Agilent Technologies 8590 Series Service Manual page 561

−10 V REF DETECTOR −10 V Reference
Detector
Displays the output of the −10 V reference from the A7
D
ESCRIPTION
analog interface assembly as horizontal line at the
bottom graticule.
Refer to
information.
R S
ELATED OFTKEYS
2v REF DETECTOR 2 V Reference Detector
D Displays the output of the 2 V reference produced on
ESCRIPTION
the A16 processor/video assembly as a horizontal line at
the top graticule. If the line is at the top graticule, the
main ADC is adjusted correctly.
This routine uses the 2 V reference at the input MUX
on the A16 assembly. Refer to Foldout 6-2, IF/Control
Overall Block Diagram, for the location of the input
MUX.
Note that during the preset routine, the analog-ground
and 2 V reference are used to calibrate the main ADC.
The analog ground and 2 V reference at the input MUX
are used during calibration. If either signal is out of
range, the ADC-GND FAIL or ADC-2V FAIL error
message is displayed.
R S
ELATED OFTKEYS
ALC TEST Automatic Level Control TEST
D Note that this function is available for analyzers
ESCRIPTION
equipped with Option 010, 50Ω Output Tracking
Generator, and Option 011, 75Ω Output Tracking
Generator, only.
ALC TEST
level control in the tracking generator.
Refer to the modular offset and gain adjustment
procedures in
ALC TEST
Chapter 13
Chapter 4 for additional troubleshooting
+10 V REF DETECTOR
CAL AMPTD
breaks the leveling loop for the automatic
Chapter 2 for information on the use of
.
Softkey Descriptions
Softkey Descriptions
561