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Whatsminer M20S Hashboard Repair Guide

20/4/2020

Whatsminer M20S Hashboard Repair Guide

This version contains the basic circuit schematic diagram and chip signal direction and voltage introduction

We are currently publishing in Chinese, the English version will be released soon

Basic overview:

Whatsminer M20S single hash board uses a total of 105 hash chips, the model is "KF1920", and the signal direction is sequentially transmitted from U1 to U105.

Signal direction: "CLK / RXD / RST/CTSI", transfer from U1 to U105, "TXD" transfer from U105 to U1

信号流.jpg

The whole board has a total of 35 voltage domains, each voltage domain contains 3 chips, a total of 105 chips

电压域.jpg

Hach board provides 5 test points for easy inspection and maintenance

They are: "CLK / TXD / CTSI / RXD / RXT"

测试点.jpg

By measuring the voltage and resistance of the test point, you can find the corresponding bad chip

click to download:Whatsminer M20S Hashboard Repair Guide

Related maintenance tools:

ZHIPU electric screwdriver set with two batteries and various screw heads

PICkit4 In-Circuit Debugger Programmer

Medium temperature solder paste

ANLIXIN-862D High Quality Desoldering Station Combination Tool

Click to see more miner maintenance tools

NOTICE
This is an original piece. Reproduction in whole or part without written permission is prohibited.
About miner repair issues, please contact repair manager email:
Repair@zeusbtc.com

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Cooperate@zeusbtc.com

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