Technics SLVM 500 Service Manual

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ORDER NO. AD950513202 v

Service Manual

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_GITALVIDEO DIGl'rALAunIa

RAE01'I32 MECHANISM SERIES ,
ISPECIFICA'II'IONS
IAUDIO

No. of channels
Frequency response

2 (Ielt and right, stereo)
2-20,000 Hz, ii dB

Output voltage 2 V (at 0 dB)
Dynamlc range 92 dB
SIN 100 dB

Total harmonic distortion
Wow and flutter

DA converter

Output Impedance

Load Impedance

0.007 /0 (1 kHz. 0 dB)
Below measurable limit
MASH (1 bit)

Approx. 15 k0

More than 10 kQ

I VI DEO
Output voltage 1.0 Vp~p, 75 Q
I CONTENTS

Page

PRECAUTION OF LASER DIODE
DISCS YOU CAN USE.
ON-SCREEN DISPLAY
SOUND SWITCH FUNCTION
CAUTION FOR AC MAINS LEAD
FRONT PANEL CONTROL
ACCESSORIES .
CONNECTIONS
SEQUENTIAL PL (

AND VIDEO CDS WITHOUT PBC) ...............
MENU PLAY (ONLY FOR VIDEO CDS WITH PBC)
REMOTE CONTROL OPERATION..
SELF-DIAGNOSTIC DISPLAY FUNC
HANDLING PRECAUTION FOR TRAVERSE DEC
OPERATION CHECKS AND MAIN

COMPONENTS REPLACEMENT PROCEDURES.
OPERATING THE UNIT WITHOUT THE

FRONT PANEL ASSY .......................................................... 21

TechniCs®

Video CD Changer

S L-VM5OO

Colour
(K) Black Type

Area
Suffix for
Model No. Area Colour
(E) Europe.
(EB) Great Britaln. (K)
(EG) Germany and Italy.
~ ~1---~«:~ ~~MASH-isa-trademarr6 NTT.
I PICKUP ,
Wavelength 780 nm
I GENERAL
Power consumption 26 W
Power supply AC 50/60 Hz 230-240 V
Dimensions (W x H x D) 430 x 125 x 370 mm
Weight 5.0 kg
Note:

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

MAIN COMPONENT REPLACEMENT PROCEDURES
SERVICE MODE ............
DIGITAL SERVO SYSTEM
MEASUREMENTS AND ADJUSTMENTS
TROUBLESHOOTING GUIDE .....
REPLACEMENT OF THE FOOT
TROUBLESHOOTING
BLOCK DIAGRAM..
TERMINAL GUIDE ICS, TRANS
SCHEMATIC DIAGRAM .................
WIRING CONNECTION DIAGRAM
TERMINAL GUIDE .
PRINTED CIRCUIT B
REPLACEMENT PARTS LIST.

LOADING MECHANISM PARTS .. 81
CABINET PARTS LOCATION . 82, 83
RESISTORS AND CAPACITOR 85~87

PACKAGING .............................

© 1995 Matsushita Electric Industrial 00., Ltd.
All rights reserved. Unauthorized copying and
distribution is a violation of law.

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SL-VM500

A WARNING

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.

IPRECAUTION OF LASER DIODE

CAUTION:

ACHTUNG: Dieses Produkt enthalt eine Laserdiode. lm eingeschalteten Zustand wird unsichtbare Laserstrahlung

the pickup lens.
Wave length: 780nm
Maximum output radiation power from pickup: 100pWIVDE

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

Do not adjust the variable resistor on the pickup unit. It was already adjusted.
Do not look at the focus lens using optical instruments.
Recommend not to look at pickup lens for a long time.

15pr

von der Lasereinheit abgestrahlt.

Wellenlange: 780nm
Maximale Strahlungsleistung der Lasereinheit: 1OOLIWIVDE

Die Strahlung an der Lasereinheit lst ungetahrlich, wenn folgende Punkte beachtet werden:

1. Die Lasereinheit nicht zerlegen, da die Strahlung an der freigelegten Laserdiode getahrlich ist.

2. Den werkseitig justierten Einstellregler der Lasereinhit nicht verstellen.
3. Nicht mit optischen lnstrumenten in die Fokussierlines blicken.
4. Nicht IIber langere Zeit in die Fokussierlinse blicken.

ADVARSEL: l dette a apparat anvendes laser.

- Use of caution label

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

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

INVISIBLE LASER RADIATION WHEN OPEN.
DANGER AVOID DIRECT EXPOSURE TO BEAM S
ADVARSEL USVNLIG LASERSIAAIIIIG vro Aamue MAR SIKKERHEDSAFBRVDERE

ER unr AF FUNKTION UNDGA IIDSIETIELSE ran SIRALING
VAROI AvArrAgssA 4." SUOJALIJKIIUS DHIIEIJAESSA 0th ALTTIINA

- IIAKIIIATDIIIA LASERSATEILVLLE ALA KATSU SAIEESEEN

VARNING OSYNLIG LASEIIsIAZILIIIIIc IIAA DEIIIIA DEL AR OPPNAD ocu

SPAAAEII An URKOPPLAD BETRAKTA EJ srRALEII.
v ustLIc LASERSJRAUNG AAA DEKSEL APjIES 06 SIKKEIIIIEIISLAS
ADVARSEL BRVTES. UNNGA EKSPOIIERING roa STRALEN.

UNSiCHTKARE LASERSIHAHLUNGWENN ABDECKUNG GEOFFNET.
VOHSICHT NlCllT DEM STRAHL AUSSETZEN. RDLsmuA

I
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.

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