xx
AWG5000B and AWG5000C Series
ZZZ
Arbitrary Waveform Generators
Service Manual
Warning
The servicing instructions ar
only. To avoid personal injury, do not perform any servicing
unless you are qualified to do s
prior to performing service
e for use by qualified personnel
o. Refer to all safety summaries
www.tektronix.com
P077030402*
*
077-0304-02
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 . Bo x 50 0
Beaverto
USA
For product information, sales, service, and technical support:
n, OR 97077
In North America, call 1-800-833-9200.
World wide, visit www.tektronix.com to find contacts in your area.
Warranty
Tektronix warrants that this product will be free from defects in materials and workmanship for a period of one (1)
year from the date of shipment. If any such product proves defective during this warranty period, Tektronix, at its
option, either will repair the defective product without charge for parts and labor, or will provide a replacement
in exchange for the defective product. Parts, modules and replacement products used by Tektronix for warranty
work may be n
the property of Tektronix.
ew or reconditioned to like new performance. All replaced parts, modules and products become
In order to o
the warranty period and make suitable arrangements for the performance of service. Customer shall be responsible
for packaging and shipping the defective product to the service center designated by Tektronix, with shipping
charges p repaid. Tektronix shall pay for the return of the product to Customer if the shipment is to a location within
the country in which the Tektronix service center is located. Customer shall be responsible for paying all shipping
charges, duties, taxes, and any other charges for products returned to any other locations.
This warranty shall not apply to any defect, failure or damage caused by improper use or improper or inadequate
maintenance and care. Tektronix shall not be obligated to furnish service under this warranty a) to repair damage
result
b) to repair damage resulting from improper use or connection to incompatible equipment; c) to repair any damage
or malfunction caused by the use of non-Tektronix supplies; or d) to service a product that has been modified or
integrated with other products when the effect of such modification or integration increases the time or difficulty
of servicing the product.
THIS WARRANTY IS GIVEN BY TEKTRONIX WITH RESPECT TO THE PRODUCT IN LIEU OF ANY
OTHER WARRANTIES, EXPRESS OR IMPLIED. TEKTRONIX AND ITS VENDORS DISCLAIM ANY
IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
TRONIX' RESPONSIBILITY TO REPAIR OR REPLACE DEFECTIVE PRODUCTS IS THE SOLE
TEK
AND EXCLUSIVE REMEDY PROVIDED TO THE CUSTOMER FOR BREACH OF THIS WARRANTY.
TEKTRONIX AND ITS VENDORS WILL NOT BE LIABLE FOR ANY INDIRECT, SPECIAL, INCIDENTAL,
OR CONSEQUENTIAL DAMAGES IRRESPECTIVE OF WHETHER TEKTRONIX OR THE VENDOR HAS
ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES.
[W2 – 15AUG04]
btain service under this warranty, Customer must notify Tektronix of the defect before the expiration of
ing from attempts by personnel other than Tektronix representatives to install, repair or service the product;
Table of Contents
General Safety Summary ......................................................................................... vi
Service Safety Summary.................................. ................................ ....................... viii
Environmental Considerations ................................................................................... ix
Preface .............................................................................................................. xi
Manual Structure.............................................................................................. xi
Manual Conventions...................... ................................ .................................. .. xi
Operating Information ............................................................................................. 1
Operating Information......................................................................................... 1
Theory of Operation... ................................ ................................ ............................. 3
Overview .......... ................................ ................................ ............................. 3
Module Overviews ............................................................................................ 6
Adjustment Procedures ........................................................................................... 11
Adjustment Interval........................................................................................... 11
Adjustment After Repair ......................... ................................ ............................ 11
Required Equipment........................ ................................ ................................ .. 12
Adjustment Overview .................... ................................ ................................ .... 12
Calibration Procedure .......... .................................. ................................ ............ 14
Maintenance........................................................................................................ 17
Preparation................. .................................. ................................ .................. 17
Preventing ESD ............................................................................................... 17
Inspection and Cleaning.................................. ................................ .................... 18
Removal and Installation Procedures.................................... .................................. ...... 22
Preparation................. .................................. ................................ .................. 22
Summary of Procedures........ .................................. ................................ ............ 23
Required Equipment........................ ................................ ................................ .. 24
