'92 190E, no dash lights

[rickjordan]

I have a very odd light outage problem in my 190E. All and I mean all the lights on the dash went out. This is including the rear defroster switch light and the rear light switch light. The climate control panel and the window switches went out as well. Oddly the light for the gear selector is still on. I checked all the fuses and all is good. So at night, all I have is the aforementioned gear selector light and the radio (aftermarket).

My first thought is the main light switch, but need some confirmation from the gang here.

Any ideas?

Thanks