Tektronix AWG7061B, AWG7062B, AWG7122B, AWG7121B, AWG7122C Service
...
xx
AWG7000B and AWG7000C Series
ZZZ
Arbitrary Waveform Generators
Service Manual
www.tektronix.com
P077030503*
*
077-0305-03
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 r eserved.
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.
Worl d wide , vis i t 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 prepaid. 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 .......................................................................................... v
Service Safety Summary.................................. ................................ ....................... vii
Environmental Considerations .................................................................................. viii
Preface .............................................................................................................. ix
Manual Conventions........................ ................................ ................................ .. ix
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 .......... ................................ .................................. ............ 15
Maintenance........................................................................................................ 29
Preparation............. .................................. ................................ ...................... 29
Preventing ESD ............................................................................................... 29
Inspection and Cleaning.............................. .................................. ...................... 30
Removal and Installation Procedures.................................... ................................ ........ 34
Preparation............. .................................. ................................ ...................... 34
Summary of Procedures.............................. .................................. ...................... 35
Required Equipment...................... ................................ .................................. .. 36
Disconnecting and Connecting the SMP Cable ........................................................... 37
Procedures for External Modules ........................................................................... 38
Procedures for Internal Modules (Upper) (AWG7000C Series)......................................... 49
Procedures for Internal Modules (Upper) (AWG7000B Series)......................................... 57
Procedures for Internal Modules (Lower).................................................................. 67
Troubleshooting.................................................................................................... 80
Required Equipment...................... ................................ .................................. .. 80
Fault Isolation Procedure .................................................................................... 80
Instrument Diagnostics..................... ................................ ................................ .. 85
Calibration Error .............................................................................................. 92
Hardware Error.............................................................................................. 101
After Repair ..................... ................................ .................................. .......... 103
Returning the Instrument for Service..................................................................... 103
Replaceable Parts................................................................................................ 105
Parts Ordering Information ................................................................................ 105
Using the Replaceable Parts List.......................................................................... 106
AWG7000B and AWG7000C Series Service Manual i
Table of Contents
List of Figure
Figure 1: AWG7000C Series block diagram .................................................................... 4
Figure 2: AWG7000B Series block diagram .................................................................... 5
Figure 3: AwgService UI window ............................................................................... 13
Figure 4: 10 MHz Reference calibration initial test hookup. ... ... . .. . ... ... ... . ... ... ... .. .. . ... ... ... . ... .. 15
Figure 5: 10 MHz Reference Calibration setup window...................... ................................ 16
Figure 6: Inter-channel skew calibration initial hookup .. . ... ... ... ... . ... ... ... . .. . ... ... ... . ... ... ... . ... .. 18
Figure 7: Inter-Channel Skew Calibration setup window..................................................... 19
Figure 8: Interleave calibration ini
Figure 9: Interleave Calibration window ....... .................................. .............................. 23
Figure 10: Magic timing margin check hookup................................................................ 26
Figure 11: Magic Timing Check dialog box.................................................................... 26
Figure 12: Example of good margin and proper timing..................... ................................ .. 27
Figure 13: Example of bad waveform in magic timing margin check....................................... 27
Figure 14: Disassembly procedures for external modules and internal modules (top) ... ... . . .. . ... ... . .. 35
Figure 15: Disassembly procedures for internal modules (bottom).. .................................. ...... 36
Figure 16: Disconnecting and connecting the SMP cable .............................. ...................... 37
Figure 17: Handle, snaps, cosmetic covers, and front-trim unit removal ................................... 39
Figure 18: EMI cover removal....... ................................ .................................. .......... 42
Figure 19: Fan tray unit removal .......................... ................................ ...................... 44
Figure 20: Disassembly of front-panel assembly (AWG7000C Series) ........................... .......... 46
