Instructions
DAS
9200 Series & TLA 500 Series
Certification Procedures
070-9470-98
Warning
The servicing instructions are for use by qualified
personnel only. To avoid personal injury, do not
perform any servicing unless you are qualified to
do so. Refer to all safety summaries prior to
performing service.
Copyright T ektronix, Inc. All rights reserved. Licensed software products are owned by Tektronix or its suppliers and
are protected by United States copyright laws and international treaty provisions.
Use, duplication, or disclosure by the Government is subject to restrictions as set forth in subparagraph (c)(1)(ii) of the
Rights in T echnical Data and Computer Software clause at DFARS 252.227-7013, or subparagraphs (c)(1) and (2) of the
Commercial Computer Software – Restricted Rights clause at F AR 52.227-19, as applicable.
T ektronix products are covered by U.S. and foreign patents, issued and pending. Information in this publication supercedes
that in all previously published material. Specifications and price change privileges reserved.
Printed in the U.S.A.
T ektronix, Inc., P.O. Box 1000, Wilsonville, OR 97070–1000
TEKTRONIX, TEK, and DAS are registered trademarks of T ektronix, Inc.
Table of Contents
General Safety Summary v. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Service Safety Summary ix. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Preface xi. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Introduction 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Products Certified 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Procedure Overview 3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
General Information and Conventions 5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Equipment Required 5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
T est Conditions 7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Procedure 1: DAS 9219/9220 Mainframes 9. . . . . . . . . . . . . . . . . . . . . .
Time Base Accuracy 9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Procedure 2: DAS 9221 and TLA 510/TLA 520 Mainframes 13. . . . . . .
Time Base Accuracy 13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Procedure 3: 92E9 Expansion Mainframe 17. . . . . . . . . . . . . . . . . . . . . .
Time Delay Accuracy 17. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Procedure 4: 92A16 Acquisition Board and 92A16E Expansion
Board 23. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Time Base Accuracy 23. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Threshold Accuracy 25. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Procedure 5: 92A96/92C96 Acquisition Board 33. . . . . . . . . . . . . . . . . . .
Threshold Accuracy 33. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Procedure 6: 92HS8 Interface Board and Probe Cabinets 39. . . . . . . . .
Calibrator Accuracy: Probe Cabinet 40. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Time Base Accuracy: Probe Cabinet 41. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Time Base Accuracy: Master Interface Board 43. . . . . . . . . . . . . . . . . . . . . . . . . . .
Data Threshold Accuracy: Probe Cabinet 46. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Procedure 7: 92S16/92SX109 Pattern Generator Board 55. . . . . . . . . . .
Pod Clock Maximum Skew 55. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Threshold Accuracy 59. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Procedure 8: 92S32/92SX118 Pattern Generator Board 63. . . . . . . . . . .
Pod Clock Maximum Skew 63. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Appendix A: 92A96 Acquisition Fixture 71. . . . . . . . . . . . . . . . . . . . . . . .
Material Required 71. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Build Procedure 71. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Appendix B: Threshold Fixture 73. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Material Required 73. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Build Procedure 73. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
For Tektronix Use Only
DAS 9200 Series & TLA 500 Series Certification Procedures
i
Table of Contents
List of Figures
Figure 1: Certification Procedure Tasks 4. . . . . . . . . . . . . . . . . . . . . . . .
Figure 2: Controller Board 100 MHz Time Base Clock Test Point
Locations (DAS 9219/9220 Mainframes) 10. . . . . . . . . . . . . . . . . . . .
Figure 3: Controller Board 100 MHz Time Base Clock Test Point
Location (DAS 9221/TLA Mainframes) 14. . . . . . . . . . . . . . . . . . . . .
Figure 4: DAS 92E9 Expansion Slave Board Test Point Locations 19. .
Figure 5: 92A16 Test Point Locations (back of board) 24. . . . . . . . . . . .
Figure 6: Data and Clock Threshold Test Point Locations 34. . . . . . . . .
Figure 7: 92HS8 Memory Board Test Point Locations
(back of board) 42. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 8: 92HS8 Probe Cabinet Data Threshold Accuracy
Equipment Setup 47. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 9: 92S16 Test Point Locations 57. . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 10: 92S32 Test Point Locations 65. . . . . . . . . . . . . . . . . . . . . . . . .
Figure 11: 92A96 Acquisition Fixture Construction 72. . . . . . . . . . . . . .
Figure 12: Threshold Fixture 74. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
For Tektronix Use Only
ii
DAS 9200 Series & TLA 500 Series Certification Procedures
List of Tables
Table of Contents
Table 1: Products Certified 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Table 2: Products Not Certified 3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Table 3: Required Test Equipment 6. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Table 4: Pod Clock Output Skew (Not Edge Positioned),
Steps 6 and 7 66. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Table 5: Pod Clock Output Skew (Edge Positioned),
Steps 14 and 15 67. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
For Tektronix Use Only
DAS 9200 Series & TLA 500 Series Certification Procedures
iii
Table of Contents
For Tektronix Use Only
iv
DAS 9200 Series & TLA 500 Series Certification Procedures
General Safety Summary
Review the following safety precautions to avoid injury and prevent damage to
this product or any products connected to it.
Only qualified personnel should perform service procedures.
Injury Precautions
Use Proper Power Cord
Ground the Product
Do Not Operate Without
Covers
Use Proper Fuse
Do Not Operate in
Wet/Damp Conditions
Do Not Operate in an
Explosive Atmosphere
Avoid Exposed Circuitry
To avoid fire hazard, use only the power cord specified for this product.
This product is grounded through the grounding conductor of the power cord. To
avoid electric shock, the grounding conductor must be connected to earth
ground. Before making connections to the input or output terminals of the
product, ensure that the product is properly grounded.
To avoid electric shock or fire hazard, do not operate this product with covers or
panels removed.
To avoid fire hazard, use only the fuse type and rating specified for this product.
To avoid electric shock, do not operate this product in wet or damp conditions.
To avoid injury or fire hazard, do not operate this product in an explosive
atmosphere.
To avoid injury, remove jewelry such as rings, watches, and other metallic
objects. Do not touch exposed connections and components when power is
present.
Product Damage Precautions
Use Proper Power Source
For Tektronix Use Only
DAS 9200 Series & TLA 500 Series Certification Procedures
Do not operate this product from a power source that applies more than the
voltage specified.
v
General Safety Summary
Use Proper Voltage
Setting
Provide Proper Ventilation
Do Not Operate With
Suspected Failures
Before applying power, ensure that the line selector is in the proper position for
the power source being used.
To prevent product overheating, provide proper ventilation.
If you suspect there is damage to this product, have it inspected by qualified
service personnel.
Safety Terms and Symbols
Terms in This Manual
These terms may appear in this manual:
WARNING. Warning statements identify conditions or practices that could result
in injury or loss of life.
CAUTION. Caution statements identify conditions or practices that could result in
damage to this product or other property.
Terms on the Product
Symbols on the Product
vi
These terms may appear on the product:
DANGER indicates an injury hazard immediately accessible as you read the
marking.
WARNING indicates an injury hazard not immediately accessible as you read the
marking.
CAUTION indicates a hazard to property including the product.
The following symbols may appear on the product:
DANGER
High Voltage
Protective Ground
(Earth) T erminal
ATTENTION
Refer to Manual
Double
Insulated
For Tektronix Use Only
DAS 9200 Series & TLA 500 Series Certification Procedures
Certifications and Compliances
General Safety Summary
CSA Certified Power
Cords
Compliances
Overvoltage Category
CSA Certification includes the products and power cords appropriate for use in
the North America power network. All other power cords supplied are approved
for the country of use.
Consult the product specifications for Overvoltage Category and Safety Class.
Overvoltage categories are defined as follows:
CAT III: Distribution level mains, fixed installation
CAT II: Local level mains, appliances, portable equipment
CAT I: Signal level, special equipment or parts of equipment, telecommunica-
tion, electronics
For Tektronix Use Only
DAS 9200 Series & TLA 500 Series Certification Procedures
vii
General Safety Summary
viii
For Tektronix Use Only
DAS 9200 Series & TLA 500 Series Certification Procedures
Service Safety Summary
Only qualified personnel should perform service procedures. Read this Service
Safety Summary and the General Safety Summary before performing any service
procedures.
Do Not Service Alone
Disconnect Power
Use Caution When
Servicing the CRT
Use Care When Servicing
With Power On
Do not perform internal service or adjustments of this product unless another
person capable of rendering first aid and resuscitation is present.
To avoid electric shock, disconnect the main power by means of the power cord
or, if provided, the power switch.
To avoid electric shock or injury, use extreme caution when handling the CRT.
Only qualified personnel familiar with CRT servicing procedures and precautions
should remove or install the CRT.
CRTs retain hazardous voltages for long periods of time after power is turned off.
Before attempting any servicing, discharge the CRT by shorting the anode to
chassis ground. When discharging the CRT, connect the discharge path to ground
and then the anode. Rough handling may cause the CRT to implode. Do not nick
or scratch the glass or subject it to undue pressure when removing or installing it.
When handling the CRT, wear safety goggles and heavy gloves for protection.
Dangerous voltages or currents may exist in this product. Disconnect power,
remove battery (if applicable), and disconnect test leads before removing
protective panels, soldering, or replacing components.
To avoid electric shock, do not touch exposed connections.
X-Radiation
To avoid x-radiation exposure, do not modify or otherwise alter the high-voltage
circuitry or the CRT enclosure. X-ray emissions generated within this product
have been sufficiently shielded.
