Tektronix 2402A User manual

,, .
)
First Printing NOV 1989
Revised SEPT
1991
2402A
TEKMATE
HARDWARE
USER'S MANUAL
Please Check for
CHANGE INFORMATION
at the Rear of This Manual
Tektronix®
070-7860-00
Product Group 37

Copyright© 1989 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, SCOPE -MOBILE, and ~ are registered trademarks of
Tektronix. Inc.
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:
B000000
100000
200000
300000
700000
Tektronix. Inc., Beaverton. Oregon, USA
Tektronix Guernsey, Ltd., Channel Islands
Tektronix United Kingdom, Ltd., London
Sonyffektronix, Japan
Tektronix Holland,
NV, Heerenveen,1:he Netherlands

SOFTWARE PROBLEM REPORT
Name ---------------------------
Street ---------------------------
City ------------ State------- Zip ___ _
Phone
__________________________ _
Instructions
Use this form to report software bugs,
documentation errors, or suggested
enhancements. Attach Listings,
graphs or any other information that
might assist in evaluating this report.
Support Line: 1-503-627-2400
or
1-800-835-9433 ext. 1 70
Category
Mail this form to:
Tektronix.Inc.
D/S 47-837
P.O. Box 500
Beaverton, Or 97077-0001
___ Performance ___ Documentation ____ Suggestion __ Other
(Is performance reproducable?)
____ yes ____ no
Software Description (INCLUDE MODEL NUMBERS)
Tektronix Product _________________ Rev ____ _
Serial Number
_______________________ _
Operating System
_____ Rev ________ Supplier _____ __
Other Software Rev Supplier ____ _
Hardware Description
Manufacturer ________ CPU ______ Memory ----KB
(286,386)
Display Device ---------------------'l.:. C :.::: G :.:;;: A ..:., E.::G :l;l A ,.1l,,E...:, T ~Cl
Acquisition Units ______________________ _
(DIGITIZING INSTRUMENT)
Interface cards _________________ _.r...,G.._P...,16""·P_.,, c""'2 ... P..1,C~A.,..FT~c1
Peripherals _________________ _,.,1(,:::: S :..,: PE :;;.; C :;:.: l .:.., FY .:...:.:.. IN ~T.:.E .:..:. R :..: FA ;;:.:: C~E ..,_}

Problem Description
Describe the problem. (Also describe how to reproduce it.and
your diagnosis and suggested corrections.) Attach listings or
hard copies if available. Include a copy of your CONFIG.SYS
and AUTOEXEC.BAT file if appropriate.
For Tektronix Use Only
Comments:
DAte: ____ _
Report# ____ _
Action Taken:
Signed:

German Postal Information
Certificate of the Manufacturer/Importer
We hereby certify that the 2402A TEKMATE and all
factory-installed options
complies with the
RF Interference Suppression requirements of
Amtsbl.-Vfg 1046/1984.
The German Postal Service was notified that the equipment is being
marketed.
The German Postal Service has the
right to re -test the series and to
verify that
it complies.
TEKTRONIX
Bescheinigung des Herstellers/lmporteurs
Hiermit wird bescheinigt, daf3 der/die/das 2402A TEKMATE and all
factory-installed options
in Ubereinstimmung mit den Bestimmungen derAmtsblatt-Verfugung
1046/1984 funkentstort ist.
Der Deutschen Bundespost wurde das lnverkehrbringen dieses Gerates
angezeigt
und die Berechtigung zur LJberprufung der Serie auf Einhalten
der Bestimmungen eingeraumt.
TEKTRONIX

NOTICE to the user/operator:
The German Postal Service requires that Systems assembled by the
operator/user of this instrument must also comply with Postal
Requlation, Vfg.
1046 / 1984 , Par. 2, Sect. 1.
HINWEIS fUr den Benutzer/Betreiber:
Die vom Betrei
ber zusammengestelite Anlage, innerhalb derer dies
Gerat eingesetzt wird, mu~ ebenfalls den Voraussetzungen nach Par . 2,
Ziff. 1der Vfg. 1046/1984 genugen.
NOTICE to the user/operator:
The German Postal Service requires that this equipment, when usE~d in a
test setup, may only be operated if the requirements of Postal
Regulation, Vfg. 1046/1984,
Par. 2, Sect. 1.7.1 are complied with.
HINWEIS
fUr den Benutzer/Betreiber:
Deles Gerat dart
in Me ~aufbauten nur betrieben werden, wenn die
Voraussetzungen des
Par. 2, Ziff. 1. &.1 der Vfg. 1046/1984
eingehalten werden.

