|
The first caps I'd check are the small ones located near the switcher chip. They're like 2.2, 4.7 etc. I usually replace them with a 10. After checking the caps, I'd check the FETs driving the transformer. Next look for any ceramic (fusible) resistors and check them. Lastly just replace the switcher chip. Never had any trouble with the opto-couplers in the feedback loop.
__________________
|