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Projector displays a dim image

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Information

 
Overview
The projected image from a SMART projector is too dim.
Details
Issue
Symptoms
The image is dim.
Cause
There are a number of potential causes of a dim projected image:
  • The lens could be dirty or dusty.
  • The projector's brightness level might not be set correctly.
  • The projector's lamp could be nearing end of life.
Solution
  • For basic troubleshooting information, see the links below.
  • Turn the projector off and back on.
  • Clean the lens of the projector. Clean using only a lens cloth and a proper solution. Those materials are available from photography stores.
  • Disconnect all the cables from the projector except for the power cable to see if the blue screen with the SMART logo is also dim. If the SMART logo is adequately bright, try replacing the cable or using a different video source.
  • From the projector's service menu, perform a factory reset of the projector. (See the projector's users guide for information about accessing the service menu). After the reset, access the menu and increase the brightness.
  • Replace the dim lamp with a known good lamp. See Lamp life and common failures explained for SMART projectors for more information about lamp failures.
Important: Do not try to use compressed air to remove dust from the inside of the projector. Although it may appear that there is dust inside the projector, this dust does not contribute to a noticeable reduction in image brightness. Trying to remove the dust could damage the projector.

Basic troubleshooting content for SMART projectors
Background
Internal Information
SMART HardwareUF35, UF45, UF55, UF65, UF75, UF70, UX60, UX80, U100, V25, V30, LR60wi, LR60wi2
SMART Software
Operating Systems
First PublishedApril 12, 2017
Last UpdatedSeptember 7, 2017
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