Question about Philips Magnavox 42MF521D/37 Television

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42mf231d/17 magnavox tv made a loud boom when i turned it on, now there is sound but no picture, worked fine before, also, with the back off the green LED 2011 light blinks constantly, 3 times a second? please help if you can?

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6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

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  • 138 Answers

SOURCE: philips 42pf7321d/37 blinking power board question

The probleis with one of the maina boards and trouble shooting would have to be done to see which board is bad.

Posted on Aug 19, 2008

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ginko
  • 19396 Answers

SOURCE: Red LED blinking after turn on the TV (Philips Plasma 42PF9631D

The TV is on protect mode.

Try first leaving the TV power cord unplugged for some times, let say one hour or so.

Also ensure that the fault is not coming from a faulty receiver box sending bad signal, check if you get same problem with no receiver box or dvd connected.

If that does not work, and you keep having a flashing led on front of the TV, and tv turning off by itself after a while, that indicates a fault condition.

The flashing light indicates a diagnostic state called protection.
When the TV goes on protection there are only two possible reasons.

1The internal circuits are jammed because of electrostatic charges accumulating on capacitors, or because of a wrong voltage read by the main chip on your monitor controller board. this started the protection circuit.

2 The protection circuit detected a wrong voltage or abroken contact, identified an internal fault and kicked in , startingthe flashing light.


If you are in situation one, then theTV will reset just unplugging power cord for one or two hours,sometimes even minutes.

If you are in situation 2 , then there is an internal fault.

Common faults that can occur are a blown capacitor on power board, a convergence IC has blown, or a fault on Digital board.

Check also the video cable or any external connection cable, if the cable is shorting, or the connector is bad, you can get same flashing state because of the video cable.


If under warranty contact the manufacturer ringing the number on the user manual

If you want to repair at your own expenses, just locate any good qualified repairer.

Posted on May 21, 2009

  • 21 Answers

SOURCE: magnavox 15mf605t/17 15'' LCD HDTV won't turn on

Have similar TV. If it is set to the PC source, it goes into standby when there is no signal, like a regular monitor. Even though the monitor is in standby, you can still press the Source button to change to, say, HD input, and will use the familiar on/off action when pressing Power on the remote.

A little weird, but I've gotten very used to it.

Posted on Jun 26, 2009

  • 8457 Answers

SOURCE: tv with sound but no picture

ur video inverter board is ded.
Need new one.if u lucky it just lose.

Posted on Aug 14, 2009

  • 5 Answers

SOURCE: Phillips Flat TV Model 20pf4121\105 (Flashing green led)

I had exactly the same problem When the TV was switched on all I could see was a flashing green light. After cheching the TV internals and not seeing a problem including the power supply unit which looked and checked normal. Here is what I did to get M TV working again.
Disconnect it from the power supply. Hold down all the buttons simultaneously i.e. the on/off, the volume, the programme, menu buttons, all of them simultaneously and Plug it into the power supply again.
Lo and behold My TV jumped back into life after an absence of about 4 weeks.
Try it yourself exactly as above.

Best of luck.

Irishfreethinker

Posted on Sep 22, 2009

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1 Answer

No picture or sound magnavox 42MF231D/17 only 2 of the green blinking lights are working


These blinks [flashes] are fault indication (Error Codes). From the number of blinks occur at one time switch ON, you can get an idea about the faulty circuit section inside it. This will make repair easy. These are called blinking codes. Make sure about the exact number of blinking of the standby/power LED, by switching On & OFF the set, for at least two times. Count it carefully. If you wish to get some details, check the site linked here. It has details about blinking codes, and fault locating procedure, to many popular brand TVs and other devices. http://electronicshelponline.blogspot.com/

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Call Magna vox tech support. Sounds like you need a new set. They may have you factory reset the set.

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soudns like your color wheel may be going bad or the fan. Fan would be the first to check.

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it sounds like the cable/satellite connections are inpoperly connected

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42'' Magnavox 42MF231D/17 with picture/sound problem


Hi my name is Roety,
I can help you with your issue ,
Sounds like a bad SSB small signal board
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If I have helped you with your issue please click accept.
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Thanks

Oct 31, 2009 | Philips Magnavox 42MF521D/37 Television

1 Answer

Magnavox 42MF231D/17, screen just turned black,


power supply or inverter board failing if the power board is the problem it will have blown caps
little cans with puffy tops because the caps have vented if you don't see that then your inverter has died that model id out of production so try shop jimmy. com

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1 Answer

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Common problem on this tv, ceramic capacitor beside horizontal transistor.Need be Replace . 561K 2KV

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2 Answers

42mf231d/17 fails to turn off manually or w/ remote.


Magnavox suggests unplugging the tv for exactly 10 minutes to reset the tv---try that---or call the service number for assistance

Oct 25, 2008 | Philips Magnavox 42MF521D/37 Television

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