SAM-III Construction Manual
See last page for document and copyright information, File: SAM-III Magnetometer Construction.doc, Page 12
Reference
ground, 0 v
+5 v (U1)
+5 v (U3)
+5 v (U4)
+3 v
+5 v (U2)
–5 v (U5)
+12 v
0 v
Ground
+12 v dc Output
GND
+12 Vdc Input
DC Power Input
–5 V
+5 V
If all voltages are within the specified ranges, the power supply components are working properly.
Remove the dc power before continuing!
If the voltages or load current are not within the specified ranges, check for shorts, solder bridges and
orientation of polarity sensitive components (electrolytic capacitors, diodes, and voltage regulator ICs).
Do not continue until you have fixed the problem.