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We have a magnavox lcd tv 15MF170V/17, and the power went out and wouldn't come on. So my husband took off the back cover and during his fiddling aroun with his fluke, the power started working. So he put it all together and it came right on, but now we can't see the video..it is darker on th eleft side and a little brighter on the right side, and the audio is fine. Before we decide to chunk it, could you tell us which part we may have damaged to cause this? Thanks,jd Lowe

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  • jello67 Aug 29, 2008

    how would we identify this part and is it worth replacing?

  • jello67 Aug 30, 2008

    We cannot locate a tuning button..not really sure what the video controller looks like..

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Just click below and go to LCD TV trouble shooting, and for the spare parts click monoserv.com...

http://www.lcdparts.net/Secure/BasicUser/Default.aspx


www.MONISERV.com


Hope this may help;

Regards,
VOTIT

Posted on Sep 01, 2008

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  • LORETO LACARON
    LORETO LACARON Sep 07, 2008
  • LORETO LACARON
    LORETO LACARON Sep 07, 2008

    Do a hard reset. Unplug the TV and leave disconnected for 4 hours. This may or may not help, but it is a necessary step to restore all internal software codes to their factory settings.There is no tuning button,only you can get fine tuning by using remote.
    If still nothing happen all the above procedure.Then it's better you bring this unit to authorized service center.

    Hope this may help;

  • LORETO LACARON
    LORETO LACARON Sep 07, 2008

    LCD TV TroubleshootingThe defective LCD TV may have the following common symptoms:
    Symptom: No picture on screen but LCD TV still has sound.
    Solutions: The problem is cause by defective inverter. Replacing ivnerter will solve hte problem.

    Symptom: Screen flash on and off between 1/2 to a few seconds, but power indicate light stays on and TV still has sound.
    Solutions: The problem is cause by defective inverter.

    Symptom: Blue Screen but no picture
    Solutions: The problem is cause by defective Main Board(AD Board). In some cases, this problem may cause by the defective Screen Controller board. Thsi board is mounting on teh back of LCD TV Screen.

    Symptom: Power light stays on but no display and sound
    Solutions: The problem is cause by defective Main Board(AD Board) or Power supply board.

    Symptom: No Power or Power indicate light does not lits
    Solutions: The problem could cause either by defective Power supply board or defective Main Board(AD Board).

    Symptom: Screen is half dim and half bright
    Solutions: The problem is cause by defective LCD Panel.It needs to be replace.

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Technical help is much necessary.its located internally.

Posted on Aug 31, 2008

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The inverter of your LCD is either damaged nor loosely connected, see if you can find small piece of board independently connected thru your LCD,

cheers

Posted on Aug 30, 2008

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Send it to a shop and end the guesswork here.there are alot of different things that could cause the problem and its best to let a serbice tech fix it right

Posted on Aug 30, 2008

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Well If I were you try something simple like reset the tv bak to the FACTORY settings this will be on you menu.




Thanks please post

Posted on Aug 30, 2008

  • Jayson Brollini
    Jayson Brollini Aug 30, 2008

    I have been looking for the the answer and when the back of the TV was opened was it on..or plug in
    if so can you smell anything BURNT in the rear of the TV
    ALSO try to use a different conections for your VIDEO like a HDMI or COMPOSTIE cable just try all the video inputes and play a dvd or some media device



    Please Rate your FixYa Expert Kindofcheap



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Look for video output wires. It might have been tripped. Resoldering it could fix the video. Double check any cold solders from neighboring parts as well. In addition, please do check any blown capacitor, resistor and transistor on the circuit board. If you found one, replacing it will fix the problem.

Posted on Aug 29, 2008

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I'll go with michealm's answer

Posted on Aug 29, 2008

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  • 435 Answers

Replace c2074 in the power supply 2200Uf at25volts.

Posted on Aug 29, 2008

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  • 638 Answers

The inter nal settings of the video controller is little bit moved .while you took it off.just remove the back cover again ang readjust the video settings.its like a tuning button.wind it anticlock wise in the open unit and check till the video is not comming right.
thanks.please do rate the solution.

Posted on Aug 29, 2008

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  • 37 Answers

You could have damaged one of the what i call energizers that is used to illuminate the LCD in certain areas.

Posted on Aug 29, 2008

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