Agilent Technologies XX3625 Service Manual page 131

Chapter 5: Troubleshooting
To troubleshoot the acquisition system
Acquisition Trouble Isolation (4 of 4)
Return the Known Good Attenuator to Original Channel
If you swap attenuators to verify that the failure follows the attenuator assembly, return the known good
attenuator to its original channel so that the attenuator contact counter is consistent with the specific
attenuator.