3M 9000 Series Operator's Manual - Cleaning
Page 4
3M 9000 Series Operator’s Guide
Cleaning
1. The mirror in the open projection head is a
front-surface mirror and must not be wiped clean.
2. Remove any surface dirt with a soft brush to
avoid scratching the mirror.
3. Clean the outside surfaces of the projection
lenses and the stage with 3M
t
Overhead Cleaner
676 (70-0705-6877-2).
Note
Cleaning the underside of the stage glass or
fresnel lens is not recommended. Improper
cleaning or disassembly may damage the
fresnel lens. If cleaning is required, contact
your local 3M Visual Systems dealer for
assistance.
Color Tuning
1. To eliminate red or blue corners on the screen,
rotate the Color Tuning Dial.
a. Blue corners -- Rotate the dial to the left.
b. Red corners -- Rotate the dial to the right.
Troubleshooting
Problem
Probable Causes
Solution
Lamp does not come on -- fan runs
S
Lamp is burned out
S
Lamp is not seated in the socket
S
Lamp changer door is open
S
Replace or change lamp
S
Seat lamp all the way in socket
S
Close door
New lamp lasts for more than one
minute but less than 2--5 hours
S
Defective lamp
S
Replace lamp
New lamp burns out immediately
after turning on
S
Defective lamp
S
Electrical problem
S
Try one more lamp. If 2nd lamp
blows, have machine checked
Fan doesn’t run, but lamp is on
S
Fan or motor is obstructed
S
Have machine serviced
Neither lamp nor fan comes on
S
Not plugged into power source
S
No power at the wall outlet
S
Top cover not down all the way
S
Plug into power source
S
Check power supply
S
Close top cover all the way
Projected image is wider at the top
or on one side of the screen
S
Screen is not perpendicular to
the projected image
S
Reposition the screen surface to
be 90
_
to the projected image
Corners of projected image appear
red or blue or the bottom or sides of
projected image are not in focus
S
Misaligned optical components
S
Lamp not of the proper type
S
Have optical components
adjusted by qualified technician
S
Replace with proper type lamp