HP 70000 series, User Manual

Page: 284 / 447

Figure 5-3.
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MORE ERRORS Softkey
Display-Disruptive Errors
Error conditions of the display instrument that interfere with normal screen displays are called
display-disruptive errors . Display-disruptive error code messages (for example , A3 MEMORY READ )
are displayed on the screen in large block letters .
Note
Do not attempt to restart the system after a display-disruptive error without
cycling power .
Display T ests
Display T ests are the diagnostic and adjustment routines of the display instruments (for
example , HP 70206A system graphics display or HP 70004A color display). F or an explanation
of display test, refer to the installation and verication manual for the HP 70205A graphics
display , HP 70206A system graphics display , or HP 70004A color display .
Analyzer T est
Analyzer T est is a self-test routine of HP 70000 Series modular spectrum analyzer system
which have an HP 70900B local oscillator source congured as a master element. The display
instruments are not tested by the analyzer test function.
If the analyzer passes this test, then the HP 70900B local oscillator source analog circuits , and
the processor , memory , and HP-MSIB circuits of the analyzer , are functioning correctly .
Note
Before running an Analyzer T est for a system containing an HP 70908A
RF section (that is , an HP 71210C microwave spectrum analyzer), rst press
Instrument Preset I-P and allow one complete sweep . Then press 4 MENU 5 ,
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FREQ ,
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SPAN , 100
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MHz ,
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CENTER FREQ , 300
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MHz . This sets the span to 100
MHz and the center frequency to 300 MHz.
A ccess this test by pressing 4 MNU 5 on the HP 70205A graphics display or 4 MISC 5 ,
N NNNNNNNNNNNNN
MORE ,
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SERVICE
on the HP 70206A system graphics display or HP 70004A color display
N
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SERVICE , then
T roubleshooting 5-5