Are you troubleshooting a with this board, such as no output or a "clicking" sound? WANNIEN PCB 101V0 USED Fast Shipping FEDEX / DHL
Often an 8-pin IC (like the LD75xx series). If this fails, the board will appear completely dead. wannien 101v0 power supply schematic verified
Always discharge the large primary filter capacitor (usually 400V/450V) before handling the board to avoid high-voltage shock. Visual Inspection: Are you troubleshooting a with this board, such
Since a graphical image cannot be embedded here, below is a of the verified power stage. Advanced users can redraw this into their favorite EDA software (KiCad, Eagle). wannien 101v0 power supply schematic verified
This area drives the display backlight. If you have "power" (indicated by a light) but "no display," the inverter transformer or its driving transistors are likely suspects.