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9. Appendix
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problem
moreefciently.
* Printthispageandthenextpageforyourcheck.
Frequency of occurrence always sometimes(Howoften?_____________________) other(__________________)
Power
No power (POWER indicator does not light blue)� See also “Status
Indicator (STATUS)”�
Powercord’splugisfullyinsertedintothewalloutlet.
Main power switch is pressed to the ON position�
No power even though you press and hold the POWER button�
Shut down during operation�
Powercord’splugisfullyinsertedintothewalloutlet.
[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)�
Video and Audio
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
first, then start the PC�
EnablingyournotebookPC’ssignaloutputtotheprojector.
• Acombinationoffunctionkeyswillenable/disabletheexter-
nal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 or black background, 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terminal
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
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 flickering�
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 flickering or color drift on a computer signal�
Still unchanged even though you change [FAN MODE] from
[HIGH] to [AUTO]�
Image appears blurry or out of focus�
Stillunchangedeventhoughyoucheckedthesignal’sresolution
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 terminal)�
Other
Remote control does not work�
No obstacles between the sensor of the projector and the
remote control�
Projector is placed near a fluorescent light that can disturb the
infrared remote controls�
ID for the projector and for the remote are same�
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 SOURCE
button over 10 seconds�
143


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