20 Most Recent Magnavox MDR537H/F7 DVD Recorder 1TB Hard Drive with Digital Tuner, Records up to 1252 hours of contents onto 1TB HDD, 4-Way Dubbing HDD->DVD, DVD->HDD, DV->HDD, DV->DVD, Watch, Forward, Rewind or Freeze Live TV while Recording; 1080p Up-Conversion, Maximum 3 - Page 3 Questions & Answers

bad power supply

That make model number is a mess. You need 'make' and numerical model number only. Here are your codes https://myuniversalremotecodes.com/onn-dvd-universal-remote-codes/ Usually you can but replacement remotes, but this is Walmart's own bargain basement brand from China, made at the lowest cost point and the highest profit. Quality is not a consideration! https://www.google.com/search?q=ONN+ONA19DP005+remote ..

google magnavox 15mf605t/17 power cord they are readily available on line for less than $10.00

Any of these Margaret? https://www.google.com/search?q=magnavox+vhs+DVD+replacement+remote ..

Does it play the disc when it slows down?

go into tv set up menu and turn off power management

Service or users manual?

google make model manual

Flat Screen TV Turns Off By Itself - What To Check - How ...

https://removeandreplace.com > ... > TV Repair Jan 11, 2016 - The methods to fix or troubleshoot why your TV will turn off all by itself ... Hitachi, Element, Magnavox, Sanyo, and all other TV models. https://www.google.com/search?q=Magnavox+flat+screen+2017+model+disable+automatic+shut+off

A service manual for this is going to be impossible to find to figure out what's going on, unfortunately it's most likely not fixable, one thing I can tell you however is powering it up with a cable unhooked won't hurt anything

No one buys Universal Remotes these days because they are always a compromise. https://www.remotes.net/products/replacement-remote-for-dell-w4201c https://www.google.com/search?q=dell+w4201c+replacement+remote+control ..

Chances are your main board is bad and needs replacing

Bad main board

buy a samsung

You need a television remote. The Spectrum remote only does simple features. The Magnavox remote is available on Amazon and eBay. https://www.google.com/search?q=magnavox+TV+27ms343s+replacement+remote Try disconnecting the television from the mains supply overnight. ..

Vertical scan failure. Contact any service technician. If you wish to get some details; check the sites linked here. https://elektrotricks.blogspot.com/ https://electronicshelponline.blogspot.com/ Faults & possible causes to LCD screen are given with illustrations. You can get an idea about the fault. Search the site by type in the Brand Name of your set, in its search bar at the right side column, and press enter. See it in by Webview with mobile or by desktop. Mobile View has no search box. Screen-shots to defective LCD panels are given. You can see and compare to that to your TVs', and can make sure about the fault to an extent.

this is not SAMS CLUB

3, 4, and 5 digit codes. Better to buy a copy remote for the Seiki make and model.

Remote Control Codes For SEIKI TVs

https://codesforuniversalremotes.com > remote-control-... Looking for SEIKI TV remote codes? I'm trying to set up my cable/satellite/universal remote to work with my SEIKI television. What is the manufacturer's ...

SEIKI TV's Universal Remote Codes & Program Instructions

https://universalremote.codes > seiki-tvs Jan. 22, 2021 - SEIKI TV 5 Digit Universal Remote Codes List. 12964, 13559, 13560, 10178, 13953, 11864 · SEIKI TV 4 Digit Universal Remote Codes List. 4635, 3953 ...

The model would have helped, magnavox is made by a Chinese company called funai, they had a lot of issues with bad LED backlights

Try cleaning the lens

Try cleaning the eye or pickup lens