Report "Double oven, at least 10 yrs old (in house when we got here). Pressure sensitive pad front panel, only the left most button makes a single beep (might be the cancel) no other buttons respond. clock works, oven light on. reset the breaker at the panel, no change. Assume it may need some new electronics. But what part? the panel? the electronic board that supports it? How can I tell? And where can I buy such a beast? I don't have a schematic for this, and don't know where to find one. thanks for your help"