Troubleshooting
Please check following points. For details, see the corresponding pages.
Problem Cause
Reference
page
Power does not turn
on.
f The power cord may not be connected.
f No electric supply is at the wall outlet.
f The circuit breakers have tripped.
f Is the lamp indicator <LAMP> or temperature indicator <TEMP> lit or blinking?
f The lamp cover has not been securely installed.
—
—
—
127
130
No picture appears.
f Are connections to external devices correctly performed?
f The input selection setting may not be correct.
f The [BRIGHTNESS] adjustment setting may be at the minimum setting.
f Is the external device that is connected to the projector working properly?
f The AV MUTE function may be in use.
37
45
57
—
50, 77
The picture is fuzzy.
f The lens cap is still attached to the lens.
f The lens focus may not have been set correctly.
f The projector may not be at the correct distance from the screen.
f The lens may be dirty.
f The projector may be tilted too much.
22
45
32
19
—
The color is pale or
grayish.
f [COLOR] or [TINT] adjustment may be incorrect.
f The input source which is connected to the projector may not be adjusted
correctly.
f RGB cable is damaged.
58
—
—
No sound from the
internal speaker.
f Is the external device connected correctly to the audio input terminal?
f The volume may have been set to the minimum level.
f The AV MUTE function may have been turned on.
f When the <VARIABLE AUDIO OUT> terminal is plugged-in, the projector's built-
in speaker is not available.
f The MUTE function may have been turned on.
f Is the audio input selection in [AUDIO SETTING] set correctly?
37, 38
47, 82
50, 77
37, 38
50, 82
82
The remote control
does not operate.
f The batteries may be weak.
f The batteries may not have been inserted correctly.
—
28
f The remote control signal receiver on the projector may be obstructed. 25
f The remote control unit may be out of the operation range. 25
f Strong light such as uorescent shine onto the signal receiver. 25
f The [REMOTE CONTROLLER] setting is set to [DISABLE] in [CONTROL
DEVICE SETUP].
87
f Is the ID number setting operation correct? 50
Menu screen does not
appear.
f Is the on-screen display function turned off (hidden)? 71
The control buttons of
the projector do not
operate.
f The [CONTROL PANEL] setting is set to [DISABLE] in [CONTROL DEVICE
SETUP].
87
The picture does not
display correctly.
f There may be a problem with the VCR or other signal source.
f A signal which is not compatible with the projector is being input.
—
142
Picture from a
computer does not
appear.
f The cable may be longer than the optional cable.
f The external video output from a laptop computer may not be correct.
—
—
Video from HDMI
compatible device
does not appear or it
appears jumbled.
f Is the HDMI cable securely connected?
f Turn off the power of the projector and the connected devices. Then turn the
power of the projector and the connected devices back on.
f Is a signal which is not compatible with the projector being input?
37, 38
—
142
Audio from HDMI
compatible device
does not appear.
f Set to the linear PCM audio for the connected devices. —
No picture or sound is
output from DIGITAL
LINK input.
f Are the connections between the twisted-pair-cable transmitter and the projector
or an external device correctly done?
f Is [DIGITAL LINK MODE] set to [AUTO] or [DIGITAL LINK]? Is it set to
[ETHERNET]?
f Is a signal which is not compatible with a twisted-pair-cable transmitter being
input?
—
88
—
132 -
ENGLISH
Chapter 6 Maintenance - Troubleshooting
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