Technics SLSX 300 Service Manual

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ORDER NO. AD980305808

Service Manual

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DIGITAL AUDIO

Traverse Deck: RAE01452 Mechanism Series

SpecIfIcatIons
Audio

No. of channels: 2 channels (Ieit and right, stereo)
Output voltage: 0.6 V (50 kohm)
Frequency response: 20 ~ 20,000 Hz (+05 dB, A1 .5 dB)
SIN: more than 96 dBt
Wow and flutter: Below measurable limit
DA converter: 1 bit, MASH 9h

Headphones output level: max. 9 mW+9 mW/16 ohm (variable)

Pickup
Light source: Semiconductor laser
Wavelength: 780 nm
Play time

(When used in hold mode, at 25 degree (77 lahrenhelt) temperature
and on flat and stable surface.)

Batteries used ANTl-SHOCK OFF/ON
2 Alkaline batteries About 20h/ About 21h
Rechargeable batteries About ton/About 10.5h
4Alkaline batteries About 45hlAb0ut 45h
2 Rechargeable and 2 Alkaline batteries About 29h! About 30h

The play time may be less depending on the operating conditions.

Portable CD Player

SI.- SX3OO

Colour
(A) ...... ..Blue Type
(S) ...................Silver Type
Areas
. Great Britain.
.Germany and
Italy, etc.
GN . ....... ......Oceania.
Areas and Colors
EB .. ............ (A) (S)

EG .. .(A) (S)

- (S)

General
Operation temperature range:
Rechargeable temperature range:

0 ~ 40 degree (32 s 104 tahrenheit)
5 -- 40 degree (41 - 104 fahrenheit)

Power supply: DC 4.5 V
Power consumption

Power source ANTI-SHOCK OFF/ON
When using Ac adaptor 3.1 W/3.3 W
When recharging Approx. 5.9 W

Dimensions: 128(Wlde)l25.7(High)/134.5(Depth) mm

(5%; X1' X55/Is')

Weight: 225 g (9.0 02) without batteries

270 g (10.6 oz) with batteries
Recharging time: About 3 h
*Tnese specifications were measured in the ANTI~SHOCK OFF mode.

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

A WARNING
This service information is designed for experienced repair technicians only and is not designed tor 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.

Panasonid

© 1998 Matsushita Electric industrial 00., Ltd.
All rights reserved. Unauthorized copying and
distribution is a violation of law.

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I Contents

Precautior of Laser Diode
Accessories ......................
Power Supply Preparations
Location of Controls .....
Hold Funcion ....... .
Using the Remote Control
Anti Sequentia Play (Basic Play)
Other Play Methods .........
Using the bnit with Optional Accessories
Concerni lg Compact Discs
Troublesh oting Guide.
Maintena ce
Handling recautions for Traverse Deck
Operation Checks and

Main domponent Replacement Procedures ................. 12 ~ 15

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in

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bohln'osininebro

I Pr caution of Laser Diode

Checking the Operation Problems on the
Traverse Deck (Optical Pickup) ..
Automatic Adiustment Results
Display Function (Self-check Function) ........................... 11, 18
Measurements and Adjustments ............................................. 18, 19
Outline of 10-Second Sound Keeper Technique
Used for Prevention of Sound from Skipping ........................ 20
Type illustration of lcs, Transistors and Diodes .
Schematic Diagram .............................................
Printed Circuit Board and
Vlnring Connection Diagram .
Block Diagram .....................
Terminal Function of lCs
Cabinet Parts Location
Replacement Parts List
Packaging ..................

CAUTION:

ACHTUN G:

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: 100 {.LWNDE

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

1. Do not disassemble the optical 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 pickup lens for a long time.

Dieses Produkt enthalt eine Laserdiode.
Lasereinheit abgestrahlt.

lm eingeschalteten Zustand wird unsichtbare Leserstrahlung von der

Wellenlange: 780 nm
Maximale Strahlungsleistung der Lasereinheit: 100 pWNDE

Die Strahlung an der Lasereinheit ist ungefahrlich, wenn folgende Punkte beachtet werden:

1. Die Lasereinheit nicht zerlegen, da die Strahlung an der freigelegten Laserdiode geféhrlich let.
2. Den werkseitig justierten Einstellregler der Lasereinhit nicht verstellen.

3. Nicht mit optischen lnstrumenten in die Fokussierlines blicken.

4. Nicht fiber langere Zeit in die Fokussierlines blicken.

ADVARE EL: l dette a apparat anvendes laser.

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