Panasonic SA-AK520E User manual

ORDERNO. MD0402036C2

CD StereoSystem

SA-AK520E/ SA-AK520EB/ SA-AK520EG

Colour

(S)... SilverType

SPECIFICATIONS

Specifications

AMPLIFIERSECTION

RMSPoweroutput

THD 10%, both channelsdriven

1kHz

(Lowchannel) 65 W perchannel (6)

10 kHz

(High channel) 65 W perchannel (6)

80 Hz

(Subwooferchannel) 160 W perchannel (8)

Total power 420 W (Total)

Inputsensitivity

AUX 250 mV

InputImpedance

AUX 13.3k

FMTUNERSECTION

Frequencyrange

87.50 -108.00 MHz(50 kHz

steps)

Sensitivity 1.8 V(IHF)

S/N26 dB 1.5V

Antennaterminal(s) 75 (unbalanced)

AMTUNERSECTION

Frequencyrange 522 -1629 kHz(9kHzsteps)

Sensitivity

S/N20 dB(at999 kHz) 560 V/m

CASSETTEDECK SECTION

Track system 4 track, 2channel

Heads

Record/playback Solid permalloyhead

Erasure Doublegap ferritehead

Motor DCservo motor

Recording system ACbias 100 kHz

Erasing system ACerase 100 kHz

Tapespeed 4.8cm/s(17/8ips)

Overall frequencyresponse (+3 dB, -6dBatDECK OUT)

NORMAL (TYPEI) 35 Hz-14 kHz

S/N 50 dB(Aweighted)

Wowand flutter 0.18 %(WRMS)

Fastforward and rewind time Approx. 120 secondswith

C-60 cassettetape

CDSECTION

Sampling frequency 44.1kHz

Decoding 16 bitlinear

Pickup

Beam source/wavelength Semiconductorlaser/780 nm

Numberofchannels Stereo

Frequencyresponse 20 Hz-20 kHz(+1, -2dB)

Wowand flutter Belowmeasurablelimit

Digital filter 8 fs

D/Aconverter MASH(1bitDAC)

MP3

Bitrate 32 kbps-320 kbps

Sampling frequency 32 kHz, 44.1kHz, 48 kHz

GENERAL

PowerSupply(ForE, EGonly) AC230V, 50Hz

PowerSupply(ForEBonly) AC230 -240 V, 50Hz

Powerconsumption 272 W

PowerConsumption in standby

mode

0.5W

Dimensions(W xHxD) 250 x330 x369 mm

Mass 8.1kg

SYSTEM

SC-AK520 (E) Musiccenter:SA-AK520 (E)

Speaker:SB-AK520 (GC)

Subwoofer:SB-WAK520 (GC)

SC-AK520 (EB) Musiccenter:SA-AK520 (EB)

Speaker:SB-AK520 (GC)

Subwoofer:SB-WAK520 (GC)

SC-AK520 (EG) Musiccenter:SA-AK520 (EG)

Speaker:SB-AK520 (EG)

Subwoofer:SB-WAK520 (EG)

Notes:

1. Specificationsaresubjectto changewithout notice. Mass and

dimensionsareapproximate.

2. Total harmonicdistortion ismeasuredbythedigital spectrum

analyzer.

3. Thelabels“HIGH”and “LOW”on therearof thespeakersreferto

High frequency and Lowfrequency.

1. Caution forACMains Lead

2. BeforeRepairand Adjustment

DisconnectACpower, dischargePowerSupplyCapacitorsC520 and C540 through a10 , 5W

resistor toground.

DONOTSHORT-CIRCUITDIRECTLY(withascrewdriverblade, for instance), as thismay destroy

solidstatedevices.

Afterrepairsarecompleted, restorepowergraduallyusing avariac, toavoidovercurrent.

Currentconsumption atAC230V, 50 HzinNOSIGNALmode(volumeminatCD mode)shouldbe

~350mA.

3. Protection Circuitry

Theprotection circuitrymay have operatedifeitherofthefollowing conditionsarenoticed:

-Nosound isheardwhenthepoweristurnedon.

-Sound stopsduring aperformance.

Thefunction ofthiscircuitryistopreventcircuitrydamageif, for example, thepositive and

negative speakerconnection wires are

“shorted”, or ifspeakersystemswithanimpedance less thantheindicatedratedimpedance of

theamplifierareused.

Ifthisoccurs, followtheprocedureoutlines below:

1. Turnoff thepower.

2. Determinethecause oftheproblemand correct it.

3. Turnon thepoweronce againafteroneminute.

Note:

Whentheprotection circuitryfunctions, theunitwill notoperateunless thepowerisfirstturned

off and thenon again.

4. Prevention of ElectroStaticDischarge (ESD) to

ElectrostaticallySensitive(ES) Devices

Somesemiconductor (solidstate)devices canbedamagedeasilybyelectricity. Such

componentscommonlyarecalledElectrostaticallySensitive (ES)Devices. Examples oftypical

ES devices areintegratedcircuitsand somefield-effecttransistorsand semiconductor “chip”

components. Thefollowing techniques shouldbeusedtohelpreduce theincidence of

componentdamagecausedbyelectro staticdischarge(ESD).

1. Immediatelybeforehandling anysemiconductorcomponentor

semiconductor-equipedassembly, drainoff anyESDon yourbody

bytouching aknownearthground. Alternatively, obtainand wear

acommerciallyavailabledischarging ESDwrist strap, which

shouldberemovedforpotential shock reasonspriortoapplying

powertotheunitundertest.

2. Afterremoving anelectrical assemblyequipedwithES devices,

place theassemblyon aconductivesurface suchas aluminium

foil, topreventelectrostaticchargebuildup orexposureofthe

assembly.

