Question about Televison & Video
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Posted on Jan 02, 2017
SOURCE: power lights keep blinking
The power light indicates a problem (usually) with an internal problem. Usually there is a pattern to the light. (for example 3 blinks then a pause, 3 blinks then a pause etc.)
A service tech can use the code to help determine the problem.
Posted on Jan 05, 2008
I would try leaving the TV unplugged for 30 minutes to let the TV reset itself.
If that doesn't work, most likely the TV has a power supply related problem. The most common thing to go out is the circuit board that supply power to the screen. Commonly called a Backlight Inverter Board.
I can't say it's 100% the problem because I can't actually look at the tv over the internet.
If by chance the TV is still under warranty, go that route.
If not under warranty and If you have some electronic experience, you can purchase a Service Manual over the internet and diagnose the source of the problem and fix it by soldering in the new part. The Service Manual will give you circuit diagrams, test points, and part# lists. Usually, cost under $20.
I hope I shed some light on the subject for you.
Posted on Jun 28, 2009
Check back light inverter,if ok then check the 12V and 5V line,if not OK probably the IC in the power supply is defect ( F9222 )
Posted on Jul 20, 2009
Assuming the television is out of warranty and that you can complete the repairs yourself there is a new and a recycled power unit available for purchase from Partstore.com if that turns out to be the problem. However if the unit is in warranty you would call 800-237-4277 to get the contact information for your nearest Sharp authorized service center and bring it in for repairs. When you call a representative can transfer you to a representative that can attempt to walk you through an industrial initialization of your television and then provide service center information if not successful in or out of warranty. A blinking power light could be a loose connection or loose connection to inverter and other things in addition to what was previously stated.The pattern the indicator light is blinking in is a code that indicates what the problem is.
Posted on Apr 28, 2010
Surge protectors aren't perfect... If the surge was big enough and long enough then it can cause problems. Most manufacturers have on-board protection as well. That's not perfect either. Often the surge does nothing more than confuse the microprocessor (computer) that controls all aspects of your television. The fact that the red light is blinking means that your set is trying to protect itself. This can happen for one of two reasons. Something in the set has failed. Usually the power supply inside the set possibly also a trouble in the scan section of your set. These are normally a shop repair. The other thing is when the microprocessor is confused it will do nothing further until it's reset. To reset the processor simply unplug the set from the wall and wait 10 minutes. Plug it back in and if it works then happy viewing. If it doesn't then you will need a repair.
If is a failure caused by a failure in the grid that delivers power to your set then you are usually able to file a claim for the repairs. Contact your local power company. explain what happened. If it's their fault then usually they will pay for a repair. I know the PG&E does.
Posted on Jun 23, 2010
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