Headlights work, nothing else

[zac]

‘79 K20, just downloaded Hatzie’s wiring diagrams. Don’t know what I’d do without him. While I’m going thru the diagrams maybe somebody wants to take a guess. At Home Depot all the lights were working. 10 minutes later at Lowe’s I only had headlights, brake lights and a dome light. Tail lights, license plate lights, clearance, marker and instrument lights out. The last one was weird, thought it had a different fuse. Got me thinking it could be the light switch, but it seems ok. The taillight fuse was blown and sort of melted. Looks like the terminals in the fuse block are burned.