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5. Cleaning and Troubleshooting
5.1 Cleaning
Caution when using the Jamboard
• Do not bring your hands, face or objects close to the ventilation holes of the display. The top of the Jamboard display is
usually very hot due to the high temperature of exhaust air being released through the ventilation holes. Burns or personal
injuries may occur if any body parts are brought too close. Placing any object near the top of the display could also result
in heat related damage to the object as well as the display itself.
• Be sure to disconnect all cables before moving the Jamboard. Moving the Jamboard with its cables attached may damage
the cables and thus cause fire or electric shock.
• Disconnect the power plug from the wall outlet as a safety precaution before carrying out any type of cleaning or
maintenance procedure.
Front Panel Cleaning Instructions
• The front of the Jamboard touch-display has been specially treated. Wipe the surface gently using only a cleaning cloth or
a soft, lint-free cloth.
• If the surface becomes dirty, soak a soft, lint-free cloth in a mild detergent solution. Wring the cloth to remove excess
liquid. Wipe the surface of the Jamboard touch-display to remove dirt. Then use a dry cloth of the same type to dry.
HOW TO SPOT MURA
There are many symptoms of Mura and also multiple causes. Several of these are listed below:
• Impurities or foreign particles in the crystal matrix
• Uneven distribution of LCD matrix during manufacturing
• Non-uniform luminance distribution of the backlight
• Panel assembly induced stress
• Flaws within the LCD cells
• Thermal induced stress - high temperature operation over long periods of time
HOW TO AVOID MURA
Although we can not guarantee the complete eradication of Mura every time, in general the appearance of Mura can be
minimized by these methods:
• Lower the backlight brightness
• Use a screen saver
• Reduce the ambient temperature around the unit
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