Does a new cd transport require break-in time?

Anything with moving parts made by man requires some time for it to 'break in'.  

Check the fuse in the Oppo..

The Oppo is now able to turn on.  The problem had something to to with the power cord. .(too complicated to go into now.)

However, I’m not getting any sound from the Oppo or the Cambridge transports at this point.  The problem is obviously in the Gungnir DAT which is not working at all, regardless of what inputs I use.
I’ll have to return it.
It’s certainly caused me enough aggravation.

@ rvpiano ,

Did you make sure you set the digital input on the DAC to the correct digital input?
Last night you said the optical cable was working. That would indicate, last night, you had the input set to the toslink cable optical input. Using the toslink, optical cable, make sure you have both ends plugged in all the way and then make sure the digital input on the DAC is set to toslink. An LED light should light up on the front panel indicating the optical input has been selected.

Page 4 of 8
http://www.schiit.com/public/upload/PDF/gungnir_owners_manual_2_1.pdf

Also, you may have already tried it, did you try unplugging the DAC for a few minutes and then plug it back in?

If what jea48 suggests doesn’t fix anything, one thing you could do is connect the digital out from CXC to digital input of the Oppo and use Oppo as a “DAC”.  This would at least confirm that CXC is working properly.