Repair Guide of Whatsminer Power Supply

[Shenzhen Leed Electronic Co. Ltd]

It features a reliable liquid cooling system and has an effective air cooling system to assist maintain stable low temperatures. Buy whatsminer m50s from Shenzhen Leed Electronic Co. Ltd which is committed to offering our clients worldwide hassle-free sourcing services.

Below is the repair guide for the Whatsminer Power Supply: 

 

1. Update the firmware for the power unlock

When powered on alone, there is no voltage output. Upgrade the control board's specific firmware while the control board is connected to the power source. The power source will output an average voltage after restarting the test.

 

2. Unusual voltage

First, remove the screws holding the power supply, then remove the circuit board and fan. Check the output terminal's positive and negative poles for short circuits with a multimeter. Check for a voltage input if there isn't a short circuit. The two pins of the bulk capacitor are often used to measure the input voltage.

 

Check to see if the VCC circuit's diode triode is normal. It ought to be replaced if it breaks. However, the VCC voltage continues to beat after the power-on measurement, and the VCC circuit is inoperable. Please drain the capacitor after powering off because VCC is rectified by various diodes and outputs multiple sets of voltages. Therefore, it is required to test the functionality of each rectifier diode.

 

The output voltage is irregular even though the fan is functioning normally.

Use the multimeter's black test lead to connect to the ground, and the red test lead to measure and compare the same pin locations on each of the four driver chips. The same chip pin often has the same value. The IC driver circuit could become short-circuited if the pin position and the ground value are significantly different. If the chip's surface shows no signs of burning, the MOS tube it drives might be short-circuited.

 

Lower voltage output

Verify that the fan cord is correctly plugged in if the fan is not functioning. Or check to see if the fan is running too quickly. The fan is whirling too quickly because it is so hot. There is no output since the power source is locked to protect itself.

The temperature sensing wires on the four heat sinks should be checked for looseness in the fan driving circuit. The miner is at fault if there is a fan or temperature issue. Verify the pertinent line. If the heatsink's temperature control is working properly, there might be a problem with the chip program. 

 

If one purchases a MicroBT Whatsminer M30S++ 112T, be sure to verify the precise hash power provided because the company frequently upgrades the specifications of its products. Refunds are also not available.

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