Chapter 6
Maintenance — Troubleshooting
ENGLISH - 263
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>?
76
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?
260
No image appears.
f
Are connections to external devices correctly performed?
56
f
Is the image input selected correctly?
77
f
Is the [BRIGHTNESS] adjustment setting at a minimum?
94
f
Is the external device that is connected to the projector working properly?
―
f
Is the shutter function in use?
84
f
Is the lens cover still attached to the lens?
66
Image is fuzzy.
f
Is the lens focus set correctly?
79
f
Is the projection distance appropriate?
44
f
Is the lens dirty?
30
f
Is the projector installed perpendicular to the screen?
―
Color is pale or grayish.
f
Are [COLOR] and [TINT] adjusted correctly?
95
f
Is the external device connected to the projector adjusted correctly?
―
Remote control does not
respond.
f
Are the batteries depleted?
―
f
Is the polarity of the batteries set correctly?
40
f
Are there any obstructions between the remote control and the remote control
signal receiver of the projector?
34
f
Is the remote control being used beyond its effective operation range?
34
f
Are other forms of light, such as fluorescent light, affecting the projection?
34
f
Is the [REMOTE CONTROL] setting in [CONTROL DEVICE SETUP] set to
[DISABLE]?
193
f
Is the <REMOTE 2 IN> terminal used for contact control?
281
f
Is the ID number setting operation correct?
86
Menu screen does not
appear.
f
Is the on-screen display function turned off (hidden)?
84
Buttons on the control
panel do not operate.
f
Is the [CONTROL PANEL] setting in [CONTROL DEVICE SETUP] set to
[DISABLE]?
193
f
Is the <REMOTE 2 IN> terminal used for contact control?
281
Image does not display
correctly.
f
Is the [SYSTEM SELECTOR] selection set correctly?
102, 131
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?
287
f
Are the settings for [HDMI IN], [DisplayPort IN], and [SLOT IN] made correctly?
―
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” or “Fn” + “F10”
simultaneously. Since the method varies depending on the computer type, refer to
the user manual provided with your computer.)
―
Image from HDMI
compatible device does
not appear or is disrupted.
f
Is the HDMI cable connected securely?
56
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?
287
Image output from
DisplayPort of the
computer does not appear.
f
If connecting the projector to a computer that uses an early-type chipset or graphics
card compatible with DisplayPort, the projector or computer may not be operated
properly.
56
f
The graphics accelerator driver of the computer may need to be updated to the
latest version.
―
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?
287
Lens shift cannot be
adjusted.
f
Perform [LENS CALIBRATION].
150