Hello,
I tried to replace the on/off LED to a green one with a similar voltage rating in my Korad power supply ( two-year-old). I managed to replace the LED, but in the process the display LEDs no longer works properly when in operation. I hypothesize that I may heated up some component too much as I tried to use solder wick with my soldering iron.... I was struggling with that ( was not soaking)... never again.
the issue is all left panel LEDs (4 of 5) except for the "lock" LED don't appear to work when the unit is powered on. If I remove the display module, I can individually test all LEDs from my multimeter, and they appear to work fine In diode mode. also, I tried continuity checking for the traces near the one LED that was replaced. I can't seem to find an issue. no obvious burning Marks anywhere
I was wondering if anybody had any ideas about what I should do, what I should test, or what could be wrong to cause this issue. my skill set for this type of thing is beginner.
thanks