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Derek PierceAug 21, 2025
What to do if Yamaha RIVAGE PM10 shows M1 [ERR P01] POWER A OFF?
- NNicole PhamAug 21, 2025
If your Yamaha Music Mixer displays the error 'M1 [ERR P01] POWER A OFF', it means power is not being supplied from power supply unit A. Ensure that the power switch on power supply unit A is turned on and that the power cord is properly connected to both the unit and power supply unit A.