Before Returning An Instrument To A Customer; Operational Check - Agilent Technologies FieldFox N9923AN Service Manual

Tests and Adjustments

Before Returning an Instrument to a Customer

Before Returning an Instrument to a Customer
When finished servicing an N9923AN analyzer, perform the following before returning the
unit to the customer:
• Set the Display Colors to Indoors and the display Brightness to 80% via
Service (7) > Display.
• Perform an Operational Check as described in the following section.
• Connect and disconnect the external battery charger while the N9923AN is operating
and confirm that the power cord icon is displayed appropriately at the top of the display.
• Charge the battery to 80% or higher.

Operational Check

1. Preset the instrument, press Preset (.) > Preset.
2. Leave the PORT 1 and Port 2 connectors open.
3. Press: Scale/Amptd > Ref Pos > 2 > Enter
4. Press: Scale > 1 > Enter
5. The trace should be between -1 and +1 dB. (S11 is displayed.)
6. Press: Measure
7. If the S22 soft key exists, press it to display S22.
a. The trace should be between -1 and +1 dB.
If the operational check fails, allow the instrument to warm up for 15 minutes
NOTE
and try again.
3-6
RF Vector Network Analyzer
N9923AN
Service Guide N9923-90005