What to do if the STANDBY indicator is blinking red after turning on Marantz NR1403?
- JJacob Mack PhDSep 23, 2025
If, after turning on your Marantz Stereo Receiver, the STANDBY indicator blinks red in approximately 0.5-second intervals, the unit's amplifier circuit has likely failed. Turn off the power and contact a Marantz service advisor.
















