# Errata ## Output LUT *Problem*:Combination BA is not possible on the output drivers, will be BB instead. *Solution*: Cut U7 pin 12 (B), connect to 13 (A) for the upper LUT. Leave the lower LUT as is. This is not a 100 % solution, but acceptable for the first prototype. For more information, see Issue [#12](https://git.notsyncing.net:8080/electronics/ttl-fpga/issues/12).