Section 7: Troubleshooting
Symptoms/Solutions
Symptom | Cause | Solution |
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Power cannot be | • MAIN POWER switch 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. |
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No picture or 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. |
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Sound is heard without | • RGB/Video/Audio wiring to projector | • Connect the cable to correct input/output source. |
picture. | is not correct. |
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| • The brightness is set fully to dark. | • Press the MENU button and increase BRIGHTNESS. |
| • Lens cap is on. | • Remove lens cap. |
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Picture is displayed | • Audio wiring to projector is not correct. | • Connect the cable to correct input/output source. |
without sound. | • The volume is set to minimum. | • Press the VOL button to increase Volume. |
| • The volume is muted. | • Press the MUTE button. |
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Color is weak and tint is | • The color and tint have been adjusted | • Adjust the color and tint correctly. |
incorrect. | incorrectly. |
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Picture is dark. | • The brightness and contrast has not | • Adjust the brightness and contrast correctly. |
| been adjusted correctly. |
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| • The lamp needs to be replaced. | • Replace the lamp with a new one. |
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Picture is not clear. | • Projector is out of focus. | • Adjust the focus and H. PHASE. |
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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. |
| • Temperature inside projector is too hot. | • Check and clear blocked ventilation holes. |
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| • Check and clean air filter. |
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LAMP indicator blinks | • Lamp access door on bottom of case | • Ensure lamp access door is closed. |
red. | is open. |
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| • The lamp usage has reached | • Replace the lamp. |
| maximun operating hours. |
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TEMP indicator blinks | • Cooling fan not operating. | • Contact your dealer. |
red. |
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© 3M IPC 2000 | 3M™ Personal Projector MP8746/MP8747 | 27 |
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