FAQ > Medical Monitor
Why the display is black when powering on?
1. The power switch is not turned on.
Please ensure the power switch, at back of the monitor, is turned on.
 
     
*MMS-27                                                                                        *MMS-21
 
2. The power cord is not well connected or the adapter is broken
Follow below steps to check:
a. Please check whether the power cord is well connected to the power source and to the power adapter.
b. Please check the LED light on the power adaptor is lighted on for MMS-21 series. For MMS-27 series, please check whether the power LED at the bottom of panel is lighted on (as below picture).
 
 
3.Monitor is entering sleep mode or other issues
a. When the power LED shows orange light, the monitor is entering sleep mode. Please press any hotkey to wake up the monitor
b. If the power LED shows green light, there might be other technical issues. Please contact our sales team for support.
2021/06/04
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