smoothie board pins not working

[Athul]

Hi

                        Two output pins are not working in my smoothie board (pin 1.31 and 1.22). I was using it to make TL active low. 1.31 was connected via a logic level converter to TL. It was working fine but today when I checked it it wasn't. So i changed pin to 1.22 and checked it(1.22!^ 3.3V with out any command) and connected directly to TL. but no laser produced so I checked again But this time there was no voltage.
Any idea what could've caused the problem?

Now I'm using 1.23 through LLC and it's working (for now)