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Magnavox 32mf605w 17 no picture.

Blinks once when first turned on and goes black,has sound.

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  • dctc1 Nov 22, 2008

    Magnavox 32MF605W/17.Blinks once when first turned on and goes black,has sound

  • dctc1 Nov 23, 2008

    Magnavox 32MF605W/17.Blinks once when first turned on and goes black. Has good sound.

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7 Answers

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Hi..
this is due to a hard fault to prevent from further damage
u have to take it to a service personel

Posted on Nov 23, 2008

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LCD's inverers are used to channel the dispay just in the same way a latop or lcd pc monitors do, jamie is correct in his diagnosis of the TV because it is to do with the backlight inverter or the inverter coil (this is a coil that is designed to burn out in the event on failure, but not all lcd's have them) this will be a circuit board connected to the screen itself and you can't always tell which has gone, hence to measure the continuity like jamie says.
To replace them is a different story, tracing spares is hard and i would recomend that you call Philips for instuction on how to replace them and how much it would cost


regards

Posted on Nov 22, 2008

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Hi,

Offhand, your description indicates that the unit has gone into protective mode, that is to prevent further damage to the circuitry. this is not a firmware glitch that could be corrected by a reset or unplug from the mains. This is a hardware fault and could possbibly be:

  • the inverter board (most likely);
  • the key control board (likely);
  • the CCF (cold cathode florescent) lamps (least likely).
This would require opening the unit for a look and see. This of course would require a fair familiarity of electronic components/circuitry and safety procedures, use of a DVM and a soldering iron. It would be to your added advantage access to a service manual or at the very least a schematic diagram with voltage readings. Should you be uncomfortable performing a DIY (do-it-yourself), perhaps your best bet would then be to seek the services of a qualified professional.

Just a start, do postback how things turned up or should you need additional information. Good luck and Thank you for using FixYa.

Posted on Nov 22, 2008

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It would be the problem that your tv set is having is coming from the power supply board,either
the board is defective itself or some of the components around the power supply boardare defective like a shorted capacitor or a burnt out resistor can cause this kinds of problems. This is why the tv set is turning on and then off because one or more than one component in the power supply is keeping it on protective mode.Moreover try contacting magnavox see if they have this board,if they do go ahead and get it you should be able to change it out your self with the instructions that come with the board.If for some reason they do not have the power supply board,take it to your nearest tv repair shop depending on the tv repair shop it should not be more than 200 dollars or less to get your tv set up and running ,but it depends on the tv repair shop.

Posted on Nov 22, 2008

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The TV has an internal failure with the power supply or the back light inverter board. If your TV is less then a year old still under manufacturers warranty.
If you know how to use a multimeter, you should be able to find the board that has failed by measuring the voltages from the power supply to the other circuitry; if the voltages are measuring good then is more likely a defective back light inverter board.

Posted on Nov 22, 2008

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Check this link...

http://www.lcd-television-repair.com/

Hope this will help

Kevin.

Posted on Nov 22, 2008

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Did you check fuse and inverter .

Posted on Nov 22, 2008

  • SAM ANDERSON Nov 22, 2008

    Unplug the power chord for 30 minutes and plug back the power chord after 30 minutes this will reset the tv .

    If there is only one blink it indicates there is low voltage as input better have a check over the input power supply to tv .


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Hi my name is Eric,
I hope I can help you with your issue ,
 You main a bad mainboard, a repairman will charge about $450 to replace it , use google to try and locate one yourself
 
 
If I have helped you with your issue please click accept.
If you have more questions you can still respond
I will reply asap
Thanks
Eric

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