That it's become legendary in the number of folk that answer "it's the T-con board." Frankly if you feel it's that or someone told you that, why not change it?
In other words, it's not fixing it most of the time since folk have latched onto it as the cause of all issues. But it's pretty cheap and far cheaper than a service call.
Green splotches on dark, Light pink Splotches on light objects