Tektronix DSA8300 User manual

xx
DSA8300 Digital Serial Analyzer
80A00, 80C00, 80E00 Sampling Modules
ZZZ
Service Manual
*P077057201*
077-0572-01

DSA8300 Digital Serial Analyzer
80A00, 80C00, 80E00 Sampling Modules
ZZZ
Service Manual
xx
Revision A June 2015
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.
www.tektronix.com
077-0572-01

Copyright © Tektronix. All rights reserved. Licensed software products are owned by Tektronix or its subsidiaries
or suppliers, and are protected by national copyright laws and international treaty provisions.
Tektronix products are covered by U.S. and foreign patents, issued and pending. Information in this publication
supersedes that in all previously published material. Specifications and price change privileges reserved.
TEKTRONIX and TEK are registered trademarks of Tektronix, Inc.
Contacting Tektronix
Tektronix, Inc.
14150 SW Karl Braun Drive
P.O. Box 500
Beaverton, OR 97077
USA
For product information, sales, service, and technical support:
In North America, call 1-800-833-9200.
Worldwide, visit www.tektronix.com to find contacts in your area.

Table of Contents
Important safety information...................................................................................... v
General safety summary ...................................................................................... v
Service safety summary..................................................................................... vii
Terms in this manual ........................................................................................ viii
Symbols and terms on the product......................................................................... viii
Compliance information .......................................................................................... ix
Environmental considerations............................................................................... ix
Preface.............................................................................................................. xi
Related documentation...................................................................................... xii
Operating information.............................................................................................. 1
Windows safe mode ........................................................................................... 1
Where to find user information............................................................................... 1
Theory of operation ................................................................................................ 3
Mainframe overview .......................................................................................... 4
Electrical sampling modules.................................................................................. 6
Optical sampling modules .................................................................................... 7
80A01 trigger prescale preamplifier module................................................................ 9
80A02 EOS/ESD protection module ....................................................................... 10
80A05 electrical clock recovery module................................................................... 10
82A04B phase reference module............................................................................ 11
Adjustment procedures............................................................................................ 13
Required equipment .......................................................................................... 13
Equipment hookup............................................................................................ 14
Main instrument adjustments................................................................................ 14
Adjust DC calibration ................................................................................... 15
Verify DC calibrator adjustment........................................................................ 16
Internal 10 MHz adjust.................................................................................. 17
Maintenance........................................................................................................ 19
Preventing ESD............................................................................................... 19
Inspection and cleaning ...................................................................................... 20
Removal and installation.......................................................................................... 24
Required equipment .......................................................................................... 24
External assemblies........................................................................................... 25
Line fuses and AC power cord ......................................................................... 27
Front-Panel knobs........................................................................................ 28
Trim and carrying handle ............................................................................... 29
Bottom cover ............................................................................................. 30
Left and right covers..................................................................................... 30
Internal assemblies ........................................................................................... 31
DSA8300 Digital Serial Analyzer and Modules Service Manual i

Table of Contents
Front-Panel assembly.................................................................................... 32
Front panel board ........................................................................................ 33
Front panel keypad....................................................................................... 34
Display assembly ........................................................................................ 34
Display adapter board ................................................................................... 36
Standby/On switch flex circuit ......................................................................... 38
USB assembly............................................................................................ 39
Hard disk drive........................................................................................... 40
DVD-RW drive assembly............................................................................... 41
CD/DVD-RW and hard disk drive mounting frame.................................................. 43
ATX assembly............................................................................................ 45
Power PC board.......................................................................................... 47
Power side board......................................................................................... 49
Bridge board.............................................................................................. 49
Fan assembly ............................................................................................. 50
Low-Voltage power supply ............................................................................. 52
Electrical sampling modules................................................................................. 54
Optical sampling modules ................................................................................... 56
80A00 and 82A00 series modules .......................................................................... 57
Troubleshooting.................................................................................................... 60
Check for common problems................................................................................ 60
Isolating failures to the 80EXX/80CXX modules or the mainframe.................................... 63
Isolating to a board if power will not come up ............................................................ 64
Checking the power supply voltages ....................................................................... 65
PPC and ATX PC diagnostics ............................................................................... 66
BIOS beep codes.............................................................................................. 67
Firmware updates............................................................................................. 68
After repair .................................................................................................... 68
Reloading instrument model and serial number........................................................... 69
Repackaging instructions ......................................................................................... 70
Replaceable parts list.............................................................................................. 71
ii DSA8300 Digital Serial Analyzer and Modules Service Manual

