I have a power supply with multiple outputs. 12v, 5v, -5v. When I power up the unit. I can measure the output voltages but its dropping very fast, from 12v drops to 0, from 5v drops to 0. Anybody knows the possible cause? I already changed the filter caps but still same.. Thanks in advance!
Hi amayilsamy, Thanks for your reply. I still not doing the load test. its actually dropping even without load.
When I turn on the p/supply. U can get the output (12v, -5v, 5v) but its dropping fast. till no reading on your multi-tester. Then turn on again, but same situation. get output for a while then dropped.