Tektronix DF2 User manual

Tektronix, Inc .
P .O . Box500
Beaverton, Oregon

97077

Serial Number

------ -_ .__
._
070-2478-00

First Printing JAN 1978
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TI N MANUAL

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Page
LIST OF ILLUSTRATIONS ....... . ... . . . . ....

ii
LIST OF TABLES ......... . . . .... . . . . ......
iii
SAFETY INFORMATION . . . . ...... .......... iv
SECTION 1

GENERAL INFORMATION
SECTION
2

OPERATING INSTRUCTIONS
Front Panel Controls
. . . . . . .......
2-1
Internal . . . . . . .
............. 2-1
External . ..... .............
2-1
Basic Operating Instructions ........
2-4
Power-On-Mode . .
............
2-4
Display Modes
............... 2-4
Timing Diagram Displays ..... . 2-4
Map Displays ..............
2-4
State Table Displays ......... .
2-4
Menu Displays ............
. 2-8
Size and Position Adjustment ...
2-8
Error Message Displays ..... . . .
2-8
Basic Functional Check ........ ...
2-9
Setup Procedure ........... . . .
2-9
Timing Diagram Displays ..... ...
2-9
Map Displays ........... . . . . . 2-9
State Table Displays ........... .2-10
Front Panel Adjustments ...... .
.2-11
Irregular Operating Symptoms .... . . .2-12
SECTION 3

DETAILEDOPERATING
INSTRUCTIONS
FOR GPIB
Introduction
. . . . .... ... . .......
1-1
Glossary of Terms .... ........... 1-1
Installation . . . . . . ... . . . ........ 1-2
Packaging for Shipment . . ......... 1-2
Specifications ..... . . ...........

1-4
Standard Accessories . . .......... .
1-6
GPIB Overview ............ .
....
3-1
General ........... . ... . . . . . 3-1
Mechanical Elements .... . . ... . . 3-1
Electrical Elements ..... . . . . . . . 3-1
Functional Elements ...... . . . . . 3-2
GPIB Line Definitions ..
... ... 3-2
ATN (Attention) Messages . . . . .
3-4
Interface Functions .... .
. . . . . 3-4
Setup Procedure for GPIB
Operation
. . . 3-5
Full Display/First Trigger Selector
of 7D01
Logic Analyzer . . . . . . . . 3-5
GPIB
Adapter
.......
. .. .
. . ... 3-5
Installation of
GPIB Adapter . . . . 3-8
7D01 Front Panel ...... .. . . . . . 3-8
GPIB Acquisition and Display ... . ... 3-8
General
...........
. . . . ..... 3-8
Menu Display
.......
. . ..
.
. ...
3-8
ntent
D F2
Page
SECTION 3

DETAILED OPERATING INSTRUCTIONS
FOR GPIB (cont .)
GPIB
Display ................
3-8
GPIB Crt Display
............
3-10
Control Lines (Channels 4-7) . .3-10
Data Bus Lines (Channels8-15)3-10
Device Dependent Messages ... 3-13
User Definable Lines
(Channels 0-3) ...........
3-13
Secondary Functions of Display
Push Buttons

.............
3-15
GPIB Triggering

................
3-15
General Description and Features ... 3-15
ATN (Attention) Message Triggering .3-16
Triggering
on
Any ATN Message . .3-16
Triggering on
Any ATN Message
Group ..................
3-16
Triggering on A Specific ATN
Message
.................
3-18
NON-ATN
Message
Triggering .... .3-20
Triggering on
Any NON-ATN
Message ..... . . . . . . . . . . .
.3-20
Triggering on
A Specific NON-ATN
Message . . . ... ... . . . . . . .
.3-20
Control Line Triggering .... . . . . .
3-20
GPIB Timing

........
. . . ..... . . 3-21
Correct Handshake

. . .... . . . ... 3-21
Asynchronous Triggering ..... . . . 3-21
Time Measurements ...... . . . ... 3-23
Error Message Display

..... . . . . ...
3-27
Requires 16 Channel Mode . . . . . . .
3-27
Irregular Operating Symptoms
for GPIB 3-28
GPIB Applications ........ . . . . ... 3-29
Procedure