Contents
Page
Illustrations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . vii
Tables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ix
Operators Safety Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xi
1 General Information
General lhformation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
Product Overview . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
Standard Accessories . . . . . . . . . . . . . . . . . . . . . . . 1-3
Optional Accessories . . . . . . . . . . . . . . . . . . . . . . .
1-3
Instrument Options . . . . . . . . . . . . . . . . . . . . . . . . . 1-4
Preparation tor Use . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4
Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4
Line Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5
Line Fuse . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5
Power Cord . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7
Instrument Cooling . . . . . . . . . . . . . . . . . . . . . . . . . 1-7
Start-Up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1- 7
Shut-Down . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-8
Repackaging tor Shipment . . . . . . . . . . . . . . . . . . .
1-8
2 Operation
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
Operating Considerations . . . . . . . . . . . . . . . . . . . . . .
2-2
Disk Drives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
Inserting and Removing Floppy Disks . . . . . . . . . . 2-2
Write Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
Disk and Drive Care . . . . . . . . . . . . . . . . . . . . . . . . 2-3
2402A TEKMATE Hardware Users Manual

Contents
Operation with Keyboard and Monitor . . . . . . . . . . . . 2-3
Start-up and Shutdown Procedures . . . . . . . . . . . . 2-3
Disk Operating System . . . . . . . . . . . . . . . . . . . . . . 2-4
Loading DOS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6
Programming . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-11
Configuration File (CONFIG.SYS) . . . . . . . . . . . . . . 2-11
Batch Files . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2-12
3 Controls, Connectors, and Indicators
Controls, Connectors, and Indicators . . . . . . . . . . . . . . 3-1
Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
Front Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3-3
Rear Panel . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . 3-5
RS-232-C Interfaces . . . . . . . . . . . . . . . . . . . . . . . . 3-5
Expansion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1O
4 Performance Characteristics
Performance Characteristics . . . . . . . . . . . . . . . . . . . . . 4- 1
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1
Performance Conditions . . . . . . . . . . . . . . . . . . . . . 4-1
5 Options
ii
Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1
Options Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1
Options A 1-A5- International Power Cords . . . . . 5-1
Option
01 -24XX DSO Compatibility . . . . . . . . . . . 5-2
Option 1P & 2P - HC 100 Pen Plotter . . . . . . . . . . 5-2
Option 1R- Rackmount . . . . . . . . . . . . . . . . . . . . . 5-2
Options 2F & 3F -QuickStart Operators Guide . . . 5-2
Option 21 -Hard Disk . . . . . . . . . . . . . . . . . . . . . . . 5-2
Option 33 - EGA Compatible Video Output . . . . . . 5-2
Option 34- VGA Compatible Video Output . . . . . . 5-3
Option 39- Math Coprocessor . . . . . . . . . . . . . . . . 5-3
Option 45-1 M Byte RAM . . . . . . . . . . . . . . . . . . . . 5-3
Option 41 -Program Development Package . . . . 5-3
2402A TEKMATE Hardware Users Manual

