I have an oscilloscope with a bad switching power supply. I have it out of the scope and set up with the correct dummy loads for testing. I see no visible burnt components or capacitor leakage. The switching transistor gets very hot, i would say about 80C (180F). It should output:
+12, +12, -12, -5.2, +3.5, +5.2
I measure:
+12, +12, -2.6, -2.6, +3.5, +5.2
Old electrolytic caps? Bad regulator? It is a double sided board and quite compact so i am having a lot of trouble following traces. I think i am going to start desoldering and testing all the components individually.
+12, +12, -12, -5.2, +3.5, +5.2
I measure:
+12, +12, -2.6, -2.6, +3.5, +5.2
Old electrolytic caps? Bad regulator? It is a double sided board and quite compact so i am having a lot of trouble following traces. I think i am going to start desoldering and testing all the components individually.
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