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Maintenance and
Troubleshooting
This chapter includes instructions on cleaning and storing the device, and provides troubleshooting solutions
for potential problems during operation.
Maintaining the TC20
For trouble-free service, observe the following tips when using the TC20:
• Do not scratch the screen of the TC20.
• The touch-sensitive screen of the TC20 is glass. Do not to drop the TC20 or subject it to strong impact.
• Protect the TC20 from temperature extremes. Do not leave it on the dashboard of a car on a hot day, and
keep it away from heat sources.
• Do not store or use the TC20 in any location that is dusty, damp, or wet.
• Use a soft lens cloth to clean the TC20. If the surface of the TC20 screen becomes soiled, clean it with a
soft cloth moistened with a diluted window-cleaning solution.
Display Best Practices
Image Retention
Image retention may occur when a static image continuously displays for extended periods of time. A user may
see a faint remnant of the image even after a new image displays. To prevent image retention:
• set the display to turn off after a few minutes of idle time.
• rotate background images on a periodic basis.
• turn off the display when the device in not in use.
• use a screen saver with the following characteristics:
• background color set to black
• use a small moving image (approximately 2% of the display size).
• move the image randomly across the screen
• screen saver should be active as long as the static image is used.
Long-Term Storage
When storing the device for long periods of time, ensure that the battery has at least 50% charge and is stored
at (temperature).
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