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How to solve the screen refresh failure of the Antminer L3+?
The following kernel log faults are mainly for Antminer L3+; other Antminer models are for reference only.Refresh screen failure means that the log keeps showing the same content repeatedly.
RI test method: adjust the fluke 15B+ multimeter to the DC gear, and place the red and black test pens on the heat sink and RI of the same domain respectively. Compare the measured voltage results with the resistance values of other chips in the same domain. If you find a BM1485 ASIC chip with abnormal chip voltage or fault, it is recommended to re-solder or replace it.
Troubleshooting method:
When there is a screen refresh failure in the backstage kernel log, we need to focus on checking whether the voltages of the RI signal and CO signal of the chip are normal, generally starting from the first domain.RI test method: adjust the fluke 15B+ multimeter to the DC gear, and place the red and black test pens on the heat sink and RI of the same domain respectively. Compare the measured voltage results with the resistance values of other chips in the same domain. If you find a BM1485 ASIC chip with abnormal chip voltage or fault, it is recommended to re-solder or replace it.
CO test method: quickly find the faulty chip through the short-circuit test point "CO."
We can ground "CO" to prevent signal transmission so that the damaged chip can be found quickly.
We can ground "CO" to prevent signal transmission so that the damaged chip can be found quickly.
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