DIYbanter - View Single Post - Sanyo microwave oven EM-S1057

Cydrome Leader

wrote:
I have a faulty Sanyo microwave oven EM-S1057, whereby the tray rotates and the bulb lights up but there is no heat produced. With the help of repairfaq site I managed to trace the faulty to a shorted magnetron. The magnetron is of the Galanz type part number M24FB-210A and it is available online.

However I am a little reluctant to replace the magnetron since I am afraid other components might be faulty and the repair cost would not be feasible.

Is it safe to check the voltages of the high voltage transformer with the magnetron unplugged?

If you don't have the correct high voltage probe, the short answer is no.

The part that will mess you up in a microwave oven is the filter cap. It
seems they all have bleed resistors across the terminals these days, but
we're still talking made in China, so you need to short out the cap
anyways.

If you're not ready to short out a 2kV 1uF cap or whatever it is, just
toss the microwave and get another.

Even if the magnetron took out the high voltage rectifier, you still want
to short out that cap before you replace that.

Microwaves these days are all sharp and nasty inside, they're like
grabbing at razor wire. yuck.