Keysight M9195A PXIe User manual

Keysight M9195A PXIe
Digital Stimulus/Response with
PPMU: 250 MHz, 16 channel
For the Startup Guide, software, and other important docu-
mentation, see the M9195A Software and Product Informa-
tion CD
Service Guide

ii
Notices
© Keysight Technologies, Inc. 2015
No part of this manual may be repro-
duced in any form or by any means
(including electronic storage and retrieval
or translation into a foreign language)
without prior agreement and written con-
sent from Keysight Technologies, Inc. as
governed by United States and interna-
tional copyright laws.
Manual Part Number
M9195-90008
Edition
First Edition, November 2015
Published in U.S.A.
900 S. Taft Avenue,
Loveland, CO. 80537
Trademarks
PICMG®, Compact PCI®, and
AdvancedTCA®are registered trade-
marks of the PCI Industrial Computer
Manufacturers Group.
PCI-SIG®, PCI Express®, and PCIe®are
registered trademarks of PCI-SIG
Sales and Technical Support
To contact Keysight for sales and techni-
cal support, refer to the support links on
the following Keysight websites:
www.keysight.com/find/M9195A (prod-
uct-specific information and support,
software and documentation updates)
www.keysight.com/find/assist (world-
wide contact information for repair and
service)
Declaration of Conformity
Declarations of Conformity for this prod-
uct and for other Keysight products may
be downloaded from the Web. Go to
www.keysight.com/go/conformity and
click on “Declarations of Conformity.” You
can then search by product number to
find the latest Declaration of Conformity.
Technology Licenses
The hardware and/or software described
in this document are furnished under a
license and may be used or copied only in
accordance with the terms of such
license.
Warranty
THE MATERIAL CONTAINED IN THIS
DOCUMENT IS PROVIDED “AS IS,” AND
IS SUBJECT TO BEING CHANGED,
WITHOUT NOTICE, IN FUTURE EDI-
TIONS. FURTHER, TO THE MAXIMUM
EXTENT PERMITTED BY APPLICABLE
LAW, KEYSIGHT DISCLAIMS ALL WAR-
RANTIES, EITHER EXPRESS OR IMPLIED,
WITH REGARD TO THIS MANUAL AND
ANY INFORMATION CONTAINED
HEREIN, INCLUDING BUT NOT LIMITED
TO THE IMPLIED WARRANTIES OF MER-
CHANTABILITY AND FITNESS FOR A
PARTICULAR PURPOSE. KEYSIGHT
SHALL NOT BE LIABLE FOR ERRORS OR
FOR INCIDENTAL OR CONSEQUENTIAL
DAMAGES IN CONNECTION WITH THE
FURNISHING, USE, OR PERFORMANCE
OF THIS DOCUMENT OR OF ANY INFOR-
MATION CONTAINED HEREIN. SHOULD
KEYSIGHT AND THE USER HAVE A SEP-
ARATE WRITTEN AGREEMENT WITH
WARRANTY TERMS COVERING THE
MATERIAL IN THIS DOCUMENT THAT
CONFLICT WITH THESE TERMS, THE
WARRANTY TERMS IN THE SEPARATE
AGREEMENT SHALL CONTROL.
Keysight Technologies does not warrant
third-party system-level (combination of
chassis, controllers, modules, etc.) per-
formance, safety, or regulatory compli-
ance unless specifically stated.
DFARS/Restricted Rights
Notices
If software is for use in the performance
of a U.S. Government prime contract or
subcontract, Software is delivered and
licensed as “Commercial computer soft-
ware” as defined in DFAR 252.227-7014
(June 1995), or as a “commercial item” as
defined in FAR 2.101(a) or as “Restricted
computer software” as defined in FAR
52.227-19 (June 1987) or any equivalent
agency regulation or contract clause.
Use, duplication or disclosure of Software
is subject to Keysight Technologies’ stan-
dard commercial license terms, and non-
DOD Departments and Agencies of the
U.S. Government will receive no greater
than Restricted Rights as defined in FAR
52.227-19(c)(1-2) (June 1987). U.S. Gov-
ernment users will receive no greater
than Limited Rights as defined in FAR
52.227-14 (June 1987) or DFAR 252.227-
7015 (b)(2) (November 1995), as applica-
ble in any technical data.

