Avalon Repair Course - ZMRC

The Avalon miner maintenance course mainly includes the theoretical basic knowledge of hash board maintenance, such as the power supply process and signal direction of the A821 hash board, A921 troubleshooting, and the repair of the A10 series hash board. Of course, there is also the use of the main tools in the Avalon hash board repair process, such as how the oscilloscope tests the signal, and how to use the constant temperature heating platform to solder the ASIC chip.

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Avalon A821 hash board repair tutorial

Avalon A821 hash board is the base hash board for AvalonMiner. The A821 hash board has a total of 26 ASIC chips, and each chip is a voltage domain, and the voltage domains are connected in series. Its powering mainly includes the powering board 12V input and boost circuit powering. It is worth mentioning that the Avalon hash board has a total of 4 signals. Avalon A821 hash board repair tutorial will take you to learn more in detail.
Measurement method for Avalon A821 hash board powering unit

If the Avalon A821 hash board cannot operate normally, the most important thing for us to troubleshoot is to measure whether the voltage of its powering unit is normal. For example, whether the main powering has 12V input, whether the input voltage of the LDO is about 3V, and so on. Here we will mainly demonstrate how to measure the voltage of the A821 hash board powering unit and the correct value of its voltage.
Avalon A921 hash board repair tutorial

Avalon A921 hash board has a total of 26 ASIC chips. The hash board has the same structure as the A821. Each chip is a voltage domain, and the voltage domains are connected in series. There have domain powering, LDO powering and boost circuit powering. The maintenance of the A921 hash board is mainly to repair the powering and signals. The repair idea is to check the voltages first, and then check the signals.
Measurement method for Avalon A921 hash board powering unit

AvalonMiner A921 hash board power supply unit voltage measurement. This course video explains the specific test points and corresponding voltage values of each power supply unit voltage on the Avalon A921 hash board. For example, the input voltage of the LDO is about 3.5V, the domain voltage is 0.4V, and so on.
Avalon A1066 hash board repair tutorial

AvalonMiner A1066 hash board repair tutorial. The maintenance of the hash board is mainly to repair its powerings and signals, which means that when we repair the A1066 hash board, we first need to check whether its several powerings are normal, and then check whether its 4 signals can be transmitted normally. Avalon A1066 hash board repair tutorial will take you to learn more in detail.
Measurement method for Avalon A1066 hash board powering unit

As mentioned in the theoretical basis, the main powering input voltage of the A1066 hash board is 12V, the LDO output voltage is 1.8V and 0.75V, the domain voltage is 0.3V, and so on. So are the specific test points for these voltages during maintenance? The voltage measurement of the Avalon A1066 hash board powering unit will demonstrate its main voltage test points.
Avalon A1047 hash board repair tutorial

Avalon A1047 hash board maintenance tutorial course mainly explains the its repair from the aspects of the structure of the A1047 hash board, the powering unit and its signal transmission direction. The hash board has a total of 120 ASIC chips, and its core powering includes domain voltage, LDO1.8V and 0.75V, and has 4 signals.
Measurement method for Avalon A1047 hash board powering unit

This video course mainly demonstrates the voltage measurement of Avalon A1047 hash board powering unit, and the corresponding voltage value of each voltages. It mainly includes, the LDO input voltage, the domain voltage, the voltage of the boost circuit and follower circuit. When the A1047 hash board fails, it is very important to troubleshoot the abnormal voltage.

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