Chapter 6 Maintenance — Troubleshooting
ENGLISH - 159
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? 157
f Is the temperature indicator <TEMP> lit or blinking? 157
No image appears.
f Are connections to external devices correctly performed? 34
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, 97
f If the power indicator <ON (G)/STANDBY (R)> is blinking in red, consult your dealer. ―
Image is fuzzy.
f Is the lens focus set correctly? 51
f Is the projection distance appropriate? 31
f Is the lens dirty? 20
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? 34
f Is the computer cable damaged? ―
Audio is not output.
f Is the external device connected correctly to the audio input terminal? 27
f Is the mute function used? 54, 116
f Is [AUDIO IN SELECT] in [AUDIO SETTING] correctly set? 117
Remote control does not
respond.
f Are the batteries depleted? ―
f Is the polarity of the batteries set correctly? 28
f Are there any obstructions between the remote control and the remote control
signal receiver of the projector?
24
f Is the remote control being used beyond its effective operation range? 24
f Are other forms of light, such as uorescent light, affecting the projection? 24
f Is the [REMOTE CONTROL] setting in [CONTROL DEVICE SETUP] set to
[DISABLE]?
128
f Is the ID number setting operation correct? 58
Menu screen does not
appear.
f Is the on-screen display function turned off (hidden)? 55
Buttons on the control
panel do not operate.
f Is the [CONTROL PANEL] setting in [CONTROL DEVICE SETUP] set to
[DISABLE]?
128
Image does not display
correctly.
f Is [SYSTEM SELECTOR] set properly? 70
f Is [COMPUTER IN/OUT] set correctly? 87
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? 175
Part of image is missing.
f Is the lens position within the adjustment range? 53
f Is [SHIFT] adjusted correctly? 72
f Is [ASPECT] set properly? 72
f Is [BLANKING] adjusted correctly? 77
Image from a computer
does not appear.
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” keys or the “Fn” + “F10”
keys simultaneously. This will differ 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 Is [EDID SELECT] in [DVI-D IN] set to [EDID3] or [EDID2:PC]? 89
f It may improve by updating the graphic accelerator driver of the computer to the
latest version.
―
f It may improve by performing the [EDID SELECT] setting in [DVI-D IN], and then
rebooting the computer.
89
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