Tektronix AWG7000B,AWG7000C Series User manual
xx
AWG7000B and AWG7000C Series
ZZZ
Arbitrary Waveform Generators
Service Manual
*P077030501*
077-0305-01
xx
AWG7000B and AWG7000C Series
ZZZ
Arbitrary Waveform Generators
Service Manual
www.tektronix.com
077-0305-01
Copyright © Tektronix. All rights reserved. Licensed software products are owned by Tektronix or its subsidiaries
or suppliers, and are protected by national copyright laws and international treaty provisions.
Tektronix products are covered by U.S. and foreign patents, issued and pending. Information in this publication
supersedes that in all previously published material. Specifications and price change privileges reserved.
TEKTRONIX and TEK are registered trademarks of Tektronix, Inc.
Contacting Tektronix
Tektronix, Inc.
14150 SW Karl Braun Drive
P.O . 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 , visi 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 TH E 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 Conventions........................................ .................................. ................ xi
Operating Information
Operating Information ........................................................................................... 1-1
Theory of Operation
Theory of Operation..... ................................ ................................ ......................... 2-1
Overview .............. ................................ ................................ ....................... 2-1
Module Overviews .......................................................................................... 2-4
Adjustment Procedures
Adjustment Procedures .......................................................................................... 3-1
Adjustment Interv
Adjustment After Repair ........................... ................................ ......................... 3-1
Required Equipment.................... ................................ ................................ ..... 3-2
Adjustment Overview...... ................................ ................................ ................. 3-2
Calibration Procedure .............. ................................ ................................ ......... 3-5
al.......................................................................................... 3-1
Maintenance
Maintenance....................................................................................................... 4-1
Preparation....................... ................................ ................................ ............. 4-1
Preventing ESD .............................................................................................. 4-1
Inspection and Cleaning...................................... .................................. ............. 4-2
Removal and Installation Procedures.......................................... ................................ . 4-6
Preparation....................... ................................ ................................ ............. 4-6
Summary of Procedures...................... .................................. ............................. 4-7
Required Equipment.................... ................................ ................................ ..... 4-8
Disconnecting and Conn
Procedures for External Modules ........................................................................ 4-10
Procedures for Internal Modules (Upper) (AWG7000C Series)...................................... 4-21
Procedures for Internal Modules (Upper) (AWG7000B Series)...................................... 4-29
Procedures for Internal Modules (Lower)............................................................... 4-39
AWG7000B and AWG7000C Series Service Manual i
ecting the SMP Cable .......................................................... 4-9
Table of Contents
Troubleshooti
Required Equipment....................................................................................... 4-52
Fault Isolation Procedure ...... ................................ .................................. ......... 4-52
Instrument Diagnostics..................... ................................ ............................... 4-57
Calibration Error ........................................................................................... 4-64
Hardware Error............................................................................................. 4-73
After Repai
Returning the Instrument for Service.................................................................... 4-75
ng................................ ................................ ................................ . 4-52
r ........... ................................ .................................. ................... 4-75
Replaceable Parts
Replaceable Parts.. .................................. ................................ ............................. 5-1
Parts Or
Using the Replaceable Parts List........................................................................... 5-2
dering Information................................................................................. 5-1
ii AWG7000B and AWG7000C Series Service Manual
List of Figures
Figure 2-1: AWG7000C Series block diagram................... ................................ ............. 2-2
Figure 2-2: AWG7000B Series block diagram................... ................................ ............. 2-3
Figure 3-1: AwgService UI window....... ................................ .................................. ... 3-3
Figure 3-2: 10 MHz Reference calibration initial test hookup . .. . ... ... ... . ... ... ... . . .. . ... ... ... .. .. . ... . 3-5
Figure 3-3: 10 MHz Reference Calibration setup window .................................................. 3-6
Figure 3-4: Inter-channel skew calibration initial hookup . . ... ... ... . . ... ... ... . . .. . ... ... ... . ... ... ... .. .. . 3-8
Figure 3-5: Inter-Channel Skew Calibration setup window ................................................. 3-9
