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Section 7: Troubleshooting
7-1. Troubleshooting Problems and Solutions
Problem
Projector will not turn
on.
Image is disturbed or
unstable.
No computer image
projected. Message
"Looking for signal
..." displays.
No video image
projected.
No video images are
projected or the
video image ?does
something? and
turns off.
Mouse does not
work.
The lamp turns off,
the Standby button
and LED lights up
and stays green as
the fan cools the
unit, and the unit
goes into Standby
Mode.
The lamp turns off,
the unit goes into
Standby Mode, and
the fan ????s more
rapidly.
Note: It is necessary to turn the projector off and on with the main power switch before restarting the projector.
The lamp turns off,
the Standby button
blinks red for a few
seconds, and the
unit goes into
Standby Mode.
20
T H E T R U S T E D S O U R C E F O R P R O J E C T O R L A M P S A N D A C C E S S O R I E S
Probable Cause
•
•
Power cable is
Plug the power cable into an AC outlet.
•
disconnected or not
Turn the main power switch to the ON postion.
•
plugged in.
Send the unit to be repaired.
•
Main power switch is
not on.
•
The ?inner fuses? are
open?
•
•
Wrong Sync setting.
Set to factory default setting. (See below!)
•
Change Sync setting in the Picture menu for optimum
•
Wrong Tracking
performance
•
value.
For vertical interference stripes, change the Tracking in the
Picture menu for optimum performance.
•
•
Loose cable.
Check and secure cable connections.
•
•
No power to
Turn on computer.
computer.
•
•
Wrong synchro-
Adjust synchronization mode of the projector to the synchro-
nization mode.
nization mode of the computer via Advanced Setup menu.
•
•
Loose cable.
Check and secure cable connections.
•
•
No signal from video
Check video picture on TV.
source.
•
•
The video source is
In the submenu Video Standard? in the Advanced Setup
sending a video
menu, manually change the video standard from Automatic to
signal and the
the type of standard in use.
projector cannot
automatically select
the video standard in
use.
•
•
Loose cable.
Check and secure cable connections.
•
•
Wrong connection.
For PS/2 and ADB (Apple) mouse a special adapter is
•
Wrong power up
necessary. Only use adapters from the original manufacturer
sequence.
(Section 8-2).
•
The mouse emulation operates correctly only if the correct
power up sequence has been used (refer to section 3-5.) To
verify that the projector is programmed for the desired mouse
emulation mode, go to the Screen Parameters? In the
Advanced Setup/Test submenu. Check that the parameter
MTPE presents the desired mouse mode. This is not a
selection, but a ???? that shows the type of mouse emulation
with which the projector is programmed to communicate.
•
•
The air intake or
Clear all obstructions from the air intake and exhaust vents.
•
exhaust vents are
Clean or replace the filter.
blocked.
•
The air filter is dirty.
•
•
The air intake or
Clear all obstructions from the air intake and exhaust vents.
•
exhaust vents are
Clean or replace the filter.
blocked.
•
The air filter is dirty.
•
•
The air intake or
Clear all obstructions from the air intake and exhaust vents.
•
exhaust vents are
Clean or replace the filter.
blocked.
•
The air filter is dirty.
3M
Multimedia Projector MP8760
Possible Solution
3M IPC 2000
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