I have its monitor out (both s-video & composite plugs) connected to the projector. I try to enter the setup menu on Denon 3802 but seems impossible to do so. I tried the OSD button without any results ? Any help ?
Make sure the LCD screen shows AMP before you press the setup button. If it still doesn't work it might be worth resetting the amp completely. The manual will tell you how. Just check under Re-Initialization of the Processor.