Question about Vizio GV42L 42 in. LCD Television

8 Answers

Picture but no sound

I have sound but no picture have sound picture flickers tries to work then no picture still have sound?

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  • ham solo Feb 28, 2009

    we had tv diagnosed and they said it was the main board needed replaced. other sites say inverter suspect.what say you?

  • ham solo Feb 28, 2009

    i checked parts.com 110.00 the tv is a 865.00 piece of ****. 90 day refurb. if it sounds like main board to you, is the install technical or is it something i can perform? or special tools, or can i use you guys to walk me through it?

  • ham solo Feb 28, 2009

    can it be the inverter if i can see light at all 4 vents at rear of tv even without video and the main board is 110.00 @ parts direct, see previous install query.can i install?

  • ham solo Feb 28, 2009

    does anyone have any advice for me regarding installation. level 1 hardest, to level 5 easiest.

  • ham solo Feb 28, 2009

    already tried this method as well as 30 sec. hard restart. Installation?

  • ham solo Feb 28, 2009

    CAN ANYBODY ELSE HELP?

  • ham solo Feb 28, 2009

    did that to. all i need is someone who can tell me the level of difficulty with self install of the main board and any additional recalibrating, or setup?

  • ham solo Feb 28, 2009

    install advice,PLEASE!

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  • 319 Answers

Main board is shot, my suggestion is to buy a new set. Im sorry its not a very quick fix...

Posted on Feb 28, 2009

  • Patrick Cowan
    Patrick Cowan Feb 28, 2009

    self install wouldnt be hard as long as you realize where all the connections meet other components, and if soldering is required (im not sure on this particular model) you will need a steady hand and plenty of light. ultimately its up to you, but my advice is to replace the set. I have a vizio myself, and have had certain problems with the tuner. I wouldnt recommend this brand for a replacement.

  • Patrick Cowan
    Patrick Cowan Feb 28, 2009

    ALSO, if you attempt this repair, make sure the TV is unplugged for a few hours, just to make sure that the capacitors have discharged, otherwise you risk static discharge, or a nice jolt to yourself!!!

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  • 3,614 Answers

DO unplugging your TV for 8hours.


Posted on Feb 28, 2009

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Hi im josh in cebu phils.may i help you? friend if the TV wont display the screen only the sound. try to check the connection of the antenna. then try to reprogram the TV with its channel and try to load it.these will help you about the problem so just try it. good luck.hope i helped you.

Posted on Feb 28, 2009

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It tends to be the problem of main board fault . You can get one from the link below .

Click this link to order parts


Hope this helps .

Posted on Feb 28, 2009

  • SAM ANDERSON Feb 28, 2009

    The installation part is bit hard .

    Leave to tv technican to do the installation work .


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  • 85 Answers

Inverter board (which drives the lamps) shut off after a few seconds that makes the picture problem


its the problem of inverter board but that board is not available with the company nor online with any other online websites.as the cost of new tv will be near to same .

Boards are also available from tigerdirect.com. The inverter board is over $300 and the power board about $105. The main board is over $400.
instead of replacing the inverter board its advisable to get the new tv with a full warranty and great feutres and all new parts again.

thanks.
please do rate the solution.

Posted on Feb 28, 2009

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  • 326 Answers

Its the main board.you can get the main board at www.partstore.com but its a costly issue to get it.getting new tv is also advisable in such case.hence the option is yours.to get the board or the tv.as the problem is started it can blow something else later or now. if the tv is very old get the another tv.

Posted on Feb 28, 2009

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  • 165 Answers

Either the display ic on the board is faulty or is loosened .repairs needed.

Posted on Feb 28, 2009

  • mradviser Feb 28, 2009

    its the main board
    rate the solution accordingly

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Hello sir; Let me try may be it work, I believe your TV connect with control box, If not forget about it,if yes, then unplug the control box and TV shoul be off too, one minute later plug in power, until time clock display then turn on the control box TV should back to work now.

Posted on Feb 28, 2009

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