Tektronix SPECMON3B, SPECMON6B, SPECMON26B Service

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SPECMONB Series

ZZZ

Real-Time Signal Analyzer

Service Manual

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P077090900*

077-0909-00

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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 5 0 0 Beaverto USA

For product information, sales, service, and technical support:

n, OR 97077

In North America, call 1-800-833-9200. Worl dwid e, visi t www.tektronix.com to ﬁnd contacts in your area.

Table of Contents

Important safety information ............... ................................ ................................ ...... iii

General safety summary ..................................................................................... iii

Service safety summary........................ ................................ ............................... v

Terms in this manual ............... ................................ ................................ .......... vi

Symbols and terms on the product .......................................................................... vi

Preface ............................................................................................................. vii

Manual content............................................................................................... vii

Manual conventions .................. ................................ .................................. ..... vii

Related documentation ............................... ................................ ....................... viii

Theory of operation ................................................................................................ 1

General................... ................................ .................................. ..................... 2

Signal path and processing................................... .................................. ............... 2

Display panel .............................. ................................ ................................ ..... 3

Front panel...................................................................................................... 3

Rear panel ............... ................................ ................................ ....................... 3

Power supply .......................... .................................. ................................ ....... 4

Fans.............................................................................................................. 4

Adjustment procedure....................................... ................................ ....................... 5

Running alignments .............. ................................ .................................. ........... 5

Maintenance......................................................................................................... 7

Preventing ESD................................................................................................ 7

Inspection and cleaning .................... ................................ .................................. . 7

Restoring the instrument software ............................................................................... 11

Restore the operating system ................................................................................ 11

Get the latest software...................... .................................. ................................ 12

Removal and installation procedures.. .................................. ................................ ........ 13

Preparation............................... ................................ .................................. .... 13

Trim, cabinet, and module removal................. ................................ ........................ 15

Removal procedures.......................................................................................... 18

Troubleshooting.................................................................................................... 21

Service level................................................................................................... 21

Check for common problems................................................................................ 21

Diagnostics .................................................................................................... 24

Replaceable parts .................................................................................................. 39

Parts ordering information................................................................................... 39

Using the Replaceable parts list........... ................................ ................................ .. 41

SPECMONB Series Service Manual i

Table of Contents

List of Figure

Figure 1: Block diagram ...................... ................................ .................................. ... 1

Figure 2: Power supply and HDD drive locations ............................................................. 16

Figure 3: Main customer replaceable modules....... .................................. ........................ 17

Figure 4: Status indicator locations.......................................... .................................. .. 23

Figure 5: External parts......................... ................................ ................................ .. 43

Figure 6: Display and front panel................................................................................ 45

Figure 7: Modules................. ................................ ................................ ................ 47

Figure 8: Power supply and removable hard drive ............................................................ 49

Figure 9: Upper deck fans, misc. cables .................. ................................ ...................... 51

List of Tables

Table 1: Rear panel connectors .................... .................................. ............................. 3

Table 2: External inspection checklist. .................................. ................................ ......... 8

Table 3: Internal inspection check list............................... ................................ ............ 10

Table 4: Tools required for module removal ................................................................... 14

Table 5: Legend for accessing modules table .. .................................. .............................. 15

Table 6: Accessing modules...................................................................................... 15

Table 7: Failure symptoms and possible causes.......................................... ...................... 21

Table 8: Power converter board LED status indicators........................................................ 23

Table 9: Digital interface board LED status indicators........................................................ 23

Table 10: Hardware module diagnostic error messages................................... .................... 30

Table 11: Digital interface Board diagnostic error messages................. ................................ 30

Table 12: ADC board diagnostic error messages ........ ................................ ...................... 31

Table 13: DPSA board diagnostic error messages............................................................. 32

Table 14: RF Interface board diagnostic error messages...................................................... 33

Table 15: LO1 module diagnostic error messages ............................................................. 34

Table 16: LO2/Reference oscillator diagnostic error messages .... . . .... . ..... . ..... . ..... . ..... . ..... . ..... 35

Table 17: Front panel diagnostic error messages ...................... ................................ ........ 38

Table 18: External parts................... .................................. ................................ ...... 42

Table 19: Display and front panel ............................................................................... 44

Table 20: Modules................................................................................................. 46

Table 21: Power supply and removable hard drive ...... ................................ ...................... 48

Table 22: Upper deck fans, misc. cables........................................................................ 50

ii SPECMONB Series 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 p rovided at the end of this section. (See page v, Service safety summary.)

General safety summary

Use the product only as speciﬁed. Revie 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.

w the following safety precautions to

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

SPECMONB Series Service Manual iii

Use proper power cord. Use only the power cord speciﬁed for this product and certiﬁed for the country of use.

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.

Do not disable the power cord grounding connection.

Important safety information

Power disconne

source. See instructions for the location. Do not position the equipment so that it is difﬁcult to operate the power cord; it must remain accessible to the u ser at all times to allow for quick disconnection if needed.

Connect and disconnect properly. Do not connect or disconnect probes or test leads while they are connected to a voltage source.

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 o f that terminal.

Do not ﬂoat the common terminal above the rated voltage for 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 ca

Avoid exposed circuitry. Do not touch exposed connections and components when powe r is p resent.

ct. The power cord disconnects the product from the power

se open. Hazardous voltage exposure is possible.

Do not operate with suspected failures. If you suspect that ther 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 dama 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 o r missing pieces.

Use only speciﬁed replacement parts.

Use proper fuse. Useonlythefusetypeandratingspeciﬁed for this product.

Wear eye protection. Wear eye protection if exposure to high-intensity rays or

laser radiation exists.

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.

ged. Do not use probes or test leads if they are

e is damage to this

iv SPECMONB Series Service Manual

Important safety information

Do not operate i

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 w ith 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.

Use only the Tektronix rackmount hardware speciﬁed for this product.

n an explosive atmosphere.

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 unles 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.

Verify safety after repair. Always recheck ground continuity and mains dielectric strength after performing a repair.

s another person capable of rendering ﬁrst aid and resuscitation is

SPECMONB Series Service Manual v

Important safety information

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 ter

The following symbol(s) may appear on the product:

ms may appear on the product:

DANGER indicates an injury hazard immediately accessible as you read the mark

WARNING indicates an injury hazard not immediately accessible as you read th

CAUTION indicates a hazard to property including the product.

ing.

e marking.

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.)

vi SPECMONB Series Service Manual

Preface

Manual content

Manual conventions

This is the service manual for the SPECMONB Series Real-Time Signal Analyzers.

This manual contains information related to servicing an SPECMONB Series Real-Time the instrument, or for a list of instrument speciﬁcations, refer to the appropriate user document. (See page viii, Related documentation.)

Be sure to read the introductions to all procedures. These introductions provide important information needed to perform the service correctly, safely, and efﬁciently.

This manual uses certain conventions that you should become familiar with before attempting service.

Signal Analyzer. For information related to installing and operating

Module

Plug-in module

Replaceable parts

Safety

The term module refers to a collection of items that are replaceable as a unit. A module may contain electrical and mechanical assemblies, circuit boards, and interconnecting cables.

The term Plug-in module refers to the units that plug into the Main digital interface board.

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 that is listed in the Replaceable Parts section.

Symbols and terms related to safety appear in the General Safety Summary found at the beginning of this manual. Be sure to read both the General Safety Summary and Service Safety Summary before performing any service to this instrument.

SPECMONB Series Service Manual vii

Preface

Related documentation

The following related English user documents are available if you need more information about operating the instrument. These documents can be downloaded from the Tektronix Web site (www.tektronix.com/manuals).

SPECMONB Series Real-Time Signal Analyzer Quick Start User Manual. This document provides the basic information you need to install and operate the instrument. The document includes a listing of the available instrument options an

SPECMONB Series Real-Time Signal Analyzer Series Speciﬁcations and Performa

contains the following technical information about the instrument:

Electri

d accessories.

nce Veriﬁcation Technical Reference (English). This document

cal and physical speciﬁcations, including a list of certiﬁcations

and compliances.

A perfor

against guaranteed speciﬁcations.

SPECMO

(English). Describes the GPIB instrument programming commands and interface.

SPECMONB Series Real-Time Signal Analyzer Declassiﬁcation and Security Instructions (English). Provides instruction on how customers with data

security concerns can sanitize or remove memory devices from the instrument.

mance veriﬁcation procedure to check instrument performance

NB Series Real-Time Signal Analyzer Programmer Manual

viii SPECMONB Series Service Manual

Theory of operation

This section provides a basic description of the Real-Time Signal Analyzer (RSA) operation. Refer to the following block diagram of the instrument while reading through this

section.

