View full Sharp Aquos LC-D43U specs on CNET. Biggest Black Friday deals right now: $170 AirPods Pro at Amazon, $159 Chromebook, $100 Fitbit Charge 4 and more. Sharp TVs can be programmed to store channels that you subscribe to and block out the ones you don't, making flipping through your cable channels as convenient as possible. This process is usually done with the remote that comes packaged with your Sharp TV, but sometimes the remote can't be found when you need it or no longer works.
Please note: All TV manufacturers differ, so menu options, wording and other items related to rescanning may vary. The best way to complete the channel scan is to refer to the TV owner's manual. If that is unavailable, the following general steps should guide you through the process:
- Using your television's remote control, press the Menu or Settings option.
(Note: a 'Smart TV' may have a smart button that must be used to access the settings menu. It will generally have the manufacturer's logo on it.) - Locate Channels or Tuner Set Up or AutoTune option.
- Check the menu for an option of Antenna Type or Connection Type followed by either Antenna or Cable.
- For antenna users, make sure that the designated setting is Antenna.
- From the menu, choose Digital Channel Search (depending on the manufacturer, alternate choices may include Channel Scan, Channel Search or Autoprogram.)
- Allow the TV to complete the search. You may see a bar listing how many channels have been found. The process may take several minutes to complete.
- Once complete, confirm the menu prompt, then press the exit or quit option.
Rescan Info & Links for specific TV models:
How to rescan a Toshiba TV.
- Press the MENU button on the remote control.
- Use the arrow buttons to select SETUP from the upper items and press ENTER.
- Using the left/right arrow buttons, select Antenna or Cable as desired. Select START SCAN to begin the Auto Tuning.
How to rescan a Samsung TV.
- Press the MENU button on your remote control.
- Scroll down to Auto Store and press the ENTER button.
- Select Antenna type and press the ENTER button.
- Select the antenna type that you are using (Air or Cable) and press the ENTER button.
How to rescan a Vizio TV.
- Press the MENU button on your Vizio remote.
- Go to TUNER and press OK on the remote.
- The menu will have “Tuner Mode” listed at the top. Make sure this is set to Antenna. If it says “Cable,” then change it to Antenna.
- Select AUTO CHANNEL SCAN and press the OK button.
How to rescan a Sony TV.
How To Scan Tv Channels
Note: instructions may vary slightly depending on the TV model.- Connect your TV to your cable or antenna source with a coaxial cable line.
- Press the MENU button on your remote to bring up your TV's menu.
- Use the arrow keys on the remote to navigate through the menu and select the CHANNEL tab.
- Select ADD DIGITAL CHANNELS and select OK to confirm.
- All available digital channels will be automatically tuned into the TV.
How to rescan a Sharp TV.
- Choose AIR.
- Use the Left and Right arrow buttons on the remote to highlight START, then press ENTER.
- The TV will perform a scan for available signals, which may take several minutes to complete. When the channel scan is complete, an overview of the number of channels found will be presented.
How to rescan a Panasonic TV.
- Highlight the PROGRAM CHANNEL option, then press OK to enter the Program Channel menu.
- Press the right or left remote button to select ANTENNA in the ANT In box.
- Press the down button to select AUTO, then press 'OK.'
https://itstillworks.com/channel-search-panasonic-viera-38813.htmlHow to rescan an LG TV.
- Press MENU on the remote control/TV set.
- Select SETUP on the menu and press OK.
- Select AUTO-TUNING and press OK.
- Select START, then press OK.
- The television will begin to search for all available channels.
So you’ve got your antenna setup and plugged into the back of your television set only to find your auto scan not finding channels, or at least the channels you were expecting. If this is happening to you keep reading! In this article we are going to take a look at what the likely causes of this could be.
Why Is Auto Scan Not Finding Channels?
There could be several reasons why your auto scan is not finding channels. To start, let’s make sure that you are selecting the right input mode on your television set.
Typically, this will be found under your Menu –> Channels –> Auto Scan. Of course not all television set manufacture menus are the same, so yours may vary from this slightly. You can see in the image below that my TV refers to it as “Auto Channel Search”. If yours is called something different, simply consult your user manual to see the steps your are supposed to take to get here.