For Tektronix Use Only
DAS 9200 Series & TLA 500 Series Certification Procedures
ix
Service Safety Summary
For Tektronix Use Only
x
DAS 9200 Series & TLA 500 Series Certification Procedures
Preface
This document describes the procedures required to certify the DAS 9200 Series
and TLA 500 Series logic analyzers and their associated modules.
This document is intended for Tektronix service personnel only. It assumes that
the reader is a trained technician, familiar with DAS 9200 Series and
TLA 500 Series logic analyzers.
For additional information, refer to the following documents:
H The DAS Technician’s Reference Manual 070-5959-XX
H The DAS Verification and Adjustment Procedures Manual 070-5961-XX
H The TLA 510/520 Service Manual 070-8976-XX
H The 92A96XX Service Manual 070-8247-XX
H The 92HS8 User Manual 070-5951-XX
H The DAS 9200 Systems/TLA 500 Systems Functional Verification Procedure
DAS9200-AA
For Tektronix Use Only
DAS 9200 Series & TLA 500 Series Certification Procedures
xi
Preface
xii
For Tektronix Use Only
DAS 9200 Series & TLA 500 Series Certification Procedures
Introduction
The purpose of these certification procedures is to enable the Tektronix Field
Service organization to satisfy customer requests for traceable certification of the
DAS 9200 and TLA 500 systems. (Often, the customer requires equipment
certification to achieve or maintain ISO compliance.)
NOTE. These procedures are not intended for customer availability.
These procedures provide Tektronix Field Service Technicians with a standardized and documented procedure for traceable certification of DAS 9200 and
TLA 500 Systems to national standards. After performing this procedure, the
technician can generate and provide the customer with a Certificate of Traceable
Calibration and, if required, a Certification Test Record. The technician can then
apply appropriate calibration stickers to the mainframe and modules which make
up the system. This provides the customer with documentation and confidence in
the measurement accuracy of their system.
This procedure does not verify the system to published specifications. It should
generally be used in conjunction with the DAS 9200/TLA 500 Functional
Verification Procedure. These Certification Procedures certify the accuracy of the
primary references or adjustments; the Functional Verification Procedure verifies
the functionality of the mainframe, module, and probes. Although not required
for traceable certification, if full verification of published specifications is
specially requested by the customer, refer to the Performance Verification
Procedures in the appropriate DAS 9200/TLA 500 Service Manuals.
This procedure is intended for use by Tektronix Field Service Technicians who
have completed DAS9200 Service Training. Others with less training may need
access to other reference documents, such as mainframe and module user
manuals, for detailed information. (Refer to page xi for a partial list of related
documents.)
Please check the Required Test Equipment table on page 6 to ensure you have
the proper traceable test equipment, fixtures, tools, and materials, before
beginning the procedures.
CAUTION. Check with the customer before disconnecting probes or cables from
the system under test. It is desirable to use the customer’s probes and cables
when called for, but in some cases this may not be possible.
For Tektronix Use Only
DAS 9200 Series & TLA 500 Series Certification Procedures
1
Introduction
Products Certified
Table 1 lists the modules which can be certified, and the order in which they
must be tested. Table 2 lists the modules which have no certifiable references.
These procedures support Tektronix-recommended product configurations only.
The recommended recertification interval for DAS 9200 and TLA 500 products
is one year.
T able 1: Products Certified
Product Parameter Comments
1 DAS 9219/9220
Mainframe
Time Base Accuracy:
100 MHz (Main)
Measured on Controller board
2 DAS 9221/TLA
5XX Mainframe
3 92E9 Expansion
Mainframe
4 92A16/92A16E
board
5 92A96/C96
board
6 92HS8 Master
Interface board
and Probe Cabinets
7 92S16/92SX109
board
8 92S32/92SX118
board
Time Base Accuracy:
100 MHz (Main)
Time Delay Accuracy Measured on Expansion Slave
Threshold Accuracy
Time Base Accuracy (92A16 only):
200 MHz Clock
Threshold Accuracy
Time Base Accuracy:
500 MHz Clock
200 MHz Clock
Threshold Accuracy
Calibrator Accuracy
Pod Clock Outputs
Threshold Accuracy (External
Control Probe Input)
Pod Clock Outputs 92SX118 same as 92S32 without
Measured on Controller board
board
Time base accuracy measured on
Memory board inside Probe
Cabinet.
Threshold Accuracy procedures
consist of checking one setting for
each DAC on one channel only.
92SX109 same as 92S16 without
multiplexer.
multiplexer.
For Tektronix Use Only
2
DAS 9200 Series & TLA 500 Series Certification Procedures
T able 2: Products Not Certified
Product Comments
92A60 Controller board No certifiable references or adjustments
92A60 Memory board I
92A60D Memory board I
92A90 Controller board I
92A90 Memory board I
92A90D Memory board I
92A60/90 Buffer probe I
92HS8E Expansion board I
Acquisition probes I
Pattern Generator probes I
92LAN board I
92LANSE board I
Introduction
Procedure Overview
92C01/2/3 board I
Figure 1 shows the general order of tasks that you will need to perform for
certification.
For Tektronix Use Only
DAS 9200 Series & TLA 500 Series Certification Procedures
3
Introduction
Determine modules
customer wants to certify
Go to appropriate
procedure(s)
Is it OK
with customer to remove/
reconnect probes
from SUT?
Yes
Select procedure
Prepare equipment
for testing
Perform procedure
Gather required test equipment
Use Tektronix-supplied
No
Configure customer’s
mainframe and modules
as described in procedure
probes, if available
Set up test
equipment
Photocopy/print required
Test Records
Allow all mainframes,
modules and equipment
to warm up (20 minutes)
Enter traceable test equipment and
DAS/TLA product models and
serial numbers on appropriate
Certificates and Test Records
Enter measurements on the
appropriate Test Records
Are
measurements within
tolerance?
Yes
Are
all certifications
complete?
No
No
Yes
Figure 1: Certification Procedure Tasks
4
Repair or adjust
equipment as required
Done
For Tektronix Use Only
DAS 9200 Series & TLA 500 Series Certification Procedures
General Information and Conventions
The following general information and conventions apply throughout this
section:
H Each test procedure begins with a table, similar to the one below, that
provides information you need to know before starting the test.
Introduction
Equipment Required
Configuration Mainframe, configured as follows:
Prerequisites Warm-up time: 20 minutes, DAS and test equipment
The item numbers after each piece of equipment refer to line numbers in
Table 3, Required Test Equipment, which begins on page 6.
H The Test Record starts with header information that must always be filled out
completely. The Certificate Number is the number of the actual Certificate of
Traceable Calibration that you’ll complete.
H Always fill out the Incoming Data entry on the Test Record. The Outgoing
Data entry is required only if you perform a repair or adjustment to the
module such that the certification tests must be performed again.
Universal Counter/Timer with Probe (item 1)
Dual Lead Adapter (item 7)
Gold Square Pin (item 9)
Top cover removed
Memory board removed; other boards may be installed
Power-up diagnostics pass.
No previous tests required.
Equipment Required
These procedures require the use of traceable signal sources and measurement
instruments to ensure accuracy. Table 3 lists the equipment required for the
procedures.
You can obtain an accuracy ratio of 4:1 or better by using the recommended
equipment listed in the Examples column of Table 3. If your test equipment does
not meet the minimum requirements listed in the table, your test results may be
invalid.
For Tektronix Use Only
DAS 9200 Series & TLA 500 Series Certification Procedures
5
Introduction
Table 3: Required Test Equipment
Item Number and Description Minimum Requirements Examples Where Used
1 Universal Counter/Timer
with Probe
1
2 Oscilloscope with two
1,3
Probes
3 Digital Multimeter (DMM) 4.5 digit; 0 V ± 0.5 mV;
200 MHz frequency
measurement capability;
20 ppm time base accuracy
@25 MHz to 200 MHz;
10 Hz resolution
350 MHz bandwidth;
2 ns/div;
delta time = 14.2 ns ±0.9%
(±125 ps)
±1.6 V ± 3 mV (0.19%)
Tektronix DC 5010 Digital
Counter/Timer with P6125 5X Probe
1,2
P6137 10X Probe
(with TM 5000
mainframe) or
T ektronix CMC251
Tektronix 2465B with P6137 probes or
Tektronix TDS 520A with P6139A
probes
Tektronix DMM 2524, DMM 2544,
DM2510, DM2510G or
Procedure 1, 2, 4, 6
or
Procedure 3, 7, 8
Procedure 4, 5, 7
Fluke 884X or 850X series
4 DC Voltage Calibrator 0 V ± 5 mV,
0 V ± 30 mV with <5 mV
adjustment resolution
5 92A96 Acquisition Fixture N/A Refer to Appendix A on page 71 for
Fluke 34X series, Fluke 5100 series,
Fluke 5500A or
Wavetek 9100
Procedure 6
Procedure 6
parts list and build procedure.
6 Threshold Fixture N/A Refer to Appendix B, on page 73 for
Procedure 7
parts list and build procedure.
7 Dual-Lead Adapter Two required Tektronix PN 015-0325-00 Procedure 1, 2, 3, 6, 7, 8
8 Subminiature-to-Miniature
Probe Adapter
Two required Tektronix PN 013-0202-02 Procedure 3, 7, 8
Adapts the oscilloscope
probe to the dual-lead
adapter
9 Gold Square Pin Single gold square pin Part of 131-1634-00, or equivalent Procedure 2, 6
10 Spring-Tip Ground
Spring-tip ground for probe Tektronix PN 214-4125-00 Procedure 4
Connector
11 DIP Clip 16 pin Procedure 1
12 DIP Clip 20 pin, narrow, modified for
Procedure 3
two oscilloscope connections on pin 18
5
13 BNC Cable 36 in; two required Tektronix PN 012-1341-00 Procedure 6
14 Dual Banana-to-BNC
Two required Tektronix PN 103-0090-00 Procedure 6
Connector
For Tektronix Use Only
6
DAS 9200 Series & TLA 500 Series Certification Procedures
T able 3: Required Test Equipment (Cont.)
