Antminer S19j Pro hash board troubleshooting for DC control board

The DC control circuit on the Antminer S19j Pro 42601 hash board is mainly to turn on the 15V voltage input by the power supply through five MOS transistors, and then output 15V as the domain voltage of the hash board. The circuit is mainly composed of 5 MOS tubes, Q6 and Q7 on the back and a 23V boost circuit. If the domain voltage is abnormal, we need to check whether the voltage in these places can work normally.

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