Antminer 19 series repair course

Bitmain Antminer 19 series has attracted a lot of attention as a new miner with high hashrate and low power consumption in recent years, and most mining farms also have a large number of 19 series miners. As a newly launched miner, its maintenance guidance and skills are very vacant. If the miner is damaged, it will be sent back to the original factory for repair, which will delay time and reduce revenue. Therefore, many countries and regions need Antminer 19 series miner repair masters. ASIC miner repair courses will be explained in detail: Why does the Antminer S19 repeatedly start and stop? Why is the hashrate of the S19 hash board low or only 0? And ZMRC will continue to the solutions to the new faults of the 19 series miners.

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  • Antminer S19 Hash Board Repair Tutorial

    Antminer S19 Hash Board Repair Tutorial

    Antminer S19 hash board has 76 BM1398 ASIC chips and is powered by APW12 PSU. The conduction condition of these 4 MOS tubes is that their G-pole input is high level. When the PIC chip is working normally and 3.3V is input, the four MOS tubes will be turned on.Quickly learn how to properly repair an S19 hash board with the Antminer S19 hash board repair tutorial video.
  • S19 hash board丨DC circuit

    S19 hash board丨DC circuit

    On the Antminer S19 hash board, the DC circuit is used to control the conduction of the circuit between the ASIC chip and the control board. When the DC circuit outputs 0V, the domain voltage cannot be provided, and the whole hash board cannot work. Master the working principle and repair ideas of the S19 hash board DC circuit, and easily complete troubleshooting.
  • S19 hash board丨PIC chip

    S19 hash board丨PIC chip

    The PIC chip is used to store the computing frequency and related operating voltage information of the Antminer S19 hash board, and to control the communication between the DC circuit and the control board. The voltages of pin 1, pin 2, pin 9 and pin 10 of the PIC chip are all 3.3V. If the log shows that the PIC is faulty, you need to check the voltage of these pins first. If the voltage is normal, proceed to the next step of troubleshooting.
  • S19 hash board丨19V boost circuit

    S19 hash board丨19V boost circuit

    The Antminer S19 hash board consists of 38 voltage domains, among which, the LDO chips of the last 7 voltage domains are powered by booster circuits. The boost circuit of the S19 hash board boosts the input voltage from 14V to 19V output. How to troubleshoot if the boost circuit is broken? This video will explain in detail the repair ideas of the boost circuit and demonstrate how to measure the voltage.
  • S19 hash board丨21V boost circuit

    S19 hash board丨21V boost circuit

    There are two boost circuits on the Antminer S19 hash board. This video mainly explains the 21V boost circuit. The 21V boost circuit on the back of the S19 hash board is mainly used to turn on the 4 MOS tubes on the front. If these 4 MOS tubes cannot work normally, there may be an abnormality in the 21V boost circuit.
  • S19 hash board丨Temperature sensing circuit

    S19 hash board丨Temperature sensing circuit

    The Antminer S19 hash board has a total of 4 temperature-sensing chips, which are connected in parallel and are located on the back of the hash board. If the log shows PIC sensor NG, it means that the temperature sensing is abnormal. This lesson will mainly explain how the temperature sensing circuit works and demonstrate how to make measurements.
  • S19 hash board丨U1 and U2 Level Converter Chip

    S19 hash board丨U1 and U2 Level Converter Chip

    When repairing the Antminer S19 hash board, if the voltage of all ASIC chips is normal, but the hash board cannot be recognized by the control board, it may be that the level conversion chips at U1 and U2 are faulty. The U1 chip is used to convert the voltage of the RI signal, and the U2 chip is used to convert the voltage of the CI signal. Only when these two chips are working normally, the control board and the hash board can communicate normally.
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