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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.