Technics SL-EH560 User 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
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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
© 2000 Matsushita Electric Industrial Co., Ltd. All rights reserved. Unauthorized copying and distribution is a violation of law.
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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.

© 2000 Matsushita Electric Industrial Co., Ltd. All rights reserved. Unauthorized copying and distribution is a violation of law.
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1 Note
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Refer to the service manual for Model No. SA-EH560 (OREDER No. AD0002043C2) for
information on Packaging.
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2 Handling Precautions for Traverse Deck
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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
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2.1 Handling of traverse deck (optical pickup)
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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 Fig. 2-1.
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.
Fig. 2-1.
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2.2 Grounding for electrostatic breakdown
prevention
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2.2.1 Human body grounding
2.2.2 Work table grounding
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2.2.1 Human body grounding
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Use the anti-static wrist strap to discharge the static electricity from your body. Refer to Fig. 2-2.
Fig. 2-2.
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2.2.2 Work table grounding
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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).
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3 Precaution of Laser Diode
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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.

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4 Location of Controls
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5 Operation Checks and Component
Replacement/Procedures
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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.
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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
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5.1 Checking for the main P.C.B.
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Check the main P.C.B. as shown above.
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5.2 Checking for the CD servo P.C.B.
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Follow the (Step 1) - (Step 3) of item 5.1.

Check the CD servo P.C.B. as shown below.
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5.3 Replacement for the traverse deck ass’y
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Follow the (Step 1) - (Step 3) of item 5.1.
Follow the (Step 1) - (Step 5) of item 5.2.