3M X20 Thermometer User Manual


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64
Troubleshooting
Phenomena that may be easy to be mistaken for machine defects
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Phenomenon Cases not involving a machine defect
Reference
page
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The electrical power cord is not plugged in.
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10
The main power source has been interrupted during
operation such as by a power outage (blackout), etc.
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Either there is no lamp and/or lamp door, or either of
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57
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The signal cables are not correctly connected.
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Signal source does not correctly work.
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The input changeover settings are mismatched.
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The signal cables are not correctly connected.
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The MUTE function is working.
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14
The volume is adjusted to an extremely low level.
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The AUDIO setting is not correct.
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The lens cover is attached.
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The signal cables are not correctly connected.
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8
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© 3M 2006. All Rights Reserved.
3M™ Digital Projector X20
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