. ...... . . ... ..... . 3-29
Possible Causes ....
..... . ... . . 3-29
GPIB Functional Check ..... . ... . . 3-30
SECTION
4

DETAILED OPERATING INSTRUCTIONS
FOR ASCII
ASCII Acquisition and Display ..... . .
4-1
General ... . ... . . .......... .
4-1
Menu Display . . . .............
4-1
ASCII Display . . . . . . . .........
4-1
ASCII Crt Display ...........
4-1
Secondary Functions of Display
Push Buttons .............
4-6
ASCII Triggering ................
4-8
8 Channel ASCII Triggering .......
4-8
16 Channel ASCII Triggering ..... .
4-8
Trigger Word ............. .
4-9
Negative Logic ASCII
Triggering
... .
4-10
Error Message Display

........... .
4-10
Requires 8 or 16 Channel
Mode
... .
4-10
Irregular Operating Symptoms
for ASCI I....................
4-11
ASCII Functional Check ........... 4-12

DF2
THE
REMAINING PORTION OF THIS TABLE OFCONTENTS
LISTS THESE RVICING INSTRUCTIONS . THESE SERVICING
INSTRUCTIONS ARE FORUSEBY QUALIFIED PERSONNEL
ONLY .
T O AVOID ELECTRICAL SHOCK, DO NOT PERFORM
ANY
SERVICING OTHER THAN THAT CALLED OUT IN THE
OPERATING
INSTRUCTIONS UNLESS QUALIFIED TODO SO .
SECTION 5

THEORY
OF OPERATION
SECTION
6
SECTION
7
Page
Front Panel .... . . . . . .......... 5-1
Data Acquisition . . . . . . . ......... 5-1
SECTION 8
SECTION
9

REPLACEABLE
ELECTRICAL PARTS
SECTION 10 DIAGRAMS AND
CIRCUIT BOARD
ILLUSTRATIONS
SECTION 11 REPLACEABLE
MECHANICAL PARTS
CHANGE
INFORMATION
Lit f Illustration
Page
Figure
shooting
the DF Display Formatter ... 6-5
MPU,
Program, and Data Storage ..... 5-2
Vert and Horiz Display
Output ...... 5-2
Character Memory and Generator
..... 5-3
No .
Frontis-
Page
Display Control and Z-Axis
. . . . . . ... 5-3 piece
DF2
Features
...................
v
Display ............. . . . . .
. ...
5-4
1-1 Attaching the DF
to the
7D01 ....... 1-3
ROM Extension ........... ..
. . .
5-4
1-2 DF Dimensional Drawing .......... 1-5
2-1 Location
of the
Readout Source
MAINTENANCE
Multi-pin Jumper ............... 2-1
Preventive Maintenance . . . . . . . . .. .
6-1
2-2
Front Panel Controls, Connectors,
Cleaning
.............. . . . . . 6-1 and Indicators ................. 2-2
Visual Inspection ......... .
. . . .
6-1 2-2
(cont) Front Panel Controls, Connectors,
Semiconductor Checks .....
. . ... 6-1 and Indicators ................. 2-3
Troubleshooting ............. . . .
6-2 2-3 Typical DF Display Modes ......... 2-5
Troubleshooting Aids
........... 6-2 2-4 Typical Map Display Usage ......... 2-6
Troubleshooting Equipment ...... 6-2 2-5
Typical State-Table Display Showing
Troubleshooting Techniques ..... . 6-3
Offset Between 7D01 and Reference
Troubleshooting With the System
State Tables .................. 2-7
Text Fixture .............. 6-4
3-1 GPIB Connector ................ 3-2
Corrective Maintenance ...........
6-14 3-2 General Purpose Interface Bus Structure 3-3
Obtaining Replacement Parts
...... 6-14 3-3 Location of 7D01 Full Display/First
Soldering Techniques
........... 6-14
Trigger Selector
................ 3-6
Component Removal
and
3-4 GPIB
Adapter .................. 3-7
Replacement . . . .
. ........... 6-15
3-5 GPIB Operational Mode Display
......
3-9
Circuit Boards . .............
6-15
3-6 Changing 'Trigger Word Readout in
Push Button Switches
......... 6-18
GPIB Operation ................ 3-10
Semiconductors
... ......... 6-19
3-7 Typical DF GPIB Display Showing Dis-
Interconnecting Pins
......... 6-19
assembled Instructions in IEEE
Adjustment After Repair . . . .......
6-20
Standard 488-1975 Message Mnemonics .3-11
PERFORMANCE CHECK AND
3-8 Hex and Binary
to Mnemonic Message
ADJUSTMENT ConversionTable ...............
3-12
Preliminary
Information . . . . . . ..... 7-1
3-9 Hex and Binary
to ASCII
Adjustment Interval ... . . . . . . ...
7-1
Conversion
'fable . . ............. 3-14
Tektronix Field Service
... ... ... 7-1
3-10 GPIB
Handshake Timing Diagram ..... 3-22
Performance Check . . . . . . . . . . . .
7-1
3-11 GPIB
Handshake and ATN With
Adjustment Procedure ....... . . . 7-1
Associated State Diagrams . . ....... 3-24
Partial Procedure ........... .. . 7-1
3-11 (cont) GPIB
Handshake and ATN With
- rest Equipment Required ..... . . . 7-2
Associated State Diagrams . . . . . . . . . 3-25
Index to Performance Check and
4-1
ASCII Operational Mode Display
.....
4-2
Adjustment ............. . . . 7-3
4-2
ASCII State Table Displays of Hex,
Preliminary Procedure .......... 7-3
Performance Check Procedure ..... 7-4
Octal, and Binary Values . . .. .
. . . . .
4-3
Adjustment Procedure .......... 7-8 4-3
Changing Display Mode in ASCII
Operation . . . . . . . . . . . . . . . . . . . 4-4
INSTRUMENT OPTIONS
4-4 Hex
and Binary to ASCII Conversion . . 4-5
4-5 Octal
to
ASCII
Conversion . ..... . . . 4-6
6-1 Test Equipment
Setup for Trouble-

