Need help resetting Bose 123 factory settings

[BoseWoes]

In order to configure the Bose 123 system settings I have to place my DLP TV's Source mode to DVD. Now I can select the Boise 123 "Systems menu" on the remote control to change various settings. In my haste, I accidently changed the video format from NTSC to PAL. PAL is only supported in TV models sold in Europe and other countries. The moment I changed the Boise setting to PAL my TV went blank and told me the "Mode Not Supported". OK, so now I need to change the Boise factory settings back to the default, but the only way to do that is through the Systems menu, which I can't see now b/c my TV doesn't support PAL.

So I basically need a way to reset the Boise 123 factory settings without going through the TV System menu options. Is there a way to do that with some combination of buttons on the actual device?

Thanks for any help...