I am a 'Joe Blo' end user looking for a service manual for my antique Quasar Super wave [1988] which hasn't been repaired since 1994. I am the original owner with receipts and the cookbook that came with it, but now I need to trace what finally happened to my model MQ 8797. The lights come on but no microwave and no fans, and I don't know if the convection works or the broiler. The cap may be all that is needful to be replaced since caps are usually what goes with old stuff.