Procedures for External Modules ........................................................................... 25
Procedures for Internal Modules (Upper) (AWG5000C Series)......................................... 35
Procedures for Internal Modules (Upper) (AWG5000B Series)......................................... 45
Procedures for Internal Modules (Lower).................................................................. 57
Troubleshooting.................................................................................................... 68
Required Equipment........................ ................................ ................................ .. 68
Fault Isolation Procedure .................................................................................... 68
Instrument Diagnostics..................... ................................ ................................ .. 75
Calibration Error.............................................................................................. 82
Hardware Error................................................................................................ 85
After Repair ............... ................................ ................................ .................... 87
Returning the Instrument for Service ....................................................................... 88
Replaceable Parts.................................................................................................. 89
Parts Ordering Information .................................................................................. 89
AWG5000B and AWG5000C Series Service Manual i
Table of Contents
Using the Repla
ceable Parts List............................................................................ 90
ii AWG5000B and AWG5000C Series Service Manual
List of Figures
Figure 1: AWG5000C Series block diagram .................................................................... 4
Figure 2: AWG5000B Series block diagram .................................................................... 5
Figure 3: Service UI menu ....................................................................................... 13
Figure 4: 10 MHz Reference clock calibration test hookup ................ ................................ .. 14
Figure 5: 10 MHz Reference Calibration dialog box.............. ................................ ............ 15
Figure 6: Disassembly procedures for external modules and internal modules (top) ...................... 23
Figure 7: Disassembly procedures for internal modules (bottom) ........................................... 24
Figure 8: Handle, snaps, cosmetic covers, and front-trim unit removal....... .............................. 26
Figure 9: EMI cover removal .................... ................................ ................................ 28
Figure 10: Fan tray unit removal ................................................................................ 30
Figure 11: Disassembly of front-panel assembly (AWG5000C Series) ................... .................. 32
Figure 12: Disassembly of front-panel assembly (AWG5000B Series)..................................... 34
Figure 13: Location of the cable ties ............................................................................ 35
Figure 14: Drive module removal (AWG5000C Series) ...... ................................ ................ 37
Figure 15: Multi-Input/Output removal (AWG5000C Series)................................................ 38
Figure 16: Processor board removal (AWG5000C Series) ..... ................................ .............. 40
Figure 17: Secondary power supply, power supply, and RFI filter removal ........................ ........ 43
Figure 18: Power board removal ................................................................................ 44
Figure 19: Location of the cable ties ............................................................................ 45
Figure 20: Drive module removal (AWG5000B) .............. .................................. .............. 47
Figure 21: Removing the clamp cover .......................................................................... 48
Figure 22: Multi-Input/Output and Display Adapter board removal (AWG5000B Series) . . ... ... . .. . ... 49
Figure 23: Processor board removal (AWG5000B Series) ..... ................................ .............. 52
Figure 24: Secondary power supply, power supply, and RFI filter removal ........................ ........ 55
Figure 25: Power board removal ................................................................................ 56
Figure 26: Front Connector board, CLK1G module, AWG1G board, and OUT1G boards removal
(4-channel model) ...... ................................ ................................ ...................... 58
Figure 27: Disassembly of the CLK1G module................................................................ 60
Figure 28: Cable post on the AWG1G board (2 CH).......................................................... 61
Figure 29: Cable post on the AWG1G board (4 CH).......................................................... 62
Figure 30: Location of the cable ties ............................................................................ 64
Figure 31: Location of the cable ties ............................................................................ 66
Figure 32: Primary troubleshooting tree (1) ...................... ................................ .............. 69
Figure 33: Primary troubleshooting tree (2) ...................... ................................ .............. 70
Figure 34: PWR board test points (J104)....................................................................... 71
Figure 35: Secondary power supply test points (CN51 and CN61).......................................... 72
Figure 36: AWG1G board test points (J2000).................................................................. 73
Figure 37: OUT1G board test points (J7000) .................. .................................. .............. 74
Figure 38: Diagnostics dialog box............................................................................... 75
