My Sony TV, don’t know the model number at the moment. Had an issue with the bottom part of the screen. It literally looked like the screen was cracked and the top 3/4 was fine.

As soon as I pressed anything to do with the OSD. Whether it was the menu, info or input select. The entire screen was fine.

I ended up unplugging it for a few minutes and plugging it back in. All is fine, has been for about a month. I suppose the chip that selects the inputs was faulty. And the chip that displays the OSD is after that input selector chip.

I know it’s not the same problem though. If your client hasn’t unplugged the TV for 5-10 minutes. Have them try that, just the power cord. I left everything else, input wise, plugged in.

KOT