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Chapter 5 Maintenance — Troubleshooting
ENGLISH - 111
Troubleshooting
Review the following points. For details, refer to 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 turned <OFF>? 33
f
Is the wall outlet supplying electricity?
f
Have the circuit breakers tripped?
f
Is the temperature indicator <TEMP> or the light source indicator <LIGHT> lit or
ashing?
108
No image appears.
f
Are connections to external devices correctly performed? 26
f
Is the input selection setting correct? 37, 73
f
Is the [BRIGHTNESS] adjustment setting at a minimum? 46
f
Is the external device that is connected to the projector working properly?
f
Is the AV mute function in use? 36
The image is fuzzy.
f
Is the lens focus set correctly? 34
f
Is the projection distance appropriate? 24
f
Is the lens dirty? 15
f
Is the projector installed perpendicular to the screen?
The color is pale or grayish.
f
Is the [COLOR] or [TINT] adjusted correctly? 46
f
Is the external device connected to the projector adjusted correctly? 26
f
Is the RGB cable damaged?
The remote control does
not respond.
f
Are the batteries depleted?
f
Is the polarity of the batteries set correctly? 21
f
Are there any obstructions between the remote control and the remote control signal
receiver of the projector?
18
f
Is the remote control being used beyond its effective operation range? 18
f
Are other forms of light, such as uorescent light, affecting the projection? 18
f
Is the [REMOTE CONTROL] setting in [CONTROL DEVICE SETUP] set to
[DISABLE]?
86
f
Is the ID number setting operation correct? 21
The buttons on the control
panel do not operate.
f
Is the [CONTROL PANEL] setting in [CONTROL DEVICE SETUP] set to [DISABLE]?
86
The image does not display
correctly.
f
Is the [SYSTEM SELECTOR] selection set correctly? 49
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? 120
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 of the laptop computer set correctly? (Ex.: The external
output settings may be switched by pressing the “Fn” + “F3” or “Fn” + “F10” keys
simultaneously. Since the method varies depending on the computer type, refer to
the user manual provided with your computer.)
Image from a computers
DVI-I output does not
appear.
f
Is the [DVI-I IN] setting set to [EDID3]/[EDID2]? 61
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 [DVI-I IN] settings. 61
f
Is the [DIGITAL/ANALOG] setting in [DVI-I IN] correct? 61
Video from HDMI
compatible device does
not appear or it appears
jumbled.
f
Is the HDMI cable connected securely? 26
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?
120
No audio is coming from
the HDMI compatible
device
f
Set audio of the external device to linear PCM.
f
Check [AUDIO IN SELECT] in [AUDIO SETTING]. 77
f
When there is no audio through the HDMI cable connection, use the <AUDIO IN>
terminal.
77
111


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