AWG5000B and AWG5000C Series Service Manual iii
Table of Contents
Figure 39: Cali
Figure 40: Cosmetics.............................................................................................. 92
Figure 41: EMI covers............................................................................................ 93
Figure 42: AWG5000C Series Chassis assembly.............................................................. 94
Figure 43: AWG5000B Series Chassis assembly.............................................................. 95
Figure 44: AWG5000C Series front-panel assembly.......................................................... 97
Figure 45: A
Figure 46: AWG5000C Series drive modules.................................. .............................. 101
Figure 47: AWG5000B Series drive modules.................................. .............................. 103
Figure 48: AWG5000C Series Processor module...... ................................ ...................... 105
Figure 49: AWG5000B Series Processor module...... ................................ ...................... 107
Figure 50: Power supply assembly............................................................................ 109
Figure 5
Figure 52: AWG5000B Series PCI/power interface module ....................... ........................ 114
Figure 53: Fan tray assembly ........................ ................................ .......................... 115
Figure 54: USB module......................... .................................. .............................. 116
Figure 55: AWG1G/CLK1G/OUT1G modules .......................... .................................. .. 118
Figure 56: CLK1G module............................... ................................ ...................... 119
Figu
Figure 58: BNC bracket ...... .................................. ................................ ................ 123
Figure 59: Rear connectors..................................................................................... 125
1: AWG5000C Series PCI/power interface module ................... ............................ 111
re 57: AWG1G module...................... ................................ .............................. 121
bration dialog box ............................................................................... 82
WG5000B Series front-panel assembly .......................................................... 99
iv AWG5000B and AWG5000C Series Service Manual
List of Tables
Table 1: Adjustments required for module replaced........... ................................ ................ 11
Table 2: Tes
Table 3: External inspection checklist....................... .................................. .................. 19
Table 4: Internal inspection checklist . ................................ .................................. ........ 21
Table 5: Required tools for module removal and reinstall.................................................... 24
Table 6: Test points voltage (J104) .................... ................................ .......................... 71
Table 7: Test points voltage (CN51 and CN61)............ ................................ .................... 72
Table 8: T
Table 9: Test points voltage (J7000 or J6000).................... ................................ .............. 74
Table 10: Diagnostics error....................................................................................... 76
Table 11: Calibration error ................... .................................. ................................ .. 83
Table 12: Hardware error... .................................. ................................ .................... 85
t equipment .................. ................................ ................................ ........ 12
est points voltage (J2000)....... ................................ ................................ ...... 73
Table of Contents
AWG5000B and AWG5000C Series Service Manual v
General Safety Summary
General Safet
To Av oid Fi
re or Personal
Injury
ySummary
Review the fo
this product or any products connected to it.
To avoid pot
Only qualified personnel should perform service procedures.
Use proper
certified for the country of use.
Ground th
of the power cord. To avoid electric shock, the grounding conductor must be
connected to earth ground. Before making connections to the input or output
terminals of the product, ensure that the product is properly grounded.
Observe all terminal ratings. To a v o i d 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.
llowing safety precautions to avoid injury and prevent damage to
ential hazards, use this product only as specified.
power cord. Use only the power cord specified for this product and
eproduct. This product is grounded through the grounding conductor
Power disconnect. The power cord disconnects the product from the power source.
Donotblockthepowercord;itmustremain accessible to the user at all times.
Do not operate without covers. Do not operate this product with covers or panels
removed.
Do not operate with suspected failures. If you suspect that there is damage to this
product, have it inspected by qualified service personnel.
Avoid exposed circuitry. Do not touch exposed connections and components when
power is present.
Do not operate in wet/damp conditions.
Do not operate in an explosive atmosphere.
Keep product surfaces clean and dry.
Provide proper ventilation. Refer to the manual's installation instructions for details
on installing the product so it has proper ventilation.
vi AWG5000B and AWG5000C Series Service Manual
General Safety Summary
TermsinThisManual
Symbols and Terms on the
Product
These terms may
WAR N ING. 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.
These terms may appear on the product:
DANGER in
the marking.
WAR NI N G
read the marking.
CAUTIO
The following symbol(s) may appear on the product:
appear in this manual:
dicates an injury hazard immediately accessible as you read
indicates an injury hazard not immediately accessible as you
N indicates a hazard to property including the product.
