Question about Samsung Televison & Video
Samsung 50inch smart TV. Sound is still on
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Posted on Jan 02, 2017
SOURCE: samsung lcd tv
that is deafinatly a fault. take it back to the store asap if you can. what the tv needs to be fixed is first replace the main and power board and if problem persist the lcd panel will need to be replaced.
Posted on Nov 07, 2007
SOURCE: Screen Problem
I have been trying to fix one of these tvs and found out from a repair man that the lower half going blank means a problem with the lower buffer. and that is also what the manual I downloaded says.
have you checked that?
Posted on Jan 25, 2008
Hi, IK circuit is engaging which basically means the picture tube is getting tired, the only "fix" is temporary (may get another year out of it). You have to increase the "screen control clockwise".
Remove back of set, follow large black or red wire attatched to picture tube down to the flyback transformer, mounted on flyback are two black controls, one is focus (leave it alone) the other is "screen", adjust it clockwise approx. 1/4 inch, remember that this is a high voltage circuit so use one hand in the set the other hand out of the set at all times,any questions ? e-mail me back, good luck, BMW Rider
Posted on Feb 27, 2008
SOURCE: Screen Problem
hi....Your tv picture is managed by several boards, the two specific ones are the ysus and the xsus. The Y controlls the horizontal pixelation and the X the verticle, if you are having horizontal problems then its the Ysus thats faulty, on this particular set, the Ysus board has two accompaning buffers that are particularly troublesome. I've had more than one of these sets in the shop recently with the same ailment.Sounds like your buffers are starting to go out. The screen is split horizontally by the two long skinny buffers attatched to the Y main, if the bottom one has one leg in the grave you'll be getting a partially black screen or no picture at all. The colored lines running through the screen are more typical of a failing buffer. Are you interested in taking this set apart and putting a couple hundred into fixing it? When buffers go they usually take the Y main too. Worse case scenario you're gonna be out about $350 dollars to fix it yourself. Best case, a ribbon is loose on the bottom buffer and with a dismantle you'll be able to connect it again..
thank u rate me!!
Posted on Feb 12, 2009
Look at the power supply first; look for burnt parts, bad capacitors, etc.
Please post back what you find. It sounds like at least you do have the 5V standby power supply working but the main supply is not getting the 'ON' command from the main board, or the power supply is gettin ght e 'ON' signal but failed to turn on.
Posted on Dec 02, 2009
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