I am having the exact same problem with the exact same TV. It started yesterday. Did you ever get the thing to work. I spoke to a Pioneer authorized service company here in Las Vegas and I'm looking at around a $800 repair IF it's repairable. HELP!

My advice. Call an authorized Pioneer repair station. Do NOT attempt to repair this yourself. Pioneer has installed a unique method of making sure the wrong people don't mess with their sets. You stand the chance of disabling your set for good.

Get a pro to fix it.

LOt of Pioneer DEAD sets are Just Bad solder joints If you are good at soldering Resolder all regulators & Connector E12 & H.O.T Last Pioneer We fixed was IC204 5v Reg. & H.O.T with bad solder (Ring Crack) The First Shop they had check set wanted $700 to FiX We Fixed it for Much less $ and Cust was Super Happy .

Thanks for the info. I'll print this chain and leave it for the Authorized Service Co. when they pick up the set tomorrow. The extent of my soldering experience was some radio kits 40 years ago when I was 8. I also bypassed the engineering and circuits classes in college and opted for the programming and business.

This does feel like a failed solder joint however. The set does run hot and had been on most of the day. A neighbor came over so we rturned it off for 5 mnutes and when we turned it back on it failed.

I will definitely post the diagnostic results and the final outcome.

Thanks!