Figure 1: Block diagram

SPECMONB Series Service Manual 1

Theory of operation

General

A processor system controls the instrument. The instrument features an XGA resolution ﬂat-panel display, a transparent touch-screen, and a front-panel with direct acces or other pointing device, and/or a keyboard.

s to common features. You can also use the instrument with a mouse

The instrum

Signal path and processing

RF signal path

Acquisition system

Processor system

An RF sign

The RF signal path consists of an attenuator, optional preampliﬁer, 1st converter, and 2nd c replica of a portion of the input signal range to an intermediate frequency (IF) which can be sampled by a high-dynamic-range A/D converter.

The processor system controls the RF signal path.

The acquisition system samples the IF signal and converts it to digital signals. These direct display or by measurement applications to provide signal quality metrics to the user. T he acquisition data processing is performed by one of several ﬁeld-programmable gate arrays (FPGAs) under control of the processor. The processor performs m easurement applications.

The processor system consists of a COM Express PCI-based processor board and a Digital interface board that connects the processor to the acquisition board.

ent uses the Microsoft Windows 7 operating system.

al enters the instrument through a direct N-type coaxial connection.

onverter. The purpose of the RF signal path is to translate a b and-limited

digital signals are then ﬁltered numerically and processed either for

Trigger inputs

2 SPECMONB Series Service Manual

There are two coaxial trigger inputs. One is on the front panel below the display and the other is on the rear panel. Both trigger inputs connect directly to the Digital interface board. Trigger signals are processed by an FPGA on the Digital interface board. The information from the trigger system is combined with acquisition data by the processor system.

The Trigger Out signal is a coaxial connection on the front panel below the display. The trigger out signal comes from the Acquisition Control FPGA, through the Digital interface board.

Display panel

Theory of operation

Waveforms, spectral traces, measurement results, and control menus are displayed on a 10.4 inch, color, active-matrix LCD display with touch panel.

Display system

Front panel

Rear

panel

Touch panel

The display system consists of a display adapter board. The display adapter board sends text and waveform information to the display panel.

The displa

y adapter board sends information from the touch panel to the processor. The touch panel is listed as a USB HID device in the Window Device Manager tool.

The processor system detects changes in the front-panel switches and encoder. The processor also turns the LEDs on and off. Communication between the processor system and the front panel is performed over an internal USB connection.

The ON/STBY switch passes through the display adapter board, the PC carrier board, the digital interface board, and to the PC board.

The removable HDD (hard disk drive) communicates over a SATA connection directly to the processor system.

The following table describes the rear panel connectors.

Table 1: Rear panel connectors

Input or

Name

Reference In

Reference Out

LAN

USB Input/Output USB Two USB 2.0 connectors

Keyboard Input

VGA Output D-Sub

Serial Input/Output D-Sub Serial communications port (COM1) to

Trigger In Input

Output

Input

Output BNC 10 MHz output or loop-through of user

Input/Output

Connector type Description

BNC External time-base reference. See data

sheet for signal quality requirements.

Reference In signal

RJ-45

PS/2 Keyboard-only PS/2 connector

BNC TTL Gate/trigger input signal

10/100/1000baseT Ethernet connector

External monitor connector

processor system

SPECMONB Series Service Manual 3

Theory of operation

Table 1: Rear panel connectors (cont.)

Power supply

Input or

Name

Line In (blue)

MIC In (pink)

Headphone

+28 VDC Output BNC

GPIB Input/Output

Zero-span

Output

Input 3.5 mm

Output

Output BNC

Connector type Description

Audio line input (disabled)

mono

Audio input signal (microphone)

mono

3.5 mm stereo

IEEE-488

External headphone connection

Noise source drive power

General Purpose Interface Bus

Zero-span output connector

The Power conversion board provides instrument power. The Power conversion board consists of several switching supplies that translate and balance the power taken from the power supply module.

Power is distributed from the Power conversion board to both the RF Deck and the Digital interface board.

The ON/STBY switch, located on the front panel, controls all of the power to the instrument except for the part of the circuitry in the standby power supply.

Fans

Several fans p rovide cooling to the instrument:

Three fans are located in the RF Deck and are controlled by the RF Interface.

Two fans provide cooling for the Digital Deck o f the instrument.

The power supply module has an internal fan.

The COM Express PC board has a fan that is controlled by the COM Express PC board.

The optional DPSA board contains a fan.

4 SPECMONB Series Service Manual

Adjustment procedure

There are no physical user adjustment procedures for the instruments. However, you can run alignments from the product application.

Running alignments

Alignments are adjustment procedures run by the instrument using internal reference signals and measurements, and do not require any external equipment or connections.

There are two settings for Alignments:

Automatically align as needed (Auto mode)

Run alignments only when the Align Now button is pressed

If Automatically align as needed is selected, alignments run whenever the Signal Analyzer detects a sufﬁcient change in ambient conditions to warrant an alignment.

If Run alignments only when “Align Now” button is pressed is selected, the Signal Analyzer never runs an alignment unless you manually initiate an alignment using the Align Now button.

Alignment status

Initiating an alignment

NOTE. There are a few critical adjustments that must run occasionally even if

matically align as needed is not enabled.

Auto

The instrument displays a message on screen when it needs to run an alignment. If

essage is displayed, you can assume that the instrument is properly aligned.

no m

To initiate an alignment:

1. Select Setup > Alignments.

2. Click the Align Now button.

The instrument runs an alignment procedure. It displays status messages as the alignment procedure is running. If the instrument fails the alignment procedure, the it displays an error message. If the instrument fails an alignment, run Diagnostics (Tools > Diagnostics) to determine why the alignment failed.

NOTE. While an alignment is running, both the IF and IQ outputs are disabled.

SPECMONB Series Service Manual 5

Adjustment procedure

Alignments during

warm-up

Alignments during normal

operation

Alignments are not

ations

calibr

Alignments are oscillator alignments); the instrument uses default alignment values (if Auto mode is selected).

NOTE. Instrument performance is not warranted during the speciﬁed 20 minute

warm-up period.

Once the instrument reaches operating temperature, a full alignment is run every two hours (for up to two minutes). Alignments can run more frequently if the operating temperature changes. If an alignment becomes necessary during a measurement cycle (if Auto mode is selected), the measurement is aborted and an alignm measurement cycle restarts.

Alignme reference signals and measurements. Calibrations can only be performed at a Tektronix service center and require the use of traceable test equipment (signal sources and measuring equipment) to verify the performance of the instrument.

nts are adjustment procedures run by the instrument using internal

not run during the 20 minute warm-up period (except for RF

ent procedure is run. Once an alignment procedure is completed, the

6 SPECMONB Series Service Manual

Maintenance

Preventing ESD

This section contains the information needed to do periodic and corrective maintenance on the instrument.

Before servicing this product, read the Safety summary at the front of the manual and the ESD information below.

CAUTION. Static discharge can d amage any semiconductor component in this

instrumen

When performing any service that requires internal access to the instrument, adhere to the following precautions to avoid damaging internal modules and their components due to electrostatic discharge (ESD).

Minimize handling of static-sensitive circuit boards and components.

Transport and store static-sensitive modules in their static protected containers or on a metal rail. Label any package that contains static-sensitive boards.

Inspection and cleaning

Discharge the static voltage from your body by w earing a grounded antistatic wrist strap while handling these modules. Perform service of static-sensitive modules only at a static-free work station.

Do not allow anything capable of generating or holding a static charge on the work station surface.

Handle circuit boards by the edges when possible.

Do not slide the circuit boards over any surface.

Avoid handling circuit boards in areas that have a ﬂoororwork-surface covering capable of generating a static charge.

This section describes how to inspect for dirt and damage. It also describes how to clean the exterior and interior of the instrument. Inspection and cleaning are done as preventive maintenance. Preventive maintenance, when done regularly, may pre

Preventive maintenance consists of visually inspecting and cleaning the instr

vent instrument malfunction and enhance its reliability.

ument and using general care when operating it.

SPECMONB Series Service Manual 7

Maintenance

General care

Interior Ccleaning

Exterior cleaning

How often preve

ntive maintenance should be performed depends on the severity of the environment in which you use the instrument. A proper time to perform preventive maintenance is just before instrument adjustment.

The cabinet helps keep dust out of the instrument and should normally be in place when operating the instrument.

Use a dry, low-velocity stream of air to c lean the interior of the chassis. Use a soft-bristle, non-static-producing brush for cleaning around c omponents. If you must use a liquid for minor interior cleaning, use a 75% isopropyl alcohol solution and rinse with deionized water.

WARNING. Before performing any procedure that follows, power down the

instrument and disconnect it from line voltage. Failure to do so could cause personal injury, or death.

