Question about TruTech PLV16190 Television

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Tv comes on but only shows a pic for a second or two and has no sound aswell pulled off the back and the only thing i see wrong is two compasitors are bulged up on the top and they are both next to each other on the small white circut board.

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You have found the problem.
If this set is under warranty you should return it to get it repaired/replaced by the seller. If not then;
This sounds like the power supply board has failed. The electrolytic capacitors on the board need to be replaced.

IF YOU KNOW HOW TO WORK WITH ELECTRONICS REPAIR(soldering ) or have a friend with knowledge/skill you can fix it. If you can not solder then you can replace the board.

>Unplug the set and any cables.
>Remove the back cover.

>look at the capacitors on the power supply board. If the top of any of them are bulging up then that is the problem.

>You will have to replace ALL the electrolytic capacitors except for perhaps the large one.
>Disconnect and remove the power supply board. Handle by the edges to prevent contaminates and static electricity.
> Use ones with the Low Equivalent Series Resistance ESR rating
> Use ones with the same farad rating

> Use ones with the same or higher voltage rating
> Use ones with high temperature rating
> Install one at a time to prevent mix-up and keep the polarity correct.

> Leave a space between the PC board and the bottom of the capacitors for expansion. They heat up.
> Replace power supply board and reconnect cables..
> Replace back cover.


THIS IS AN INDUSTRY WIDE PROBLEM AFFECTING MANY COMPANIES AND PRODUCTS.

Sources for some good capacitors are www.digikey.com or NTE. Try nteinc.com for a local outlet of NTE products.
You can also search for other sources. Some companies even sell all the capacitors in a kit.


Total price of parts should be < $30.00

Yes you can buy a new power board but if the capacitors have not been replaced they will eventually fail also.

Posted on Mar 25, 2011

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