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I've got a 5 year old SP7200 that's been running great since installation. Recently, a strange imperfection appeared on the display and I need some help with a diagnosis.
The bulb has 2200+ hours on it (yes, I know it's time to replace).
There's nothing on the outer lenses (that I can see).
It's not on the screen, it's in the projected image.
It happens with all sources, even the blue standby display.
Any ideas?

The bulb has 2200+ hours on it (yes, I know it's time to replace).
There's nothing on the outer lenses (that I can see).
It's not on the screen, it's in the projected image.
It happens with all sources, even the blue standby display.
Any ideas?
