OK, time to pick some of your brains, please.
I have just acquired a working Pentax K-X which takes images fine, but when the image is displayed on the rear LCD, they are solarised. When I use live view, exactly the same problem. However this does NOT affect the screen when it displays the camera menu, nor the images captured on the SD card which are absolutely fine. I tried a reset, then updated the fimware to the latest version, but the problem persists.
After much searching on the net, I found one instance of a similar issue with a Fuji X30, but that was because the camera had been dropped. I've also discussed this with my camera mates, including a couple of dealers, and they can only think of one example which was an Olympus, disagnosed as possibly being a screen/connector problem, but never actually investigated.
Now a search of the net shows this is a not uncomon problem with LCD TVs, and it seems to be component failure regarding the conversion of the TV signal into a viewable image on the screen, with mention of the T-con board as being the prime suspect. Now I have not a clue whether a similar system is used to convert the camera's sensor image to the LCD display, but given the age of the camera, and the near-impossibilty of a repair I plan to leave it as-is, treating it as a digital version of a film camera-i.e. no replay!
So has anyone encountered a similar problem with either a Pentax or any other digital camera's LCD display, and if so, did you bottom the cause?
I've attached a photo of the screen to demonstrate the display issue-I'm almost disappointed the recorded image is not also solarised!