Samsung LS27A400UJNXZA 27" IPS Monitor - Manual (Page 27)

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2nd 3rd Description
Auto Source Switch When there is no signal, the display automatically switches to the newly connected device.
― This function may not be supported depending on the model or geographical area.
Key Repeat Time Control the response rate of a button when the button is pressed.
Acceleration , 1 sec , or 2 sec can be selected. If No Repeat is selected, a command responds only once when a button is pressed.
Power LED On Configure the settings to enable or disable the power LED located at the lower part of the product.
• Working : The power LED is on when the product is turned on.
• Stand-by : The power LED is on when the product is turned off.