Samsung MCC8 - Manual (Page 45)

Appendix F: Troubleshooting
P ROBLEM S OLUTION
No power. a. Check power cord.
b. Make sure power switch is turned ON.
c. Check cable connection from PC to MasterConsole II.
No video display for one
or all computers. a. Check video cable’s connection to the PC.
b. Check the monitor and PC: Turn off power to MasterConsole and
the PCs. Connect the monitor to the PC directly, boot the PC, and
make sure the monitor has the proper display. If it does not, the
problem is either with your PC, or the monitor is not compatible with
your PC. If it does display, continue to Troubleshooting #3.
The monitor cannot
correctly display the
video output from some
of the PCs. a. The monitor probably does not match the video outputs. If the
monitor is a single mode type VGA, all PCs must have the same type
of video output.
b. (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 correct, the
monitor at MasterConsole 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 Computer for help if necessary.
All PCs powered up
without keyboard error,
but the keyboard at
MasterConsole II has no
control (cannot input to
any PC). a. Make sure the keyboard is connected firmly into MasterConsole II.
Disconnect and reconnect keyboard.
b. Replace keyboard. (MasterConsole II allows hot re-connection of
keyboard at its Keyboard port.)
c. In a two-tier configuration, check that the MasterConsole II with the
keyboard connected is the base unit.
Repeated “KB ERROR"
at power-up of PC. a. The keyboard cable from the PC to MasterConsole II is loose.
Secure the connection and power up the PC again.
b. If the problem occurs after MasterConsole II has been installed for
a period of time, and occurs on PCs that have previously worked with
MasterConsole II , then some components are out of order. Verify that
the PC works with the keyboard when connected directly. Then
contact your dealer or Raritan Computer for service.
After a period of trouble-
free operation, the
keyboard attached to
MasterConsole II locks
(unable to input
keystrokes) when a
particular PC is selected,
but works normally when
other PCs are selected. a. The most likely cause of the problem is either a voltage "spike"
(increase) or a "brown out" (decrease) in the power supply, which
would cause the microprocessors in MasterConsole II to malfunction.
A short-term solution to the problem is to try to recover operation by
turning the MasterConsole II power switch off and on. Then, if
necessary, restart all PCs. The long-term method of avoiding this
problem is to power MasterConsole from a UPS.
b. Check keyboard connection.
Repeated "MOUSE
INSTALLATION
FAILURE" at power-up
of PC. a. The mouse cable from the PC to MasterConsole II is loose. Secure
the connection and power up again.
b. If the problem only occurs to new PCs which are being added to
the system, the firmware in the KVM (MasterConsole II internal
mouse emulator) may need to be upgraded to a later version to be
compatible with newer PCs. Contact your dealer or Raritan Computer
for Service.
After a period of trouble-
free operation, the
mouse attached to a. Try to identify if the problem is originating from the PC by
reconnecting the PC to a different channel with a different cable.
Then power up the PC. If the problem is not with the cable or with the