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