Question about Zenith H20H52DT TV

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Tuner is out. Menu works, but TV has a snowy picture.

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  • stolley Jul 30, 2009

    I am on a cable TV signal. The TV has a snowy picture. I can get the menu and channel numbers, but no stations. This is the 3rd or 4th TV to do this. I am looking for a common problem. Bad solder joints, maybe.

  • stolley Jul 30, 2009

    I am on a cable TV signal. The TV has a snowy picture. I can get the menu and channel numbers, but no stations. This is the 3rd or 4th TV to do this. I am looking for a common problem. Bad solder joints, maybe.

  • Adnan Bhatti
    Adnan Bhatti May 11, 2010

    Do you have a terrestrial antenna or cable subscription?

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  • Master
  • 1,632 Answers

This is the best solution for your problem as a 40 year experience with wires etc. Go to the source of your cable signal connector . Open it and clean the terminals with emery paper , sand the end of the cable shiny clean from corrosion , get a new barrel connectors with gold terminals if possible lengthen the ends of the cable , insert and tighten good, use thick rg-16 or rg 40 cable with good insulation ends crimped professionally with a crimpier or buy ready made , not from dollar store. Get a gold plated professional splitter if you need one or two , it will cost about 15 or more each . Make the cable runs as short as possible, using the thick good cables. If needed get a signal magnifier. From radio shack or the source etc. Connect them good and tight . Ground the splitters . Problem solved , you will get crystal clear channel 2 to 7 including 3 and 4 . Isolate the TV cable from other cables and power wires. Vitally

Posted on Apr 15, 2010

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MY SAMSUNG LCD TV MODEL LNS4695DX HAS A SNOWY PICTURE CAN SEE PICTURE BUT IS VERY SNOWY I TRIED ALL INPUTS WITH CABLE DVD AND A GAME SYSTEM BUT NOTHING CHANGES AND THE WIERD PART IS WHEN I HIT THE MENU...


The OSD comes from a different area---if on all inputs it is on a board that processes all signal in the set--tuner,AV etc

You might want to Google the model number with "parts" to come up with a list of the boards and prices if possible for them.

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You must apply a clean signal and see that the picture is clean if not the TV tuner section is faulty.
If there is snowy picture then the input RF section , the TUNER section and the VIF/SIF section must be checked.
There is not much in the menu than to use a fine tuning to have a clean picture.Otherwise the tuner is a suspect.

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Hello frogman,

The freezing of the picture denotes a loss of signal on a digital (Having a ATSC tuner) TV. If your TV is not digital (Having a ATSC tuner) then it is the device that you have connected to the TV (Cable Set-top Box, DTV Tuner, etc). In the likelihood that it is your TV I would suggest getting a better antenna first if that does not fix the problem you may have a tuner problem. However lets not look at it that way first. What we need to do is to determine if it is the TV of whatever you have connected to the TV.
First unhook the connection you have from the cable to your F connector of the TV (you should see snow or a blank screen) connect a antenna to the F connector of the TV, do you see a snowy picture or a clear sharp picture (snowy= NTSC tuner, clear-sharp= ATSC tuner). If the tuner is NTSC then check you cable device and the connection between your TV and the device and the cabling between the device and the wall. If the Tuner is ATSC then you will have to check all of your connections, and finally if the tuner is bad it has to be replaced by a qualified Tv repair shop.

I hope this helps,

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sounds like poor solder on the ground conections of the tuner, depending on the age of the TV frostman

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you have broken solder connections inside the tuner, you`ll need a tech as it is soldered in and once removed the board inside will have to be re-soldered. An alternative would be to use the AV outputs of your cable box or vcr to the AV input of your tv, this bypasses the tuner circuit, you will of course have to go into the tv`s menu and switch to AV 1 or AV 2 whichever input you use, good luck& Happy Holidays

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