Figure

Figure
No .

Page No .
6-2

Partial View of ROM Extension Board .

10-8
Shows Pin Location and Indexing
for Connection to the Interface

10-9
Test Fixture ......... . . . . .... . 6-5
6-3

Location of Readout Source Multi-

10-11
pin Jumper . . . ..... . . . . . . ..... 6-9
6-4

Circuit Board Locations . . . . ... ... .6-16
6-5

Locations of Securing Screws on

10-12
the Front Sub-Panel .... . . . . . . . . .6-17
6-6

Locations of Securing Screws on A2
Button Lights
Circuit Board . . . . ... .6-17

10-13
6-7

Locations of Hex Securing Spacers and
Wiring to be Disconnected on A1

10-14
Formatter Keyboard Circuit Board . . .6-18
6-8

Locations of Securing Screws on A3
Intelligence Circuit Board and A5
ROM Extender Circuit Board ... . . . .6-18
6-9

Locations of Securing Screws and
HardwareMounting Screws on A4
Acquisition Circuit Board ........
6-19
6-10

Exploded View of Circuit Board Pin
and Ferrule ................
7-1

Location of 7D01 Full Display/First
Trigger Jumper .............
7-2

Test Setup for Performance Check
anAdjustment Procedure ........
7-3

Hexadecimal State Table Display . .
7-4

Reset Out Check Test Setup . . . . .
The illustrations in Section
10
are located near their
associated diagrams on
the
foldout pages .
10-1

Semiconductor lead configurations .
10-2

Circuit board locations .
10-3

A1-Formatter Keyboard circuit board
locations as viewed from front of
instrument
10-4

A2

Button Lights circuit board component
locations as viewed from the component
side of the board .
10-5

