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New Contributor
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Unable to receive signal from coax
Hello anyone,
I have been running into a TV issue and I am hoping someone can help me. Up until last weekend, I was able to use my Cisco Explorer set top box (I'm not sure offhand which model it is, but I believe it's a 4652HD) using component outputs to my TV without any issues.
However, I moved the set top box to a new location which has been known to work before and I am now unable to receive any signal. The set top box takes forever to initiate the Rovi boot sequence, and when it does load I get nothing but a black screen with grey bars (and the guide shows no data - please see photos for both the grey screen and the no data guide). I called tech support on Sunday and after using a different coax cable, I was able to obtain signal and watch TV normally. Everything stopped working again yesterday after I reset my cable connection signal (due to the fact that I have a few channels including ABC that were not showing up - Temporarily Off Air message). I am now unable to regain programming.
From this forum I have found a way to access the system diagnostics, and under RF Network I see the following metrics:
Tuner: 171 MHz -20 dBmV, FDC: 74 MHz -39 dBmV, RDC: 13 MHz 37 dBmV
Should I call a Cox technician to come by and adjust my signal, or is there something I can fix to help with this?
Thanks in advance!
happeeekid
New Contributor
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Oops, forgot to attach the images - here we go.
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happeeekid
New Contributor
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happeeekid
New Contributor
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Domino
Valued Contributor III
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The "tuner" and FDC levels are so low, they are non-existent. You have no incoming signal. I'd replace ALL coaxial cabling leading to that box (in that location), and bypass all splitters. Once you re-gain the signal, you can put NEW splitters in. Is there any in-wall wiring involved? If so, bypassing it temporarily would tell you that if it's bad or good. It might be simpler if a GOOD Cox tech checked the wiring, but it will cost $$.
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ColleenD
+2 more
Moderator
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When you say the new location where you moved the box is known to work before, how long ago was that? The images you shared are typical of what you might see if the box is not receiving the signal it needs. I would suggest moving the box back to where you originally had it connected and if it works fine there, then there is something going on at the outlet you tried to move to or the coaxial wire between the outlet and the box. If you are unable to replace the line between the box and wall, or that does not correct the issue, you'd need to have a technician visit your home. The fix may require this other outlet to be repaired or replaced. The technician would be able to best determine what needs to be done.
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happeeekid
New Contributor
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Thanks for the replies everyone. I originally had the set top box in my family room, and had zero issues there for a couple of weeks. Then, over this past weekend, I moved it to the living room and that is when everything started to happen.
I have since taken the box back to its original location, and everything is working. I use the same coax cable to connect the wall to the set top box, so I can rule out the box and the cable being faulty.
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Domino
Valued Contributor III
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happeeekid
New Contributor
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Correct, that has crossed my mind which is why I came to the forum to see if there's anything I can try before I call a Cox Tech to come by.
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ColleenD
+2 more
Moderator
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Let me know if you decide you want a technician to come and need help getting the appointment scheduled.
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