Figure 3-6: Interleave calibration initial hookup.. ... ... ... . ... ... ... ... . .. . ... ... ... . . .. . ... ... ... . . .. . ... . 3-12
Figure 3-7: Interleave Calibration window. .................................. ............................... 3-13
Figure 3-8: Magic timing margin check hookup................................... ......................... 3-16
Figure 3-9: Magic Timing Check dialog box................................................................ 3-16
Figure 3-10: Example of good margin and proper timing ................................................. 3-17
Figure 3-11: Example of bad waveform in magic timing margin check .... ............................. 3-17
Figure 4-1: Disassembly procedures for external modules and internal modules (top) .. ... . ... ... ... . . . 4-7
Figure 4-2: Disassembly procedures for internal modules (bottom)........................................ 4-8
Figure 4-3: Disconnecting and connecting the SMP cable .................................................. 4-9
Figure 4-4: Handle, snaps, cosmetic covers, and front-trim unit removal .................. ............. 4-11
Figure 4-5: EMI cover removal............................................................................... 4-14
Figure 4-6: Fan tray unit removal . ................................ ................................ ........... 4-16
Figure 4-7: Disassembly of front-panel assembly (AWG7000C Series) ........ ......................... 4-18
Figure 4-8: Disassembly of front-panel assembly (AWG7000B Series) ........ ......................... 4-20
Figure 4-9: Drive module removal (AWG7000C Series).................................................. 4-22
Figure 4-10: Multi-Input/Output board removal (AWG7000C Series)................................... 4-23
Figure 4-11: Processor module removal (AWG7000C Series) ................. ........................... 4-25
Figure 4-12: Power Supply and RFI filter removal (AWG7000C Series)................................ 4-27
Figure 4-13: Power board removal (AWG7000C Series).................................................. 4-28
Figure 4-14: Drive module removal (AWG7000B Series)................................................. 4-30
Figure 4-15: Multi-Input/Output and Display Adapter board removal (AWG7000B Series).. ... .. ... 4-32
Figure 4-16: Processor module removal (AWG7000B Series)............................................ 4-35
Figure 4-17: Power Supply and RFI filter removal (AWG7000B Series)................................ 4-37
Figure 4-18: Power board removal (AWG7000B Series).................................................. 4-38
Figure 4-19: Front Connector board, CLK12G module, relay unit, and AWG12G board removal ... 4-40
Figure 4-20: Disassembly of the CLK12G module........................................ ................. 4-42
Figure 4-21: Relay unit cable connection for option 02............... ................................ ..... 4-43
Figure 4-22: Relay unit cable connection for option 06............... ................................ ..... 4-44
Figure 4-23: Cable ties......................................................................................... 4-45
Figure 4-24: Tie mount clip .......................... ................................ ......................... 4-45
Figure 4-25: Primary troubleshooting tree (1) .............................................................. 4-53
Figure 4-26: Primary troubleshooting tree (2) .............................................................. 4-54
AWG7000B and AWG7000C Series Service Manual iii
Table of Contents
Figure 4-27: PW
Figure 4-28: AWG12G board test points .................................................................... 4-56
Figure 4-29: Diagnostics dialog box .. ................................ ................................ ....... 4-58
Figure 4-30: Calibration dialog box .......................................................................... 4-64
Figure 5-1: Cosmetics....................... ................................ ................................ ..... 5-4
Figure 5-2: EMI Covers ......................................................................................... 5-5
Figure 5-3:
Figure 5-4: AWG7000B Series chassis assembly............................................................. 5-7
Figure 5-5: AWG7000C Series front-panel assembly............... ................................ ......... 5-9
Figure 5-6: AWG7000B Series front-panel assembly............... ................................ ....... 5-11
Figure 5-7: AWG7000C Series drive modules .............................................................. 5-13
Figure 5-8: AWG7000B Series drive module ............................................................... 5-15
Figure 5
Figure 5-10: AWG7000B Series processor module ........................................................ 5-19
Figure 5-11: AWG7000C Series power supply assembly.................................................. 5-21
Figure 5-12: AWG7000B Series power supply assembly..................................... ............. 5-23
Figure 5-13: AWG7000C Series PCI/power interface module............................................ 5-25
Figure 5-14: AWG7000B Series PCI/power interface module............................................ 5-27
Figu
Figure 5-16: USB module.. ................................ ................................ ................... 5-29
Figure 5-17: AWG12G/CLK12G/OUT10G modules ...................................................... 5-32
Figure 5-18: CLK12G module............................... ................................ ................. 5-34
Figure 5-19: AWG12G module ............................................................................... 5-36
Figure 5-20: SMA bracket..................................................................................... 5-38
Fi
Figure 5-22: Rear connectors ................................................................................. 5-42
