
Troubleshooting
Phenomena that may be easy to be mistaken for machine defects (continued)
| Phenomenon | Cases not involving a machine defect | Reference | |
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 | The signal cables are not correctly connected. | 13, 14 | |
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 | Correctly connect the audio cables. | ||
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 | The MUTE function is working. | 20 | |
| 
 | Restore the sound pressing the MUTE or VOLUME button | ||
| Sound does not | on the remote control. | 
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| come out. | The volume is adjusted to an extremely low level. | 20 | |
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 | Adjust the volume to a higher level using the menu function | ||
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 | or the remote control. | 
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 | The AUDIO setting is not correct. | 38 | |
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 | Correctly set the AUDIO item in the SETUP menu. | ||
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 | The lens cap is attached. | 19 | |
| 
 | Remove the lens cover. | ||
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 | The signal cables are not correctly connected. | 13, 14 | |
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 | Correctly connect the connection cables. | ||
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 | The brightness is adjusted to an extremely low level. | 27 | |
| No pictures are | Adjust BRIGHTNESS to a higher level using the menu | ||
| function or the remote control. | 
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| displayed. | 
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| The computer cannot detect the projector as a plug | 
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 | and play monitor. | 12 | |
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 | Make sure that the computer can detect a plug and play | ||
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 | monitor using another plug and play monitor. | 
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 | The BLANK screen is displayed. | 24 | |
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 | Press the BLANK button on the remote control. | ||
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| Video screen | The FREEZE function is working. | 24 | |
| display freezes. | Press the FREEZE button to restore the screen to normal. | ||
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 | Color settings are not correctly adjusted. | 28, 30, | |
| Colors have a | Perform picture adjustments by changing the COLOR | ||
| faded- out | TEMP, COLOR, TINT and/or COLOR SPACE settings, | 34 | |
| appearance, or | using the menu functions. | 
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| Color tone is | COLOR SPACE setting is not suitable. | 
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| poor. | Change the COLOR SPACE setting to AUTO, RGB, | 34 | |
| 
 | SMPTE240, REC709 or REC601. | 
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