Contents
WARNING I
The information in Sections 6 through Appendix F is for qualified service
personnel
only. Refer to "Service Safety Summary" found immediately
preceding Section
6.
6 Performance Check and Adjustment
Procedures
Performance Check and Adjustment Procedures . . . . . 6-1
Performance Check and Functional Verification . . . . 6-1
Preparation . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . 6-1
Adjustment Procedure . . . . . . . . . . . . . . . . . . . . . . . . .
6-2
7 Maintenance
Maintenance ............. ... ................. .
Static-Sensitive Components
.. ................ .
Preventive Maintenance
...................... .
Introduction
.............................. .
General Care
... .. . ................ ....... .
Inspection and Cleaning
.................... .
Lubrication
..... . .. ............... . ... .... .
Semiconductor Checks
..... . . .............. .
Periodic Readjustment
..................... .
Troubleshooting
............................. .
Introduction
.. ........................... . .
Troubleshooting Aids
...................... .
Troubleshooting Techniques .
.... ............ .
TEKMATE Optional Diagnostic Routines ......... .
Executing the Diagnostics
.................. .
Test Failure ............................... .
Corrective Maintenance
.................... ... .
Introduction
..... . . . . ..................... .
Maintenance Precautions .
...... ..... ....... .
Obtaining Replacement Parts
................ .
Maintenance Aids
.... . ... .. . .... . ......... .
2402A TEKMATE Hardware Users Manual
7-1
7- 1
7-3
7-3
7-3
7-3
7-7
7-7
7-7
7-8
7-8
7-9
7-11
7-14
7-16
7-21
7-26
7-26
7-26
7-26
7-27
iii

Contents
Interconnections . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-27
Transistors and Integrated Circuits . . . . . . . . . . . . . 7-28
Soldering Techniques . . . . . . . . . . . . . . . . . . . . . . . 7-28
Removal and Replacement Instructions . . . . . . . . 7- 29
8 Replaceable Electrical and Mechanical Parts
Replaceable Electrical and Mechanical Parts . . . . . . . . 8-1
9 Diagrams
Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-1
Appendix A
Appendix A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-1
Default Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-1
CPU Board Jumper Locations . . . . . . . . . . . . . . . . A-1
Configuration Memory . . . . . . . . . . . . . . . . . . . . . . . A-4
Video Board {Option 33) Jumper Locations . . . . . A-5
GPIB Board Switch and Jumper Locations . . . . . . A- 7
Custom Programming of the CPU
iv
Custom Programming of the CPU . . . . . . . . . . . . . . . . 8-1
System Memory Map . . . . . . . . . . . . . . . . . . . . . . . 8-3
1/0 Address Map . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-4
PRINTER Port Jumpers . . . . . . . . . . . . . . . . . . . . . . 8-6
SCSI Soft Configuration Options . . . . . . . . . . . . . . 8- 7
Floppy Disk Interface . . . . . . . . . . . . . . . . . . . . . . . B-8
Using the XT Expansion Bus . . . . . . . . . . . . . . . . . 8-10
DRAM Memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-11
Byte-Wide Memory . . . . . . . . . . . . . . . . . . . . . . . . . B-12
Memory Socket Jumper Configuration . . . . . . . . . . 8-13
Video Display (Optional) Mode Jumpering . . . . . . 8-14
Clock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-14
Configuration EEPROM . . . . . . . . . . . . . . . . . . . . . . B-15
SETUP. COM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-15
SCSI Utilities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-23
Preparation for DOS Use . . . . . . . . . . . . . . . . . . . . B-23
2402A TEKMATE Hardware Users Manual

Contents
SCSIEDIT.COM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-24
DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-24
OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-24
1. Select Hard Disk Drive . . . . . . . . . . . . . . . . . . . B-25
2. Show Partition Information . . . . . . . . . . . . . . . . . B-26
3. Install DOS Partition . . . . . . . . . . . . . . . . . . . . . . B-26
4. Remove DOS Partition . . . . . . . . . . . . . . . . . . . . B-26
5. Set "BOOT" Partition . . . . . . . . . . . . .. . . . . . . . B-26
SCSIFMT.COM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-27
SETSPEED.COM . . . . . . . . .. . . . . . . . . . . . . . . . . . . . B-29
SCSIDRIV.SYS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-30
Appendix C
Appendix C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-1
Option 33 Video Board . . . . . . . . . . . . . . . . . . . . . . . . C-1
Operational Modes . . . . . . . . . . . . . . . . . . . . . . . . . C-2
Monitor Specifications . . . . . . . . . . . . . . . . . . . . C-5
Video Board Jumpers . . . . . . . . . . . . . . . . . . . . . . . C-4
Adapter Type Selection . . . . . . . . . . . . . . . . . . . C-5
Video Mode Selection . . . . . . . . . . . . . . . . . . . . C-6
Monitor Type Selection . . . . . . . . . . . . . . . . . . . . C-9
Other Jumper Options . . . . . . . . . . . . . . . . . . . . C-9
Light Pen Interface . . . . . . . . . . . . . . . . . . . . . . . C-11
Option 34 Video Board . . . . . . . . . . . . . . . . . . . . . . . .
C-12
Operational Modes . . . . . . . . . . . . . . . . . . . . . . . . . C-13
Configuration and Connectors . . . . . . . . . . . . . . . .
C-14
CRT Interface Connector-J2 . . . . . . . . . . . . . . C-14
Jumper Configuration . . . . . . . . . . . . . . . . . . . . . C-14
Flat Panel Interface Connector -J3 . . . . . . . . . . C-16
LCD Power Connector- J4 C-17
Appendix D
Appendix D . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-1
GPIB ... .. . ... ................ . .... . .. . . .... .. D-1
GPIB Subsets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-1
GPIB Functional Description . . . . . . . . . . . . . . . . . . D-3
GPIB Board Jumper Modifications . . .. . . . . . . . . . D-5
2402A TEKMATE Hardware Users Manual v

