Being in the TV business, here is my normal experience with every HDTV
that has ever come in.
#1. No sams coverage, so no scematic. Order scematic, special order not
in stock, wait 3 weeks for manual.
#2. Decide better to replace entire circuit board since there are no
human replacable parts or way to troubleshoot 380 pin surface mt ICs.
Order board, not available, order individual parts, special order, wait
3 more weeks.
#3. Put in new part and hope and pray because if it isn't fixed, going
to be another 3 weeks.
#4 Cuss and swear. Why in the FU** do they build this crap and expect
repair???