My friend really wanted to help with my light show this year, so I gave him a Lynx Express PCB plus all of the parts to put together for me, which would have saved me a lot of time. He made several mistakes, including soldering all of the optocouplers, the ST485BNs, and the H11AA1 directly to the board. I assume that any of those ICs could be damaged due to the heat of his soldering iron. I'm trying to figure out which I should attempt to replace.
Both the 3.3V and 5V lights come on OK. I am also able to connect to and program the PIC through the ICSP header.
When I power the board up, however, nothing happens, other than the 3.3V and 5V LEDs lighting up. Would the loss of any of those ICs in particular lead to this problem?