The Wannien 101V0 is a small, versatile power supply board designed to convert AC input voltage to stable DC voltages, typically 12V and 5V, required by the monitor’s mainboard and backlight inverter.
The Wannien 101V0 Power Supply Board Go to product viewer dialog for this item.
: 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.
Power enters via an integrated terminal or standard IEC socket. wannien 101v0 power supply schematic repack
Check for shorted junctions across the bridge rectifier diodes. Voltage Fluctuations and Sag Under Heavy Loads
Often caused by a blown main fuse or a shorted switching MOSFET.
+-------------------------------------------------------------+ | [ AC LINE INPUT ] | | F1 (Fuse) ----> L201 (Common Choke) ----> D201 (Rectifier) | | | | [ HIGH VOLTAGE ZONE ] | | C201 (Bulk Filter Capacitor - 450V) | | | | [ REGULATION & SWITCHING ] | | Q201 (Power MOSFET) <---> T201 (Flyback Transformer) | | PWM Controller IC (NCP-series style architecture) | | | | ============= OPTICAL ISOLATION BARRIER ================= | | | | [ LOW VOLTAGE DC OUTPUT STAGE ] | | Schottky Diodes ----> Filter Capacitors ----> CN202 | | Regulated Rails: +12V DC | +5V DC Regulated Rail | +-------------------------------------------------------------+ Key Board Marking Specifications The Wannien 101V0 is a small, versatile power
Field technicians using the 101V0 in custom repacks or alternative ATX conversions often notice a trace terminal labeled or B+/2 Midpoint .
Weaknesses / Missing Items (actionable)
: Search for "Wannien E88653" or "Wan Nien 94V-0" on archival sites like Scribd or JustAnswer . If blown, do not simply replace it; check
Visually check for bulging caps. Even without physical swelling, dried-out electrolyte fluid increases internal ESR and causes the output voltage to collapse under load.
Searches indicate the schematic is available in documents listed under "95656452-c2bd-413d-a9f9-aacc00c1cc34-drvpowersupplyschematic".