Help: volumio 3 on Pi Zero W and Dac RPI HiFi AMP HAT TAS5713 Amplifier

Volumio 3 lates version
Pi Zero
Power Supply: 12V 5A

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I Have this DAC for my Pi Zero W ( in theory, powering the DAC with a 12V and 5A power supply should be able to use the raspberry with only one power supply.
I don’t understand why but when I power up the DAC the raspberry doesn’t start. Can you help me?