Technics SLSW 415 Service Manual

Page 1

. GOMPAGT

IIIIGII'ALS AUDIO

Traverse Deck: RAE01422 Mechanism Series

Specifications

Audlo
No. or channels:
. Output voltage:
Frequency response:
SIN:
Wow and flutter:

DA converter:
Headphones output level:

Digital tllter:

Signal Format

. Correction system:

Pickup
Type:
Light source:
Wavelength:
Lens:

Playing time

2 channels (left and right, stereo)

0.6 V(50 kohm) diameter 3.5 stereo mini jack
20-20300 HZ (+0.5 (15, -t .5 (18)

More than 94 (33"

Below measurable limit

1 bit, MASH

Max. 9 mW+9 mW/16 ohm (variable)
stereo mini jack diameter 3.5

8 times over sampling

Technics New
Super Decoding Algorithm

One beam
Semiconductor laser
780 nm

Glass pressed lens

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

surface.)

multi- Mala-go Anise: sthing

O _ASH is a trademark _i NIT.

ORDER NO. AD970508208

Service Manual

EHDEK mflx

- Portable CD Player

SI.- SW415

Colour (8) ...Silver Type
Areas

EB .............. Great Britain.
EG Europe.

GO Asia, Latin America,

Middle East and Africa.
GN .............. Oceania.
GH Hong Kong.

Batteries used: Extra anti-shock OFF/ON
Panasonic Alkaline dry cell batteries(LFl6. apes):
Rechargeable batteries
HFKFPSGAVEZS,RFKFP3GAVTZS .
(When rechargeable 5 hours.) : Approx 6t5h / 5.5h
SH-CDBSD (When rechargeable 3 hours.) : Approx. 3.5h / 3.0h
The playtime may be less depending on the operating conditions.

:Approx thIth

General
Operation temperature range: 0 - 40 degree
Rechargeable temperature range: 5 - 40 degree
Power supply: DC 4.5 V

Power consumption (Extra anti-shock OFF/0N)

AC adaptor; 5.1 W/5.2W
Battery (Dc 3V); o.5w10.6w
When recharging; 4.3W
Dimensions : i 35.0(Wide)l34.0(High)lt50.5(Depth)rnm
Weight: 355 g (with batteries)
310 g (without batteries)

'These specifications were measured in the extra 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 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.

Panasonic?

© 1997 Matsushita Electric Industrial 00., Ltd.
All rights reserved. Unauthorized copying and
distribution is a violation of law.

Page 2

Skiswfli

I Contents

Page
Precaution of Laser Diode .............................................................
Accessories
Location of Controls ...........
Power Supply Preparations
Sequential Play .....
other Play Method
Using the Unit with Opera on Accessories .
Extra Anti-shock Function..
Accidental Operation Prevention Functio
Troubleshooting Guide
Maintenance ..............
Cautions ...........................
Concerning Compact Discs
Handling Precautions for Traverse Deck
Operation Checks and Main

WNNGQUGOIUIAGOQM

Component Replacement Procedures .......................... 9 ~ 12
Checking the Operation Problems on

the Traverse Deck (Optical Pickup) ..................................... 13
Automatic Adjustment Results

Display Function (Self-check Function) ........................ 14, 15

I Precaution of Laser Diode

Page
Masurements and Adjustments ............................................. 15,16
Outline ot 10-Seoond Sound Keeper Technique
Used for Prevention of Sound from Skipping 1 6

Block Diagram
Schematic Diagram
Type illustration of iC's Transistors and Diodes .
Printed Circuit Board and
Wiring Connection Diagram
Terminal Function of lcs .......
Replacement Parts List (Electrical
Cabinet Parts Location.
Replacement Parts List (Cabinet, Accessories,

Packing and Grease or Jigli'ooi) ..................................... 35,36
Supply of Rechargeable Battery Ass' y

as Replacement Parts .............................. 36
Caution in Use of Rechargeable Battery Ass y 36

