Easy Microwave main components detection methodsKRZservice manual download site
1 , magnetron methods:KRZservice manual download site
1 ) between the test terminals filament of the magnetron , the resistance value should be less than 1Ω;KRZservice manual download site
2 ) between any terminal and magnetron filament (ground ) test , the resistance should be infinite ; If the resistance is small or zero, then the magnetron should be replaced.KRZservice manual download site
2, the high-voltage transformer Methods: three windings :KRZservice manual download site
1 ) primary winding , approximately 1.45ΩKRZservice manual download site
2 ) secondary winding , about 112ΩKRZservice manual download site
3 ) filament winding , less than 1ΩKRZservice manual download site
If the measured readings do not meet the above data, the high-voltage transformer may be faulty and should be replaced.KRZservice manual download site
3 , high voltage capacitor method :KRZservice manual download site
1 ) requires the measurement instrument located at the highest resistance range ;KRZservice manual download site
2 ) a normal phenomenon :KRZservice manual download site
a, the two terminals of the capacitor test in a short time ( real -hop ) display turned on and the charging resistor of about 10MΩ;KRZservice manual download site
b, terminal and shell resistance should be infinite ;KRZservice manual download site
3 ) abnormal phenomenon :KRZservice manual download site
a, short-circuiting the capacitor is always on ;KRZservice manual download site
b, open the internal resistance of the capacitor and its 10MΩ resistor values are always displayed about 10MΩ 's ;KRZservice manual download site
c, when the high voltage capacitor circuit wiring inside the open , it will display an infinite resistance .KRZservice manual download site
4, the high-voltage diode ( also known as high-voltage rectifier diodes or unidirectional component ) method :KRZservice manual download site
1 ) The instrument is set to the highest resistance range ( note : the measuring instrument must also have at least a battery voltage of 6V , otherwise in both directions will be displayed infinite resistance ) .
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