Replacing LED & Light Bulb Yamaha Receiver

I have basic knowledge to replace 8-12v bulbs in a receiver (Yamaha CR-840), so when I tested to see if there was complete circuit in the bulb, I accidentally touched a couple of wires, a big spark... and now none of the lights work! I must have shorted something.

I tested the led lights with a small battery, they are fine but do not light up through the receiver/ no voltage going to the led, and I've tested the 8-12v bulbs, and there is no current coming out of the wires at all, but the bulbs need to be replaced. Fuses have been checked and are fine. I'm assuming I blew something, and I have no idea. Any help would be appreciated! thanks, Dan