Fix or replace Accuphase DC 91 DAC?

I agree and I spent time today swapping cards in the unit and seem to have determined (as George suggested) that it most likely is a defective BB PCM63 chip. 

Thanks for the response!

Hey George,

Thank you for that post and information.

I’m not much of a tech at all but was able to swap cards around to narrow down the problem to one of the cards that has 8x BB63P chips.

I see the chips are available for sale on Ebay but don’t know if one is bad or even if an other component on the board is causing the problem.

Do you or anyone reading this have suggestions as to the next step? I do know someone who has the ability to simply swap out chips but don’t think they would be able to determine which might be the culprit.

But bottom line, I am relieved to have isolated the problem and the idea of packing and shipping this unit to California for $1500 plus shipping was not something I was looking forward to!

Thanks again!

haha..thanks George!

If I hit the lottery, the Accuphase is yours!

Meanwhile, I have no idea but will start to look for a replacement card, which I doubt I find very easily.

Who fixes this stuff anymore? I'll start a thread!

thanks again!

"That will be like finding rocking horse s**t!"

lol true of course...

I'll let you know (about lottery!)

It very well could be. In the meantime, I am expecting a Brooklyn DAC..But...interestingly, I got my hands on an Arcam D33 and it sounds amazing.

The pressure is off now and all I have to do is find some strong packing material and get the DC91 repaired.

It will be interesting to compare it to the Arcam!