Sony cdx 7580 service manual

Page 2

CDX-758O

TABLE OF CONTENTS

Section Title Page
Specifications ~~~~~~~~~~~~~~~~~~~~~~~~~~~~ l
Servicing Note ---------------------------- 2
SECTION 1. GENERAL
Location of Controls ------------------- 3
SECTION 2. CIRCUIT DESCRIPTION 4
SECTION 3, MECHANICAL ADJUSTMENTS ' ' ~ 6
SECTION 4. ELECTRICAL ADJUSTMENTS """ 6
SECTION 5. DIAGRAMS
51. Block Diag-am .................... 11
5-2. Semiconductor Lead Layouts ~ 15
5~3. Printed Wiring Boards (MI) Section) 16
5-4. Schematic Diagram (MD Section) ~~~~~ l9
55. Circuit Board Location ------------- 21
5-6. Printed Wiring Boards
(MAIN Section) ..................... 22
57. Schematic Diagram (MAIN Section) 25
5~8. Schematic Diagram (TUNER Section) - 29
5-9. IC Block Diagrams ----------------- 30
5-10. WAVEFORMS -------------- ' ~ 33
SECTION 6. EXPLODED VIEWS '''' 35
SECTION 7. ELECTRICAL PARTS LIST """" 41

SERVICING NOTE

Flexible Circuit Board Repairing

Keep the temperature of the soldering iron around
270°C dunng repairing.

Do not touch the soldering iron on the same con-
ductor of the circuit board (within 3 times).

Be careful not to apply force on the conductor
when soldering or unsoldering.

Notes on chip component replacement

Never reuse a disconnected chip component.
Notice that the minus side of a tantalum capacitor
may be damaged by heat

SAFETY-RELATED COMPONENT WARNINGI!

COMPONENTS IDENTIFIED BV MARK A OR DOTTED

LINE WITH MARK

& 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.

Removing the Flat Package IC

1.

2.

Prepare an enameled wire (013mm diameter) and
apply it to the back side of the 10 pins as illu5<
trated below.

Solder or fix with adhesive tape.

Heat the IC pin with the soldering iron and draw
the enameled wire so that the 10 pin is removed
from the pattern as illustrated.

ATTENTION AU COMPOSANT AYANT RAPPORT
A LA SECURITEI

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 0U

DANS LES SUPPLEMENTS PUBLIES PAR SONY.