Wannien 101v0 Power Supply Schematic -
The information in this article has been gathered by cross-referencing information from various sources, including its use in different devices like the ASUS EXA1202YH charger, the Sony PlayStation 2 Slim, and the LYONN DESIRE-500 UPS.
At the heart of the schematic is an integrated circuit (IC) voltage regulator. This critical component actively smooths and drops the input down to a steady, regulated 5V DC output.
If you are facing a dead or malfunctioning board, your approach should map cleanly to the schematic paths: 1. Inspect the Input Rail Set your multimeter to DC voltage. wannien 101v0 power supply schematic
The Wannien 101v0 design relies on an efficient, well-protected regulator topology. Rather than dealing with raw high-voltage AC directly on the secondary distribution stage, the board typically relies on a robust primary step-down block followed by localized regulators.
The (often identified as model E88653 ) is a versatile power supply board frequently used in monitors and moderate-power electronic devices. A schematic for this board is essential for troubleshooting common hardware failures, such as power-on issues or display signal loss. Key Technical Specifications The information in this article has been gathered
| Component | What to look for | Likely schematic family | | :--- | :--- | :--- | | | 8-pin DIP: UC3842, UC3843, OB2269 | Standard UC3842 Flyback | | Dual Op-Amp | 8-pin: LM358, LM393 (for voltage/current limit) | Battery charger or LED PSU | | Main Switcher | MOSFET: 4N60, 7N65, 8N60 | 150W-300W flyback | | Output Diode | TO-220: MBR20100, SBL2040 (Schottky) | Low voltage, high current |
The power supply was completely dead, with no output voltage. When connected to a 220V mains supply, the primary side of the board was receiving the correct high voltage after initial repairs, but the secondary side remained at 0V, indicating a fault in the primary-side switching circuit or the secondary-side regulation components . If you are facing a dead or malfunctioning
: Utilizes high-frequency pulses to scale down high potential voltages efficiently without massive physical transformers.
The main transformer and the secondary Schottky diodes generate significant heat. Over time, the solder connections holding these heavy components can crack, causing intermittent operation. 3. Step-by-Step Diagnostic and Repair Protocol
If you can provide:
