CAS CL8000 Series - Troubleshooting; Communications Issues

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4. TROUBLESHOOTING
1. Communications Issue
Symptom
Troubleshoot
Can’t access the LAN
▪ Check the hub or the switch
▪ Check the RJ45 network cable
▪ Check the LAN LED
▪ Reinstall the LAN card
▪ Replace the mainboard
2. USB Issues
Symptom
Troubleshoot
USB port does not work
▪ Check the status of plugged devices in the windows’ Device
Manager
▪ Check USB device status and connectivity
▪ Remove and reinstall the USB driver
▪ Change the USB device
3. Display Issues
Symptom
Troubleshoot
LED backlight does not work
▪ Check the display cable
▪ Check the inverter cable
▪ Replace the inverter cable
▪ Replace the display panel