Antminer S19j Pro hash board has a total of 4 temperature-sensing chips, which are connected in series. This video will explain in detail the circuit structure of each temperature sensor chip, and to check if there is a fault. The voltage of pins 1, 2 and 8 of each temperature sensor chip is 3.3V. It is worth mentioning that if the temperature sensing circuit is abnormal, it may also be caused by the PIC chip not working properly.
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