Sony CDP-XA50ES Manuel utilisateur

MICROFILM

CDP-XA50ES

AEP Model

E Model

SERVICE MANUAL

COMPACT DISC PLAYER

Model Name Using Similar Mechanism NEW

CD Mechanism Type

CDM32BB-12B (BLACK)

CDM32BN-12B (GOLD)

Base Unit Name BU-12B

Optical Pick-up Name KSS-273B/J1N

SPECIFICATIONS

Photo: Black

– Continued on next page –

– 2 –

TABLE OF CONTENTS

1. SERVICING NOTES

1-1. How to Open the Disc Tray When Power Switch

Turns Off.......................................................................... 3

1-2. Preparation for Adjustment and Measurement ................ 3

2. GENERAL ................................................................... 4

3. DISASSEMBLY.......................................................... 15

4. TEST MODE

4-1. AF Mode.......................................................................... 20

4-2. ADJ Mode ....................................................................... 21

4-3. CLV-S Mode .................................................................... 21

5. ELECTRICAL ADJUSTMENTS ......................... 22

6. DIAGRAMS

6-1. Printed Wiring Boards — SERVO Section —................. 25

6-2. Schematic Diagram — SERVO Section —..................... 27

6-3. Schematic Diagram — AUDIO Section — ..................... 32

6-4. Printed Wiring Boards — AUDIO Section —................. 37

6-5. Printed Wiring Boards — PANEL Section —................. 39

6-6. Schematic Diagram — PANEL Section — ..................... 41

6-7. Printed Wiring Boards

— POWER SUPPLY Section — ..................................... 44

6-8. Schematic Diagram

— POWER SUPPLY Section — ..................................... 47

6-9. IC Pin Function Description ............................................ 54

7. EXPLODED VIEWS ................................................ 60

8. ELECTRICAL PARTS LIST................................ 66

SAFETY-RELATED COMPONENT WARNING!!

COMPONENTS IDENTIFIED BY MARK !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.

MODEL IDENTIFICATION

– BACK PANEL –

4-986-742-

AEP Model : 1

(CED)

Singapore Model : 2

(SP)

– 3 –

SECTION 1

SERVICING NOTES

1-1. HOW TO OPEN THE DISC TRAY WHEN

POWER SWITCHTURNS OFF

Insert a tapering driver into the aperture of the unit bottom, and

turn in the direction of arrow (to OUT direction).

NOTES ON HANDLING THE OPTICAL PICK-UP

BLOCK OR BASE UNIT

The laser diode in the optical pick-up block may suffer electro-

static break-down because of the potential 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.

NOTES ON LASER DIODE EMISSION CHECK

The laser beam on this model is concentrated so as to be focused

on the disc reflective surface by the objective lens in the optical

pick-up block. Therefore, when checking the laser diode emis-

sion, observe from more than 30 cm away from the objective lens.

Notes on chip component replacement

•Never reuse a disconnected chip component.

•Notice that the minus side of a tantalum capacitor may be dam-

aged by heat.

Flexible Circuit Board Repairing

•Keep the temperature of the soldering iron around 270 ˚C dur-

ing repairing.

•Do not touch the soldering iron on the same conductor of the

circuit board (within 3 times).

•Be careful not to apply force on the conductor when soldering

or unsoldering.

This appliance is classified as a CLASS 1 LASER product.

The CLASS 1 LASER PRODUCT MARKING is located on

the rear exterior.

Laser component in this product is capable of emitting radiation

exceeding the limit for Class 1.

The following caution label is located inside the unit.

CAUTION

Use of controls or adjustments or performance of

procedures other than those specified herein may

result in hazardous radiation exposure. [SERVO BOARD] – Conductor side –

IC91 IC101

+5 V

IC261

1-2. PREPARATION FOR ADJUSTMENT AND

MEASUREMENT

Perform connecting the IC261 pin 2of SERVO board to the line

of +5V because this unit does not work without the stabilizer struc-

turally.

tray

tapering driver

To close the disc tray, turn the tapering

driver in the reverse direction (to IN di-

rection).

– 4 –

SECTION 2

GENERAL

This section is extracted

from instruction manual.

– 5 –

– 6 –

– 7 –

– 8 –

– 9 –

– 10 –

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