Originally Posted by _parodius_
Thanks for your reply!.
Good news guys, the problem has gone...magically...
After coming back home from work, i tried to see if the settings were kept unplugging the PJ from the wall and they were kept. I tried again without unpluggin and they were kept also...
The issue has turned into a mistery. Do you guys know if the PJ has any kind of little battery that is charged after few hours of operation to keep the settings on the memory like computers (i mean as the little cell that keeps time and date in BIOS)?
I don't like when problems disappear without explanation, it means that they can come back the same way....
Thanks a lot for your help!
I don't know, but I am pretty sure there is no battery in the unit. There may be a large capacitor, which you could test by leaving unplugged overnight.
But I still think the best is to leave it plugged in. As for storms and unplugging it while traveling, I highly recommend a quality surge protector. I use a hospital grade one-time blow surge outlet. It will sound an audible alarm when it's tripped and the outlet will stay dead until you bypass it. Since it is one-time only, once it's tripped if you choose to do the bypass there is no more protection and the indicator light will not be lit. It's pretty cool. It was $30 for just the outlet. But it's clean on my ceiling and I haven't had a surge yet.
In my last setup, I had the power routed to a closet and used a battery backup with surge protection and power filtering to power the projector. Was nice so that when there was a power outage, I could shut down the projector properly.
But of course the best protection is unplugging. Just not practical for myself.