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Chapter 5Maintenance — Troubleshooting
164 - 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>? 57
f Is the wall outlet supplying electricity?
f Have the circuit breakers tripped?
f Are the lamp indicator <LAMP1>/<LAMP2> or the temperature indicator <TEMP> lit
or ashing?
157
f Is the lamp unit cover attached? 162
No image appears.
f Are connections to external devices correctly performed? 49
f Is the input selection setting correct? 62
f Is the [BRIGHTNESS] adjustment setting at a minimum? 71
f Is the external device that is connected to the projector working properly?
f Is the shutter function in use? 61
f If the power indicator <ON (G)/STANDBY (R)> is ashing in red, consult your
dealer.
f Is the lens cover still attached to the lens? 55
Image is fuzzy.
f Is the lens focus set correctly? 58
f Is the projection distance appropriate? 33
f Is the lens dirty? 19
f Is the projector installed perpendicular to the screen?
Color is pale or grayish.
f Is [COLOR] or [TINT] adjusted correctly? 72
f Is the external device connected to the projector adjusted correctly? 49
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? 29
f Are there any obstructions between the remote control and the remote control
signal receiver of the projector?
25
f Is the remote control being used beyond its effective operation range? 25
f Are other forms of light, such as uorescent light, affecting the projection? 25
f Is the [REMOTE CONTROL] setting in [CONTROL DEVICE SETUP] set to
[DISABLE]?
131
f Is the <REMOTE 2 IN> terminal used for contact control? 176
f Is the ID number setting operation correct? 29
Menu screen does not
appear.
f Is the on-screen display function turned off (hidden)? 101
Buttons on the control
panel do not operate.
f Is the [CONTROL PANEL] setting in [CONTROL DEVICE SETUP] set to
[DISABLE]?
131
f Is the <REMOTE 2 IN> terminal used for contact control? 176
Image does not display
correctly.
f Is the [SYSTEM SELECTOR] selection set correctly? 76
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? 178
Image from a computer
does not appear.
f Is the cable too long? (Use D-Sub cables that are 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 “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 [DVI-D IN] setting [EDID3] or [EDID2:PC]? 98
f The graphics accelerator driver of the computer may need to be updated to the
latest version.
f The computer may need to be restarted after performing the [DVI-D IN] setting. 98
Video from HDMI
compatible device does
not appear or it appears
jumbled.
f Is the HDMI cable connected securely? 49
f Turn the power of the projector and the external device on and off.
f Is a signal which is not compatible with the projector being input? 178
Cannot control the
projector with Art-Net.
f Are the connections between the twisted-pair-cable transmitter and the projector or
an external device correctly done?
f Is the [Art-Net] setting [ON]?
f Are the [PORT ADDRESS] and [START ADDRESS] settings correct?
164


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