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Once you’re in the “Auto Scan” menu there should be an option to select either “Cable” or “Antenna”. Be sure you are choosing “Antenna” or some variation of this ( I have seen it listed as DTV). This will start the Auto Scan procedure.
If after the scanning process is complete your television auto scan not finding channels persists, it’s time to start troubleshooting. Here are some things we are going to need to check:
- Your TV Tuner is functional – it may be helpful to try a different TV if this is an option to ensure your TV’s digital tuner card is not the issue. This is as simple as plugging your coax cable into a different TV and running the auto scan on that.
- Your antenna cabling is not faulty – we need to make sure that you are getting a signal out of your coax cable. More on this later.
- Your antenna is properly aligned – obviously we will need to make sure your antenna is pointing in the direction of the broadcast towers in your area. Below will be some helpful tips to ensure this is the case.
- Your antenna has sufficient range – this is going to be another important piece of the puzzle to ensure you are able to pull in the appropriate over-the-air (OTA) signals in your area.
- Ensure proper noise mitigation – A noise margin greater than 0 is required at your tuner to display a channel on your TV set.
Let’s look a little closer at each one of these items to try to figure out why your auto scan not finding channels.
Check If You TV Tuner Is Functional
The first thing we should probably try to diagnose is whether your television sets TV Tuner is functioning. I should point out that if your television was made before 2009 it likely has an analog tuner in it. If so this is likely the reason for your television auto scan not finding channels.
If indeed your TV is pre-2009, you are going to need a converter box such as this inexpensive iDOO ATSC Analog-Digital Converter Box on Amazon. With this box you can conveniently convert the over-the-air (OTA) digital broadcast received from your antenna (not included) to your analog TV, digital TV, projector, computer monitor, smart TV, HDTV, LED TV, LCD monitor,etc.
Okay, assuming your television set was made in the last 10 years or so, you should have a digital tuner installed in your TV. That means it’s time to try something else. As mentioned, probably the easiest thing to try is to plug in the coax cable coming from your antenna into a different TV. Admittedly, this can be easier said than done, however, you can split your antenna signal using an Antenna TV Splitter to a room where you have another TV to try.
If plugging your antenna’s coax into another TV is not an option for you then you may want to look at investing in the KING SL1000 SureLock TV Antenna Signal Meter. This meter offers a fool-proof way to locate the strongest available TV signal(s) no matter where you are. If your TV antenna can receive the signal, the SureLock SL1000 can help you point your antenna to maximize it!
Check Your Antenna Cable Is Not Faulty
If the signal meter above is a little out of your price range or you happen to have a digital multi-meter hanging around your house, you can use it to check to see if you have a signal. Let’s do a check to ensure this is not the reason for your television auto scan not finding channels.
Just like any radio transmission your digital antenna receives radio signals that is transmitted via small electrical impulses to your television tuner. This means that you can use an electrical multi-meter to test whether or not a signal is traveling down your coax cable. If there is a problem with your cabling, such as a cut or short in the wire, this will cause the signal to be disrupted.
Tv Channel Scan Day
In addition, if the antenna is not properly grounded, the signal can pick up interference from the electrical potential of the antenna itself. If you are interested in How To Properly Ground A TV Antenna, be sure to check out the article.
Let’s perform a couple of checks using your digital multi-meter to ensure your coax cable is good.
- Set your multi-meter to measure ohms, which is represented by the “Ω” symbol.
- Remove the antenna cable from your television set.
- Touch one lead of the multi-meter to the metal part of the connector and touch the other lead to the metal “core” or “stinger”. The ohm reading should be infinite.
- Now short one end of your antenna cables metal “core” or “stinger” to the coax connector. On the “un-shorted” end touch one lead on the “stinger” and the other lead on the coax connector. The ohm reading should be zero.
Rather see it in a video. Check out the YouTube video below that will walk you through how to test your antenna coax cable.
Make Sure Your Antenna Is Properly Aligned
Direction, direction, direction! Perhaps one of the most important aspects of any antenna installation. This could be the reason your television auto scan not finding channels. What you need to do is figure out which channels are available to you and in which direction the TV broadcast towers are located. You can use an online location tool such as TVFool.com or check out our very own TV Station Locator page.
