8201
Third party software and hardware support forums. / Re: Microstepper controller faiure
« on: June 11, 2010, 07:54:03 AM »
Hi Aidan,
Not much help but I have a sneaky feeling that someone has been to that power supply before you. From the circuit diagram those diodes do not appear to belong there. To melt the solder they must have got extremely hot and I am surprised that the 8Amp fuse did not blow first. I would suggest that one of the 32Volt, 5Volt or 12Volt circuits is drawing too much current but which is difficult to speculate. Try a closer examination, possibly using an eye glass, to see if you can spot any of the other components which may have overheated. Oh and check that the 8Amp fuse is actually 8Amp.
Tweakie.
Not much help but I have a sneaky feeling that someone has been to that power supply before you. From the circuit diagram those diodes do not appear to belong there. To melt the solder they must have got extremely hot and I am surprised that the 8Amp fuse did not blow first. I would suggest that one of the 32Volt, 5Volt or 12Volt circuits is drawing too much current but which is difficult to speculate. Try a closer examination, possibly using an eye glass, to see if you can spot any of the other components which may have overheated. Oh and check that the 8Amp fuse is actually 8Amp.
Tweakie.