AWG5000B and AWG5000C Series Service Manual vii
Service Safety Summary
Service Safet
y Summary
Only qualifie
Safety Summary and the General Safety Summary before performing any service
procedures.
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 instrument power, then
disconnect the power cord from the mains power.
Use Care When Servicing With Power On. Dangerous voltages or currents may
exist in
disconnect test leads before removing protective panels, soldering, or replacing
components.
To avoid electric shock, do not touch exposed connections.
d personnel should pe rform service procedures. Read this Service
this product. Disconnect power, remove battery (if applicable), and
viii AWG5000B and AWG5000C Series Service Manual
Environmental Considerations
This section provides information about the environmental impact of the product.
Product End-of-Life
Handling
Observe the following guidelines when recycling an instrument or component:
Equipment Recycling. Production of this equipment required the extraction and
use of natural resources. The equipment may contain substances that could be
harmful to
the environment or human health if improperly handled at the product’s
end of life. In order to avoid release of such substances into the environment and
to reduce the use of natural resources, we encourage you to recycle this product
in an appropriate system that will ensure that most of the materials are reused or
recycled appropriately.
This sym
requirements according to Directive 2002/96/EC on waste electrical and
electronic equipment (WEEE). For information about recycling options, check
the Supp
bol indicates that this product complies with the European Union’s
ort/Service section of the Tektronix Web site (www.tektronix.com).
Mercury Notification. This product uses an LCD backlight lamp that contains
mercury. Disposal may be regulated due to environmental considerations.
e contact your local authorities or, within the United States, the Electronics
Pleas
Industries Alliance (www.eiae.org) for disposal or recycling information.
1
Perchlorate Materials. This product contains one or more type CR lithium
coin cell batteries. According to the state of California, CR lithium coin
cells are classified as perchlorate materials and require special handling. See
.dtsc.ca.gov/hazardouswaste/perchlorate for additional information.
www
1
The mercury notification applies only to the AWG5000B Series instruments.
striction of Hazardous
Re
Substances
This product has been classified as Monitoring and Control equipment, and is
outside the scope of the 2002/95/EC RoHS Directive.
AWG5000B and AWG5000C Series Service Manual ix
Environmental Considerations
x AWG5000B and AWG5000C Series Service Manual
Preface
Manual Structure
This manual contains service information for your instrument. Read this preface
to learn how this manual is structured, the conventions it uses, and where to find
additional s
YoushouldalsoreadtheGeneralandService safety summaries before servicing
the product
upplemental information related to servicing this product.
.
Manual Conventions
Modules
Replaceable Parts
This manu
topics. Be sure to read the introductions to all procedures. These introductions
provide important information needed to do the service correctly, safely, and
efficiently.
This manual uses certain conventions that you should become familiar with
before starting service.
Throughout this manual, any replaceable component, assembly, or part is referred
to by the term module. A module is composed of electrical and mechanical
assemblies, circuit boards, interconnecting cables, and user-accessible controls.
This manual refers to any field-replaceable assembly or mechanical part
specifically by its name or generically as a replaceable part. In general, a
replaceable part is any circuit board or assembly, such as the hard disk drive, or a
mechanical part, such as the I/O port connectors, that is listed in the replaceable
rts list of this manual.
pa
al is divided into sections, which are made up of related subordina te
Safety
AWG5000B and AWG5000C Series Service Manual xi
Symbols and terms related to safety appear in the General Safety Summary found
at the beginning of this manual.
Preface
xii AWG5000B and AWG5000C Series Service Manual
Operating Information
Operating Inf
ormation
For information on installing, operating, and networking the instrument, refer to
the AWG5000 and AWG7000 Series Arbitrary Waveform Generators Quick Start
User Manual
instrument, and on the Tektronix Web site (www.tektronix.com/manuals).
. This manual is available on the Document CD that came with your
AWG5000B and AWG5000C Series Service Manual 1
Operating Information
2 AWG5000B and AWG5000C Series Service Manual
Theory of O peration
This section describes the electrical operation of the AWG5000B and AWG5000C
Series Arbitrary Waveform Generators.
