Panasonic NN-GD566M User manual

ORDERNO.PHAMOS0603017A2

MicrowaveOven

NN-GD566M

NN-GD556W

NN-GD546W

NN-SD466M

NN-SD456W

NN-SD446W

BPQ(U.K.)

EPG(France, Italy,Finland,Spain,Portugal, Greece,Poland,Holland)

WPG(Switzerland)

SPG(Norway,Finland, Sweden, Denmark)

Pleasefileandusethis specifiedmanual togetherwiththeservicemanualfor ModelNN-V653WF(ORDER NO.

SIMMC0303012C2).

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1SCHEMATIC DIAGRAM (FOR

GRILL MODELS)

2SCHEMATIC DIAGRAM (FOR

SOLOMODELS)

3CAUTIONSTOBEOBSERVED

WHEN TROUBLESHOOTING

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Unlikemanyother appliances, themicrowaveovenisahighvoltage, highcurrentdevice.It isfreefromdanger in

ordinary use,thoughextremecareshouldbetakenduringrepair.

Caution

Servicemen shouldremovetheirwatches wheneverworkingclosetoorreplacingthemagnetron.

3.1Checkthegrounding

Donotoperateon atwowireextensioncord.The microwaveovenisdesignedtobegroundedwhen used. It is

imperative, therefore,toensuretheapplianceis properlygroundedbeforebeginning repairwork.

3.2Inverter warnings

DANGER,HIGH VOLTAGE AND HIGHTEMPERATURE(HOT/LIVE) OFTHEINVERTERPOWER SUPPLY (U)

TheHighVoltageInverterPowerSupply handles very high voltageandcurrentfor themagnetrontube.Thoughitis

freefromdanger inordinary use,extremecareshouldbetaken duringrepair.

Thealuminum heatsink is alsoenergizedwithhighvoltage(HOT),donot touchwhentheAC input terminals are

energized. Thepower deviceCollector is directly connectedtothealuminumheatsink.

Thealuminum heatsink may beHOTduetoheat energy, therefore, extremecareshouldbetakenduringservicing.

H.V.Inverter warning

WARNING FOR INVERTER POWER SUPPLY (U) GROUNDING

Check theHighVoltage InverterPowerSupplycircuitgrounding.Thehighvoltageinverter powersupply circuitboard

must haveaproper chassisground. Theinverter groundingbracketmustbeconnectedtothechassis.Ifthe inverter

boardis notgroundedit willexposetheusertovery highvoltages andcauseextremeDANGER! Besurethat the

invertercircuit is properlygroundedviatheinvertergroundingbracket.

Groundingoftheinvertercircuitboard

WARNING! DISCHARGE THE HIGHVOLATGE CAPACITORS

Forabout30seconds after the oven is turned off, anelectricchargeremains inthehighvoltagecapacitors inthe

Inverter Power Supply circuit board.

When replacingorchecking parts,removethepowerplugfromtheoutletandshorttheinverter output terminal of the

magnetronfilamentterminalstothechassis groundwithaninsulatedhandlescrewdriver todischarge.Pleasebesure

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totouchthe chassis groundsidefirst andthenshort totheoutputterminals.

Dischargingthehighvoltage capacitors

WARNING

Thereis highvoltagepresent withhighcurrentcapabilities inthecircuits oftheprimary andsecondary windings,choke

coilandheat sinkoftheinverter.Itis extremely dangerous towork on ornear thesecircuits withtheovenenergized. DO

NOTmeasurethevoltageinthehighvoltagecircuit including thefilamentvoltageofthemagnetron.

WARNING

Nevertouchanycircuit wiringwithyourhandor withaninsulatedtool duringoperation.

3.3Partreplacement.

When any part or component is tobereplaced, always ensurethatthe powercordis removed from thewall outlet.

3.4Whenthe10Afuseisblown duetothe

operation oftheshortswitch:

WARNING

When the10A 250V fuseis blownduetotheoperationoftheinterlock monitor switch, replaceall ofthe components

(primary latchswitch, shortswitchandpower relayB (RY1)).

1. This is mandatory. Refer to“adjustments andmeasurements”forthelocation oftheseswitches.

2. When replacingthefuse,confirm that it has the appropriateratingforthesemodels.

3. When replacingfaulty switches,besurethemounting tabsarenotbent, brokenor deficientintheir ability tohold

theswitches.

3.5Avoidinsertingnails,wireetc.through any

holesintheunitduringoperation.

Neverinsert awire,nailorany other metal objectthroughthelampholes on thecavity or any holesorgaps,because

suchobjects may work asanantennaand causemicrowaveleakage.

3.6Confirmafterrepair

1. After repair orreplacementofparts,makesurethat thescrewsoftheoven, etc. areneither loosenor missing.

Microwavemightleakifscrewsarenotproperly tightened.

2. Makesurethatall electrical connections aretightbeforeinserting theplugintothewalloutlet.

3. Check for microwaveenergy leakage. (Refer toprocedurefor measuringmicrowaveenergy leakage).

CAUTIONMICROWAVE RADIATION

USE CAUTIONNOTTO BECOME EXPOSEDTORADIATION FROM THE MICROWAVE MAGNETRON OROTHER

PARTSCONDUCTING MICROWAVE ENERGY.

Page

IMPORTANTNOTICE

Thefollowingcomponents havepotentials above2000Vwhilethe applianceis operated.

lMagnetron

lHighvoltage transformer (Locatedoninverter(U))

lHighvoltage diodes (Located oninverter (U))

lHighvoltage capacitors (Locatedoninverter(U))

Pay specialattentiontotheseareas.

