Technics SLEH-560 Service manual

Table Of Contents

COVER 1 Note 2 Handling Precautions for

Traverse Deck

2.1 Handling of traverse

deck (optical pickup)

2.2 Grounding for

electrostatic breakdown prevention

2.2.1 Human body

grounding

2.2.2 Work table grounding 3 Precaution of Laser Diode 4 Location of Controls 5 Operation Checks and

Component ReplacementProcedures

5.1 Checking for the main P.

C.B.

5.2 Checking for the CD

servo P.C.B.

5.3 Replacement for the

traverse deck ass’y

5.4 Replacement for the

belt, loading motor ass’y and loading switch

6 Error Code Display and

Servo Adjustment Function

6.1 Error Code Display

Procedure

6.1.1 Automatic Adjustment

Results

6.1.2 Checking the

mechanism switches

6.2 Servo Adjustment

Procedure

6.3 Error code based on

troubleshooting

7 To Supply Power Source 8 Schematic Diagram Notes 9 Schematic Diagram 10 Printed Circuit Board

Diagram

11 Type Illustration of ICs,

Transistors and Diodes

12 Wiring Connection

Diagram

13 Block Diagram

Service Manual

TOP NEXT

AD0002042C2

Compact Disc Player

SL-EH560

Traverse Deck:RAE0152Z-1 Mechanism series

Colour

(S)..........Silver Type

Area

(E)..........Europe.

14 Troubleshooting Guide 15 Terminal Function of ICs

15.1 IC451

(M38504M6200F):System Control

15.2 IC701

(AN8839NSBE2):Servo Amp

15.3 IC702 (MN662790RSA1):Servo Processor/Digital Signal Processor/Digital Filter/D/A converter

15.4 IC703 (AN8739SBE2): Focus Coil/Tracking Coil/Traverse Motor/ SpindleMotor Drive

16 Replacement Parts List 17 Cabinet Parts Location 18 Loading Unit Parts

Location

•@

TOP NEXT

Table Of Contents

COVER

1 Note

2 Handling Precautions for Traverse Deck

2.1 Handling of traverse deck (optical pickup)

2.2 Grounding for electrostatic breakdown prevention

2.2.1 Human body grounding

2.2.2 Work table grounding

3 Precaution of Laser Diode

4 Location of Controls

5 Operation Checks and Component ReplacementProcedures

5.1 Checking for the main P.C.B.

5.2 Checking for the CD servo P.C.B.

5.3 Replacement for the traverse deck ass’y

5.4 Replacement for the belt, loading motor ass’y and loading switch

6 Error Code Display and Servo Adjustment Function

6.1 Error Code Display Procedure

6.1.1 Automatic Adjustment Results

6.1.2 Checking the mechanism switches

6.2 Servo Adjustment Procedure

6.3 Error code based on troubleshooting

7 To Supply Power Source

8 Schematic Diagram Notes

9 Schematic Diagram

10 Printed Circuit Board Diagram

11 Type Illustration of ICs, Transistors and Diodes

12 Wiring Connection Diagram

13 Block Diagram

14 Troubleshooting Guide

15 Terminal Function of ICs

15.1 IC451 (M38504M6200F):System Control

15.2 IC701 (AN8839NSBE2):Servo Amp

15.3 IC702 (MN662790RSA1):Servo Processor/Digital Signal Processor/Digital Filter/D/A converter

15.4 IC703 (AN8739SBE2):Focus Coil/Tracking Coil/Traverse Motor/SpindleMotor Drive

16 Replacement Parts List

17 Cabinet Parts Location

18 Loading Unit Parts Location

Service Manual

TOP NEXT

AD0002042C2

Compact Disc Player

SL-EH560

Traverse Deck:RAE0152Z-1 Mechanism series

Colour

(S)..........Silver Type

Area

(E)..........Europe.

•@

TOP NEXT

1 Note

TOP PREVIOUS NEXT

Refer to the service manual for Model No. SA-EH560 (OREDER No. AD0002043C2) for information on Packaging.

•@

TOP PREVIOUS NEXT

2 Handling Precautions for Traverse Deck

TOP PREVIOUS NEXT

The laser diode in the traverse deck (optical pickup) may break down due to potential difference caused by static electricity of clothes or human body.

So be careful of electrostatic breakdown during repair of the traverse deck (optical pickup).

2.1 Handling of traverse deck (optical pickup)

2.2 Grounding for electrostatic breakdown prevention

2.2.1 Human body grounding

2.2.2 Work table grounding

•@

TOP PREVIOUS NEXT

2.1 Handling of traverse deck (optical pickup)

TOP PREVIOUS NEXT

1. Do not subject the traverse deck (optical pickup) to static electricity as it is extremely sensitive to electrical shock.

2. To protect the laser diode against electrostatic breakdown, short the flexible board (FFC board) with a clip or similar object. Refer to

3. Take care not to apply excessive stress to the flexible board (FFC board).

4. Do not turn the variable resistor (laser power adjustment). It has already been adjusted. Refer to

Fig. 2-1.

•@

TOP PREVIOUS NEXT

2.2 Grounding for electrostatic breakdown prevention

TOP PREVIOUS NEXT

2.2.1 Human body grounding

2.2.2 Work table grounding

•@

TOP PREVIOUS NEXT

2.2.1 Human body grounding

TOP PREVIOUS NEXT

Use the anti-static wrist strap to discharge the static electricity from your body. Refer to Fig. 2-2.

Fig. 2-2.

•@

TOP PREVIOUS NEXT

2.2.2 Work table grounding

TOP PREVIOUS NEXT

Put a conductive material (sheet) or steel sheet on the area where the traverse deck (optical pickup) is placed, and ground the sheet. Refer to Fig. 2-3.

Fig. 2-3.

Caution:

The static electricity of your clothes will not be grounded through the wrist strap.

So take care not to let your clothes tough the traverse deck (optical pickup).

•@

TOP PREVIOUS NEXT

3 Precaution of Laser Diode

TOP PREVIOUS NEXT

CAUTION:

This product utilizes a laser diode with the unit turned on, invisible laser radiation is emitted from the pickup lens.

Wave length: 780 nm

Maximum output radiation power from pickup: 100μW/VDE

Laser radiation from pickup unit is safety level, but be sure the followings:

1. Do not disassemble the pickup unit, since radiation from exposed laser diode is dangerous.

2. Do not adjust the variable resistor on the pickup unit. It was already adjusted.

3. Do not look at the focus lens using optical instruments.

4. Recommend not to look at the pickup lens for a long time.

•@

TOP PREVIOUS NEXT

4 Location of Controls

TOP PREVIOUS NEXT

•@

TOP PREVIOUS NEXT

5 Operation Checks and Component Replacement/Procedures

TOP PREVIOUS NEXT

This section describes procedures for checking the operation of the major printed circuit boards and replacing the main components.

For reassembly after operation checks or replacement, reverse the respective procedures. Special reassembly procedures are described only when required.

5.1 Checking for the main P.C.B.

5.2 Checking for the CD servo P.C.B.

5.3 Replacement for the traverse deck ass’y

5.4 Replacement for the belt, loading motor ass’y and loading switch

•@

TOP PREVIOUS NEXT