I have a DMX3510-M pvr and just recently some recordings start out blank, even if you're resuming. There is sound but a black picture. When you turn off the recording then back on, it's fine. Just wondering what the problem is.
My first thought is that the video tuner in the PVR needs a quick reset.
Could you pull the power cord to the PVR for 10 seconds? Then do a new test recording and see if the same thing happens. If it does, let us know and we can send you a private message so that we can send through a full-blown reset.
Retrieving data ...