We have a kitchen aid oven, model KEBC177KSS03. My wife was cooking a pizza, she saw smoke coming out from the control board. The oven the shut itself down. Door was locked and control board had no power.

I replaced the control board, but I still dont have any power to the control board. What I have done:
1. Measure the voltage between L1 (black) and Neutral: 120V
2. Measure the voltage between L2 (red) and neutral: 120V
3. Measure the voltage between L2 and L1: 240V
4. Measure the voltage and ohm of LIGHT TRANSFORMER: one (primary?) is 120V - 0 ohm; and one (secondary) is 0V - 4.7 Kohm. I'm not sure which one is primary, which one is secondary and the 4.7 Kohm eeems high .
5. Measure the voltage and ohm of POWER transformer: primary is 0V -37.1 ohm and secondary is 0V -0.4 ohm
6. I also checked the thermal fuse, the connectivity appears to be good

I'm not sure if anything wrong with the light transformer or power transformer. Has anyone ran into this problem? can you help? I'm trying to find the schematic diagram of KEBC177KSS03 and the results of components that can be tested at the control board, where can i find it?

Thank you so much for your help

Van