Kenmore/Electrolux microwave 790.80349310 display flashes every five seconds or so

[MKeating42]

Hi all:

I'm having trouble with a Kenmore (Electrolux) microwave. Model # 790.80349310  . 

The display flickers on for a split second, then goes dark. Buttons don't work, light in the cabinet doesn't work, turntable won't work, no heat.

I have been following the troubleshooting flowchart, but I am not sure where the Low Voltage Transformer terminals are for this model.  I have tested the three door switches and the fuse. They're all good. 

 

Thanks is advance

[Vance R]

The low voltage transformer is on the control board. From your description the power supply on the board could be weak.