3M MP8747 Operation Guide - Page 27

Section 7: Troubleshooting Symptoms/Solutions Symptom Power cannot be turned on. No picture or sound. Sound is heard without picture. Picture is displayed without sound. Color is weak and tint is incorrect. Picture is dark. Picture is not clear. LAMP indicator lights red. LAMP indicator blinks red. TEMP indicator blinks red. Cause Solution • MAIN POWER switch is not turned on. • The power cord is disconnected. • 60 seconds have not elapsed since the power was turned off. • Turn the MAIN POWER switch on. • Insert the power cord into an AC socket. • Wait 60 seconds before turning on power. • The setting of the input source is not correct. • RGB/Video/Audio wiring to projector is not correct. • Set the correct input using the input select button of the projector or the remote control. • Connect the cable to correct input/output source. • RGB/Video/Audio wiring to projector is not correct. • The brightness is set fully to dark. • Lens cap is on. • Connect the cable to correct input/output source. • Press the MENU button and increase BRIGHTNESS. • Remove lens cap. • Audio wiring to projector is not correct. • Connect the cable to correct input/output source. • The volume is set to minimum. • Press the VOL button to increase Volume. • The volume is muted. • Press the MUTE button. • The color and tint have been adjusted • Adjust the color and tint correctly. incorrectly. • The brightness and contrast has not been adjusted correctly. • The lamp needs to be replaced. • Adjust the brightness and contrast correctly. • Replace the lamp with a new one. • Projector is out of focus. • Adjust the focus and H. PHASE. • Lamp will not ignite. • Turn off power and let cool for 20 minutes, then restart. • If problem persists call your dealer. • Temperature inside projector is too hot. • Check and clear blocked ventilation holes. • Check and clean air filter. • Lamp access door on bottom of case is open. • The lamp usage has reached maximun operating hours. • Ensure lamp access door is closed. • Replace the lamp. • Cooling fan not operating. • Contact your dealer. © 3M IPC 2000 3M™ Personal Projector MP8746/MP8747 27