Troubleshooting - Sharp PG-D3750W Operation Manual

Troubleshooting

No picture and no sound or
projector does not start.
Sound is heard but no
picture appears
(or picture is dark).
Color is faded or poor.
Picture is blurred;
noise appears.
Picture appears but no
sound is heard.
Data image is not
centered.
An unusual sound is
occasionally heard from
the cabinet.
• Projector power cord is not plugged into the wall outlet.
• Power to the external connected devices is off.
• The lens shutter is closed.
• The selected input mode is wrong.
• Cables are incorrectly connected to the projector.
• Remote control battery has run out.
• External output has not been set when connecting notebook computer.
• The lamp unit cover is not installed correctly.
• Cables are incorrectly connected to the projector.
• "Bright" is set to minimum position.
• Depending on the computer you are using, an image may not be
projected unless the signal output setting of the computer is switched
to the external output. Refer to the computer's operation manual for
how to switch its signal output settings.
• Image adjustments are incorrectly set.
• Make adjustments of "Color" and "Tint" in "Picture Mode" and lower the
"BrilliantColor TM " value.
(Video Input only)
• Video input system is incorrectly set.
• Adjust the focus.
• The projection distance exceeds the focus range.
• There is fog on the lens. If the projector is carried from a cold room into a
warm room, or if it is suddenly heated, condensation may form on the surface
of the lens and the image will become blurred. Set up the projector at least
one hour before it is to be used. If condensation should form, remove the
power cord from the wall outlet and wait for it to clear.
(Computer Input only)
• Perform Synchronization Adjustments ("Clock" and "Phase"
Adjustment)
• Noise may appear depending on the computer.
• Cables are incorrectly connected to the projector.
• Volume is set to minimum.
• When the projector is connected to an external device and the volume
is set to minimum, the sound is not output even if you turn up the
volume of the external device.
• "Speaker" is set to "Off".
• Select "Data image is not centered" in the "Help" menu and make the
necessary adjustments.
• Depending on the computer you are using, the output resolution signal
may be different from the one you have set. For details, refer to the
operation manual of the computer.
• If the picture is normal, the sound is due to cabinet shrinkage caused
by room temperature changes. This will not affect operation or
performance.
25
–
26, 29
29
21–25
15
21
56, 57
21–25
41
–
41
51
27
20
–
51
–
21–25
29
46
51
–
–
59