . . .. 33
6. ELECTRICAL PARTS LIST ~ ~ - ~ ~ ~~~~~ 37

SERVICING NOTES

Laser Diode Properties

Material: GaAlAs

Wavelength: 780nm

Emission Duration: continuous

Laser Output Power: less than 445 nW"

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

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 OR 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 WARNINGI!

COMPONENTS IDENTIFIED 8V MARK A OR DOTTED
LINE WITH MARK A ON THE SCHEMATIC'DIAGRAMS
AND IN THIE 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 8V SONV.

ATTENTION AUVCOMPOSANT AVANT RAPPORT
A LA SECURITEI

LES COMPOSANTS IDENTIFIES PAR UNE manque A
sun LES DIAGRAMMES scHéMAnoues ET LA LISTE
DES PIECES: som camoues POUR LA sécunlré
DE FONCTIDNNEMENT. NE HEMPLACER ces com-
POSANTS QUE PAR DES Piécss sonv pour LES
numsaos som oounés DANS ca MANUEL ou
DANS LES :SUPPLEMENTS'PUBLIES PAR SONY.