272
Keysight NFA Series Noise Figure Analyzers Service Guide
L.O. Synthesizer/Reference Troubleshooting
A14 L.O. Synthesizer Troubleshooting
A14 L.O. Synthesizer Troubleshooting
Turn on the analyzer and wait for the instrument to complete the boot up
process. There are (6) processes to perform, which will verify the L.O.
Synthesizer Assembly is functioning properly:
— Press
MODE/MEAS
,
Spectrum Analyzer
,
OK
,
FREQ
,
50 MHz
,
Zero Span
.
LED's DS1-DS3 located near the top of the board next to J10 should all be
off. See LED location in
below.
— Press
System
,
Alignments
,
Align Now, Align Now All
. If the alignment
functions correctly with no error messages on the analyzer display, most of
the board is working properly.
— Measure 4800 MHz Input frequency (from A16 Reference Assembly)
— Measure 4800 MHz Input Power (from A16 Reference Assembly)
— Measure L.O. Output Power.
— Measure L.O. Output Frequency.
These items can be checked with a functioning spectrum analyzer using cables
and connectors that function well up to 10 GHz.
Figure 8-1
A14 L.O. Synthesizer Assembly
Содержание N8973B
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Страница 44: ...44 Keysight NFA Series Noise Figure Analyzers Service Guide Overview How to Return Your Instrument for Service ...
Страница 132: ...132 Keysight NFA Series Noise Figure Analyzers Service Guide Instrument Messages Condition Messages ...
Страница 228: ...228 Keysight NFA Series Noise Figure Analyzers Service Guide RF Section Troubleshooting N8976B Troubleshooting ...
Страница 268: ...268 Keysight NFA Series Noise Figure Analyzers Service Guide Analog Digital IF Troubleshooting 25 MHz BW IF Section ...
Страница 322: ...322 Keysight NFA Series Noise Figure Analyzers Service Guide Block Diagrams Block Diagrams Block Diagrams ...
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Страница 350: ...350 Keysight NFA Series Noise Figure Analyzers Service Guide Service and Diagnostics Menus Front Panel Key Test ...
Страница 470: ...470 Keysight NFA Series Noise Figure Analyzers Service Guide Assembly Replacement Procedures Front Frame Assembly ...