Question about Sharp 32U-F810 32" TV

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Automatic channel changing

My tv just started doing this. the channel changes to "input 2" auto matically then back to the previous channel and back and forth

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  • Anonymous Feb 13, 2008

    This exact same thing has been happening to us. I have tried unplugging it and plugging it back in to reset it but it continues to happen.



2 Answers

We had the exact same thing happening with our same TV. We tried many things to fix it ourselves, but nothing worked. We finally broke down and took it to a repair shop. They were able to fix it within 24 hours and for $75. It has something to do with a short behind the input jacks on the front of the televsion. Hope that helps

Posted on Nov 01, 2007

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  • 556 Answers

1 either your remote button has pressed or some dust in contact. 2 dust near front panel buttons. 3 problem in sytem control section. 4 memory ic .

Posted on Sep 19, 2007


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I just got a new 26" Westinghouse TV, and the screen says "No Channels in List" and when I search for channels, it is not finding any.

What type of antenna are you using? Or what is your source for accessing channels? (i.e. - are you connecting to a cable tv service box or are you using a receiver ect.) Make sure that your source is connected to the input method that you are currently using on the tv.

There are many input methods to choose from in the settings of the tv. They are generally called antenna 1, antenna 2, cable, aux, hdmi - and a few other names. There should be a button on your remote to change them. The function is usually called "source" or "input". Press that button to change the input method until you get a picture on the tv or pick up some sort of reception. when you have the tv set on the same method of input that your antenna source is connected to, you will get channel reception or some sort of picture. Thats when you use the menu functions to auto find channels for you and let it go through its checking scan to report how many it has picked up.

If its running the scan for channels and not locating any stations, and the picture is either scrambled with the white noise sound tv's make when off channel or if its just single color screen without any sound - then you know the antenna input method you have chosen on the back of the tv is not the current method set in the settings under the menu key.

Most of the time the inputs are labeled on the back. If you look under the cable antenna connection, it should say "cable" somewhere in small print - or "antenna 1 input", antenna 2 ect. Look on the back of the tv. If you are using RCA jacks that are labeled right and left for sound and a third connector for video ect, look for the name of the input method of those three connections on the back of the tv. It should be marked as input - aux 1 ect. Then just change the source chosen in the tv to match it and have it auto program your channels.

Jul 06, 2011 | Televison & Video

1 Answer

How do I retune my Panasonic Viera TV?

To tune your Panasonic Plasma to on air TV channels do the following:

Connect the antenna connection to its antenna in at the back panel.

Automatically searches and adds available channels to the memory.

Select "ANT in"

Select Cable or Antenna Select "Auto"
Select a scanning mode

Auto channel setup
Select "Auto program"
Select "ANT in"
Select "Auto"
Select scanning mode (ALL channels/Analog only/Digital only

Start scanning the channels

Available channels (analog/digital) are automatically set.

All channels: Scans digital and analog channels

Analog only: Scans Analog channels only
Digital only: Scans Digital channels only
Confirm registered channels

If OK is not pressed after selecting "Apply", the channels will not be saved.

The channel will be saved when no operation is performed for 60 seconds and

the "Manual program" menu will also exit automatically.
If you perform scanning more than twice, previously saved channels are erased.

About broadcasting systems

Analog (NTSC): Conventional broadcasting

Digital (ATSC): New programming that allows you to view more channels
featuring high-quality video and sound
[Use "UP ' DOWN ' RIGHT ' LEFT] AND 'OK"] keys to selcet and proceed.

Mar 07, 2011 | Panasonic Viera TH-42PZ80U Plasma TV

2 Answers

In just bought new Toshiba regza 40" Lcd tv and auto tuned it, but the picture is terible , snowy and colours are not good, what to do...

First of all reset the TV. for that

press and hold the POWER button
on the TV control panel for 5 or more seconds to reset the TV.
Then connect the TV tt any source like outdoor areiel or cable box etc, select the appropriate input, and retune the TV. First of all, connect it to an external antenna, and set it to autotune.

You must configure the ANT/CABLE input source before

programming channels (-left-hand column).

If the ANT/CABLE input signal type is set to Cable, the

automatic channel programming process erases channels

that were previously programmed into the TV's memory.

If the ANT/CABLE input signal type is set to Antenna, the

automatic channel programming process adds newly found

channels to the existing set of programmed channels (and

does NOT erase channels that were previously

programmed into the TV's memory.) To remove an Antenna

source channel from the memory, you must manually delete


To tune the TV to a channel not programmed in the channel

memory, you must use the Channel Number buttons on the

remote control.