iii

iv

Keysight M9195A PXIe Digital Stimulus/Response Service Guide v
Contents
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Structure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Related Documentation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
High-Level Diagnostic Tools, Processes and References . . . . . . . . . . . . . . . . . 3
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Fault Messages. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Troubleshooting Check List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Status LED Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Check Software Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Chassis Cooling Checks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Troubleshooting with the Soft Front Panel . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Check Module Status LED . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Check Module Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Run Automatic Corrections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Run Self-Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Using Keysight N7876A Calibration and Adjustment Software . . . . . . . . . . . . 13
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Calibration Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
TME Software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Performance Verification and Adjustment Process . . . . . . . . . . . . . . . . . . . 14
Getting Started with N7876A Performance Verification and Adjustment
Software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Performance Verification Setup and Equipment Requirements . . . . . . . . . 15
Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Test Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Equipment Required . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Adjustment Setup Equipment Requirement . . . . . . . . . . . . . . . . . . . . . . . . 17
Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Test Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Equipment Required . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Replaceable Parts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Using the Hardware Service Wizard . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
M9195A Module Core Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Replacing the Defective Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Returning a Module for Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
ESD Precautions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

vi Keysight M9195A PXIe Digital Stimulus/Response Service Guide
Startu
p
Guide Data Sheet
Product
description
Technical
specifications
,9,&2M and ,9,& driver
programmer’s reference
/DE9,(: driver
programmer’s
reference
8QSDFN product
9HULfy shipment
,QVWDOO software
,Qstall & connect
hardware
9HULfy operation
SFP help system
Soft Front Panel (SFP) user interface
9LVXDO Studio ,9, Driver help system
/DE9,(: /DE9,(: Driver help system
Press F1 with
focus on Method
&Rntext Help
with OLQN to
detailed 9,
information
7KHRry of operation
2SHUDWLRQDOFKHFN
)LHOGFDOLEUDWLRQ
%ORFNGLDJUDP
&RQILJXUDWLRQ
6HOI test
7URXEOHVKRRWLQJ
7URXEOHVKRRWLQJ
6DPSOHSURJUDPV
5972-3341 29 July 2011
6DPSOHSURJUDPV
Modular Products User Documentation Map
Agilent’s modular product documentation is designed and delivered to provide you information when and where you need it.
Startup
Guide
Product ZHE site
Product
&D
A
ccess to all '2&80(17$7,21 noted EHORZ

Keysight M9195A PXIe Digital Stimulus/Response Service Guide 1
Introduction
Introduction
This document is intended for use by Keysight Service Centers and by M9195A
customers.
Self-maintaining customers using the Keysight Test Management Environment
(TME) with the N7876A application for M9195A calibration must refer to the help
systems accompanying that software (see “Related Documentation”).
“Using Keysight N7876A Calibration and Adjustment Software” on page 13
presents an overview of M9195A adjustments and performance verification tests
supported by N7876A.
Structure
“High-Level Diagnostic Tools, Processes and References” on page 3 provides
high-level tools, processes, and references to help diagnose problems with a
M9195A.
“Using Keysight N7876A Calibration and Adjustment Software” on page 13
introduces calibration and adjustment support available from Keysight.
“Service” on page 18 details removal and replacement procedures.
Related Documentation
In addition to this Service Guide, the related documentation for the M9195A
includes:
-Startup Guide: Provides instructions to unpack, inspect, install (software and
hardware), perform instrument connections, verify operability, and
troubleshoot problems.
-User Guide: Presents theory of operation, usage, configuration, and service
information for the M9195A.
-Data Sheet: Provides a detailed product introduction and full product
specifications.
-Specifications Guide: Provides a history of specifications (if they change) by
serial number for the M9195A module.
-Soft Front Panel (SFP) Help system: Background and how-to-use information
on the Soft Front Panel.
-Security Guide: Gives declassification instructions for the M9195A module.
-IVI Driver Reference (help system): Provides documentation of the IVI-COM
and IVI-C driver API functions, and information to help you start using the
drivers in your application development environment.

