: 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
: Uses a bridge rectifier to convert AC to high-voltage DC, which is smoothed by a large electrolytic "bulk" capacitor. wannien 101v0 power supply schematic repack
: If the monitor has power but no display, the inverter stage may be failing. Check for scorched PCB areas or shorted coils in the inverter section. : On boards designed for LCD monitors, a
: 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. Check for scorched PCB areas or shorted coils
: Regularly check connectors for corrosion to ensure a stable voltage input to the mainboard. Where to Find Schematic Resources
Provide the symptoms you're seeing, and I can suggest specific multimeter test points to check. Power Supply Troubleshooting Guide | PDF - Scribd