Informações sobre o equipamento:

Tektronix TDS 644A Osciloscópio
Modelo: TDS 644A
Data: 1993
Categoria: Instrumentos de medição
Grupo: Osciloscópio
Descrição: Digitizing Oscilloscope
                                    The TDS 620A, 640A, & 644A are portable, four-channel
digitizing oscillo-
scopes suitable for use in a variety of test and measurement
and systems. Key features include:
 A maximum digitizing rate of 2 GS/s on each of the
full-featured chan-
nels (four on the TDS 640A and 644A, two on the TDS 620A)
neously with an analog bandwidth of 500 MHz.
 Four input channels, each with 8-bit vertical resolution,
and each with a
record length of 2,000 samples and 8-bit vertical resolution.
 Extensive triggering capabilities: such as edge, logic, and
glitch. Video
trigger (Option 05) is also available. The video trigger
modes are NTSC,
SECAM, PAL, HDTV, and FlexFormatTM (user definable format).
 Acquisition modes such as sample, envelope, and average.
 A full complement of advanced functions, like
measurements, results and local pass/fail decision making.
 Specialized display modes, such as variable persistence
with color
grading, dot or vector mode, sin(x)/x or linear display
filters, and user
selectable color pallettes. The "Fit to Screen" features
compresses the
entire waveform record to fit on the screen.
 A unique graphical user Interface (GUI), an on-board help
mode, and a
logical front-panel layout which combine to deliver a new
standard in
 Full GPIB Software programmability. Hardcopy output using GPIB,
RS-232, or Centronics ports. RS-232 and Centronics are
standard on
the TDS 644A and optional, as option 13, on the TDS 620A and
 VGA output for driving remote monitors.
 A 1.44 Mbyte, DOS 3.3 or later-compatible, floppy disk
drive (option 1F
on the TDS 620A and 640A) and NVRAM mass storage for saving
waveforms, hardcopies, and Oscilloscope setups.
 On the TDS 644A, a color display for distinguishing a m o n
g waveforms,
their measurements, and associated text.

I ^

Use a combination of front-panel buttons, knobs, and
on-screen menus to
control the oscilloscope's many functions. The front-panel
controls are
grouped according to function: vertical, horizontal,
trigger, and special. Set a
function you adjust often, such as vertical positioning or
the time base
setting, directly by its own front-panel knob. Set functions
which you change
less often, such as vertical coupling and horizontal mode,
indirectly using
selected menus.
Pressing one (sometimes two) front-panel button(s), such as
vertical menu,
displays a main menu of related functions, such as coupling,
etc., at the bottom of the screen. Pressing a main-menu
button, such as
coupling, displays a side menu of settings for that
function, such as AC, DC,
or GND (ground) coupling, at the right side of the screen.
Pressing a side-
menu button selects a setting such as DC.
On-screen readouts help you keep track of the settings for
various functions,
such as vertical and horizontal scale and trigger level.
Some readouts use
the cursors or the automatic parameter extraction feature
(called measure)
to display the results of measurements made or the status of
the instrument.
General Purpose Knob
Assign the general purpose knob to adjust a selected
parameter function.
More quickly change parameters by toggling the SHIFT button.
Use the
same method as for selecting a function, except the final
side-menu selec-
tion assigns the general purpose knob to adjust some
function, such as the
position of measurement cursors on screen, or the setting
for a channel's
fine gain.
The user Interface also makes use of a GUI, or Graphical
User Interface, to
make setting functions and interpreting the display more
intuitive. Some
menus and status are displayed using iconic representations
of function
settings such as those shown here for full, 100 MHz, and 20
MHz band-
width. Such icons allow you to more readily determine status
or the available

Estes manuais estão disponíveis para os equipamentos acima:

Tipo manual: Manual do Usuário Tektronix-4519-Manual-Page-1-Picture
Páginas: 378
Tamanho: 2.00 Mbytes (2102273 Bytes)
Idioma: Inglês
Revisão: Seventh edition
Manual-ID/Number: 070-8709-06
Data: Novembro 1994
Qualidade: Documento eletrônico, digitalização, bem legível.
Envie data:
MD5: 95d81baea023aa2e8c63a91e8335a437
Downloads: 2588 desde 28 Abril 2013
TDS Family Oscilloscope Programmer Manual

This programmer manual covers the TDS 410, 420, 460, 520A, 524A, 540A,
544A, 620A, 640A, 644A, 684A, 744A, & 784A. It also covers Advanced DSP
Math (optional on the TDS420, 460, 520A, 540A, 620A, & 640A), the
RS-232/Centronics Interface (optional on the TDS 410, 420, 460, 520A, 540A,
620A, & 640A), and the Option 05 Video Trigger. This manual provides
information on operating your Oscilloscope using the General Purpose Interface
Bus (GPIB) Interface.

Table of Contents
Getting Started
Overview of the Manual  ... 1–1
Setting Up Remote Communications  ... 1–3
Syntax and Commands
Command Syntax  ... 2–1
Command and Query Structure  ... 2–1
Clearing the TDS Family Oscilloscope  ... 2–3
Command Entry  ... 2–3
Constructed Mnemonics  ... 2–6
Argument Types  ... 2–7
Syntax Diagrams  ... 2–10
Command Groups  ... 2–11
Acquisition Commands  ... 2–11
Alias Commands  ... 2–12
Application Menu Commands  ... 2–12
Calibration and Diagnostic Commands  ... 2–13
Cursor Commands  ... 2–13
Display Commands  ... 2–14
File System Commands  ... 2–16
Hardcopy Commands  ... 2–16
Horizontal Commands  ... 2–17
Limit Test Commands  ... 2–18
Measurement Commands  ... 2–19
Miscellaneous Commands  ... 2–21
RS-232 Commands  ... 2–22
Save and Recall Commands  ... 2–22
Status and Error Commands  ... 2–23
Trigger Commands  ... 2–24
Vertical Commands  ... 2–31
Waveform Commands  ... 2–32
Zoom Commands  ... 2–37
Command Descriptions  ... 2–39
Status and Events
Registers  ... 3–1
Queues  ... 3–5
Event Handling Sequence  ... 3–6
Synchronization Methods  ... 3–7
Messages  ... 3–12
Programming Examples
Compiling the Example Programs  ... 4–2
Appendix A: Character Charts  ... A–1
Appendix B: Reserved Words  ... B–1
Appendix C: Interface Specifications  ... C–1
GPIB Function Subsets  ... C–1
Interface Messages  ... C–2
Appendix D: Factory Initialization Settings  ... D–1
Glossary and Index