2 Keysight M9195A PXIe Digital Stimulus/Response Service Guide
Introduction
If you ran the product software installer, you can access the related
documentation (startup guide, data sheet, SFP help, and LabVIEW help) from
Start > Programs > Keysight > MDSR. For IVI driver help, see Start > Programs > Keysight
IVI Drivers > KtMDSR. LabVIEW help installs through the LabVIEW driver.
All the product documentation noted above is provided on the product CD. To
find the latest versions of the documentation, go to the product web site:
www.Keysight.com/find/M9195A (go to Document Library > Manuals).
For additional information on the Keysight Test Management Environment (TME)
and the M9195A-specific calibration application, N7876A, go to:
http://cal.software.keysight.com/

Keysight M9195A PXIe Digital Stimulus/Response Service Guide 3
High-Level Diagnostic Tools, Processes and References
High-Level Diagnostic Tools, Processes and References
This section provides high-level tools, processes, and references to help
diagnose problems with an M9195A DSR module.
Specifications
The Specification Guide for the M9195A is included on the Software and Product
Information CD. Please check the Keysight website at
www.Keysight.com/find/M9195A for the latest updates to this information.
Fault Messages
Some Self Test error messages on page 11 may show up during normal
operation. They appear near the top of the Soft Front Panel.
Troubleshooting Check List
If you are unable to communicate with the M9195A, make the following checks:
1What does the front panel Status LED look like?
Refer to “Status LED Summary” on page 5.
–Off indicates a power supply, or other basic hardware problem.
–Solid Red indicates power or temperature problems.
Disconnect all connectors at the M9195A front panel. Then cycle power
to the chassis before checking if the solid red LED continues.
See “Chassis Cooling Checks” on page 6.
–Solid Green indicates that power and temperature are OK and that PCI
enumeration is complete.
If the Status LED does not go solid green within a minute of the computer
booting Windows, power down the chassis and repeat the process with
the M9195A installed in another slot.
Before attempting to diagnose the Keysight M9195A, make sure
you have followed the necessary startup instructions in the
M9195A Startup Guide. This is available on the Software and
Product Information CD, or the product website:
www.Keysight.com/find/M9195A (Document Library > Manuals)
Be sure to take ESD precautions (see page 23).
To avoid damage when handling a module, do not touch exposed
connector pins.

4 Keysight M9195A PXIe Digital Stimulus/Response Service Guide
High-Level Diagnostic Tools, Processes and References
–Solid Blue indicates that conditions for Solid Green are met and that the
IVI driver for the M9195A is now initialized.
If the status LED does not go from solid green to solid blue after the Soft
Front Panel comes up and connects with the M9195A, there may be an
LED problem. If the Soft Front Panel does not come up, see “Check
Software Installation” on page 5.
If the LED goes solid blue and the Soft Front Panel comes up, check that
the drivers are loaded correctly by flashing the blue LED from the SFP.
See “Check Module Status LED” on page 6.
If an incorrect LED condition repeats and continues, go to “Returning a
Module for Service” on page 22.
2Does the M9195A appear correctly on Keysight Connection Expert?
–Bring up Connection Expert and click on the “PXIe/AXIe Chassis” tab then
check to see if the M9195A in question appears in the correct slot.
If the module is not visible, try shutting down the system, cycling power,
and re-starting.
If the M9195A still does not show up in Connection Expert then power
down the chassis and repeat the process with the M9195A installed in
another slot.
If the M9195A does not show up in Connection Expert, but the Soft Front
Panel (SFP) connects to it, then “Check Software Installation” and, if
necessary, re-install all required software in the order describe in the
M9195A Startup Guide.
If the Module continues to not show up in Connection Expert, go to
“Returning a Module for Service” on page 22.
3Does the M9195A (SFP) connect?
If the Connection Expert as well as the SFP does not connect, go through
Step 2 above.
–If the SFP fails to connect to the M9195A, then “Check Software
Installation” on page 5 and, if that is OK, try repeating the process with the
M9195A installed in another slot.
Re-install all required software in the order describe in the M9195A Startup
Guide.
–If the SFP connects, go to “Troubleshooting with the Soft Front Panel” on
page 6.

