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CableCARD & TiVo Issue - HELP

JackSpadesSI

Senior member
I have a TiVo Premiere XL (Series 4) with a Multi-Stream CableCARD from Charter Communications (my cable provider). Several months ago, Charter Communications began to use Switched Digital Video (SDV), so I was provided with an SDV tuning adapter.

For over a month now my cable service has been hit-or-miss on my TiVo-equipped TV. Other Charter Communications services/devices are unaffected: two other TVs with generic DVR boxes (which don't use a CableCARD because they are from Charter Communications), a TV with cable but not cable box, high-speed cable internet, and VOIP phone service. Therefore, the issue must lie either with the CableCARD or the TiVo.

Symptoms: channels completely missing, other channels with significant digital distortion.

Attempted solutions so far: replaced CableCARD twice, replaced SDV tuning adapter, and requested dozens of "CableCARD pairing hits" from Charter Communications. The CableCARD pairing hits (which I hear are stronger than a pairing hit for a generic DVR box) seem to help somewhat, but the problem either comes back within a week or never fully fixes in the first place.

I'm desperate for a solution. Charter Communications technicians (either tech support over the phone, or those in person during a service visit) are clueless and incompetent - partly due to their lack of familiarity with CableCARDs. Please offer any help you can, because I'm going crazy!

Two questions:

- How do I fix this problem?

- Is it true that multiple, repeated CableCARD pairing hits sent by Charter Communications can damage the CableCARD or TiVo devices?
 
Is it true that multiple, repeated CableCARD pairing hits sent by Charter Communications can damage the CableCARD or TiVo devices?

i find this to be extremely unlikely.

CableCARD pairing hits (which I hear are stronger than a pairing hit for a generic DVR box)
i find this to be nonsense, and a continuation of the mythical black box zappers.

i ordered a cablecard and specifically asked for an M card, not a tivo card. maybe you got the wrong one? technically, the most likely problem is your internal wiring. a tech should verify levels and error rates at the outlet.
 
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There are S cards which TiVo will support two of if an M card isn't available. I assume that's what he was referring to.
 
The TiVo Premiere only has one slot - it requires a Multi-Stream CableCARD. That is what I have. Therefore, that is not the issue.

Anyone have any help to offer for the actual issue?
 
I also struggled with several install attempts by Comcast for a CableCard in my Tivo XL. Several things I learned - you need a M card - multi-stream. The digital signal matters a lot, and you can access that via the normal Tivo menus. If the signal is too weak or too strong, you will get image and/or sound breakup or missing channels. The cable companies are required by law to supply you with a working solution. In my case, the CableCard works for most of my channels, but some HD channels have significant image breakup. I live with it. I got tired of dealing with the installers.
 
Several things I learned - you need a M card - multi-stream.

I have had an Multi-Stream (M) CableCARD since day one.

The digital signal matters a lot, and you can access that via the normal Tivo menus. If the signal is too weak or too strong, you will get image and/or sound breakup or missing channels.

Too strong is a problem? So 100 isn’t optimum? Of my channels that work, they were between 28 and 56.
 
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