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40 | CHAPTER 5 – MAINTAINING AND TROUBLESHOOTING YOUR SMART BOARD
685ix INTERACTIVE WHITEBOARD SYSTEM
99-00984-20-B0
– System Warning Lights on page 51
• Troubleshooting Image Issues on page 55
– Image Projection Issues on page 55
– Image Compatibility Issues on page 56
• Other Common Issues on page 58
– Standard Use Issues on page 58
– Projector Error States on page 59
• Occasional Maintenance Instructions on page 62
– Replacing the UX60 Projector’s Lamp Module on page 62
– Slipping Projector Images on page 65
– Accessing the Service Menu on page 65
After Installing Your SMART Board 685ix
Interactive Whiteboard System
Adjusting Keystone Alignment
Keystone errors occur when the projected image isn’t perpendicular to the screen.
Vertical keystone errors can occur when you mount the UX60 projector and the
SMART Board 685 interactive whiteboard on an uneven surface or a wall that has
obstructions.
The image appears shorter across the top when the image path’s distance from the
projector to the top of the screen is shorter than the distance to the bottom of the
screen. The image appears shorter across the bottom when the image path’s distance
from the projector to the bottom of the screen is shorter than the distance to the top of
the screen.
From the projector, the image path is
too short along the top.
From the projector, the image path is
too short along the bottom.