Contents
Appendix E
Appendix E . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-1
ROM Based Operation of the 2402A . . . . . . . . . . . . . . . E-1
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-1
How a
BIOS Extension Works . . . . . . . . . . . . . . . . E-1
Structure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E
-2
Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-2
Checksum . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-2
RAM Usage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-2
Using the RS-232-C
Using the RS-232-C . . . . . . . . . . . . . . . . . . . . . . . . . . . . F-1
What is the RS-232-C? . . . . . . . . . . . . . . . . . . . . . F-1
The Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . F-1
Matching the Signals . . . . . . . . . . . . . . . . . . . . . . .
F-4
Full Handshaking . . . . . . . . . . . . . . . . . . . . . . . . . . . F- 7
Flow Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
F-9
Communication Via Modems . . . . . . . . . . . . . . . . . F-10
lnterfaceParameters . . . . . . . . . . . . . . . . . . . . . . . . F-13
RS-232-C Device Interconnection . . . . . . . . . . . . . . .
F-15
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . F-15
Determining Device Type . . . . . . . . . . . . . . . . . . . . F-15
Interconnection Rules . . . . . . . . . . . . . . . . . . . . . . . F-16
Interconnection Cable- Type Identification . . . . . . . F-18
Index
vi
2402A TEKMATE Hardware Users Manual

Contents
111 ustrations
Figure Page
1-1 Detachable power cord
...... ...... ........ ... ... 1 -5
2-1 Disk write protect tab. ............ . . ... ........ . . 2-2
3-1 Power control and connector. . . . . . . . . . . . . . . . . . . . . . 3-2
3-2 Floppy Disk write protect tab. . .... .... . .. . ....... 3-4
3-3 Front panel controls and indicators. . . . . . . . . . . . . . . . 3-4
3-4 Rear panel controls and connectors. . . . . . . . . . . . . . . . 3 -9
3-5 Expansion slots. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-11
3-6 GPIB connector. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-15
4-1 TEKMATE dimensional drawing. . ................. 4-8
7-1 Multipin connector orientation. . . . . . . . . . . . . . . . . . . . . 7 -1 O
7-2 Diagnostic Menu. . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . 7 -15
9-1 2402A board locator. . . . . . . .. . . . . . . . . . . . . . . . . . . . . 9 -1
9-2 CPU board locator. ..... ........ .. ...... ...... . . 9-2
9-3 CPU board. ... .. . .. ... ... . ............. . .. . . .. 9-3
9-4 SIMM strip (DRAM) and Coprocessor board locators. . 9-4
9-5 SIMM strips (DRAM) and Coprocessor boards. ...... 9-5
9-6 Video board locator (Option 33 or Option 34) . ....... 9-6
9-7 Video board (Option 33) . . .. . ...... ..... ......... 9-7
9-8 Video board (Option 34) Front and Rear View. . . . . . . . 9 -8
9-9 GPIB board locator. . . . . . . .. . . . . . . . . . . . . . . . . . . . . 9-8
9-10 GPIB board. ...... .. ... ....... ... .. . . .......... 9-10
9-11 Interface board locator. . . . . .. . . . . . . . . . . . . . . . . . . . . 9 -11
9-12 Interface board. . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . 9 -12
9-13 Power Supply board locator. ................... .. 9-13
9-14 Power Supply board. ....................... ... . 9-14
9-15 Troubleshooting tree. . . ... . ................. . ... 9-15
9-16 Partial Interconnect Diagram for Option 34 Video Board 9 -19
2402A TEKMATE Hardware Users Manual vii

