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8. Appendix
No image is displayed from your PC or video equipment to the
projector.
Still no image even though you connect the projector to the
PC fi rst, then start the PC.
Enabling your notebook PC’s signal output to the projector.
• A combination of function keys will enable/disable the
external display. Usually, the combination of the “Fn” key
along with one of the 12 function keys turns the external
display on or off.
No image (blue background, logo, no display).
Still no image even though you press the AUTO ADJUST
button.
Still no image even though you carry out [RESET] in the
projector’s menu.
Signal cable’s plug is fully inserted into the input connector
A message appears on the screen.
()
The source connected to the projector is active and available.
Still no image even though you adjust the brightness and/
or the contrast.
Input source’s resolution and frequency are supported by
the projector.
❽
Troubleshooting Check List
Before contacting your dealer or service personnel, check the following list to be sure repairs are needed also by
referring to the “Troubleshooting” section in your user’s manual. This checklist below will help us solve your prob-
lem more ef ciently.
* Print the following pages.
Frequency of occurrence □ always □ sometimes (How often? ) □ other ( )
Power
No power (POWER indicator does not light green) See also
“Status Indicator (STATUS)”.
Power cable’s plug is fully inserted into the wall outlet.
Main power switch is pressed to the ON position.
Lamp cover is installed correctly .
Lamp Hours Used (lamp operation hours) was cleared after
lamp replacement.
No power even though you press and hold the POWER but-
ton for a minimum of 2 seconds.
Shut down during operation.
Power cable’s plug is fully inserted into the wall outlet.
Lamp cover is installed correctly .
[AUTO POWER OFF] is turned off (only models with the
[AUTO POWER OFF] function).
[OFF TIMER] is turned off (only models with the [OFF
TIMER] function ).
[PROGRAM TIMER] is turned off (only models with the
[PROGRAM TIMER] function.)
Video and Audio
Image is too dark.
Remains unchanged even though you adjust the brightness
and/or the contrast.
Image is distorted.
Image appears to be trapezoidal (unchanged even though
you carry out the [KEYSTONE] adjustment).
Parts of the image are lost.
Still unchanged even though you press the AUTO ADJUST
button.
Still unchanged even though you carry out [RESET] in the
projector’s menu.
Image is shifted in the vertical or horizontal direction.
Horizontal and vertical positions are correctly adjusted on
a computer signal.
Input source’s resolution and frequency are supported by
the projector.
Some pixels are lost.
Image is fl ickering.
Still unchanged even though you press the AUTO ADJUST
button.
Still unchanged even though you carry out [RESET] in the
projector’s menu.
Image shows fl ickering or color drift on a computer signal.
Still unchanged even though you change [FAN MODE] from
[HIGH ALTITUDE] to [AUTO].
Image appears blurry or out of focus.
Still unchanged even though you checked the signal’s resolu-
tion on PC and changed it to projector’s native resolution.
Still unchanged even though you adjusted the focus.
No sound.
Audio cable is correctly connected to the audio input of the
projector.
Still unchanged even though you adjusted the volume level.
AUDIO OUT is connected to your audio equipment (only
models with the AUDIO OUT connector).
Other
Remote control does not work.
No obstacles between the sensor of the projector and the
remote control.
Projector is placed near a fl uorescent light that can disturb
the infrared remote controls.
Batteries are new and are not reversed in installation.
If present on the remote control, projector selector switch
is not used.
Buttons on the projector cabinet do not work ( only models
with the
[CONTROL PANEL LOCK]
function).
[CONTROL PANEL LOCK] is not turned on or is disabled in the
menu.
Still unchanged even though you press and hold the EXIT
button for a minimum of 10 seconds.
… 144 …

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