60 Keysight N9038A MXE Service Guide
Boot Up and Initialization
Potential Problems During Boot Process
attenuator steps are available on each of the two input attenuators. Then you
can view the troubleshooting information for the Front End Controller or
deduce from the attenuator steps that fail, which attenuator is faulty.
Assure there is no 50 MHz signal above 0 dBm applied to the instrument input when the
alignment routine is performed. This can cause errors.
Table 2-3
Alignment History Contents
Alignment
Most Probably Cause
Additional Information
PretuneDAC
A14 LO Synthesizer
A16 Reference board
provides 4.8 GHz Calibrator
signal
VCXOTuningCurve
A16 Reference
VCXOLoopBandwidth
A16 Reference
SecondLOTuningCurve
A16 Reference
SecondLOLoopBandwidth
A16 Reference
DitherLevelAlgorithm
A3 Digital IF
AifLCWidePrefilterPassbandTuningAlgorithm
A2 Analog IF
AifLCWidePrefilterPassbandFineTuningAlgorithm
A2 Analog IF
AifLCNarrowPrefilterPassbandTuningAlgorithm
A2 Analog IF
AifLCNarrowPrefilterPassbandFineTuningAlgorithm
A2 Analog IF
AifXtalWidePrefilterPassbandTuningAlgorithm
A2 Analog IF
AifXtalNarrowPrefilterPassbandTuningAlgorithm
A2 Analog IF
AifVariableGainAlgorithm
A2 Analog IF
AifStepGainAlgorithm
A2 Analog IF
Aif140VariableGainAlignmentAlgorithm
A25 Wideband Analog IF
LOPowerAlignmentAlgorithm
A13 Front End
A15 Front End Control
AifVariableAttenuatorAlgorithm
A2 Analog IF
MechanicalAttenuatorAlgorithm
A9 RF Attenuator A
A10 RF Attenuator B
A16 Reference provides 50
MHz Calibrator signal
ElectricalAttenuatorAlgorithm
A13 Front End
A16 Reference provides 50
MHz calibrator
Control signals from A15
Front End Controller
Содержание N9038A
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Страница 216: ...216 Keysight N9038A MXE Service Guide RF Preselector Section RF Preselector Section Troubleshooting ...
Страница 268: ...268 Keysight N9038A MXE Service Guide L O Synthesizer A14 L O Synthesizer Assembly Troubleshooting ...
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Страница 436: ...Keysight N9038A MXE Service Guide 455 Service and Diagnostics Menus Service Menus Figure 16 5 Alignments Menu ...
Страница 500: ...Keysight N9038A MXE Service Guide 519 Replaceable Parts Hardware Figure 17 23 Front Frame Exploded View LED Backlight ...
Страница 504: ...Keysight N9038A MXE Service Guide 523 Replaceable Parts Hardware Figure 17 26 Front Frame Exploded View CCFL Backlight ...
Страница 589: ...608 Keysight N9038A MXE Service Guide Assembly Replacement Procedures Motherboard Assembly Figure 18 57 Bottom Screws ...
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Страница 741: ...760 Keysight N9038A MXE Service Guide Tests Intermittent Unsteady Drifting Disturbances ...