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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.
Audio is not output.
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.
Video from HDMI compatible
device does not appear or it
appears jumbled.
Audio from HDMI compatible
device does not appear.
Attention
f If problems persist even after checking the preceding points, consult your dealer.
Chapter 6 Maintenance — Troubleshooting
f Is the power plug firmly inserted into the outlet?
f Is the wall outlet supplying electricity?
f Have the circuit breakers tripped?
f Is the lamp indicator <LAMP> or the temperature indicator <TEMP> lit or blinking?
f Is the lamp cover attached securely?
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 Is the external device connected correctly to the audio input terminal?
f Is [MUTE] in [AUDIO SETTING] set to [ON]?
f Is the audio input selection in [AUDIO SETTING] set 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 CONTROLLER] 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 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? (For D-Sub cables, the cable length should be 10 m (32'10")
or shorter.)
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 off and on the power of the projector and the external device.
f Is a signal which is not compatible with the projector being input?
f Set to the linear PCM audio for the connected devices.
Points to be checked
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ENGLISH - 107
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