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55
PJ758/PJ759/PJ760
Troubleshooting
Troubleshooting
If an abnormal operation should occur, stop using the projector immediately.
Troubleshooting
Otherwise if a problem occurs with the projector, the following checks and
measures are recommended before requesting repair.
If this does not resolve the problem, please contact your dealer or service
company. They will tell you what warranty condition is applied.
Related messages
When some message appears, check and cope with it according to the following
table. Although these messages will be automatically disappeared around several
minutes, it will be reappeared every time the power is turned on.
Message Description
NO INPUT IS DETECTED
There is no input signal.
Please confi rm 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 specifi ed range.
Please confi rm 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 confi rmed the
following items, please turn the power ON again.
• Is there blockage of the air passage aperture?
• Is the air fi lter 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 ESSENTIAL
TO REMOVE WARNING MESSAGE,
RESET FILTER TIMER.
SEE MANUAL FURTHER INFO.
A note of precaution when cleaning the air fi lter.
Please immediately turn the power off, and clean or change
the air fi lter referring to the “Air Filter” section of this manual.
After you have cleaned or changed the air fi lter, please be
sure to reset the fi lter timer (
53).
WARNING ►Never use the projector if abnormal operations such as
smoke, strange odor, excessive sound, damaged casing or elements or cables,
penetration of liquids or foreign matter, etc. should occur. In such cases,
immediately disconnect the power plug from the power outlet. After making sure
that the smoke or odor has stopped, contact your dealer or service company.