Clean the exterior surfaces of the chassis with a dry lint-free cloth or a soft-bristle brush. If any dirt remains, use a cloth or swab dipped in a 75% isopropyl alcohol solution. Use a swab to clean narrow spaces around controls and connectors. Do not use abrasive compounds on any part of the chassis that may damage the chassis.

Clean the On/Standby switch using a dampened cleaning towel. Do not spray or wet the switch directly.

CAUTION. Avoid the use of chemical cleaning agents which might damage the

plastics used in this instrument. Use only deionized water when cleaning the menu buttons or front-panel buttons. Use a 75% isopropyl alcohol solution as a cleaner and rinse/wipe with deionized water. Before using any other type of cleaner, consult your Tektronix Service Center or representative.

Inspect the outside of the instrument for damage, wear, and missing parts, using the following table as a guide. Immediately repair defects that could cause personal injury or lead to further damage to the instrument.

Table 2: External inspection checklist

Item Inspect for Repair action

Cabinet, front panel, and cover

Front-panel knob Missing, damaged, or loose

Cracks, scratches, deformations, damaged hardware

knob

Repair or replace defective module

Repair or replace missing or defective knob

8 SPECMONB Series Service Manual

Table 2: External inspection checklist (cont.)

Item Inspect for Repair action

Connectors

Carrying handle, and cabinet feet

Accessories

Broken shells, cracked insulation, and deformed contacts; dirt in connectors

Correct operation Repair or replace defective

Missing items or parts of items, bent pins, broken or frayed cables, and damaged connectors

Repair or replace defective modules; clear or wash out dirt

module

Repair or replace damaged or missing items, frayed cables, and defective modules

Maintenance

Flat panel display cleaning

The display is a soft plastic display and must be treated with care during cleaning.

CAUTION. Improper cleaning agents or methods can damage the ﬂat panel

display. Avoid using abrasive cleaners or comme rcial glass cleaners to clean the display surface. Avoid spraying liquids directly on the display surface. Avoid

bing the display with excessive force.

scrub

Clean the ﬂat panel display surface by gently wiping the display with a

n-room wipe (such as Wypall Medium Duty Wipes, #05701, available from

clea Kimberly-Clark Corporation).

he display is very dirty, moisten the wipe with distilled water or a 75%

If t isopropyl alcohol solution and gently wipe the display surface. Avoid using excess force or you may damage the plastic display surface.

CAUTION. To prevent moisture from getting inside the instrument during external

cleaning, use only enough liquid to dampen the cloth or applicator.

To access the inside of the instrument for inspection and cleaning, refer to the Removal and installation procedures in this section.

Inspect the inside of the instrument for damage and wear, using the following table as a guide. Defects found should be repaired immediately.

CAUTION. To prevent damage from electrical arcing, ensure that circuit boards

and components are dry before applying power to the instrument.

SPECMONB Series Service Manual 9

Maintenance

Table 3: Intern

Item Inspect for Repair action

Circuit boards

Resistors Burned, crac

Solder connections Cold solder or rosin joints.

Capacitors

Wiring and cables Loose plugs or connectors.

Chassis Dents, deformations, and

al inspection check list

Loose, broken solder connections. Burned circuit boards. Burned, brok circuit-run plating.

blistered condition.

Damaged or Corroded solder on leads or terminals.

Burned, broken, or frayed wiring.

damaged hardware.

, or corroded

en, or cracked

ked, broken,

leaking cases.

Remove and rep damaged circuit board.

Remove and re damaged circuit board.

Resolder jo with isopropyl alcohol.

Remove and damaged circuit board.

Firmly seat connectors. Repair or replace modules with defe cables.

Straighten, repair, or replace defective hardware.

int and clean

ctive wires or

To clean the instrument interior, do the following steps:

lace

place

replace

1. Blow off dust with dry, low-pressure, deionized air (approximately 9 psi).

2. Remove any remaining dust with a lint-free cloth dampened in isopropyl

alcohol (75% solution), and a clean lint-free cloth dampened in warm deionized water. (A cotton-tipped applicator is useful for cleaning in narrow

es and on circuit boards.)

spac

10 SPECMONB Series Service Manual

Restoring the instrument software

Restoring the

instrument software

CAUTION. The operating system (OS) restore process deletes a ll existing content

on a hard drive, including the instrument application software and saved data and conﬁguration ﬁles. Save or back up important data and conﬁguration ﬁles to external ﬁles or media before restoring the instrument OS.

Restore the operating system

This proc instrument hard disk drive. You will need to reload the instrument applications after restoring the operating system.

CAUTION. Save or back up important data and conﬁguration ﬁles to external ﬁ les

or media before restoring the instrument OS.

NOTE. Read through these instructions before you perform the procedure. There

is a 5-second time frame in which you must press the F5 key to acces s the restore program.

edure restores the instrument operating system from a partition on t he

1. Restart the instrument. During the boot-up process you will see the following message at the center of the screen:

Starting Acronis Loader... press F5 for Acronis Startup Recovery Manager

2. Repeatedly press the F5 key until the Acronis True Image Tool opens. There is an approximate 5-second time period from when the message appears until the instrument proceeds with the normal instrument startup. If the instrument does not open the Acronis application, power off the instrument, then power on the instrument and try again.

3. Click Restore.

4. In the Conﬁrmation dialog box, click Ye s to restore the instrument operating

system, or No to exit the restore process. The restore process takes approximately 30 minutes; the actual time depends on the instrument conﬁguration.

5. Reinstall the instrument product software.

SPECMONB Series Service Manual 11

Restoring the instrument software

Get the latest

software

For information on the latest software and critical updates, check the Tektronix Web site (www.tektronix.com/software) and search for virus, patch, or critical updates for y software.

our instrument. Follow the on-screen instructions to download the

12 SPECMONB Series Service Manual

Removal and installation procedures

This subsection contains procedures for the removal and installation of all customer-replaceable mechanical and electrical modules.

Preparation

WAR NI NG . Before doing this or any other procedure in this manual, read

the Safety Summary found at the beginning of this manual. Also, to prevent possible injury to service personnel or damage to the instrument components, read Installation in the SPECMONB Series Real-Time Signal Analyzers Quick Start Use Preventing ESD in this section.

r Manual, available on the Web at www.tektronix.com/manuals, and

Removal and installation procedures

This sub

WAR N

cord from the line voltage source. Failure to do so could cause serious injury or death.

NOTE. Read the Equipment Required section for a list of the tools needed to

remove and install modules in this instrument. (See Table 4 on page 14.) Read the cl

section contains the following items:

Preparatory information that you need to properly do the procedures that

A list of tools required to remove and disassemble all modules.

Procedures for removal and reinstallation of the electrical and mechanical modules.

ING. Before doing any procedure in this subsection, disconnect the power

eaning procedure before disassembling the instrument for cleaning.

SPECMONB Series Service Manual 13

Removal and installation procedures

Equipment requ

ired. Most modules in the instrument can be removed with a

size T15 TORX screwdriver. Other tools needed for complete disassembly are listed in the following table.

Table 4: Tools required for module removal

Item no. Name Description General tool number

6 Angle-tip Tweezers

Screwdriver handle A ccepts TORX-driver

T10 TORX tip Used for removing

T15 TORX tip Used for removing most

1/8 inch ﬂat-bladed screwdriver

#0 Phillips screwdriver Screwdriver for

3/16 inch open-end wrench

5/16 inch open-end wrench

MA-800G Soldering Aid

bits

instrument. screws TORX-driver bit for T10 size screw heads

instrument screws. TORX-driver bit for T15 size screw heads

Screwdriver for unlocking cable connectors

removing small phillips screws, CDRW, and hard d rive

Used to remove front panel knobs

Used to remove nut posts

Used to remove the front panel trim

620-440

640-235

640-247

Standard tool

14 SPECMONB Series Service Manual

Trim, cabinet, and module removal

Use the following two tables to determine items of the instrument that you will need to remove to access replaceable parts. The ﬁrst table lists items that may need to be removed before you can access a replaceable module. The second table lists customer replaceable modules and which items must be removed to access the r replaceable modules is shown in the following ﬁgure. (See Figure 2 on page 16.)

