Avocent Emerge EMS2000 series, Installer/User Manual

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Emerge EMS 2000 series Installer/User Guide
Appendix B: Troubleshooting
No video image is received at the receiver unit.
• Check that the both the red power indicators are lit on both the transmitter and receiver units
- if they are not, then there is a power problem. Both units require power from their supplied
power adaptors.
• Check that the green video input indicators are lit on both the transmitter and receiver units
- if one or both are not lit, then a valid video input signal is not present at the input to that unit.
• Check the link cable(s) that connect the transmitter and receiver unit(s) for soundness.
• If possible, try using an alternative twisted pair link connection between the units.
• If the sharpness control is set too high, the monitor may not be able to display a picture. Try
reducing the sharpness setting. Please refer to the Adjustment s section in the ‘Operations’
chapter.
• If not already fitted, connect a monitor to the
RGBHV OUT
port of the transmitter unit and
check for a correct video image output.
Video image at the receiver unit is distorted or shadows appear to the right of
displayed objects.
Adjustments are required to compensate for the length of the twisted pair cable being used. If
video problems persist:
• Please refer to the ‘Brightness and Sharpness Adjustments’ section in the ‘Operations’ chapter.
• If the overall video image is ‘fuzzy’ and/or has colored shadows you may need to make skew
adjustments (EMS2110R receivers only). This procedure allows you to finely tune the red,
green and blue video signal timings to overcome most color separation problems. Please refer
to the ‘Skew Compensation Adjustments’ section in the ‘Operations’ chapter.
Serial communications are not functioning
• Check that SW10 on the EMS2400T is set to OFF.
Power is applied via the power supply but the unit operation has stopped.
• Each unit has an internal automatic cut-out fuse to protect against power surges. To reset,
remove power from the unit for one second and then reconnect.
No sound can be heard on the speakers connected to the receiver
unit
• If not already fitted, connect speakers to the port of the transmitter unit and check for a
correct audio output.
• Check that the both the red power indicators are lit on both the transmitter and receiver units
- if they are not, then there is a power problem. Both units require power from their supplied
power adaptors.