Whatsminer M20 series repair course

In May 2020, Whatsminer M20 was officially released. This product continues the M1, M3, and M10 in terms of cost performance and operational stability. However, no matter how s miners are, there are times when there is a failure. It may be a hash board failure, a chip failure, or a power failure. So how do you properly troubleshoot and resolve failures? This course mainly focuses on the principle and repair of the M20 series hash board, the judgment and replacement of the ASIC chip, the CLK clock signal flow, and the RST reset signal flow, 1.8V-LDO circuit test, etc., for everyone to troubleshoot and ensure the normal operation of M20 series miners.