Programming channels when the ANT/CABLE input is

configured for Cable will take substantially longer than when

the antenna input is configured for Antenna. This is normal;

however, once channel programming is finished, you should

not have to repeat the programming process again unless
your Cable TV service lineup changes significantly.
Find out the received channels are clear or not. If they are clear, your TV is perfect, and the input device you connects ot the TV is faulty. OK.

Feb 16, 2011 | Toshiba REGZA 42 in. Flat-Panel LCD HDTV

1 Answer

Whats the process to change RF to channel 4?

1 Press POWER to turn the power off.
2 Press TV/VCR, current VCR Output Channel will appear on the LCD display.
3 Each time TV/VCR is pressed for 2 seconds, the LCD display changes as follow

clock press tv/vcr RF3 2 secondes later RF4.

• VCR Output Channel is automatically set during EZ Set Up.
1. If Channel 3 (or 4) is an active broadcast channel in your area, the Channel 4 (or 3) will be set.
2. If both channel are the active channel or none active channel, the VCR Output Channel will be set to Channel 3.
• Cancelled the EZ Set Up by pressing POWER during EZ Set Up before setting the Output Channel.
• VCR Output Channel will not change to previous VCR Output Channel if TV/VCR is pressed continuosly for more than 2

May 27, 2010 | Sharp VC-H965U VHS VCR

1 Answer

Need an Input to hook up Dish network/xbox 360

Sometimes its tricky with those buttons on the front but with most tv's you can get to the menu and change inputs.
One you figure that out you will want to go back in and add that input as a channel in the add/remove channel section then you will be able to get to that input by just changing the channel down below 2
( another way to do this would be to run the auto program with the devices on and see if it adds them that way)

Sep 18, 2009 | Emerson EWF2004 20" TV

2 Answers

Bush TV and Setting Default Inputs

Not an expert on this model but generally if you switch the TV on by pressing the remote's power button it will come back using the input you previously used. If you press a channel button it will come back to DTV.

Jul 19, 2009 | Televison & Video

1 Answer


Run a channel scan on the DTV and/or TV input depending on what one your not getting channels on. This will solve your issue.

Change the input on the unit to the DTV or TV input. Press the menu button on the remote. Navigate to the tuner DTV or TV tuner setup menu. Go down to auto search using the down arrow. go right when with auto search selected. This may take a few minutes but you should have all the channels back after the scan.

Apr 06, 2009 | Vizio L32 32 in. LCD HDTV

2 Answers


Because you have DirecTV there is no need to use auto tuning. You simply changed inputs on the TV when you started auto tuning. Just use the input button on the remote to go back to the Direct TV receiver. Most likely it will be under Component (Color Stream) or HDMI input.

Dec 31, 2008 | LG RU-27LZ50C 27 in. HD-Ready LCD...

1 Answer

Screen changes between color as a demo signal

Gateway was sued Class action over LCD's and Plasmas they sold over a 2 year period. They resell 3rd party TV's that were very faulty, an immature design.

Here's what I learned about mine, which makes it limp through as a Computer monitor (both DVI and VCA) and halfway functional TV.
You have to connect a DVI source, on the Main Menu for the DVI input there is an option called "Factory Mode". scroll down to it with the CH buttons and select it with the vol button. The scroll to "initialize eprom", select and confirm it. After the "Waitting" words disappear, make sure you have a TV source connected, Then turn the TV off and on, using the hard switch in the back. The TV input should be defaulted to channel 10 or 11 now But you select a TV channel that has no TV signal on it (like channel 1 for example) , the whole TV input side will refuse to let you select it again, and you'll have a blank screen and have to start over.

That takes care of the blank screen thing Now the other problem is parental control is defaulting to "ON" or something, and you can't program channels. With the TV input Main Menu engaged, select "Setup Menu." If you have this problem, then you'll only see 2 options, all the TV input and channel programming options will be missing. You have to select Parental Control, and when it prompts you for a password hit the volume > button 4 times (or just wait for a minute.) This should bring back your TV System and auto prgram/manual search options.

Unfortunately, my TV doesn;t remember these setting very well if I select cable, it does better if I select "AIr". But at least it funtions - kind of. If you switch to your computer input, you probably will have to switch the monitor off and on from the back panel again. Mine always starts up with the menu onscreen. All this might bve less trouble if you have a the remote, I don;t know where mine went after the last move.

Good luck, and hope this helps.

Billy K.

Sep 24, 2008 | Gateway LCD26TV 26 in. Television

3 Answers

My Vizio plasma TV won't change channels with the remote or side buttons, but if I input a channel number, it will change that way.

Try unplugging the TV for a few minutes and then doing an auto channel search through the menu button. That has solved my problem, at least for the time being.

Aug 11, 2008 | Televison & Video

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