Technics SLPG 580 A Service Manual

Page 1

ORDER NO.M8960200102

Service Manual

Compact Disc Player

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DIGITAL Auoro MAS H *

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RAE11OOZ MECHANISM SERIES

Specifications

I Audio

No. of channels
Frequency response
Output voltage
Dynamic range

S/N

Harmonic distortion
Total harmonic distortion
Wow and tlutter

DA converter
Output impedance
Load impedance

l Pickup
Wavelength
Laser Power

2 (left and right. stereo)
2 - 20,000 Hz. 2 0.5 dB
2 v (at 0 dB)

96 dB

100 dB

0,0035% (1 kHz. 0 dB)
0.004% (1 kHz, 0 dB)
Below measurable limit
MASH (1 bit)

1 k9

More than 10 k9

, 780 nm
No hazardous radiation is emitted
(with safety protection)

Compact Disc Player

SL-PG580A

Colour
(K) : Black
Areas
Suffix for
Model No. Area Colour
(E) Europe
(EB) Britain (K)
(EG) Germany and ltaly
I General
Power consumption 18 W
Power supply AC 50/60 Hz, 230 - 240 V
Dimensions (Wx Hx D) 430x103x283 mm
Weight 8.5 kg
Note:

Specifications are subject to change without notice.
Weight and dimensions are approximate.

For United Kingdom only:
This apparatus was produced to BS 800.

*

l MASH is a trademark of NTT.

AWARNING

This service information is designed for experienced repair technicians only and is not designed for use by the general public. it does not
contain warnings or cautions to advise non-technical individuals of potential dangers in attempting to service a product.

Products powered by electricity should be serviced or repaired only by experienced professional technicians. Any attempt to service or repair
the product or products dealt with in this service information by anyone else could result in serious injury or death,

Technics®

© 1996 Matsushita Electric industrial Co, Ltd.
All rights reserved. Unauthorized copying
and distribution is a violation of law,

Page 2

SL-PG580A

I Contents

Handling Precautions for Traverse Deck
Precaution of Laser Diode .
Accessories ........
Connections
Caution for AC Mains Lead
Front Panel Controls
Sequential Play.
Operation Check and Loading Unit Parts Loca 1011

Main Component Replacement Procedures
Automatic Adjustment Results Display Function.

Schematic Diagram.
Printed Circuit Board Diagram
Wiring Connection Diagram
3 Function of IC Terminals.
4 Block Diagram....

5 Troubleshooting Gurde
6 Replacement Parts List

P ackaging

I Handling Precautions for Traverse Deck

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).

0 Handling of traverse deck (optical pickup)

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

2. To prevent the breakdown of the laser diode. an anti-static shorting
pin is inserted into the flexible board (FFC board).
When removing or connecting the short pin. finish the job in as short
time as possible.

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 al~

FFC

Lens (Do not touch) ,
(Handle it carefully)

Be sure to short this portion
(Use the shorting pin or clip)

ready been adjusted.

0 Grounding for electrostatic breakdown prevention FED--1 EELTEEL:
1. Human body grounding : as»; l E Q {
Use the antistatic wrist strap to discharge the static electricity from L.....' L _____ J

your body.

2. Work table grounding
Put a conducive material (sheet) or steel sheet on the area where the
traverse deck (optical pickup) is placedl and ground the Sheet.

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),

Wrist strap
(Anti-static bracelet)

1M!)

Iran plate or some metals to
conduct electricity

I Precaution of Laser Diode :

CAUTION:

ACHTUNG:

This product utilizes a laser diode with the unit turned on, invisible laser radiation is emitted from the pick up lens.
Wave length: 780 nm
Maximum output radiation power from pick up: 100 [JW/VDE

Laser radiation from the pick up unit is safety level. but be sure the followings:

1. Do not disassemble the pick up unit, since radiation from exposed laser diode is dangerous.
2. Do not adjust the variable resistor on the pick up unit. It was already adjusted.

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

4. Recommend not to look at pick up lens for a long time.

Dieses produkt enthalt eine laserdiode. lm eingeschalteten zustand wird unsichtbare laserstrahlung von der lasereinheit
adgestrahit. '

Wellenlange: 780 nm

Maximale strahlungsleistung der laserinhelt: 100 uWNDE

Die strahlung an der lasereinheit ist ungeféhrllch. wenn falgende punkte beachtet werden:

1. Die lasereinheit nicht zerlegen, da die strahlung an der treigelegten laserdiode gefahriich ist.
2. Den werksseitig justierten einstellregler der lasereinreit nicht verstellen.

3. Nicht mit optlschen instrumenten in die fokussierlinse blicken.

4. Nicht Elber tangere zeit in die fokussierlinse blicken.

Cabinet Parts Location 34 35