3M MP8747 Operation Guide - Page 28

Section 7: Troubleshooting Messages/Solutions Error Message Displays Cause Solution NO INPUT IS DETECTED The projector is not detecting a signal. ON ** Check cable connections to input device. If input device not connected to this input mode, switch to next mode. SYNC IS OUT OF RANGE The horizontal frequency of input signal ON ** exceeds projector capability. Switch projector to correct resolution. See Appendix. CHANGE THE LAMP. AFTER REPLACING LAMP, RESET THE LAMP TIME. Nearing end of normal lamp operating time. Change the projector lamp and reset the lamp operation hours to zero. The message clears automatically after 3 minutes, and appears each time power is turned on until lamp is changed. CHANGE THE LAMP. AFTER REPLACING LAMP, RESET THE LAMP TIME.THE POWER WILL TURN OFF AFTER ** HR. Remaining lamp operation time = 20 hours or less. *Indicates number of hours until power turns off automatically. Change the projection lamp and reset the lamp operation hours to zero. The message clears automatically after 3 minutes, and appears each time power is turned on until lamp is changed. CHANGE THE LAMP. (blinking) Normal lamp operating time has expired. Safety feature shuts projector down after 10 minutes. Change the projector lamp and reset the lamp operation hours to zero. CHECK THE AIR FLOW. The internal temperature has risen. Switch power OFF and let projector cool for 20 minutes. Check the following and switch ON again. • Are ventilation openings dirty or blocked? • Is air filter dirty or blocked? • Is ambient temperature over 35°C (95°F)? 28 3M™ Personal Projector MP8746/MP8747 © 3M IPC 2000