Contents
A-1 CPU board default jumper locations. . . . . . . . . . . . . . . A-2
A-2 Video Board jumper locations. . . . . . . . . . . . . . . . . . . . . A- 6
A-3 GPIB board 1/0 base address and jumper settings.
.. . A- 7
A-4 GPIB board jumper locations. . . . . . . . . . . . . . . . . . . . . A-8
8-1 CPU board jumper locations. . . . . . . . . . . . . . . . . . . . . . B-2
B-2 SETUP.COM Main Menu ...... . .. . ........... . ... B-16
B-3 Menu A - NOVRAM Setup (general setup, part 1) . . . . B -17
B-4 Menu B - EEPROM General Setup (general setup,
part 2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B- 18
B-5 Menu B - EEPROM General Setup (general setup,
part 2) . . .... . .... . ... .................. . ..... B-19
B-6 Menu D - Edit OEM Data. . . . . . . . .. . . . . . . . . . . . . . . B -21
B-7 Menu E - Write Parameters to a File. .............. B-22
C-1 Video Board jumper locations. . . . . . . . . . . . . . . . . . . . . C-5
D-1 GPIB block diagram. ........................... D-4
D-2 GPIB board default 1/0 base address and
jumper settings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D- 7
D-3 GPIB jumper locator diagram. .................... D-8
D-4 Base 1/0 address options. . . . . . . . . . . . . . . . . . . . . . . . D -9
D-5 OMA channel options. . . . . . . . . . . . . . . . . . . . . . . . . . . D-1 O
D-6a TLC interrupt options. . . . . . . . . . . . . . . . . . . . . . . . . . . . D-11
D-6b TLC interrupt options. . . . . . . . . . . . . . . . . . . . . . . . . . . . D-12
F-1 Detail of the RS-232-C connector with commonly
used lines identified .... .... . . .. ................. F-2
F-2 Signal lines and li n e-swapping in a
null-modem cable. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . F
-6
F-3a Typical transmission sequence for two DTE devices
connected via modems. . . . . . . . . . . . . . . . . . . . . . . . . . F
-11
F-3b Typical transmission sequence for two DTE devices
connected via modems. . . . . . . . . . . . . . . . . . . . . . . . . . F
-12
F-4 Straight Through cable wiring. . . . . . . . . . . . . . . . . . . . . F -17
F-5 Null Modem cable wiring (with handshaking). . ...... F-18
viii 2402A TEKMATE Hardware Users Manual

