Chapter 6 Maintenance — Troubleshooting
194 - ENGLISH
Troubleshooting
Review the following points. For details, see the corresponding pages.
Problems Points to be checked Page
Power does not turn on.
f
Is the power plug rmly inserted into the outlet? ―
f
Is the <MAIN POWER> switch set to <OFF>? 49
f
Is the wall outlet supplying electricity? ―
f
Have the circuit breakers tripped? ―
f
Is the light source indicator <LIGHT> blinking? 192
f
Is the temperature indicator <TEMP> lit or blinking? 192
No image appears.
f
Are connections to external devices correctly performed? 35
f
Is the input selection setting correct? 50
f
Is the [BRIGHTNESS] adjustment setting at a minimum? 66
f
Is the external device that is connected to the projector working properly? ―
f
Is the shutter function in use? 54, 99
f
If the power indicator <ON (G)/STANDBY (R)> is blinking red, consult your dealer. ―
Image is fuzzy.
f
Is the lens focus set correctly? 51
f
Is the projection distance appropriate? 32
f
Is the lens dirty? 22
f
Is the projector installed perpendicular to the screen? ―
Color is pale or grayish.
f
Are [COLOR] and [TINT] adjusted correctly? 67
f
Is the external device connected to the projector adjusted correctly? 35
f
Is the computer cable damaged? ―
No audio.
f
Is the external device connected correctly to the audio input terminal? 28
f
Is the mute function used? 54, 120
f
Is [AUDIO IN SELECT] in [AUDIO SETTING] correctly set? 120
Remote control does not
respond.
f
Are the batteries depleted? ―
f
Is the polarity of the batteries set correctly? 29
f
Are there any obstructions between the remote control and the remote control signal
receiver of the projector?
25
f
Is the remote control being used beyond its eective operation range? 25
f
Are other forms of light, such as uorescent light, aecting the projection? 25
f
Is the [REMOTE CONTROL] setting in [CONTROL DEVICE SETUP] set to
[DISABLE]?
133
f
Is the ID number setting operation correct? 58
Menu screen does not
appear.
f
Is the on-screen display function turned o (hidden)? 55
Buttons on the control
panel do not operate.
f
Is the [CONTROL PANEL] setting in [CONTROL DEVICE SETUP] set to [DISABLE]? 133
Image does not display
correctly.
f
Is [SYSTEM SELECTOR] set properly? 72
f
Are the settings for [COMPUTER IN], [HDMI1 IN], [HDMI2 IN], and [DIGITAL LINK
IN] made correctly?
91
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? 213
Image from a computer
does not appear.
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” keys or the “Fn” + “F10”
keys simultaneously. This will dier depending on the model of the computer. Refer
to the user manual provided with your computer.)
―
Image output from DVI-D
of the computer does not
appear.
f
It may get improved by replacing the HDMI/DVI-D conversion cable. ―
f
It may get improved by updating the graphic accelerator driver of the computer to
the latest version.
―
f
It may get improved by rebooting the computer after setting the [DISPLAY OPTION]
menu → [HDMI1 IN] / [HDMI2 IN] → [EDID SELECT] to [2K].
93
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