-9: AWG7000C Series Processor module.......................................................... 5-17
re 5-15: Fan tray assembly ............................................................................... 5-28
gure 5-21: Relay unit ........................................................................................ 5-40
R board test points................. .................................. ....................... 4-55
AWG7000C Series chassis assembly............................................................. 5-6
iv AWG7000B and AWG7000C Series Service Manual
List of Tables
Table 3-1: Adjustments required for module replaced ....................................................... 3-1
Table 3-2 : T
Table 4-1: External inspection checklist ....................................................................... 4-3
Table 4-2: Internal inspection checklist........................... .................................. ........... 4-5
Table 4-3: Tools required for module removal and reinstall................................................. 4-8
Table 4-4: Power supply voltages ..................... .................................. ..................... 4-55
Table 4-5: PWR board voltages............................................................................... 4-56
Table 4-6
Table 4-7: Calibration error codes ............................................................................ 4-64
Table 4-8: Hardware error codes.............................................................................. 4-73
Table 5-1: Replaceable parts list – cosmetics ................................................................. 5-3
Table 5-2: Replaceable parts list – EMI covers .................. ................................ ............. 5-5
Table 5-3: Replaceable parts list – AWG7000C Series chassis assembly.................................. 5-6
Table
Table 5-5: Replaceable parts list – AWG7000C Series front-panel assembly ............................. 5-8
Table 5-6: Replaceable parts list – AWG7000B Series front-panel assembly ........................... 5-10
Table 5-7: Replaceable parts list – AWG7000C Series drive modules ................................... 5-12
Table 5-8: Replaceable parts list – AWG7000B Series drive module .................................... 5-14
Table 5-9: Replaceable parts list – AWG7000C Series Processor module.......................... ..... 5-16
ble 5-10: Replaceable parts list – AWG7000B Series processor module ............................. 5-18
Ta
Table 5-11: Replaceable parts list – AWG7000C series power supply assembly .................. ..... 5-20
Table 5-12: Replaceable parts list – AWG7000B series power supply assembly ....................... 5-22
Table 5-13: Replaceable parts list – AWG7000C Series PCI/power interface module . . ... ... . . .. . ... . 5-24
Table 5-14: Replaceable parts list – AWG7000B Series PCI/power interface module . . ... ... . . .. . ... . 5-26
Table 5-15: Replaceable parts list – fan tray assembly..................................................... 5-28
Table 5-16: Replaceable parts list – USB module ................... ................................ ....... 5-29
Table 5-17: Replaceable Parts List – AWG12G/CLK12G/OUT10G modules ..... ..................... 5-30
Table 5-18: Replaceable parts list – CLK12G module ..................................................... 5-33
Table 5-19: Replaceable parts list – AWG12G module .................................................... 5-35
Table 5-20: Replaceable parts list – SMA bracket.......................................................... 5-37
Table 5-21: Replaceable parts list – relay unit ........... ................................ ................... 5-39
Table 5-22: Replaceable parts list – rear connectors ........ .................................. ............. 5-41
est equipment .................. ................................ ................................ ..... 3-2
: Diagnostics error codes .............. ................................ ............................. 4-58
5-4: Replaceable parts list – AWG7000B Series chassis assembly.................................. 5-7
Table of Contents
AWG7000B and AWG7000C Series Service Manual v
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 avo 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 AWG7000B and AWG7000C Series Service Manual
General Safety Summary
TermsinThisManual
Symbols and Terms on the
Product
These terms may
WAR N I NG. 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 rea d
indicates an injury hazard not immediately accessible as you
N indicates a hazard to property including the product.
AWG7000B and AWG7000C 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 perform service procedures. Read this Service
this product. Disconnect power, remove battery (if applicable), and
viii AWG7000B and AWG7000C 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 s ubstances 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 AWG7000B 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.
AWG7000B and AWG7000C Series Service Manual ix
Environmental Considerations
x AWG7000B 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 xi
Preface
xii AWG7000B and AWG7000C Series Service Manual
Operating Information
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 1–1
Operating Information
1–2 AWG7000B and AWG7000C Series Service Manual
Theory of Operation
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 2–1
Theory of Operation
Figure 2-1: AWG7000C Series block diagram
2–2 AWG7000B and AWG7000C Series Service Manual
Theory of Operation
Figure 2-2: AWG7000B Series block diagram
AWG7000B and AWG7000C Series Service Manual 2–3
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 b o 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
2–4 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 2–5
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 b oard. 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.
2–6 AWG7000B and AWG7000C Series Service Manual