Table 5: Legend for accessing modules table

eplaceable module. The approximate location of the primary customer

Removal and installation procedures

A - Front Cover (if installed) F - Internal Cover, top

B - Front panel trim

C - Pouch (if installed) H- Removable HDD (if installed) M - Power Conversion board

D - Cabinet, top

E - Cabinet, bottom

G - Internal Cover, bottom L - Internal HDD (if installed)

I- Removable HDD Frame

J-DisplayAssembly

K - Front Panel

N- Power Supply

Table 6: Accessing modules

Remove these items to access the module

Modules to replace A B C D E F G H I J K L M N

Display Assembly

Panel

Front

Removable HDD Drive (if installed)

Removable HDD Frame

Digital Fan Tray (Upper Deck)

RF Deck Fan Tray

Real Time IQ/IF Output Acquisition board (if installed)

RTT/DPSA board

COM-Express PC board

Internal HDD (if installed)

er Conversion board

Pow

Power Supply

SPECMONB Series Service Manual 15

Removal and installation procedures

Figure 2: Power supply and HDD drive locations

16 SPECMONB Series Service Manual

Removal and installation procedures

Figure 3: Main customer replaceable modules

SPECMONB Series Service Manual 17

Removal and installation procedures

Removal procedures

NOTE. Unless directed otherwise, installation is the reverse of the removal

procedure.

These procedures assume you have access to the module you are removing. Use the tables to determine which trim and/or modules to re move to gain access. (See Table 5 on pa reference for customer replaceable module locations. (See Figure 2 on page 16.)

CAUTION. When removing or installing the keypad, make sure you do not touch

the switch contacts with your ﬁngers. The oils in your ﬁngers will degrade or damage the switch contacts. To help prevent damage to the keypad use cotton gloves when removing or installing the keyboard pad.

CAUTION. To avoid damage to the front panel Standby/On switch assembly, do

not set the Display module assembly on a w ork surface. Sliding the instrument over th

ge 15.) (See Table 6 on page 15.) A ﬁgure is also provided as a quick

e edge of the work surface could break off the On/Standby switch assembly.

Display

Perform these steps to remove the Display module:

1. Remove the four screws securing the display to the Main chassis; two on the topandtwoontheleftside.

2. Disconnect the cables from the COM Express PC board and keep the cables connected to the display assembly.

3. Gently remove the Display module from the Main chassis.

CAUTION. Be careful when removing and reinstalling the Display module cables.

If the connectors have bent pins or are installed incorrectly the Display may

e destroyed.

4. Disconnect the smaller Display cable from J2 on the Display Adapter board.

5. Disconnect the larger Display cable from J3 on the Display Adapter board.

18 SPECMONB Series Service Manual

Removal and installation procedures

Front panel

Digital deck fans

Removable hard disk drive

Perform these s

1. Disconnect the Front panel cable from connector 71 on the Digital interface board.

2. Remove the six T15 screws that secure the Front panel to the chassis; two on the top, two on the right side, and two on the bottom front.

3. Pull the Front panel assembly from the chassis.

Perform these steps to remove the fan assembly from the digital deck:

1. Unplug the marked Fan1 and Fan2.

2. Remove the four T15 TORX screws securing the fan assembly, located on the left side of the instrument.

3. Lift the fan assembly up through the narrow slot between the side panel and the card cage.

Perform these steps to remove the removable hard disk drive (if installed):

1. Loosen the thumbscrews securing the drive to the front panel.

teps to remove the Front panel:

fan control cable from the Digital interface board connector,

Power supply

2. Grasp

3. Remo

Follow these steps to remove the power supply assembly:

1. Remove the six T15 screws securing the power supply access cover from

2. Remove the two T15 screws securing the right side of the power supply

3. Remove the power supply support bracket.

4. Disconnect the line trigger cable from J7 of the Power conversion board.

5. Disconnect the power supply cable from the line ﬁlter cable.

the drive assembly by the thumb screws and pull the assembly straight

out of the instrument.

ve the four screws securing the hard drive to the bottom bracket.

the end of the Power Supply.

support bracket.

SPECMONB Series Service Manual 19

Removal and installation procedures

Power conv

ersion board

6. Remove the two T top front chassis.

7. Pull the power take a little effort to pull, as the power supply must disconnect from the power convertor board.

CAUTION. To prevent damage to the power convertor board connector, do not lift

the left end of the power supply while pulling.

Perform these steps to remove the Power conversion board:

NOTE. Remove the power supply support bracket and the power supply before

removing the Power conversion board.

1. Remove the cables connected to the Power conversion board:

ATX POWER 2 0 - p i n ca ble

ANALOG POWER 12-pin cable

RF PWR 50-pin ribbon cable

15 screws securing the power supply shield tabs to the

supply assembly from the left side of the chassis. This will

COM Express PC board

ribbon cable 10-pin cable

Flat

Line Trigger Sense 2-pin cable

2. Remove the ﬁve T15 screws securing the Power converter board to the chassis.

3. Lift the Power converter board from the instrument.

Perform these steps to remove the COM Express PC board:

1. Re

2. Disconnect all cables attached to the COM Express PC board.

3. Lift the latch levers on the top edge of the COM Express PC board assembly

4. Lift the COM Express PC board from the Instrument.

move the two screws securing the COM Express PC board to the main

chassis card guide.

to disconnect it from the Digital interface board.

20 SPECMONB Series Service Manual

Troubleshooting

WAR NI NG . Before doing this or any other procedure in this manual, read

theSafetySu possible injury to service personnel or damage to the instrument components, read Installation in the SPECMONB Series Real-Time Signal Analyzers Quick Start User Manual, available on the Web at www.tektronix.com/manuals, and Preventing ESD in this section.

Troubleshooting contains information and procedures designed to help you isolate faults to a module.

This subsection assumes that service personnel have the skills required to work on the instrument, including PC troubleshooting and Windows operating system skills. Details of PC and Windows operation and service are not in this manual.

For assistance, please contact your local Tektronix Service Center.

mmary found at the beginning of this manual. Also, to prevent

Servic

e level

This section contains information and procedures designed to help you isolate faulty modules in the instrument. If a module needs to be replaced, follow the

val and Installation Pro cedures, located in this section.

Remo

Check for common problems

the following table to quickly isolate possible failures. The table lists

Use problems and possible causes. The list is not exhaustive, but it may help you eliminate a problem that is quick to ﬁx, such as a blown fuse or loose cable.

Table 7: Failure symptoms and possible causes

Symptom Possible cause(s)

Instrument will not power on Power cord not plugged in

Faulty power supply (check Status LEDs)

Faulty power conditioner board

Faulty front panel power switch

Faulty display adapter board

SPECMONB Series Service Manual 21

Troubleshooting

Table 7: Failure symptoms and possible causes (cont.)

Symptom Possible cause(s)

Front panel light comes on (instrument powers on), but one or more fans will not operate

No beeps on startup or multiple beeps on startup (single beep is OK)

Flat panel display blank

Faulty fan cable

Defective fan assembly

Faulty power supply (check Status LEDs)

Faulty COM Express PC board

Faulty CPU

Digital interface board problem

Faulty COM Express PC board

BIOS setting not Advanced Chipset Features > - On Chip VGA > Enabled - Boot Display > CRT + LFP

Defective cable from PC Carrier board to Display adapter board

atus indicator LEDs

Defective backlighting display

Faulty display

Faulty digital interface board

Faulty display adapter board

Hard disk drive related symptoms

Defective hard disk drive

Incorrect hard disk type selected in the BIOS setup

Replaceable hard disk drive not installed

Power supply failure

Corrupted BIO S module ﬁrmware, reinstall ﬁrmware

Loose cable

Corrupted OS image

Check that the Status Indicator LEDs are lit on the Power converter and Digital interface boards to ensure the power supplies are operating. (See Figure 4.) (See Table 8. ) (Se e Table 9.)

22 SPECMONB Series Service Manual

Figure 4: Status indicator locations

Troubleshooting

Table 8: Power converter board LED status indicators

LED Status Indication

DS171 STANDBY

DS172 -15 V OK

DS173 -8 V OK

DS174 +8 V OK

DS175 +15 V OK

DS176 +30 V OK

Table 9: Digital interface board LED status indicators

LED Sta

481

S482

S483

DS484 +3.3 V OK

DS485 +2.5 V OK

DS486 +1.8 V OK

DS487 +1.5 V OK

DS488 FPGA INIT

DS489 FPGA DONE

DS4810 STATUS 0

tus Indication

OCK FAIL (normally off)

5VSBOK

5VOK

SPECMONB Series Service Manual 23

Troubleshooting

Diagnostics

Table 9: Digital interface board LED status indicators (cont.)

LED Status Indication

DS4811 STATUS 1 (normally off)

DS911 +1.2 V OK

This section describes how to use and interpret the embedded diagnostics interface for both the Power on self tests (POST) and the extended diagnostics tests. The se tests determine whether there has been a module failure in the instrument.

Power on self tests

The instrument runs Power on self tests automatically every time the instrument is powered up. If a failure is detected during this process, the instrument displays the Power-On Self Tests tab of the Diagnostics window to list which module(s) failed.

Select the Diagnostics Failure Info tab in the Diagnostics window for more information about failures.

