Wow, that really stinks ;(. If it specifically states you are eligible for in home service, then call Pioneer directly and complain about the behavior of their authorized service reps/locs. If not, well, then you definitely have a conundrum. You might end up having to pony up the cash to move the set where they can repair it properly. Did you also purchase an extended warranty?

The folks over at AVS forum are pretty saavy regarding the Pios-
http://www.avsforum.com/avs-vb/forumdisplay.php?f=167

hth,
Pedro