3M ET 350 Benutzerhandbuch

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CHAPTER 5
Troubleshooting
About the chapter
This chapter outlines problems that may occur when using the 
3M Dynapro ET 350 monitor and suggests solution strategies. If problems 
persist after following the applicable instructions in this chapter, contact 
3M Touch Systems technical support (see page 3).
General problems
Problem
Solution
Video image is unsatisfactory.
Adjust display settings (see 
page 19).
Try reducing the refresh rate of your 
graphic card’s output.
For monitors with KVM extender 
option: 
Adjust focus and/or brightness 
dials on the remote unit of the 
KVM extender.
Consider adjusting KVM extender 
cable-length jumpers (see page 
57).
Refer to the “video” section of the 
troubleshooting chapter in the 
KVM extender manufacturer’s 
manual.*
No video image.
Make sure that the monitor is powered 
up. Listen for the sound of a fan.
Check the video extension cables 
(and, for units with the KVM extender 
option, check the CAT5 interconnect 
cable) to be sure that all connectors 
are properly and securely attached.
Make sure that the host computer’s 
monitor resolution is set for no higher 
than 1024 x 768.
*Note: References to “serial device” in the KVM manufacturer’s manual denote 
the “touch screen” of the ET 350 monitor.