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Have a hd65w20 tv that is scanning thru the input channels on its own what is causing this?

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  • RCA Master
  • 8,617 Answers

The small signal board is the usual cause of that. You can get a replacement small signal board from www.tvrepairworld.com

Posted on Aug 04, 2010

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NTD-1356 Auto Channel Scan not finding channels


Cable TV comes from the receiver to the monitor (ntd 1356) thru a cable the ntd 1356 tuner needs the external antenna to be installed to work
Check the inputs for external signals

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I run the auto scan and it is picking up 0 channels and say to please run auto scan


Where is your antenna hooked up? Thru a cable box? Direct to tv? Completely describe setup, maybe post photos

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My tv doesnt let me do go to the channel button to do an auto scan


Are you using cable, satellite thru video or HDMI input? Switch to tv cable/antenna input.

Feb 06, 2015 | Televison & Video

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How do I program my RCA LED48G45RQ HDMI to digital channels


Several things to check. First go in the menu where u are doing the channel scan and see if there is a separate line that says digital and if so select it so it can add those channels. Next look also on the remote and see if there is a button that says ANT or Input and press it to see if selects the digital side. Next see how u are hooking up the set from either cable, SAT, Antenna, etc, and are u going thru the antenna connection/the screw on cable input. Cause if going thru hdmi or any other input will not allow u to scan channels. Next the tv may not have a digital tuner in which some new sets don't, look in owners manual and read on channel programming and it should tell u. Maybe something here will help.

Dec 09, 2014 | RCA Televison & Video

1 Answer

Televison station won't scan


If you are receiving a "No Signal" error message, verify that:
  1. All of the cables physically connected to the TV and the input device are secure.
  2. The input device is turned on.
Your TV needs to scan for channels before it can show programming from an antenna, from cable TV when the cable comes directly from the wall (no cable box), or from a cable or satellite box connected to the TV with a coaxial (RF) cable. Do not scan for channels if you have a cable or satellite box connected using AV (Composite), Component, or HDMI cables. The box selects the channel, not the tuner inside your television. If you are not using the "TV" input, press the INPUT button on your remote until the correct input mode is selected.
To perform a channel scan using the coaxial input:
  1. Press the INPUT button on your remote to view your current input source. The TV (coaxial cable) input must be selected. This may appear as "TV," "ANT," or the channel and call letters of a station.
  2. If the TV input is not selected, press INPUT until the TV input mode is selected.
  3. Open the on-screen menu and select TV or Tuner option. (This varies by model.)
  4. Highlight Tuner Mode and select the correct option:
    • Antenna-over-the air signals from an antenna
    • Cable-direct from the wall cable TV, or a cable or satellite box connected to the TV with coaxial cable
  5. Select Auto Search or Auto Channel Scan. (This varies by model.)
  6. When the search reaches 100% complete, exit to the menu.
  7. Check the available channels:
    • Antenna or direct-from-wall cable-Press the Channel Up and Channel Down buttons on your VIZIO TV remote to view the available channels.
    • Cable or satellite box- Will return only one channel. Use the cable or satellite remote's Channel Up and Channel Down buttons.
If this does not resolve the issue, power cycle the TV and then re-run the channel scan:
  1. Turn off the TV.
  2. Unplug the TV from the electrical outlet.
  3. While the TV is unplugged from the wall, press and hold the Power button on the TV for 30 seconds.
  4. Release the power button.
  5. Plug the TV back into the electrical outlet.
  6. Turn on the TV.
Note: There is also an option to reset the TV to the factory default settings. This option is in either the SETUP or SYSTEM section of the on-screen menu. The option may be "Reset all settings", "System Reset," or "Reset & Admin." Consult your TV's user manual for the location and steps for resetting your model.
  1. Remove the coaxial cable from the DTV/TV connector on the back of your television and perform a channel scan to clear the existing channels. See the procedure above. This should not find any channels.
  2. Re-attach the coaxial cable to the DTV/TV connector and perform a new channel scan.
This video shows troubleshooting steps to use when a "No signal" message appears.

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Were can I turn on the AV channel or search for it if I don't have a remote and there's no AV button on the TV. It's a LG Flatron Model no 21FG1AG-TH.


Is there an input button on the tv? If so push this button a few times and you should see the tv scroll thru the input selections. You may have to scan from the main menu to have the tv find the AV input is hooked up.

Thanks,
Michael

Mar 31, 2011 | Televison & Video

1 Answer

There does not seem to be any channels being scanned


make sure you scan both over the air and thru the cable. the antena MUST BE CONNECTED and so does a coax cable from the wall for local non over the air channels let me know if that helped

Mar 17, 2011 | Hauppauge WinTV-HVR-950Q TV Input

1 Answer

Won't even feed into tv anymore....


If you are using the RF input are you sure the channel on the TV did not change? Make sure the TV is set on Channel 3 (or 4) or use the component (red-white-yellow) outputs if your TV has component inputs available.

Jul 01, 2009 | Apex Digital HT-150 System

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How to set the telelvision to use a dvd,


when you ran the autoprogramming it scanned all the channels you are receiving.the dvd is probably plugged into a line or aux input on back of your tv.look for a input or source button on the remote. some tv's have more then 1 input source so be sure to scan thru all input choices.also if it is a dvd/vcr combo & if there is a coax out connection to your tv coax/rf input the tv and/or cable box should be on channel 3
hope this helps
w.g

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Game console


Should be yellow,red and white a / v inputs on front of tv =
hook-up there and select that input number.........T.

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