actually, i used kuroreader to get the hours off my panel. however, its not compatible.with the 111fd. here is a link http://www.avsforum.com/t/1175615/free-kuroreader-software-for-pioneer-krp-500m-krp-600m-pro-101fd-pro-141fd
you dont need to remove the back panel to tweak the voltages, you simply need a console serial connection to the kuro via a pc. check the red tint thread for more details. people in that thread were not only changing voltages, but also resetting counters that are vital to the kuro's nominal functionality. people who were experiencing red red tint reset their counters and reported inky blacks. however, because the kuro uses these counters to make voltage adjustments as the panel ages, those people experienced further issues later, since the kuro's counter was no longer accurate. perhaps this is whats going on with your set. those users reportedly have to make continued voltage adjustments to override the innacurate adjustments made by the kuro.
before trying that, i would remove your soundbar from the equation and try different inputs on the kuro. remember to set both your bluray player and kuro to rgb limited. try a different hdmi cable, different bluray player to try to isolate the issue. it doesnt hurt to try at this point.