Look for bipolar transistors (BJT) or MOSFETs combined with resistors in the base/gate circuit to trigger the load. 3. Troubleshooting and Repair Guidelines (101V0)
He wiped a smudge of grease from his loupe and leaned in. The warranty seal had been shattered years ago, leaving a jagged scar across the chassis. Inside, the architecture was a nightmare of vertical daughterboards and hand-wound inductors. It didn't follow the logic of modern switching supplies. It looked organic, like a city built by someone who hated right angles.
Replace the shorted MOSFET or rectifier diodes, check surrounding gate-drive resistors, and install a fresh fuse of the exact same rating. Symptom 2: Completely Dead Board (Fuse is NOT Blown)
Repair technicians have encountered several recurring faults on the Wannien 101V0. The lack of a schematic makes each of these failures more difficult to diagnose, but the community has collectively built a body of knowledge. wannien 101v0 power supply schematic exclusive
By providing this comprehensive guide to the Wannier 101v0 power supply schematic, we hope to empower designers and engineers to develop more efficient and reliable systems.
On the secondary side, the diodes are a common point of failure. In a Russian repair log, both diodes were found short‑circuit, with a measured resistance of about 1 Ω across them. When these diodes fail, the power supply either shuts down completely or produces no output voltage.
: Includes four discrete transistor switch circuits (labeled out1 through out4 ). These are independently toggled by trigger circuits to manage specific power rails. Look for bipolar transistors (BJT) or MOSFETs combined
: PWM Controller Integrated Circuit (IC), High-Power Switching MOSFET, and the Main Step-Down High-Frequency Transformer.
[AC Input] ──> [EMI Filter] ──> [Bridge Rectifier] ──> [Switching/PWM] ──> [Transformer] ──> [Output Rectification] ──> [DC Out] ^ │ └─────────── [Optocoupler Feedback] ───┘ Stage 1: AC Input and EMI Filtering (Hot Side)
Locate the target transistor path shown in the Scribd Circuit Diagram. Measure the trigger voltage at the base/gate terminal. If the signal registers but the transistor output remains frozen, replace that active switching transistor component. If you require further repair guidance, let me know: The warranty seal had been shattered years ago,
Q: What is the output voltage of the Wannier 101v0 power supply? A: The output voltage of the Wannier 101v0 power supply is adjustable, with a typical output voltage of 12VDC.
To make your repair process safer and more effective, incorporate these professional bench practices: