Troubleshooting
2021-07-07
75
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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8.4 Serial Connection
Diagnosis
Possible Reason
Measure
Serial device
not operational
Settings of the serial
interface
Check Baud rate and general
settings.
No serial connection to
CPU
Check connection via serial
cable.
No serial connection to
end device (e.g. touch
screen, keyboard)
Connect serial end device and
switch it on.
Check connection via serial
cable.
Touch screen
not operational
Hardware handshake
Adjust serial interface to X-ON /
X-OFF software handshake.
Pos: 114 /806- IHSE/Hilfe im Problemfall/Störung am Anal og-Audi o-Anschl uss/474-xx @ 6\mod_1304586773051_6.doc @ 51437 @ 2 @ 1
