Microwave blows circuit when START is pressed

My Panasonic microwave trips house circuit breaker when START is pressed with any amount of cook time. The clock works fine. I tried a 20-amp house circuit with the same results. If I reset the house breaker, set the clock, put in 1 second on the cook time, press START - <circuit tripped>.

ricklade@yahoo.com

— Begin quote from ricklade;147488

My Panasonic microwave trips house circuit breaker when START is pressed with any amount of cook time. The clock works fine. I tried a 20-amp house circuit with the same results. If I reset the house breaker, set the clock, put in 1 second on the cook time, press START - <circuit tripped>.

ricklade@yahoo.com

— End quote

check for a shorted magnetron, Transformer or capacitor;)

jeffrey_benjamin said:
check for a shorted magnetron, Transformer or capacitor;)
I don’t have any service manual to show which parts are which, and since I would be dealing with high voltage - I really would like to know before I go poking around…
Rick