Antminer S19 series repair course

How to fix S19 BHB42831 hashboard 0 ASIC caused by abnormal RO level conversion chip U2?

How to fix S19 BHB42831 hashboard 0 ASIC caused by abnormal RO level conversion chip U2? How to fix S19 BHB42831 hashboard 0 ASIC caused by abnormal RO level conversion chip U2?

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