I have a Toshiba 42HP66 plasma TV with random moving red speckles all over any dark areas of the picture. Other than the speckles, the panel is in like new condition, so I'd like to repair it if possible. I've already confirmed that the power supply voltages are correct, and checked for obvious problems like bad caps.
It uses an LG PDP42X32000 plasma panel, and this seems to be a common problem with LG panels. It is possible to reduce the speckles by readjusting the drive voltages, but I would rather fix it properly. I've read several posts on various discussion forums that say it can be fixed with a firmware update (I'm not sure if it's the TV, or the panel that needs the update). The TV can be updated via a USB stick according to the service manual, but Toshiba doesn't make these updates public.
Can anyone help me find a copy of the update? Even is a special service jig is needed to update the panel, I can probably figure something out if I had the file. I can always pull the EEPROM and use my programmer if I have to.