Welcome to low end...so called state of the art electronics! All this
is
normal for this unit! Look he

http://www.recommendedbuys.com/home-...rp-r-510hk.htm


Bruce H wrote:
Subject:
Panasonic NN-S563WF
S/N: 6B43180461
Mfr Date: April 2003

Problem: The platter motor buzzes or vibrates (no visual motion) and the
interior light has a very faint glow when the unit is in idle. Otherwise
the microwave works fine.

In checking a few components, I found what appears to be an encapsulated
wirewound resistor under the main transformer that tests open. I know
someone else on here tried testing the high voltage diodes unsuccessfully as
they seem to require a high forward bias voltage. However, since the
microwave works, I don't think there is a problem with the diodes.

Does anyone have a schematic? What is the component under the transformer?
I would like to avoid replacing the whole board as that seems such a waste.
I really hate the way electronics have become "disposable". Has anyone come
across this "vibrating/buzzing motor" problem?

Bruce