Antminer APW8 - TEST11 与 TEST7 负极万用表量测 VCC 12-13 V: TEST11 and TEST7 negative multimeters measure VCC 12-13 V; 2.41 Diagram for S15 control panel V1.2 and APW8 power PIC port connection test, label 1 is the dedicated card test firmware, 2 is the DC voltage debugging high-low conversion button, 3 is the PIC communication port, 4 is the control panel socket, 5 is 12 V power supply; note that yellow indicates positive and black indicates negative. Note: After the general power supply defective products are repaired, the power supply only needs to be short connected with the PIC communication J15 port EN-GND pin, and if there is voltage output 16 V, it is normal, and the following single test for the control panel is not requried (when the PIC single chip is damaged, or when the firmware is abnormal, it needs to test a small panel before re-burning), and the corresponding mining machine test can be directly installed.; 2.5 Simple judgment and maintenance of common faults of mine power supply; 1 The fan does not run, there is no 12 V output

APW8 Power Supply Maintenance Guide
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TEST11 与 TEST7 负极万用表量测 VCC 12-13V: TEST11 and TEST7 negative
multimeters measure VCC 12-13V
2.41 Diagram for S15 control panel V1.2 and APW8 power PIC port connection test, label 1 is the
dedicated card test firmware, 2 is the DC voltage debugging high-low conversion button, 3 is the
PIC communication port, 4 is the control panel socket, 5 is 12V power supply; note that yellow
indicates positive and black indicates negative. Note: After the general power supply defective
products are repaired, the power supply only needs to be short connected with the PIC
communication J15 port EN-GND pin, and if there is voltage output 16V, it is normal, and the
following single test for the control panel is not requried (when the PIC single chip is damaged, or
when the firmware is abnormal, it needs to test a small panel before re-burning), and the
corresponding mining machine test can be directly installed.
2.5 Simple judgment and maintenance of common faults of mine power supply
No
.
Fault symptom
Cause
Solution
1
The fan does not run,
there is no 12V output
The power supply on the
AC side is abnormal
1. Check if the AC input line of the power supply is normal and the plugs at
both ends are not loose.
2. Check if the grid is powered and the voltage is normal.
2
The fan runs normally,
there is no 12V output
1. Low grid voltage
2. Power protection
1. Use a multimeter to confirm that the current voltage is above 205V, so
that the power can be turned on.
2. Detect whether the power supply has an output short circuit or overload.
This situation will cause the power supply to enter the lock protection state.
It needs to be re-powered after the fault is removed to recover.
3
After the power supply
stops output for a few
seconds, it resumes
normal operation. After
a few minutes of
continuous operation, it
The power supply has
entered the over
temperature protection
1. Check if the fan is running normally
2. Check if the cooling air duct of the power supply is blocked.
3. Check if the power supply has accumulated excessive dust inside for a
long time.
4. Check if the power used by the power supply or the ambient temperature
exceeds the value of the power supply limit curve.