24 SPECMONB Series Service Manual

Troubleshooting

All failu Windows Event Viewer, click the Event Viewer button on the Diagnostics Failure Info tab. The Windows Event Viewer is also available in the Administrative Tools portion of the Windows Control Panel.

NOTE. Check the timestamp in the Event Viewer, as errors are stored on disk

and may be from earlier power cycles.

re information is logged in the Windows Event Viewer. To access the

SPECMONB Series Service Manual 25

Troubleshooting

Diagnostics tests

The Diagnostic instrument, including the POST tests. To run diagnostics:

1. Select Tools >

2. Select the Diagnostics tab and click All Modules, All Tests.

3. Click Single Test in the Repeat area.

s tab enables you to run any or all of the diagnostics tests in the

Diagnostics in the application menu bar.

4. Click RUN. The instrument performs the selected tests. For tests that require

manual intervention, follow the on-screen instructions to complete the tests. A green dot next to a test means that the marked test is currently running. If the test completes successfully the green dot is replaced by a black check mark. If the test fails, the green dot is replaced by a red X.

5. To run spe ciﬁc tests, select those tests in the list and use the Repeat segment of the window to set the test run conditions. The Repeat controls (see the following ﬁgure) let you:

A) Repeat the t est(s) a speciﬁed number of times,

B) Repeat the test(s) until a failure occurs,

C) Repeat the test(s) continuously even if failures occur, or

D) Run the test(s) only one time.

26 SPECMONB Series Service Manual

Troubleshooting

Microsoft windows event

viewer

The Microsoft w diagnostics failure information, with other messages regarding the operating system. If there is not a shortcut to the Event Viewer on the desktop you can access it by clicking the Event Viewer button on the Diagnostics Failure Info tab.

indows event viewer maintains a permanent record of instrument

To view the Diagnostics failure information, ﬁrst click the Windows Logs icon in the left frame (under Event Viewer (Local)). Then click the Applications icon. The view changes to show the individual error reports, as shown in the following ﬁgure.

Scroll through the Event list to locate error events. Pay attention to the date and time stamps, as the information is a permanent record and shows failure information from earlier diagnostic sessions.

Also note that the Signal Analyzer diagnostic errors are labeled as TekRSA in the Source column, to differentiate them from operating system messages.

SPECMONB Series Service Manual 27

Troubleshooting

Scroll through and time stamps, as the information is a permanent record and shows failure information from earlier diagnostic sessions.

Also note that the Signal Analyzer diagnostic errors are labeled as TekRSA in the Source column, to differentiate them from operating system messages.

Clicking on an error message to display error information in the General or Details tabs located below the list.

Double-click an error message to open a separate window for that error message. The window shows the date and time the error message was generated and the source of the error message. The text of the error message is shown in the

iption area. The three buttons at the upper right let you navigate through the

Descr error list (using the up and down arrows), or sends the record to the default printer.

the Event list to locate error events. Pay attention to the date

u scroll down in the error description, the event viewer always adds a line

If yo that says “For more information, see Help and Support Center at” and includes a link to Microsoft.com. Do not use this link, as Microsoft has no information o n Tektronix instrument error messages.

Click Help in the Event Viewer Menu bar to open the online help and learn more information on using the Event Viewer.

28 SPECMONB Series Service Manual

Troubleshooting

Diagnostic test error

messages

The following t recommended actions for each message.

Hardware modu

Digital interface board (See Table 11 on page 30.)

ADC board (See Table 12 on page 31.)

DPSA board (See Table 13 on page 32.)

RF interface board (See Table 14 on page 33.)

LO1 module (See Table 15 on page 34.)

LO2/Refe

Front panel (See Table 17 on page 38.)

ables list the instrument diagnostics error messages, with

le(SeeTable10onpage30.)

rence oscillator (See Table 16 on page 35.)

SPECMONB Series Service Manual 29

Troubleshooting

Table 10: Hardw

Test Error message Recommended a

Hardware Init

Read Programmable Part Versions

are module diagnostic error messages

Uninitialized

See Event View information

The Digital found.

Acquisition Board not found. Send the instrument to a Tektronix Service Center for repair.

The DPSA Board was not found. Replace RTT/DPSA board.

Load Acqui

RF Interface Board not found or FPGA Load failed.

LO1 not found or FPGA Load failed. Send the instrument to a Tektronix Service Center for r epair.

L02/Reference Oscillator not found or FPGA

The RF C found or the FPGA was not loaded.

e to communicate with Digital

Unabl interface board.

reading ID’s.

Error

Unable to communicate with PPC. Send the instrument to a Tektronix Service Center for repair.

er for more

Interface Board was not

sition Board Failed.

Load failed.

onverter board was not

The COM Expres board. Restart the instrument and check the Event Viewer. If the problem persists, send the instrument to Tektronix Service Center for repair.

Send the ins

Send the instrument to a Tektronix Service Center for repair.

Replace RF Interface board.

Send the instrument to a Tektronix Service Center for repair.

Send th

Possible Digital interface board problem. Restart the instrument. If problem persists, return to Tektronix Service Center for repair.

Send the instrument to a Tektronix Service Center for repair.

trument to a Tektronix Service Center for repair.

e instrument to a Tektronix Service Center for repair.

ction

s PC is not communicating with the Digital Interface

Table 11: Digital interface Board diagnostic error messages

Test Error message Recommended action

Digital Board ID Veriﬁcation

Load Test

Digital Board Register R/W Test

Test

Digital Interface Board ID Veriﬁcation Failed.

Bad FPGA ﬁle path. Reinstall the product software.Digital Board FPGA

Exception in Digital Interface FPGA Load.

Done bit not returned high.

Digital Interface alternating 1's and 0's R/W test failed.

Digital Interface reg R/W Walking 1's test failed.

Unable to communicate with Digital Interface Board.

SRAM memory failure at “memory address”.

Write value was “xxx” Read Value was “xxx”

Send the instrument to a Tektronix Service Center for repair.

Send the instrument to a Tektronix Service Center for repair.Digital Board SRAM

Send the instrument to a Tektronix Service Center for repair.

30 SPECMONB Series Service Manual

Table 11: Digital interface Board diagnostic error messages (cont.)

Test Error message Recommended action

Invalid number of return words. Send the instrument to a Tektronix Service Center for repair.Digital F IFO Test

Bad value in returned buffer. Send the instrument to a Tektronix Service Center for r epair.

PPC returned unknown status. Send the instrument to a Tektronix Service Center for repair.PPC POST Results

PPC did not return POST status. Send the instrument to a Tektronix Service Center for repair.

Digital Board Acquisition Test

Digital Board SDRAM Test

Digital Board FLASH Test

Digital Board 28 Volt Supply Test

Digital Board Audio Test

Acquisition data at “offset xxx” was not correct.

Write failure. S D RAM addr: 0xXXXX

Read failure. SDRA M addr: 0xXXXX

Failed bit exclusion Test with pattern XXXX.

Validation failed at offset XXXX.

Blocks XXXX and XXXX are mirrored.

Veriﬁcation of this supply is done by the operator.

No audio was heard.

Send the instrument to a Tektronix Service Center for repair.

Reseat the DIMM Acquisition memory module in the socket. If the problem persists, send the instrument to a Tektronix Service Center for repair.

Send the instrument to a Tektronix Service Center for repair.

If 28 V is not present at the rear-panel BNC connector, check the +28 V at the test point on the power conversion board. If the 28 V is not present, replace the power conversion board. If the +28 V is present on the power conversion board, send the instrument to a Tektronix Service Center for repair.

Verify that audio is not muted and level is set properly using Windows Volume control. If this does not correct the problem, send the instrument to a Tektronix Service Center for repair.

Troubleshooting

Table 12: ADC board diagnostic error messages

Test Error message Recommended action

ADC board ID Veriﬁcation

ADC board FPGA Load Test

ADC board Register R/W Test

ADC board LVDS Test

ADC Free Run Trigger Test

Pattern Test

ADC Board Not Found in slot 1. Send the instrument to a Tektronix Service Center for repair.

Bad FPGA ﬁle path. The ﬁle was not found in the directory.

The Main FPGA load failed. Send the instrument to a Tektronix Service Center for repair.

The Buffer FPGA load failed. Send the instrument to a Tektronix Service Center for repair.

DCM N ot locked. Send the instrument to a Tektronix Service Center for repair.

ADC R/W test FAILED. Send the instrument to a Tektronix Service Center for repair.

ADC LVDS test FAILED. Send the instrument to a Tektronix Service Center for repair.

ADC Free Run Trigger Test FAILED.

Unexpected data at offset X. Send the instrument to a Tektronix Service Center for repair.ADC board Acq

Trigger timeout occurred.

Send the instrument to a Tektronix Service Center for repair.

SPECMONB Series Service Manual 31

Troubleshooting

Table 12: ADC board diagnostic error messages (cont.)

