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Materials of this sales brochure: The major story S9 Troubleshooting of numerous mistakes in the Procedure board, exactly how to use the examination box for precise positioning. Thermostatic soldering Irons(350-400C ), suggestion for solder chip resistor capacitors as well as other tiny patches. Tools for repairing the S11 miner are vital.

After upkeep, the hash board need to be checked two times and also confirmed as Okay prior to it can pass! Pay interest to the operation method when changing the chip.

4. Identify the maintenance station things and also the corresponding examination software criteria and also test fixture. 5. Examine whether the tools as well as fixtures can function usually. 1. 1 S9 is made up of 21 voltage domain names connected in series. There are 3 BM1387 chips in each voltage domain name, and there are 63 BM1387 contribute the entire board.

5 There are independent small heat sinks on the front and back of each chip. The tiny warmth sink on the front side is the SMT spot.

Note: In the upkeep procedure, in click here for more order to minimize the damage of the heat of the air gun to the PCB and also the chip when replacing the components of the electrical board or the chip, it is essential to starting point the little heat sink near the malfunctioning component and also the PCB board.

The PCB board has examination factors anyhow, during the upkeep of the production, the front test factors can be used when the warmth sink is not affixed to the front of the PCB; the completed product repair work (after-sales upkeep), because of the front as well as rear of the PCB covered with warm sinks, it is required to find the fault via the test points of the PCB.