Packaging
Resistors and Capacitors

CAUTION: 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: 109 uWNDE
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.
ACHTUNG: Dieses Produkt enthalt eine Laserdiode. im eingeschalteten Zustand wird unsichtbare Leserstrahlung von der

Lasereinheit abgestrahlt.
Welienlange: 780 rim

Maximaie Strahlungsleistung der Lasereinheit: 100 uWNDE

Die Strahlung an der Lasereinheit ist ungei'aihrlich, wenn iolgende Punkte beachtet werden:

1. Die Lasereinheit nicht zerlegen, da die Strahlung an der freigelegten Laserdiode geiéihrlich ist.
2. Den werkseitig justierten Einstellregier der Lasereinhit nicht verstelien.

3. Nicht mit optischen Instrumenten in die Fokussierlines blicken.

4. Nicht fiber tangere Zeit in die Fokussierlines blicken.

ADVARSEL: i dette a apparat anvendes laser.

[Bottom side]

RQLSO77-2

CLASS i
LASER PRODUCT

mmmms mmiiums
vs- Kamuc, min summar-

VAHOI Avauussa i:
suoiaiukitus ominous.
ulel auxin: ashram»
lasersltcilylie

Ali him sitmen.

VAHNING! 0mm:
laserstrilning nil denna
dll Er nuptial! och
snlrren at iiiko plan.
Estrella ei stlaletl.

NYE? Eli UM AF Hififlmi.

ADVERSE Usynlig
lasemiiling nil daksel
aunts on sikkcihedsfis
brim. um 5
eliminating Inr sriiien
£01500

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Page 7

I Cautions

. SL-SW415

Water Resistant (Splash Proof)

Thu unit is splash-proot and is not designed to be used under

water.

Please note the iouowing points to avoid possible damage to the

unit and the included headphones,

one not drop them Into water and dash much water.

cslnee water In the headphones lack. OUT Jack and DO IN
lack may cause damage, cover It properly with attached
rubber cap When than lacks are not In use.

ITo prevent water train entering lhe unlt dual lacks should
be locked to close lhn disc Ild.

alt the unit or the haadphones gal wet with water or sweat, dry
them with a soft cloth.

~Do not open the disc lid ncar watcr or sand. adore opening or
dosing the dis: lid, be sure to wipe off water, dust or sand on
the unit and opcrans with a dry hand, -

OMake sure of no sand and dust around the disc lid. If there is
sand or dust, the disc lid will not close propcrly and water will
get into, which may cause a trouble.

CDO not upoxe the unit or the headphones to salt water. If the
unit and heedphom are immersed in salt water, wash them in
a little fresh water then dry with soft cloth Never wash them
under niruting water.

oDa not place the unit and the headphones for a long period ol
time in high temperature and high humidity area such as bath»
rooms or damp basements, etc.

Rechargeable batteries

o For (55, Ed) areas:

Only the nFKFlz-lGAVEZS, SHCDBsD batteries can be
recharged

o For (ac. GN, EH) areas:

Only the RFKFPSGAVDS, SH-CDBBD batteries can be
recharged,

Ilt the powor delivered by the batterias lasts tor a Very short
time after recharging, it means that the batteries service lift is
over. Do not use them anymore.

CRecharging alrcady charged batter-lac will shorten thair service
life.

oWhen recharging barbaric: tor the first time or when they have
not been used for a long period or time, the play time may be
shorter than usual, ln a case like this, repeatedly recharge and
discharge the batteries. This will store them to their regular
stats, .

ODa not allow any metal objects to touch the terminals of
rechargeable battcrirs since this may cause short-circuiting
which is dangerous.

am not peel oft the plastic covcr-ing on the rechargeable batter-
ios. Short-drcuiting may occur which is dangerous

Dry cell batteries/rechargeable
bane

To prevent damage to the batteries and electrolyte leakage, heed

the following points.

~Align the e and e polarilim properly when inserting the bat-
tcr-ios.

lDo not mix different types or makes ot batteries or old and new
batteries.

IRemove the batlcria if you do not plan to use the unit for a
long period of timc.

oDn not throw batteries into a tire, and do not short-circuit, dis-
assemble or subject them to excessive heat.

