When hdmi upconverting to 720p (with Oppo 981 player) approx 1 hour or so into a movie, the picture will suddenly change to a distorted multi-colored image much like the alien's p.o.v. vision in the movie Predator. The projector is locked up, remote will not function, and must be shut down manually with the power switch on the unit. This does not occur at 480p. After powering back up the image is fine...until it happens again. It is possible that this occurs at the discs layer change, however I can't verify this. Web searches show this to be quite common among Sanyo Z3 owners.
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Possibly either of 2 reasons:
1. Your player is not sending any signal to the Optima meaning it is the one in question and not the projector; or
2. Your Optima lost its input signal, go through the signal source selection menu, try manual selection & set it to where your source/player is connected.
Hope this works out for you, if not pls post again . Good luck and kind regards.
The Sharp XR-30X will display 720P and 1080i. The Blu-Ray player is trying to send 1080P which requires a handshake. It sounds like you might have to go into the Blu-Ray player and tell it to use 1080i.
If I remember correctly, you hold down either the power or the menu button for 30 seconds... I believe it is the power button, and it will briefly display it on the screen, but this assumes it was reset at the time the lamp was installed. The counter counts up on this model, and the lamp replace light will come on at 3000 hours. I have 2 of these units, and I have gotten at least 5000 hours out of each lamp. Toward the end of the lamp life, it may start getting dim and/or have difficulty starting, but I probably wouldn't replace it until you either notice the dimming or the lamp fails, although I've heard some say they can damage the projector when they fail, I have not had any problems.