3. Use onlyagrounded-tipsoldering iron tosolderorunsolderES

devices.

4. Use onlyananti-staticsolderremoverdevice. Somesolder

removal devices notclassifiedas “anti-static(ESDprotected)”can

generate electrical chargetodamageES devices.

5. Donotuse freon-propelledchemicals. These cangenerate

electrical charges sufficienttodamageES devices.

6. DonotremoveareplacementES device fromits protective

packageuntil immediatelybeforeyou arereadytoinstall it. (Most

replacementES devices arepackagedwithleadselectrically

shortedtogetherbyconductivefoam, aluminiumfoil or

comparableconductivematerial).

7. Immediatelybeforeremoving theprotectivematerial fromthe

leadsofareplacementES device, touchtheprotectivematerial to

thechassisorcircuitassemblyintowhichthedevice will be

installed.

Caution

Besureno powerisappliedtothechassisorcircuit, and observe

all othersafetyprecautions.

8. Minimizebodymotionswhenhandling unpackagedreplacement

ES devices. (Otherwise harmless motion suchas thebrushing

togetherofyourclothes fabricorthelifting ofyourfootfroma

carpetedfloorcangenerate staticelectricity(ESD)sufficientto

damageanES device).

5. Handling the Lead-free Solder

5.1. Aboutleadfree solder(PbF)

Distinction ofPbF P.C.B.:

P.C.B.s(manufactured)using leadfree solderwill have aPbF stampon theP.C.B.

Caution:

-Pbfree solderhas ahighermelting pointthanstandardsolder;

Typicallythemelting pointis50 -70°F(30 -40°C)higher. Please

use ahigh temperaturesoldering iron. Incase ofsoldering iron

withtemperaturecontrol, please set itto700 ±20°F(370 ±10°C).

-Pbfree solderwill tend tosplashwhenheatedtoo high (about

1100°F/600°C).

-Whensoldering orunsoldering, please completelyremoveall ofthe

solderon thepinsorsolderarea, and besuretoheat thesoldering

points withthePbfree solderuntil itmelts enough.

6. Handling Precautions ForTraverse Deck

Thelaserdiodeinthetraverse deck (optical pickup)may break downduetopotential difference

causedbystaticelectricityofclothes or humanbody.

So, becareful ofelectrostaticbreakdownduring repairofthetraverse deck (optical pickup).

-Handling oftraverse deck (optical pickup)

1. Donotsubject thetraverse deck (optical pickup)tostatic

electricityas itisextremelysensitivetoelectrical shock.

2. Theshortland betweentheNo.4(LD)and No.5(GND)pinson the

flexibleboard(FFC)isshortedwithasolderbuild-up toprevent

damagetothelaserdiode.To connect tothePCboard, besureto

openbyremoving thesolderbuild-up, and finishtheworkquickly.

3. Take carenottoapplyexcessivestress totheflexibleboard(FFC).

4. Donotturnthevariableresistor(laserpoweradjustment). Ithas

alreadybeenadjusted.

Fig6-1

-Grounding forelectrostaticbreakdownprevention

1. Humanbodygrounding

Use theanti-staticwrist straptodischargethestaticelectricity

fromyourbody.

2. Worktablegrounding

Putaconductivematerial (sheet) orsteel sheet on thearea where

thetraverse deck (optical pickup)isplaced, and ground thesheet.

Caution :

Thestaticelectricityofyourclothes will notbegroundedthrough

thewrist strap. So, take carenottolet yourclothes touchthe

traverse deck (optical pickup).

Caution whenReplacing theTraverse Deck :

Thetraverse deck has ashortpointshortedwithsoldertoprotect

thelaserdiodeagainst electroststics breakdown. Besureto

removethesolderfromtheshortpointbeforemaking connections.

Fig6-2

7. Precaution of LaserDiode

Caution :

Thisproduct utilizes alaserdiodewiththeunitturned"ON",

invisiblelaserradiation isemittedfromthepick up lens. /

Wavelength:780 nm/ Maximumoutputradiation powerfrompick

up :100 W/VDE/ Laserradiation frompick up unitissafetylevel,

butbesurethefollowings:

1. Donotdisassembletheoptical pick up unit, since radiation from

exposedlaserdiodeisdangerous.

2. Donotadjust thevariableresistoron thepick up unit. Itwas

alreadyadjusted.

3. Donotlookat thefocuslensusing optical instruments.

4. Recommend nottolookat pick up lensforalong time.

ACHTUNG:

Dieses Produkt enthälteineLaserdiode. ImeingeschaltetenZustand

wirdunsichtbareLaserstrahlung von derLasereinheitabgestrahlt. /

Wellenlänge:780nm/ MaximaleStrahlungsleistung der

Lasereinheit:100 W/VDE/ DieStrahlung anderLasereinheitist

ungefährlich, wenn folgendePunkte beachtet werden:

1. DieLasereinheitnichtzerlegen, dadieStrahlung ander

freigelegtenLaserdiodegefährlichist.

2. DenwerkseitigjustiertenEinstellreglerderLasereinhitnicht

verstellen.

3. NichtmitoptischenInstrumentenindieFokussierlinse blicken.

4. NichtüberlängereZeitindieFokussierlinse blicken.

ADVARSEL:Idetteaapparatanvendes laser.

CAUTION!

THIS PRODUCTUTILIZES ALASER.

USE OFCONTROLS ORADJUSTMENTS ORPERFORMANCE OFPROCEDURES OTHERTHAN

THOSE

SPECIFIEDHEREINMAYRESULTINHAZARDOUS RADIATIONEXPOSURE.

Use ofcaution label

8. Accessories

RemoteControl Transmitter

FMIndoor Antenna

ACPowerSupplyCord (For E &EGony)

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