Figure 21: Disassembly of front-panel assembly (AWG7000B Series) ........................... .......... 48
Figure 22: Drive module removal (AWG7000C Series) .......... ................................ ............ 50
Figure 23: Multi-Input/Output board removal (AWG7000C Series) .............. .......................... 51
Figure 24: Processor module removal (AWG7000C Series) ............................... .................. 53
Figure 25: Power Supply and RFI filter removal (AWG7000C Series) ................. .................... 55
Figure 26: Power board removal (AWG7000C Series) ......................... .............................. 56
Figure 27: Drive mo
Figure 28: Multi-Input/Output and Display Adapter board removal (AWG7000B Series) . ... ... . ... ... . 60
Figure 29: Processor module removal (AWG7000B Series) ............................... .................. 63
Figure 30: Power Supply and RFI filter removal (AWG7000B Series) ................. .................... 65
Figure 31: Power board removal (AWG7000B Series) ......................... .............................. 66
Figure 32: Front Connector board, CLK12G module, relay unit, and AWG12G board removal ... ... .. 68
Figure 33: Disassembly of the CLK12G module .............................................................. 70
Figure 34: Relay unit cable connection for option 02 . ................................ ........................ 71
Figure 35: Relay unit cable connection for option 06 . ................................ ........................ 72
Figure 36: Cable ties .............................................................................................. 73
Figure 37: Tie mount clip......................................................................................... 73
Figure 38: Primary troubleshooting tree (1).............................. ................................ ...... 81
s
tial hookup ................................................................. 22
dule removal (AWG7000B Series) .......... ................................ ............ 58
ii AW G7000B and AWG7000C Series Service Manual
Table of Contents
Figure 39: Prim
Figure 40: PWR board test points ....... ................................ .................................. ...... 83
Figure 41: AWG12G board test points.............................. ................................ ............ 84
Figure 42: Diagnostics dialog box............................................................................... 85
Figure 43: Calibration dialog box ............................................................................... 92
Figure 44: Cosmetics............................................................................................ 108
Figure 45: E
Figure 46: AWG7000C Series chassis assembly............. ................................ ................ 110
Figure 47: AWG7000B Series chassis assembly............. ................................ ................ 111
Figure 48: AWG7000C Series front-panel assembly........................................................ 113
Figure 49: AWG7000B Series front-panel assembly........................................................ 115
Figure 50: AWG7000C Series drive modules.............. ................................ .................. 117
Figure 5
Figure 52: AWG7000C Series Processor module............................................................ 121
Figure 53: AWG7000B Series processor module.......................................... .................. 123
Figure 54: AWG7000C Series power supply assembly..................................................... 125
Figure 55: AWG7000B Series power supply assembly..................................................... 127
Figure 56: AWG7000C Series PCI/power interface module ............................................... 129
Figu
Figure 58: Fan tray assembly .............. ................................ .................................. .. 132
Figure 59: USB module......................................................................................... 133
Figure 60: AWG12G/CLK12G/OUT10G modules................................ .......................... 136
Figure 61: CLK12G module ................................................................................... 138
Figure 62: AWG12G module ................................ .................................. ................ 140
Fi
Figure 64: Relay unit............................................................................................ 144
Figure 65: Rear connectors................. .................................. .................................. 146
1: AWG7000B Series drive module. .................................. .............................. 119
re 57: AWG7000B Series PCI/power interface module ............................................... 131
gure 63: SMA bracket .................... ................................ .................................. .. 142
ary troubleshooting tree (2).............. ................................ ...................... 82
MI Covers ......................................................................................... 109
AWG7000B and AWG7000C Series Service Manual iii
Table of Contents
List of Tables
Table 1: Adjustments required for module replaced........... .................................. .............. 11
Table 2: Tes
Table 3: External inspection checklist........................... ................................ ................ 31
Table 4: Internal inspection checklist ....... ................................ ................................ .... 33
Table 5: Tools required for module removal and reinstall .. ................................ .................. 36
Table 6: Power supply voltages.................................................................................. 83
Table 7: PWR board voltages .................................................................................... 84
Table 8: D
Table 9: Calibration error codes ................. ................................ ................................ 92
