Find out which voltage the fuse is protecting.
Then desolder board for board all those voltages. Measure with the ohmmeter for short. Once a board shows 0 Ohm then that board has the short somewhere. Further measure out all tantalum capacitors for short as well as other capacitors. It's a bit time consuming but there is no other way to find the short. Good luck
Csaba
Sent from Csaba's iPhone
Sent from Csaba's iPhone
On 23 Jul 2017, at 05:41, jw_dewdney@... [yamahacs80] <yamahacs80@yahoogroups.com> wrote:
My CS50 started blowing fuses. A preliminary check revealed nothing obvious in the power supply - is there a recommended routine for this? Maybe first checking for shorts in the board feeds?