Question about Samsung LA22A450 22 in. LCD TV
I have an old Samsung (about 12 years) that intermittently goes to either gray fuzz or horizontal black & white stripes with a static noise. This occurs when either the DVD player or the cable box is plugged in (I have a coax converter for the DVD player.)
Sometimes if I monkey with the cable, I can get the picture back for a few minutes. But even if it's tightly screwed in, it doesn't keep the picture for more than 5 minutes or so.
Since it's happening with both cable TV and DVD, I am assuming that there is something either wrong with the coaxial plug on the TV set or with a connection from the coaxial to another component within the set. The other possible contributor is that my two-year-old has been randomly pressing buttons and changed the settings. However, at a glance, the settings seem to be OK. (I lost the instruction booklet years ago.)
Thanks! About 2 days now, I'm experiencing horizontal white stripes and some colours going to gray fuzz. Some shapes are still drawn properly, but the shaded part of the image are filled with matrix-like image..
The tv is less than 1 year old, and I am assuming that it is caused by the coaxial cable or the coaxial plug on the tv, as I tested another one with the same result..
If it continues I will probably see the dealer for a support or an exchange.
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Posted on Jan 02, 2017
You need to check the back light is still on when the screen is blank (check through the back).
If the back light is on, need to change the Powwer Board.
no back light, need to change the inverter.
Posted on Feb 06, 2009
SOURCE: lcd tv hookup
Ive got 3 samsung tv's (lcd, plasma, DLP) and I use HDMI cables on all of them. Its the only way to get the full potential out of the tv. When you use the red/white/yellow RCA cables the signal is anolog aka "old technology". Component cables are good but HDMI is the best. HDMI is a digital signal and thats what all the components that go with the tv should be run on. If your dvd player does not have an HDMI output I would suggest getting one that has that output. As for the cable box most require you to upgrade to digital cable in order to get one with an HDMI output. If you dont want to spend the money on new components and run what you have now the picture will stay mediocre at best. Good luck hope this helped
Posted on May 11, 2009
COULD BE GENERAL SERVICING, THIS INCLUDES DRY JOINT..RESOLDERING THE HEATED PLACES, ON BOARD, SECONDLY, IF PICUTRE IS COMING AND GOING OUT CAN BE ALSO A VERTICAL IC PROBLEM, NOT TO REPLACE, RESOLDER THE UNIT AND TRY TO ON, SHOULD SOLVE THE PROBLEM
Posted on Oct 14, 2009
It sounds like the T-CON board problem, you can try reseating the connector first, the board is mounted under the metal shield which sometime can be difficult to get to.
If you are going to DIY and have proper tools and know safety precaution then please read on:
Please see my basic troubleshooting guide here:
Posted on Jul 07, 2010
to put this simply ive spent almost all day advising on this exact problem have alook at my fixes and it will show you the problem but to put it simple you either have connected the wrong cables ie-- rca vs caroma the best way to fix this is to correct the setting in the output on your dvd player it needs to know what signal to send the tv ie rca caroma or hd cable
best of luck let me know if you need further help
sonic boom electronics
Posted on Dec 28, 2010
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