Pioneer PureVision PDP-5040HD 50 in. Plasma HDTV "5040" Questions

I have a pioneer pdp 5040 plasma and it just died on me. It will turn on then turn off after 3-4 sec. The standby light flashes 3x pauses then flashes 3x again, can I fix this PDP-5040 turns on then ...

black square in the middle of the screen at times the black square appears in the middle of the screen,if I turn off the tv it will disappear but problem comes back again later,sound is ok but picture

Pioneer PDP 5040 Plasma Stays on Standby. When I power on both the media receiver and and the display, the display stays stuck with no sound or video, only showing the power (green LED) and standby ...

Polaroid PLA-5040 Powers on but no picture. I see so many here with no sound/no picture issues: ISSUES: 1. IF sound main fuse/s are good. 2. If no power or standby check main fuse, standby power ...