Question about Computers & Internet
No worries. To unlock the buttons, let the projector finish warming up, then press and hold the Power button (circle with a line in the middle) for about 3 seconds. The screen should display "Keylock function OFF" and you should be able to use the buttons again.
This info came from the user's manual, online here. (you can right-click->SaveAs that link to save a copy of the PDF on your computer)
The bigger question may be "why is the keylock function coming on in the first place?"
To turn this feature on, you press and hold the power button while the projector is warming up. If you get this every time, it sounds like the power button is getting stuck down. Check for dirt or gunk around that button. If there's not a problem with the plastic around the button, then it's possible that the contact switch on the circuit board is breaking or broken, and that part may need to be replaced.
Posted on Feb 11, 2010
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Posted on Jan 02, 2017
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