Item Number and Description Where UsedExamplesMinimum Requirements
Introduction
15 Ground Strap T ektronix PN 196-3353-XX (standard
with the 92A96/92C96 Module)
1
Probes must be compensated. Refer to the oscilloscope or counter/timer manual for the correct probe compensation
procedure.
2
The P6125 probe is a 5X probe. If you use a 10X probe, you must adjust threshold voltages accordingly.
3
For procedures requiring delta time measurements, you must compensate for oscilloscope channel-to-channel skew.
4
The handheld DMMs (DMM 252 and DMM 254) provide a 3:1 test accuracy ratio at 1.6 V (4 V full-scale range).
5
Modify the DIP clip by soldering a second pin in parallel with pin 18.
Procedure 6
Test Conditions
The certification procedures must be performed in an environment that is within
the instrument’s normal electrical and environmental operating parameters,
following a minimum 20-minute warm-up period.
These procedures support Tektronix-recommended product configurations only.
For Tektronix Use Only
DAS 9200 Series & TLA 500 Series Certification Procedures
7
Introduction
For Tektronix Use Only
8
DAS 9200 Series & TLA 500 Series Certification Procedures
Procedure 1: DAS 9219/9220 Mainframes
This procedure verifies the accuracy of the 100 MHz Time Base Clock on the
Controller board.
Time Base Accuracy
Test Equipment Setup
Equipment
Required
Configuration Mainframe, configured as follows:
Prerequisites All power-up diagnostics pass (before removing Memory board)
6
Before removing the Memory board, verify that the power-up diagnostics pass.
Universal counter/timer with probe (item 1)
Dual lead adapter (item 7)
16-pin DIP clip (item 11)
Top cover and card cage door removed
6
Memory board removed
Warm-up time: 20 minutes (test equipment and DAS/TLA mainframe)
Counter/timer probe compensated
No previous procedures required
; all instrument modules removed
Set up the test equipment as follows:
Counter/Timer with
5X Probe
Channel A:
MODE FREQ A
TERM 1 M
SLOPE +
ATTN X1
COUPL DC
CH A LEVEL +0.740 V
AVGS –1
7
Value shown is for a 5X probe. For a 10X probe, value should be 0.372 V.
For Tektronix Use Only
DAS 9200 Series & TLA 500 Series Certification Procedures
7
9
Procedure 1: DAS 9219/9220 Mainframes
100 MHz
Time Base Clock
Procedure
1. Connect the counter/timer probe GND to U121 pin 8 on the Controller
board. (See Figure 2.)
2. Connect the counter/timer probe input to U121 pin 14 and record the
measured frequency on the Test Record. Verify that the value is within the
allowable range.
1
Signal (white)
Front of mainframe
GND (black)
U121
8
14
10
Figure 2: Controller Board 100 MHz Time Base Clock Test Point Locations
(DAS 9219/9220 Mainframes)
For Tektronix Use Only
DAS 9200 Series & TLA 500 Series Certification Procedures
Certification Test Record
DAS 9219/9220 Mainframe
Instrument Model:
Serial Number: Certificate Number:
Verification Performed by: Verification Date:
Time Base Accuracy Test Data
Procedure
Characteristic Specification Tolerance
Reference
Incoming Data Outgoing Data
100 MHz Main Clock 100 MHz ± 0.01% 99.99 MHz to
100.01 MHz
Page 10,
Step 2
DAS 9200 Series & TLA 500 Series Certification Procedures
Procedure 2: DAS 9221 and TLA 510/TLA 520 Mainframes
This procedure verifies the accuracy of the 100 MHz Time Base Clock on the
Controller board.
Time Base Accuracy
Test Equipment Setup
Equipment
Required
Configuration Mainframe, configured as follows:
Prerequisites Warm-up time: 20 minutes (test equipment and DAS/TLA mainframe)
Universal counter/timer with probe (item 1)
Dual lead adapter (item 7)
Gold square pin (item 9)
Top cover and card cage door removed
All instrument modules removed
Counter/timer probe compensated
No previous procedures required
All power-up diagnostics pass
Set up the test equipment as follows:
Counter/Timer with
5X Probe
Channel A:
MODE FREQ A
TERM 1 M
SLOPE +
ATTN X1
COUPL DC
CH A LEVEL +0.740 V
AVGS –1
8
Value shown is for a 5X probe. For a 10X probe, value should be 0.372 V.
For Tektronix Use Only
DAS 9200 Series & TLA 500 Series Certification Procedures
8
13
Procedure 2: DAS 9221 and TLA 510/TLA 520 Mainframes
100 MHz
Time Base Clock
Procedure
1. Connect the counter/timer probe ground to TP4800 (GND).
2. Connect the counter/timer probe input to U1800 pin 12 and record the
measured frequency on the Test Record. (See Figure 3.) Verify that the value
is within the allowable range.
Backplane board
Card cage
U1800
10H210
12
mounting brace
Front of mainframe
Figure 3: Controller Board 100 MHz Time Base Clock Test Point Location
(DAS 9221/TLA Mainframes)
14
For Tektronix Use Only
DAS 9200 Series & TLA 500 Series Certification Procedures
Certification Test Record
DAS 9221 and TLA 510/TLA 520 Mainframes
Instrument Model:
Serial Number: Certificate Number:
Verification Performed by: Verification Date:
Time Base Accuracy Test Data
Procedure
Characteristic Specification Tolerance
Reference
Incoming Data Outgoing Data
100 MHz Main Clock 100 MHz ± 0.01% 99.99 MHz to
100.01 MHz
Page 14,
Step 2
DAS 9200 Series & TLA 500 Series Certification Procedures
Procedure 3: 92E9 Expansion Mainframe
This procedure verifies that the 92E9 Expansion Mainframe is correctly
synchronized with the master mainframe clock to ensure overall system timing
accuracy.
Time Delay Accuracy
Equipment
Required
Configuration Expansion Mainframe(s), configured as follows:
Prerequisites Warm-up time: 20 minutes (test equipment, DAS master mainframe,
9
The following procedure calls for a delta time measurement. Before taking the
measurement, you must compensate for the oscilloscope channel-to-channel skew
(in addition to the normal probe compensation).
Oscilloscope with probes (item 2)
Dual-lead adapters (2) (item 7)
Subminiature-to-miniature probe adapters (2) (item 8)
20-pin DIP clip, narrow, modified for two oscilloscope connections on
pin 18 (item 12)
Top cover and card cage door removed
All instrument modules removed
and expansion mainframe(s))
Oscilloscope probes compensated
Power-up diagnostics pass
Must have passed either Procedure 1: DAS 9219/9220 Mainframes or
Procedure 2: DAS 9221 and TLA 510/520 Mainframes
9
For Tektronix Use Only
DAS 9200 Series & TLA 500 Series Certification Procedures
17
Procedure 3: 92E9 Expansion Mainframe
Test Equipment Setup
Time Delay Procedure
Set up the test equipment as follows:
Oscilloscope A Trigger
Source Ch 1
Coupling AC
Slope +
Mode Auto
Trigger Level Mid-position
A Time Base 5 ns/Div
Ch 1 and Ch 2 Vertical
Coupling AC
Impedance 1M
Bandwidth Full
V/Div 500 mV/Div
The following procedure measures the delay between two different stages of the
clock signal.
CAUTION. Use extreme caution when connecting the DIP clip to U265. Shorting
pins to ground or to other pins will destroy the device. Make all connections with
the mainframe power off.
1. Power off the mainframes before connecting the DIP clip or any test
equipment.
2. Using the DIP clip, connect the Ch 1 scope probe input to U265 pin 10 on
the Expansion Slave board. (See Figure 4.) Connect the ground lead to U265
pin 18.
3. Connect the Ch 2 scope probe to U265 pin 5 and the ground lead to U265
pin 18.
18
For Tektronix Use Only
DAS 9200 Series & TLA 500 Series Certification Procedures
Procedure 3: 92E9 Expansion Mainframe
Pin 5
(Ch 2)
Pin 10
(Ch 1)
U265
U265
Pin 18
(GND:Ch 1
and Ch 2 )
Figure 4: DAS 92E9 Expansion Slave Board T est Point Locations
4. Power on the master mainframe (which, in turn, powers on the expansion
mainframe).
5. Adjust the scope trigger level for a stable waveform.
6. Position the rising edge of the Ch 1 waveform at the left-most vertical
graticule line and center the waveform vertically.
7. Center the Ch 2 waveform vertically.
8. Change the Horizontal Scale to 2 ns. Reposition the waveforms horizontally,
if necessary, to locate the rising edge of Ch 1 at the left-most vertical
graticule line.
9. Use the oscilloscope cursors to measure the time delta time) from the
50% point of the rising edge of the Ch 1 waveform to the 50% point of the
falling edge of the Ch 2 waveform. Record this value on the Test Record.
Verify that the value is within the allowable range.
