Keysight N5171B EXG Service Manual page 102

Troubleshooting
Troubleshooting No, Low, or Unleveled Output Power (N5173B/83B)
6. Using the spectrum analyzer, measure the lowest power level at the
7. If any of the parts are replaced, go to
Keysight X-Series Signal Generators Service Guide
attenuator output.
— If the lowest power level is less than the specified power shown in
the maximum output power section of the N5173B or N5183B Data
Sheets:
a. Replace the A7 Micro Deck.
b. Go to Chapter 4, "Post-Repair Procedures and Operational
Performance
— If the lowest power level is greater than the specified power level
shown in the maximum output power section of the N5173B or
N5183B Data Sheets:
a. Reconnect the cable to the attenuator.
b. Disconnect the cable from the RF output connector.
c. Check the loss through the cable.
d. If the cable loss is >1dB, replace the cable.
e. If the cable is good, reconnect the cable to the RF output
connector.
f. Measure the loss through the RF output connector.
g. If the RF connector loss is >2dB, replace the connector.
and Operational Performance
Verification.".
Chapter 4, "Post-Repair Procedures
Verification.".
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