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44 Troubleshooting
Troubleshooting
If the projector appears to be operating erratically, try to diagnose and correct the problem
using the following instructions. If the problem persists, consult with qualified Sony personnel.
Power
Picture
Symptom Cause and Remedy
The power is not turned on. • The power has been turned off and on with the I / 1 key at a short
interval.
c Wait for about 90 seconds before turning on the power
(see page 29).
• The lamp cover is detached.
c Close the lamp cover securely (see page 41).
• The air filter cover is detached.
c Close the air filter cover securely (see page 42).
Both the LAMP/COVER
and TEMP/FAN indicators
light up.
• The electrical system breaks down.
c Consult with qualified Sony personnel.
The powered tilt adjuster
and the lens protector do
not close.
• The AC power cord is unplugged with the power of the projector
turned on.
c Connect the power cord plug to the AC outlet again, then turn
off the power of the projector.
The powered tilt adjuster
and the lens protector do
not work at all.
• The electrical system breaks down.
c Consult with qualified Sony personnel. If it is necessary to use
the projector in case of emergency, use it in the emergency mode
(see page 48).
Symptom Cause and Remedy
No picture. • Cable is disconnected or the connections are wrong.
c Check that the proper connections have been made
(see page 18).
• Input selection is incorrect.
c Select the input source correctly using the INPUT key
(see page 25).
• The picture is muted.
c Press the PIC MUTING key to release the picture muting (see
page 26).
• The computer signal is not set to output to an external monitor or
set to output both to an external monitor and a LCD monitor of a
computer.
c Set the computer signal to output only to an external monitor
(see page 18).
The picture is noisy. • Noise may appear on the background depending on the
combination of the numbers of dot input from the connector and
numbers of pixel on the LCD panel.
c Change the desktop pattern on the connected computer.