For Tektronix Use Only
DAS 9200 Series & TLA 500 Series Certification Procedures
19
Procedure 3: 92E9 Expansion Mainframe
20
For Tektronix Use Only
DAS 9200 Series & TLA 500 Series Certification Procedures
Certification Test Record
DAS 92E9 Expansion Mainframe
Instrument Model:
Serial Number: Certificate Number:
Verification Performed by: Verification Date:
Time Delay Accuracy Test Data
Procedure
Characteristic Specification Tolerance
Reference
Incoming Data Outgoing Data
Time Delay
14.2 ns ± 500 ps 13.7 ns to 14.7 ns Page 19,
Step 9
DAS 9200 Series & TLA 500 Series Certification Procedures
Procedure 4: 92A16 Acquisition Board and 92A16E Expansion Board
This procedure verifies the accuracy of the 200 MHz Time Base Clock on the
92A16 board. This procedure also verifies the accuracy of the acquisition probe
thresholds on the 92A16 and 92A16E boards.
Time Base Accuracy
This procedure checks the 92A16 200 MHz Time Base Clock.
Test Equipment Setup
Equipment
Required
Configuration Mainframe, configured as follows:
Prerequisites Warm-up time: 20 minutes, DAS and test equipment
Universal counter/timer with probe (item 1)
Spring-tip ground connector (item 10)
Top cover and card cage door removed
92A16 installed in the lowest allowable slot number (slot 2 of DAS
mainframe); all other instrument modules removed
Counter/timer probe compensated
Power-up diagnostics pass
No previous tests required
Set up the test equipment as follows:
Counter/Timer with
5X Probe
Channel A:
MODE FREQ A
TERM 1 M
SLOPE +
ATTN X1
COUPL DC
CH A LEVEL +0.740 V
AVGS –1
10
Value shown is for a 5X probe. For a 10X probe, value should be 0.372 V.
For Tektronix Use Only
DAS 9200 Series & TLA 500 Series Certification Procedures
10
23
Procedure 4: 92A16 Acquisition Board and 92A16E Expansion Board
200 MHz
Time Base Clock
Procedure
1. Move to the 92A16 Trigger menu.
2. Press F1: START.
3. Connect the counter/timer probe spring-tip ground to the Gnd test
point (hole) on the back of the circuit board, near U716. (See Figure 5.)
4. Connect the counter/timer probe input to U716, pin 9 and record the
measured frequency on the Test Record. Verify that the value is within the
allowable range.
U716
Gnd
Pin 9
24
Figure 5: 92A16 Test Point Locations (back of board)
For Tektronix Use Only
DAS 9200 Series & TLA 500 Series Certification Procedures
Threshold Accuracy
Procedure 4: 92A16 Acquisition Board and 92A16E Expansion Board
This procedure verifies the threshold accuracy at the external control probe
connectors (J400 and J600).
Test Equipment Setup
Equipment
Required
Configuration Mainframe, configured as follows:
Prerequisites Warm-up time: 20 minutes (test equipment and DAS/TLA mainframe
11
For information about building the threshold fixture, refer to Appendix B, on
page 73.
DMM (item 3)
Threshold fixture
Top cover and card cage door removed
92A16 installed in the lowest allowable slot number (slot 2 of DAS
mainframe); 92A16E modules installed in adjacent slots; all other
instrument modules removed
and modules)
All power-up diagnostics pass
11
(item 6)
Set up the test equipment as follows:
Threshold Fixture Connected to J400 (pod B connector) of the 92A16 module—pin 1 of
threshold fixture connected to pin 1 of probe pod connector
DMM Autorange
Ground lead connected from DMM to pin 1 of threshold fixture (see
following figure)
Positive lead connected to pin 13 of threshold fixture
For Tektronix Use Only
DAS 9200 Series & TLA 500 Series Certification Procedures
25
Procedure 4: 92A16 Acquisition Board and 92A16E Expansion Board
Pin 13 (test point for
all measurements)
Soldered wires
(signal ground)
Pod B/Pod C Threshold
Procedure
1. Make the following 92A16 Setup menu selections:
H Channel menu:
Threshold Level→VAR→ 0.00V
(Repeat this setting for each pod, including all 92A16E pods, if present)
H Trigger menu:
(all don’t cares)
2. Press F1: START.
3. Record the DMM voltage reading on the Test Record. Verify that the value is
within the allowable range.
4. Move the threshold fixture to J600 (pod C connector).
CAUTION. When inserting the threshold fixture into a connector, be sure that the
fixture is correctly oriented, pin 1-to-pin 1. Incorrect insertion can damage the
instrument module.
26
5. Record the DMM voltage reading on the Test Record. Verify that the value is
within the allowable range.
For Tektronix Use Only
DAS 9200 Series & TLA 500 Series Certification Procedures
Procedure 4: 92A16 Acquisition Board and 92A16E Expansion Board
6. If any 92A16E modules are present, move the threshold fixture to the J400
and J600 connectors on those modules and record the DMM voltage reading
for each connector on the Test Record for the 92A16E. (Each 92A16E
module requires a separate Test Record.) Verify that the value is within the
allowable range.
7. Press F1: STOP.
For Tektronix Use Only
DAS 9200 Series & TLA 500 Series Certification Procedures
27
Procedure 4: 92A16 Acquisition Board and 92A16E Expansion Board
28
For Tektronix Use Only
DAS 9200 Series & TLA 500 Series Certification Procedures
Certification Test Record
DAS 92A16 Acquisition Board
Instrument Model:
Serial Number: Certificate Number:
Verification Performed by: Verification Date:
Time Base Accuracy Test Data
Procedure
Characteristic Specification Tolerance
Reference
Incoming Data Outgoing Data
200 MHz Time Base Clock 200 MHz 0.5% 199 MHz to
201 MHz
Threshold Accuracy Test Data
Characteristic Specification Tolerance
Pod B Threshold 0.000 V 8 mV –0.008 V to
+0.008 V
Pod C Threshold 0.000 V 8 mV –0.008 V to
+0.008 V
Page 58,
Step 8
Procedure
Reference
Page 26,
Step 3
Page 26,
Step 5
Incoming Data Outgoing Data
DAS 9200 Series & TLA 500 Series Certification Procedures
Certification Test Record
DAS 92A16E Expansion Board
Instrument Model:
Serial Number: Certificate Number:
Verification Performed by: Verification Date:
Threshold Accuracy Test Data
Procedure
Characteristic Specification Tolerance
Reference
Incoming Data Outgoing Data
Pod B Threshold 0.000 V 8 mV –0.008 V to
+0.008 V
Pod C Threshold 0.000 V 8 mV –0.008 V to
+0.008 V
Page 27,
Step 6
Page 27,
Step 6
DAS 9200 Series & TLA 500 Series Certification Procedures
Procedure 5: 92A96/92C96 Acquisition Board
This procedure verifies the accuracy of the 92A96/92C96 data and clock channel
input thresholds.
Threshold Accuracy
Test Equipment Setup
Equipment
Required
Configuration Mainframe, configured as follows:
Prerequisites Warm-up time: 20 minutes (test equipment and DAS/TLA mainframe
This procedure verifies the accuracy of the data and clock channel input
threshold levels.
Set up the test equipment as follows:
DMM (item 3)
Top cover and card cage door removed
Mainframe lying on its right side, with power supply down
92A96 or 92C96 installed in highest allowable slot (slot 7 for DAS,
slot 3 for TLA), all other instrument modules removed
and modules)
No previous procedures required
All power-up diagnostics pass
DMM Autorange
PRREF Procedure
1. Select the 92C96 Channel menu.
2. Press F5: DEFINE THRESHOLD, and set both the Clock and Data
Thresholds to VAR –4.00V.
3. Press F8: EXIT & SAVE.
4. Select the 92C96 Clock menu.
5. Select External for the Module Clock selection.
For Tektronix Use Only
DAS 9200 Series & TLA 500 Series Certification Procedures
33
Procedure 5: 92A96/92C96 Acquisition Board
6. Refer to Figure 6 and connect the DMM’s ground and positive input leads as
follows:
Ground lead to +5 V (C342 +lead)
Positive input lead to PRREF (TP324)
7. Record the DMM voltage reading on the Test Record. Verify that the value is
within the allowable range.
F116
F118
TP202
J200
TP204
J400
F117
TP324
TP325
Figure 6: Data and Clock Threshold Test Point Locations
CREF/DREF Procedure
8. Move the DMM’s ground lead to TP325 (ground).
9. Press F1: START, wait for the Slow Clock message to appear, and press
F1: STOP.
U245
C342
34
10. Move the DMM’s positive input lead to CREF (TP202).
11. Record the DMM voltage reading on the Test Record (the CREF –4.00 V
Threshold entry). Verify that the value is within the allowable range.
12. Move the DMM’s positive input lead to DREF (TP204).
13. Record the DMM voltage reading on the Test Record (the DREF –4.00 V
Threshold entry). Verify that the value is within the allowable range.
For Tektronix Use Only
DAS 9200 Series & TLA 500 Series Certification Procedures
Procedure 5: 92A96/92C96 Acquisition Board
14. Select the 92C96 Channel menu.
15. Press F5: DEFINE THRESHOLD, and set both the Clock and Data
Thresholds to VAR +8.75 V.
16. Press F8: EXIT & SAVE.
17. Press F1: START, wait for the Slow Clock message to appear, and press
F1: STOP.
18. Record the DMM voltage reading on the Test Record (the DREF +8.75 V
Threshold entry). Verify that the value is within the allowable range.
19. Move the DMM’s positive input lead to CREF (TP202).
20. Record the DMM voltage reading on the Test Record (the CREF +8.75 V
Threshold entry). Verify that the value is within the allowable range.
21. Select the 92C96 Channel menu.
22. Press F5: DEFINE THRESHOLD, and set both the Clock and Data
Thresholds to VAR +1.50 V.