Overview
The Arbitrary Waveform Generators provide various models with different
frequency
major sections: the platform section and generator section. The platform section
is common to each model.
capabilities and numbers of channels. Each model consists of two
Block Diagram of the
System
The Arbit
components for a PC. The instrument operates with the Microsoft Windows
operating system. The following figure shows the system level block diagram.
rary Waveform Generators are based on the μATX CPU board and
AWG5000B and AWG5000C Series Service Manual 3
Theory of Operation
Figure 1: AWG5000C Series block diagram
4 AWG5000B and AWG5000C Series Service Manual
Theory of Operation
gure 2: AWG5000B Series block diagram
Fi
AWG5000B and AWG5000C Series Service Manual 5
Theory of Operation
Module Overvi
Front Panel (FP) Board
Display Board
ews
A Microsoft Windows processor system is the primary controller of the
instrument. The instrument features an XGA resolution flat-panel display, a
transparent
instrument functions. You can also make complete use of the instrument with a
mouse and a keyboard.
Push-butt
microcontroller, which sends the button and knob change information to the μAT X
board via a USB path. The FP board consists of the following blocks:
USB controller (Cypress EZ-USB FX1)
FPGA (Al
Key switch matrix
LED indicators (Tri-Color and Mono-Color)
The Display board supports interconnection between the μAT X bo ar d an d F P
board. Two internal USB ports come from the μATX board. One USB connects to
a touch panel controller. The other connects to a microcontroller on the FP board.
Connectors related to the LCD are also included. The Display board consists of
ollowing blocks:
the f
touch screen, and a front panel with direct a ccess to commonly used
on switches on the Front Panel (FP) board are read by an embedded
tera Cyclone)
Touch-panel controller
Rotary encoder (signal goes to the FP board)
Back light controller
Connector to LCD
6 AWG5000B and AWG5000C Series Service Manual
Theory of Operation
Multi-Input/Output (MIO)
Board
The MIO board co
(PCI port for AWG5000B series) from various devices that communicate with
the μATX system. The devices include the display system, GPIB, TekLink, and
data flow (PCIF) path to the waveform generator system. An EEROM on this
board stores instrument settings and calibration data. The MIO board consists of
the following blocks:
PCI controller
GPIB controller
LCD display controller (AWG5000B Series)
NOTE. For AWG5000B Series instruments with serial numbers below B020000,
the ATI Mobility-MI circuit was included in the MIO board. For AWG5000B
Series instruments with serial numbers B020000 and above, a separate display
adapter
For AWG5000C Series instrume nts, the Processor board provides the video
displa
board (ADD2) performs this function.)
y output.
PCI target adapter
PLD140 (Xilinx FPGA)
ordinates the flow of data through the Windows PCIe port
Display Adapter (ADD2)
Board (AWG5000B Series)
Front Switch (FSW) Board
Front Connector (FCON)
Board
EEPROM for calibration data storage
TekLink interface
ADD2 board contains LCD display control circuitry that processes video
The
signals from the MIO board.
e Display Adapter board is used in AWG5000B Series instruments serial
Th
numbered B020000 and above. This circuitry formerly resided on the MIO board.
The FSW board provides interconnection between the Standby switch and μATX
oard. It includes an LED driver.
b
The FCON board provides front-panel connections of the USB ports and the
DC output. It includes common mode filters that suppress EMI radiation on the
USB signal.
AWG5000B and AWG5000C Series Service Manual 7
Theory of Operation
Display Pan el
Touch Panel
Processor (μATX) Board
The active-mat
display has a 1024 x 768 resolution and brightness is set to full intensity.
For AWG5000C Series instruments, the display is controlled by the Processor
board. For AWG5000B Series instruments, the display is controlled by the MIO
board (or the display adapter board on AWG5000B Series instruments with serial
numbers B020000 and above).
The touch information from the touch screen is processed by Windows drivers,
actively p lacing the pointer at the touched location. Actions from the mouse
and the touch panel are interchangeable, and treated alike by the user interface
software. The AccuTouch resistive touch screen uses a glass panel with a uniform
resistive coating. A thick polyester coversheet is tightly suspended over the top of
a glass substrate, separated by small, transparent insulating dots. The coversheet
has a hard, durable coating on the outer side and a conductive coating on the inner
side. The controller is located on the LCDA board.
