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31
8. AlignmentandAdjustments - MFC32E
8-1HighVoltageTransformer
1.Removeconnectorsfromthetransformerterminals
andcheckcontinuity.
2.Normalresistancereadingsareasfollows:
(Roomtemperature=20°C)
8-2LowVoltageTransformer
1.Thelowvoltagetransformerislocatedonthe
Assybaseplate.
2.Removethelowvoltagetransformerfromthe
Assybaseplateandcheckcontinuity.
3.Normalresistorreadingisshowninthetable.
8-3Magnetron
1.Continuitycheckscanindicateonlyanopen
filamentorashortedmagnetron.Todiagnosean
openfilamentorshortedmagnetron:
2.Isolatethemagnetronfromthecircuitby
disconnectingitsleads.
3.Acontinuitycheckacrossthemagnetronfilament
terminalsshouldindicateoneohmorless.
4.Acontinuitycheckbetweeneachfilamentterminal
andmagnetroncaseshouldreadopen.
Secondary
Filament
Primary
90.0 10%
ShowsContinuity
1.45 10%
FilamentTerminals
Primary
Terminals
PRECAUTION
1.Highvoltageispresentatthehighvoltageterminalsduringanycookcycle.
2.Itisneithernecessarynoradvisabletoattemptmeasurementofthehighvoltage.
3.Beforetouchinganyovencomponentsorwiring,alwaysunplugtheovenfromitspowersourceand
dischargethehighvoltagecapacitor.
Terminals Resistance
1~2(Input)
3~4(Output)
5~6(Output)
290
Ω
.
4.0
Ω
..
1.0
Ω
.
GasketPlate
MagnetronAntenna
CoolingFins
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