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My charity got a donation of a Philips / Magnavox 37MF331/D37 that when powered up has a flashing or flickering of the screen. I read about the caps problem but it's pwr unit has no "popped" caps. Can the caps still be bad or should I look for something else?

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Fault with the main power supply regulator board. Check and replace damaged component/s at its main power regulator [SMPS] section circuit. Contact any service technician. If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts.
It will be best to replace the power supply regulator board as card basis rather than making "Surgery" to it; which usually will make loss for both money and time. Even though you can make it right, it will cost around an amount equal to the cost of a new board; including the cost of (spare parts + service charge) More to say, most of the spare parts to it will be difficult to get from open electronic spare part market. This is true to most of the flat panel TV power supply boards; irrespective of its brand and screen size.

Posted on Nov 16, 2014


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When I press the power button on my 42MF521D/37 Magnavox LCD, the green power button flashes but it never turns on. I have also noticed that the backlight on the screen flashes too. I have pulled the power...

This problems the power supply board still have more parts are dead,than just those capacitors are noticeable are dying leakages capacitors are bulging ups.U must have more electronic skills and equipments like a Scope to check those transformers input and output reading and a Capacitors reader tester to icesolate to check for more of those capacitors u think are good,but they have short in it,give out less micro feret and voltages as they should to the power supply board.Tries wesite like, to buy a whole refurbish power supply board for the replacement.

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Hi we are a charity with a donated Trendline Bike needing battery


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That can be almost anything. Sounds like something is keeping the TV in shutdown. Contact a local TV shop.

Mar 26, 2010 | Philips Magnavox 50ML8105D 50" HDTV DLP TV

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When you turn on the tv the green power light flashes and so does the tv screen

I had the same problem, it was fixed under an extended warrantee, caps on the power supply were bad, number 2074, they replaced it and another one on the same board.
Tv has been back and running fine for 2 months now, if you google Magnavox and blinking green power light you should be able to find a ton of hits on the same subject and many have repaired these tvs by themselves. Good luck, another solution is to order a new power supply, they run abut $150, if you can find one.

Nov 27, 2009 | Philips Magnavox 42MF521D/37 Television

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I have one of these wonderful units. Most common failure is power supply. There are three capacitors that tend to fail early and often.

New PS board is around $200 and a guy on ebay has a repair service just for Philips LCD TV power supplies for $99 (you know it's a common problem when there are whole businesses being created to fix the problem).

Also on ebay you can buy a philips LCD TV 'power supply repair kit' for under $20 which has replacements for the cruddy parts that philips put in at the factory.

The number of blinks of the LED are actually a blink-code, which, while typically wrong, is supposed to help point out where the problem is. Most common flashes are 4 based on limited googling on the problem.

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The light flashing led yellow and wont turn on, when it decides to flash a green light if we can catch it and push the remote on button numerous times it may come on..the screen flashes a bit and goes...

philips has a problem with bad(swollen)caps in the power supply you can replace the caps yourself or go to enter model number scroll down-find power supply-if they do not have it in stock write down part number google to find some one that does

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Philips magnavox 32" TS3260C1

Sounds like retrace lines. Leaky caps or worse can cause this.. Are you getting any vertical foldover at the top of the screen?

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