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3M 9700 Operator’s Guide
9
Troubleshooting
Problem
Probable Causes
Solution
Lamp does not illuminate but fan motor
runs.
c. Control Panel door open
d. Lamp changer dial not engaged
e. Mirror Pan obstructed, not fully
deployed
f. Lamp not seated properly
g. Lamp burned out
a. Close control panel door.
b. Fully rotate lamp changer dial.
c. Remove all obstructions from under
mirror pan.
d. Seat lamp squarely in socket.
e. Replace lamp.
Neither lamp nor fan comes on.
a. Projector not plugged in
b. Stage cover not completely closed
c. No power at wall outlet
a. Plug projector into outlet.
b. Close stage cover to engage safety
interlock.
c. Verify outlet has power.
Fan motor does not run but lamp
illuminates.
a. Fan blade/motor is obstructed
b. Fan motor is burned out
a. Call for service.
b. Call for service.
Lamp and fan both work but utility
outlets do not have power.
a. Outlets overloaded, circuit breaker
tripped
a. Unplug accessories and reset circuit
breaker. Accessories must not
exceed 5 amps total.
After replacing a burned out lamp, the
new lamp fails.
a. Defective lamp was installed
b. Possible electrical problem
a. Replace lamp again.
b. If new lamp fails immediately, you
may have an electrical problem. Call
for service.
Short lamp life: Lamps seem to fail
before expected life span.
a. Defective lamps
b. High line voltage
a. Document actual lamp life, then
contact Lamp Supplier or 3M Service
Information.
Projected image is wider at the top than
bottom (Vertical Keystoning).
a. Screen not aligned at 90
_
angle to
projected light beam
a. Tilt projection screen toward
projector until image width is equal
at top and bottom.
Projected image higher on one side
(Horizontal Keystoning).
a. Projector not aligned at 90
_
angle to
screen
a. Rotate projector until image height is
equal on both sides.
Projected image is dim.
a. Dirty stage glass, lenses, mirrors
b. ENX lamp incorrectly installed in
FXL projector
c. EVD Lamps only: condenser lens
bracket not closed
a. Remove surface dirt.
b. Replace incorrect lamp type with
FXL lamp.
c. Close condenser lens bracket.
Projected image does not have uniform
brightness.
a. Lamp alignment
a. Properly seat lamp in socket and/or
fully rotate lamp changer into
position 1 or 2.
Yellow/orange to brown or blue colours
appear in corners of image.
a. Lamp not at best location for
projector to screen distance
a. Rotate colour tuning dial.
Colour, focus or image problem.
a. Optics out of alignment
a. Call for service.
