No Sound on one channel 62 all other TV have sound on same antenna.

Impossible to answer without 'Make and Model', but we can guess.

Scan for what? Scan for new channels?

How to Scan (or Rescan) For Channels on Your TV

How-To Geek https://www.howtogeek.com > how-to-scan-or-rescan-...
Jun 19, 2019 - Find and select the "Channel Scan" option in your TV's menu. This option is sometimes labeled "Rescan," "Tune," or "Auto-tune."

I can provide some general steps on how to scan for channels on a TV: Make sure that your TV is connected to an antenna or cable input. Turn on the TV and go to the main menu or settings. Look for an option to scan for channels or auto-tune. This option may be labeled as "Channel Setup" or "Channel Scan." Select the option to scan for channels and wait for the TV to complete the process. This may take several minutes. Once the scan is complete, you should see a list of available channels on your TV. If you're still having trouble, I suggest referring to the user manual that came with your TV for more specific instructions. Alternatively, you can try contacting the manufacturer's customer support for assistance.

If you are seeing snow on your Symphonic TV screen, it could indicate that the TV is not receiving a signal from your cable or antenna. Here are some steps you can take to troubleshoot the issue:

1. Check the cable or antenna connection: Ensure that the coaxial cable or antenna is securely connected to the TV and the wall or source.
2. Run a channel scan: Perform a channel scan or auto-programming to ensure that the TV is tuned to the correct channels and that it is receiving a signal.
3. Check the TV's settings: Make sure that the TV's input is set to the correct source, such as cable or antenna. Also, ensure that the TV's settings are not set to "mute" or "no sound."
4. Try a different device: If you have another device, such as a DVD player or gaming console, try connecting it to the TV to see if it is able to display video and sound.

If none of these steps work, you may need to contact a professional technician or the manufacturer for further assistance.

On the remote, press the "MENU" button to go to the "Menu" screen, select "TV Settings" with the arrow keys, and press the "OK" button. Then go to "Device Setup" and press "OK". Go to "Input Source" and press the arrow keys until "Antenna" appears, then press "OK".

Select the "Tuner" option and press "OK". You may see an option to scan channels. Select it and press "OK". The TV will scan both analog and digital channels and can take an hour to scan all. Just wait and watch the "Found channel" count. If it does not increment, your antenna may be bad or not connected correctly.

The Vizio tuner is good enough to find over 14 digital channels with a cheap $10 flat digital antenna taped to my window.

Set the Channel scan for cable input, not antenna.

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.

Hello
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.

you cann not hook an antenna and cable to a splitter together and expect it to work
the only way that will work , if your tv had two tunners Try doing a scan with cable
only on the cable setting

You won`t get round the scan without an aerial.You still can set a recording as long as you set the recording channel as av2.Make sure the scart lead is fully in on dvd and tv,this can lead to no pic but sound,or sound no pic

you can try changing the assigned channel.you should have to put the second T V on a certain channel like channel 72 or 68 or something like that.on the main reveiver you should go into the menu and poke around in the setting until you see a REMOTE ADDRESS option walk through the steps and change the channel that the second TV receives its picture on, you should shoot for channel 62-72.also make sure the hisense is set to a cable input.you can go into the menu on the hisense and go to your settings and change this .it will be on CABLE or ANTENNA.try switching those around.also did you have sound before coming out of the coax output on the hisense? if your not sure then plug a vcr into and make sure the TV is working with different equipment.GOOD LUCK!