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:
Medium temperature solder paste
Click to see more miner maintenance tools
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