Chapter 6 Maintenance — Troubleshooting
ENGLISH - 303
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>? 83
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?
300
No image appears.
f Are connections to external devices correctly performed? 64
f Is the image input selected correctly? 84
f Is the [BRIGHTNESS] adjustment setting at a minimum? 109
f Is the external device that is connected to the projector working properly? ―
f Is the shutter function in use? 97
f Is the projection lens attached correctly? 58
f Is the lens cover still attached to the lens? 74
Image is fuzzy.
f Is the lens focus set correctly? 86
f Is the projection distance appropriate? 44
f Is the lens dirty? 28
f Is the projector installed perpendicular to the screen? ―
Color is pale or grayish.
f Are [COLOR] and [TINT] adjusted correctly? 109
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? 39
f Is the button operation disabled by sliding the <LOCK> button on the remote
control?
32
f Are there any obstructions between the remote control and the remote control
signal receiver of the projector?
33
f Is the remote control being used beyond its effective operation range? 33
f Are other forms of light, such as uorescent light, affecting the projection? 33
f Is the [REMOTE CONTROL] setting in [CONTROL DEVICE SETUP] set to
[DISABLE]?
215
f Is the <REMOTE 2 IN> terminal used for contact control? 322
f Is the ID number setting operation correct? 99
Menu screen does not
appear.
f Is the on-screen display function turned off (hidden)? 97
Buttons on the control
panel do not operate.
f Is the [CONTROL PANEL] setting in [CONTROL DEVICE SETUP] set to
[DISABLE]?
215
f Is the <REMOTE 2 IN> terminal used for contact control? 322
Image does not display
correctly.
f Is the [SYSTEM SELECTOR] selection set correctly? 116, 150
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? 327
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? 64
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? 327
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.
64
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 off and on. ―
f Is a signal which is not compatible with the projector being input? 327
Lens shift cannot be
adjusted.
f Perform [LENS CALIBRATION]. 89
f Is the Fixed-focus Lens (Model No.: ET-D3LEW50, ET-D75LE50) attached? ―
To Next Page
Loading...
