Question about Zenith L15V26D 15 in. HDTV-Ready LCD Television

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Can not get tv stations above chanel 13

I suddenly can not get channels above 13-----my other TVs work fine-----what should I do

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Switch To CAtV, You have setting on Antenna

Posted on Dec 01, 2008

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What does RF CH mean?


What is the difference between a RF channel and a virtual channel? The RF channel is the channel that the TV station uses to broadcast its signal. Before the conversion to digital, TV stations were normally identified by their channel number, and most people knew that a particular network was on a specific TV channel. While analog broadcasting was being phased out and all TV stations were converting to digital broadcasting, it was necessary for the TV stations to continue to broadcast their analog signals on their original RF channels, and also broadcast their digital signals on a different RF channel. However, since the TV station used their broadcast channel as part of their identification, they wanted to keep using the same channel number. To allow this to happen, the new digital television broadcasting standards (ATSC) provided TV stations the ability to continue to use their original channel number and also tell the TV set to tune to the new RF broadcast channel when their virtual channel number was selected. The original channel number is called the virtual channel number, and it will be followed by a period and a second number (3.1, 7.1, etc.).
One of the benefits of converting to digital for the TV stations is that they now have the ability to transmit more than one program at the same time on the same RF channel. The number of additional channels they can broadcast is determined by the resolution of the program (SD vs. HD, text only, music only, etc.). The second number in their virtual channel number indicates that one of the additional programming sources from the same TV station is being viewed (10.2, 10.3, 10.4, etc.).
When selecting an antenna, it is important to understand the difference between the RF broadcast channel and the virtual channel. Antennas are designed to receive specific ranges of RF channels, and the antenna needs to be selected for the RF channel you wish to receive. TV stations broadcast in two broad frequency ranges, called VHF and UHF. RF channels 2 through 13 are considered VHF, and RF channels 14 through 51 are considered UHF. In order to pick up the channels, the antenna has to be designed for the correct frequency range. It is very common today to find that TV stations using virtual channels 2 through 13 are actually using RF broadcast channels in the UHF range. Although not as common, some TV stations using virtual channels 14 through 51 are actually transmitting in the VHF range. An antenna designed for only UHF channels will not work effectively for RF broadcast channels in the VHF range, and an antenna designed for only VHF channels will not work effectively for RF broadcast channels in the UHF range.

Apr 09, 2015 | Flat Panel Televisions

1 Answer

Emerson tv 32 in --the channel 7.1 ABC only has picture without sound.


Check the Chanel 7 broadcast signal on the other tv have sound,could caused by the tv broadcasting signal from the tv station itself.Check if ur tv have a function known as S.A.P. make sure it is off,could effected no tv audio problems,because the tv station in ur city or town don't broadcast in that signal frequencies.

Feb 24, 2013 | Emerson Flat Panel Televisions

1 Answer

Hi we have lost all channels of our hisence tv just blue screen saying no signal please help had channels yesterday


Nothing to worry, You change to AV mode to TV mode and wise verse,
If nothing happen then call the service center, It only two months old.

Jul 23, 2012 | Hisense LCD1504 15 in. Television

1 Answer

Cant change channels with remote or side of tv - sound works fine . stuck on espn - no other channels work (i quess being stuck on espn is fine but this is an office tv for thr girls while they are eating...


Your TV is most likely locked to that station because it doesn't have any other channels programmed in.

In the menu for the TV, run a channel scan. This will take probably 30-45 minutes for most TVs and will program the available channels into the TV so that they become available.

Mar 15, 2011 | Vizio VO47L 47 in. LCD TV

1 Answer

I have an electron TV that is set for 13 chanels, I want to reset it so I can use chanel up and down to the 60 chanels I have.


Try going to the SET UP option on your tv's MENU.
Look for the CHANNEL SET UP option.
Make sure the CABLE option is turned ON.
Let me know if that works.

Good luck.

Jan 20, 2011 | Flat Panel Televisions

3 Answers

I need a user manual for a Techwood LVD2263D flatscreen tv. I cannot install & re-tune to view TV channels


~

If you were to log on to the manufacturer's web site, I think you will be pleasantly surprised as usually one is able to download, by model number, Customer Instruction Manuals, list of Dealers, for spare parts and service and Installation Instructions as required.

Just Google the manufacturer's name and follow the links. Make certain you are directed to the manufacturer's web site as some search engines direct you to other sites and they charge for the information that is normally free of charge.

I hope this helps.

Dec 23, 2010 | Flat Panel Televisions

1 Answer

My TV Sharp 26 SB1 LCD PBS channel breaks up


Do any other OTA channels break up on this TV? Look through your setup options menu for a TV reset (memory or restore default or a similar command) . Do the reset and exit the menus (save the action on most TVs); then return and rescan the OTA channels.

On a different brand of TV this worked. The channel had broken up for several weeks; the reset was used when the channel finally became totally corrupted (no video on one sub-channel, no audio on the other).

Some tuners need a stronger signal to be stable; you may need an amplifier on your antenna.

I hope one of these ideas helps.

Cindy Wells

May 01, 2010 | Sharp Flat Panel Televisions

1 Answer

No sound on four channels while all other channels sound is fine.


You most likely have the SAP1.gif mode activated. Look for a button on your remote or an item in the on-screen menus of your television1.gif called MTS or SAP. You want to set this to "Main" "Normal" or "Stereo" (or even "Mono") mode to hear the regular television sound.

If it is in SAP (Secondary Audio Program) mode, as I believe yours is, you may hear no sound or a different audio program. Often this is a translation to another language, such as Spanish, and other times (notably with PBS stations) it is an unrelated audio (often music) feed. On some stations there may be no sound at all with the audio mode set to SAP.

Feb 14, 2008 | Sharp Aquos LC-13SH3U 13 in. EDTV-Ready...

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