Test Error message Recommended action

ADC board Dither Test

ADC board Narrow Band CW Acquisition Test

ADC board LF Acquisition Test

ADC board WB IF Acquisition Tes

Dither amplitude test - Failed

Dither frequency test - Failed

ADC Over range. Signal too strong. Run signal path test. If the signal path test passes

Signal below -50 dBm. Verify that the IF cable from the RF deck to the ADC board IF

No signal found in acquired spectrum.

ADC Overrange Signal too strong. Run signal path test. If the signal path test passes

Signal below -50 dBm. Verify that the IF cable from the RF deck to the ADC board IF

No signal found in acquired spectrum.

ADC Overrange Signal too strong. Run signal path test. If the signal path test passes

Signal below -50 dBm. Verify that the IF cable from the RF deck to the ADC board IF

No signal found in acquired spectrum.

Send the instrument to a Tektronix Service Center for repair.

and this test fails, send the instrument to a Tektronix Service Center for repair.

connector is ﬁrmly connected. Repeat the test, if the problem persists, send the instrument to a Tektronix Service Center for repair.

Verify Normalization source is functional by running the Signal Path test. If that test passes and this test still fails, send the i nstrument to a Tektronix Service Center for repair.

and this test fails, send the instrument to a Tektronix Service Center for repair.

connector is ﬁrmly connected. Repeat the test, if the problem persists, send the instrument to a Tektronix Service Center for repair.

Verify Normalization source is functional by running the Signal Path test. If that test passes and this test still fails, send the i nstrument to a Tektronix Service Center for repair.

and this test fails, send the instrument to a Tektronix Service Center for repair.

connector is ﬁrmly connected. Repeat the test, if the problem persists, send the instrument to a Tektronix Service Center for repair.

Verify Normalization source is functional by running the Signal Path test. If that test passes and this test still fails, send the i nstrument to a Tektronix Service Center for repair.

able 13: DPSA board diagnostic error messages

est

DPSA ID Veriﬁcation

DPSA FPGA Load Test

rror message

DPSA Board ID Veriﬁcation Failed. If ID was not found or a board other than the DPSA Board w as found,

Bad DPSA FPGA ﬁle path. The ﬁle was not found in the directory.

DPSA FPGA Load Failed. Replace the RTT/DPSA board. If the problem persists, send the

DCM Not locked. Replace the RTT/DPSA board. If the problem persists, send the

ecommended action

Version/ID is nonfunctional. Replace the RTT/DPSA Board.

Reinstall the product software.

instrument to a Tektronix Service Center for repair.

32 SPECMONB Series Service Manual

Troubleshooting

Table 13: DPSA board diagnostic error messages (cont.)

Test Error message Recommended action

DPSA Register R/W Test

DPSA Frame Transfer Test

DPSA LVDS Test The DPSA LVDS test failed. Replace the RTT/DPSA board. If the problem persists, send the

DPSA board FM/AM Audio Test

14: RF Interface board diagnostic error messages

Table

Read/Write test failed (returns read and write values).

CT Board QDR C ontrol Failure. Replace the RTT/DPSA board. If the problem persists, send the

FPGA File not found. Reinstall the product software.

FPGA Load Failed. Replace the RTT/DPSA board. If the problem persists, send the

Frame data test failed when looking for incrementing pattern.

No audio was heard.

Replace the RTT/DPSA board. If the problem persists, send the instrument to a Tektronix Service Center for repair.

instrument to a Tektronix Service Center for repair.

Replace the RTT/DPSA board. If the problem persists, send the instrument to a Tektronix Service Center for repair.

instrument to a Tektronix Service Center for repair.

Replace the RTT/DPSA board. If the problem persists, send the instrument to a Tektronix Service Center for repair.

Test Error

terface ID Test

RF In

RF Interface FPGA Load Test

RF In

FPGA Load failed. Replace the RF interface board.

message

terface Board not found.

mended action

Recom

he PPC load test. This will rerun hardware discovery. If error

Run t persists, replace the RF interface board.

SPECMONB Series Service Manual 33

Troubleshooting

Table 14: RF Interface board diagnostic error messages (cont.)

Test Error message Recommended action

RF Interface Voltage/Current test

The 30 Volt supply is over voltage.

The 30 Volt supply is under voltage.

The 8 Volt supply is over voltage.

The 8 Volt supply is under voltage.

The 2.5 Volt supply is over voltage.

The 2.5 Volt supply is under voltage.

The 1.2 Volt supply is over voltage.

The 1.2 Volt supply is under voltage.

The –8 Volt supply is over voltage.

The –8 Volt supply is under voltage.

The 8VSB supply is over voltage.

The 8VSB supply is under voltage.

Replace the Power Conversion board. If the problem persists, replace the RF Interface board. If the problem persists, replace the power supply. If the problem persists, send the instrument to a Tektronix Service Center for repair.

le 15: LO1 module diagnostic error messages

Tab

Tes

L01 ID Test

L01 FPGA Load Test

L01 Register R/W

est

or message

Err

ard not found.

FPGA Load failed. Send the instrument to a Tektronix Service Center for repair.

Read /Write test failed. Send the instrument to a Tektronix Service Center for repair.

ommended action

Rec

n the PPC load test. This will r erun hardware discovery. If error

Ru persists, send the instrument to a Tektronix Service Center for repair.

34 SPECMONB Series Service Manual

Table 15: LO1 module diagnostic error messages (cont.)

Test Error message Recommended action

L01 Voltage/Current Test

Sum Loop Error voltage exceeds High threshold

Sum Loop Error voltage exceeds Low threshold

YTO Loop Error voltage exceeds High threshold

YTO Loop Error voltage exceeds Low threshold

Yig loop is unlocked.

Sum loop is unlocked. Send the instrument to a Tektronix Service Center for repair.

15 V supply voltage is over/under voltage.

12 V supply voltage is over/under voltage.

8 V supply voltage is over/under voltage.

5 V supply voltage is over/under voltage.

3.3 V supply voltage is over/under voltage.

L01 is over temp. Warning only.

Warning only.

Send the instrument to a Tektronix Service Center for repair.

Run the RF Interface ADC test to verify a power supply problem. Check the Digital interface board power supply status LEDs. (See Table 9.)

Troubleshooting

able 16: LO2/Reference oscillator diagnostic error messages

est

O2 ID Test

LO2 FPGA Load Test

L02 Register R/W Test

rror message

oard not found.

FPGA Load failed. Send the instrument to a Tektronix Service Center for repair.

Read /Write test failed. Send the instrument to a Tektronix Service Center for repair.

ecommended action

un the PPC load test. This will rerun hardware discovery. If error

R persists, send the instrument to a Tektronix Service Center for repair.

SPECMONB Series Service Manual 35

Troubleshooting

Table 16: LO2/Reference oscillator diagnostic error messages (cont.)

Test Error message Recommended action

L02 Voltage/Current Test

LO2 Phaselock check

RF Converter ID Test

RF Converter FPGA Load Test

26 V supply voltage is over/under voltage

9 V supply voltage is over/under voltage

6 V supply voltage is over/under voltage

5 V supply voltage is over/under voltage

3.3 V supply voltage is over/under voltage

–9 V supply voltage is over/under voltage

L02 is over temp Warning only.

LO2 will not phase locked Send the instrument to a Tektronix Service Center for repair.

Board not found. Run the PP C load test. This will rerun hardware discovery. If error

FPGA Load failed. Send the instrument to a Tektronix Service Center for repair.

Replace the Power conversion board. If the problem persists, replace the RF interface board. If the problem persists, replace the power supply. If the problem persists, send the instrument to a Tektronix Service Center for repair.

persists, send the instrument to a Tektronix Service Center for repair.

36 SPECMONB Series Service Manual

Table 16: LO2/Reference oscillator diagnostic error messages (cont.)

Test Error message Recommended action

RF Converter Voltage/Current test

Signal Path Test

15 V Supply Over/Under Voltage. Replace the Power conversion board. If the problem persists, replace

the RF interface board. If the problem persists, replace the power supply. If the problem persists, send the instrument to a Tektronix Service Center for repair.

8 V Supply Over/Under Voltage. Replace the Power conversion board. If the problem persists, replace

the RF interface board. If the problem persists, replace the power supply. If the problem persists, send the instrument to a Tektronix Service Center for repair.

2.5 V Supply Over/Under Voltage. Replace the Power conversion board. If the problem persists, replace the RF interface board. If the problem persists, replace the power supply. If the problem persists, send the instrument to a Tektronix Service Center for repair.

1.2 V Supply Over/Under Voltage. Replace the Power conversion board. If the problem persists, replace the RF interface board. If the problem persists, replace the power supply. If the problem persists, send the instrument to a Tektronix Service Center for repair.

