After a pop, no heating, but all else works. Repair or replace?
After kicking on my over the range GE Spacemaker (circa 2002) microwave/fan, there was a pop, maybe a slight flash of light (seen in my peripheral vision), and a slightly louder hum. The control panel works, the internal light comes on (door open, operation), the turntable spins, but nothing heats. I'm guessing magnatron, or the power to it, or ... control board, if that switches it on?
The fuse above the control panel is intact and working, I don't dare test the HV capacitor in there. But what's the most likely culprit? I've read the magnatrons don't go bad generally, and I imagine it would make a louder pop.
It was installed with the new townhome, so like most other builder-supplied appliances, it's nothing fancy. I've enjoyed replacing things here and there as they age, including the dishwasher (2010), disposer (2015), faucets (2015, 2016) with better components. This and the range are on the list. So short of rolling up sleeves and taking my life into my own hands (microwave ovens have some high voltage components, not a recommended repair for an amateur), is there an obvious component or voltage to check on the control board, or is it simpler to just replace? Anyone know what control boards for these cost?
Modem JVM1631BB, manufactured August 2001.