When repairing the Antminer L3+ hash board, knowing the ASIC chips, signal directions, and test points with the largest number on the hash board can improve maintenance efficiency and reduce loss of revenue. More L3+ hash board maintenance knowledge: https://www.zeusbtc.com/manuals/Antminer-l3-hash-board-repair-guide-bob-version.asp #AntminerL3+ #hashboard #ASICchips #test

When the voltage in the DC-DC circuit of the Antminer L3+ hash board is abnormal, first check whether the PIC voltage value is consistent with the DC-DC output voltage through the tool print information; if not, you need to replace the low capacitance around the LM27402SQ. Details: https://www.zeusbtc.com/manuals/Antminer-L3-plus-Hash-Board-Repair-Guide.asp#AntminerL3+ #hashboard #DC-DC #circuit

When using tweezers and a portable desoldering gun to remove the heat sink on the Antminer S9 hash board, the temperature must be controlled at around 450 degrees Celsius. More step details:https://www.zeusbtc.com/articles/asic-miner-troubleshooting/1394-how-to-correctly-disassemble-and-assemble-the-chip-on-the-s9-hash-board#desoldering #heatsink #AntminerS9 #hashboard