Chapter 6
Maintenance — Troubleshooting
ENGLISH - 213
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
Is the light source indicator <LIGHT> blinking?
207
f
Is the temperature indicator <TEMP> lit or blinking?
208
No image appears.
f
Are connections to external devices correctly performed?
46
f
Is the input selection setting correct?
66
f
Is the [BRIGHTNESS] adjustment setting at a minimum?
81
f
Is the external device that is connected to the projector working properly?
―
f
Is the shutter function in use?
72, 118
f
Is the projection lens attached correctly?
43
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?
36
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?
82
f
Is the external device connected to the projector adjusted correctly?
―
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?
32
f
Are there any obstructions between the remote control and the remote control
signal receiver of the projector?
28
f
Is the remote control being used beyond its effective operation range?
28
f
Are other forms of light, such as fluorescent light, affecting the projection?
28
f
Is the [REMOTE CONTROL] setting in [CONTROL DEVICE SETUP] set to
[DISABLE]?
155
f
Is the <REMOTE 1 IN> terminal used for contact control?
231
f
Is the ID number setting operation correct?
74
Menu screen does not
appear.
f
Is the on-screen display function turned off (hidden)?
72
Buttons on the control
panel do not operate.
f
Is the [CONTROL PANEL] setting in [CONTROL DEVICE SETUP] set to
[DISABLE]?
155
f
Is the <REMOTE 1 IN> terminal used for contact control?
231
Image does not display
correctly.
f
Is [SYSTEM SELECTOR] set properly?
86
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?
233
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]?
108
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.
108
Video from HDMI
compatible device does
not appear or it appears
jumbled.
f
Is the HDMI cable connected securely?
46
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?
233
Lens shift cannot be
adjusted.
f
Perform [LENS CALIBRATION].
127