The LED Driver board and adapter board are both back from the board shop.  I have not had a chance to try them out yet.  I don't expect too many issues with the adapter board -- other than the thermal issues, it is a straight forward design.  The driver board is more complicated and was designed to handle several different LED applications. 

Driver board

Here are some pictures and video of my custom LED backlight controller. The controller gives you easy IR control of LED fixtures like the Cyron Media Highlighter and IKEA Dioder. It replaces the OEM controller with a new controller that provides an IR interface and discrete control over the colors, effects, and power of the color bars.