Sharp DT-400 Projector User Manual


 
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Appendix
Troubleshooting
Check
Projector power cord is not plugged into the wall outlet.
Power to the external connected devices is off.
The selected input mode is wrong.
Cables are incorrectly connected to the rear panel of the projector.
External output has not been set when connecting notebook computer.
“Contrast” and “Bright” are set to minimum position.
Image adjustments are incorrectly set.
(Video Input only)
Video input system is incorrectly set.
(INPUT 5)
Input signal type (RGB/Component) is incorrectly set.
“OSD Display” is set to “ (OFF)”.
Adjust the focus.
The projection distance exceeds the focus range.
(Computer Input only)
Perform “Fine Sync” Adjustments. (“Clock” Adjustment)
Perform “Fine Sync” Adjustments. (“Phase” Adjustment)
Noise may appear depending on 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.
See “Maintenance Indicators”.
When temperature inside the projector increases, the cooling
fan runs faster.
The lamp will eventually need to be changed.
The lamp has reached the end of its life. Replace the lamp.
Change the input signal type.
Problem
On-screen display does
not appear.
An unusual sound is
occasionally heard
from the cabinet.
Maintenance
indicator illuminates or
blinks in red.
The cooling fan
becomes noisy.
The lamp takes a long
time to turn on.
Picture is dark.
Image is green on
INPUT 5 Component.
Image is pink (no green)
on INPUT 5 RGB.
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Color is faded or poor.
Picture is blurred;
noise appears.
No picture
This projector is equipped with a microprocessor. Its performance could be adversely affected by
incorrect operation or interference. If this should happen, unplug the Unit and plug it in again after
more than 5 minutes.
For the location of the nearest Sharp Authorized Service Center, or to obtain product litera-
ture, accessories, supplies or customer assistance, please call 1-800-BE-SHARP (1-800-237-
4277) or visit SHARP’s website (http://www.sharpusa.com).
Service Information (For the U.S.)
DT400_E_P61_68.p65 04.10.18, 1:26 PM61