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8
3M 9800 Operator’s Guide
Lamp Replacement
EVD 400W 36V
1. Push power switch to “Off” and unplug projector.
2. Release cover latch and lift up top cover.
!
Lamp and adjacent metal parts are hot. Allow lamp
to cool before replacing.
3. After lamp has cooled, release spring clip (1) and
raise condenser lens frame to access lamp.
4. Pull lamp out (2) and discard.
5. Push new lamp (3) fully and squarely into socket.
Do not touch bulb glass with fingers.
6. Close condenser lens frame and secure with spring
clip.
7. Look through condenser lens and check lamp
filament for correct alignment. If filament and its
reflection are not aligned, repeat steps 3, 5 and 6.
NOT
ALIGNED ALIGNED
8. Close top cover and plug in power cord.
Cleaning
For best performance, keep your projector free of
excess dust and surface dirt.
Daily Cleaning: Use a soft cloth to remove dust from
the stage and projector base areas.
Stage Glass and Lenses: Use 3M lens cleaner and a
soft, lint-free cloth to remove surface dirt from the stage
glass, projector lens, 1.3X magnifier lens and bottom of
Fresnel Lens.
Caution
!
Cleaning the underside of the stage glass or Fresnel
lens is not recommended. Improper cleaning or
disassembly may damage the optics. Contact your
3M Dealer or Service Center for assistance.
Projection Mirror: Use a soft brush to remove surface
dirt from the projection mirror.
Caution
!
The projection mirror is a front-surface mirror and
must not be wiped clean.