23. Press F8: EXIT & SAVE.
24. Press F1: START, wait for the Slow Clock message to appear, and press
F1: STOP.
25. Record the DMM voltage reading on the Test Record (the CREF +1.50 V
Threshold entry). Verify that the value is within the allowable range.
26. Move the DMM’s positive input lead to DREF (TP204).
27. Record the DMM voltage reading on the Test Record (the DREF +1.50 V
Threshold entry). Verify that the value is within the allowable range.
For Tektronix Use Only
DAS 9200 Series & TLA 500 Series Certification Procedures
35
Procedure 5: 92A96/92C96 Acquisition Board
36
For Tektronix Use Only
DAS 9200 Series & TLA 500 Series Certification Procedures
Certification Test Record
DAS 92A96/92C96 Acquisition Board
Instrument Model:
Serial Number: Certificate Number:
Verification Performed by: Verification Date:
PRREF Accuracy Test Data
Procedure
Characteristic Specification Tolerance
Reference
Incoming Data Outgoing Data
PRREF Reference –1.680 V ± 90 mV –1.590 V to
–1.770 V
CREF/DREF Accuracy Test Data
Characteristic Specification Tolerance
CREF –4.00 V Threshold –4.00 V ± 75 mV –3.925 V to
–4.075 V
DREF –4.00 V Threshold –4.00 V ± 75 mV –3.925 V to
–4.075 V
DREF +8.75 V Threshold +8.75 V ± 75 mV +8.675 V to
+8.825 V
CREF +8.75 V Threshold +8.75 V ± 75 mV +8.675 V to
+8.825 V
CREF +1.50 V Threshold +1.50 V ± 75 mV +1.425 V to
+1.575 V
DREF +1.50 V Threshold +1.50 V ± 75 mV +1.425 V to
+1.575 V
Page 34,
Step 7
Procedure
Reference
Page 34,
Step 11
Page 34,
Step 13
Page 35,
Step 18
Page 35,
Step 20
Page 35,
Step 25
Page 35,
Step 27
Incoming Data Outgoing Data
DAS 9200 Series & TLA 500 Series Certification Procedures
Procedure 6: 92HS8 Interface Board and Probe Cabinets
This procedure verifies the accuracy of the 92HS8 200 MHz and 500 MHz Time
Base Clocks. This procedure also verifies the accuracy of the 92HS8 and
92HS8E Probe Cabinet data input thresholds.
The time bases used by the 92HS8/92HS8E module are configuration-dependent.
When two Probe Cabinets are connected to the Master Interface board, the
module uses the time bases on the Master Interface board. When only one Probe
Cabinet is connected, the module uses the time bases within the Probe Cabinet.
For full certification, perform both time base accuracy procedures. This certifies
time bases on both the Master Interface board and within the Probe Cabinet. If
only one Probe Cabinet is available, you will be able to perform partial
certification only, verifying only the time bases of the Probe Cabinet.
In either case you will be able to certify the Probe Cabinet threshold accuracy.
NOTE. The 92HS8E Interface Board contains no certifiable references. However,
the Probe Cabinets attached to the 92HS8E can be certified.
For Tektronix Use Only
DAS 9200 Series & TLA 500 Series Certification Procedures
39
Procedure 6: 92HS8 Interface Board and Probe Cabinets
Calibrator Accuracy: Probe Cabinet
This procedure verifies the accuracy of the 92HS8 Probe Cabinet calibrator
output.
Equipment
Required
Configuration Mainframe, configured as follows:
Prerequisites Warm-up time: 20 minutes (test equipment and DAS/TLA mainframe
12
Having two Probe Cabinets connected to the Master Interface board will invalidate
the test results.
Universal counter/timer with probe (item 1)
Dual lead adapter (item 7)
Top cover and card cage door removed
92HS8/92HS8E Interface board installed in DAS mainframe; all other
instrument modules removed
One Probe Cabinet connected to Pod D of the 92HS8 Master Interface
12
board
(mainframe must have been powered up in this configuration)
Probe Cabinet top cover removed. Probe Cabinet Acquisition board
jumpered for 8-channel (single cabinet) operation. Refer to the 92HS8
User Manual.
and modules)
Counter/timer probe compensated
No previous procedures required
All power-up diagnostics pass
Test Equipment Setup
40
Set up the test equipment as follows:
Counter/Timer with
5X Probe
13
Value shown is for a 5X probe. For a 10X probe, value should be 0.372 V.
Channel A:
MODE FREQ A
TERM 1 M
ATTN X1
COUPL DC
CH A LEVEL +0.740 V
AVGS –1
13
DAS 9200 Series & TLA 500 Series Certification Procedures
For Tektronix Use Only
Procedure 6: 92HS8 Interface Board and Probe Cabinets
Calibrator Frequency
Procedure
Perform this procedure for each Probe Cabinet to be certified.
1. Connect the counter/timer probe GND to one of the REF pins of the Probe
Cal connector (on the front of the 92HS8 Probe Cabinet).
2. Connect the counter/timer probe input to one of the SIG pins of the Probe
Cal connector.
3. Go the the 92HS8 Config menu and run the 92HS8 Deskew process for the
connected Probe Cabinet.
NOTE. The calibrator output signal occurs for only a few seconds.
4. Record the measured frequency as Calibrator Frequency on the Test Record
for the Probe Cabinet. Verify that the value is within the allowable range.
Time Base Accuracy: Probe Cabinet
This procedure verifies the accuracy of the 92HS8 Probe Cabinet 200 MHz and
500 MHz Time Base Clocks.
Test Equipment Setup
Equipment
Required
Configuration No change
Prerequisites Counter/timer probe compensated
No change from previous test.
Universal counter/timer with probe (item 1)
Dual lead adapter (item 7)
Gold square pin (item 9)
Must have completed the Calibrator Accuracy: Probe Cabinet
procedure (page 40)
For Tektronix Use Only
DAS 9200 Series & TLA 500 Series Certification Procedures
41
Procedure 6: 92HS8 Interface Board and Probe Cabinets
Frequency A/Frequency B
Procedure
Perform this procedure for each Probe Cabinet to be certified.
1. From the power-up defaults, make the following changes to the 92HS8
setup:
H Trigger menu:
Sample Mode Async
Sample Rate 500 ps
Trigger Location ––T–––––––––
Arm Signal Off
Trigger On A
Word Recognizer A=Word 10101010
True Level Filter Off
2. Connect the counter/timer probe GND to TP114 (see Figure 7) on the back
of the Memory board. (Using the dual lead adapter can make probing easier.)
3. Connect the counter/timer probe input to U212 pin 8 on the back of the
Memory board.
Fans
TP114
Gnd
42
U212
Pin 8
Figure 7: 92HS8 Memory Board Test Point Locations (back of board)
4. Press F1: START.
5. Record the measured frequency as Frequency A on the Test Record for the
Probe Cabinet. Verify that the value is within the allowable range.
6. Press F1: STOP.
7. In the Trigger menu, change the Sample Rate to 5 ns.
For Tektronix Use Only
DAS 9200 Series & TLA 500 Series Certification Procedures
Procedure 6: 92HS8 Interface Board and Probe Cabinets
8. Press F1: START.
9. With the same counter/timer probe connections used in steps 2 and 3, record
the measured frequency as Frequency B on the Test Record for the Probe
Cabinet. Verify that the value is within the allowable range.
10. Press F1: STOP.
11. If you do not have any more Probe Cabinets to certify, continue on to Time
Base Accuracy: Master Interface Board, on page 43. If you have additional
Probe Cabinets to certify, complete the following steps.
12. Power down the mainframe, remove the Probe Cabinet, and connect the next
Probe Cabinet to be certified.
13. Power on the mainframe. Allow a 20-minute warm-up time.
14. From the power-up defaults, make the following changes to the 92HS8 setup
(same as step 1):
H Trigger menu:
Sample Mode Async
Sample Rate 500 ps
Trigger Location ––T–––––––––
Arm Signal Off
Trigger On A
Word Recognizer A=Word 10101010
True Level Filter Off
15. Repeat the Calibrator Accuracy: Probe Cabinet procedure on page 40 and
steps 2 through 11 of this procedure.
Time Base Accuracy: Master Interface Board
This procedure verifies the accuracy of the 92HS8 Master Interface board
200 MHz and 500 MHz Time Base Clocks.
NOTE. If the customer operates the 92HS8 module in 8-channel mode (only one
Probe Cabinet connected) and does not need full certification (which requires a
second Probe Cabinet), proceed to Data Threshold Accuracy, on page 46.
For Tektronix Use Only
DAS 9200 Series & TLA 500 Series Certification Procedures
43
Procedure 6: 92HS8 Interface Board and Probe Cabinets
Test Equipment Setup
Frequency A/Frequency B
Procedure
Equipment
Required
Configuration No change
Prerequisites Warm-up time: 20 minutes (test equipment and DAS/TLA mainframe
No change
and modules)
Counter/timer probe compensated
All power-up diagnostics pass
Must have completed the Calibrator Accuracy:Probe Cabinet and Time
Base Accuracy: Probe Cabinet procedures (pages 40 and 41)
No change from previous test.
1. Power down the mainframe.
2. Connect two Probe Cabinets to the Master Interface board. The Probe
Cabinet Acquisition board of each cabinet should be configured for 16–32
channel operation. Refer to the 92HS8 User Manual.
NOTE. If only one Probe Cabinet is connected, the test results will be invalid.
3. Connect a 92HS8 clock cable from each cabinet to the 92HS8 Master
Interface board.
