Question about Proscan PS27108 TV

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Hi. TV works with dvd player. We have coaxial cable connected directly from Comcast. When we want watch cable the picture is ok some of the time but much of the time the sound and picture quality gets worse until there is no picture or sound. Sometimes the picture and sound will come back after a few minutes. Sometimes if we tap or wack side of tv the picture and sound will come back. When this is occuring most of the time the quality of the picture and sound will vary on different channels. Almost no picture on one channel where another channel you have a picture and sound.

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  • Travis Layman May 15, 2010

    Thanks for the help. We will give it a try.

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  • Proscan Master
  • 19,396 Answers

Hi.

The problem is usually with Comcast connection. Pixelation and bad or freezing picure are caused by bad cable signal.

All you can do as user is replacing the coax cable from the wall box or splitter. If you use a Comcast receiver box, also replace the video cable from box to TV, and eventually test the box on a different video connection.

If that does not fix the problem you will need to contact Comcast, as the fault is usually with cable lines or box(when present), and definitively it is not caused by a fault on your TV.

Here contact page: Contact Comcast | Customer Service.

Regards.

Ginko.

Posted on May 15, 2010

  • Travis Layman May 15, 2010

    Thanks. I should have also added that the same coaxial cable plugged into another tv works perfectly. I read somewhere that the rf component can go bad and that you can route the cable through a vcr and it will work, but we don't have a vcr. Wondering if one of the dvd/vcr recorders would work because they have similar coaxial input and outputs like vcrs I think.

  • Ginko
    Ginko May 15, 2010

    Hi.

    The RF connector is part of tuner board on your TV.

    If the signal is delivered tot TV through a regular coax antenna cable, then you can use any VCR or DVD , then route connection to TV.In this case there will be a receiver in the middle.

    If the TV uses direct RF (coax cable) connection, like in your case, instead of using a VCR or a DVD, you will need to use a device with integrated cable tuner. In this case, rather than using a VCR, better using a Comcast cable receiver box.

    If your VCR has RF connection, you can use VCR connected to cable, then run component, AV or similar connection to TV.

    As said, a good thing to do is also contacting Comcast. They can also tell you conditions to get a receiver box or to upgrade to HDTV.


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