My VEON V48FHD TV cycles through on and standby and wont display the source or menu on screen

Unfortunately you will have to purchase a remote control for it. All menu systems are within the setup display, all of which are controlled with the remote.
They may be available on eBay.

Andrew found the link.

Connect the DVD player to the television with an HDMI Cable and use the television remote to scroll through 'Source' or 'Input' while a DVD is playing.

https://www.google.com/search?q=Veon+television+connect+Veon+DVD+player

..

Veon TV's were sold exclusively by The Warehouse, a New Zealand distributor. If damaged, instruction were to take the TVs to The Warehouse where a diagnosis would be performed. The TV's are purportedly Chinese in origin and made in China. Your primary source of information would be through The Warehouse. I have reason to doubt they would have information related to any firmware update but you might give them a try. I notice Veon is also a communications company but do not know their link with the TV. I inspected a manaul for a Veon TV and was dumbstruck to find it neither listed a corporate address nor warranty information but simply troubleshooting. A TV technician might be able to identify the Chinese manufacturer but I suspect contact with manufacturer's of component parts would prove to be a wild goose chase with the goose speaking Chinese. As I find no OEM support page, I can only suggest you contact The Warehouse or a technician that works on such models. I find no access point to any firmware available to the general public.

What are you using as an input? HDMI?
Did you try other inputs?

1. Try removing power from the source component by unplugging from the wall, waiting 30 seconds, and then pugging it back in.
2. Try another source cable (HDMI or component etc.)
3. Try a different TV input or source type

Veon VN3278LCD FHD Instruction Manual Visit this site to get its manual. It has all detail bout the firmware upgrade procedure.
http://electronicshelponline.blogspot.com/

Corrupted firmware. An update is necessary. If you wish to get some details; check the site linked here. Pull up older posts. http://electronicshelponline.blogspot.com/ Firmware (Software) update procedure of many popular brand TVs and other devices are given in detail.

Usually fuse near cord interior in case. Teardown. Careful..VOLTAGE danger even unplugged. Touch nothing else.

There is no audio output socket to this TV. Audio input is there.
Gopakumar Gopalan Google

The eject button on the remote appears as an upward-pointing arrow with an underline - see below image. The eject button on the TV has a similar symbol.




However, I suspect that in your case, you might not be having a Remote.

This link says that your TV doesn't come with a Remote and DVD cannot be ejected without the remote :
VEON 19 LED TV DVD FREEVIEW COMBO A1823511 1

Help my veon tv power is on sound is work but the screen is black ..i dont know what to do ?