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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.
Buttons on the control
panel do not operate.
Image does not display
correctly.
Image from a computer
does not appear.
Image output from DVI-I
of the computer does not
appear.
Video from HDMI
compatible device does
not appear or it appears
jumbled.
No audio is coming from
the HDMI compatible
device.
There is no DIGITAL LINK
input audio or video.
3D function is not working.
Chapter 5 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 Is the temperature indicator <TEMP> or the light source indicator <LIGHT> lit or
flashing?
f Are connections to external devices correctly performed?
f Is the input selection setting correct?
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 AV mute function in use?
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 Is [COLOR] or [TINT] adjusted correctly?
f Is the external device connected to the projector adjusted correctly?
f Is the RGB cable damaged?
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 ID number setting operation correct?
f Is the [CONTROL PANEL] setting in [CONTROL DEVICE SETUP] set to
[DISABLE]?
f Is the [SYSTEM SELECTOR] selection set correctly?
f Is there a problem with the video tape or other image sources?
f Is a signal which is not compatible with the projector being input?
f Is the cable too long? (Use D-Sub cables that are 10 m (32'10") or shorter.)
f Is the external video output of 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 [DVI-I IN] setting set to [EDID3]/[EDID2]?
f The graphics accelerator driver of the computer may need to be updated to the
latest version.
f The computer may need to be restarted after performing [DVI-I IN] settings.
f Is the [DIGITAL/ANALOG] setting in [DVI-I IN] correct?
f Is the HDMI cable connected securely?
f Turn the power of the projector and the external device on and off.
f Is a signal which is not compatible with the projector being input?
f Set audio of the external device to linear PCM.
f Check [AUDIO IN SELECT] of [AUDIO SETTING].
f If there is no audio through the HDMI cable connection, use the <AUDIO IN>
terminal.
f Are the connections between the twisted-pair-cable transmitter and the projector or
an external device correctly done?
f Is [DIGITAL LINK MODE] set to [AUTO] or [DIGITAL LINK]? Is it set to
[ETHERNET]?
f Is the [3D INPUT FORMAT] or [3D MODE] setting of [3D SETTINGS] correct?
f Check the 3D eyewear settings.
f Is a signal which is supported by the projector being input?
Points to be checked
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ENGLISH - 121
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