Technics SLS 120 Service Manual

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ORDER NO. A0970305008

Service Manual

MASHK

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X MASH is a trademark of N'll'.

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DIGITAL AUDIO

Areas for Every Model.
SL-5120 .....E, E6, CC, GN (H)
E, EG (A)

sr.-s125 ..... E, as (H)

Traverse Deck: RAE01422 Mechanism Series

Specifications
Audio
No. of channels: 2 channels (left and right, stereo)
Output voltage: 0.6 V (50 kohm) diameter 3.5 stereo mini jack
Frequency response: 20 ~ 20,000 Hz (+0.5 dB, ~1.5 dB)
SIN: more than 94 dB General
Wow and flutter: Below measurable limit
DA converter: 1 bit, MASH

Portable CD Player

SL-S120

Colour (H) ..... Gray Type

Colour (A) . Blue Type
Colour (H) ....... Gray Type
Areas
E . Europe, Poland and Russia.

EG . . Germany and iiaiy.

GC ........... Asia, Middle East and Africa,
Latin America.

GN ........... Oceania.

Panasonic Alkaline dry cell batteries:(LFi6, apes.) : Approx. 10h
Rechargeable batteries (When rechargeable 3 hours.) : Approx. 3h
The play time may be less depending on the operating conditions. .

Operation temperature range: 0 - 40 degree
Rechargeable temperature range: 5 - 40 degree

Headphone ouipui ievéii max.9 m"vv'+9 mW/ifi uixrn (variable) Power supply: BC 4.5 v
stereo mini jack diameter 3.5 Power consumption:
Digital filter: 8 times over sampling Ac adaptor; 5.5 W
Battery (Dc 3V); 0.6 W
Signal Format When recharging; 3.3 W
Correction system: Technics New Dimensions: 128(Wide)l28.D(High)/144(Depth)mm
Super Decoding Algorithm Weight: 220 9 without batteries
265 g with batteries
Pickup
Type: One beam Note: Design and specifications are subject to change without
Light source: Semiconductor laser notice. Weight and dimensions are approximate.
Wavelength: 780 nm
Lens: Glass pressed lens
Playing time

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

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.

Panasonic®

© 1997 Matsushlte Electric Industrial Co., Ltd.
All rights reserved. Unauthorized copying
and distribution is a violation of law.

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SL-S120/SL-S125

I Contents

Precaution of Laser Diode.
Location of Controls
Accessories .........
Power Supply Preparation
Accidental Operation Prevention Function
Troubleshooting Guide
Sequential Play .......
Using the Unit with Optional Accessories
Other Play Methods
Cautions...
Handling Precautions tor Traverse Dec
Operation Checks and

Main Component Replacement Procedures
Checking the Operation Problems on

the Traverse Deck (Optical Pickup) .......... 12

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IPrecaution of Laser Diode

CAUTION:
lens.
Wave length: 780 nm '

Automatic Adjustment Results
Display Function (Seif-check Function).
Measurements and Adjustments
Block Diagram
Type illustration of 10's. Transistors and Diodes
Schematic Diagram
VWring Connection Diagram ..
Terminal Function of 10's
Printed Circuit Board and
Replacement Parts List (Electrical).
Resistors and Capacitors
Cabinet Parts Location
Replacement Parts List (Cabinet. Packing.
Accessories and Grease or Jig/Tool)
Packaging ............................... . ...........

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

Maximum output radiation power trom pickup: 100 pWNDE

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.
3. Do not look at the focus lens using optical instruments.
4

It was already adjusted.

Recommend not to look at pickup lens for a long time.

ACHTUNG:
Lasereinheit abgestrahlt.

Wellenlange: 780 nm

Dieses Produkt enthalt eine Laserdiode. lm eingeschalteten Zustand wird unsichtbare Leserstrahlung von der

Maximale Strahlungsleistung der Lasereinheit: 100 pWNDE

Die Strahlung an der Lasereinheit ist 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 Instrumenten in die Fokussierlines blicken.

4. Nicht fiber langere Zeit in die Fokussierlines blicken.

ADVARSEL: l dette a apparat anvendes laser.

CLASS 1
LASER PRODUCT

CAUTION!

THIS PRODUCT UTILIZES A LASER.

USE OF CONTROLS OR ADJUSTMENTS OR PERFORMANCE OF PRO'
CEDURES OTHER THAN THOSE SPECIFIED HEREIN MAY RESULT IN
HAZARDOUS RADIATION EXPOSURE.

DO NOT OPEN COVERS AND DO NOT REPAIR YOURSELF. REFER
SERVICING T0 QUALIFIED PERSONNEL.

Marking sign is located on bottom of the unit.

WARNING:

TO REDUCE THE RISK OF FIRE,
ELECTRIC SHOCK 0R PRODUCT
DAMAGE, DO NOT EXPDSE THIS
APPLIANCE T0 RAIN, SPLASH<
ING, DRIPPING OR MOISTURE.

ntfinwuimfl warm

(Bollum uI product)

(Pasai under apparatat)

(Tuotleen pohjassa)

(Appaierens underside]

leduklelS underside)

(Unlerselie des Gerates)

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7

4 I

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