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 rmly 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 eective operation range? 34
f Are other forms of light, such as uorescent light, aecting 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 o (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 o 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 o 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
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