Sharp model# R930CS-F approximately 7 years old. Turntable not working, unit not heating - these functions quit at same time, failure was catastrophic not intermittent. All modes affected: cook, defrost, convection, etc. Light and fan still functioning.

Best information I can find on line is door latches/switches or control board. Appreciate any ideas/suggestions/opinions on repair options.

Thanks in advance for your response.