Keysight M9195A PXIe Digital Stimulus/Response Service Guide 5
High-Level Diagnostic Tools, Processes and References
Status LED Summary
First, check the M9195A front panel Status LED. When power is first applied, the
LED starts in the Off state and then changes to green after a few moments when
PCI enumeration takes place. In general, when the Status LED is solid green the
module is working correctly. The following table lists the states (colors) of the
Status LED.
Check Software Installation
Verify that the following installations are present. For software check
Start > Control Panel> Programs and Features>
-Keysight IO Libraries Suite. You must be using version 16.3 update 2 or later.
-Keysight Digital Stimulus/Response Driver
-Module (KtMDsr IVI Driver 1.0.10) and chassis drivers (Keysight M901x PCIe
Chassis)
-System Interface Card, cable and PC PXIe card connections
-If no modules are visible in the SFP “Connect to Instrument” dialog, start
Keysight Connection Expert, by selecting:
Start > Programs > Keysight IO Libraries Suite > Keysight Connection Expert
If the module is still not visible, power down, move the module to another slot
and restart.
Status LED
color
Description
Off Power not applied or a failure in the power supplies or fundamental hardware
Solid Green Power okay, temperature okay, successful PCI enumeration.
Solid Blue Conditions for Green are met AND driver initialized (not closed). Failure to close
the driver may result in the LED remaining blue. Typically, the LED will go from
green to blue when the IVI driver is initialized. It will go from blue back to green
when the driver is closed (or SFP is closed).
Blinking
Blue
Driver or SFP “Identify” operation was activated. If the driver terminates with the
LED blinking blue, it will continue to blink blue.
Solid Red Error condition (power or over temperature, etc., not okay)
The order in which software is installed (see the M9195A Startup
Guide) is critical. If the M9195A module in question has been
working in the present chassis, but there has been a change in the
software environment, it may be necessary to re-install the
software.

6 Keysight M9195A PXIe Digital Stimulus/Response Service Guide
High-Level Diagnostic Tools, Processes and References
Chassis Cooling Checks
Power down the chassis and check the following to ensure optimal cooling
performance.
–Any empty module slot in the chassis should be fitted with a slot blocker
(from kit Y1212A) and EMC filer panel (from kit Y1213A).
–If a PCIe Cable Interface module is used in place of a controller, the open
area to the left of the interface module should be filled with the filler panel
and bracket (from kit Y1214A).
–All lower and side vents should remain unobstructed.
–Set the chassis fan speed to HIGH. The fan switch is on the rear panel of
the M9018A chassis.
Troubleshooting with the Soft Front Panel
This subsection details four diagnostic checks available through the M9195A
Front Panel:
–“Check Module Status LED”, see below
–“Check Module Temperature” on page 7
–“Run Automatic Corrections” on page 8
–“Run Self-Test” on page 10
Check Module Status LED
Once the SFP connects to the M9195A, select Instrument and then Identity
tabs. Click on Identify Indicator On.
If the blue LED does not pulse on and off, run Self Test (see page 10). If the LED
still fails to pulse and there are no other problems, go to “Returning a Module for
Service” on page 22.
If you wish, turn off the Identify Indicator, once you have checked it.

Keysight M9195A PXIe Digital Stimulus/Response Service Guide 7
High-Level Diagnostic Tools, Processes and References
Check Module Temperature
After the SFP connects to the M9195A, select Instrument and then Temperature
tabs. Choose Single or Continuous and the temperature will appear:
If the FPGA temperature is over 85oC, then go to “Chassis Cooling Checks” on
page 6.
If the FPGA temperature remains over 85oC after doing the cooling checks, then
go to “Run Self-Test” on page 10.
If temperature remains over the acceptable range, go to “Returning a Module for
Service” on page 22.
In the event of a serious over-temperature or voltage fault, Self
Test will not run.
Failure to operate the chassis with the required cooling described
in “Chassis Cooling Checks” on page 6 may result in the
“Overtemperature in FPGA” error message and the appearance
that the module has failed. Before returning a module to Keysight
due to an overtemperature condition, any chassis cooling
deficiencies must be corrected and the module temperature
should be re-confirmed.

8 Keysight M9195A PXIe Digital Stimulus/Response Service Guide
High-Level Diagnostic Tools, Processes and References
Run Automatic Corrections
Automatic Corrections runs an algorithm which automatically calculates
corrections for the module. Keysight recommends running Automatic
Corrections regularly, and whenever ambient temperature shift by over 5oC.
Automatic Corrections takes several minutes to complete. At the end of the
Automatic Corrections procedure, the M9195A is left in its power-on, reset state.
1Turn on the system and allow it to warm-up for a minimum of 60 minutes.
2Remove all cables from the front of the M9195A.
3Start the Soft Front Panel and connect to the M9195A module.
4Select the Instruments and then Automatic Corrections tabs.
5The dialog box shows if an Automatic Corrections is needed (True) or not
(False). It shows True if the current module temperature has deviated more
than 5oC from the temperature at which the current corrections were made.
You can also select the averaging mode (average of 64 readings or 50 Hz or
60 Hz line cycles).
You must remove all cables from the M9195A when executing an
Automatic Corrections. Failure to remove all cables will result in
inaccurate adjustment and could result in damage to the M9195A
and anything attached to the cables (such as a DUT).
Automatic Corrections resets the module, aborts any open
sessions, and may make your device unavailable for 60 seconds or
more. Do not close the Soft Front Panel (SFP) software and do not
disable the device during this period. You can monitor the activity
of the device during this self-calibration period by viewing the
SFP and Status LED on the module’s Front Panel.

