Problem with the imagen in my haier plasma monitor

My experience with a Haier Plasma 42EP24S is that they have weak software chip that goes bad and can cause a number of symptoms from picture with no sound, will not recognize video inputs, or my current problem tv turns on and off irratically.  This is the second time i have replace this chip, which is the socketed chip on the vga/component/dvi input circuit card.  Last time i had this problem i ended up fixing it myself because sears took over 3 weeks and still could not figure out the problem.  I am working on obtaining this chip, probally get about a dozen so if anyone thinks this may fix there problem as well i my have some for sale.  [email protected] of Malobicky Digital Systems.