To Test The Auxiliary Power - HP 1660CS-Series User Manual

Troubleshooting

To test the auxiliary power

To test the auxiliary power
The +5 V auxiliary power is protected by a current overload protection
device. If the current on pins 1 and 39 exceed 0.33 amps, the circuit will
open. When the short is removed, the circuit will reset in approximately 1
minute. There should be +5 V after the 1 minute reset time.
Equipment Required
Equipment
Digital Multimeter
•
Using the multimeter, verify the +5 V on pins 1 and 39 of the probe
cables.
12-22
Critical Specifications
0.1 mV resolution, better
than 0.005% accuracy
Recommended
Model/Part
HP 3478A