Chapter 6 Maintenance — Troubleshooting
286 - 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 rmly inserted into the outlet? ―
f Is the <MAIN POWER> switch set to <OFF>? 78
f Is the wall outlet supplying electricity? ―
f Have the circuit breakers tripped? ―
f Is the light source indicator <LIGHT> or the temperature indicator <TEMP> lighting
or blinking?
283
No image appears.
f Are connections to external devices correctly performed? 59
f Is the image input selected correctly? 79
f Is the [BRIGHTNESS] adjustment setting at a minimum? 105
f Is the external device that is connected to the projector working properly? ―
f Is the shutter function in use? 93
f Is the projection lens attached correctly? 56
f Is the lens cover still attached to the lens? 70
Image is fuzzy.
f Is the lens focus set correctly? 81
f Is the projection distance appropriate? 41
f Is the lens dirty? 27
f Is the projector installed perpendicular to the screen? ―
Color is pale or grayish.
f Are [COLOR] and [TINT] adjusted correctly? 105
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? 37
f Is the button operation disabled by sliding the <LOCK> button on the remote
control?
30
f Are there any obstructions between the remote control and the remote control
signal receiver of the projector?
31
f Is the remote control being used beyond its effective operation range? 31
f Are other forms of light, such as uorescent light, affecting the projection? 31
f Is the [REMOTE CONTROL] setting in [CONTROL DEVICE SETUP] set to
[DISABLE]?
210
f Is the <REMOTE 2 IN> terminal used for contact control? 304
f Is the ID number setting operation correct? 95
Menu screen does not
appear.
f Is the on-screen display function turned off (hidden)? 93
Buttons on the control
panel do not operate.
f Is the [CONTROL PANEL] setting in [CONTROL DEVICE SETUP] set to
[DISABLE]?
210
f Is the <REMOTE 2 IN> terminal used for contact control? 304
Image does not display
correctly.
f Is the [SYSTEM SELECTOR] selection set correctly? 111, 155
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? 309
f Are the settings for [HDMI IN], [DVI-D IN], [SDI IN], [DIGITAL LINK 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 output from DVI-D
of the computer does not
appear.
f Is the [EDID SELECT] setting in [DVI-D IN] or [SLOT IN] set to [EDID3] or
[EDID2:PC]?
141, 149
f The graphics accelerator driver of the computer may need to be updated to the
latest version.
―
f The condition may improve by setting [EDID SELECT] in [DVI-D IN] or [SLOT IN]
and then restarting the computer.
141, 149
Image from HDMI
compatible device does
not appear or is disrupted.
f Is the HDMI cable connected securely? 59
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? 309
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