im having issues with my bulbs...here's the story.

basically my cluster guages and bulbs and needles were all out, so i went to a junkyard and got another one, that one ended up having all the needles working, and all the guages working. so i ordered LED bulbs from superbrightleds, and i have 4 bulbs that dont work, no matter what location, on either cluster. one of the led's emitter fell off, so its shining purple right now, i emailed them and they said they would replace it. but im a little confused on what could be the issue with the same location bulbs not working. i know they are polarity sensitive, but no matter what position they are in, the same 4 outta 8 bulbs dont work in that specific location. i swapped the big circuit card in the back, no joy, i swapped the ribbon that the bulbs get the power from, still same results....what could it be?

 

Nobody?..............