Panasonic NN-S573MF Manuale utente

ORDERNO.SIMMC0303014A3

MicrowaveOven

NN-T583SF / NN-S573MF / NN-S563WF / NN-S553WF / NN-

S543WF

QPQ(Australia&New Zealand)

Please fileand use thismanual togetherwiththeservice manual for

Model NN-S560WF(ORDERNO. SIMMC0006012C3)

SPECIFICATIONS

2003 Shanghai Matsushita MicrowaveOvenCo., Ltd. / All rights

reserved. Unauthorizedcopying and distribution isaviolation of

law.

1. SCHEMATICDIAGRAM

2. CAUTIONS TO BE OBSERVED WHEN

TROUBLESHOOTING

Unlike manyotherappliances, themicrowave ovenisahigh voltage, high currentdevice. Itis

free from dangerinordinaryuse, though extremecareshouldbetakenduring repair.

Caution

Servicemenshouldremovetheirwatches wheneverworking close

toorreplacing themagnetron.

2.1. Check thegrounding

Donotoperateon atwowireextension cord. Themicrowave ovenisdesignedtobegrounded

whenused. Itisimperative, therefore, toensuretheappliance isproperlygroundedbefore

beginning repairwork.

2.2. Inverterwarnings

DANGER, HIGHVOLTAGE AND HIGHTEMPERATURE (HOT/LINE)OFTHE INVERTERPOWER

SUPPLY(U)

Thishigh voltageinverterpowersupplyhandles veryhigh voltage

and currentforthemagnetron tube. Though itisfree fromdangerin

ordinaryuse, extremecareshouldbetakenduring repair.

Thealuminumheat sinkisalsoenergizedwithhigh voltage(HOT),

sodo nottouchwhentheACinputterminalsareenergized. The

powerdevices Collectorisdirectlyconnectedtothealuminumheat

sink.

Thealuminumheat sinkmaybeHOTduetoheat energy, therefore,

extremecareshouldbetakenduring servicing.

H.V. Inverterwarning

WARNINGFORINVERTERPOWERSUPPLY(U) GROUNDING

Check thehigh voltageinverterpowersupplycircuitgrounding. The

high voltageinverterpowersupplycircuitboardmust haveaproper

chassisground, theinvertergrounding bracket must beconnected

tothechassis. Iftheinverterboardisnotgroundeditwill expose

theusertoveryhigh voltages and cause extremeDANGER!Besure

that theinvertercircuitisproperlygroundedviatheinverterearth

bracket.

Grounding oftheinvertercircuitboard

WARNING!DISCHARGE THE HIGHVOLATGE CAPACITORS

Forabout30 secondsaftertheovenisturnedoff, anelectriccharge

remainsinthehigh voltagecapacitorsintheinverterpowersupply

circuitboard.

Whenreplacing orchecking parts, removethepowerplug fromthe

outlet and shorttheinverteroutputterminal ofthemagnetron

filamentterminalstothechassisground withaninsulatedhandle

screwdrivertodischarge. Please besuretotouchthechassis

ground sidefirst and thenshorttotheoutputterminals.

Discharging thehigh voltagecapacitors

WARNING

Thereishigh voltagepresentwithhigh currentcapabilities inthe

circuits oftheprimaryand secondarywindings, choke coil and heat

sinkoftheinverter. Itisextremelydangeroustoworkon ornear

these circuits withtheovenenergized. DO NOTmeasurethevoltage

inthehigh voltagecircuitincluding thefilamentvoltageofthe

magnetron.

WARNING

Nevertouchanycircuitwiring withyourhand orwithaninsulated

tool during operation.

2.3. Partreplacement.

Whenanypartor componentistobereplaced, always ensurethatthepowercord isremoved

from thewall outlet.

2.4. Whenthe10Afuse isblownduetotheoperation oftheshort

switch:

WARNING

Whenthe10A250Vfuse isblownduetotheoperation ofthe

interlock monitorswitch, replace all ofthecomponents (primary

latchswitch, doorswitch, shortswitchand powerrelayB(RY1)).

1. Thisismandatory. Referto“adjustments and measurements”for

thelocation ofthese switches.

2. Whenreplacing thefuse, confirm that ithas theappropriate rating

forthese models.

3. Whenreplacing faultyswitches, besurethemounting tabsarenot

bent, brokenordeficientintheirabilitytoholdtheswitches.

2.5. Avoidinserting nails, wireetc. through anyholes intheunit

during operation.

Neverinsertawire, nail or anyothermetal objectthrough thelampholes on thecavityor any

holes or gaps, because suchobjectsmay workas anantennaand cause microwave leakage.

2.6. Confirm afterrepair

1. Afterrepairorreplacementofparts, make surethat thescrewsof

theoven, etc. areneitherloose normissing. Microwaves might

leak ifscrewsarenotproperlytightened.

2. Make surethat all electrical connectionsaretightbeforeinserting

theplug intothewall outlet.

3. Check formicrowaveenergyleakage. (Refertoprocedurefor

measuring microwaveenergyleakage).

CAUTIONMICROWAVE RADIATION

USE CAUTIONNOTTO BECOMEEXPOSEDTO RADIATIONFROM

THEMICROWAVE MAGNETRONOROTHERPARTSCONDUCTING

MICROWAVE ENERGY

IMPORTANTNOTICE

Thefollowing components havepotentialsabove2000Vwhilethe

appliance isoperated.

-Magnetron

-High voltagetransformer(Locatedon inverter(U))

-High voltagediodes (Locatedon inverter(U))

-High voltagecapacitors(Locatedon inverter(U))

Payspecial attention tothese areas.

Whentheappliance isoperatedwiththedoorhinges ormagnetron

fixedincorrectly, themicrowaveleakagecanexceedmorethan5mW

/cm2. Afterrepairorexchange, itisveryimportanttocheck ifthe

magnetron and thedoorhinges arecorrectlyinstalled.

2.7. Sharpedges

Caution

Please use caution whenunpacking, installing ormoving theunit,

as someexposededges maybesharptothetouchand cause injury

ifnothandledwithcare.

3. MEASUREMENTSAND ADJUSTMENTS

3.1. Adjustmentofprimarylatchswitch, secondarylatchswitchand

shortswitch.

1. MountthePrimarylatchswitch, thesecondarylatchswitchand

theshortswitchtothedoorhookassemblyas showninILL.

NOTE:

Nospecificindividual adjustmentduring installation ofthePrimary

latchswitch, secondarylatchswitchorshortswitchtothedoor

hookarerequired.

2. Whenmounting thedoorhookassemblytotheovenassembly,

adjust thedoorhookassemblybymoving itinthedirection ofthe

arrowsintheillustration, sothat theovendoorwill nothaveany

playinit. Check forplayinthedoorbypulling thedoorassembly.

Make surethat thelatchkeysmovesmoothlyafteradjustmentis

completed. Completelytightenthescrewsholding thedoorhook

assemblytotheovenassembly.

3. Reconnect theshortswitchand check thecontinuityofthe

monitorcircuitand all latchswitches againbyfollowing the

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