Teac UD-503 Volume problem


Hi everyone. I have a teac ud-503 for years. Recently the volume will starting to drop and back to normal randomly after 15-20 mins use. This dac has a pre amp section and can be set to fix or variable. But no matter what setting it is, same thing happened after 15-20 mins use, no no matter using xlr or rca out put.  Any idea about it?

Thanks for your time

rodar93

Showing 5 responses by rodar93

@oddiofyl yes, fix mode, variable mode, +6 db mode, whatever...no matter where the volume set, it just happened. Opened and checked, no loose connection or soldering.

@srinisr thanks, will check it out.

@oddiofyl thanks, i have tried to reset and unplug even overnight. But the same problem comes after using for a while, never happened when it just powered on. Totally no clue

@oddiofyl nope, but no matter what souce, (cd, computer, streamer, tv) using different conncetor (spdif, coax, usb), same thing happened