Question about iLO 3200 32 in. LCD Television

4 Answers

Mag 3200 lcd tv wont power on. when you push power blue light comes on, backlights come on but no picture or sound, and when i try to power off it wont power off i have to disconnect power.

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  • Rey Garza Aug 21, 2010

    MAG 3200 LCD TV. WHEN I PUSH THE POWER BUTTON TO TURN ON TV ONLY BACKLIGHTS TURN ON AND RED LIGHT GOES TO BLUE LIKE ITS ON.WHEN I TRY TO TURN OFF TV NOTHING HAPPENS WHEN I PUSH POWER BUTTON, I HAVE TO UNPLUG THE TV.SO WENT AHEAD AND ORDERED THE MAIN BOARD ON UNIT PUT IT IN AND MADE SURE I PUT IT RIGHT INTO PLACE FOR PINS TO MAKE CONTACT CLOSED UP AND TESTED.
    RED LIGHT CAME ON BUT WHEN I PUSHED POWER NOW NOTHING HAPPENED RED LIGHT DIDN'T TURN BLUE IT WAS LIKE POWER BUTTON JUST DIDN'T FUNCTION.I PUT OLD MAIN BOARD BACK IN IT AND WITH THAT BOARD AT LEAST RED LIGHT TURNS BLUE AND BACK LIGHTS TURN ON.

  • Rey Garza Aug 21, 2010

    ok i replaced main board but now it wont power on after i installed new board do i have to leave it in there for a while for it to kick in or something . because when i push power button it does nothing red light just stays on, it wont turn blue to power on. placed old board back on to see what it would do and pushed power and red light turned blue and backlights came on but thats all. any other reason why it possibly didnt turn on

  • Rey Garza Aug 25, 2010

    I replaced main board and still nothing. With the old board it at least turns on.When I Put The New board in the board didn't power up when I pushed power button,Red light just remains lit.Any Solutions in why this might be

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4 Answers

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  • Master
  • 1,768 Answers

Your LCD unit will need service.
1. It is a possible LCD controller that may be the problem iwth the "no picture .
2. You may have a logic issue for at the inverter board .
3. There is a possible voltage drop at the rectifier module.
this can only be determined with Electronic testing equipment with a knowledgeable tech , there also may be certain component surrounding said electronic that may have direct cause and effect to the performance of your LCD tv.

Posted on Aug 22, 2010

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I checked voltage goingout of psu and all the voltage is there.

Posted on Aug 20, 2010

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  • iLO Master
  • 19,396 Answers

Re:"Mag 3200 lcd tv wont power on.when you push power blue light comes on, backlights"

That means that the monitor is in forced standby. This happens when an internal fault is detected. The state is called protection or protect mode.

Try first leaving the unit disconnected from power for 15/20 mins, that will probably not fix the problem, but is a necessary step in troubleshooting. (general indications here Why my TV does not start up and remains in standby.Guidelines are valid for all TV. Under protect mode TV will act in different ways depending on model)

The unit is repaired testing the internal component.

This TV comprises few boards: a Button/IR board, a digital controller board, a PSU, an inverter.

If you are a repairer,testing willl start from PSU, following voltages on main board and testing the inverter.

Parts can be tested following this procedure : A full test ...

the best way to contact an authorized technician is by ringing the number listed on the owners manual. Alternatively try Fixya directory here:Fixya directory- Consumer Products Repair

To get parts try ShopJimmy .

Regards.

Ginko

Posted on Aug 19, 2010

  • 4 more comments 
  • Rey Garza Aug 19, 2010

    thanks for the reply ,
    i checked power to psu and all voltage is there
    and my inverter board should be ok because when i push power my back lights do turn on.
    but when i push power button to sut off it wont turn off

  • Ginko
    Ginko Aug 19, 2010

    Re"thanks for the reply ,
    i checked power to psu and all voltage is there
    and my inverter board should be ok because when i push power my back lights do turn on.
    but when i push power button to sut off it wont turn off"


    If back light works inverter is fine

    There is need to test PSU and main controller board. Button board must also be tested. Testing a PSU when TV is on standby requires some skill and training. The tech must jump the control lines, otherwise only the +5V (or +3V) will work. If you have no practice it is easy to short the PSU messing up the whole thing.

  • Rey Garza Aug 20, 2010

    i checked voltage goingout of psu and all the voltage is there.

  • Ginko
    Ginko Aug 21, 2010

    If all voltages are correct and the inverter fires up you have to replace the main controller board.

    Take care.

  • Ginko
    Ginko Aug 21, 2010

    Re:"ok i replaced main board but now it wont power on"

    That means that eithe you installed part incorrectly, or you did not test correctly the PSU.

    Revise the assembly and check all connectors are in place. Check all screws to shassis are in place, they are grounding point.

    If still no power test again PSU.

    I warned already that fixing an LCD is a repair that must be done by a trained person. This unit may look simple, but it is not built to be dismantled and repaired by the user, like for example a personal computer.

    Check connectors and screw, if does not start test PSU again.

    All the best.

  • Ginko
    Ginko Aug 25, 2010

    Re:"I replaced main board and still nothing. With the old board it at least
    turns on.When I Put The New board in the board didn't power up when I
    pushed power button,Red light just remains lit.Any Solutions in why this
    might be"

    You said you tested PSU and inverter. I gave you procedure to test PSU, you said "all voltage is in there" Now if new main board is not powering at all, it is either bad assembly, or PSU that was faulty and has gone completely.Check that all screws are in place, they are grounding points..

    by the way you already refused my help and I got a bad feedback. The question was passed to other expert on your request.

    Good luck.

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  • Master
  • 4,889 Answers

You have a bad main audio/video board. That explains why the controls are not working too. There is a microprocessor on the board that contains the audio/video and controls. When it fails you will experience the symptoms you have described. Since its embedded into the board, replacing the main audio/video board is the only option..

Posted on Aug 21, 2010

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