Keysight M9195A PXIe Digital Stimulus/Response Service Guide 9
High-Level Diagnostic Tools, Processes and References
Averaging Mode has three possible settings:
6Click Execute Automatic Corrections button to initiate the corrections
process. Follow all on-screen instructions.
7When Automatic Corrections is complete, the M9195A is left in its power-on,
reset state.
Mode Description
Average 64 64 measurements are made and averaged together on each channel.
This improves noise level on the measurements.
Windows 50 Hz Measurements are averaged over a 50 Hz power-line cycle. All
channels are measured simultaneously over this period. In addition
to the noise reduction provided by Average64, this also rejects line
noise present on the signal lines, resulting in improved
measurement quality.
This setting should be used in environments with 50 Hz line
frequency that require maximum conversion resolution. The
minimum measurements time is 20 ms.
This setting is the best choice for environments with 400 Hz line
frequency that require maximum conversion resolution; however, the
line rejection will not be as effective.
Windows 60 Hz Measurements are averaged over a 60 Hz power-line cycle. All
channels are measured simultaneously over this period. In addition
to the noise reduction provided by Average64, this also rejects line
noise present on the signal lines, resulting in improved
measurement quality.
This setting should be used in environments with a 60 Hz line
frequency that require maximum conversion resolution. The
minimum measurements time is 17 ms.
All input cables must be removed from the module before
executing Automatic Corrections.

10 Keysight M9195A PXIe Digital Stimulus/Response Service Guide
High-Level Diagnostic Tools, Processes and References
Error messages appear in a box at the top of the SFP display.
They are of the form:
AutomaticCorrections: Gain constant out-of-range. Verify
field wiring removed from channel 0.
There are over 50 different varieties of these messages, all with the same
remedy: Remove any field wiring from the channels. If all cables are removed from
the front panel and there is still a failure, the unit needs to be returned to the
factory for further evaluation and repairs (see “Returning a Module for Service”
on page 22).
Run Self-Test
Start the SFP self tests by selecting: Utilities > Self Test > Run Self Test. A self test
box will appear and give the start time. The test should complete in around 3
minutes.
You must remove all cables from the M9195A before running Self
Test. Failure to remove all cables could result in damage to the
M9195A and anything attached to the cables (such as a DUT).
In the event of a serious over-temperature or voltage fault, Self
Test will not run.
Running Self Test resets the module, aborts any open sessions,
and makes your device unavailable for around three minutes. Do
not close the Soft Front Panel (SFP) software and do not disable
the device during this period.

Keysight M9195A PXIe Digital Stimulus/Response Service Guide 11
High-Level Diagnostic Tools, Processes and References
Error messages appear in a box at the top of the SFP.
–"Calibration Fixture must not be connected but it is."
Check for no connections. If problem persists, see “Returning a Module
for Service” on page 22.
–"DDR3 memory test failed”
Reset system and re-try test. If problem persists, see “Returning a
Module for Service” on page 22.
–"Fault condition: “Overtemperture in FPGA”
Power down the system and make sure steps in “Chassis Cooling Checks”
on page 6 are in place. Bring the system up, and use the “Check Module
Temperature” on page 7 procedure with Continuous selected to monitor
FPGA temperature. If it goes over 85oC, return the board for evaluation
and repair. If the FPGA temperature stays below 85oC, re-run Self Test,
and if the Fault condition above persists, see “Returning a Module for
Service” on page 22.
–"Fault condition: Undervoltage in FPGA due to excessive
current draw"
Power down chassis and disconnect all cables from M9195A. If problem
persists on power up, power down again and re-seat the M9195A in the
PXIe card cage. If problem persists, see “Returning a Module for Service”
on page 22.
–"FPGA flash memory test failed
Reset system and re-try test. If problem persists, see “Returning a
Module for Service” on page 22.
–"Keysight IO Version <Current version> is earlier than
minimum required"
See “Check Software Installation” on page 5.
The Self Test process includes the Automatic Corrections
algorithm described on page 8. However the adjustments
calculated during this Automatic Corrections process are not
saved, so running Self Test does not eliminate the need for
Automatic Corrections.
For details on error messages that come up during the Automatic
Corrections process, see page 10.

