Filter
Top Products
14-32
User Guide for Cisco Digital Media Manager 5.2.x
OL-15762-03
Chapter 14 Touchscreens, Projectors, and Displays
Reference
Q.
When is it necessary to repeat the calibration of a touchscreen?
A.
You must repeat this calibration whenever you:
• Rotate a touchscreen or change its resolution.
• Replace a touchscreen.
Q.
What can cause a properly calibrated touchscreen to operate as if it is not calibrated?
A.
If this happens to you, unplug the serial cable (or USB cable) that connects this touchscreen to
your DMP. Then, plug that cable back in again.
FAQs About Product Quality
• Why are some pixels unexpectedly bright, or black?
Q.
Why are some pixels unexpectedly bright, or black?
A.
Cisco LCD displays use advanced semiconductor technology with extremely high precision.
Nonetheless, the red, green, blue and white pixels might seem unexpectedly bright sometimes, or
you might notice some black pixels. This is not the result of low quality or a malfunction and you
can continue to use your display without incident.
Troubleshoot Cisco Professional Series LCD Displays
• Troubleshoot the Power Indicator, page 14-32
• Troubleshoot Image Quality, page 14-32
• Troubleshoot Audio Quality, page 14-33
• Troubleshoot the Handheld Remote Control Unit, page 14-33
• Run a Diagnostic Self-Test on a 40- or 52-inch Cisco LCD Display, page 14-33
Troubleshoot the Power Indicator
Problem The screen is blank AND the power indicator is off.
Solution Ensure that the power cord is firmly connected and the display is turned on.
Problem The power indicator blinks.
Solution Wait for less than 1 minute. The display is saving changes made to its settings.
Troubleshoot Image Quality
Problem A message states, "Check Signal Cable."
Solution Ensure that the...
• Signal cable is firmly connected to the video sources.
• Video sources are turned on.
Problem The image rolls vertically.
Solution Check if the signal cable is securely connected. Re-connect it, if necessary.