Table 10: Hardware error codes........................ ................................ ........................ 101
Table 11: Replaceable parts list – cosmetics ........... ................................ ...................... 107
Table 12: Replaceable parts list – EMI covers ......... .................................. .................... 109
Table 13: Replaceable parts list – AWG7000C Series chassis assembly.......... ........................ 110
Table
Table 15: Replaceable parts list – AWG7000C Series front-panel assembly ......... .................... 112
Table 16: Replaceable parts list – AWG7000B Series front-panel assembly ......... .................... 114
Table 17: Replaceable parts list – AWG7000C Series drive modules ....................... .............. 116
Table 18: Replaceable parts list – AWG7000B Series drive module .......................... ............ 118
Table 19: Replaceable parts list – AWG7000C Series Processor module................................. 120
ble 20: Replaceable parts list – AWG7000B Series processor module ................................. 122
Ta
Table 21: Replaceable parts list – AWG7000C series power supply assembly........................... 124
Table 22: Replaceable parts list – AWG7000B series power supply assembly........................... 126
Table 23: Replaceable parts list – AWG7000C Series PCI/power interface module ...... .............. 128
Table 24: Replaceable parts list – AWG7000B Series PCI/power interface module ...... .............. 130
Table 25: Replaceable parts list – fan tray assembly .. ................................ ...................... 132
Table 26: Replaceable parts list – USB module.................................... .......................... 133
Table 27: Replaceable Parts List – AWG12G/CLK12G/OUT10G modules........................ ...... 134
Table 28: Replaceable parts list – CLK12G module .................... ................................ .... 137
Table 29: Replaceable parts list – AWG12G module........................................................ 139
Table 30: Replaceable parts list – SMA bracket ............................................................. 141
Table 31: Replaceable parts list – relay unit.................................................................. 143
Table 32: Replaceable parts list – rear connectors........................................................... 145
t equipment .......................................................................................... 12
iagnostics error codes................................................................................. 86
14: Replaceable parts list – AWG7000B Series chassis assembly.................... .............. 111
iv AW G7000B and AWG7000C Series Service Manual
General Safety Summary
General Safet
To Avoid 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 avoid fire or shock hazard, observe all ratings
and markings on the product. Consult the product manual for further ratings
information before making connections to the product.
Do not apply a potential to any terminal, including the common terminal, that
exceeds the maximum rating of that terminal.
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
e product. This product is grounded through the grounding conductor
Power disconnect. The power cord disconnects the product from the power source.
Do not block the power cord; it must remain 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.
AWG7000B and AWG7000C Series Service Manual v
General Safety Summary
TermsinThisManual
Symbols and Terms on the
Product
These terms may
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.
These terms may appear on the product:
DANGER in
the marking.
WAR NI NG
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.
vi AWG7000B and AWG7000C Series Service Manual
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.
UseCareWhenServicingWithPowerOn. Dangerousvoltagesorcurrentsmay
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 perform service procedures. Read this Service
this product. Disconnect power, remove battery (if applicable), and
AWG7000B and AWG7000C Series Service Manual vii
Environmental Considerations
Environmenta
Product End-of-Life
Handling
l Considerations
This section
Observe the following guidelines when recycling an instrument or component:
Equipment R
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
recycle
Mercur
mercury. Disposal may b e regulated due to environmental considerations.
Please contact your local a uthorities or, within the United States, the Electronics
Industries Alliance (www.eiae.org) for disposal or recycling information.
provides information about the environmental impact of the product.
ecycling. Production of this equipment required the extraction and
d appropriately.
This symbol indicates that this product complies with the European Union’s
requirements according to Directive 2002/96/EC on waste electrical and
nic equipment (WEEE). For information about recycling options, check
electro
the S upport/Service section of the Tektronix Web site (www.tektronix.com).
yNotification. This product uses an LCD backlight lamp that contains
1
Restriction of Hazardous
bstances
Su
Perchlorate Materials. This product contains one or more type CR lithium
n cell batteries. According to the state of California, CR lithium coin
coi
cells are classified as perchlorate materials and require special handling. See
www.dtsc.ca.gov/hazardouswaste/perchlorate for additional information.
1
The mercury notification applies only to the AWG7000B Series instruments.
This product has been classified as Monitoring and Control equipment, and is
tside the scope of the 2002/95/EC RoHS Directive.
ou
viii AW G7000B and AWG7000C Series Service Manual
Preface
Manual Conventions
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.
.
Modules
Replaceable Parts
Safety
This manu
before starting service.
Throughout this manual, any replaceable component, assembly, or part is referred
to by the
assemblies, circuit boards, interconnecting cables, and user-accessible controls.
