This is a general guide video on how my friend John D. repaired my MOTU Traveler Audio Interface that had a faulty Firewire Comms port, by replacing the integrated circuit TSB41AB2 by Texas Instruments.
A special thanks to john for giving up his precious time to fix my gear.
The spare part was purchased from www.x-on.com.au, but other component suppliers might have them in stock too.