When theapplianceis operatedwiththedoorhinges ormagnetroninstalledincorrectly, themicrowaveleakagecan

exceedmorethan5mW/cm 2 .Afterrepair or exchange,itis very importanttocheck ifthemagnetron andthe door

hingesarecorrectly installed.

3.7Sharp edges

Caution

Pleaseusecautionwhenunpacking,installingor movingtheunit, assomeexposededges may besharptothetouch

andcauseinjury if nothandledwithcare.

4MEASUREMENTS AND

ADJUSTMENTS

4.1Adjustmentofprimarylatch switch,

secondarylatchswitchand shortswitch.

1. MountthePrimary latchswitch,theSecondary latchswitchand theshort switchtothedoor hook assembly as

showninILL.

NOTE:

NospecificindividualadjustmentsduringinstallationofthePrimarylatchswitch,Secondarylatchswitch

orShortswitchtothedoorhookarerequired.

2. When mountingthedoor hook assembly totheovenassembly, adjust thedoor hook assembly by movingitinthe

direction ofthe arrows intheillustrationsothattheovendoorwillnot haveany play init. Check forplay inthedoor

by pullingthe door assembly.Makesurethat thelatchkeys movesmoothly after adjustmentis completed.

Completelytightenthescrews holdingthedoor hook assembly totheovenassembly.

3. Reconnect theshort switchandcheck thecontinuity ofthe monitor circuit andall latchswitchesagainby following

thecomponent testprocedures.

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4.2Measurementofmicrowaveoutput

Theoutputpower ofthemagnetroncanbedeterminedby performingIEC standardtest procedures. However,due to

thecomplexity of IECtestprocedures, it isrecommendedtotestthemagnetronusingthesimplemethodoutlined

below.

Necessary Equipment:

*1 literbeaker *Glass thermometer

*Wristwatchor stopwatch

NOTE:

Checkthelinevoltageunderload.Lowvoltagewilllowerthemagnetronoutput. Takethetemperaturereadings

andheatingtime asaccuratelyaspossible.

1. Fill thebeakerwithexactlyoneliter oftapwater.Stir thewaterusingthethermometer andrecordthewater’s

temperature. (recordedasT1).

2. Placethebeaker onthecenterofglass tray.

SettheovenforHighpower andheatit for exactly oneminute.

3. Stirthewater againandreadthetemperatureof thewater.(recordedas T2).

4. Thenormal temperatureriseatHighpower level for eachmodel, is as shownintable.

5EXPLODED VIEW AND PARTS

LIST

TABLE (1L

1min.test)

RATED OUTPUT

TEMPERATURE RISE

1000W Min.8.6°C

Page

6PARTS LIST

NOTE:

1. When ordering replacementpart(s),pleaseusepart number(s) showninthispart list.

Donotusedescriptionofthepart.

2. Important safety notice:

Components identifiedby mark havespecial characteristics importantfor safety.

When replacingany of thesecomponents, useonlymanufacture’s specifiedparts.

NOTE:

Pleaseorder allparts fromMELUK inU.K.

Ref.

No.Part No. Part Name&

Description

Pcs/Set

Remarks

1F00064080BP CAUTIONLABEL1BPQ

1F00069000EP CAUTIONLABEL1EPG,WPG,SPG

3F04905R80SEP ENERGY LABEL1GD566MEPG

3F04905R80HEP ENERGY LABEL1GD556WEPG

3F04906A00HEP ENERGY LABEL1SD456WEPG

6F10015Q00APG BASE 1

7F10084T00AP RUBBERFOOT4

8F110D6W70SXP CABINETBODY 1GD566M

8F110D6W70HXP CABINETBODY 1GD556W,GD546W

8F110D6W80SXP CABINETBODY 1SD466M

8F110D6W80HXP CABINETBODY 1SD456W,SD446W

F200A5R60BP OVEN1GD566M,GD556W

F200A8G20BP OVEN1GD546W

F200A5Q70BP OVEN1SD466M,SD456W

F200A6D60SXP OVEN1SD446W

10F20555Q00BP COVER 1

11F21315G10XN PULLYSHAFT1

12F290D5Q00AP ROLLERRING(U) 1

F30205Q00AP DOORHOOK 1

14F31365Q00AP HOOK LEVERA1

15F400A5U00XN FANMOTOR 1

16F40085G10XN FANBLADE 1

17F40255Q00AP AIRGUIDE A 1

18F40425Q00APG AIRGUIDE F1

19F612E5G10XNINCANDESCENT

LAMP (U) 1

21F41445Q00AP UPPER ORIFICE 1

22F42095Q00AP LOWERORIFICE 1

J61415G10XNMICROSWITCH1V-15G-3C25(PRIMARY LATCHSWITCH)

J61414T00AP MICROSWITCH1D3V-16G-3C25(SECONDARY LATCH SWITCH)

F61785U30XNMICROSWITCH1D3V-1G-2C25(SHORTSWITCH)

2M236-M42JMAGNETRON1

A62304210BP FUSE 1BPQ,EPG

F62306V60BP FUSE 1WPG,SPG

A6331-1T50 FUSE 1GD566M,GD556W,GD546W(15A)

33F607X8B00BP NOISE FILTER(U) 1GD566M,GD556W,GD546W

33 F607X8A00BP NOISE FILTER(U) 1SD466M,SD456W,SD446W

34F63265U30XNTURNTABLE MOTOR 1

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