I feel a little stupid and mad about a mistake I just made on a project of mine. But I am wondering if anyone knows how to fix it. This is mostly directed at dragorn, because he told me he's got some SMT knowhow.
Some background: A month ago I fried a 16 pin SMT motor driver chip on a pcb I bought. The pcb is supposed to handle a motor, a heater element, and temperature feedback from a thermocouple. The mini potentiometer was adjusted too high, which the instructions I was following listed as a "step 10: oh, and if you plug it in and the board fries in step 5, here's why". I was pretty sure it was dead, so I bought a new board ($45).
Today, I started to test with the new board. I turned the pot down, and hooked up the motor. It worked as expected this time. I moved on to the heater element and plugged that in. My software had a 'turn heater on' button, next to a 'ramp' button that I notice after it was too late. (the instructions for this project are terrifyingly disorganized so there isn't much for directions). Now a different chip fried, looks like a power transistor, 3 pins. Now it's shorted, and the light indicating that it's on or off is always lit.
What do you think? Salvigable maybe?