I now have 2 fairly old but rarely used Epson projectors that will not respond to the remote controls. I have tried the obvious solutions like different remotes, replacing batteries (as well as checking them with a meter and checking the IR output with my camera phone) so I know the remotes are good. I am thinking the remote control option has some how been disabled (ex government projectors). These particular projectors only have four buttons on the top so I cannot access the menu without the buttons on the remote. Just wondering if there is any way to do a "hard reset" to clear any possible configuration settings that are blocking IR control, or any combination of button pressing on the projector to let me back in? Model numbers are EMP-52 and EMP-73. I have instruction manuals for both but there isn't any thing in them that helps.