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Chapter 5 Maintenance — Troubleshooting
136 - 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>? 49
f Is the wall outlet supplying electricity? ―
f Have the circuit breakers tripped? ―
f Is the lamp indicator <LAMP> or the temperature indicator <TEMP> lit or ashing? 129
f Is the lamp cover attached securely? 133
No image appears.
f Are connections to external devices correctly performed? 42
f Is the input selection setting correct? 53
f Is the [BRIGHTNESS] adjustment setting at a minimum? 65
f Is the external device that is connected to the projector working properly? ―
f Is the shutter function in use? 53
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? 48
Image is fuzzy.
f Is the lens focus set correctly? 51
f Is the projection distance appropriate? 34
f Is the lens dirty? 20
f Is the projector installed perpendicular to the screen? ―
Color is pale or grayish.
f Is [COLOR] or [TINT] adjusted correctly? 65
f Is the external device connected to the projector adjusted correctly? 42
f Is the RGB cable damaged? ―
Audio is not output.
f Is the external device connected correctly to the audio input terminal? 29
f Is [MUTE] in [AUDIO SETTING] set to [ON]? 95
f Is the audio input selection in [AUDIO SETTING] set correctly? 95
Audio is not output from
the built-in speaker.
f Is [BUILT-IN SP] in [AUDIO SETTING] set to [OFF]? 95
f Is the audio input selection in [AUDIO SETTING] set correctly? 95
Remote control does not
respond.
f Are the batteries depleted? ―
f Is the polarity of the batteries set correctly? 30
f Are there any obstructions between the remote control and the remote control
signal receiver of the projector?
27
f Is the remote control being used beyond its effective operation range? 27
f Are other forms of light, such as uorescent light, affecting the projection? 27
f Is the [REMOTE CONTROL] setting in [CONTROL DEVICE SETUP] set to
[DISABLE]?
108
f Is the <REMOTE 2 IN> terminal used for contact control? 145
f Is the ID number setting operation correct? 30
f Is the cable that is connected to the <REMOTE 1 IN> terminal connected to the
remote control wired terminal?
31
Menu screen does not
appear.
f Is the on-screen display function turned off (hidden)? 81
Buttons on the control
panel do not operate.
f Is the [CONTROL PANEL] setting in [CONTROL DEVICE SETUP] set to
[DISABLE]?
108
f Is the <REMOTE 2 IN> terminal used for contact control? 145
Image does not display
correctly.
f Is the [SYSTEM SELECTOR] selection set correctly? 68
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? 148
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 “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]? 80
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. 80