Meat Plow wrote:

On Thu, 10 Mar 2011 19:38:13 +1100, Trevor Wilson wrote:

I have a very nice (read: expensive) Panasonic microwave oven in for
service. It will actually end up being mine, when it's completed. It
uses a SMPS and has some nice features. The display and control systems
seem to work just fine. Anyway, it throws the earth leakage detector
switch when attempting to cook. Once of the power transistors measures
S/C, so my intention is to replace both transistors (with OEM parts),
along with the bridge rectifier (which is suggested by the
manufacturer). The question is this:

If I replace the power supply parts, how likely is it that the magetron
is faulty and the power supply will, again, be destroyed on power up?

Should I replace the magetron on spec? I checked the terminals to earth
and there appears to be no leakage, but you can never tell with these
critters. I guess it's safe to Megger test the magnetron (500 Volts)?

I don't usually do microwave ovens, so this is new territory for me.

TIA

My crystal ball is in for NIST certification so I can't conjure up an
answer for you.


Don't waste your money. Those Japanese models are too small to get
decent accuracy. ;-)


--
You can't fix stupid. You can't even put a Band-Aid™ on it, because it's
Teflon coated.