How does the domain voltage of the T21 BHB68701 hash board work?

Master a critical diagnostic skill with this focused guide on measuring domain voltage on the Antminer T21 BHB68701 hash board. This tutorial delves the practical workings of the boards series-connected 12 voltage domains. We clearly explain how the 16V input from the PSU travels through the domains and to correctly identify the positive and negative poles for each one. Follow our detailed, step-by-step demonstration using a multimeter to accurately measure the 1.2V across a single domain and the total 16V input voltage. This hands-on skill is fundamental for diagnosing common power delivery failures, such as open circuits or shorted components, and is a prerequisite for our advanced fault-finding and repair lessons.

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