Chapter 6
Maintenance — Troubleshooting
178 - 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 firmly inserted into the outlet?
―
f
Is the <MAIN POWER> switch set to <OFF>?
65
f
Is the wall outlet supplying electricity?
―
f
Have the circuit breakers tripped?
―
f
Are the light source indicators <LIGHT1>/<LIGHT2> blinking?
175
f
Is the temperature indicator <TEMP> lit or blinking?
176
No image appears.
f
Are connections to external devices correctly performed?
48
f
Is the input selection setting correct?
66
f
Is the [BRIGHTNESS] adjustment setting at a minimum?
79
f
Is the external device that is connected to the projector working properly?
―
f
Is the shutter function in use?
70, 113
f
If the power indicator <ON (G)/STANDBY (R)> is blinking in red, consult your dealer.
―
f
Is the lens cover still attached to the lens?
56
Image is fuzzy.
f
Is the lens focus set correctly?
67
f
Is the projection distance appropriate?
33
f
Is the lens dirty?
21
f
Is the projector installed perpendicular to the screen?
―
Image is dark
f
Is the [CONTRAST] adjustment setting at a minimum?
79
f
Is the setting value of [LIGHT OUTPUT] set small?
122
f
Are the light source indicators <LIGHT1>/<LIGHT2> blinking?
It may improve by reattaching the projection lens.
175
Color is pale or grayish.
f
Are [COLOR] and [TINT] adjusted correctly?
80
f
Is the external device connected to the projector adjusted correctly?
48
f
Is the computer cable damaged?
―
Remote control does not
respond.
f
Are the batteries depleted?
―
f
Is the polarity of the batteries set correctly?
30
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 effective operation range?
25
f
Are other forms of light, such as fluorescent light, affecting the projection?
25
f
Is the [REMOTE CONTROL] setting in [CONTROL DEVICE SETUP] set to
[DISABLE]?
146
f
Is the <REMOTE 2 IN> terminal used for contact control?
195
f
Is the ID number setting operation correct?
72
Menu screen does not
appear.
f
Is the on-screen display function turned off (hidden)?
70
Buttons on the control
panel do not operate.
f
Is the [CONTROL PANEL] setting in [CONTROL DEVICE SETUP] set to
[DISABLE]?
146
f
Is the <REMOTE 2 IN> terminal used for contact control?
195
Image does not display
correctly.
f
Is [SYSTEM SELECTOR] set properly?
85
f
Is [RGB1 INPUT SETTING] set correctly?
102
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?
198
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]?
104
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.
104
