Technics SLEH 600 Service Manual

Page 1

ORDER NO. AD980201908

0 Service Manual

Compact Disc Player

A5,... A Chm ' SL-EH6OO
dines .

mum-stage noise shaping

DIGITAL Aumo ' ' Colour
(H) ........ Gray Type

*2 SB-EH600 *ZSB-EHGOO Area ,
V SL-EH600 SH-EHGDO . . (E) ........ Europe, Russra,
*SB-Pceoo ~ Asia, Latin America,
5 . Middle East, Africa,
New Zealand and
Australia.
*2 SB-PSGOO 10 SB-PSGOO
- System SG-EHSOO
a ' Sound Processor SH~EH600
Tuner I Amplifier SA-EHGOO
RSEHWO SA'EHBOO co Changer SL-EHGOO
Cassette Deck RS-EHSOO
Front Speakers"2 SB-EH600
' Center Speaker2 SB-PCSOO
Because of unique interconnecting cables, when a component Surround Speakers 33435600
requrres servrce, send or bring in the entlre system. *1 : MASH is a trademark of NTI'

*2 : Made in PAES

RAEO15ZZ MECHANISM SERIES

Specifications
Audio Section ' General
No. of channels : p 2 (left and right, stereo) , Dimensions : , 287(W) x 89(H) >< 336(D) mm
. Wow and flutter : Below measurable limit Weight : . 2.4 kg
Digital filter : , . 8 ts
DA converter : 1 bit DAC MASH Notes : Specifications are subject to change without notice.
Weight and dimensions are approximate.
Pickup Section
! Wavelength : 780 nm
,
AWARNING
This service information is designed for experienced repair technicians only and is not designed for use by the general public. it does not
0 contain warnings or cautions to advise non-technical individuals of potential dangers in attempting to service a product.
Products powered by electricity should be sewiced 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.

© 1998 Matsushita Electric Industrial Co., Ltd.

. ® All rights reserved. Unauthorized copying
ec nlcs V , and distribution is a violation of law.

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SL-EHBOO |
I Contents

Handling Precautions for Traverse Deck .1
Precaution of Laser Diode
Location of Controls ......
How to Set the Shipping Mode
Operation Checks and

Main Component Replacement Procedures
To Supply Power Source .
To Check Signals
Error Code Display and Servo Adjustment Function .

19-23

Printed Circuit Board Diagram .........................
Type illustration of 10's, Transistors and Diodes
Wiring Connection Diagram '
Block Diagram .........
Troubleshooting Guide
Terminal Function of lC 5
Replacement Parts Lis
Cabinet Parts Location
Loading Unit Parts Locatlo

Schematic Diagram ................................................

NOTE:
Refer to the service manual for Model No. SA-EHGOO for information on Accessories", Connections, Installation , and
Packaging.

CAUTION:

THIS PRODUCT UTILIZES A LASER. , . .

USE OF CONTROLS OR ADJUSTMENTS OR PERFORMANCE OF PROCEDURES OTHER THAN THOSE
SPECIFIED HEREIN MAY RESULT IN HAZARDOUS RADIATION EXPOSURE. I

l 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 ot_clothes or human body.
So, be careful of electrostatic breakdown during repair of the traverse deck (optical pickup). ' ~

O'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 protect the laser diode against electrostatic breakdown, short the flexible
board (FFC board) with a clip or similar object.

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 I

FFC board Lens (Do not touch)

(Handle it carefully)

Short point
adjusted Optic-l pickup
0 Grounding for electrostatic breakdown prevention - ~
1. Human bodyvgrounding . "932.,
Use the anti-static wrist strap to discharge the static electricity from your body. ' I - I
2. Work table grounding L_U__I

Put a conducive material (sheet) or steel sheet on the area where the traverse
deck (optical pickup) is placed, and ground the sheet.

Variable resistor
(Do not turn)

Caution:
The static electricity of your clothes will not be groundedthrough the wrist strap.
So, take care notto let your clothes touch the traverse deck (optical pickup).

Wrist strap
(Anti-static bracelet) /

conduct electricity

Caution when Replacing the Traverse Deck:

The traverse deck has a short point shorted with solder to protect the laser
diode against electrostatic breakdownt Be sure to remove the solder from the
short point before making connections.

'I Precaution of Laser Diode * . .

CAUTION: 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 pickup: 100 uWNDE
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 lock at pick up lens for a long time.
ACHTUNG: Dieses produkt enthalt eine laserdiode. lm eingeschalteten zustand wird unsichtbare laserstrahlung von der lasereinheit

adgestrahit. . v
Wellenlange: 780 nm
Maximale strahlungsleistung der laserinhelt: 100 uWNDE

Die strahlung an der lasereinheit ist ungetahrllch, wenn tolgende punkte beachtet werden:

1. Die Iasereinheit nicht zerlegen, da die strahlung an der treigelegten laserdicde gefalnriich ist.
2. Den werksseitigjustierten einstellregler der lasereinreit nicht verstellen.

3. Nicht mit optischen instrumenten in die fokussierlinse blicken.

4. .Nicht fiber tangere zeit in die fokussierlinse blicken.

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