TROUBLESHOOTING
On-Screen Messages
When the unit's power is ON, messages such as those shown below may be displayed. When any such message is displayed on the screen, please respond as described below.
Message | Contents | |
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CHANGE THE LAMP | The unit does not display a warning message on the screen when | |
AFTER REPLACING LAMP, | the lamp expires or fails. When the lamp does not light, this indicates | |
that the lamp is no longer functional and should be replaced. Replace | ||
RESET THE LAMP TIME. | the lamp and do not forget to reset the timer. | |
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CLEAN THE AIR FILTER | A note of precaution when cleaning the air filter. | |
AFTER CLEANING AIR FILTER, | After cleaning the filter, operate FILTER TIME of the OPTION Menu, | |
RESET THE FILTER TIMER. | then perform reset of the filter timer. | |
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NO INPUT IS DETECTED | There is no input signal. | |
ON *** | Check the signal input connection and the status of the signal | |
| source. | |
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| |
SYNC IS OUT OF RANGE | The horizontal or vertical frequencies of the inputted signal is outside | |
ON *** | of the operating range limits of this unit. Please confirm the specs for | |
this unit or the signal source specs. | ||
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CHECK THE AIR FLOW | The internal temperature is rising. Please turn the power OFF, then | |
| allow the unit to cool down for approximately 20 minutes. After hav- | |
| ing confirmed the following items, then please reset the power to ON. | |
| • Is there blockage of the air filter? | |
| • Is the air filter dirty? | |
| • Does the ambient temperature exceeds 35°C? | |
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ViewSonic PJ751 | 33 |
