I have a samsung 42 inch flat screen it is less then a year old i seem to have ALOT of problems with it turning on it trys for about 5 minutes and then when it finally does turn on it has all sorts of distorted colored picels all over the screen then i have to turn it off and then on again and it works fine, it also has wierd blocks that are slightly discolored about 4"x4" sections
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check out for the convergence ic on the convergence board that ic must be faulty and it needs replacements.there are two such stk ic that both needs to be replaced as replacing 1 ic will not solve the problem.
You have 2 distinct problems that should be addressed separately. Please repost the Samsung problem. I will address the Sony problem here.
If the "shadow" makes the picture seem somewhat of a 3D one, the problem is with the convergence circuit. This could be as simple as bad connections on the pins of the convergence ICs or defective ICs. If you can solder and would like to attempt the repair, update this and I'll provide more details and instructions.
THIS HAS NOTHING TO DO WITH CONVERGENCE or any of the stk integrated circuits.There are few capacitors close to the vertical output ic, they are usually blue or red (could be 1000uf 50volts for e.g.)That where the problem is
the person you talked to at samsung is more than likely a customer support rep that does know anything but what his computer tells him. i have seen this symptom several times in many makes and models. if you can give me your full model number i will give you a part number to fix this issue.