This manual refers to any field-replaceable assembly or mechanical part
speci
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
parts list of this manual.
Symbols and terms related to safety appear in the Service Safety Summary at
the beginning of this manual.
al uses certain conventions that you should become familiar with
term module. A module is composed of electrical and mechanical
fically by its name or generically as a replaceable part. In general, a
AWG7000B and AWG7000C Series Service Manual ix
Preface
x AWG7000B and AWG7000C Series Service Manual
Operating Information
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
AWG7000B and AWG7000C Series Service Manual 1
Operating Information
2 AWG7000B and AWG7000C Series Service Manual
Theory of Operation
This section describes the electrical operation of the AWG7000B and AWG7000C
Series Arbitrary Waveform Generators.
Overview
The Arbitrary Waveform Generators provide various models with different
frequency
the platform and generator. The platform is common to each model.
and numbers of channels. Each model consists of two major sections:
Block Diagram of the
System
The Arbitrary Waveform Generators are based on the μATX CPU board and
componen
operating system. The following figures shows the system-level block diagrams.
ts for a PC. The instrument operates with the Microsoft Window
AWG7000B and AWG7000C Series Service Manual 3
Theory of Operation
Figure 1: AWG7000C Series block diagram
4 AWG7000B and AWG7000C Series Service Manual
Theory of Operation
Figure 2: AWG7000B Series block diagram
AWG7000B and AWG7000C 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 μATX bo a r d a n 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 access 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 AWG7000B and AWG7000C Series Service Manual
Theory of Operation
Multi-Input/Output (MIO)
Board
The MIO board co
port for AWG7000B 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 the instrument settings and calibration data. The MIO board consists of
the following blocks:
PCI controller
GPIB controller
Display controller
NOTE. For AWG7000B Series instruments with serial numbers below B020000,
the ATI Mobility-MI circuit was included in the MIO board. For AWG7000B
Series instruments with serial numbers B020000 and above, a separate display
adapter
For AWG7000C Series instruments, 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 (PCI
Display Adapter (ADD2)
Board (AWG7000B 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 with AWG7000B 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 μAT X
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.
AWG7000B and AWG7000C Series Service Manual 7
Theory of Operation
Display Panel
Touch Panel
Processor (μATX) Board
The active-mat
display has a 1024 x 768 resolution and brightness is set to full intensity.
For AWG7000C S
board. For AWG7000B Series instruments, the display is controlled by the MIO
board (or the display adapter board on AWG7000B Series instruments with serial
numbers B020000 and above).
The touch information from the touch screen is processed by Windows drivers,
actively placing 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 o f
aglasss
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 μAT
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 AWG7000C Series
instruments, video display data is transferred through the LVDS connector. For
7000B Series instruments, video display data is transferred through PCI bus
AWG
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
eries instruments, t he display is controlled by the Processor
ubstrate, separated by small, transparent insulating dots. The coversheet
X board provides standard Windows functionality and I/O port interfaces
Power Supply
Fans
The CD/DVD drive is connected to the Windows via an interface connector on
the μATX board. AWG7000C Series models connect using the SATA interface.
AWG7000B Series models connect using the IDE parallel interface.
The power supply CVR460 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.
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 AWG7000B and AWG7000C Series Service Manual
Theory of Operation
Power (PWR) Board
CLK12G Board
AWG12G
Board
The PWR board pr
MIO board, and AWG12G board. All the power c omes from the CVR460 module.
The fan control circuit ha s 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 CLK12G board provides a 6 GHz to 12 GHz clock to the AWG12G board.
