Wannien 101v0 Power Supply Schematic Free |verified|

Budget power supplies are highly prone to capacitor degradation due to heat and continuous ripple current stress. Look for capacitors on the secondary side that exhibit bulging tops, leaking electrolyte at the base, or elevated Equivalent Series Resistance (ESR). Even if a capacitor looks physically perfect, it can dry out internally and cause the power supply to "tic-tic-tic" or fail under load. Blown Primary MOSFET or Integrated PWM IC

To keep the output voltage steady under changing loads, the supply monitors its own output. wannien 101v0 power supply schematic free

Set your DMM back to Continuity mode. Place the black probe on a secondary ground pad (usually the metal shield of an output connector or a dedicated ground pin). Touch the red probe to the cathode (the side with the stripe) of each secondary rectifier diode. Budget power supplies are highly prone to capacitor