Question about RCA L37WD12 37 in. LCD HDTV

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Can't get the tv to the correct channel compatible with my cable box

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The TV should usually be set to channel 3 or 4, then auto program the TV with channel search while the cable box is on.

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Beach TV Repair

Posted on Jul 04, 2010

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Posted on Jan 02, 2017

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SOURCE: TV not finding Digital Channels from Cable Box

I just bought Sony LCD 46 inches, with model KDL 46 V 2500 about less than 9 months,now TV lost digital channels, I tried every thing to program it but it's not working, when I program it the screen come up and stay about 20 minutes for searching digital channels then disappeared.and always no digital found.I don't know what wrong?

Posted on Feb 07, 2008

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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.

Jun 25, 2014 | RCA 46 46LA45RQ LCD TV

1 Answer

I don't have a remote control for my RCA TV and it's on channel 2. It needs to be on channel 3 so that It's compatible with my cable box. How do I change the channel without a remote to channel 3. It


U should have a menu button on your tv.If so try to find the channel setup option if you find this you should b able to manually go through your channels to add & delete the channels you want.If not you will have to go out a buy a universal remote.Make sure that it is compatibl to your tv.They should be a list on the back of the remotes pack stating all the brands that the remote is compatible with.I think you should be able to get one for unde 5 dollars.in the pack it should have an instruction manual.some tvs u can set up very easily & some you might have to keep putting in different codes until it works.Hole this could be some help to you.Good luck.
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Apr 19, 2013 | Televison & Video

1 Answer

How do I see all my cable channels? i Have a 19" Curtis and it only goes up to channel 13 with auto channel check. I tried the source button, and i didn't see the "cable" selection. is...


Your TV may not be compatible. What is needed is a cable box, it handles all of the channels and the TV stays only on channel 3 or other input from the cable box.

Jun 20, 2011 | Curtis LCD2424A 24 in. LCD HDTV

2 Answers

Unable to view TV programming on TV, able to utilize set for viewing DVD/VCR movies. Cable company says their Cable Card is 'OK' and the TV needs updates (assume software) in order to work correctly with...


U get a channel numder and menu screen do show up?Not the tv,it the incomming broadcasting signal cable plug in or the cable box itself have problems.Tries unplug,replug the tv and the cable box back in like about an hour later.The tv will reset itself to the factory setting and the cable box should upgraded it softwares.Should work now.If have the same problems,tell the cable company change the cable box or check the incomming broadcasting cable wire with another tv,see the incomming broadcasting signal cable wire,with a new cable box,see if it work.

Oct 21, 2010 | Toshiba 46HM95 46" HDTV

1 Answer

My tv does not stay on channel 3,which is the channel it needs to be on to watch cable. the tv will start to make a clicking noise and then it jumps to channel 4. i have check all the connections 2 and...


That's weird...Check your cable box...I had a little switch for 3 or 4....I'm not talking about your selection on the TV...But the cable box itself....If it wants 4....Give it to it...lol..Just something to check..Good luck

Oct 27, 2017 | Emerson Televison & Video

2 Answers

No signal onthe screen


If you are connected to a high definition cable box or satellite tv box you would not need to turn to channel 3 on your television. The television would need to be in the right input either component or hdmi. If someone connected the tv to the cable box or satellite tv box with a coax cable like an antenna cable then the tv channels will be available on channel 3 as well but they will not display in high definition. You change channels with the cable box/satellite tv box remote control. If the above is not correct and you are only connected to an antenna cable and not to a cable box or satellite tv box you will need to complete a channel search from the tv menu. It sounds like you are using a cable box/satellite tv box and that the tv is on the wrong input. If the cable box/satellite tv box is not working (i.e. just a black screen) on your television than that is a different matter entirely.

May 10, 2010 | Samsung LE32R41BD 32 in. HD-Ready LCD...

4 Answers

Trying to set up Digital Labs 19''LCD TV/DVD combo and only gets limited cable channels (old tv on same cable gets lot more). Have completed auto scan and pick cable as reciever however only gets limited...


The remote control that came with my Digital Labs tv/dvd combo worked for about 2 seconds and never really worked correctly. Now, I'm trying to find a universal remote that will be compatible. Please help.

Dec 26, 2009 | Televison & Video

1 Answer

Cant figure out how to set TV to cable setting


The company's page for this set is here. There's a link toward the bottom to download the user's manual.

If I read the manual correctly, you're out of luck without an external tuner such as a cable box. This set was made for the European market and its tuning system isn't fully compatible with that used in the US. There's a "channel swap" function which lets you reassign the channels it finds to whatever channel number you want, and it's described in the manual. I assume that's to allow for the different frequency/channel number assignments in use in all the areas it tries to cover. The set's tuner just may not be able to pick up all the channels on your cable system. As long as it gets US channel 3 or 4 correctly, you can use the set with a cable box or video recorder that properly tunes the cable channels.

Apr 23, 2009 | Hitachi 46W500 46 in. TV/DVD Combo

1 Answer

How to tune to tv channels


There is a switch [tv-vcr] somewere in the front.When pressed to tv, you can change the channels FROM the vcr.You will need an "air wave" ANTENNA signal because the cable box individual channels cannot be seen when you place the switch to tv.Now if you have a cable box connected properly and turn that tv-vcr switch to vcr the individual CABLE BOX CHANNELS will show through the vcr.
p.s. There is a small switch (someware in the back of the vcr & the back of the cable box,dish box, etc., etc.) ch.3 or ch.4 and the VCR have to be on the same INPUT channel as the box.

Dec 09, 2008 | Televison & Video

1 Answer

Tv/vdr/cable box


Your hookup is correct- Your VCR needs to be tuned to channel 3 or 4, to match the cable box.

Also, the VCR channel output needs to be matched to the TV. If VCR menu options are displayed on the TV then this part is right. If not, then set either the VCR or TV to the correct channel.

May 11, 2008 | Sharp VC-A420U VHS VCR

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