Hello My name is brett, i have a toshiba 42sl417u .... my question is ... my tv turns on and works but the only things that do not work are the hdmi ports every port on my tv works but those also the hdmi ports are on the same board that all the other ports are on so how is it that the hdmi ports are the only things that do not work i can also tell you that the devices i connect to the hdmi ports on my tv see the tv but its like the tv dose not notice that there is any thing connected to it ... do you think that buying a replacement board will fix this issue please help the borad's part number is "V28A001251A1"