Provide the symptoms you're seeing, and I can suggest specific multimeter test points to check. Power Supply Troubleshooting Guide | PDF - Scribd
Wannien 101V0 Power Supply: Schematic Repack and Comprehensive Repair Guide
When a Wannien 101V0 board fails, technicians typically report a few high-probability causes: 1. The "No Power" Symptom wannien 101v0 power supply schematic repack
This guide provides a "repacked" overview of the schematic to help you navigate its complex circuitry, along with troubleshooting steps to address common failure points. Circuit Overview and Stage Analysis
: Uses a bridge rectifier to convert AC to high-voltage DC, which is smoothed by a large electrolytic "bulk" capacitor. Provide the symptoms you're seeing, and I can
: Start by testing the main input fuse near the terminals with a multimeter. If blown, do not simply replace it; check the bridge rectifier and primary power transistors for shorts first.
: Accepts a standard universal input of 100Vac to 240Vac . This stage includes a fuse (often rated T3.15A 250V ) and filtering components to reduce electrical noise. Circuit Overview and Stage Analysis : Uses a
A "schematic repack" simplifies the original technical drawing into logical functional blocks. The Wannien 101V0 board typically operates as a multi-stage system:
: On boards designed for LCD monitors, a portion of the circuit functions as a CCFL inverter to drive the display backlight. Common Failure Points and Troubleshooting