SONY SCD1 - Service Manual Immediate Download

SERVICE MANUAL

US Model

Canadian Model

AEP Model

SCD-1/777ES

SERVICING NOTES ............................................... 3

DISASSEMBLY-2 ..................................................... 5

TEST MODE .............................................................. 10

ELECTRICAL ADJUSTMENTS ......................... 12

DIAGRAMS

7-1. Notes for Printed Wiring Board and

Schematic Diagram ......................................................... 17

7-2. Printed Wiring Boards RF/SLD-FG/SLD-MOT

Boards ........................................................................... 18

7-3. Schematic Diagram RF/SLD-FG/SLD-MOT

Boards ........................................................................... 19

7-4. Printed Wiring Boards LOAD-CN/LOAD-MOT/

LOAD-SW/STB Boards .............................................. 20

7-5. Schematic Diagram LOAD-CN/LOAD-MOT/

LOAD-SW/STB Boards .............................................. 21

7-6. Printed Wiring Board MAIN Board

(component side) .......................................................... 22

7-7. Printed Wiring Board MAIN Board

(conductor side) ........................................................... 23

7-8. Schematic Diagram MAIN Board (1/7) .................. 24

7-9. Schematic Diagram MAIN Board (2/7) .................. 25

7-10. Schematic Diagram MAIN Board (3/7) .................. 26

7-11. Schematic Diagram MAIN Board (4/7) .................. 27

7-12. Schematic Diagram MAIN Board (5/7) .................. 28

7-13. Schematic Diagram MAIN Board (6/7) .................. 29

7-14. Schematic Diagram MAIN Board (7/7) .................. 30

7-15. Printed Wiring Board AUDIO Board ...................... 31

7-16. Schematic Diagram AUDIO Board (1/2) ................ 32

7-17. Schematic Diagram AUDIO Board (2/2) ................ 33

7-18. Printed Wiring Boards BAL(SCD-1)/COAX/

OPT/PIN/SW Boards ................................................... 34

7-19. Schematic Diagram BAL(SCD-1)/COAX/

OPT/PIN/SW Boards ................................................... 35

7-20. Printed Wiring Boards DISPLAY/SW-L/

SW-R Boards ................................................................ 36

7-21. Schematic Diagram DISPLAY/SW-L/

SW-R Boards ................................................................ 37

7-22. Printed Wiring Boards AC/POWER Boards ........... 38

7-23. Schematic Diagram AC/POWER Boards ................ 39

7-24. IC Pin Function Description ........................................... 43

EXPLODED VIEWS ................................................ 50

ELECTRICAL PARTS LIST ............................... 59

TABLE OF CONTENTS

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.

ATTENTION AU COMPOSANT AYANT RAPPORT

À LA SÉCURITÉ!

LES COMPOSANTS IDENTIFIÉS PAR UNE MARQUE 0

SUR LES DIAGRAMMES SCHÉMATIQUES ET LA LISTE

DES PIÈCES SONT CRITIQUES POUR LA SÉCURITÉ

DE FONCTIONNEMENT. NE REMPLACER CES COM-

POSANTS QUE PAR DES PIÈCES SONY DONT LES

NUMÉROS SONT DONNÉS DANS CE MANUEL OU

DANS LES SUPPLÉMENTS PUBLIÉS PAR SONY.

SAFETY-RELATED COMPONENT WARNING!!

COMPONENTS IDENTIFIED BY MARK 0 OR DOTTED

LINE WITH MARK 0 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.

CAUTION

Use of controls or adjustments or performance of procedures

other than those specified herein may result in hazardous ra-

diation exposure.

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.

SAFETY CHECK-OUT

After correcting the original service problem, perform the follow-

ing safety check before releasing the set to the customer:

Check the antenna terminals, metal trim, "metallized" knobs,

screws, and all other exposed metal parts for AC leakage.

Check leakage as described below.

LEAKAGE TEST

The AC leakage from any exposed metal part to earth ground and

from all exposed metal parts to any exposed metal part having a

return to chassis, must not exceed 0.5 mA (500 microamperes.).

Leakage current can be measured by any one of three methods.

1. A commercial leakage tester, such as the Simpson 229 or RCA

WT-540A. Follow the manufacturers' instructions to use these

instruments.

2. A battery-operated AC milliammeter. The Data Precision 245

digital multimeter is suitable for this job.

3. Measuring the voltage drop across a resistor by means of a

VOM or battery-operated AC voltmeter. The "limit" indica-

tion is 0.75 V, so analog meters must have an accurate low-

voltage scale. The Simpson 250 and Sanwa SH-63Trd are ex-

amples of a passive VOM that is suitable. Nearly all battery

operated digital multimeters that have a 2 V AC range are suit-

able. (See Fig. A)

1.5 k

0.15

µF

voltmeter

(0.75 V)

To Exposed Metal

Parts on Set

Earth Ground

The following caution label is located

inside of the unit.

For the customers in Canada

CAUTION

TO PREVENT ELECTRIC SHOCK, DO

NOT USE THIS POLARIZED AC PLUG

WITH AN EXTENSION CORD,

RECEPTACLE OR OTHER OUTLET

UNLESS THE BLADES CAN BE FULLY

INSERTED TO PREVENT BLADE

EXPOSURE.

For the customers in Europe

This appliance is classified as a CLASS 1

LASER product.

The CLASS 1 LASER PRODUCT

MARKING is located on the rear exterior.

Fig. A.

Using an AC voltmeter to check AC leakage.

SECTION 3

SERVICING NOTES

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.

MODEL IDENTIFICATION

NOTES ON HANDLING THE OPTICAL PICK-UP

BLOCK OR BASE UNIT

Part No.

Back Panel

Model

Part No.

SCD-1: US, Canadian

4-215-784-1s

SCD-1: AEP

4-215-784-2s

SCD-777ES: AEP

4-221-854-0s

SCD-777ES: US, Canadian

4-221-854-1s

CHECKING METHOD OF MICROCOMPUTER ROM

VERSION

1. Set the CD1/CD2 switch on the remote commander to CD1.

2. With the power turned on, press the [CHECK] button on the

remote commander while pressing the [TEXT] button on the

set.

3. 15-digit numeric value will be displayed, and the top 4 digits

(left side) of the numeric value imply the microcomputer ROM

version.

Example: If "200006100FFFF3C" is displayed, the ROM ver-

sion is 2.000.

4. To cancel the ROM version check mode, press the [CHECK]

button on the remote commander while pressing the [TEXT]

button on the set.

DISPLAY OF TOC ERROR

insulator

OP mechanism section (BU-23)

Any board to put

connect two jigs (extension cable J-2501-164-A) to the RF board

(CN001, 002) and Main board (CN501, 502).

SERVICE POSITION

In checking the BU section, prepare two new jigs (extension cable J-2501-164-A: 1.00 mm 26 cores).

Display

Contents

TOC ERROR **** Illegal SACD disc (pirate edition)

TOC ERROR *

Not SACD (DVD disc etc.)

REPLACING OPTICAL PICK-UP

Handling

1) A red laser diode for Super Audio CD Player requires more

attention to static electricity than general infrared laser diodes

for CD.

Because its durability to static electricity is far weaker than

that of infrared laser diodes, always use an earth band when

handling the optical pick-up block as service parts.

2) As for the flexible board KHS-180A (RP) packed as service

parts, the short lands have been soldered to protect from static

electricity. Accordingly, remove solders when replacing opti-

cal pick-up. (See Fig. 1)

Fig. 1 Flexible board

3) In handling the KHS-180A (RP), do not touch inhibited parts

shown in Fig. 2, but grip the slide base bearing and U-shaped

guide.

Fig. 2 KHS-180A (RP)

DVD short land

CD short land

Slide base bearing

Skew sensor

Lens actuator

covers

Objective lenses

U-shaped guide

OEIC

Laser holder

Flexible board

Connector

Laser coupler

Touch inhibited parts

· Objective lens

· Skew sensor

· Laser holder

· Laser coupler

· Flexible board

· OEIC

· Lens actuator covers

OP MECHANISM SECTION (BU-23)

MAIN BOARD

Note: Follow the disassembly procedure in the numerical order given.

SECTION 4

DISASSEMBLY-2

five screws

(PS 3

× 5)

two connectors

(CN701, 708)

five connectors

(CN702-706)

MAIN board

OPTICAL PICK-UP

(KHS-180A/J1N) (Page 7)

RF BOARD (Page 7)

lag

screw (PS3

× 5)

two washers

two screws

(B2.6

× 5)

two screws

(B2.6

× 5)

Lift up OP mechanism section (BU-23).

two wires (flat type) (26 core)

(CN501, 502)