12 Keysight M9195A PXIe Digital Stimulus/Response Service Guide
High-Level Diagnostic Tools, Processes and References
–"Ltc2261 test failed"
See “Chassis Cooling Checks” on page 6. If problem persists, see
“Returning a Module for Service” on page 22.
–"Ltc3880 test failed
See “Chassis Cooling Checks” on page 6. If problem persists, see
“Returning a Module for Service” on page 22.
–"Max1031 test failed"
See “Chassis Cooling Checks” on page 6. If problem persists, see
“Returning a Module for Service” on page 22.
–"Max621 test failed"
See “Chassis Cooling Checks” on page 6. If problem persists, see
“Returning a Module for Service” on page 22.
–"<ModelNumber> Carrier FPGA Version (<Current rev>) is
earlier than minimum required,"
Return any prototype M9195A modules, see “Returning a Module for
Service” on page 22.
–"Reference Clock PLL has lost lock; selected source is
<DStarA / Front Panel / PXI 100>"
If the problem is with the PXIe_DStarA trigger, reassign reference clock
and re-try. If OK on another source, check the source of the PXIe_DStarA
trigger.
If the problem is with the Front Panel source, disconnect it and check it
with an oscilloscope.
If PXI 100 is indicated, check diagnostics available for the chassis.

Keysight M9195A PXIe Digital Stimulus/Response Service Guide 13
Using Keysight N7876A Calibration and Adjustment Software
Using Keysight N7876A Calibration and Adjustment Software
Introduction
Calibration Requirements
Keysight recommends calibration of the M9195A at least every year. The module
may be sent to a Keysight service center or calibrated by self-maintaining
customers using a Keysight Test Management Environment (TME) application.
TME Software
Applicable TME software consists of the Test Management Environment and the
N7876A PXI Digital Calibration IO application. Together they provide the highest
level of confidence that the M9195A under test conforms to published,
factory-set specifications (see for details on the M9195A Specifications Guide
see “Related Documentation” on page 1).
The N7876A Performance Verification and Adjustment functions support both
verifying proper operation and calibration of the M9195A. If the M9195A is
unable to pass the all the performance tests after adjustments, you can take the
steps described in “High-Level Diagnostic Tools, Processes and References” on
page 3 to determine if the module should be exchanged.
The N7876A requires a renewable license per test station. For details on starting
to use TME software, see “Getting Started with N7876A Performance Verification
and Adjustment Software” on page 15.
For details on the procedures and equipment requirements see:
–“Performance Verification Setup and Equipment Requirements” on
page 15
–“Adjustment Setup Equipment Requirements” on page 17
The standard Keysight calibration procedure for the M9195A
requires that the Performance Verification Tests be followed by the
Adjustment which is in turn followed by a second set of
Performance Verification Tests.

14 Keysight M9195A PXIe Digital Stimulus/Response Service Guide
Using Keysight N7876A Calibration and Adjustment Software
Performance Verification and Adjustment Process
The diagram in Figure 1 summarizes the calibration process.
Figure 1 Performance Verification and Adjustment Process
Figure 1 uses a flow diagram to present the general operation of the N7876A
software as it is applied to the M9195A. The module runs performance
verification tests for test records. It then goes through the adjustment procedure.
If it fails the adjustment procedure, return it for service. Modules passing
Performance Verification should almost always pass the adjustment procedure.
Running the second set of performance verification tests ensures that the
M9195A is still operating within its specifications.
This “verify-adjust-verify” sequence ensures operation within specifications and
provides useful records on the instrument.
N7876
Performance Verification
Testing for Records
N7876
Adjustment
Pass? No
Yes
N7876
Performance Verification
Testing
Pass?
Properly Functioning
M9195
Troubleshoot Module
Return Module for Service
No
Yes