Power Supply; To Adjust The Power Supply - HP 54520 Series Service Manual

Power Supply
This section provides an adjustment procedure for the power supply.
To adjust the power supply
The power supply should rarely need adjustment. Perform this procedure only if the supply
has been checked and is known to be incorrect.
Equipment Required
Equipment Critical Specifications Recommended
Model/Part
Digital Voltmeter Accuracy +0.05% HP 34407A
Procedure
1 Disconnect the instrument power cord and remove the cover.
If necessary, refer to the procedures in chapter 6, "Replacing Assemblies."
2 Refer to figure for testpoint and adjustment locations.
Ground +5.2V Power supply
test point test point adjustment
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Power Supply Adjustment Location
3 Connect the common lead of the voltmeter to COM test point.
4 Connect the positive lead of the voltmeter to +5.20 V test point.
5 Connect the oscilloscope power cord and set power switch to ON.
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