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I have a Magnavox 19MF337B/27 LCD TV blank screen

I have a Magnavox 19MF337B/27 LCD TV that was totally non-functional when I got it. I have replaced capacitors C112, C117, C118, and C175; the TV now powers on, but the screen is blank (there is backlight) and no sound. Any suggestions on what to to now?

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Main board fault. Contact any service technician. Gopakumar Gopalan Google

Posted on Feb 17, 2014

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SOURCE: magnavox 19mf337b lcd tv

If the cost of repair is 50% or more of the price you purchase the TV at, your better off buying a new TV.

Posted on Oct 09, 2008

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SOURCE: Magnavox 19MF337B/27 LCD TV problems

The bad capacitors in this set are usually NOT on the power supply--they are on the other (logic) board. You will find several bulging capacitors there. Replace em all....

Posted on Nov 17, 2009

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I have a Magnavox 19MF337B, and it powers on and off a few times before staying on. After it powers on, I just get a white screen, and nothing else works. remote does nothing, and buttons on top do...


In some cases these TVs were to be returned for exchange. As costs were excessive. If this TV is out of warranty and you have no place to go with this TV, you might just have a hobbiest open the darn thing up. I would say you have a bad capacitor or two in the power supply. This is at its easiest repair. If not you may have a bad LCD panel and that is not worth replacing! Hope I could give a something to work with. Thanks for asking!

Aug 22, 2010 | SNK Magnavox 19MF338B/27 19 in. LCD TV

2 Answers

Magnavox 19mf337b/27 will turn off and back on with loud noise through the speakers until it warms up. approx 30 to 40 min. What is the part causing this common problem?


Check the 2200uF capacitors for bulging. You can get the schematic here to really toybleshoot: http://www.electronica-pt.com/index.php/component/option,com_remository/Itemid,34/func,download/id,15048/chk,6022df47696641c1c064cb27f2bd7d11/no_html,1/

May 20, 2010 | SNK Magnavox 19MF338B/27 19 in. LCD TV

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Problem with Magnavox 19mf337b/27b flat panel tv. During startup, the picture gets static and the audio screaches. The tv restarts. This happens repeatedly until the tv warms up and becomes stable.


you have a firware related problem on your main board, consider get a new main board, or replace the tv.
if you want to sell for parts let me know cuz i need the LCD panel
write : fosg2000 (at) gmail (dot) com

Apr 02, 2010 | Philips Televison & Video

5 Answers

Magnavox 19MF337B/27 LCD TV problems


The bad capacitors in this set are usually NOT on the power supply--they are on the other (logic) board. You will find several bulging capacitors there. Replace em all....

Nov 06, 2009 | Televison & Video

1 Answer

Magnavox 42 LCD 42mf438b/f7 turns on/off by itself sometimes screen goes blank tv unresponsive to remote


I have exactly the same problem with a Magnavox LCD 42", very similar model 42MF437B/37. I don't have a solution. If you unplug the TV and plug it back it starts working, sometimes for hours, sometimes for less than 5 minutes, before it turns off again. Does anyone have any real solution?

Jul 08, 2009 | SNK Magnavox 42MF438B/27 42 in. LCD TV

1 Answer

Magnavox 19" TV shuts itself off.....won't stay on


I had a similar problem with my Phillips 42 in. LCD HD TV.

Here's the problem. The Power Supply Board. I opened my TV up(warranty was up of course) and found several bad capacitors. Phillips and several other companies were sold capacitors that although were highly rated failed within 5 years because of a lack of preservatives. All sorts of electronic equipment is now being effected due to these defective capacitors.
Solutions?
1. Take it in and have it fixed
2. Open it up, check the board for faulty capacitors(bulged or leaking) Buy a new Power supply board and install it.
3. Remove PSB, remove faulty capacitors and replace with compatible new ones.

Hope this helps

Jun 04, 2009 | Philips Magnavox 27MS343S 27" TV

1 Answer

Screen went to a 4 inch pic in the center of screen, then total black. All other functions work, just no pic


if the picture shrink into the center of the screen about 4inch then goes blank. you do have problem with your vertical drive IC, it's either loose contact with the board or the vertical IC already malfunction.

Jan 14, 2009 | Philips Magnavox 27MS343S 27" TV

2 Answers

Vertical height adjustment on Magnavox 19 inch LCD HDTV


try to adjust at the vertical section.hope this will help

Feb 01, 2008 | Philips 19MF337B/27 19 in. LCD Television

1 Answer

Magnavox 19mf337b lcd tv


If the cost of repair is 50% or more of the price you purchase the TV at, your better off buying a new TV.

Nov 27, 2007 | Televison & Video

1 Answer

Dvd Player


probably the eject motor is non-functional.the tv can be opened and the dvd removed manually without affecting the tv section. the problem can be fixed by replacing the motor.

Jul 30, 2007 | Philips Magnavox 27MS343S 27" TV

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