I'm stuck on mute without a remote. - Yamaha RX-V463 Receiver

The one logo is coming from the set top box that is supplying the signal, cable box, satellite box, Android box etc. Look for Mute on that remote, or cut the power to all your devices by removing the wall plugs. Wait 15 minutes and plug back in.

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most newer tvs require the remote for most other functions than source-volume and channel selection, if its stuck on mute you may try unplugging the TV for a few hours or days to see if defaults try pressing the power button on the tv and holding it while its unplugged, this resets some models, your best bet is to program a universal remote or a cable/satellite tv remote with your TV model, otherwise get used to Lip reading !!!!!

Without a remote control, you can un-mute it. If you wish to buy its original remote control, contact the authorized service centre, or authorized dealer to your device brand. They can either give you a genuine remote control to your device, or can direct you, from where can you purchase a suitable one.
To select a proper universal remote control, you should know about the number of digits to its set-up codes. There are 3 digit, 4 digit, 5 digit, 2 digit and even single digit codes, to some brand devices. After confirming this, check the sites linked here. Both the sites have set-up code list and set-up procedure to many popular brand remote controls. Check which brand remote control has set-up code/s to your device brand, and buy that one according to availability.
Brand name of the remote control isn't a matter, but it should have set-up codes in its code list, to the device brand you have.
Please note: Every new universal remote control will have set-up code list, and set-up procedure along with its pack. Never accept a remote control, that hasn't both of this. For more details about the set-up codes, visit the site http://electrohelponline.blogspot.com/ Check this site too. http://remotesearch.blogspot.com/ Universal remote controls are available at most of the electronic spare part selling shops.
Type in the "brand name only" of your device, in the search box [at the top right] of the display window and the Search will start at once as you type in, and will show you all the related posts. It will make surf easy.

ALL I CAN UNDERSTAND THAT THE REMOTE MUTE BUTTON IS WORKING PLEASE TRY WITH ANOTHER REMOTE WITH YOUR FRIEND OF SAME MODEL TO CONFIRM

The fault is with its main board itself. It will be best to get this set repaired by skilled technicians. This is not a user repairable one.

I remember those sets.

I assume you mean you CAN'T get volume back afer hitting MUTE on the remote. I also assume you have tried to hit MUTE again, and INCREASE VOLUME and they also do not work. Easiest first try is to change remote batteries and clean battery contacts, and cross your fingers. If you are using a programmable Universal Remote, you may need to try an alternate programming code ... sometimes the wrong code allows some functions to work and not others. If you can get your hands on a second remote, try it again and if it works, then your first remote is broken. If not the remote, as a guess it sounds like the mute circuit is latching-up (the electrical equivalent of a stuck switch). This can be caused by anything from a bad transistor (or IC) to a bad capacitor to ground on the mute circuit. If you can locate the mute circuit on the board you can try replacing these parts (a transistor or capacitor are probably inexpensive enough to try - an IC is probably not worth it, and you will live without the convenience of a working mute). You can also try to reheat the solder joints on the circuit board for the Mute Circuit section of the board -- just re-liquify the solder and get a shiney connection. If you have a bad connection or cold solder joint it could cause the problem. Obviously, DO NOT TRY THIS IF YOU DON'T KNOW HOW TO AVOID ELECTRICUTION - sets hold a pretty stiff charge even after unplugging them, and can really hurt if you get zapped.

Maybe if you push the volume button on the front of the tv.

sorry but there is not a reset button and it looks to me as a damage chip is truth that tere is a mute option in your vcr but I have fix that problem before and was a bad chip look for a teh to help you but remember a new vcr cost is verry low so dont spend to much in that one..good luck