Antminer L3+ hash board repair guide overview and download

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:

Antminer L3 + single hash board uses a total of 72 hash chips, the model is "BM1485", and the signal direction is sequentially transmitted from U1 to U72.

Signal direction: "CLK / CO / RST / BO" is transmitted from U1 to U72, "RI" is transmitted from U72 to U1 in reverse

The hash board uses 5 test points to check and maintain:

They are: CLK / CO / RI / BO / RST

For a description of test points, see:

Click to view: Fix Description of Antminer Hashboard test points

In this version, we provide more detailed circuit schematics:

Antminer L3+ hash board repair guide download address:

Click to download: L3 + Repair guide manual [CHS]

The maintenance principle of L3 + Hashboard is roughly the same as S9. You can refer to the S9 maintenance video tutorial:

Click to watch: Antminer S9 Hashboard repair video tutorial

Related maintenance tools:

 Antminer L3+ control board

Medium temperature solder paste

Official thermoset gel - 220g

Click to see more miner maintenance tools