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 the warning indicator <WARNING> lit or blinking?
f
The lamp cover has not been securely installed.
—
—
—
112
115
No picture appears.
f
The video signal input source may not be connected to a terminal properly.
f
The video input selection setting may not be correct.
f
The [BRIGHTNESS] adjustment setting may be at the minimum setting.
f
The input source which is connected to the projector may have a problem.
f
The AV MUTE function may be in use.
32
40
53
—
43, 70
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.
18
41
29
17
—
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
The computer cable is damaged.
53, 54
—
—
No sound from the
internal speaker.
f
The input terminals may not have been correctly connected.
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 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?
32
43, 76
43, 70
32
43, 76
76
The remote control does
not operate.
f
The batteries may be weak.
f
The batteries may not have been inserted correctly.
f
The remote control signal receptor on the projector may be obstructed.
f
The remote control unit may be out of the operation range.
f
Strong light such as fluorescent shines onto the signal receptor.
f
The [REMOTE CONTROLLER] setting is set to [DISABLE] in [CONTROL DEVICE SETUP].
f
Is the ID number setting operation correct?
—
24
21
21
21
80
46
The control buttons of the
projector do not operate.
f
The [CONTROL PANEL] setting is set to [DISABLE] in [CONTROL DEVICE SETUP].
80
The picture does not
display correctly.
f
Is the [TV-SYSTEM], [RGB/YC
B
C
R
]/[RGB/YP
B
P
R
] selection set 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.
56
—
125
Picture 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 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.)
—
—
Picture from a HDMI
device does not appear
or picture is not stable.
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
Isn’t unsupported signal cable connected?
32, 33
—
125
No sound is output from
a HDMI device.
f
Set the sound channel of the attached device to Linear PCM.
—
Attention
f
If the problem persists, after confirming the contents of the table, please consult your dealer.
ENGLISH
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117
Chapter 6 Maintenance - Troubleshooting