.Do not attempt to recharge dry call batteries.

Carrying dry cell batteries/
rechargeable batteries around

When putting dry cell or rechargeable batteries in a pocket or
bag ensure that no other metal objects such as a necklace are
placed together with them. leact with melal may cause short-
circuiting which, in turn, may cause a fire.

Be absolutely sure to carry the rechargeable batteries in the bat
Iery mrrying msc.

When purchasing rechargeable
batteries

As a safety precaution, the portable CD players made by
Panasonic have a construction clusigncd to make it impossible to
recharge ordinary batteries,

To use rechargeable batteries, be absolutely sure to purchase the
rechargeable Ni-Cd batteries dcsigncd aspscially tor this unit.
Special rechargeable Nl-cd batteries:

For (EE, EG) amasl

nFKFPaeAvezs, sn-cnaan (set or 2)

For (cc, GN, GH) areas:

RFKFFaGAvrzs, SH-cnaen (set at 2)

Special rechargeable
batteries

Ordinary dry cell
batteries/rechargeable
batteries

9m

(For United Kingdom)

Notice about the rechargeable battery
The battery is designated recyclable.
Please follow your local recycling regulations.

I Concerning compact Discs

Only compact diss hearing this mark can be used with this unit.

However, conlinued use at irregular shape CDs (heart-shape, octagonal, etc.) can damage

the unit.

lflfififi

nlfl'flllflflu

When driving a car

in the interest of traffic safety, do not operate the unit while
driving,

AC adaptor

oHandle the AC adaptor caratully. Improper handling is dan-
genius.
'Do not touch it with wet hands.
~Do not place heavy objects on top otit,
- Do not forcibly band it.
one sure to connect only the AC adaptor provided with the unit.
oDlscaru-rect the AC adapter from the power outlet if the unit is
not going to be used tora long time.

Unit

No altering or remodeling

This can cause malfunctioning.

N0, dropping or strong impacts

This may damage the unit.

Locations to be avoided

Avoid using the unit in the following locations since they can
muse malfunctioning.

1. Bathrooms and other moistureprone places.

2 Warehouse: and other dusty places

3. Very hot places near heating appliances, etc.

Do not leave the unit exposed to direct sunlight for
long periods of time

This may deiorm or discolor the cabinet and may also cause mal-
fimcfioxling.

Precautions for listening with the
Headphones

am not play your headset at a high volume. Hearing experts ad-
vise against continuous extended play.

-lt you sxpcricncc a ringing in your ears, rcducc volume or dis.
continue usc.

-Do not use while operating a motorized vehicle. lt may create
lratlic hazard and is illegal in many areas.

lYou should use extreme caution or temporarily discontinue use
in potentially hazardous situations.

.Evcn it your headphones is an open-air type designed to let you
hear outside sounds, dont him up the volume so high that you
mnt hcar whats around you. -

If the surface is dirty
Wipe it with a damp cloth and then wipe dry.
Wipe horn the center toward the outer circumference.

X.

X.

Play surface (shiny surtaoel

How to remove a disc from its
case

How to store the disc
in its case

'Ll

label side up

How to hold a disc

OWX

If moisture has formed on a disc

When moisture has tormed because the

disc was brought suddenly into a warm

mom from a cold environment, wipe it off

using a soft dry cloth.

when storing discs

Avoid locations which are

05(de to direct sunlight.

oSusceptible to high levels of humidity or
dust. -

.Dirccdy etposed to has from a heating
appliance.

IOrI top ot a car dashboard or near the

rear window.

Handling precautions

IOn the label side (the side with writing)
Do not write anything using a pencil,
ban-point pen, etc. Do not stick ON paper
or labels.

oOn the disc (shiny) side
Handle this side mortally to keep it tree
from fingerprints ar scratches, Do not
use record cleaners, solvents, eh;

oDo not attach labels or stickers to CD's.
Do not use CD5 with mused adhesive
from lapc'or left over peeled oftstickers.

oDo not use scratch-proot protectors or
covers other than those spedfled for use
with this unit.