I was trying to repair a switch mode power supply for a Philips WACS700, and I suspected one of the zenar diodes was faulty. I desoldered it checked it with my MM and got distracted and the part went flying away. I lost it. Needless to say, I didn't get the details before it was lost. I found the schematics but there are no circuit diagrams for the supply. I am at a loss at what to do to replace the component. Can someone help me?
L2, is I suspect is the faulty inductor that is making the low frequency sound when the unit is on. The LC meter will allow me to find the most accurate replacement. There are no obvious schematics for this supply.
Is the supply fully working? - a noisey inductor shouldn't prevent it working. I would imagine a SMPSU would require any inductor replacing with the exact same type, as it's usually a VERY critical component (as the entire supply is designed around it).