Table Of ContentCOMMITTED TO EXCELLENCE
OPTION 06
I/O COMMUNICATION INTERFACE
SERVICE MANUAL ADDENDUM
TO THE DAS 9100 SERIES SERVICE MANUAL
(PART NUMBERS 062-5848-00, 01 AND UP)
The 062-5848-00 manual set is a package consisting of loose leaf binders with manuals and ad
denda. Each manual and addendum in the set has its own part number starting with the prefix
070.
This addendum contains service information specific to the Option 06 I/O Communication
Interface. ..
Refer to the DAS 9100 Series Service Manualfor information on other DAS products, including
mainframes, instrument modules, probes, and options.
How To Use This Addendum. This addendum is organized similarly to the DAS 9100 Series
Service Manual: sections in the addendum correspond to the sections in the service manual.
You can either leave the addendum whole and place it in one of the service manual binders, or
you can separate the sections and insert them after the corresponding section in the main
manual.
NOTE: You can order an extra service manual binder (Vol. III) by requesting
PIN 016-0769-00.
PLEASE CHECK FOR CHANGE INFORMATION
AT THE REAR OF THIS MANUAL.
070-4571-00
(part of pkg. 062-5848-03) FIRST PRINTING SEPTEMBER 1983
Product Group 57 REVISED PRINTING FEBRUARY 1984
Option 06 1/0 Interface Service
I
I
WARNING
THE FOLLOWING SERVICING INSTRUCTIONS ARE FOR USE BY QUALI
FIED PERSONNEL ONLY. TO AVOID PERSONAL INJURY, DO NOT
PERFORM ANY SERVICING OTHER THAN THAT CONTAINED IN THE
So.
OPERATING INSTRUCTIONS UNLESS YOU ARE QUALIFIED TO DO
REFER TO THE OPERATOR'S SAFETY SUMMARY AND SERVICE SAFE
TY SUMMARY IN THE DAS 9100 SERIES SERVICE MANUAL PRIOR TO
PERFORMING ANY SERVICE.
Copyright 1983 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.
@t
TEKTRONIX, TEK, SCOPE-MOBILE, and are
registered trademarks of Tektronix, Inc. TELEQUIPMENT
is a registered trademark of Tektronix U.K. Limited.
Printed in U.S.A. Specification and price change privileges
are reserved.
MANUAL REVISION STATUS
PRODUCT: OPTION 06 I/O COMMUNICATION INTERFACE SERVICE
MANUAL ADDENDUM-
This manual supports the following versions of this product: All
REV DATE DESCRIPTION
SEPT 1983 Original Issue
NOV 1983 Revised Printing: Add page in Section 11
FEB 1984 Revised Printing: Section 11: Fig. 11-1. Tabs added. C10 M10. C11 M11 and C12 M12
Pages: 3-1. 5-1 and Title page
Option 06 1/0 Interface Service
TABLE OF CONTENTS
Page
LIST OF ILLUSTRATIONS ................................................ . iv
LIST OF TABLES ....................................................... . v
OPERATOR'S SAFETY SUMMARY ......................................... . vi
SERVICE SAFETY SUMMARY vi
I
I
WARNING
THE FOLLOWING SERVICING INSTRUCTIONS ARE FOR USE BY QUALI
FIED PERSONNEL ONLY. TO AVOID PERSONAL INJURY, DO NOT
PERFORM ANY SERVICING OTHER THAN THAT CONTAINED IN THE
OPERATING INSTRUCTIONS UNLESS YOU ARE QUALIFIED TO DO So.
SECTION 1 INTRODUCTION AND SPECIFICATIONS
General Description ...................................................... " 1-1
Physical Description ....................................................... 1-1
Electrical Description ...................................................... 1-2
RS-232 Ports .......................................................... 1-2
GPIB Interface ......................................................... 1-3
Composite Video Output ................................................. 1-3
Field Installation .......................................................... 1-3
Standard Accessories ..................................................... 1-3
Optional Accessories ...................................................... 1-3
Specifications ............................................................ 1-4
Performance Conditions .................................................. 1-4
Environmental Specifications .............................................. 1-4
Safety Specifications .................................................... 1-4
Electrical Specifications .................................................. 1-4
SECTION 2 OPTIONS
SECTION 3 OPERATING INSTRUCTIONS
Standard and Optional I/O Connectors ........................................ 3-1
RS-232 Interfaces ....................................................... 3-1
General Purpose Interface Bus (GPIB) ...................................... 3-3
Composite Video Interface ................................................ 3-4
Color Video Signal ...................................................... 3-5
Keyboard Controls and Indicators ............................................ 3-6
Menu Selection ......................................................... 3-6
Menu Familiarization ....................................................... 3-6
I/O Function ........................................................... 3-6
Option 06 I/O Interface Service
TABLE OF CONTENTS (Cont.)
