On Sat, 27 Aug 2016 19:53:54 +0200, Ralf Mardorf wrote: >More or less all the repairing I had to do myself or in some cases >was done by a friend, within the last years, was replacing capacitors >in new switched-mode power supplies, that were running for around 1 to >3 years. They were simply undersized by voltage, they were neither bad >manufactured, nor did they dry out, they bloat and short. This >wittingly predetermined breaking point is a real plague. For example >my Behringer Eurorack UB2442FX-Pro suffered from this issue. It's not >just some no-name power supply, it's a Behringer designed power >supply. ISO 9000 is fraud against customers and criminal against the >environment, those products that failed usually advertised their >quality management. 30 years old conventional power supplies with good >voltage size, but aged leaking capacitors, that don't provide the >original capacity anymore usually don't cause any issues. We usually >don't notice that the capacitors for a lot of gear are already broken. >Leaking isn't good, it's better to replace those capacitors, but >leaking capacitors not that often cause noticeable issues, especially >not the two kinds of voltage stabilizing capacitors, either smoothing >capacitors (Glättungskondensatoren) and bulk capacitors, decoupling >capacitors or what ever you name (Stützkondensatoren) capacitors for >stabilisation. Yes, if they aren't good anymore, they could cause >disastrous effects, but I suspect they are broken for a long time >without causing a noticeable effect and if the effect becomes >noticeable, than I suspect that it's more or less always noticeable >and not just by random. > >YMMV! >Ralf PS: Not to mention that the more important bulk capacitors aren't electrolytic ;). _______________________________________________ Linux-audio-user mailing list Linux-audio-user@xxxxxxxxxxxxxxxxxxxx http://lists.linuxaudio.org/listinfo/linux-audio-user
