GE Profile Microwave Service Manual anyone?

[rego]

Could really use a service manual for this model.  Anyone have anything?

Thanks, Dave

Model JVM2070SH01

[JWWebster]

I have an advantum manual not a profile though

[rego]

Thanks JW, darn GE tough to find them unless your a certified tech.  I found a bad diode and it's on order but something tells me there is something else going on...gut feeling...so wanted to be prepared if the diode doesn't completely take care of it.  The tech sheet isn't the best.

[JWWebster]

Sometimes the fuse blows for no reason or with age. But if it keeps blowing I first remove the wires to the mag and try it again if it blows again I go to the cap and diode and remove a wire. Keep eliminating components till you narrow it down. I have a switch with a reset button on it and a couple of clamps so I ain't gotta keep wasting fuses.

[rego]

Had a fuse issue with a Jenn-Air the other day, 3 tech's were out before me and none bothered to check the switches which had obvious scorch marks.  Replaced them new fuse and the customer now has a micro after over a year and a half.

Great idea with the trip switch!  Not really the way I like to troubleshoot but if it's a tough one I can't find that would be a perfect way to narrow down the problem.  How did you make it?

[JWWebster]

You can buy one at radio shack. Looks sorta like a dryer door switch but with a red reset button on it.

[rego]

I'll take a look, Thanks JW. 

[tgoods]

Only things I've seen that blow the fuse are door switches or shorted HV capacitor.  A shorted magnetron makes a slightly louder hum than normal but doesn't blow fuses.  A shorted HV diode makes a loud hum but fuse remains intact.  A shorted secondary on the HV transformer makes very loud buzz and lots of smoke, doesn't blow fuse.  A shorted HV capacitor makes a very loud buzz for about half a second before the fuse blows.  I suppose a shorted primary on the HV transformer would blow a fuse but I've never seen it.
I have a circuit breaker that salvaged from an old oven/microwave combo for testing to keep from depleting my stock of fuses.