Chapter 6
Maintenance — Troubleshooting
ENGLISH - 221
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>?
69
f
Is the wall outlet supplying electricity?
―
f
Have the circuit breakers tripped?
―
f
Are the light source indicators <LIGHT1>/<LIGHT2> or the temperature indicator
<TEMP> lighting or blinking?
218
No image appears.
f
Are connections to external devices correctly performed?
52
f
Is the image input selected correctly?
70
f
Is the [BRIGHTNESS] adjustment setting at a minimum?
92
f
Is the external device that is connected to the projector working properly?
―
f
Is the shutter function in use?
80
f
Is the projection lens attached correctly?
49
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?
61
Image is fuzzy.
f
Is the lens focus set correctly?
71
f
Is the projection distance appropriate?
38
f
Is the lens dirty?
24
f
Is the projector installed perpendicular to the screen?
―
Color is pale or grayish.
f
Are [COLOR] and [TINT] adjusted correctly?
92
f
Is the external device connected to the projector adjusted correctly?
―
f
Is the RGB cable damaged?
―
Remote control does not
respond.
f
Are the batteries depleted?
―
f
Is the polarity of the batteries set correctly?
33
f
Is the button operation disabled by sliding the <LOCK> button on the remote
control?
28
f
Are there any obstructions between the remote control and the remote control
signal receiver of the projector?
29
f
Is the remote control being used beyond its effective operation range?
29
f
Are other forms of light, such as fluorescent light, affecting the projection?
29
f
Is the [REMOTE CONTROL] setting in [CONTROL DEVICE SETUP] set to
[DISABLE]?
185
f
Is the <REMOTE 2 IN> terminal used for contact control?
241
f
Is the ID number setting operation correct?
83
Menu screen does not
appear.
f
Is the on-screen display function turned off (hidden)?
135
Buttons on the control
panel do not operate.
f
Is the [CONTROL PANEL] setting in [CONTROL DEVICE SETUP] set to
[DISABLE]?
185
f
Is the <REMOTE 2 IN> terminal used for contact control?
241
Image does not display
correctly.
f
Is the [SYSTEM SELECTOR] selection set correctly?
98, 134
f
Is the [RGB1 INPUT SETTING] setting made correctly?
128
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?
246
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” or “Fn” + “F10”
simultaneously. Since the method varies depending on the computer type, 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]?
129
f
The graphics accelerator driver of the computer may need to be updated to the
latest version.
―
f
The condition may be improved by making the [EDID SELECT] setting in [DVI-D IN]
and then restarting the computer.
129
Image from HDMI
compatible device does
not appear or is disrupted.
f
Is the HDMI cable connected securely?
52
f
Turn the power of the projector and the external device off and on.
―
f
Is a signal which is not compatible with the projector being input?
246
