Its just a simple consumer home DAT player/recorder. I have the A-6 which I think is same, just older. I have no idea how old they are, but I've had mine for about 5 years now and it works fine. I use mine to transfer and unpack my dats.
I'm sure prodigital will fix it.
Need any more info?
EDIT: from Dat-Heads:
"semi-pro" machine, has scms, records from analog at 48, 44.1, and 32 khz. Claimed to have higher quality transport, D/A, and A/D converters than consumer decks.