Two clock outputs go to the CH1 and CH2 DAC. The clock output to CH2 s hould
be terminated for 1 channel models. The clock input accepts 6 GHz to 12 GHz
clock signals from an external signal source. The reference clock input accepts
10 MHz to 8
10 MHz reference output can be used for synchronizing frequency between two or
more instruments. The CLK12G board consists of the following blocks:
YIG oscillator (6 GHz to 12 GHz)
Fractio
10.0 MHz TCXO (reference oscillator)
The AWG12G 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 PLD131, which interfaces to/from
the M
waveform patterns. Waveform data is stored in ZBT type SRAMs. The sequence
memory is included in the memory controller PLD. The AWG12G board consists
of the following blocks:
nal-N PLL
IO board. The other is a memory controller called PLD130 which generates
ovides DC power to the fans, HDD, CD Drive, μATX board,
00 MHz reference clock signals from a n external signal source. The
12 GS/s DAC (HFD205 ASIC)
8 channels 8:1 MUX (TEK0015 ASIC)
D230 (Xilinx Virtex-4 FPGA) as a memory controller
PL
PLD231 (Xilinx Virtex-4 FPGA) as an AWG controller
ZBT type SRAM for the waveform m emory
Inter-channel phase detector
Trigger and event inputs
DC Output
DC-DC converter (1.2 V and 2.5 V power supply)
Dynamic Jump input (AWG7000C Series)
AWG7000B and AWG7000C Series Service Manual 9
Theory of Operation
OUT10G1 Board for
Standard Models
OUT10G2 Board for Option
06 (and Option 02 for
AWG7000
B Series)
The OUT10G1 boa
connector. Amplitude, filter, offset, and On/Off controls are added to the analog
outputs. High/Low voltage and On/Off controls are added to the marker outputs.
The OUT10G1 board consists of the following blocks:
Analog output amplifier
Marker output driver
Selectable
Selectable attenuator
Voltage monitor
Controller PLD
The OUT10G2 board uses the same raw board as the OUT10G1 board. The
difference is that the OUT10G2 board has no analog output circuitry. The analog
signal path is on the relay module. The OUT10G2 board has an analog voltage
monitor. The OUT10G2 board consists of the following blocks:
Marker output driver
Voltage monitor
rd provides analog and marker outputs to the front-panel
low-pass filter
Relay Module (Option
06)(andOption02for
AWG7000B Series)
Coax switch driver
roller PLD
Cont
The relay module provides switches for analog outputs. With Option 06, the
relays switch the interleaving and the analog outputs on and off. An RF power
mbiner is used for mixing channel 1 and 2 signals. The output of the power
co
combiner goes to the Interleave output.
r Option 02, the relays switch the analog outputs on and off.
Fo
10 AW G7000B and AWG7000C 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 p erforming any service
procedures.
Adjustment Interval
Adjustment After Repair
NOTE. Befor
e performing adjustment procedures, you must warm up the arbitrary
waveform generator at least 20 minutes in an ambient temperature between 20 °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 (refer to the AWG7000 Series Arbitrary
Wav e for
m Generators Technical Reference Manual), adjustment may be required.
If periodic calibration is one of your requirements, a general rule is to verify
mance and make adjustments (if needed) every 2000 hours of operation (or
perfor
once a y ear 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.)
Table 1: Adjustments required for module replaced
Module replaced Adjustment required
Hard disk assembly No
n tray unit
Fa
Front panel assembly No
Drive bay module No
MIO board
isplay Adapter board
D
Processor module No
Power supply No
Power board No
CLK12G module
AWG12G board
OUT10G board
No
Y
N
Yes
Yes
Yes
es
o
AWG7000B and AWG7000C Series Service Manual 11
Adjustment Procedures
Required Equipment
You will need the following equipment:
Table 2: Test equipment
Description Minimum requirements Examples Quantity
Sampling oscilloscope Bandwidth: 20 GHz or higher Tektronix DSA8200 with 80E03
Oscilloscope Bandwidth: 1 GHz or higher Tektronix TDS5104B
Frequency counter Accuracy: within ± 0.01 ppm Agilent 53181A 1 ea
50 Ω BNC cable DC to 2 GHz
50 Ω SMA cable DC to 20 GHz
50 Ω SMA Termination DC to 18 GHz
SMA-BNC adapter SMA female to BNC male
50 Ω SMA Attenuator DC to 18 GHz, 12 dB
Tektronix part number
012-0482-00
Tensolite 1-3636-465-5236 2 ea
Tektronix part number
015-1022-01
Tektronix part number
015-0572-00
Hirose AT-112 2 ea
1ea
1ea
1ea
3ea
2ea
Adjustment Overview
Enable the Service Menu
The adjustment procedure contains up to ten adjustment items, depending on the
ument type and options. Before performing adjustment procedures, you must
instr
warm up the arbitrary waveform generator at least 20 minutes in an ambient
temperature between 20 °C and 30 °C.
