This morning my right channel went completely out of service. I cant hear anything but some static noise. I've changed the tubes and the RCA cables which comes from the DAC, but none of these has solved the problem. The same situations occurs on the preamp output and on the headphone jack as well. If I connect the DAC directly into my amplifier, both channels are working. According tho my knowledge, I have ruled out every possible steps, but I'm wondering if somebody can suggest me some workaround to fix this annoying issue. My DV 336SE is pretty new. It arrived 3 months ago, and worked flawlessly until now. Thanks in advance for any help or suggestion!