ViewSonic PJ520 User Manual - Page 38

Troubleshooting

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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 Description TO MAXIMIZE PERFORMANCE, The unit does not display a warning message on the screen when LAMP REPLACEMENT IS RECOM- the lamp expires or fails. When the lamp does not light, this indi- MENDED. cates that the lamp is no longer functional and should be replaced. Replace the lamp and do not forget to reset the timer. CLEAN THE AIR FILTER AFTER CLEANING AIR FILTER, RESET THE FILTER TIMER. A note of precaution when cleaning the air filter. After cleaning the filter, operate FILTER TIME of the OPTION Menu, then perform reset of the filter timer. NO INPUT IS DETECTED ON *** There is no input signal. Check the signal input connection and the status of the signal source. SYNC IS OUT OF RANGE ON *** The horizontal or vertical frequencies of the inputted signal is outside of the operating range limits of this unit. Please confirm the specs for this unit or the signal source specs. 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 having 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? ViewSonic PJ650/PJ520 35

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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
Description
TO MAXIMIZE PERFORMANCE,
LAMP REPLACEMENT IS RECOM-
MENDED.
The unit does not display a warning message on the screen when
the lamp expires or fails. When the lamp does not light, this indi-
cates that the lamp is no longer functional and should be replaced.
Replace the lamp and do not forget to reset the timer.
CLEAN THE AIR FILTER
AFTER CLEANING AIR FILTER,
RESET THE FILTER TIMER.
A note of precaution when cleaning the air filter.
After cleaning the filter, operate FILTER TIME of the OPTION Menu,
then perform reset of the filter timer.
NO INPUT IS DETECTED
ON
***
There is no input signal.
Check the signal input connection and the status of the signal
source.
SYNC IS OUT OF RANGE
ON
***
The horizontal or vertical frequencies of the inputted signal is out-
side of the operating range limits of this unit. Please confirm the
specs for this unit or the signal source specs.
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?
ViewSonic
PJ650/PJ520
35