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Sharp model # R-1M50 Carousel microwave


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Posted

Hi Guys,
I'm trying to repair a Sharp model # R-1M50 Carousel microwave.
It was blowing fuses and had a bad door switch and shorted HV cap. I replaced all of them.

The original "high voltage cap" was a .63uf 1600v HV cap, but I only had a 1uf 2kv cap to use.
My question is, is it ok to replace a .63uf with a 1uf cap in a microwave oven. Or does the HV cap, "micro-farad size" have to be exact, to form a "tank" with the Magnetron?

Cuz it runs and doesn't blow the fuse anymore but it doesn't get hot.
Could the magnetron not be resonating due to the increased microfarad size of the cap?

Thank you for your time,
Ed

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  • Papa Unix

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  • ServiceTech_Daniel

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ServiceTech_Daniel
Posted

It needs to be the exact size 

 

  • Like 1
  • 2 weeks later...
Posted

Daniel, thank you so much for your reply.

I can't seem to find the exact size.  

Do both, the microfarad size  (.63 uf), and the voltage  (1600 v) have to be the same as the original?

I always thought that you could, at least, go up in voltage size with a cap, within reason, with no problem.

Do you know if the magnetron uses the HV cap to create a resonating freq., or is the resonating freq. created inside the magnetron?

 Thanks again for your input,

 Ed

 

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