Table of Contents
Troubleshooting
Review the following points. For details, see the corresponding pages.
Problems
Power does not turn on.
No image appears.
Image is fuzzy.
Image is dark
Color is pale or grayish.
Remote control does not
respond.
Menu screen does not
appear.
Buttons on the control
panel do not operate.
Image does not display
correctly.
Image from a computer
does not appear.
206 - ENGLISH
Chapter 6 Maintenance — Troubleshooting
f Is the power plug firmly inserted into the outlet?
f Is the switch set to ?
f Is the wall outlet supplying electricity?
f Have the circuit breakers tripped?
f Are the light source indicators / blinking?
f Is the temperature indicator lit or blinking?
f Are connections to external devices correctly performed?
f Is the input selection setting correct?
f Is the [BRIGHTNESS] adjustment setting at a minimum?
f Is the external device that is connected to the projector working properly?
f Is the shutter function in use?
f Is the projection lens attached correctly?
f Is the lens cover still attached to the lens?
f Is the lens focus set correctly?
f Is the projection distance appropriate?
f Is the lens dirty?
f Is the projector installed perpendicular to the screen?
f Is the [CONTRAST] adjustment setting at a minimum?
f Is the setting value of [LIGHT OUTPUT] set small?
f Are the light source indicators / blinking?
It may improve by reattaching the projection lens.
f Are [COLOR] and [TINT] adjusted correctly?
f Is the external device connected to the projector adjusted correctly?
f Is the computer cable damaged?
f Are the batteries depleted?
f Is the polarity of the batteries set correctly?
f Are there any obstructions between the remote control and the remote control signal
receiver of the projector?
f Is the remote control being used beyond its effective operation range?
f Are other forms of light, such as fluorescent light, affecting the projection?
f Is the [REMOTE CONTROL] setting in [CONTROL DEVICE SETUP] set to
[DISABLE]?
f Is the terminal used for contact control?
f Is the ID number setting operation correct?
f Is the on-screen display function turned off (hidden)?
f Is the [CONTROL PANEL] setting in [CONTROL DEVICE SETUP] set to [DISABLE]?
f Is the terminal used for contact control?
f Is [SYSTEM SELECTOR] set properly?
f Is [RGB1 INPUT SETTING] set correctly?
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?
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 the "Fn" + "F3" keys or the "Fn" + "F10"
keys simultaneously. This will differ depending on the model of the computer. Refer
to the user manual provided with your computer.)
Points to be checked
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Table of Contents