–8 V Supply Over/Under Voltage. Replace the Power conversion board. If the problem persists, replace

the RF interface board. If the problem persists, replace the power supply. If the problem persists, send the instrument to a Tektronix Service Center for repair.

RF Atten test

10dB RF Atten signal path test Failed.

2nd IF Atten test

2nd IF 10dB Atten signal path Failed.

2nd IF Amp test

2nd IF Amp gain path Failed.

Preamp test

Preamp signal path FAILED

LF Attenuator test

LF 20dB LF Attenuator Failed.

LF Amp test

LF Amp signal path test Failed.

LF ADC test

RF Converter to LF ADC path Failed.

NB ADC test

RF Converter to NB ADC path Failed.

SAW ﬁlter test

1MHz saw ﬁlter test Failed.

Send the instrument to a Tektronix Service Center for repair.

Send the instrument to a Tektronix Service Center for r epair.

Send the instrument to a Tektronix Service Center for repair.

Troubleshooting

SPECMONB Series Service Manual 37

Troubleshooting

Table 16: LO2/Reference oscillator diagnostic error messages (cont.)

Test Error message Recommended action

Step Attenuator test Step Attenuator Failed. Send the instrument to a Tektronix Service Center for repair.

IF Attenuator Test The IF attenuator Failed.

Preamp TestTest The Preamp Failed

Send the instrument to a Tektronix Service Center for repair.

Table 17:

Test Error mes

Front Panel Test

Front panel diagnostic error messages

Front Pa

sage

nel LCD test failed.

nel Button test failed.

Recommen

Replace

the LCD display.

the front panel keypad.

ded action

38 SPECMONB Series Service Manual

Replaceable parts

This section contains a list of the replaceable modules for the instrument. Use this list to identify and order replacement parts.

Parts ordering information

Replacement parts are available through your local Tektronix ﬁeld ofﬁce or representative.

Changes to Tektronix products are sometimes made to accommodate improved components as they become available and to give you the beneﬁt of the latest improvements. Therefore, when ordering parts, it is important to include the followin

If you order a part that has been replaced with a different or improved part, your local Tektronix ﬁeld ofﬁce or representative will contact you concerning any change in part number.

ginformationinyourorder:

Part number

Instrument type or model number

Instrument serial number

Instrument modiﬁcation n umber, if applicable

SPECMONB Series Service Manual 39

Replaceable parts

Module servicing

Modules can be s your local Tektronix service center or representative for repair assistance.

Module exchange. In some cases you may exchange your module for a remanufactured module. These modules cost signiﬁcantly less than new modules and meet the same factory speciﬁcations. For more information about the module exch contact a Tektronix sales ofﬁce or distributor; see the Tektronix Web site (www.tektronix.com) for a list of ofﬁces.

Module repair and return. You may ship your module to us for repair, after which we will return it to you.

New modules. You may purchase replacement modules in the same way as othe r replacement parts.

erviced by selecting one of the following three options. Contact

ange program, call 1-800-833-9200. Outside North America,

40 SPECMONB Series Service Manual

Using the Replaceable parts list

This section contains a list of the mechanical and/or electrical components that are replaceable for the instrument. Use this list to identify and order replacement parts. The following table describes each column in the parts list.

Column Column name Description

2 Tektronix part number

3 and 4

Figure & index number Items in this section are referenced by ﬁgure and index numbers to the exploded view

illustrations that follow.

Use this part number when ordering replacement parts from Tektronix.

Serial number Column three lists the serial number at which the part was ﬁrst effective. Column

s the serial number at which the part was discontinued. No entry means that

four list the part is usable for all serial numbers.

Qty The quantity of parts used.

Name & description An item name is separated from the description by a colon (:). Because of space

limitations, an item name may sometimes appear as incomplete. Use the U.S. Federal

Catalog handbook H6-1 for further item name identiﬁcation.

Replaceable parts

Abbreviations

viations conform to American National Standard ANSI Y1.1-1972.

Abbre

SPECMONB Series Service Manual 41

Replaceable parts

Table 18: Exter

nal parts

Tektronix Fig. & index number

5--1 200-5163-02 1

-2 367-0528-00 1

-3 407-4887-00 1

-4 211-1265-00 2

-5

-6 407-5530-02 2

-7

-8 211-1230-00 4

-9 348-1648-00 4

-10 211-0720-00 4

-11 200-514

-12 211-10

-13 200-51

-14 200-5

-15 211-1

-16 101-0

-17

-18 200-4519-00 1

part

number

367-0542-00 2

212-0650-00 4

333-

333-4677-00 1

9-00

50-00

73-00

196-01

224-00

152-00

4619-01

Serial no. effective

Serial no. discont'd Qty Name & description

COVER; TOP COSMETIC, ALUM

(See cover at

HANDLE, CARR

BRACKET; HAN

SCREW, MACH

** COVER ATT

HANDLE ASS

BRACKET, M

SCREW, MAC

SCREW; 10

** END COV

FOOT; REA

SCR, ASS

SPECMON3B, SPECMON6B

COVER; TOP, INTERNAL; SAFETY CONTROLLED

SCREW, MACHINE; 6-32 X 0.312 L, PNH, STEEL, ZINC FINISH, T15

COVER; BOTTOM, INTERNAL; SAFETY CONTROLLED

COVER; BOTTOM COSMETIC; SAFETY CONTROLLED

SCREW, 6-32 X 0.375L, PNH, BLACK, T15, NYLOC

TRIM, FRONT; TRIM ACQUISITION

COSMETIC FRONT ASSY; FRONT PANEL AND ACQUISITION TRIM

SPECMON3B, SPECMON6B

COSMETIC FRONT ASSY; FRONT PANEL AND ACQUISITION TRIM

SPE

COV

tached parts below.)

YING; DUAL DUROMETER MOLDED

DLE BASE, PC/ABS ALLOY

INE, 8-32 X 1.000L PNH, BLACK OXIDE, T20, NYLOK, STEEL

ACHED PARTS**

Y, CARRYING; AL, SS, BLACK

OUNTING; CARRYING HANDLE

HINE; 10-32 X 0.437, FLH, 100 DEG, SST PSVT, POZ

-32X.500 SOC CAP,18-8 ZINC PLATED STEEL

ER ATTACHED PARTS**

R W/CORD WRAP, THERMO PLASTIC; SAFETY CONTROLLED

EM WSHR; 6-32 X 0.500, PNH, STEEL, ZINC FINISH, T15 TORX DR, MACHINE

CMON26B

ER, FRONT; PC ABS,17.420L X 8.670W X 2.000TH,TEK BLUE

42 SPECMONB Series Service Manual

Replaceable parts

Figure 5: External parts

SPECMONB Series Service Manual 43

Replaceable parts

Table 19: Displ

ay and front panel

Tektronix Fig. & index number

6--1 650-5583-xx 1

-2 259-0155-01 1

-3 407-5504-00 1

-4 174-5807-00 1

-5

-6 119-7550-00 1

-7

-8 878-0414-xx 1

-9 211-1050-00 16

-10 174-5014-00 1

-11 174-5086-00 1

-12 174-5087-00 1

-13 348-197

-14 407-55

-15 211-09

-16 814-0

-17 878-0

-18 174-5101-00 1

-19 174-5080-00 1

-20 878-0417-00 1

-21 878-0749-00 1

-22 260-2903-00 1

-23 333-4618-00 1

-24 366-A056-01 1

part

number

119-7537-00 1

407-5695-xx 1

Serial no. effective

9-00

49-00

50-00

207-00

814-00

Serial no. discont'd Qty Name & description

MODULE ASSY; DISPLAY WITH 119755000 LCD

FLEX CIRCUIT; POWER SWITCH, W/LED

BRACKET, DISPLAY FRONT; SAFETY CONTROLLED

CABLE, ASSEMBLY (DISPLAY BACKLIGHT)

