Sony VPL-PHZ12 Guide De Référence Rapide page 47

7
Replace the air filter and attach the side cover.
Notes
 Before attaching the air filter to the unit, make sure
that the cushion on the frame of the air filter is
dislocated or loose.
 Be sure to attach the air filter firmly; the power
cannot be turned on if it is not attached securely.
 Be sure to attach the side cover firmly. Incorrect
attachment of the cover may cause a malfunction.
47
GB
Cleaning the Air Filter