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