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Troubleshooting
Review the following points. For details, see the corresponding pages.
Problems
Power does not turn on.
No image appears.
Image is fuzzy.
Color is pale or grayish.
Remote control does not
respond.
Menu screen does not
appear.
Buttons on the control
panel do not operate.
Image does not display
correctly.
Image from a computer
does not appear.
Image from HDMI
compatible device does
not appear or is disrupted.
Image output from
DisplayPort of the
computer does not appear.
Lens shift cannot be
adjusted.
270 - ENGLISH
Chapter 6 Maintenance — Troubleshooting
f Is the power plug firmly inserted into the outlet?
f Is the <MAIN POWER> switch set to <OFF>?
f Is the wall outlet supplying electricity?
f Have the circuit breakers tripped?
f Are the light source indicators <LIGHT1> / <LIGHT2> or the temperature indicator
<TEMP> lighting or blinking?
f Are connections to external devices correctly performed?
f Is the image input selected correctly?
f Is the [BRIGHTNESS] adjustment setting at a minimum?
f Is the external device that is connected to the projector working properly?
f Is the shutter function in use?
f Is the lens cover still attached to the lens?
f Is the lens focus set correctly?
f Is the projection distance appropriate?
f Is the lens dirty?
f Is the projector installed perpendicular to the screen?
f Are [COLOR] and [TINT] adjusted correctly?
f Is the external device connected to the projector adjusted correctly?
f Are the batteries depleted?
f Is the polarity of the batteries set correctly?
f Are there any obstructions between the remote control and the remote control
signal receiver of the projector?
f Is the remote control being used beyond its effective operation range?
f Are other forms of light, such as fluorescent light, affecting the projection?
f Is the [REMOTE CONTROL] setting in [CONTROL DEVICE SETUP] set to
[DISABLE]?
f Is the <REMOTE 2 IN> terminal used for contact control?
f Is the ID number setting operation correct?
f Is the on-screen display function turned off (hidden)?
f Is the [CONTROL PANEL] setting in [CONTROL DEVICE SETUP] set to
[DISABLE]?
f Is the <REMOTE 2 IN> terminal used for contact control?
f Is the [SYSTEM SELECTOR] selection set correctly?
f Is there a problem with the external device to output images?
f Is a signal which is not compatible with the projector being input?
f Are the settings for [HDMI IN], [DisplayPort IN], and [SLOT IN] made correctly?
f Is the cable too long?
f Is the external video output on the laptop computer set correctly? (Ex.: The external
output settings may be switched by pressing the "Fn" + "F3" or "Fn" + "F10"
simultaneously. Since the method varies depending on the computer type, refer to
the user manual provided with your computer.)
f Is the HDMI cable connected securely?
f Turn the power of the projector and the external device off and on.
f Is a signal which is not compatible with the projector being input?
f If connecting the projector to a computer that uses an early-type chipset or graphics
card compatible with DisplayPort, the projector or computer may not be operated
properly.
f The graphics accelerator driver of the computer may need to be updated to the
latest version.
f Turn the power of the projector and the external device off and on.
f Is a signal which is not compatible with the projector being input?
f Perform [LENS CALIBRATION].
Points to be checked
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