T17 Maintenance Instruction Antminer-APW7-Manual Avalonminer-1047-Manual Antminer-S11-Hash-board-Repair-Guide Avalonminer-11-series-Manual-CHN A1-Manual Antminer-T9-Hash-board-Repair-Guide S9 Maintenance Instruction S19 Maintenance Instruction S19 scan code connection method Antminer-D3-Hash-board-Repair-Guide Antminer-S9k-Hash-board-Repair-Guide