Page
SECTION 4 THEORY OF OPERATION
General Description ...................................................... . 4-1
Circuit Descriptions ....................................................... . 4-2
ROM ................................................................ . 4-3
GPIB Port ............................................................ . 4-3
Smart Port Controller .................................................. . 4-7
SPC Operating Modes ............................................. . 4-8
SPC Registers .................................................... . 4-9
SPC Transfers .................................................... . 4-9
SPC Memory ..................................................... . 4-11
SPC Initialization .................................................. . 4-12
Four SPC Program Instruction Descriptions ............................ . 4-14
Load Data Register ............................................. . 4-14
Load the Port Address Register ................................... . 4-15
Load Loop Counter ............................................. . 4-16
Transfer Data Register to GPIB .................................... . 4-16
RS-232 Master/Slave and Printer Ports .................................... . 4-17
Master/Slave Port (RS-232 DTE) ..................................... . 4-17
Printer Port (RS-232 DCE) .......................................... . 4-17
Video Output .......................................................... . 4-19
I/O Interface Connector ................................................. . 4-19
SECTION 5 VERIFICATION AND ADJUSTMENT PROCEDURES
Introduction ............................................................. 5-1
Functional Check Procedures ............................................... 5-1
Functional Check, GPIB Address Switch Operation ............................ 5-2
Functional Check, GPIB and RS-232 Verification .............................. 5-3
Functional Check, Smart Port Controller Verification ........................... 5-7
Performance Check Procedures ............... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 5-9
Adjustment Procedures .................................................... 5-9
SECTION 6 MAINTENANCE: GENERAL INFORMATION
Maintenance Precautions ................................................... 6-1
Soldering .............................................................. 6-1
Light-emitting Diodes .................................................... 6-1
Static Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 6-1
Test Equipment Required for Maintenance ..................................... 6-2
Tools Required for Maintenance ........................................... 6-2
Disassembly/Installation Procedures .......................................... 6-3
General Disassembly Precautions .......................................... 6-3
Removing Panels and Covers ............................................. 6-4
Installing/Removing Instrument Modules ..................................... 6-5
Module Installation .................................................. 6-5
Module Removal ................................................... 6-6
Installing the Option 06 I/O Communication Interface ...................... 6-7
Removing the Option 06 I/O Communication Interface Board ............... 6-8
Removing the I/O Connector Panel ............ .. . . . . . . . . . . . . . . . . . . . . . .. 6-9
ii
Option 06 1/0 Interface Service
TABLE OF CONTENTS (Cont.)
Page
Interior Cleaning .......................................................... 6-9
Inspection ............................................................... 6-10
Power-up Self Test ........................................................ 6-10
Corrective Maintenance .................................................... 6-10
Obtaining Replacement Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 6-10
SECTION 7 MAINTENANCE: TROUBLESHOOTING
Introduction .............................................................. 7-1
Diagnostics .............................................................. 7-1
Powerup Diagnostics .................................................... 7-1
Diagnostic Menu Diagnostics .............................................. 7-2
Interface Problems ...................................................... 7-2
Diagnostic Test Description ............................................... 7-4
Function 0: Baud Rate Multiplexer Tests .................................. 7-4
Function 1: Smart Port Controller Tests ................................... 7-5
Troubleshooting the Smart Port Controller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 7-10
Finding the Defective SPC Component ................................. 7-13
Troubleshooting Procedure ........................................... 7-13
Function 2: GPIB Tests ................................................ 7-15
Troubleshooting the GPIB ............................................ 7-16
Function 3: RS-232 Test ............................................... 7-17
Function 4: Baud Rate Tests ............................................ 7-20
Troubleshooting the Baud Rate Circuits ................................. 7-22
Function 5: ROM Part Numbers ......................................... 7-23
Troubleshooting: General Information ......................................... 7-23
Power-Up Checksum Test ................................................ 7-24
SECTION 8 MAINTENANCE: DIAGNOSTIC TEST DESCRIPTIONS
SECTION 9 REFERENCE INFORMATION
Error Codes and Indicators ................................................. 9-1
Error and Prompter Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 9-1
ROM Checksum Codes .................................................. 9-1
Test Point, Jumper and Adjustment Locations .................................. 9-2
I/O Maps .............................................................. 9-2
Signal Glossary ........................................................... 9-3
SECTION 10 REPLACEABLE ELECTRICAL PARTS
SECTION 11 DIAGRAMS AND CIRCUIT BOARD ILLUSTRATIONS
SECTION 12 REPLACEABLE MECHANICAL PARTS
iii
Option 06 I/O Interface Service
LIST OF ILLUSTRATIONS
Figure Page
No.