NOTE. For probing purposes, you need to remove the top cover from only one of
the two Probe Cabinets.
44
For Tektronix Use Only
DAS 9200 Series & TLA 500 Series Certification Procedures
Procedure 6: 92HS8 Interface Board and Probe Cabinets
4. Power on the mainframe.
5. From the power-up defaults, make the following changes to the 92HS8
setup:
H Trigger menu:
Sample Mode Async
Sample Rate 500 ps
Trigger Location ––T–––––––––
Arm Signal Off
Trigger On A
Word Recognizer A=Word 10101010 10101010
True Level Filter Off
6. For the Probe Cabinet with the top cover removed, connect the counter/timer
probe to the back of the Memory board as follows: GND to TP114, and the
probe input to U212 pin 8. (See Figure 7 on page 42.)
7. Press F1: START.
8. Record the measured frequency as Frequency A on the Test Record for the
Master Interface board. Verify that the value is within the allowable range.
9. Press F1: STOP.
10. In the Trigger menu, change the Sample Rate to 5 ns.
11. Press F1: START.
12. With the same counter/timer probe connections used in step 6, record the
measured frequency as Frequency B on the Test Record for the Master
Interface board. Verify that the value is within the allowable range.
13. Press F1: STOP.
For Tektronix Use Only
DAS 9200 Series & TLA 500 Series Certification Procedures
45
Procedure 6: 92HS8 Interface Board and Probe Cabinets
Data Threshold Accuracy: Probe Cabinet
This procedure verifies the Probe Cabinet data channel input threshold level.
Test Equipment Setup
Equipment
Required
Configuration Mainframe, configured as follows:
Prerequisites Warm-up time: 20 minutes (test equipment and DAS/TLA mainframe
14
For information about building the 92A96 Acquisition Fixture, refer to Appendix A,
on page 71.
15
Refer to the 92HS8 User Manual for information on running the deskew procedure.
DC Voltage Calibrator (item 4)
92A96 Acquisition Fixture
BNC Cable (item 13)
Dual Banana-to-BNC Connector (item 14)
Ground Strap (item 15)
92HS8/92HS8E Interface board(s) and Probe Cabinet(s) installed, all
other instrument modules removed
and modules)
92HS8 cabinets deskewed
All power-up diagnostics pass
14
(item 5)
15
Set up the test equipment as follows (see Figure 8 for details):
46
Ground Strap Connect the ground strap between the DAS/TLA mainframe and the
DC voltage calibrator.
DC Voltage Calibrator Connect to 92A96 Acquisition Fixture.
92A96 Acquisition
Fixture
Connect the 92HS8 channels 0 through 7 (from one Probe Cabinet) to
the 92A96 Acquisition Fixture. Ensure that you connect the reference
side of the podlets to the ground side of the fixture.
For Tektronix Use Only
DAS 9200 Series & TLA 500 Series Certification Procedures
–+
Dual
banana-to-BNC
connector
DC voltage
calibrator
92A96 Acquisition
fixture
Procedure 6: 92HS8 Interface Board and Probe Cabinets
DAS 9200
DBAC
8
7
6
5
4
3
2
1
BNC cable
92HS8 Probe cabinet
92HS8 Probe cabinet, if present
(channels unconnected)
Figure 8: 92HS8 Probe Cabinet Data Threshold Accuracy Equipment Setup
NOTE. If additional Probe Cabinets are installed, it is permissible to leave them
connected to their respective 92HS8E boards.
For Tektronix Use Only
DAS 9200 Series & TLA 500 Series Certification Procedures
47
Procedure 6: 92HS8 Interface Board and Probe Cabinets
Threshold High/
Threshold Low Procedure
NOTE. The 92HS8 cabinets must be deskewed before performing this procedure.
Refer to the 92HS8 User Manual for information on running the deskew
procedure.
1. Make the following 92HS8 Setup menu changes:
H Trigger menu:
Sample Mode Async
Sample Rate 1 ms
Trigger Location –––––––––––T
Arm Signal Off
Trigger On A
Word Recognizer A=Word 11111111 XXXXXXXX... False Level
Set the word recognizer to 1’s for the Probe Cabinet under test only.
Channels from all other installed Probe Cabinets should be set to X
(don’t cares). For example, when setting the word recognizer for the
second Probe Cabinet, the word recognizer should be set to XXXXXXXX
11111111.
H Channel menu:
Channel Definition overlay
Threshold VAR 0.000V(for all pod thresholds)
2. Set the DC voltage calibrator output to +0.030 V.
NOTE. To achieve negative polarity on some calibrators, it might be necessary to
reverse the orientation of the dual banana-to-BNC connector on the calibrator
output.
3. Press the F1: START key. The logic analyzer should indicate a “Waiting for
Trigger” condition.
4. Press F1:STOP.
5. Adjust the calibrator voltage in a negative direction, in 5 mV increments,
until the logic analyzer triggers. (Each time you increment the voltage, press
F1: START, then F1:STOP).
NOTE. If you change the calibrator voltage while the logic analyzer is “Waiting
for Trigger,” the logic analyzer might trigger. This is normal and is caused by
noise created when changing the calibrator output voltage. If this situation
occurs, simply restart the analyzer module.
48
For Tektronix Use Only
DAS 9200 Series & TLA 500 Series Certification Procedures
Procedure 6: 92HS8 Interface Board and Probe Cabinets
6. Record the calibrator voltage reading (where the logic analyzer triggered) as
Threshold (High) on the Test Record for the appropriate Probe Cabinet.
Verify that the value is within the allowable range.
7. Change the trigger condition to Word=00000000 XXXXXXXX. (For the second
Probe Cabinet, the value would be XXXXXXXX 00000000.)
8. Set the DC voltage calibrator output to –0.030 V.
9. Press the F1: START key. The logic analyzer should indicate a “Waiting for
Trigger” condition.
10. Adjust the DC voltage calibrator output in a positive direction, in 5 mV
increments, until the logic analyzer triggers. (Each time you decrement the
voltage, press F1: START, then F1:STOP).
11. Record the calibrator voltage reading (where the logic analyzer triggered) as
Threshold (Low) on the Test Record. Verify that the value is within the
allowable range.
12. Disconnect the probes from the 92A96 Threshold Fixture, and connect
probes from the next Probe Cabinet to be certified.
13. Change the trigger condition to Word=11111111 XXXXXXXX. (For the second
Probe Cabinet, the value would be XXXXXXXX 11111111. )
14. Repeat steps 2 through 12.
For Tektronix Use Only
DAS 9200 Series & TLA 500 Series Certification Procedures
49
Procedure 6: 92HS8 Interface Board and Probe Cabinets
50
For Tektronix Use Only
DAS 9200 Series & TLA 500 Series Certification Procedures
Certification Test Record
DAS 92HS8 Master Interface Board
Instrument Model:
Serial Number: Certificate Number:
Verification Performed by: Verification Date:
Time Base Accuracy Test Data
Procedure
Characteristic Specification Tolerance
Reference
Incoming Data Outgoing Data
Frequency A (derived from
500 MHz Time Base Clock)
Frequency B (derived from
200 MHz Time Base Clock
62.500 MHz
0.1%
25.000 MHz
0.1%
62.4375 MHz to
62.5625 MHz
24.9750 MHz to
25.0250 MHz
Page 45,
Step 8
Page 45,
Step 12
DAS 9200 Series & TLA 500 Series Certification Procedures
Certification Test Record
DAS 92HS8 Probe Cabinet
Instrument Model:
Probe Cabinet Serial Number: Certificate Number:
Verification Performed by: Verification Date:
Calibrator Accuracy Test Data
Procedure
Characteristic Specification Tolerance
Reference
Incoming Data Outgoing Data
Calibrator Frequency 50.065 MHz
0.01%
50.060 MHz to
50.070 MHz
Time Base Accuracy Test Data
Characteristic Specification Tolerance
Frequency A (derived from
500 MHz Time Base Clock)
Frequency B (derived from
200 MHz Time Base Clock
62.500 MHz
0.1%
25.000 MHz
0.1%
62.4375 MHz to
62.5625 MHz
24.9750 MHz to
25.0250 MHz
Threshold Accuracy Test Data
Characteristic Specification Tolerance
Threshold (High) 0.000 V 25 mV –0.025 V to
+0.025 V
Threshold (Low) 0.000 V 25 mV –0.025 V to
+0.025 V
Page 41,
Step 4
Procedure
Reference
Page 42,
Step 5
Page 43,
Step 9
Procedure
Reference
Page 49,
Step 6
Page 49,
Step 11
Incoming Data Outgoing Data
Incoming Data Outgoing Data
DAS 9200 Series & TLA 500 Series Certification Procedures
Procedure 7: 92S16/92SX109 Pattern Generator Board
This procedure verifies the timing accuracy of the 92S16 pod clocks and the
external control probe threshold. The same procedure applies to the 92SX109
board; the multiplexer adapter is not certified.
Pod Clock Maximum Skew
These procedures verify the maximum skew values for the following areas: pod
clock skew between pods (not edge positioned) and pod clock skew between
pods (edge positioned).
