Technics SL-EH570 User manual

Technics
Brand
Technics
Model
SL-EH570
Type
User manual
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Service Manual
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AD0102032C2
Compact Disc Player
● SL-EH570
Traverse Deck: RAE0152Z Mechanism series
Colour
(S)..........Silver Type
Area
(E)..........Europe.
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© 2001 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-EH570 (Order No. AD0102030C2) for information on
Accessories and 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 touch the traverse deck (optical pickup).
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3 Precaution of Laser Diode
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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.
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● 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.
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Technics SL-EH570 User manual

Technics
Brand
Technics
Model
SL-EH570
Type
User manual
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