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DAC+ADC pro lost dac on i2c bus

I use a combination of the DAC+ADC pro with the AAMP60 on a Raspi 3B+

Everything worked fine until the last hearing of music 2 days ago. Now the DAC seems to be dead.

See

"pcm512x: probe of 1-004d failed with error -121"

with dmesg.

i2cdetect find the ADC on 0x4a but nothing else. So the i2c bus seems to work.

Any suggestions beyond using a trash box on its purpose?

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