TOUCH SCREEN ASSEMBLY, 10.4 IN, RESISTIVE, 5-WIRE, W/GASKETS

DISPLAY MODULE; LCD; 1024 X 768; 10.4 INCHES DIAGONAL, TFT, LED BACK LIGHT

BRACKET, DISPLAY

CIRCUIT BD ASSY; INTERCONNECT DISPLAY ADAPTER BRD

SCREW,MACHINE;6-32X0.312L,PNH,STEEL,ZINCFINISH,T15

CABLE ASSY,SP;DISPLAY DATA,FLAT FLEX

CA ASSY, SP; IDC, RIBBON, DISP ADAPT TO DIG INTERF, 2MM, 2X10

SPECMON

CA ASSY,

SPECMON3B, SPECMON6B

GASKET, SET DISPLAY

BRACKET; DISPLAY, MOUNTING

SCREW; 6-32 X 0.25,TORX,STL

PANEL ASSEMBLY; FRONT

CIRCUIT BRD ASSY; RSA ENCODER

SPECMON26B

CA ASSY, SP; IDC, RIBBON, AUDIO COM Express PC TO DIG INTERF, 2X5

CA ASSY, SP; IDC, RIBBON, FRT PANEL TO DIG INTF, 2X10

CIRCUIT BD ASSY; USB I/O

CIRCUIT BD ASSY; FRONT PANEL CONTROL

SWITCH, KEYPAD FRONT PANEL

FRONT SUBPANEL ASSEMBLY

KNOB; GENERAL PURPOSE

3B, SPECMON6B

SP; IDC, RIBBON, DISP ADAPT TO DIG INTERF, 2MM, 2X15

44 SPECMONB Series Service Manual

Replaceable parts

Figure 6: Display and front panel

SPECMONB Series Service Manual 45

Replaceable parts

Table 20: Modul

Tektronix Fig. & index number

7-1

-2 407-5770-xx 1

-3 211-1050-00 10

-4 039-0210-00 1

-5

-6 214-5257-xx 1

-7

-8 253-0513–xx 1

-9 214-5355-xx 1

-10 119-7683-00 1 FAN, 70MM X 70MM X 15MM, 12V

-11 211-134

-12 863-08

-13 407-53

-14 436-0

-15 863-0

-16 211-0

-17 200-

-18 174-

-19 174-

-20 407

-21 174

part

number

850-0253-xx 1

878-0949-xx 1

253-0515–xx 1

253-0514–xx 1

-5181-00

-5213-xx

6-00

91-00

58-00

435-00

955-00

450-00

5317-00

5106-01

6418-00

Serial no. effective

Serial no. discont'd Qty Name & description

SUBASSY; CARRIER BRD ASSY,8780949XX WITH COM-E (ESM-QM77),BCM,MODULE ONLY

SPECMON3B, SPECMON6B

CIRCUIT BOARD; PC CARRIER

SPECMON26B

BRACKET, COM EXPRESS CARRIER

SCREW, MACHINE; 6-32 X 0.312 L, PNH, STEEL, ZINC FINISH, T15

PROCESSOR MODULE; PCIE, COM-E

THERMAL INTERFACE MATERIAL PHASE CHANGE, 20MM SQ.

SPACER, COPPER

THERMAL INTERFACE MATERIAL GAP PAD, 0.5MM THICK, 30MMSQ

THERMAL INTERFACE MATERIAL GAP PAD, 0.5MM, 20MM SQ

HEATSINK, ACTIVE, COM-EXPRESS BCM EMS-QM77

SCREW, MACHINE, PANHEAD M3 X 0.5 X 26MM, PHILLIPS

CIRCUIT BD ASSY; RTT/DPSA, PB-FREE

BRACKET, HEATSINK FAN

FAN ASSEMBLY

CKT BD SUBASSY; REAL TIME IQ AND LOG VIDEO OUTPUT

SCREW, MACHINE; 2.5MM X 0.45 X 6MM, PNH, STEEL, ZINC PLATED, T8 TORX

COVER, REAR PANEL, OPTION (REAL TIME I AND Q)

CA ASSY, SP;IDC, TW FLAT, I&Q OUTPUT TO REAR PANEL

CABLE, COAX BNC-ST TO SMB-RA

BRACKET, GROUNDING (LAN AND PS/2)

CABLE ASSY,RIBBON; STATIC GROUND,1X2,RT I/Q TO REAR PANEL

46 SPECMONB Series Service Manual

Replaceable parts

Figure 7: Modules

SPECMONB Series Service Manual 47

Replaceable parts

Table 21: Power

supply and removable hard drive

Tektronix Fig. & index number

8--1 119-6986-06 1

-2 211-0718-00 6

-3 407-5477-00 1

-4 441-2619-00 1

-5

-6 407-5473-00 1

-7

-8 211-1050-00 6

-9 407-5337-00 1

-10 174-5349-00 1

-11 174-5089-00 1

-12 174-5090-00 1

-13 174-5101-00 1

-14 174-51

-15 863-0592-01 1

-16 211-0510-00 8

-17 200-5135-00 1

-18 174-5227-00 1

-19 211-0380-00 2

-20 335-3331-xx 1

part

number

850-0290-00 1

441-2620-01 1

00-00

Serial no. effective

Serial no. discont'd Qty Name & description

POWER SUPPLY; AC-DC;460W;+3.3V 40A, +5V 34A, +12V 25A, -12V 1A, +5VSB 2A;90-264VAC

SCREW, MACHI

BRACKET; POW

CHASSIS; DR

DISK DRIVE A

BRACKET; HA

CHASSIS; D

SCREW, MAC

HDD CABLE

CABLE ASS

CA ASSY, P

CA ASSY,

CA ASSY, SAFETY CONTROLLED

CA ASSY, PWR; IDC, RIBBON, PWR CONV TO BULKHEAD, 2X25, 0.100 CTR; SAFETY CONTROLLED

CIRCUIT BD ASSY; POWER CONVERSION

SCREW, MACHINE; 6-32 X 0.375, PNH, ZINC PLATED STEEL, T15

COVER, POWER SUPPLY

CABLE ASSY;LINE FILTER; SAFETY CONTROLLED

SCREW, MACHINE; 4-40 X 0.375, FLH, STEEL, ZINC FINISH, T8

MARKER, ID, SPECMON-B REMOVABLE DRIVE

, 47-440HZ

NE; 6-32 X 0.312, FLH100, STEEL, ZINC FINISH, T-10 TORX

ER SUPPLY; SAFETY CONTROLLED

IVE TRAY

SSY; PROGM 119825000, SS REMOVEABLE HARD DRIVE

RD DRIVE, 2.5 INCH REMOVABLE

RIVE BAY FRAME TOP

HINE; 6-32 X 0.312 L, PNH, STEEL, ZINC FINISH, T15

BRACKET

Y; SATA COMBO, HARD DRIVE CABLE WITH LATCH

WR; DISCRETE, DIG INTERFACE, 2X10, 18AWG; SAFETY CONTROLLED

PWR; DISCRETE, DIG INTERFACE, 2X6, 20AWG; SAFETY CONTROLLED

SP; IDC, RIBBON, AUDIO COM Express PC TO DIG INTERF, 2X5, 2MM;

48 SPECMONB Series Service Manual

Replaceable parts

Figure 8: Power supply and removable hard drive

SPECMONB Series Service Manual 49

Replaceable parts

Table 22: Upper

deck fans, misc. cables

Tektronix Fig. & index number

9-1 211-1050-00 16

-2

-3 174-5212-0

-4 174-5201-00 1

-5

-6 407-5055-00 1

-7

-8 407-5480-00 1

-9 174-5066-00 2

part

number

436-0424-00 1

119-7182-00 2

407-5062-00 1

213-1061-00 2

119-7172-00 1

Serial no. effective

Serial no. discont'd Qty Name & description

SCREW,MACHINE; 6-32 X 0.312 L,PNH, STEEL, ZINC FINISH, T10, TORX

ASSY,FAN TRAY; WITH FANS MOUNTED (UPPER DECK); SAFETY CONTROLLED

FAN, TUBEAXIAL; 12VDC, 0.40A, 4.80W, 2500RPM, 100.6CFM, 120MM, LEADS W/CONN; SAFETY CONTR

BRACKET; FA 436-0424-00)

CA ASSY,SP; IDC, RIBBON, CONTROL LINES, BULKHEAD TO RF INTERFACE, 2X7,0.100 CTR SAFETY CONTROLLED

CA ASSY,SP; IDC, RIBBON, GPIB, DIG INTF TO REAR PANEL; SAFETY CONTROLLED

JACKSCREW; 6-32 EXT THD, M3.5 X 0.6-6 INT THD, 410 SS

BRACKET ASSY; SPEAKER

SPEAKER; DYNAMIC; 28MM DIA, 8 OHM, 600-7KHZ, MYLAR CONE, MG ELECT 288BB20 W

BRACKET

CA ASSY,

OLLED (SUBPARTS OF 436-0424-00)

N MOUNTING,UPPER DECK; SAFETY CONTROLLED (SUBPART OF

ITH 28 INCH CABLE

; BNC ADAPTER

RF,FLEX-COAX; FRONT PANEL ACQ

50 SPECMONB Series Service Manual

Replaceable parts

Figure 9: Upper deck fans, misc. cables

SPECMONB Series Service Manual 51

Tektronix SPECMON3B, SPECMON6B, SPECMON26B Service

Specifications and Main Features

Frequently Asked Questions

User Manual