List of Figures
Figure 1: DSA8300 block diagram............................................................................... 4
Figure 2: External assemblies.................................................................................... 26
Figure 3: Knob removal .......................................................................................... 28
Figure 4: Internal assemblies..................................................................................... 31
Figure 5: J1 flex cable connector removal...................................................................... 33
Figure 6: Display assembly removal ............................................................................ 36
Figure 7: Display adaptor board removal....................................................................... 37
Figure 8: Display adaptor board replacement.................................................................. 38
Figure 9: USB assembly removal................................................................................ 39
Figure 10: Hard disk drive removal ............................................................................. 41
Figure 11: CD-RW/DVD assembly removal................................................................... 42
Figure 12: CD/DVD-RW drive removal........................................................................ 43
Figure 13: Hard drive and CD-RW/DVD drive mounting frame removal.................................. 44
Figure 14: ATX assembly removal .............................................................................. 46
Figure 15: Power PC board removal ............................................................................ 48
Figure 16: Fan assembly removal ............................................................................... 51
Figure 17: Sample of electrical module hardware removal................................................... 55
Figure 18: 80A00 and 82A00 series module disassembly.................................................... 58
Figure 19: Location of debug pins............................................................................... 64
Figure 20: External parts ......................................................................................... 74
Figure 21: Drives.................................................................................................. 76
Figure 22: Front panel and processors .......................................................................... 78
Figure 23: ATX assembly ........................................................................................ 80
Figure 24: Front panel connectors............................................................................... 82
Figure 25: 80E01, 80E02, 80E03, and 80E04 modules....................................................... 84
Figure 26: 80A05 module (Option 10G shown) ............................................................... 86
Figure 27: 80E06 module......................................................................................... 87
Figure 28: 80E07/B, 80E08/B, 80E09/B, and 80E10/B modules............................................ 88
Figure 29: Optical modules (all)................................................................................. 89
Figure 30: 80A01 module ........................................................................................ 90
Figure 31: 82A04B module ...................................................................................... 91
DSA8300 Digital Serial Analyzer and Modules Service Manual iii

Table of Contents
List of Tables
Table i: Related documentation................................................................................. xii
Table 1: Required equipment for removal and replacement.................................................. 24
Table 2: Possible causes of instrument failure ................................................................. 60
Table 3: BIOS beep codes........................................................................................ 67
Table 4: Action required for assembly replaced ............................................................... 68
Table 5: External replaceable parts.............................................................................. 75
Table 6: Drives replaceable parts................................................................................ 77
Table 7: Front panel and processors replaceable parts list.................................................... 79
Table 8: ATX assembly replaceable parts list .................................................................. 81
Table 9: Front panel connectors replaceable parts list......................................................... 83
Table 10: 80E01, 80E02, 80E03, and 80E04 modules replaceable parts list ............................... 85
Table 11: 80A05 module replaceable parts list................................................................. 86
Table 12: 80E06 module replaceable parts list................................................................. 87
Table 13: 80E07/B, 80E08/B, 80E09/B, and 80E10/B modules replaceable parts list .................... 88
Table 14: 80C00 Optical modules replaceable parts list (all optical modules) ............................. 89
Table 15: 80A01 module replaceable parts list................................................................. 90
Table 16: 82A04B module replaceable parts list............................................................... 91
iv DSA8300 Digital Serial Analyzer and Modules Service Manual

Important safety information
This manual contains information and warnings that must be followed by the user
for safe operation and to keep the product in a safe condition.
To safely perform service on this product, additional information is provided at
the end of this section. (See page vii, Service safety summary.)
General safety summary
Use the product only as specified. Review the following safety precautions to
avoid injury and prevent damage to this product or any products connected to it.
Carefully read all instructions. Retain these instructions for future reference.
Comply with local and national safety codes.
For correct and safe operation of the product, it is essential that you follow
generally accepted safety procedures in addition to the safety precautions specified
in this manual.
The product is designed to be used by trained personnel only.
Only qualified personnel who are aware of the hazards involved should remove
the cover for repair, maintenance, or adjustment.
Before use, always check the product with a known source to be sure it is
operating correctly.
This product is not intended for detection of hazardous voltages.
Use personal protective equipment to prevent shock and arc blast injury where
hazardous live conductors are exposed.
While using this product, you may need to access other parts of a larger system.
Read the safety sections of the other component manuals for warnings and
cautions related to operating the system.
When incorporating this equipment into a system, the safety of that system is the
responsibility of the assembler of the system.
To avoid fire or personal
injury
WARNING. To reduce the risk of fire and shock, make sure that the mains supply
voltage fluctuations do not exceed 10% of the operating voltage range.
Use proper power cord. Use only the power cord specified for this product and
certified for the country of use.
DSA8300 Digital Serial Analyzer and Modules Service Manual v