The μATX board provides standard Windows functionality and I/O port interfaces
on the rear panel. This includes RS-232, Parallel, and Ethernet ports, as well as
four USB ports, plus two USB2.0 ports located in the lower right front corner
of the instrument. The μATX board receives input from the front panel and
touch panel, and implements the appropriate changes. For AWG5000C Series
instruments, video display data is transferred through the LVDS co
AWG5000B Series instruments, video display data is transferred through PCI bus
interface. The hard drive is connected to the μATX board through the SATA
interface, and the CD/DVD is connected to the Windows system through the
IDE parallel interface.
rix LCD display is fully controlled by Windows drivers. The
nnector. For
Power Supply
Secondary Power Supply
Fans
The CD/DVD drive is connected to the Windows via an interface connector on
the μATX board. AWG5000C Series models connect using the SATA interface.
AWG5000B Series m odels connect using the IDE parallel interface.
The power supply is a switching AC to DC converter. It automatically detects the
line voltage over the range of 90 to 264 VAC. It supplies power to all the circuitry
in the instrument. No switch completely disconnects the line power from the
instrument. The ON/STBY switch controls the power to the instrument through
the μATX board circuitry. When in the “power off” condition, there is still a low
power standby current to allow the system to monitor the ON/STBY switch.
The secondary power supply is a switching AC to DC converter. It automatically
detects the line voltage over the range of 85 VAC to 265 VAC.
Three fans on the side of the instrument provide forced air cooling. The fans are
controlled by the fan speed control circuit on the PWR board and are regulated by
monitoring the temperature at the circuitry.
8 AWG5000B and AWG5000C Series Service Manual
Theory of Operation
Power (PWR2) Board
CLK1G Board
AWG1G Board
The PWR2 board p
MIO board, OUT1G board, and AWG1G board. All the power comes from the
power supply and secondary power supply modules. The fan control circuit has
a thermal sensor on this board. DC voltage to the fans is controlled relative to
the sensed temperature. DC-DC converters are included for generating different
DC voltages.
The CLK1G board provides a 600 MHz to 1200 MHz clock to the AWG1G board.
The clock input accepts 600 MHz to 1200 MHz clock signals from an external
signal source. The reference clock input accepts 10 MHz to 800 MHz reference
clock sig
used for synchronizing frequency between two or more instruments. The CLK1G
board consists of the following blocks:
The AWG1G board generates arbitrary waveforms based on the waveform
memory and the sequence memory. There are two types of PLDs (Xilinx FPGA)
on the board. One is an AWG controller called PLD121 which interfaces to/from
the MIO board. The other is a memory controller called PLD120 which generates
wav
memory is included in the memory controller PLD. The AWG1G board consists
of the following blocks:
nals from an external signal source. The 10 MHz reference output can be
VCO (600 MHz to 1200 MHz)
Fractio
10.0 MHz TCXO (reference oscillator)
External reference input
eform patterns. Waveform data is stored in ZBT type SRAMs. The sequence
nal-N PLL
rovides DC power to the fans, HDD, CD Drive, μATX bo a r d,
1.2 GS/s DAC (AD9736)
hannels 8:1 MUX (TEK0015 ASIC)
8c
PLD120 (Xilinx Virtex-4 FPGA) as a memory controller
PLD121 (Xilinx Virtex-4 FPGA) as an AWG controller
ZBT type SRAM for the waveform memory
28 bits digital output driver
Marker output driver
Trigger and event inputs
DC output
DC-DC converter
AWG5000B and AWG5000C Series Service Manual 9
Theory of Operation
OUT1G Board
The OUT1G board
Amplitude, filter, offset, add input, and On/Off controls are added to the analog
outputs. The OUT1G board consists of the following blocks:
Analog differential output amplifier
Selectable
Selectable attenuator
Add input from external
Control D/A for offset setting
Level monitor A/D
Relay driver
Control
ler PLD
provides analog outputs to the front-panel connector.
low-pass filter
10 AWG5000B and AWG5000C Series Service Manual
Adjustment Procedures
This section contains information about instrument adjustment. Only qualified
personnel should perform adjustment procedures. Read the Service Safety
Summary and the General Safety Summary before performing any service
procedures.
