Magnavox flat screen TV won't power on how do I fix

SOURCE: Magnavox lcd flat screen tv

Nope, don't think it's the speakers...I still get a black screen.

Luis Rondon

• 56 Answers
• Posted on Nov 19, 2008

SOURCE: HOW DO I CONNECT MAGNAVOX DVD/ VCR TO VIZIO FLAT SCREEN

Is simply. get the audio/vido cables and look on the back of the TV and connect from the audio video outputs from the combo to the audio video inputs on the tv. remember the colors of the terminals and connect them that matches the red, white (audio) and the yellow (video). Using the remote locate the button "input" or "source", and select video 1 or 2, depending where you connected it.

SOURCE: 32 in Magnavox tv model 32MF231D/37

An earlier post of the smaller model of this with the same problem said to remove the metal cover over the power supply.

I have the 26MF231D and it worked great afterward (even though you can't mount it)

Here is how you remove the cover.
http://www.flickr.com/photos/88002248@N00/sets/72157611665895426/

SOURCE: where do you get capacitors for TV?

There are a number of online vendors for parts. I use MCM Electronics (www.mcminone.com) and Digi-Key (www.digikey.com) as well as a few mail-order houses. Radio Shack still carries a few capacitors, but likely won't have the values you'll need for TV work. You can also search for repair forums where you might find information for specific models of TV about the parts you need and sources.

When replacing caps, it's a good idea to go up to the next higher voltage rating and keep the capacitance the same. The part will be slightly larger but usually will still fit on the board. Under-rating is what usually causes these to fail in the first place, but manufacturers do it to save a few cents.

SOURCE: magnavox 37" flat screen model no.37mf23id/37

Yes, he means 2200 microfarret (called uf from here on out). Another important concern when buying a replacement is the voltage. You need to get something that is at least 25v. I recommend a 35v or better. Another notable point is that this may not always fix the problem. As with mine, there was also a 1200uf (microfarret) 35v capacitor that was blown. You can tell this because they bulge at the top. I have both of these caps (2200uf 35v and 1200uf 35v) on order and they will be here tomorrow. If I do not post back here then they fixed the issue for me. I suspect that this will resolve the problem. Look for bulges on top of the caps. This is an indication that they are blown. Most all of you experiancing these symptoms will see the 2200uf cap bulging but you may also see others bulging too. If you do then you need to replace those too. No electrolitic capacitor should be bulging at the top so if its bulging its bad, and if its bad then your tv will definitely not work. Have fun.