Question about Vizio L32 32 in. LCD HDTV

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Won't power up

Worked fine in the morning then wouldn't power even after unplugging for several minutes then for several hours. Changed batteries in remote changed power outlet nothing works

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Power supply , need service

Posted on May 02, 2008

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first just for trying--unplug set for a few minutes and plug it back to see if it resets.

If not someone will have to open set and check voltages on Power board to see if there or not.

There is another issue common if set 1-2 years old but that is the set at first has to be turned on several times to get it on--let me know if you had that one and I will still advise you.

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My 42LD450 won't stay on! It turns on for a few seconds and works fine, then the screen flashes then comes back on, then flashes again after a couple seconds, then turns off. Rinse and repeat. Tried...


I hope that you can use the warrantee.

Otherwize, it must be possible to repair it with a fried comfortable with electronic because the problem is not permanent. This kind of problem is usually an old capacitor or a bad connection (soldering).
It would be important to check if changing the ambiant temperature fixes the problem. (I.E. move it to the seller for 2h and try..)

Regards,

Jul 10, 2011 | LG 42LD450 42 in TV

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My tv won't power on after lightning struck and made the power flicker. i've tried unplugging it and leaving it unplugged for several minutes with no luck. is there a fuse?


Check the fuses on the power board. there is one fuse on primary side and one on secondary side.
Take of back panel and follow plug into the tv.where it ends is the power board.always use caution.the capacitors in there hold high voltage even after unplugged for a couple of days.Discharge capacitors before servicing the board.

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10 red blinking lights on my Panasonic Plasma TV, will pause for few seconds, then blinks again. TV will not power on.


This is a power supply issue - found a company that has used power supplies, they sell them for $60.00. We recommend a professional install the board because the voltage needs to be adjusted after the install or you could damage something else. The high voltage in the set can KILL you soe be very careful. The web address for the PS board is plasmafix.com.

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unplug for a couple of minutes then plug back in and try

Oct 29, 2009 | Niko SV3206 32 in. LCD Television

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Screen powers off and power indicator goes out after ~30 minutes


Your message is pretty old but I'll give you my un-copywrited spiel anyhow;
If it just fails to turn on, the main power supply is probably at fault and without some technical background and a couple of test instruments, you will not be able to do the repair yourself. 
What you can do though is; unplug the set, let it stand overnight or at least several hours, remove the back panel and look for a separate board with mostly larger components on it; it will have a ferrite core transformer on it and several larger capacitors which are cylindrical and mounted vertically to the board.

 
Before touching anything inside, especially on that board, allow several hours to be safe since the larger capacitors can hold a painful voltage charge for some hours.  
 
If you see signs of overheating such as discoloration of the board material, it may not be repairable but if you can find a part number on the board, you might be able to buy the power supply and install it yourself.
If there are no signs of heat damage to the board, there may be companies offering to repair it as a subassembly instead of repairing the whole set which could be much more expensive.
If you choose to replace or have it done, the power supply still may not be at fault since most are capable of switching on and off if a downstream problem is causing an overload. 

Sep 01, 2008 | Vizio VX32L Television

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