Sony cdx 7561 service manual

Page 2

CDX-7561

TABLE 0 F CONTENTS

Title

Section

Specifications
Servicing Note ~ ~~
SECTION 1. GENERAL

Location of Controls -- -- i ' - - - 3
SECTION 2. CIRCUIT DESCRIPTION ----- .. 4
SECTION 3. MECHANICAL ADJUSTMENTS ' - ' - 6
SECTION 4. ELECTRICAL ADJUSTMENTS """ 5
SECTION 5. DIAGRAMS

5-1. Block Dim ...................... 11

5-2 Semiconductor Lead layouts -------- 15

5-3 Printed Wiring Boards (MD Section) -~ 16

5-4. Schematic Diagram (III) Section) - 19

5-5 Circuit Board Location ------------- 21

5-6 Printed Wiring Boards

{MAIN Section) ----------------- 22

5-7. Schematic Diagram (MAIN Section] - 26

5~8, Schematic Diagram (TUNER Sectio ) -- 29

59. 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 during 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 unsolden'ng.

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 WARNING

COMPONENTS IDENTIFIED BY MARK A 0R DOTTED

LINE WITH MARK

A ON THE SCHEMATIC DIAGRAMS

AND IN THE PARTS LIST ARE CRITICAL T0 SAFE

OPERATION.

REPLACE THESE COMPONENTS WITH

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

Hemovlng the Flat Package IC

1.

2.

Prepare an enameled wire (0.3mm diameter) and
apply it to the back side of the IC pins as illus-
trated below.

Solder or fix with adhesive tape.

Heat the IC pin with the soldering iron and draw
the enameled wire so that the IC pin is removed
fi'om the pattern as illustrated.