I guess I'll toss in here that mine has worked perfectly since i got it, so you don't see me posting about it...
Running v3 spdif input to either channels 5+6 or 7+8, all the channels going, extreme blazing summer festival heat, lines out to second decks, monitoring with headphones, etc.
Its a sweet unit and I've really grown to like the SD card thing now.
I do however consider it important to always run any device at its specified power requirements, which for this deck is 12V (I forget the Wattage/Amperage needs right now) so I use a batterygeek 10-14-88 when house power isn't available.