How to Factory Reset Marantz NR1402 5.1 HDMI Home Theater Surround Receiver

How to Factory Reset Marantz NR 1402 5.1 HDMI Multi Channel Home Theater Surround Audio Video AV Receiver
Turn off the receiver, press and hold the “Enter” button, while holding it, press and hold the “return” button, then press and hold the “power” button, when you see the display flickering, release the button and the receiver will be factory reset!