Mike,
Kudo's for coming up with 2008 IR Board #2 design. Further recommendation deals with JP1. Since the standard method of hooking up is to use 3 wire, pwm cables, I recommend modifying JP1 to become 4 sets of 3 wires to mate with the pwm cables for the 4 signal input/outputs. The 10 pin JP1 would then become a 3 column by 4 rows or 12 pin connector.
Since your design features a reverse polarity diode without a LDO regulator, I would propose moving the power/ground
input to a separate connector (JP3?). I added this in conjunction with one of those 2 pin terminal blocks to provide power
to one of the KOP IR boards. I am assuming a connection to the 12V fuse panel in this configuration.
I would also consider, if space permits, having open solder pads connected to the 12 JP1 connections to allow soldering a pwm wire with it's one connector cut off. This would eliminate the possibility of a pwm connector coming lose for team's that use the solder route.
Can you also space the 78L05 TO-92 pads to be TO-220 pad spacing? This would facilitate replacement of the 78L05 with 7805 TO-220 parts. I needed help from Frank Leritz, HDC-Troy, to swap out the part because the TO-92 pads were so tightly spaced.
