Question about Vizio P2 42 in. HD-Ready Plasma Television

6 Answers

Vizio no audio no video

I have a vu42l, the other night it went out, i called vizio they suggested the inverter boards, i called them back after inspecting those boards which show no sign of heat or damage they informed that the main board controls audio, which also shows no sign of damage, i figured that both audio and went at the same time it might be the power board but the tv does power up (the amber light still turns white when switched on) i hope this gives you enough info, if you can please help because the vizio service center and vizio has been little help, by th way the set was 20 days out of warranty

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  • wunder-shon Nov 02, 2008

    that was the first thing i did now have it apart thry find the bad part

  • wunder-shon Nov 02, 2008

    that was the first thing i did with same result

  • wunder-shon Nov 02, 2008

    i left it unplugged for 8 hours when it first happened, then tried again after 48 hrs, with same results

  • wunder-shon Nov 03, 2008

    does anyone have any other ideas on this vizio

  • wunder-shon Nov 03, 2008

    where are these condesers located on the corners of what

  • wunder-shon Nov 04, 2008

    i have been thinking te same thing i have been checking the samsung 8 and 9 series and also the sony xbr 5 series any suggestions

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6 Answers

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  • Master
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Hi, in the interests of you getting your problem sorted out, I suggest you phone back Visio customer service, NOT there agent, but the actual head office/distributor for the set, ask for the service manager, and use notes you have prewritten for yourself to tell him how many ways you are dissatisfied with the set and the number of workmates, friends and family that you are going to tell not to ever buy on of those sets. If you make enough fuss in this manner, the common result you will get is for them to advices you to take it to one of their approved agents, and they may well fix it for you under warranty. I have worked as a service manager for more than 16 years, and if you go about it in a non aggressive manner, they will do what you want in the interests of customer satisfaction. It is what most all the majors will do for you at least. Try it. Let me know how you get on.

regards
robotek

Posted on Nov 04, 2008

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  • Contributor
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You might have a short in the power board that puts the tv in stand-by mode to stop it from catching fire. You will need to get it reset by a trained professional and to get it checked for any other things that may have caused the short. Try using the aux option and see if that gives you any picture or sound. The tv has a small on-board battery to remember time and other stuff. Try doing a full reset by unplugging the power and cable cords and let it sit overnight and then try it. If the problem persists, you will need a professional to come check it out and to get it fixed.

Posted on Nov 03, 2008

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  • Vizio Master
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All the above tests and poss problems are most likely good remote diagnose, but only so much can be done from a key board, a hoard of test gear and tech manuals is required to fix these modern big screens, when all is said and done this model now sells for less than $900, you will most likely have $500 mor $600 in it when the repairs are done, why? because they don't fix individual parts on circuit boards anymore, they replace the whole board, most are $300-$400, then allot of labor. Do yourself a favor and scrap this TV and just buy a new one.

Posted on Nov 03, 2008

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  • Master
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There are 4 condensors in each corner if any of them are popped up there will be the peoblem.they are supposed to be flat on top not rounded

Posted on Nov 03, 2008

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The TV is going in protect mode because it detects an internal problem, try leaving it unplugged for a longer time, let say one hour or two.
Basically, what happens is that the TV does not start because it detects that there is an internal problem, such as a wrong voltage, a bad component, overheating etc.
When you unplug power and restart it, you reset the internal circuit, and the TV will restart, not detecting the internal problem.
As soon as the TV gets hot, after staying on for a while, the defective part start giving troubles, as the defective component (probably an IC, starts overheating).

As already pointed by the other expert, from description, the digital processing board. can be cause for the problem as there is no video.
However all the following parts can be involved.

Parts involved can be

Polaroid digital processing board.
Polaroid replacement ballast.
Polaroid Replacement LCD controller

Thanks

Posted on Nov 02, 2008

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  • Vizio Master
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Try first unplugging power cable for ten minutes, see if this can reset the unit.

Posted on Nov 02, 2008

  • Ginko
    Ginko Nov 02, 2008

    Hi there, sorry I was away.

    If there is also no sound, then the inverter board has nothing to do , an inverter board fault affects only display and video.

    No body not even a technician can tell you what is wrong from here with the TV without testing it, unless an error code is displayed.

    I understood that you loss both audio and video at the same time, and the TV went in standby mode.

    Possible faults are:

    Power board: this is the first thing to check, it is not true that if the power board is faulty the TV won't start at all.
    If one of the capacitors on power board is faulty the TV will probably start and stay in protect mode (standby).

    Sustain cards (Ysus etc.) this are easy to test, by removing one by one the sustain cards and starting the TV for few seconds, if the sustain card was faulty the TV will start regularly. TV must not be left on for more than few seconds without sustain card.

    Main board: that is more difficult to troubleshoot, you need necessarily to follow troubleshooting diagrams on service manual.

    Short or fault on other boards (sound, signal board, controls etc.): this also requires testing the board components, even if boards are smaller than main pcb, always better having service manual.

    The whole thing is not easy job as it can look, if you do not have experience in fixing electronics, and as the warranty is just expired, you can call factory and ask a for warranty extension.
    You will be charged a fee that is surely inferior to the cost of repair, and will cover your product for one extra year.

    To call manufacturer you can use the phone number listed on the owner manual.



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Would you like a digital copy of the Vizio VU42L LCD TV Users Guide for easy searching of terms and quick reference?

The Vizio VU42L LCD TV manual is available free in pdf format, just follow the link below (& Click FREE):

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on Jun 06, 2010 | Televison & Video

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840592c.jpg

Have you lost your Owner's Manual for your Vizio VU42L LCD TV?

Would you like a digital copy of the Vizio VU42L LCD TV Users Guide for easy searching of terms and quick reference?

The Vizio VU42L LCD TV manual is available free in pdf format, just follow the link below (& Click FREE):

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on Jun 06, 2010 | Vizio VU42L 42 in. LCD TV

1 Answer

Vizio VU412L 42" made a


The pop has been generated by the explosion (literally) of an capacitor from the power board of the tv. When that happened the power source has been shorted and, if you're lucky, it went in protected mode. Fixing that is a relatively simple job - all you need is a soldering iron and a basic experience in using it. Follow this
http://www.youtube.com/watch?v=YCSNWi3UHf4
If you're unlucky the entire source has been fried and it will have to be replaced - here's a good one
http://cgi.ebay.com/VIZIO-VU42L-FHDTV10A-POWER-SUPPLY-DPS-283BP-C-REV-S0-F-/370477438027

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Have you lost your Owner's Manual for your Vizio VU42L LCD TV?

Would you like a digital copy of the Vizio VU42L LCD TV Users Guide for easy searching of terms and quick reference?

The Vizio VU42L LCD TV manual is available free in pdf format, just follow the link below (& Click FREE):

Download Vizio VU42L LCD TV Manual


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