11.2 Error messages - main monitorThe following error messages can be viewed by pressing M N ® select “Information display” ® “Statusof connected devices”.Display Cause & Solution Page“Cannot be used.” R The wiring between the main monitor and extension monitor is notconnected.→ Check the wiring connections.R The registration number used for the extension monitor is different onthe main monitor and extension monitor.→ Use the same registration number on the main monitor andextension monitor.R 2 extension monitors are using the same registration number.→ Cancel 1 of the extension monitors so that it becomes a mainmonitor again and then re-register it with a different registrationnumber.R Power is not connected to the extension monitor.→ Connect power to the extension monitor.2323“Not registered.” R The extension monitor has not been registered on the main monitor. 2311.3 Error messages - extension monitorDisplay Cause & Solution Page“Cannot connect tothe main monitor.Please check theconnection”R The wiring between the main monitor and extension monitor is notconnected.→ Check the wiring connections.R The extension monitor has not been registered on the main monitor.→ Register the extension monitor on the main monitor.R The registration number used for the extension monitor is different onthe main monitor and extension monitor.→ Use the same registration number on the main monitor andextension monitor.232711. Troubleshooting