No display

I have Sonos 5500 not displaying on the monitor but on Prog Graphics showing EF791-C09F-EC00 can anyone help with this?

Wed Jun 23 2021Reply from dferguson

Power supply A/D converter calibration failed: offset.

Thu Jun 24 2021Reply from Adekeye

Thanks for your response. Can you support me to fix the power module or I need to replace it?

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