Important safety information
Do not use the provided power cord for other products.
Ground the 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, make sure that the product is properly grounded.
Power disconnect. The power cord disconnects the product from the power
source. See instructions for the location. Do not position the equipment so that it
is difficult to disconnect the power cord; it must remain accessible to the user at
all times to allow for quick disconnection if needed.
Observe all terminal ratings. To avoid fire or shock hazard, observe all ratings
and markings on the product. Consult the product manual for further ratings
information before making connections to the product.
Do not apply a potential to any terminal, including the common terminal, that
exceeds the maximum rating of that terminal.
The measuring terminals on this product are not rated for connection to mains or
Category II, III, or IV circuits.
Do not operate without covers. Do not operate this product with covers or panels
removed, or with the case open. Hazardous voltage exposure is possible.
Avoid exposed circuitry. Do not touch exposed connections and components
when power is present.
Do not operate with suspected failures. If you suspect that there is damage to this
product, have it inspected by qualified service personnel.
Disable the product if it is damaged. Do not use the product if it is damaged
or operates incorrectly. If in doubt about safety of the product, turn it off and
disconnect the power cord. Clearly mark the product to prevent its further
operation.
Before use, inspect voltage probes, test leads, and accessories for mechanical
damage and replace when damaged. Do not use probes or test leads if they are
damaged, if there is exposed metal, or if a wear indicator shows.
Examine the exterior of the product before you use it. Look for cracks or missing
pieces.
Use only specified replacement parts.
Use proper fuse. Useonlythefusetypeandratingspecified for this product.
Do not operate in wet/damp conditions. Be aware that condensation may occur if
a unit is moved from a cold to a warm environment.
vi DSA8300 Digital Serial Analyzer and Modules Service Manual

Important safety information
Do not operate in an explosive atmosphere.
Keep product surfaces clean and dry. Remove the input signals before you clean
the product.
Provide proper ventilation. Refer to the installation instructions in the manual for
details on installing the product so it has proper ventilation.
Slots and openings are provided for ventilation and should never be covered or
otherwise obstructed. Do not push objects into any of the openings.
Provide a safe working environment. Always place the product in a location
convenient for viewing the display and indicators.
Avoid improper or prolonged use of keyboards, pointers, and button pads.
Improper or prolonged keyboard or pointer use may result in serious injury.
Be sure your work area meets applicable ergonomic standards. Consult with an
ergonomics professional to avoid stress injuries.
Use care when lifting and carrying the product. This product is provided with
handles for lifting and carrying.
WARNING. The product is heavy. To reduce the risk of personal injury or damage
to the device get help when lifting or carrying the product.
Use only the Tektronix rackmount hardware specified for this product.
Servicesafetysummary
The Service safety summary section contains additional information required to
safely perform service on the product. Only qualified personnel should perform
service procedures. Read this Service safety summary and the General safety
summary before performing any service procedures.
To avoid electric shock. Do not touch exposed connections.
Do not service alone. Do not perform internal service or adjustments of this
product unless another person capable of rendering first aid and resuscitation is
present.
Disconnect power. To avoid electric shock, switch off the product power and
disconnect the power cord from the mains power before removing any covers or
panels, or opening the case for servicing.
Use care when servicing with power on. 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.
DSA8300 Digital Serial Analyzer and Modules Service Manual vii

Important safety information
Verify safety after repair. Always recheck ground continuity and mains dielectric
strength after performing a repair.
Termsinthismanual
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.
Symbols and terms on the product
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.
When this symbol is marked on the product, be sure to consult the manual
to find out the nature of the potential hazards and any actions which have to
betakentoavoidthem. (Thissymbolmayalsobeusedtorefertheuserto
ratings in the manual.)
The following symbol(s) may appear on the product:
viii DSA8300 Digital Serial Analyzer and Modules Service Manual

Compliance information
See the DSA8300 Digital Serial Analyzer Quick Start User Manual for
information on instrument compliance.
Environmental considerations
See the DSA8300 Digital Serial Analyzer Quick Start User Manual for
information on instrument environmental considerations.
DSA8300 Digital Serial Analyzer and Modules Service Manual ix

Compliance information
x DSA8300 Digital Serial Analyzer and Modules Service Manual

Preface
This is the service manual for the DSA8300 Digital Serial Analyzer and the
modules that install in the instrument (except for the 80A03 module).
NOTE. The 80A03 instruction manual contains its own specifications and
servicing information.
Read this preface to learn how this manual is structured, what conventions it uses,
andwhereyoucanfind other information related to servicing this product. Read
the Introduction following this preface for safety and other important background
information needed before servicing this product.
Be sure to read the introductions to all procedures. These introductions provide
important information needed to do the service correctly, safely, and efficiently.
Manual conventions
This manual uses certain conventions that you should become familiar with
before beginning service.
Assemblies and modules This manual uses the term assembly. An assembly is a related collection or unit
of electrical and mechanical assemblies, circuit cards, interconnecting cables,
and a user-accessible front panel. References to an assembly are different
than references to a module such as “Sampling modules,” “Phase Reference
modules,” or “Accessory modules,” which are products installed in the instrument
compartments.
Replaceable parts This manual refers to any field-replaceable assembly or mechanical part by its
name or generically as a replaceable part. In general, a replaceable part is any
circuit board or assembly, such as a hard disk drive, or a mechanical part, such as
I/O port connectors, that is listed in the replaceable parts list.
Safety Symbols and terms related to safety appear in the General Safety Summary and
the Service Safety Summary found at the beginning of this manual.
DSA8300 Digital Serial Analyzer and Modules Service Manual xi

