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CHAPTER 10: TROUBLESHOOTING 91
CHAPTER 10: TROUBLESHOOTING
Symptoms and Solutions
SYMPTOM: PROBABLE CAUSE:
No Power.
• Loose Power Cord.
• Power switch is off.
• Paragon Matrix Switch or User Station (UST1) surge
protection invoked during a power recycling process.
Power off unit, wait 20 seconds, then power unit on.
All computers have no video
display.
• Loose Category 5e UTP cable
• Loose monitor connection
• UST1 is connected and functioning properly if <Num Lock>
key lights keyboard’s Num Lock LED.
Monitor video display for
some connected computers is
distorted.
• Monitor type does not match video output designation from
computer.
Keyboard non-functional,
even though there is no
keyboard error at power up.
Cannot input to any computer.
• Loose keyboard connection to UST1.
• Loose Category 5e UTP cable
• Keyboard broken. Hot-swap with a new keyboard
Repeated “Keyboard ERROR”
at computer power-up.
• Loose cable from computer to CIM
• Loose Category 5e UTP cable
• Paragon components may be out of order. Verify that
computer works with a keyboard directly connected.
Contact Raritan Technical support for assistance.
Keyboard suddenly locks-up
when a particular computer is
selected, but works normally
when other computers are
selected.
• Loose keyboard cable connection
• Voltage spike (increase) or brown out (decrease) in power
supply to connected Paragon Matrix Switch unit. Power
down Switch, wait 20 seconds, then power on unit.
Powering Switch from a UPS avoids variation in power
supply to Switch.
Repeated “MOUSE
INSTALLATION FAILURE”
at computer power-up.
• Loose mouse cable from computer to CIM
• Loose Category 5e UTP cable
• If error occurs only with new computers being added to
system, contact Raritan Technical Support for assistance –
mouse emulation firmware may need to be upgraded for
compatibility with newer computers.