Unfortunately you are having a issue with your DMD board.It sounds like it is starting to fail and you will not have a picture soon.The sound stays on due to the TV not detecting the issue yet,but it will also cut out when it does. You might be able to fix this problem on your on if you find the part for sell. I hope my answer was helpful :)
most likely replace the power supply however you should probably have a technician look at it the part and labor is relatively cheap though so definitely worth it
If you using cable tv or satalight dish this is called tiling tiling happends when the signal is weak and its not getting decoded correctly first I would try a dvd if it happend on a dvd then you have to worry if it happends on cable or sat signals then you need to call them out there to test your signal. Other then that I would not worry about it unless it happends on a DVD or even a blue ray disk if it does you need a new tuner/decoder board and then you will start digging unto you wallet for the rpeair if its not under warranty. Thanks I hope i covered all possiable avenues please do click the accept button for my efforts. Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/edwy_1a56970cf1ea4620
does it sound like grinding ball bearings? like a bad computer fan? Hate to break it to you but it is the color wheel(part of the light engine) $900 part about $350 labor, and if the tv is out of warranty your out of luck. (happened to me)
sounds like something magnetic got too close to screen. There are repair techs that have demagnifiers but they dont always work... Some will do house calls. Good luck
The internal fan kicks in when the set starts to get too hot.
Check the ambient room temperature to make sure it is not too hot in the room. Also note that some fans ALWAYS turn at some speed and if its making some sort of noise you dont like then it might just be dirty. try dusting it out.
This is a known issue with this TV. The following might resolve it:
Check Mute and Volume:
Ensure that the TV is not muted and that the volume is set appropriately. Sometimes accidental button presses can lead to muted sound or low volume.
Inspect External Speakers:
If you're using external speakers, verify their connections. Loose cables or faulty speakers can cause sound issues.
Test Different Inputs:
Connect a non-HDMI device (such as a DVD player) to the TV. Observe if the sound distortion occurs. If it doesn't, the problem might be related to the HDMI signal from your Virgin box.
HDMI Troubleshooting:
If the issue persists with the DVD player over HDMI, consider the following:
HDMI Cable: Check the HDMI cable for damage or loose connections.
Virgin Signal: Contact Virgin to inspect the signal/lines and replace the box if necessary.
Mainboard Replacement (if needed):
If the sound distortion persists, it could be due to a faulty sound processor chip on the TV's mainboard. In this case, consider replacing the mainboard.
TOSHIBA 42RV500E, 42RV500T, 42RV500Y, 46RV500E, 46RV500T User Guide (manualmachine.com)
There may be loose contact or track open in main board.So try to check the main board thoroughly where you may find the loose of connection or track open.
Locate the Battery Cover: Look for the battery cover on the back of the remote control. It is usually a small compartment that can be easily opened.
Remove the Battery Cover: Depending on the design, there may be a latch, screw, or sliding mechanism to secure the battery cover. Use your fingers or a small screwdriver to open the compartment.
Remove Old Batteries: Take out the old batteries from the battery compartment. Pay attention to the orientation of the batteries, so you know how to insert the new ones correctly.
Check Battery Polarity: Take note of the positive (+) and negative (-) signs inside the battery compartment. Make sure to insert the new batteries with the correct polarity to match these markings.
Insert New Batteries: Place the new batteries into the battery compartment, ensuring they are properly aligned with the correct polarity. Press them down gently to make sure they are secure.
Replace Battery Cover: After inserting the new batteries, close the battery compartment cover securely. If it has a latch or screw, make sure it is fastened properly.
Test the Remote: Point the remote at the device it controls (such as a Toshiba TV) and test whether it responds to your commands. If the remote is working correctly, you have successfully replaced the batteries.
Dispose of Old Batteries: If the old batteries are no longer usable, make sure to dispose of them properly. Many communities have designated recycling locations for batteries.
Serial numbers don't work Judy
https://www.google.com/search?q=A10A13799C3300
They are purely a numerical identifier of when it was made, year, day, number on the shift, whether it Joe or Billy who did final inspection.
With a MODEL number I can find them easily with just 'make model manual'.
Toshiba
http://www.toshiba.com > support > content
PDF
Thank you for purchasing this Toshiba LCD TV. This manual will help you use the many exciting features of your new LCD TV. Before operating your LCD TV, please.
62 pages
Toshiba
http://www.toshiba.com > support > content
PDF
Thank you for purchasing this Toshiba LCD TV. This manual will help you use the many exciting features of your new LCD TV. Before operating your LCD TV, please ...
62 pages
..
No you can't the Insignia remote is for that model television only. Companies don't make their remotes so they operate other makes of televisions. Buy a Copy Remote for the Toshiba
https://www.google.com/search?q=insignia+remote+NS-RC03A-13
..
