© 3M 1999 3M
™
Multimedia Projector MP8745
ENGLISH
23
Section 7: Troubleshooting
Symptom Cause Solution
Power cannot be • The Main power is not turned on. • Turn the MAIN POWER switch on.
turned on. • The power cord is disconnected. • Insert the power cord into an AC socket.
• 60 seconds have not elapsed since • Wait 60 seconds before turning on power.
the power was turned off.
No picture and sound. • The setting of the input source is not • Set the correct input using the input select button of
correct. the projector or the remote control.
• RGB/Video/Audio wiring to projector is • Connect the cable to correct input/output source.
not correct.
Sound is heard with no • RGB/Video/Audio wiring to projector • Connect the cable to correct input/output source.
picture. is not correct.
• The brightness is set fully to dark. • Press the MENU button and increase BRIGHTNESS.
• Lens cap is on. • Remove lens cap.
Picture is displayed with • Audio wiring to projector is not correct. • Connect the cable to correct input/output source.
no sound. • The volume is set to minimum. • Press the VOL button to increase Volume.
• The unit is muted. • Press the MUTE button.
• PinP is on and audio is switched • Press VOLUME and move DISC PAD to switch to
to VIDEO mode. audio input.
Color is weak and tint is • The color and tint have been adjusted • Adjust the color and tint correctly.
incorrect. incorrectly.
Picture is dark. • The brightness and contrast has not • Adjust the brightness and contrast correctly.
been adjusted correctly.
• The lamp needs to be replaced. • Replace the lamp with a new one.
Picture is not clear • Projector is out of focus. • Adjust the focus and H PHASE.
LAMP indicator lights • Lamp will not ignite.
• Turn off power and let cool for 20 minutes, then restart.
red.
• If problem persists call your dealer.
LAMP indicator blinks • Air filter door on bottom of case
• Ensure air filter door is closed.
red. is open.
TEMP indicator lights • Temperature inside projector • Clear blocked ventilation holes.
red. is too hot. • Clean air filter.
7.1 Symptom/Solution Table
