The HP/Agilent/Keysight power supplies have service manuals and, more importantly, are designed to be serviced. Most consumer electronics do not and are not. M

The HP/Agilent/Keysight power supplies have service manuals and, more importantly, are designed to be serviced. Most consumer electronics do not and are not. My success rate on random consumer electronics is pretty good, firmware problems notwithstanding, but then it turns out something was glued or even ultrasonically welded or requires an alignment jig or was just designed by a madman and is impossible to reassemble. I've even been in the situation where something that I was on the design team for is busted and I know exactly what the fix is because I know that product but the assembly is one-way and so there's nothing I can do. (In this case the product required an IP rating and low cost, so ultrasonic welding it was.) It's very frustrating.