While I cannot give out a lot of information on this unit, I will tell you that the drive is now repairable through OSC. They recently announced an exchange policy which reduces the price on a new drive significantly when the faulty unit is returned upon the receipt of the new unit.
Sorry I cannot help more, but with Otis equipment I am limited on what knowledge I can assist with. But as far as the drive goes, I would recommend purchasing a replacement, as I have not been successful in procuring an HVIB board from them; only whole units.
Good luck.
