In Troubleshooting a Switching Power Supply – Part 1, we had replaced U1 and CR12 based on the analog signatures from the Huntron Tracker showing them as bad. On the rescan, the unit (for practical purposes) passed when compared against our known good reference signatures. There were no catastrophic problems indicated that would make us […]
Month: February 2015
Troubleshooting a Switching Power Supply – Part 1
We recently received a switching power supply that failed in the field so we took the opportunity to do some troubleshooting and discuss the process here on CircuitBoardProblems.com! Of course, like any good troubleshooters (and according to the PCB Troubleshooting Flowchart) we gave the power supply a good visual inspection. On the bottom side of […]