Equipment
Required
Configuration Mainframe, configured as follows:
Prerequisites Warm-up time: 20 minutes (test equipment and DAS/TLA mainframe
Oscilloscope with probes (item 2)
Dual-lead adapter for probe (item 7)
Subminiature-to-miniature probe adapter (item 8)
Top cover and card cage door removed
Mainframe lying on its right side, with power supply down
92S16 or 92SX109 installed in highest slot number; all other instrument
modules removed
Pattern Generator probes attached to 92S16/92SX109
and modules)
Oscilloscope probes compensated
No previous tests required
All power-up diagnostics pass
For Tektronix Use Only
DAS 9200 Series & TLA 500 Series Certification Procedures
55
Procedure 7: 92S16/92SX109 Pattern Generator Board
Test Equipment Setup
Logic Analyzer Setup
Set up the test equipment as follows:
Oscilloscope Trigger
Mode Auto
Source Ch 2
Coupling DC
Slope +
Time/Div 1 ns
Vertical Mode Ch 1 & Ch 2
Ch 1 and Ch 2 Vertical
Coupling DC
Impedance 1M
Bandwidth Full
Volts/Div 500 mV/Div
Dual-lead adapters connected to both scope probes
1. Set up the mainframe and 92S16 board as follows:
a. From the power-up default values, make the following 92S16 Setup
menu changes:
H Config menu:
Clock: Internal 200 ns
H Program menu:
Seq Label Inst Pgx_1 (Hex)
0 Start 0000
1 Jump Start FFFF
b. Press F1: START to start the 92S16 module.
2. Connect the oscilloscope Ch 2 probe to TP108 on the 92S16 board. (See
Figure 9.)
56
For Tektronix Use Only
DAS 9200 Series & TLA 500 Series Certification Procedures
Procedure 7: 92S16/92SX109 Pattern Generator Board
Gnd
J200
J220
TP154
TP156
92S16 Pattern Generation Module
U624
TP108
TP132
Gnd
Figure 9: 92S16 Test Point Locations
3. Set up the oscilloscope as follows:
Pod Clock Skew (Not
Edge Positioned)
Procedure
In the following test, you will measure several clock signals which, under ideal
conditions, would occur at precisely the same time. In reality, variations in delay
line adjustment between pods result in a timing difference between the signals.
This time difference between signals is referred to as the skew.
a. Connect the Ch 1 probe GND to the GND pin of TP132. (The ground
pin is indicated by a square pad.)
b. Touch the Ch 1 input to U624 pin 16. This is a +5 V power supply
connection.
c. Position the +5 V DC signal on Ch 1 at 1.3 V above the center horizon-
tal graticule line of the oscilloscope. The graticule center line is now set
at VBB.
d. Set the oscilloscope to trigger on the rising edge of Ch 2.
e. Set the oscilloscope display mode to Ch 1 Only.
For Tektronix Use Only
DAS 9200 Series & TLA 500 Series Certification Procedures
57
Procedure 7: 92S16/92SX109 Pattern Generator Board
In this procedure, you will first take a reference measurement, then compare the
other signals to this measurement, to verify that the skew is within allowable
limits.
4. Connect the Ch 1 probe to TP154. (The ground pin is indicated by a square
pad. See Figure 9.)
5. Adjust the oscilloscope trigger level for a stable trace.
6. Adjust the horizontal position so that the rising edge crosses through the
center of the graticule, as shown. This is the time reference (REF) for the
next step.
Pod Clock Skew (Edge
Positioned) Procedure
7. Probe TP156 using the Ch 1 probe. (See Figure 9 on page 57.) Note how far
the crossing point of the rising edge has shifted to the right (+) or left (–) of
REF. This is the skew value.
8. Record the skew value on the Test Record. Verify that the value is within the
allowable range.
9. Press F1: STOP.
10. Make the following menu 92S16 Setup menu changes:
H Channel Definition Overlay:
For Pods 8A and 8B (DAS 9200) or Pods 3A and 3B (TLA 500)
Output Level TTL
Clock Polarity
Clock Delay +5 ns
11. Press F1: START to start the 92S16 module.
12. Attach the Ch 1 probe to TP154 and adjust the triggering for a stable trace.
13. Adjust the horizontal position until the rising edge is displayed, and position
the rising edge so that it crosses through the center of the graticule. This is
the time reference (REF) for the next step.
58
For Tektronix Use Only
DAS 9200 Series & TLA 500 Series Certification Procedures
Threshold Accuracy
Procedure 7: 92S16/92SX109 Pattern Generator Board
14. Attach the Ch 1 probe to TP156 and record the skew value on the Test
Record. Verify that the value is within the allowable range.
15. Press F1:STOP.
This procedure verifies the threshold accuracy at the P6460 external control
probe connector (J240).
Test Equipment Setup
Equipment
Required
Configuration Mainframe, configured as follows:
Prerequisites Warm-up time: 20 minutes (test equipment and DAS/TLA mainframe
16
For information about building the threshold fixture, refer to Appendix B, on
page 73.
DMM (item 3)
Threshold fixture
Top cover and card cage door removed
92S16 or 92SX109 installed in highest slot number, all other instrument
cards removed
and modules)
Must have passed the Pod Clock Maximum Skew procedures
(page 55)
All power-up diagnostics pass
16
(item 6)
Set up the test equipment as follows:
Threshold Fixture Connected to J240 of the 92S16 module (align pin 1 of Threshold
Fixture with pin 1 of J240 (at end closest to J260 SMB connector)
DMM Autorange
Ground lead connected from DMM to pin 1 of threshold fixture (see
following figure)
Positive lead connected to pin 13 of threshold fixture
For Tektronix Use Only
DAS 9200 Series & TLA 500 Series Certification Procedures
59
Procedure 7: 92S16/92SX109 Pattern Generator Board
Soldered wires
(signal ground)
Pin 13 (test point for
all measurements)
Threshold Procedure
1. Make the following 92S16 Setup menu selections:
H Config menu:
P6460 Threshold Level→VAR→ 0.00V
2. Press F1: START.
3. Record the DMM voltage reading on the Test Record. Verify that the value is
within the allowable range.
4. Make the following menu 92S16 Setup menu selections:
H Config menu:
P6460 Threshold Level→VAR→ –6.40V
5. Press F1: STOP, and then press F1: START.
6. Record the DMM voltage reading on the Test Record. Verify that the value is
within the allowable range.
7. Make the following menu 92S16 Setup menu selections:
H Config menu:
P6460 Threshold Level→VAR→ +6.35V
8. Press F1: STOP, and then press F1: START.
60
9. Record the DMM voltage reading on the Test Record. Verify that the value is
within the allowable range.
10. Press F1: STOP.
For Tektronix Use Only
DAS 9200 Series & TLA 500 Series Certification Procedures
Certification Test Record
DAS 92S16/92SX109 Pattern Generator Board
Instrument Model:
Serial Number: Certificate Number:
Verification Performed by: Verification Date:
Maximum Relative Skew Test Data
Procedure
Characteristic Specification Tolerance
Pod Clock Output:
Maximum Relative Skew
Between Pods
(Not Edge Positioned)
Pod Clock Output:
Maximum Relative Skew
Between Pods
(Edge Positioned)
17
Edges of any two pod clocks from a single card must occur within 2 ns of each other (no edge delay programmed)
18
Edges of any two pod clocks from a single card must occur within 4 ns of each other (edge delay programmed)
2 ns See footnote
4 ns See footnote
17
18
Reference
Page 58,
Step 8
Page 59,
Step 14
Incoming Data Outgoing Data
Threshold Accuracy Test Data
Characteristic Specification Tolerance
0.00 V Threshold 0.000 V 2 mV –0.002 V to
+0.002 V
–6.40 V Threshold 1.600 V 12 mV 1.588 V to
1.612 V
+6.35 V Threshold –1.587 V 12 mV –1.575 V to
–1.599 V
DAS 9200 Series & TLA 500 Series Certification Procedures
Procedure
Reference
Page 60,
Step 3
Page 60,
Step 6
Page 60,
Step 9
Incoming Data Outgoing Data
Procedure 8: 92S32/92SX118 Pattern Generator Board
This procedure verifies the timing accuracy of the 92S32 pod clocks. The same
procedure applies to the 92SX118 module; the multiplexer adapter is not
certified.
Pod Clock Maximum Skew
Equipment
Required
Configuration Mainframe, configured as follows:
Prerequisites Warm-up time: 20 minutes (test equipment and DAS/TLA mainframe
19
If necessary , reconfigure the 92S32 bus jumpers for correct termination.
Oscilloscope with probes (item 2)
Dual-lead adapters for probes (item 7)
Subminiature-to-miniature probe adapters (item 8)
Top cover and card cage door removed
Mainframe lying on its right side, with power supply down
92S32 or 92SX118 installed in highest slot number; all other instrument
modules removed
Pattern Generator probes attached to 92S32/92SX118
and modules)
Oscilloscope probes compensated
No previous tests required
All power-up diagnostics pass
19
For Tektronix Use Only
DAS 9200 Series & TLA 500 Series Certification Procedures
63
Procedure 8: 92S32/92SX118 Pattern Generator Board
Test Equipment Setup
Logic Analyzer Setup
Set up the test equipment as follows:
Oscilloscope Trigger
Mode Auto
Source Ch 2
Coupling DC
Slope +
Time/Div 1 ns
Vertical Mode Ch 1 & Ch 2
Ch 1 and Ch 2 Vertical
Coupling DC
Impedance 1M
Bandwidth Full
Volts/Div 500 mV/Div
Dual-lead adapters connected to both scope probes
1. Set up the mainframe and 92S32 board as follows:
a. From the power-up default values, make the following 92S32 Setup
menu changes:
H Config menu:
Clock Internal 200 ns
H Program menu:
Seq Pgx_1 (Hex)
0 00000000
1 FFFFFFFF
H Run Control Overlay:
92S32 Pattern Range Range 1
Pattern Range Start Seq End Seq Run Mode
Range 1 0 1 Free Run
b. Press F1: START to start the 92S32 module.