Tipo manual: Manual de serviço Tektronix-9947-Manual-Page-1-Picture
Páginas: 288
Tamanho: 106.26 Mbytes (111417710 Bytes)
Idioma: Inglês
Manual-ID/Number: 070-8718-04
Data: 01 Janeiro 1993
Qualidade: Documento eletrônico, digitalização, bem legível.
Envie data:
MD5: cef247aa4071c11f850135210be2fa0f
Downloads: 254 desde 25 Dezembro 2017
List of Figures
List of Tables
Safety Summary
Table of Contents

General Product Description
User Interface
General Purpose Knob
Signal Acquisition System
Horizontal System
Trigger System
Acquisition Control
On-Board User Assistance
Measurement Assistance
Digital Signal Processing (DSP)
Storage and I/O
Nominal Traits
Warranted Characteristics
Typical Characteristics
Operating Information
Using this Manual
Before Servicing
Strategy for Servicing
Manual Structure
Manual Conventions
Tektronix Service
Warranty Repair Service
Repair or Calibration Service
Self Service
Finding Other Information
General Information
Supplying Operating Power
Power Cord Information
Operating Voltage
Memory Backup Power
Operating Environment
Operating Temperature
Ventilation Requirements
Applying and Interrupting Power
Power On
Power Off
Repackaging Instructions
Installed Options
General Operating Instructions
Screen Layout
Basic Procedures
How to Power On
How to Use Help
How to Use the Status Menu
How to Set Functions
How to Set Complex Functions
Theory of Operation
Circuit Description
Logic Conventions
Module Overview
Performance Verification
Brief Procedures
General Instructions
Self Tests
Verify Internal Adjustment, Self Compensation,
and Diagnostics
Functional Tests
Verify All Input Channels
Verify the Time Base
Verify the Main and Delayed Trigger Systems
Verify the File System (Optional on TDS 620A and 640A) . . .
Performance Tests
Equipment Required
Test Record
Signal Acquisition System Checks
Check Accuracy of Offset (Zero Setting)
Check DC Gain and Voltage Measurement Accuracy
Check Analog Bandwidth
Check Delay Between Channels
Time Base System Checks
Check Accuracy for Long-Term Sample Rate, Delay Time,
and Delta Time Measurements
Trigger System Checks
Check Accuracy (Time) for Pulse-Glitch or Pulse-Width
Check Accuracy, Trigger-Level or Threshold, DC
CoupledSensitivity, Edge Trigger, DC Coupled
Output Signal Checks
Check O u t p u t s — A U X 1 (for TDS 620A) or CH 3 (for
TDS 640A or 644A), Main and Delayed Trigger
Check Probe Compensator Output
Option 05 Video Trigger Checks
Check Video Trigger
Adjustment Procedures
Adjustment Procedures
Requirements for Performance
Warm-Up Period
Optional Peripherals
Test Equipment
Performing the Adjustments
Complete Adjustment
Individual Adjustments
Partial Adjustment
Adjustment After Repair
Adjustment Dependencies
Equipment Required
Adjustment Instructions
Hardware Installation
Software Installation
Software-Based Adjustments
Probe Adjustment for the P6139A Probe
Compensate the Probe
Measure Probe Bandwidth
Adjust the Probe — High Frequency Response
Display Assembly Adjustment
Brightness and Contrast Adjustment
(TDS 620A and 640A - Monochrome - Only)
Rotation, Brightness, and Contrast Adjustment
(TDS 644A - Color - Only)

Maintenance Information
Procedures Not In This Section
Preventing ESD
Susceptibility to ESD
Inspection and Cleaning
General Care
Inspection and Cleaning Procedures
Inspection — Exterior
Cleaning Procedure — Exterior
Inspection — Interior
Cleaning Procedure — Interior
Removal and Installation Procedures
Preparation — Please Read
List of Modules
General Instructions
Summary of Procedures
Access Procedure
Procedures for External Modules
Front-Panel Knobs
Line Fuse and Line Cord
EMI Gaskets
Rear Cover and Cabinet
Front Cover, Trim Ring, Menu Buttons, and Attenuator Panel
A12 Front-Panel Assembly
Display-Frame Assembly
Cabinet Modules
Procedures for Outer-Chassis Modules
A15 Attenuator Assembly
A14 D1 Bus and Analog-Power and Digital-Power Cables
A23 SerPar Board — RS232/Centronics Hardcopy Interface
A29 Video Trigger Board
A11 Processor/Display Board
Top Cover and Board Brackets
Rear-Panel Cables
A10 Acquisition Board
Floppy Disk
Rear Chassis
Procedures for Inner-Chassis Modules
A16 Low Voltage Power supply
A20 or A30 Display Assembly and Supply Fuse
Front Subpanel
Main Chassis
Disassembly for Cleaning
Firmware Updates

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