1-1 Option 06 I/O Communication Interface location .......................... 1-2
3-1 Option 06 I/O Communication Interface with LED Indicators, Address Switches,
GPIB Connectors, and RS-232 Connectors. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 3-1
3-2 Address switch settings for GPIB address 12 ............................ 3-2
3-3 Location of the Color Video Signal Jack . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 3-5
4-1 Option 06 I/O Communication Interface block diagram ..................... 4-2
4-2 Smart Port Controller block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 4-7
4-3 Smart Port Controller Programming Model of Programs Written by the DAS Z80 and
Executed by the S PC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 4-8
4-4 Smart Port Controller timing diagram for the instruction LOAD DATA REGISTER 4-14
5-1 DAS rear panel GPIB address switch set to 1 ............................ 5-2
5-2 DAS rear panel GPIB address switch set to 31 ........................... 5-2
5-3 Null modem circuit for modem output configuration for a 4051, Option 01 ..... 5-3
5-4 Null modem circuit for terminal output configuration of a 4051, Option 01 . . . . .. 5-4
6-1 Top panel and module compartment cover removal . . . . . . . . . . . . . . . . . . . . . . .. 6-4
6~2 Installing an instrument module in the mainframe. . . . . . . . . . . . . . . . . . . . . . . . .. 6-5
6-3 Removing an instrument module from the mainframe ...................... 6-6
6-4 Installing the I/O communication interface board .......................... 6-7
6-5 Removing the I/O communicatiom interface board . . . . . . . . . . . . . . . . . . . . . . . .. 6-8
7-1 Control line timing diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 7-8
11-1 A41 A 1 I/O Communication In terface Board Component locations
11-2 A41 A02/03 I/O Connector Panel Board Component Locations
iv
Option 06 1/0 Interface Service
LIST OF TABLES
Table Page
No.
1-1 Electrical Specifications-Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 1-4
1-2 Electrical Specifications-RS-232 Data Terminal Equipment Port .............. 1-5
1-3 Electrical Specifications-RS-232 Data Communication Equipment Port. . . . . . . .. 1-6
1-4 Electrical Specifications-GPIB .......................................... 1-6
1-5 Electrical Specifications-Color Signal Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 1-7
4-1 I/O ROM Select Codes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 4-3
4-2 DAS 9100 Series GPIB Interface Function Subsets. . . . . . . . . . . . . . . . . . . . . . .. 4-4
4-3 TMS9914 Pin FunctionS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 4-5
4-4 Partial DAS Port Assignments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 4-10
4-5 Smart Port Controller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 4-13
4-6 8251A Pin Functions ................................................. 4-17
5-1 GPIB and RS-232 Test Program ....................................... 5-5
5-2 SPC Test Program .................................................. 5-8
6-1 Relative Susceptibility of Semiconductors to Static Discharge Damage ........ 6-2
7-1 SPC Components ................................................... 7-11
7-2 GPIB Stimulation Program ............................................ 7-17
7 -3 Baud Rate Tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 7-22
9-1 Error and Prompter Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 9-1
9-2 ROM Checksum Error Codes ......................................... 9-1
9-3 Partial DAS Port Assignments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 9-2
11-1 Option 06 I/O Communication Interface GPIB
11-2 OPTION 06 I/O Communication Interface SPC
11-3 OPTION 06 I/O Communication Interface RS 232
v
Option 06 1/0 Interface Service
OPERATOR'S SAFETY SUMMARY
See the Operator's Safety Summary at the front of the DAS 9100 Series Service Manual.
SERVICE SAFETY SUMMARY
(FOR QUALIFIED SERVICE PERSONNEL ONLY)
See the Service Safety Summary at the front of the DAS 9100 Series Service Manual.
vi
Description:Products of Tektronix, Inc. and its subsidiaries are covered instrument in Tektronix Standard 062-2853-00, including the specifications pertaining to the lustrated; the lookup table will list the diagram number of other diagrams that the circuitry of the circuit board appears on. + 1 ~~" poe. 1,1