If you are getting a switching power supply troubleshooting error code on your PC, you can check out these troubleshooting methods.

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    As a rule, only some components of switching regulator power supplies fail. Most often, stuttering occurs in the switching transistors themselves. The transistors short out, causing a large current to flow through these transformers and blow the input section fuse.

    How do you test a power supply switch?

    Remove virtually all existing settings from previous clinical trials and studies by selecting “Default Setting”.Click “Analyze” and additionally select a powerful application. Select the output waveform.Connect your probes. Connect the current probe to the output of a separate power supply. See fig. 3.Click Autotune and Apply.

    Troubleshooting switching power supply
    1. Blown Fuse
    In either case, a blown power supply fuse indicates a problem with the internal circuitry. The current assignment is executed under high voltage and restarted. Voltage fluctuations or power surges in the system’s mains often cause a small increase in current, which can cause a fuse to blow. Users should probably check for a fault, existing circuit, or damage to the rectifier diode, high voltage filter electrolytic capacitor, and inverting tube of the input power switch. Usually, when the power supply fuse has blown without any indication of other problems, users should check the board parts to make sure that it has not blown and that there is no electrolyte leakage. If there is simply no such condition, users should use a multimeter to determine if there is a problem or short procedure. Users are not allowed to start using the device even after removing and replacing the damaged part, because there is noDefective HT components can damage a newly replaced part. When recovering from a blown fuse, users actually test all the high voltage components in the circuit before starting specific devices.

    2. No DC output or hazardous voltage output.
    If the mains fuse is still good, but there was no DC output when loaded to all new levels, this may be caused by an open circuit, short beep, overvoltage or overcurrent, failure. Auxiliary Power Supply, Oscillation Circuit Failure, Power Supply Overload, Rectifier Diode Failure in High Frequency Smoothing Rectification, or Leakage Current of All Smoothing Capacitors. If the output voltage remains zero after checking the secondary components with a multimeter and repairing the fault or short-circuit overload of the high-frequency rectifier diodes, a problem in the power control circuit can be confirmed. If there is a voltage output in certain places, then the integratedMy circuit is working correctly and hence there is a problem of RF rectification combined with circuit smoothing. High-frequency filtering circuits mainly use a rectifier diode and a low voltage selection capacitor to obtain DC power. If the rectifier diode fails, the program will not be able to supply voltage. In addition, the electrical losses of the bypass capacitor cause the power supply to become unstable. Damaged components can be found by checking the damaged parts with a good, reliable multimeter.

    3. Misuse of abilities.
    Misuse of abilities is a common malfunction. It is often seen to meet traditional needs or those who work long hours. This is caused by an increase in old components, unstable tubes, switches, or during cooling. Users should also check the condition of the regulated diode, rectifier, capacitor, suppression of high voltage diodes, etc.

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  • Repair andswitching power supply
    Repair of switching power supply can be performed in two stages:
    1. When stamina declines, users can solve problems by visually probing, checking, asking questions, and then measuring.

  • Visual inspection: open the case of the power supply part to see if the fuse is blown. Check out the inside of the streaming inventory. When board components are used up, users should check the surrounding mechanisms and corresponding circuit components.
  • Smell. Check if any part of the power supply smells burnt or if the component is fried.
  • Questions. Ask about the process of obtaining effects and check for surgical intervention.
  • Measurement: Use a multimeter to measure the voltage at both ends of a normally high voltage capacitor before turning it on. If the switching power supply does not fluctuate or the failure is caused by tube replacement, in most cases the current at both ends of the high voltage capacitor is not released. Since the specific stress is very high Whoa, be careful! When measuring the forward and reverse resistance at the ends between the AC lines and the state of charge of the capacitor, the value of the opposing force must not be underestimated, otherwise the inside of the power supply will be above the tipping point. In addition, the capacitor usually has to be released and charged electromechanically. The user must then measure the earth resistance on the different output sides after disconnecting the load in each case. Usually the indicator that the multimeter uses to turn off power or capacitance. As a result, the indicator should show the resistance of the trap.
  • 2. Power on test
    Check if the fuse blows normally and if there is smoke after power on. If necessary, users should turn off the power to perform routine maintenance. If you measure, there is a 300V end voltage product at both ends, which is most often associated with a high voltage smoothing capacitor. If this is probably normal, the user should checkRemove the rectifier diode, capacitor, etc.
    Measure if there is secondary voltage on the coil studs of the high frequency transformer. If the fault is normal, users should check whether the switching tube is damaged, whether the switching tube fluctuates, whether the protection circuit works, etc. If they find problems in the above aspects, users should check the rectifier diodes, remove the capacitors, and three-way adjustment of the tube on the sides end result.

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