Mark Levinson 53 owner manual Front Panel, Status LED, Standby Button, Mark Levinson

Front Panel

Status

LED

8

Standby

Note

Mark Levinson

Front Panel

The front panel contains one LED and one button, as shown.

Status LED

Indicates the operating state of the Nº53 and provides basic diagnostic information when a fault condition occurs. Refer to the table below for descriptions of LED behavior.

LED Behavior	Description
Fully lit	Indicates that the amplifier is powered on.
Slowly blinking	Indicates that the amplifier is in Standby mode.
Dimly lit	Indicates that the amplifier is in Power Save mode
	or, when the Power switch is turned on, that the
	amplifier is initializing.
Not lit	Indicates that the amplifier is powered off.

Refer to the “Troubleshooting” section in the back of the manual for a description of the Status LED behavior when a fault is detected.

Standby Button

Places the Nº53 into Standby or Power Save mode, depending upon the state of the rear panel Power Save Mode switch. Pressing the Standby button while the amplifier is in Standby or Power Save mode turns on the amplifier.

Standby mode provides full AC power to the amplifier but mutes the outputs. Power Save mode powers only the low-voltage power supply, control circuits, and communication circuits so that only nonaudio functionality is available.

When the amplifier enters or exits Power Save mode, there’s an extended initialization period before the amplifier is fully powered on. During this period, additional Standby button presses are ignored.