3M 9085 Manual del usuario - Página 6
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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 3MtOverhead 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.
Troubleshooting
Problem
Lamp does not come on -- fan runs
New lamp lasts for more than one
minute but less than 2--5 hours
New lamp burns out immediately
after turning on
Fan doesn't run, but lamp is on
Neither lamp nor fan comes on
Projected image is wider at the top
or on one side of the screen
Corners of projected image appear
red or blue or the bottom or sides of
projected image are not in focus
Page 4
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.
Probable Causes
S Lamp is burned out
S Lamp is not seated in the socket
S Lamp changer door is open
S Defective lamp
S Defective lamp
S Electrical problem
S Fan or motor is obstructed
S Not plugged into power source
S No power at the wall outlet
S Top cover not down all the way
S Screen is not perpendicular to
the projected image
S Misaligned optical components
S Lamp not of the proper type
Solution
S Replace or change lamp
S Seat lamp all the way in socket
S Close door
S Replace lamp
S Try one more lamp. If 2nd lamp
blows, have machine checked
S Have machine serviced
S Plug into power source
S Check power supply
S Close top cover all the way
S Reposition the screen surface to
be 90_ to the projected image
S Have optical components
adjusted by qualified technician
S Replace with proper type lamp
3M 9000 Series Operator's Guide