3M X21i - Page 104

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3M™ Digital Projector X21i/X26i
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Symptoms Solution
Reference
page
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The projector does not recognize the USB storage
device inserted into USB TYPE A port.
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The FREEZE function is working.
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Color settings are not correctly adjusted.
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COLOR SPACE setting is not suitable.
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The brightness and/or contrast are adjusted to an
extremely low level.
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The projector is operating in Eco mode.
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44
The lamp is approaching the end of its product
lifetime.
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Either the focus and/or horizontal phase settings are
not properly adjusted.
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The lens is dirty or misty.
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lens
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Troubleshooting
Symptoms that may be mistaken for machine defects (continued)