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54
Troubleshooting
Indicators
Symptom Cause and Remedy
The LAMP/COVER
indicator flashes in orange.
(Repetition rate of 2
flashes)
• The lamp cover is detached.
c Attach the cover securely (see page 49).
The LAMP/COVER
indicator flashes in orange.
(Repetition rate of 3
flashes)
• The interior of the unit reached a high temperature, and the
temperature sensor has been activated.
c Check to see that nothing is blocking the fresh-air inlet and
exhaust outlet.
• The lamp has reached a high temperature.
c Wait for 90 seconds for the lamp to cool then turn on the power
again.
After you have checked the items above, if any of the troubles recur,
the following causes are possible:
• The lamp must be replaced, because it has reached the end of its
service life.
• The interior of the unit reached a high temperature, and the
temperature fuse burned out.
c Consult with qualified Sony personnel.
?/1 key flashes in red.
(Repetition rate of 2
flashes)
• The internal temperature is unusually high.
c Check to see that nothing is blocking the ventilation holes.
• The projector is being used at a high altitude.
c Ensure that “High Altitude Mode” in the Setup menu is set to
“On.” (see page 40)
?/1 key flashes in red.
(Repetition rate of 4
flashes)
The fan is broken.
c Consult with qualified Sony personnel.
?/1 key flashes in red.
(Repetition rate of 6
flashes)
Unplug the AC power cord from the wall outlet after the ?/1 key
goes out, plug the power cord to the wall outlet, and then turn the
projector on again. If the ?/1 key flashes in red and the problem
persists, the electrical system has failed. Or the interior of the unit
reached a high temperature, and the temperature fuse has burned
out.
c Consult with qualified Sony personnel.
?/1 key flashes in red.
(Repetition rate of 8
flashes)
The installation angle is outside the proper range.
c Install it on the floor then turn on the power (see page 12).