2. Set up the oscilloscope as follows:
a. Connect the Ch 1 probe GND to the GND pin of TP42.
b. Touch the Ch 1 input to U508 pin 16. This is a +5 V power supply
connection.
64
For Tektronix Use Only
DAS 9200 Series & TLA 500 Series Certification Procedures
Procedure 8: 92S32/92SX118 Pattern Generator Board
c. Position the +5 V DC signal on Ch 1 at 1.3 V above the center horizon-
tal graticule line of the oscilloscope. The graticule center line is now set
at VBB.
d. Set the oscilloscope to trigger on the rising edge of Ch 2.
e. Set the oscilloscope display mode to Ch 1 Only.
TP50
J100
J200
J300
Gnd
TP54
Gnd
TP58
Gnd
Gnd
TP42
Gnd
TP40
U508
TP62
J400
Gnd
Figure 10: 92S32 T est Point Locations
For Tektronix Use Only
DAS 9200 Series & TLA 500 Series Certification Procedures
65
Procedure 8: 92S32/92SX118 Pattern Generator Board
Pod Clock Skew (Not
Edge Positioned)
Procedure
In the following test, you will measure several clock signals which, under ideal
conditions, would occur at precisely the same time. In reality, variations in delay
line adjustment between pods result in a timing difference between the signals.
This time difference between signals is referred to as the skew.
In this procedure, you will first take a reference measurement, then compare the
other signals to this measurement, to verify that the skew is within allowable
limits.
3. Connect Ch 2 probe to TP40.
4. Connect Ch 1 probe to TP50.
5. Adjust the oscilloscope horizontal position so that rising edge of the signal is
on the center vertical graticule line, as shown. This will act as a time
reference (REF) for the following steps.
6. Using the Ch 1 probe, observe the signals at each test point listed in Table 4.
Note how far the crossing points shift left (–) or right (+) of REF, and record
the maximum value in each direction.
7. Calculate a final skew value. The final skew value is the maximum possible
skew that can occur relative to a specified reference (REF). To determine the
final skew value, add the maximum left-of-REF (–) skew to the maximum
right-of-REF (+) skew. (Use unsigned values.)
T able 4: Pod Clock Output Skew
Test Point Maximum Skew Left-of-REF Maximum Skew Right-of-REF
TP 50 REF REF
TP54, TP58, TP62
Final Skew Value
20
To determine the final skew value, add the maximum left-of-REF (–) skew to the
maximum right-of-REF (+) skew. (Use unsigned values.)
20
(Not Edge Positioned), Steps 6 and 7
Transfer this value to the Test Record
66
For Tektronix Use Only
DAS 9200 Series & TLA 500 Series Certification Procedures
Procedure 8: 92S32/92SX118 Pattern Generator Board
For example, with test point measurements of TP54 = –300 ps,
TP58 = +400 ps, TP62 = –100 ps, the final skew value is
300 ps + 400 ps = 700 ps.
8. Record the final skew value on the Test Record. Verify that the value is
within the allowable range.
9. Press F1:STOP.
Pod Clock Skew (Edge
Positioned) Procedure
10. Make the following menu 92S32 Setup menu changes:
H Channel Definition Overlay:
Output Level TTL
Clock Polarity
Clock Delay +5 ns
Repeat these settings for Pods 8A through 8D (DAS 9200)
or Pods 3A through 3D (TLA 500)
11. Press F1:START.
12. Connect Ch 1 probe to TP50.
13. Adjust the oscilloscope horizontal position so that rising edge of the signal is
on the center vertical graticule line. This will act as a time reference (REF)
for the following steps.
14. Using the Ch 1 probe, observe the signals at each test point listed in Table 5.
Note the most extreme skew value to the left (–) or right (+) of REF.
15. Calculate a final skew value, and record the final skew value on the Test
Record. Verify that the value is within the allowable range.
T able 5: Pod Clock Output Skew
Test Point Maximum Skew Left-of-REF Maximum Skew Right-of-REF
TP 50 REF REF
TP54, TP58, TP62
Final Skew Value
21
To determine the final skew value, add the maximum left-of-REF (–) skew to the
maximum right-of-REF (+) skew. (Use unsigned values.)
21
16. Press F1:STOP.
17. If you reconfigured the 92S32 bus jumpers, return the jumpers to their
original configuration.
For Tektronix Use Only
DAS 9200 Series & TLA 500 Series Certification Procedures
(Edge Positioned), Steps 14 and 15
Transfer this value to the Test Record
67
Procedure 8: 92S32/92SX118 Pattern Generator Board
68
For Tektronix Use Only
DAS 9200 Series & TLA 500 Series Certification Procedures
Certification Test Record
DAS 92S32/92S118 Pattern Generator Board
Instrument Model:
Serial Number: Certificate Number:
Verification Performed by: Verification Date:
Maximum Relative Skew Test Data
Procedure
Characteristic Specification Tolerance
Pod Clock Output:
Maximum Relative Skew
Between Pods
(Not Edge Positioned)
Pod Clock Output:
Maximum Relative Skew
Between Pods
(Edge Positioned)
22
Edges of any two pod clocks from a single card must occur within 2 ns of each other (no edge delay programmed)
23
Edges of any two pod clocks from a single card must occur within 4 ns of each other (edge delay programmed)
2 ns See footnote
4 ns See footnote
22
23
Reference
Page 67,
Step 8
Page 67,
Step 15
Incoming Data Outgoing Data
DAS 9200 Series & TLA 500 Series Certification Procedures
Appendix A: 92A96 Acquisition Fixture
This procedure lists the steps needed to build the 92A96 Acquisition Fixture.
This fixture is designed to interconnect the 92A96 Module Sync Out signal to
92A96 Probe podlets. The ground side pins are ganged together. The signal side
pins are also ganged together and are terminated to ground through two parallel
100 resistors.
Material Required
The following material is required to build the fixture.
H 2 × 40 wide square-pin strip (Tektronix part number 131-2171-00)
H Two 4-inch long, 22 gauge bare wires
H Two 100 resistors, 1/4 watt (Tektronix part number 315-0101-00)
H BNC RF connector (Tektronix part number 131-2010-00)
H Solder and soldering iron
Build Procedure
Refer to Figure 11 and use the following steps to build the acquisition fixture.
1. Use diagonal cutters to cut a block of 20 pairs of square pins from the 2 × 40
square-pin connector strip.
2. Solder one 4-inch bare wire to all the square pins on the side with the longer
pins, keeping the bare wire as far from the insulator as possible.
3. Turn the strip over and solder the other 4-inch bare wire to all the square pins
on the other side of the pin strip. Cut off any excess length.
4. Check all solder connections, making sure that each pin on the fixture is
soldered to the bare wire. Check that none of the pins on the top of the pin
strip are soldered to the pins on the bottom.
5. Solder one 100 resistor between the top and bottom rows of pins at one
end of the fixture. Then solder the other 100 resistor between the top and
bottom rows of pins at the other end of the fixture. Note: you might want to
make 270° loops at each end of the resistors for easier probing.
6. Locate the BNC RF connector and clip off the two adjacent mounting posts
from one side of the outer ground ring of the connector.
For Tektronix Use Only
DAS 9200 Series & TLA 500 Series Certification Procedures
71
Appendix A: 92A96 Acquisition Fixture
7. Solder the remaining two mounting posts to one side of the fixture. This side
will be called the ground side of the fixture.
8. Solder the center conductor of the BNC RF connector to the center of the
bare wire on the other side of the fixture. This side will be called the signal
side of the fixture.
22–Gauge bare wire
BNC RF
connector
Figure 11: 92A96 Acquisition Fixture Construction
This completes the construction of the 92A96 Acquisition Fixture.
100 1/4W
Resistor
2X20 Pin strip
72
For Tektronix Use Only
DAS 9200 Series & TLA 500 Series Certification Procedures
Appendix B: Threshold Fixture
The threshold fixture is used to verify the threshold setting on the 92A16
Acquisition Module and the 92S16 Pattern Generator Module. This procedure
lists the steps needed to build the threshold fixture.
Material Required
The following material is required to build the fixture.
H Terminal connector holder, 2 holes 8 holes, Tektronix part number
352-0484-00
H Five mini-PV female connectors, Tektronix part number 131-0707-00
H 10.5 k resistor, 0.1%, Tektronix part number 321-0291-00
H 22-gauge wire
H Solder and soldering iron
Build Procedure
Refer to Figure 12 and use the following steps to build the acquisition fixture.
1. Cut three lengths of wire, each approximately one inch long.
2. Connect three of the mini-PV connectors to the three lengths of wire.
3. Connect the remaining two mini-PV connectors to the resistor, one at each
end.
4. Insert the mini-PV connectors (attached to the wires) into holes 1, 4, and 7 of
the terminal connector holder. See Figure 12.
5. Solder the three free ends of the wires together. This is the signal ground.
6. Insert the two mini-PV connectors (attached to the resistor) into holes 13 and
16 of the terminal connector holder. Pin 13 is the test point for all measurements.
CAUTION. When connecting this fixture to the acquisition board or pattern
generator board probe connector, be sure to mate pin 1 of the fixture to pin 1 of
the probe connector.
For Tektronix Use Only
DAS 9200 Series & TLA 500 Series Certification Procedures
73
Appendix B: Threshold Fixture
Resistor
Pin 16
Pin 13 (test point for
all measurements)
Pin 7
Soldered wires
(signal ground)
Pin 4
Pin 1
Figure 12: Threshold Fixture
This completes the construction of the threshold fixture.
74
For Tektronix Use Only
DAS 9200 Series & TLA 500 Series Certification Procedures
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