This YouTube video will walk you through everything you need to know when using our tool. Nightmare creatures ps1 iso. It will show you how to find TV stations available in your area and in which direction the TV towers are located.
You will need a compass or at least a smart-phone compass app. Once you use our TV Station Locator tool and have your bearings, head to your antenna and rotate it so it is aligned in the direction of your broadcast towers. If your antenna is on a roof you may want to have someone at your TV end to help with the fine tuning.
Alternatively, if you’ve been reading other articles on this site you will know that must “cord-cutting” enthusiasts rarely bring their antenna signal directly into their television set. Rather, they stream their antenna signals indirectly to their smart TVs, tablets, phones, Media Streaming boxes by way of a network tuner device.
The tuner devices I own can be purchased directly on Amazon and are called SiliconDust HDHomeRun EXTEND (2-Tuner) tuners. These devices are awesome!
If you get yourself one of these network tuners then your task of aligning for the best signal strength becomes much easier via one of the free smart-phone apps available on the Google Playstore. You can see in the image below I get real-time feedback of my antenna signal strength for a specific channel all while standing on my roof at the antenna…cool!
Check Your Antenna Has The Required Range
It’s important to understand that no one antenna or antenna type will deliver excellent TV reception in every location. The main factors determining reception are the distance and direction from the TV station transmitters to your home.
The transmitter’s power and the height of its tower also matter. This alone could be the reason for your auto scan not finding channels. Be sure to check out my article how high should you mount a TV antenna.
If you live within a few miles of the broadcast tower, and the signal path is relatively unobstructed, you may be able to get solid reception using a small indoor antenna. However, as you move farther away, getting usable signal strength becomes trickier. This is where careful antenna selection and installation become essential.
First, it’s probably a good idea to discuss the two broad categories of TV antennas that are out there so you can understand which category your specific antenna fits into. The two classes are omnidirectional and unidirectional, so let’s take a closer look at both.
OmniDirectional are antennas that will receive a signal from all directions because they offer a 360 degree field. So if you have one of these types of antennas there is really no need to “point it” in any specific direction. In this case if you are not getting the results you think you should be getting your only option is going to be to find a better location on your house or property.
If you’re in the market for a good omnidirectional antenna I highly recommend the Mohu Sky 60 TV Antenna.
UniDirectional antennas have a much narrower beam width, typically between 25 and 35 degrees. These types of antennas are much more resilient to noise and are ideal when your broadcast towers are clustered together in one general direction or area. It is important to note that TV signal transmission is “line of sight.” Getting reliable reception beyond the curvature of the earth (roughly 70 miles) is difficult. Mountains or tall buildings between the broadcast tower(s) and your home can also cause reception problems. So, the first step is to locate the transmitters for your local stations and point your antenna that way.
I personally use two unidirectional antennas in my setup. If you’re interested in checking out my current system check out this article The Best HDTV Antenna Setup Right Now. If you do, you will see that I am using the Channel Master CM-4228HD HDTV Antenna, I highly recommend this antenna for both affordability and quality.
Ensure Proper Noise Mitigation
The last thing I want to discuss is noise, the major causes of it and how to reduce or mitigate it. Any digital signal is going to be received by your antenna and ultimately your tuner with a finite amount of power. One of the easier ways to quantify this power is noise margin. The noise margin, given in decibels (dB), is the amount of signal noise allowable before the signal can no longer be received.
Noise can come from many sources, including any obstacles or interference encountered between your antenna and the broadcast tower. Other sources of noise can be that caused by splitters, the tuner you’re plugging into, and the coaxial cable itself. Microsoft office word 2003 product key free download.
This is why it is important to use high quality components and cabling. For splitters I recommend ANTOP Low-loss 3 Way Coaxial Splitter for TV Antenna or equivalent for its low-loss insertion. For coax cable you want to use a high quality RG6 such as Mediabridge Broadband Coaxial Cable.
Also, if the antenna is not properly grounded, the signal can pick up interference from the electrical potential of the antenna itself. If you are interested in How To Properly Ground A TV Antenna, be sure to check out the article.
Well I hope we’ve solved the reason for your television auto scan not finding channels. If you enjoyed this article, be sure to check out some of my other articles today:
And if you haven’t already done so, be sure to check out my Top 10 Antenna Picks for this year and leave me a comment!