14-31
UserGuide for Cisco Dig ital Media Manager 5.2.x
OL-15762-03
Chapter14 Touchscreens, Projectors, and Displays
Reference
FAQs and Troubleshooting
•FAQs, page14-31
•Troubleshoot Cisco Professional Series LCD Displays, page14-32
FAQs
•FAQs About Cleaning and Maintenance, page14-31
•FAQs About Daily Operation, page14-31
•FAQs About RS-232, page14-31
•FAQs About Touchscreens, page 14-31
•FAQs About Product Quality, page 14-32
FAQs About Cleaning and Maintenance•How should I clean and maintain a Professional Series display?
Q.
How should I clean and maintain a Professional Series display?
A.
For cleaning and maintenance guidelines, see the Safety Instructions section called “Cleaning the
Display, Its Plug, and Its Outlet Safely” in User Guide for Cisco LCD Professional Series Displays
on Cisco.com.
FAQs About Daily Operation•Why might display autodetection fail?
Q.
Why might display autodetection fail?
A.
The display autodetection feature in DMPDM fails unless you use an HDMI signal cable (with or
without a DVI adapter) to connect a presentation system to your DMP.
FAQs About RS-232•Why does my DMP 4400G run very slowly while its RS-232 features are enabled?
Q.
Why does my DMP 4400G run very slowly while its RS-232 features are enabled?
A.
The likeliest explanation is that your signal cable is faulty. Try substituting the equivalent cable from
a DMP that operates as expected when RS-232 features are enabled. If doing this has no effect,
restore your DMP to its factory-default settings and then configure it once more to support RS-232.
FAQs About Touchscreens•What should I do when a message states that my touchscreen must download a characterization file?
•When is it necessary to repeat the calibration of a touchscreen?
•What can cause a properly calibrated touchscreen to operate as if it is not calibrated?
Q.
What should I do when a message states that my touchscreen must download a characterization file?
A.
Do not disturb or interrupt the automated process. It occurs only once, and takes approximately
10 minutes to finish. When it is finished, your touchscreen will clear the message automatically.