Preface
Related documentation
Table i: Related documentation
Document 1
Tektronix
part number
DSA8300 Quick Start User manual. 071-2897-XX
DSA8300 Application Help. A help document accessed from the instrument
Help menu.
N/A
DSA8300 Programmer Manual. A document accessed from the instrument
Help menu.
077-0570-XX
DSA8300 Specifications Technical Reference.. Available for download
from the Tektronix Web site.
077-0571-XX
DSA8300 Performance Verification Technical Reference. Available for
download from the Tektronix Web site.
077-0682–XX
DSA8300 Service Manual (this document). Available for download from
the Tektronix Web site.
077-0572-XX
80C00 and 80E00 Series Optical and Electrical Sampling Modules User
manual.
071-3059-XX
80A01 Trigger Prescale Limiting Preamplifier Module User manual. 071-0873-XX
80A02 EOS/ESD Protection Module Instructions. 071-1317-XX
80A03 TekConnect Probe Interface Module Instructions. 071-1298-XX
82A04B Phase Reference Module User manual. 077-3124-XX
Rackmount Kit Instructions. 071-0696-XX
1Check the Tektronix Web site (www.tek.com/downloads) for the most current version of these documents.
xii DSA8300 Digital Serial Analyzer and Modules Service Manual

Operating information
CAUTION. Keep the bottom of the instrument clear of obstructions to allow proper
cooling.
Windows safe mode
If the instrument is turned off before the operating system boots, or if you have
installed a third-party product with a driver that is not compatible with the
instrument start-up, Windows 7 prompts you to either start normally or to start in
Safe mode. Use a USB or PS/2 keyboard to make the selection.
NOTE. The touch screen does not operate if you start in Safe mode
Where to find user information
CAUTION. Be sure to read all safety information, warnings, and cautions in the
user manuals that relate to the information you use there.
Some topics of interest when servicing the product are listed in the following
table. The manuals are available at www.tek.com/downloads.
Location of user topics
Manual Topic
Environmental requirements (site
considerations, operating requirements,
rackmount requirements)
Module configuration
Connecting peripherals such as monitor,
printer, keyboard, and mouse
Powering the instrument on and off
System hard drive rebuild
DSA8300 Quick Start User Manual, Tektronix
part number 071-2897-XX
Diagram of rear-panel connectors
80C00 and 80E00 Series Sampling Modules
User Manual, Tektronix part number
071-3059-XX
Installing sampling modules, connecting
cables, cleaning optical connectors
DSA8300 Specifications Technical
Reference, Tektronix part number
077-0571-XX
Instrument and module specifications
DSA8300 Digital Serial Analyzer and Modules Service Manual 1

Operating information
Location of user topics
Manual Topic
DSA8300 Performance Verification
Technical Reference, Tektronix part number
077-0682-XX
System and module performance verification
procedures
System hard drive rebuild procedure
Software release notes
Software installation
Product software install instructions,
Tektronix part number 071-2050-XX Shipped
with the product software disc.
Operating system reinstallation
2 DSA8300 Digital Serial Analyzer and Modules Service Manual

Theory of operation
This chapter describes the electrical operation of the instrument and sampling
modules.
The instrument contains many digital logic circuits. This manual refers to these
circuits with standard logic symbols and terms. Unless otherwise stated, all logic
functions are described using the positive-logic convention: the more positive of
the two logic levels is the high (1) state, and the more negative level is the low (0)
state. Signal states may also be described as "true", meaning their active state,
or "false", meaning their nonactive state. The specific voltages that constitute a
high or low state vary among the electronic devices.
The instrument control system is a dual Wintel/PowerPC based processor board.
The platform features XGA resolution flat-panel display, transparent touch screen
and user front-panel with direct access to commonly used oscilloscope functions.
The instrument is also equipped with a mouse and keyboard for access to more
advanced functions.
DSA8300 Digital Serial Analyzer and Modules Service Manual 3

Theory of operation
Mainframe overview
This mainframe overview describes the basic operation of each functional circuit
block as shown in the following figure:
Figure 1: DSA8300 block diagram
4 DSA8300 Digital Serial Analyzer and Modules Service Manual