Instrument Lights Not Working

I searched previous threads for an answer, and didn't see anything so, here goes......

I just recently rebuilt my instrument panel using parts from two different panels. All of the gauges work, the high beam indicator works, the headlights work, the wipers work......but NONE of the instrument lights are working. The bulbs are all new, and the plugs have all of their contact points.

Before I rebuilt the panel I had at least one instrument light working, but now I have none.

I re-checked all of the fuses, and connections, but still nothing.

Any ideas?

Could the circuit boards be junk?

Does anyone re-build the circuit boards?

(I apologize if yoou've already read this somewhere else......)