(c) Slide the glass cover out of the housing.
(d) Remove the Fresnel condenser lens
it out from
the grooves in which it rests. This lens is a valuable and
fragile part of the projector and must be handled with care.
To replace the plate-glass cover and the Fresnel condenser
lens, reverse the disassembly instructions ( (a ) through (d)
above). Be sure to replace the Fresnel condenser lens so
that the convex side faces the projection lens.
Figure 27. Projector PH-637A/PFP, cover raised.