How To Check Microwave Capacitor & diode in Hindi ||saini solution repairing||

What Does a Diode Do?
The microwave’s diode converts alternating current (AC) to direct current (DC), which doubles the voltage and powers the magnetron that heats the food. Without the diode, the magnetron would not receive enough voltage to do its job.
Testing the Diode with a Multimeter
While a faulty diode will likely have visible signs that it needs to be replaced, to be sure, you should test it with a multimeter.
Before accessing the microwave to remove the diode for testing, make sure the microwave is disconnected from the power source. Before removing the diode from the microwave, it is recommended that the high-voltage capacitor be discharged (see safety warning above).
When testing a microwave diode with a multimeter, you will need a multimeter that is powered by a 9-volt battery and with a setting of Rx10,000. Alternatively, you can use a multimeter in conjunction with a 9-volt battery to test the microwave diode.
A healthy diode will only show continuity - a continuous electrical path - in one direction. Therefore, you should test for continuity in one direction and then the other direction. If there is continuity in both directions, the diode has shorted and needs to be replaced. If there is no continuity, the diode is open and needs to be replaced.
To test a diode with a multimeter:
Set the multimeter to Rx10,000 or higher.
Calibrate the meter leads.
Touch the black multimeter lead to one end of the diode and the red multimeter lead to the other.
Note the multimeter reading.
Swap the multimeter leads to test for continuity in the opposite direction.
Note the multimeter reading.
If the multimeter showed continuity in both directions or not at all, the diode needs to be replaced.
To test a diode with a 9-volt battery:
Set the multimeter to DC voltage.
Hold the black multimeter lead against one end of the diode.
Touch the opposite end of the diode to the battery’s negative terminal.
Touch the red multimeter lead to the battery’s positive terminal.
Note the multimeter reading.
Test the diode for continuity in the opposite direction by holding the black multimeter lead against the opposite end of the diode. The other end of the diode should touch the battery’s negative terminal and the red multimeter lead, the positive terminal, like the first test. You can also reverse the battery, holding the same end of the diode against the positive terminal on the battery.
Note the multimeter reading.
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