Keysight N9038A MXE Service Guide 183
RF Preselector Section
RF Preselector Section Troubleshooting
16.
Tune the spectrum analyzer to a start frequency of 1 MHz and a stop
frequency of 6 GHz.
17.
Tune the instrument to a frequency of 1 GHz with a span of 0 Hz by
pressing
FREQ
,
1 GHz
, and
SPAN
,
Zero Span
.
18.
Verify that the signal level on the spectrum analyzer is at
−
20 dBm (±2 dB),
as shown in
, allowing for any additional test cable loss.
If the signal level is incorrect the most likely cause of the problem is the
A21 RF Preselector Input assembly itself.
Figure 5-10
A21 RF Preselector Input Assembly - Radiated Band Pre-Filter
Pre-Filter Shape Verification - Radiated Band
19.
Placing one of the active traces on the spectrum analyzer into its Max
Hold function.
20.
Slowly vary the frequency of the signal generator between 1 MHz and 6
GHz to draw out the shape of the radiated band pre-filter on the spectrum
analyzer display, as shown in
21.
Verify that the filter shape on the spectrum analyzer display is similar to
that shown in
.
If the filter shape is incorrect the most likely cause of the problem is the
A21 RF Preselector Input assembly itself.
Содержание N9038A
Страница 4: ...4 ...
Страница 16: ...16 Contents ...
Страница 66: ...66 Keysight N9038A MXE Service Guide Boot Up and Initialization Potential Problems During Boot Process ...
Страница 130: ...130 Keysight N9038A MXE Service Guide Instrument Messages Condition Messages ...
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 ...
Страница 354: ...354 Keysight N9038A MXE Service Guide Analog Digital IF A3 Digital I F Troubleshooting ...
Страница 406: ...406 Keysight N9038A MXE Service Guide Block Diagrams Block Diagrams Block Diagrams ...
Страница 407: ...Keysight N9038A MXE Service Guide 407 Block Diagrams Block Diagrams N9038A RF Input Option 503 508 526 Block Diagram ...
Страница 408: ...408 Keysight N9038A MXE Service Guide Block Diagrams Block Diagrams N9038A RF Input Option 544 Block Diagram ...
Страница 428: ...Keysight N9038A MXE Service Guide 447 Block Diagrams Block Diagrams LO Synthesizer Block Diagram ...
Страница 429: ...448 Keysight N9038A MXE Service Guide Block Diagrams Block Diagrams Reference Block Diagram ...
Страница 430: ...Keysight N9038A MXE Service Guide 449 Block Diagrams Block Diagrams MXE Computer Block Diagram ...
Страница 431: ...450 Keysight N9038A MXE Service Guide Block Diagrams Block Diagrams ...
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 ...
Страница 627: ...646 Keysight N9038A MXE Service Guide Post Repair Procedures Post Repair Procedures ...
Страница 639: ...658 Keysight N9038A MXE Service Guide Post Repair Procedures Post Repair Procedures ...
Страница 643: ...662 Keysight N9038A MXE Service Guide Instrument Software Software Updates ...
Страница 741: ...760 Keysight N9038A MXE Service Guide Tests Intermittent Unsteady Drifting Disturbances ...