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Samsung 450 Cable Box Interference Issues

by Moviezzz / May 17, 2009 12:04 PM PDT


I just got the Samsung 42 inch plasma, 450 model. Beautiful set. I'm very happy with it.

But, as stated with the 850 in that lengthy thread, it is also having interference issues with the cable box (Comcast HD, Motorola, dual tuner DVR). It isn't all the time. It is mainly in the On Demand section, it won't recognize the arrow buttons. Or, it won't recognize the ff buttons while in the DVR.

I've read in the other thread that Samsung will repair it. I've also read the repairs make the picture worse.

Is there a remote that will definitely fix this? I've heard the Harmony remote does. That might be a safer fix.

Love the set otherwise, but this is a very annoying issue. I didn't read about it until after getting the set. I was planning on getting another model, but saw the Samsung in the store and thought it had the nicest picture for the price.


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dvr issues
by CHUCKMALLEY / May 18, 2009 11:02 AM PDT

I have a 550 series,and I experience the same issue. I don't have Comcast,but I do have the Motorola DVR. I'm not sure it's our televisions. Unplug your cable box when you're not trying to watch or record something. Let it sit for a couple of minutes and plug it back in. This worked (for awhile)for me. Again,I don't see how it could be the television,but I could be wrong.

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It Is The TV
by Moviezzz / May 19, 2009 12:34 AM PDT
In reply to: dvr issues

Hi Chuck,

There is another thread here (with over 700 messages that you can read here: acknowledging that it is a problem with the Samsung Plasma TV's. Apparently, they give off interference that cause a problem with Motorola DVRs. The 850s seem to have the most problem, but I just noticed it in my 450. And if your 550 has the issue, it might be all models.

Samsung will fix it by installing a new board, but some haven't been happy with the fixes. Others have suggested work arounds by adding tape to the cable box, or getting a universal remote, or some other fix.

I love the TV and, I guess, I can live with the issue since it is off and on. But it is annoying.

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It Is The TV
by Samsung_HD_Tech Samsung staff / May 20, 2009 7:33 AM PDT
In reply to: It Is The TV

Moviezzz -

That issue was a result of LCD inverters, and the makeup of the plasma is quite different. This issue is only known, to the best of my knowledge, with LCD units. I don't see a lot of plasma issues at all experiencing issues with the DVR boxes. It may be possible that some of the boxes interfere, but I can't say conclusively that it's the fault of the television.

If you think it's the television, you can have it serviced, but I at this point, I don't have enough complaints on plasma to say it's an issue we can address. LCDs, yes. I'm not aware of plasmas.

I'd be curious if more people step forward - but then we can address the issue as being "known" or "likely". Does that make sense?


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by Moviezzz / May 20, 2009 8:26 AM PDT
In reply to: It Is The TV

Thanks for the info HD Tech. I wasn't aware that the 850 was an LCD.

I am seeing it on the plasma, but as I wrote, it really isn't all that often. Not enough to worry about a fix.

I love the TV otherwise!

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by Samsung_HD_Tech Samsung staff / May 20, 2009 10:54 AM PDT
In reply to: Thanks


Actually, there is a B850 in both the plasmas and LCDs, so it can get a little confusing - completely undrestandable.

If you change your mind, have it addressed within the first year, and warranty will cover the repairs. Registering your set on the website will also get you an extra 3 months (US customers) of warranty.


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Samsung plasma interference w/ Motorola cable box resolved
by ginknme / December 2, 2009 12:54 AM PST

Hi - We also purchased a Samsung 450 plasma and had issues w/ the remote only sporadically working (especially the arrow buttons). Samsung said they were unable to do anything to fix it. We were able to resolve the problem by having Charter replace the Motorola DVR with an older Moxi DVR (same features, just a little clunkier). I was told that they do not have these at our local office, a tech had to come to the house to "install" it (they did wave the $35 fee). It now works - hopefully this will help others too!

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