Sony XBR-55X930D Magically turns itself on

[Topcat]

I got paid to take this. It had the typical bad STBY IC on the DPS board. Replace it and life was grand....or so I thought. I've never seen this one before; this TV will just magically turns itself on for no particular reason on earth. I did a hard reset on it (twice) clearing all data & settings out.....will still do this. Even removed the batteries from the remote....in the unlikely even there was a stuck key... Still doing it. I did not set up any of the 'smart' functions, I just fed it a source from a HTPC. It doesn't matter what input is selected.....still does it. No rhyme or reason as to frequency. Stayed off all weekend (thought I had it beat)....then all of a sudden today I was in the workroom working on something else and it came on.... Turned it off....a few minutes later, back on....rinse repeat. Time increments between powering itself up are not the same (I did time it out of curiosity). Sometimes it'll stay off for 2 minutes, the next time it might take 20 minutes.... All timers are off. Bravia 'sync' is off. I'm out of answers.

It otherwise works fine. Gorgeous picture on it....

[lotas]

Try disconnecting the control buttons (joystick) from the motherboard and test without them (the power button may leak and create a false switch).

[Topcat]

Try disconnecting the control buttons (joystick) from the motherboard and test without them (the power button may leak and create a false switch).

...but wouldn't this cause it to turn off or if stuck long enough cause a reboot? It doesn't do either of those. It'll stay on until turned off again.... I will try it though....but I don't think that's it. Spooky.

[EazyBone]

That was my thought also. Disc the buttons. Maybe someone has a remote through wall if your at apartment.