Switching Power Supply Startup Circuit Problem?
Brand: HANNY Model: FX-101
No schematic or tech support available. The problem is the initial startup. How does HANNY design the startup for their switching supplies? Is it a mini linear supply? A starting resistor? A starting cap? Self resonance? What do I look for? Checked power resistors, all in spec. What can I look for? Supply is only five months old, likely not dried caps. Ideas?