Originally Posted by JStew
Our XL4 has been working flawlessly for the past 4 months and this morning decided that tuner 4 would lay down and die on me. Has anyone else had this happen?
I went through the diagnostics and found tuners 0, 1 and 2 were all working with signal strengths of 92-98 though out the channel spectrum. Tuner 3 shows a constant signal strength of 0. In fact, it shows a dash mark where an actual strength number should be.
Are tuner issues common with the new XL4s? I've really enjoyed having 4 tuners. I haven't had to deal with any conflicts between family members!
Try to tune in four different channels once you reboot your TiVo. If it turns out that the fourth tuner still doesn't work, first check with your cable provider to see if the CableCARD has gone bad. It has happened, where a Multi-Stream CableCARD (which is 6 channel capable) stops working properly. Once you verify that the CableCARD is not the issue, then I would give TiVo a call for a repair for a possible tuner malfunction, and explain the situation to them. This kind of thing has happened to a friend of mine and it did, indeed, turn out to be the CableCARD malfunctioning.