MF Tri Vista 21 channel dead


Hello everyone. I have the Tri Vista 21 DAC and the right channel is dead. I swapped out the IC to the other side to eliminate the other components as being the culprit. The problem switched to the other side. Can someone provide schematics. MF does not list any USA distributors, and I certainly am not shipping overseas.

Any input as to what to look for regarding the lost right channel?

Thanks,

MAK
racerxnet

Showing 2 responses by racerxnet

I replaced the (4) 5703 tubes in the DAC and the problem has been resolved. The glass was cracked on 1 tube taking out the channel. A bit time consuming, but fairly easy.

MAK
Cost was $70.00 for the tubes from SND Tube sales. 636-939-9190. Raytheon 5703 tubes