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CMS-XML How to Adjust the LV-X4 / LV-7230 Projector Lens for Zoom, Focus and Keystone
2 Correct keystone distortion by pressing the Point
CMS-XML How do I Clean and Replace the Air Filter on the LV-X4 / LV-7230
1 Turn off the projector, and disconnect the AC power cord from the AC outlet. 2 Turn the projector upside down and remove the air filters by pulling the latches upward.