Magnavox 20MF251W won't turn on at all

Question edited for clarity.
Question moved to a Magnavox category.

Apparently you can.

20MF251W/37 Magnavox - p4c.philips.com

https://www.p4c.philips.com > 20mf251w_37_pss_
PDF
Feb 6, 2014 - The high brightness, high contrast 20MF251W features an ... superb Virtual Surround Sound and even doubles as a PC monitor.
2 pages
Missing: MacBook ‎' Must include: MacBook

External Monitor Resolution Options - Apple Support ...

https://discussions.apple.com > ... > macOS Catalina
Mar 22, 2020 - My display (32in Magnavox TV) has 1366x768 resolution, but none of the options work. I've even tried 1080p and 1080i with the same result.
6 answers · Hey wjohnson36, Thanks for using Apple Support Communities! I understand you have some ...
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This is the setup code for your Maganavox combo. 0456

power supply problems does it have a separete power supply if so you can try to change or if you have someone with the same you can ask to try it.if its internal power supply it needs to be fixed.

Mine was doing the same thing. Update the firmware and it fixes the problem. Updating the firmware is done by downloading the file to a thumb-drive from the phillips product support page then plugging in the drive into the side of your television and turning it on. See your manual for slightly better instructions.

It may be touching in the back of the tv on a power point. Yours is doing the same thing mine did before it finely all most burnt up it self and my house The metal casting that the tv mounts on in the tv ,does not have enough room in it. the metal casing touches one of the power supplys in the back and shorts out. If its like my 32'' magnavox flat panel

You might try a Magnavox brand universal remote. Get one with a "menu" button. Often they give nearly complete control on a Magnavox brand TV. Otherwise, the only real solution is to purchase the exact original remote. There are many vendors on the Internet selling replacements, but often the costs are ridiculous.

there are none on my list, you can try to google DVD Hacks or region code with make and model

GO to Magnavox Owners Manual---on the www.

Try the Philips codes as well...

On those particular Magnavox TV's you have to use the original type of remote to power it back on then un-lock the parental lock. It is a bummer that nothing else will work. Here is a link to purchase a replacement remote.. http://www.electronicadventure.us/Merchant2/merchant.mv?screen=prod