Tektronix 2440 Product information sheet

2440 USER REFERENCE
TEK w,,x
070-6600-00
Product Group 37
2440
DIGITAL OSCILLOSCOPE
USER REFERENCE GUIDE
First Printing SEP 1987
Revised OCT 1989

-
.
<
. . .--..e -m.-.. .
TEK .INTER-OFFICE COMlvllJNlCATlON
.-
.
Sohn Martin 94-540
TO 3:. ’t Juno 25, 1991
FWW
Frank Gray, SO-PAT
M3KC.T
GIDEP permit request
In response to the request to grant permission to the
Government Industry Exchange Pro ram (GPDEP) to reproduce
Tektronix operator,
service and
P
nstruction manuals,
Tektronix, Inc. hereby grant6 such permission for distribution
of such documents to any GTDEP user that is a full participant
in the Metrology Data Interchange Data Base of GIDEP provided
that all copies of the original work include the entire
copyright notice and ownership statement exactly a-& it appears
in the original, together with the Legend "Reproduded with
pemieeion,a
This permission has been approved by the Intellectual
aeon% 1[
Committee of Tektronix
ded
and a copy of this memo may
to GIDEP to grovide’the requested permission.
geG&dy
Group Pat&t CounselGroup Patent C&nsal v

Copyright @ 1987 Tektronix, Inc. All rights reserved.
Contents of this publication may not be reproduced in any
form without the written permission of Tektronix, Inc.
Products of Tektronix, Inc. and its subsidiaries are covered
by U.S. and foreign patents and/or pending patents.
TEKTRONIX, TEK, S.COPE-MOBILE, and
registered trademarks of Tektronix, Inc. are
Printed in U.S.A. Specification and price change privileges
are reserved.
INSTRUMENT SERIAL NUMBERS
Each instrument has a serial number on a panel insert, tag,
or stamped on the chassis, The first number or letter
designates the country of manufacture. The last five digits
of the serial number are assigned sequentially and are
unique to each instrument. Those manufactured in the
United States have six unique digits. The country of
manufacture is identified as follows:
BOO0000 Tektronix, Inc., Beaverton, Oregon, USA
100000 Tektronix Guernsey, Ltd., Channel Islands
200000 Tektronix United Kingdom, Ltd., London
300000 Sony/Tektronix, Japan
700000 Tektronix Holland, NV, Heerenveen,
The Netherlands

Contents
1
Getting Started/Fran t Panel ................................................ 1
2
CRT Readout Display.. ....................................................... 4
3
Status/Help Menu ............................................................... 5
4 Powering Up ....................................................................... 7
5
CRT Display Menus ............................................................ 9
6
Auto Setup.. ........................................................................ 11
7 PRGM AutoStep ................................................................. 13
8
Measure .............................................................................. 16
9
output.. ............................................................................... 20
Page
Illustrations iii ......................................
,..............,..,....................................,...
IO
Vertical. ...............,,.............................................................. 22

11
Horizontal ............................................................................ 25
12
Cursors ............................................................................... 26
13
Delay Functions .................................................................. 29
14
Triggering ............................................................................ 31
15
A Triggering ........................................................................ 35
16
6 Triggering ........................................................................ 37
17
Acquisition ........................................................................... 40
18
Save and Display Reference .............................................. 42
19
GPIS Status.. ...................................................................... 44
ii
“...-.
-_ ._.__....-. -..- -__I-

Illustrations
Figure Page
1
2
3
4
5
6
7
8
9
10a
lob
11
12
13
14
15
16
17
ia
19
Front Panel Buttons and Controls.. ............................................................... 3
CRT Readout Display .................................................................................... 4
Status Menu Display.. .................................................................................... 5
POWER and MENU OFF Button.. ................................................................. 7
INTENSITY Control, SELECT and STATUS/HELP Buttons.. ...................... 9
AUTO SETUP Button .................................................................................... 11
PRGM Button.. ............................................................................................... 13
MEASURE Button.. ........................................................................................ 16
OUTPUT Button.. ........................................................................................... 20
Vertical Buttons and Controls ....................................................................... 22
Vertical Buttons and Controls ....................................................................... 23
Horizontal Buttons and Controls.. ................................................................. 25
Cursor Buttons and Controls ........................................................................ 26
Delay Buttons and Controls .......................................................................... 29
Trigger CPLG, SET VIDEO, and SET WORD Buttons ................................ 31
Trigger SOURCE, INIT @50%, and TRIG STATUS Buttons.. .................... 33
A Trigger MODE, TRIG POSITION, A/B TRIG Buttons.. ............................. 35
B Trigger A/B TRIG, CPLG, INIT @50%, MODE, TRIG POSITION
SOURCE Buttons .......................................................................................... 37
Storage ACQUIRE Button.. ........................................................................... 41
Storage SAVE and DISPLAY REF Button.. .................................................. 42
..
III
-.