Adjustment Interval
Adjustment After Repair
NOTE. Befor
waveform generator at least 20 minutes in an ambient temperature between 2 0 °C
and 30 °C. Adjustments performed before warm-up or outside this temperature
range may result in poor performance.
If the instrument fails performance tests, then adjustment may be required.
Perform
technical reference manual for your instrument.
If periodic calibration is one of your requirements, a g
performance and make adjustments (only if needed) every 2000 hours of operation
or once a year if the instrument is used infrequently.
After removal and replacement of a module due to electrical failure, you must
perform the adjustment procedure if the module you replaced is marked “yes”
in the following table. (See Table 1.)
e performing adjustment procedures, you must warm up the arbitrary
ance tests are located in the specifications and performance verification
eneral rule is to verify
Table 1: Adjustments required for module replaced
Module replaced Adjustment required
Hard disk assembly No
Fan tray unit No
Front panel assembly No
Drive bay module No
MIO board
Display Adapter board No
Processor module No
Power supply No
Power board No
CLK1G module
AWG1G board
OUT1G board
AWG5000B and AWG5000C Series Service Manual 11
Yes
Yes
Yes
Yes
Adjustment Procedures
Required Equipment
You will need the following equipment:
Table 2: Test equipment
Description Minimum requirements Recommended equipment Quantity
Frequency counter Accuracy: within ± 0.01 ppm Agilent 53181A 1 ea
50 Ω BNC cable
Tektronix part number
012-0057-01
1ea
Adjustment Overview
The adjustment procedure contains three adjustment items. Before performing
adjustme
least 20 minutes in an ambient temperature between 20 °C and 30 °C.
nt procedures, you must warm up the arbitrary waveform generator at
Enable the Service Menu
You mus t
this:
1. Power o
2. Select the System menu from the menu bar, and then select Service Mode...
3. The following dialog box is displayed. Enter the password “1185”.
4. The following service UI menu is displayed:
enable the Service menu to perform the adjustment procedure. To do
ntheinstrument.
12 AWG5000B and AWG5000C Series Service Manual
Adjustment Procedures
e 3: Service UI menu
Figur
ft half of the window with the title Calibration is the calibration part of the
The le
window. You can perform the calibrations either all in one step or individually.
However, since the calibration sequence is predefined, follow the sequence from
the top. You must finish a calibration item listed on the upper part of the screen
before performing the lower part of the items. Some items may be grayed out,
depending on your instrument option configurations.
dividual Calibrations
In
Execute All Calibrations
AWG5000B and AWG5000C Series Service Manual 13
To perform individual calibrations, click the calibration buttons, starting with
10 MHz Reference..., and the corresponding calibrations are executed.
To perform all calibrations in one step, click Execute All Calibrations and all
calibrations are executed in order starting from the top.
Adjustment Procedures
Saving the Calibration
Results to EEPROM
Calibration Procedure
10 MHz R
eference Clock
Calibration
When the calibr
(regardless of the item, all results are saved to the EEPROM on the MIO board),
the flag under Is Calibrated will be set to TRUE. If the calibration was successful,
the Status field will display PASS. If the calibration failed, FAIL will be displayed.
There are two types of calibration: Self calibration and Manual calibration.
Self calibration - The instrument performs the calibration item and ends
automatically.
Manual calibration - This calibration item requires external devices and
manual data input. (See Table 2 on page 12.)
A warning message is displayed if you c lick a calibration button without waiting
for 20 minutes after the instrument powered on. Click the Cancel button and
allow at least 20 minutes for the instrument to warm up.
This procedure adjusts the built-in TCXO oscillator frequency for the 10 MHz
Reference Output.
Required equipment Prerequisites
One frequency counter
One 50 Ω BNC cable
ation has been performed and the results are saved to the EEPROM
1. Install the test hookup and preset the instrument controls:
a. Use the 50 Ω BNC cable to connect the 10 MHz Reference Output
connector (on the AWG instrument rear panel) to the channel 1 connector
on the frequency counter. (See Figure 4.)
Figure 4: 10 MHz Reference clock calibration test hookup
14 AWG5000B and AWG5000C Series Service Manual
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