Contents
Tables
Page
1-1 Power Cord and Voltage Data . . . . . . . . . . . . . . . . . . . . 1- 6
2-1 Sample File Names . . .. . . . . . . . . . . . . . . . . . . . . . . . .
2- 5
3-1 Serial
Port Connections, COM 1 and COM 2 ..... ... 3-6
3-2 KEYBOARD Connector . . . . . . . .. . . . . . . . . . . . . . . . . . 3- 7
3-4 Parallel PRINTER Connector . . .. . . . . . . . . . . . . . . . . . 3- 8
3-5 Video MONITOR Connector . . . . . . . . . . . . . . . . . . . . . . 3- 8
3-6 XT Expansion Bus Connector . . . . . . . . . . . . . . . . . . . . . 3- 12
3-7 General Purpose Interface Bus Connector . . . . . . . . . . 3-14
4-1 2402A Electrical Characteristics . . . . . . . . . . . . . . . . . . . 4- 2
4-2 2402 A Mechanical Characteristics . . . . . . . . . . . . . . . . 4- 7
4-3 Environmental Characteristics . . . . . . . . . . . . . . . . . . . . 4- 9
7-1 Relative Susceptibility to Statics-Discharge Damage . 7- 2
7-2 External Inspection Check List . . . . . . . . . . . . . . . . . . . . 7- 4
7-3 Internal Inspection Check List .. ......... . ... . ... . 7-6
7-4 Serial Port Loop Back Connector . . . . . . . . . . . . . . . . . . 7- 18
7-6 Parallel Port Loop Back Connector . . . . . . . . . . . . . . . . 7- 20
7- 7 Diagnostic Failure Checks . . . . . . . . . . . . . . . . . . . . . . . 7- 22
7-8 Maintenance Aids . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7- 27
A-1 CPU Board Default Jumper Locations . . . . . . . . . . . . . . A -3
A-2 NOVRAM Setup ....... ...... .. ............... .. A -4
A-3 EEPROM General Setup ..... ................. ... A -4
A-4 EEPROM SCSI and Drive Setup . . . . . . . . . . . . . . . . . . . A -5
A-2 Video Board Default Jumper Locations . . . . . . . . . . . . . A -5
A-3 GPIB Board Default Settings . . . . . . . . . . . . . . . . . . . . . A- 7
B-1
CPU Board Memory Map . . . . . . . . . . . . . . . . . . . . . . . . B- 3
B-2 1/0 Port Assignment Map . . . . . . . . . . . . . . . . . . . . . . . . B -5
B-6 Parallel Printer Configuration . . . . . . . . . . . . . . . . . . . . . B- 6
B- 7 SCSI Interface Optic;m Jumpers . . . . . . . . . . . . . . . . . . . B- 7
B-8 Supported Floppy Formats . . . . . . . . . . . . . . . . . . . . . . . B- 8
B-9 Dual-Speed Drive Option . . . . . . . . . . . . . . . . . . . . . . . . B- 9
B-1O Floppy Disk Interface Connector (J8) . . . . . . . . . . . . . . B- 1O
B-15 On-board DRAM Memory Size Jumpering . . . . . . . . . . B- 11
B-16 On-board DRAM Timing Jumpering . . . . . . . . . . . . . . . B -12
B-16 U32 and U33 Device Jumpering . . . . . . . . . . . . . . . . . . B-13
B-18 Video Display Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-14
2402A T.EKMATE Hardware Users Manual ix

Contents
C-1 Modes Available when Jumpered as an
EGA Adapter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C- 2
C-2 Modes Available when Jumpered as a
CGA Adapter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-3
C-3 Modes Available when Jumpered as a
Monochrome Adapter . . . . . . . . . . . . . . . . . . . . . . . . . . . C- 3
C-4 Typical Monitor Specifications . . . . . . . . . . . . . . . . . . . . C- 4
C-5 Adapter Type Selection . . . . . . . . . . . . . . . . . . . . . . . . . . C- 6
C-6 Video Mode Selection -- EGA Adapter Type . . . . . . . . C- 8
C-7 Video Mode Selection -- CGA Adapter Type . . . . . . . . C- 8
C-8 Video Mode Selection -- MDA/Hercules
Adapter Type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C- 9
C-9 Monitor Compatibility Jumpers ................... C-9
C-1O Light Pen Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . C- 11
C-11 Modes Available for Option 34 Video Board . . . . . . . . . C-13
C-12 Jumper Configuration Summary . . . . . . . . . . . . . . . . . . . C- 15
D-1 GPIB Subsets ........ . . ... . .. .. ......... . . . . .. D-2
D-2 Address Lines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-5
D-3 GPIB Interface Default Settings . . . . . . . . . . . . . . . . . . . D- 6
F-1 Commonly Used RS-232-C Signals . . . . . . . . . . . . . . . F
-3
F-2 DTE/DCE Device Signal Functions ..... .. ....... . . F-5
F-3 Cable- Type Identification . . . . . . . . . . . . . . . . . . . . . . . . F -19
x 2402A TEKMATE Hardware Users Manual

