Mike S wrote: > Most switching supplies require a minimum load to operate correctly. If > the output is just open, and you don't see any voltage, it doesn't > necessarily indicate a problem.
No, the unit is dead... I managed to get another one locally, a place called JPG in Chesterfield. Almost identical unit, but this one has a 5 way DIN plug on it and the pin outs for the voltages marked on the case. Checking the new one on no load I get volts, and almost the correct level, but as you say the no load voltage is often a bit different. Just to check, I opened the supplied unit and checked inside. as I suspected there's a soldered in fuse in line with the 3 pin input socket. Volts are OK on one side, and nothing on the other. A check with a continuity checker also confirms that the internal fues, A 2.5A type, is open circuit. From the look of the insides, something was short circuit as there's discolouration round a small, vertically mounted, PCB inside. Dave Ackrill _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.