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Appendix
-99
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 incorrectly connected to side panel of the projector.
• Remote control batteries have run out.
•
External output has not been set when connecting notebook computer.
• Cables incorrectly connected to the side panel of the projector.
• “Bright” is set to minimum position.
• The “BLACK SCREEN” function is working.
• Image adjustments are incorrectly set.
(INPUT 1, INPUT 2, INPUT 3 only)
• Input signal type (RGB/Component) is incorrectly set.
(INPUT 4, INPUT 5 only)
• Video Input system is incorrectly set.
• 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.
• Cables incorrectly connected to side panel of the projector.
• Volume is set to minimum.
• The “MUTE” function is working.
• The “Speaker” menu is set to “OFF”.
• 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”.
• If the “Keylock Level” menu is set to “Level A” or “Level B”, all or
specific buttons on the projector are unavailable. Use the
remote control to operate the projector.
Problem
An unusual sound is
occasionally heard
from the cabinet.
Maintenance
indicator illuminates or
blinks in red.
The projector cannot be
turned on or put into the
standby mode using the
ON or STANDBY button
on the projector.
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37
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45
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27
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60
50
60
63
76
40
22
68
68
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27—36
46
46
73
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91
85
Sound is heard but no
picture appears.
Color is faded or poor.
Picture is blurred;
noise appears.
Picture appears but no
sound is heard.
No picture and no sound
or projector does not start.
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