SAFETY NOTE
This manual is a quick reference guide to the 2440 features. It does not rep/ace the
2440 Operators manual. The 2440 Operators manual (070-6695-00) contains
information related to safe use of this instrument as well as information necessary to
prevent damage to the instrument or to other property. Users should refer to the 2440
Operators manual before operating this instrument. In particular, read the “Operators
Safety Summary” at the beginning of the Operators manual, and “Preparation for Use”
in Section 1.
iv

GETTING STARTED
See Front Panel (Figure 1) for locating the controls on the 2440.
Power On
Press the POWER switch, located on the front panel below the CRT
The 2440 performs a power-on test each time it is turned on. When the test
progresses to the point of being able to display, the message “RUNNING SELF
TEST” is shown on the CRT. At the end of the self test, the message is removed.
If the 2440 fails the self test, it will enter the extended diagnostics (see ‘MENU
OFF/EXTENDED FUNCTIONS” below for explanation). The 2440 may still be
usable if the failed area does not affect the measurements to be made. Press
MENU OFF to exit extended diagnostic and enter Scope mode.
The CAL/DIAG menu displays the message “NOT WARMED UP” for ten
minutes after each power-on.
Menu Off/Extended Functions
In the CAUDIAG menu, PASS or FAIL indicates the results of the last
calibration or self diagnostic run. No label will appear if calibration has not been run
since the last cold starta. If an “UNCALD” message appears in the extended
diagnostics menu, it may indicate that the last attempt of extended calibration
failed. In this case, allow the 2440 to warm up and do a SELF CAL. If the
UNCALD message persists after a SELF CAL or some other area has failed, the
previous calibration constants will not be overwritten, and the scope may be used.
However, calibration should be checked by referring the instrument to a qualified
service person. Press MENU OFF to exit extended diagnostics and enter Scope
mode. More information on the self test and diagnostics is found in Appendix A of
the Operators Manual.
@Cold Start is a complete initialization of the system, done only at the factory.
2440 Users Reference Guide 1

lnitializa tion
Connect a standard accessory probe to the CH 1 input BNC.
Connect the probe tip to the CALIBRATOR loop; connect the probe ground
lead to scope ground.
Press the PRGM SETUP button, located below the A AND B SEC/DlV knob.
Select INIT PANEL menu choice by pressing the bezel button directly below the
INIT PANEL menu label.
The initial settings for major front-panel controls are as follows:
VERTICAL MODE
CH 1 and CH 2 VOLTSiDlV
A AND B SECiDlV
TRIGGER MODE
TRIGGER SOURCE
Input Coupling
STORAGE MODE
ACQUIRE MODE
CH 1
1V (With 1 OX probe)
1 ms
AUTO LEVEL
VERT (CH 1)
1 MR DC
ACQUIRE
NORM
Verify that CH 1 Vertical Mode is selected (CHl VOLT/DIV readout is in upper
left corner of CRT). If CH 1 Vertical Mode is not selected, press Vertical MODE
button and select CH 1 (See Section 10, Vertical Mode, of this guide.)
Press ACQUIRE button on front panel
NOTE
Connecting a probe to the signal source and pressing the Auto Setup front-
panel button will provide a scaled and triggered display. If no vertical
channel is selected AUTO Setup will default to Channel 1. Auto Setup will
not change the channel selected if either or both of the two channels are on.
If the display intensity is set too low and the scaled display is not easy to
see, Auto Setup boosts intensity so the display can be seen. Auto Setup
does not affect readout or graticule intensity.
2 2440 Users Reference Guide

FRONT PANEL
Section 12 Section 13 Section 16
Section 7 I Section 9, 19
Section 3 Section 10 Section 6 Section 6 Section
Figure 1. Front Panel buttons and Controls.
2440 Users Reference Guide 3
_. -_.... “-...._