You must enable the Service menu to perform the adjustment procedure. To do
this:
1. Power on the instrument.
lect the System menu from the menu bar, and then select Service Mode...
2. Se
3. The following dialog box is displayed. Enter the password “1185”.
12 AW G7000B and AWG7000C Series Service Manual
Adjustment Procedures
4. The AwgService
UI window appears. (See Figure 3.)
Figure 3: AwgService UI window
The left half of the window with the title Calibration is the calibration part of the
window. You can perform the calibrations either all in one step or individually.
ever, since the calibration sequence is predefined, follow the sequence from
How
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.
The Data Timing-Magic button is alw ays grayed out because it can be used only
in Factory Mode.
AWG7000B and AWG7000C Series Service Manual 13
Adjustment Procedures
Individual Calibrations
Execute All Calibrations
Saving the Calibration
Results to EEPROM
To perform indi
10MHz Reference..., and the corresponding calibrations are executed.
To perform all calibrations in one step, click Execute All Calibrations and all
calibration
the steps in the data timing calibration, restore and use the calibration constants
obtained by the ATS (Auto Test System) at the factory or during servicing. The
following procedures assume that this method will be used.
When the calibration has been performed and the results are saved to the EEPROM
(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 test equipment
and manual d ata input. (See Table 2 on page 12.)
A warning message is displayed if you click 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.
vidual calibrations, click the calibration buttons, starting with
s are executed in order starting from the top. Instead of performing all
14 AW G7000B and AWG7000C Series Service Manual
Adjustment Procedures
Calibration P
rocedure
Restoring the Calibration
Constants
10 MHz Reference
Calibration
Before starting the calibration procedure, you need to restore the calibration
constants that were obtained by ATS (Automatic Test System) at the factory or
the service c
Click the Copy Calibration Data from AWG12G to MIO button in the middle
right of the Service UI window.
The calibration data saved to the EEPROM on the AWG12G board during the ATS
calibration is restored to the EEPROM on the MIO board. The calibration data on
the MIO bo
This procedure adjusts the built-in TCXO oscillator frequency for the 10 MHz
Referen
Equipment required Prerequisites
One frequency counter
One 50 Ω BNC cable
1. Install the test hookup and preset the instrument controls:
enter.
ard EEPROM is used during the following calibration procedure.
ce Output.
20 minute warm-up at 20 °C to 30 °C
a. Connect a BNC cable from the 10 MHz Reference Output on the rear
panel of the arbitrary waveform generator to the CHANNEL 1 of the
uency counter. (See Figure 4.)
freq
Figure 4: 10 MHz Reference calibration initial test hookup
2. Set the frequency counter CHANNEL 1 Impedance to 50 Ω.
AWG7000B and AWG7000C Series Service Manual 15
Adjustment Procedures
3. Click the 10MHz
display the following setup window:
Figure 5: 10 MHz Reference Calibration setup window
4. Change the 10 MHz Reference value using the up/down button or the
front-panel rotary knob so that the frequency counter reading is within the
range of 10 MHz ±1 Hz.
5. Click Save to EEPROM to save the data to the EEPROM.
Reference... button in the AwgService UI window to
YIG Drive Current
Calibration
Clock Power Calibration
IPC Timing Calibration
6. Click Close to close the window.
This is a self calibration. The YIG for the internal clock source controls the
frequency by the main coil (tuning coil) and the FM coil currents. The sensitivity
differs between individual YIGs, this calibration is required to set the precise
frequency.
This is a s elf calibration. In the instrument, the clock power is need to be
controlled depending on the frequency so that the clock amplitude supplied from
the CLK12G board to the DAC has always the proper value. If you fail to perform
the calibration, the DAC does not work properly, and the AWG12G board may
t work properly.
no
This is a self calibration. The instrument features high-speed communication
called IPC (Inter PLD Communication) between the internal Memory Controller
and the Awg Controller. This calibration ensures the optimum timing to enable
the IPC in all frequency settings. Failing to perform this calibration may disable
access to the waveform memory and/or make the AWG board diagnostics cause
an error.
16 AW G7000B and AWG7000C Series Service Manual
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