You may not operate this function in MagicInfo.
The Input source of TV works only on TV model.
The Maintenance Control function is available only for the displays where the power status is ON.
Troubleshooting
1.The display you wish to control does not appear on the Power Control Info Grid
-Check the connection of RS232C. (Check if it is properly connected to the Com1 port)
-Check the displays to see if any of the other displays connected have the same ID. If more than one displays have the same ID, those displays are not properly detected by the program due to data conflict.
-Check if the Display Set ID is a number between 0 and 25. (Adjust using the Display menu)
Note : A Display Set ID must be a value between 0 and 25 .
2.The display you wish to control does not appear on the other Control Info Grids
-Check to see if the display power is ON. (You can check this in Power Control Info Grid)
-Check if you can change the input source of the display.
3.The dialogue box appears repeatedly.
-Check to see if the display you wish to control is selected. 
4.Both On Timer and Off Timer have been set but different time is showing.
-Apply current time to synchronize the display clocks.
5.The remote may not function properly when you turn off the remote Function, disconnect the
<Note> This program may malfunction due to problems in communication circuits or interference from electronic appliances nearby.
Settings Value Display In Multiple Display Mode
When there are more than one displays connected, the settings values are displayed as follows. 1. No selection: Displays the Factory Default Value.