Operators Safety Summary
The general safety information in this part of the summary is for both operating and
servicing personnel. Specific warnings and cautions
will be found throughout the
manual where they apply and do not appear in this summary.
Terms
In This Manual
CAUTION statements identify conditions or practices that could result in damage
to the equipment or other property.
WARNING statements identify conditions or practices that could result in
personal injury or loss
of life.
Terms
As Marked on Equipment
CAUTION indicates a personal injury hazard not immediately accessible as one
reads the markings, or a hazard to property,
including the equipment itself.
DANGER indicates a personal injury hazard immediately accessible as one reads
the marking.
Symbols
In This Manual
Thissymbolindicateswhere applicablecautionary or otherinformation is
to be found. For maximum input voltage see Table 4-1.
As Marked on Equipment
f DANGER- High voltage.
@ Protective ground (earth) terminal.
A ATTENTION -Refer to manual.
2402A TEKMATE Hardware Users Manual
xi

Power Source
This product is intended to operate from a power source that will not apply more
than 250 volts rms between the supply conductors or between either supply
conductor and ground. A protective ground connection by way of the grounding
conductor
in the power cord is essential for safe operation.
Grounding the Product
This product is grounded through the grounding conductor of the power cord. To
avoid electrical shock, plug the power cord into a properly wired receptacle before
making any connections to the product input or output terminals. A protective
ground connection by way of the grounding conductor
in the power cord is essential
for
safe operation.
Danger Arising from Loss of Ground
Upon loss of the protective-ground connection, all accessible conductive parts
(including knobs and controls that may appear to be insulated) can render
an electric
shock.
Use the Proper Power Cord
Use only the power cord and connector specified for your product.
Use only a power cord that is in good condition.
For detailed information
on power cords and connectors, see Table 2-1.
Use the Proper Fuse
To avoid fire hazard, use only a fuse ofthe correct type, voltage rating and current
rating
as specified in the parts list for your product.
Do Not Operate in Explosive Atmospheres
To avoid explosion, do not operate this instrument in an explosive atmosphere unless
it
has been specifically certified for such operation.
Do Not Remove Covers or Panels
xii
To avoid personal injury, do not remove the product covers or panels. Donot operate
the instrument without the covers and panels properlyinstalled.
2402A TEKMATE Hardware Users Manual

General Information
Introduction
This section briefly describes your TEKTRONIX 2402A TEKMATE and tells how to
prepare for and proceed with the initial start-up. It also includes safety information, as
well as necessary information to prevent damage to the instrument. PLEASE READ.
NOTE
See Section 5, "Options," for a description of TEKMATE options. Information
about programming the
TEKMATE and operating it by means of the GPIB is
contained in the optional software documentation suppliedwith the TEKMATE.
Product Overview
The Tektronix 2402A TEKMATE is a portable, compact, low power, AT- and
GPIB-488-compatible system. The TEKMATE is ideally suited for applications where
IBM PC software and bus compatibility are required and where low power
consumption, small size, and high reliability are critical. The instrument can add data
acquisition and control to your system, and can be mounted onto your Tektronix
portable oscilloscope.
The 2402A has the following features:
• 80C286 microprocessor system
16 MHz
CPU clock
3 OMA channels - IBM AT compatible
Counter/timers and interru pt controllers - IBM PC compatible
• 1
M-byte dy namic RAM with parity
2402A TEKMATE Hardware Users Manual
1-1

General Information
1-2
5 IBM AT compatible floppy disk drive
Two 3.5 inch micro-floppy disk drives
1.44M-byte formatted capacity per drive
• Video controller and lnteriace (Optional)
Standard
IBM PC monochrome display (MDA 80 characters
by 25
rows}
Hercules monochrome graphics (720 by 348 pixels)
Standard IBM
PC color graphics (CGA 620 by 200 pixels, 16 colors)
IBM Enhanced graphics (EGA 640 by 350 pixels, 16 colors)
• External 1/0 ports
2 Serial RS-232C (the
COM 1, and COM 2 ports)
Centronics® parallel printer port
IEEE 488 GPIB
Keyboard
Hardware reset button
Audio speaker
Power-on LED indicator
• XT expansion bus
Supports two full
PC expansion cards or two half-cards and
1 full card
• Versatile power supply
90-250 VAC, 48-440 Hertz one range input
50 total load Watts available (approximately 24 load Watts available
to expansion connectors)
2
A, 250 V fuse is internal and located on the power supply circuit
board
under the power supply shield
•
Real time and date clock
Battery backed
up
2402A TEKMATE Hardware Users Manual