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Related messages
When the unit's power is on, messages such as those shown below may be dis-
played. When any such message is displayed on the screen, please follow the
instructions described below. If the same message is displayed after the remedy,
or if a message other than the following appears, please contact your dealer or
service company.
Although these messages will be automatically disappeared around several min-
utes, it will be reappeared every time the power is turned on.
Message Description
NO INPUT IS DETECTED
There is no input signal.
Please confirm the signal input connection, and the status
of the signal source.
SYNC IS OUT OF RANGE
fH kHz fV Hz
The horizontal or vertical frequency of the input signal
is not within the specified range.
Please confirm the specs for your projector or the signal
source specs.
CHECK THE AIR FLOW
The internal temperature is rising.
Please turn the power off, and allow the projector to cool
down at least 20 minutes. After having confirmed the follow
-
ing items, please turn the power ON again.
• Is there blockage of the air passage aperture?
• Is the air filter dirty?
• Does the peripheral temperature exceed 35°C?
If the same indication is displayed after the remedy, please set
FAN SPEED of the SERVICE item in the OPTION menu to HIGH.
REMINDER
*** HRS PASSED AFTER THE
LAST FILTER CHECK.
FILTER MAINTENANCE IS ESSEN-
TIAL
TO REMOVE WARNING MES-
SAGE,
RESET FILTER TIMER.
SEE MANUAL FURTHER INFO.
A note of precaution when cleaning the air filter.
Please immediately turn the power off, and clean or change
the air filter referring to the “Air Filter” section of this manu
-
al. After you have cleaned or changed the air filter, please
be sure to reset the filter timer.
Troubleshooting
55ViewSonic PJ658