Question about Samsung LN46A550 LCD TV
They call that problem pixelation and the test I did was replacement of the tuner board and the video data board with no improvement or solved problem. And the only solution was I bought a new a flat wire connecting the tuner board and video data board,cleaned the terminals of both boards. And sure enough problem solved.
Posted on Jan 29, 2013
It will be good to have a ccheck within and see if there is any visible indications of failure. check if power capacitors have bulged out if so replacce.
But I thnk the possible fault can be soldering faults/problems in the drive/converrgence circuits.
Dry soldering is the greatest enemy and I think that the parts exposed to heat / cool in due course of time have the drying of the solder.
So use a good iron carefuly not to bridge circuits but to solder suspeccted joints. IC pins and connector joints. use good quality solder with good lighting .
comment and credit if this advice helps.
Posted on Aug 26, 2010
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Posted on Jan 02, 2017
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