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Backlight not on green indicator light on - Vizio Televison & Video

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  • Arthur Peloso
    Arthur Peloso Feb 01, 2010

    the power supply is good

  • Arthur Peloso
    Arthur Peloso Feb 01, 2010

    the power supply is good there are two inverter boardl i notice when i turn on the power tne one converter board a blue led com on the slowly goes or

  • Arthur Peloso
    Arthur Peloso Feb 01, 2010

    the tv is vizio vw42l-fhdtv-10a as i stated befor the green indicater light is on there np picture and no sound ,the power supply is good. when i turn the power the led in one of inverter 's glows for 3 sec

    thank you art

  • Arthur Peloso
    Arthur Peloso Feb 01, 2010

    vizio lcd tv model vw42i-fhdtv-10a
    power light stays on.no picture and sound and no backlight
    when i turn the power on one of the inverters led glows for 3 sec.

  • Arthur Peloso
    Arthur Peloso Feb 01, 2010

    how would that effect the sound ? and did i say there are two inverter boards

    artt

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I understand you to be saying that the green indicator light (standby/on) is lit but there is no picture or backlight. If this is correct you more than likely have a bad inverter board. Not extremely difficult to replace if you are competent with a screwdriver. You can get the part at www.partstore.com Remove the back of the case. Probably 2 dozen screws, just go slow and make sure you have them all out. Do not force anything and if you think it will be confusing to reassemble make notes or draw diagrams. Identify the inverter board, usually on the left side of the unit. Unhook all plugs, identifying if necessary. Reassemble unit and you should be done and have a working set. Let me know how it goes and if you need any additional help.

hardrocko

Posted on Feb 01, 2010

  • Kim Yearick
    Kim Yearick Feb 05, 2010

    While you say the power supply is good, how do you know? Did you check for all voltages? Because a light on the inverter lights for 3 sec does not mean the power supply is good. Check for all the correct voltages on the power supply. If they all check good then you are probably correct about the power supply. You say there are 2 inverter boards. Check them both to see if one or both are bad. If they both check ok then you have a bad control board which you would not be able to repair. www.partstore.com should be able to supply the board. Let me know if you need any more help.



    hardrocko

  • Kim Yearick
    Kim Yearick Feb 24, 2010

    After reading all your posts it occured to me that what you are saying is that the unit basicly does nothing, no picture, no sound, green light, which only means that it is on. I would replace the control board. In vizio's this is a weak link.



    hardrocko



    Thanks for using FixYa

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Hi there,

Well first of all please tell us the model number of your TV, so we can help you in details......

Thanks

Posted on Feb 01, 2010

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That means back light inverter board could be bad or power supply board does not provide proper drive volts to back light inverter board so it is not working.
Need to check both boards accordingly and replace defective board to get tv back in business.
Let me know if you have additional question along with exact model number of your tv.
Thanks.

Posted on Feb 01, 2010

  • Shahid Electronics
    Shahid Electronics Feb 01, 2010

    the power supply is good
    =============================
    Good, since you rejected my assistance so good luck.



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