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Troubleshooting
2021-07-09
63
8.3 USB-HID
Rear View
Front View
Diagnosis
Possible Reason
Measure
Keyboard LEDs
Shift
and
Scroll
are blinking
Keyboard in Command
Mode
Press <Esc> to leave Command
Mode.
CPU Unit:
LED
3
green or
violet
No USB connection to
CPU
Check connection of USB cable
to CPU; select another USB port
if necessary.
Remove USB and power cable
and restart CPU. Connect power
cable first.
CON Unit:
LED
3
green or
violet
Problems with USB
connection
Check connection of USB cable
to USB-HID device.
Remove DVI and power cable
and restart CON Unit. Connect
power cable first.
USB device
without function
No USB-HID device
Connect USB-HID device.
USB-HID device is not
supported
Contact dealer if necessary.
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