Appendix D Troubleshooting - Raritan MCCAT18 User Manual

Appendix D Troubleshooting

Problem
No power
No video display for one
or all computers
The monitor cannot
correctly display the
video output from some
of the computers
All computers powered
up without keyboard
error, but the keyboard
attached to MCCAT has
no control (cannot input
to any computer)
Repeated "KB ERRORʺ
at power‐up of computer
Solution
•
Check the power cord.
•
Make sure the power switch is turned ON.
•
Check the cable connection from the computer to MCCAT.
•
Check video cableʹs connection to the computer.
•
Check the monitor and computer: Power off MCCAT and the
computers. Connect the monitor to the computer directly, boot the
computer, and make sure the monitor has the proper display. If it
does not, the problem is either with your computer, or the monitor
is not compatible with your computer. If it does display, continue to
the troubleshooting below.
•
The monitor probably does not match the video outputs. If the
monitor is a single mode type VGA, all computers must have the
same type of video output.
•
(Note: this problem occurs most often with some IBM PS/2s and IBM 63xx,
85xx, and 95xx monitors.) The intelligent type display card outputs
video signals based on the monitor ID‐pin setting in the connector of
the monitor cable. If the ID‐pin setting is incorrect, the monitor
attached to the MCCAT may have no display, become monochrome
instead of color, or become unstable. If this is the case, you will need
to provide a proper ID‐pattern to the display card. Call Raritan
technical support (see the last page) for help if necessary.
•
Make sure the keyboard is connected firmly to MCCAT. Disconnect
and reconnect the keyboard.
•
Replace the keyboard. (MCCAT allows hot re‐connection of the
keyboard at its Keyboard port.)
•
In a two‐tier configuration, check that the MCCAT with the
keyboard connected is the first tier.
•
The keyboard cable from the CIM to the computer is loose. Secure
the connection and power on the computer again.
•
If the problem occurs after MCCAT has been installed for a period
of time, and occurs on computers that have previously worked with
MCCAT, then some components are out of order. Verify that the
computer works with the keyboard when connected directly. Then
contact your dealer or Raritan for service.
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