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Troubleshooting
Troubleshooting
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 respond as
described below. If the same message is displayed after the treatment, 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
ON ***
There is no input signal.
Please confirm the signal input connection, and the status
of the signal source.
SYNC IS OUT OF RANGE
ON *** 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 portion temperature is rising.
Please turn the power OFF, and allow the unit to cool down
at least 20 minutes. After having confirmed the following
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 treatment,
please set the HIGH at the FAN SPEED of the item SER
-
VICE of the OPTION menu.
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 by referring to the “Air Filter” section
of this manual. After you have cleaned or changed the air
filter, please be sure to reset the filter timer.
47ViewSonic PJ452