Replacement steps for Avalon PSU PFC high-voltage small board

Avalon power supply PFC high-voltage small board is a crucial integrated component in the Avalon PSU3300-03 PLUS power system. It enhances the PSU's efficiency for ensuring the stable operation of miners, which achieves a low power consumption by adjusting the input current waveform. It also reduces electricity costs to improve economic benefits.

If the PFC high-voltage small board is damaged, the miner may exhibit the following phenomena:

1. Increased power consumption: Due to the failure of the PFC circuit, the input current waveform cannot match the voltage waveform, leading to a decrease in the power efficiency, and then further increasing the power consumption of the power system.

2. Equipment overheating: Damage to the PFC circuit reduces power efficiency, converting more electrical energy into heat, which may lead to equipment overheating.

3. Abnormal startup of miners: PFC board failures can cause power instability, potentially leading to the miner failing to start usually or experiencing abnormal power outages and frequent restarts during operation.

Therefore, when we discover a fault in the PFC board of the Avalon power supply, please replace it with a new spare part to quickly restore the miner's normal operation.

The specific replacement steps for the PSU3300-03 PLUS power supply PFC small board are as follows (taking the Avalon A1066 miner as an example):

1. After disconnecting the power to the miner, unplug the outlet fan connector, then remove the protective cover plate above the control board.

2. Unplug the power cord, remove the fixed screws of the conductive copper sheets, and press down on the tab to remove the PSU.

3. Remove the protective shell of the PSU, disconnect the cables, and then remove the integrated power board after removing its fixing screws.

4. After exhausting the large capacitor voltage with a discharge pen, locate the faulty PFC board and add an appropriate amount of flux to its pins.

5. After preheating the automatic solder sucker, place it on the solder joint at the faulty location to melt the solder and suction it clean, carefully removing the PFC module.

6. Check the new PFC high-voltage small board to confirm it is not damaged, align it with the original position, then fix it with a soldering iron and solder wire.

7. After completing the replacement of the PFC board, reassemble the PSU and the miner, then power on the machine to ensure that it can operate stably.

Avalon PSU3300-03 PLUS power supply is highly praised for its high efficiency and stability. The PFC high-voltage small board is an indispensable component in improving its efficiency and stability. Timely replacement of the faulty one can achieve efficient mining, helping miners obtain stable income.