A/C question

I swear I have tried to read every post on TW about air conditioning before posting this, but I finally give up. I need some help.

I have an 06 Tacoma TRD 4 door short box. I got a wild hair up my ass (after reading the lighting posts) to change all my interior lighting from the amber glow of death over to nice blue hue’ed LED. So, naturally, I start taking crap apart and throwing tons of heat to delicate electronics not really knowing 100% what I’m doing. When I started, I was terrible at soldering and had cheap equipment. This caused me to burn some pads off the board. Well, I saved my ass and fixed them. I’ve had the board in and out 20 times because each time one thing won’t be working and it drives me nuts. I’ve had it in multiple times where all circuitry was functioning. I’ve traced damn near every lead, pad, and solder joint on there. I’m relatively certain they’re all still good, although I wouldn’t testify in court to the fact.

Currently, I have it installed and the lights work as they should when they should. This is where the problem starts, the other night it was working perfectly fine after just finishing the painting of the dials. Then, I wake up in the morning and my A/C light no longer comes on. So, I took it out to test the LED. It was still good, so I put it back together. Today, I’m driving down the road and the A/C is no longer blowing cold. Mind you, it was an arctic blast before all this. Then, it starts smelling kinda like a sumo wrestler took a dump on a stack of burning tires. Then, luke warm air. I know what you’re thinking, “this son of a bitch didn’t read the forums because there’s 5 posts about this exact thing”. Here’s the kicker, if I put it in defrost mode that also includes your feet, the son of a bitch blows cold again.

So, if anyone is still reading after that long winded explanation, do you have any suggestions? You don’t have to spoon feed me the answer. Just tell me where to start. At this point, I don’t know. I’m certainly not buying a new OEM A/C control board for ~$650’ish. I’ll literally make one before that shit happens. I’ve studied the diagram and the actual part enough for that not to be an egregious statement.

Ok, gents. Not everyone all at once. Thank you and good day.