A4--Acquisition
circuit board
component
locations .
10-6

A3--Intelligence circuit board component
locations .
10-7

Partial A4-Acquisition circuit board .
Component locations as viewed from
component side of the
board .
Table
3-2
4-1
4-2
5-1
5-2
6-1
6-2
6-3
6-4
6-5
6-6
6-7
7-1
7-2
List
DF2
Page
A4---Acquisition circuit board
component
locations .
A3--Intelligence circuit board component
locations .
Partial A3- Intelligence
circuit
board .
Component locations
as viewed from the
component side of the
board .
Partial A4--Acquisition circuit
board .
Component locations
as viewed with board
installed .
Partial
A3-Intelligence circuit board
component locations
.
A2--Button Lights circuit
board component
locations, as viewed
from component side
of the board .
Minimum Clock
Pulses Required to
Display Data . . . . . . . . . . ... . .....
3-5
Irregular Operating
Symptoms for GPIB 3-28
Secondary Functions of Display
Push Buttons . . . . . . . ..... .... . 4-7
Irregular Operating Symptoms for
ASCII . ..... ., . . . . . . . . .  . .
.4-11
Data Acquisition
Address Decoder . . . . 5-1
Extended ROM
Decoder . . . ........ 5-4
Error Messages and Responses
. ...... 6-2
Hex to Binary Conversion ....... . . .
6-6
ROM Hexadecimal
Output Program ... 6-7
Keyboard Circuit
Checkout Procedure . . 6-7
Manual Clock Pulses Required
to Control
Button Lights .................
6-8
Formatter Readout
TruthTable ..... .6-10
Mainframe
Readout Truth Table ..... 6-10
Performance
Check Description ...... 7-1
Test
Equipment ................ 7-3
. .
. .
d
.6-20
.
7-4
No .
1-1
1-2
1-3
Electrical Characteristics
...... .
Environmental Characteristics
Physical Characteristics ........
. .
.......
. .
Page
. .
1-4
1-5
. . 1-5
. . . 7-5
2-1 Irregular
Operating Symptoms ...... .2-12
. . .
7-6
2-1 (cont) Irregular
Operating Symptoms ...... .2-13
. . .
7-7
2-1 (cont) Irregular
Operating Symptoms ...... .2-14

GEN RAL
Y IN
The following general safety information applies to all
operator and service personnel . Specific warnings
will be
found throughout the manual where
they apply and
should be followed in each instance .
WARNING statements identify conditions or practices
which
could result in personal injury or loss of life .
CAUTION statements identify conditions or practices
which could result in damage to the equipment or other
property .
The
word DANGER on the equipment identifies areas
of immediate hazard which
could result in personal injury
or loss of life .
NOTES identify a procedure, condition, statement,
etc ., which
may be essential for better understanding .
The following safety
symbols may appearon the
equipment .
GROUNDING
CAUTION-----Refer
to manual
DANGER--Nigh voltage
Protective ground (earth) terminal
Chassis ground
To avoid electric shock, plug in the power cord with its
grounding (earth) conductor before connecting to the
instrument input or output terminals .
Do not defeat the grounding connections .
USE THEPROPER POWER CORD
To avoid electric shock and fire hazard, use only the
power cord and connector specified for your instrument .
Use
only
a power cord in good condition
.
For detailed information on power connectors, see
appropriate (operators, servicing) instructions .
US THE PROPER FUSS
To avoid electric shock and
fire
hazard, use
only fuses
specified in parts list for your instrument, and identical in
the following respects :
A . Type : Slow blow, fast blow, etc .
B .
Voltage rating : 250 V, etc .
C
.
Current rating
Fuse replacement
procedures,
that require qualified
service personnel to perform, are described in theService
portion of the appropriate manual .
Disconnect the power input before replacing the fuse .
DO
NOT OPERATE IN
EXPLOSIVE
ATMOSPH
NOT S
DF 2
To avoid explosion, do notoperate this instrument in an
explosive atmosphere unless it has been certified forsuch
operation .
O NOTREMOVE COVERS OR PANELS
To avoid personal injury, do notoperate the instrument
without covers or panels installed . Do not perform any
servicing other than that contained in operating instruc-
tions unless you are qualified to doso .
RVICE ALONE
Do not attempt internal service or adjustment unless
another person
capable of
rendering first
aid
and
resuscitation is present .

DF2
Instruction
DF2FEATURES
2478-15
The DF Display Formatter provides data-domain display modes in addition to the existing time-domain display of the 71301 Logic
Analyzer .
It adds state table displays with a comparison mode, a map display and other operational modes as assigned to the Menu List . The DF attaches
to the left side of the 71301, forming a three-wide plug-in assembly . This assembly operates in a 7000-series oscilloscope mainframe to comprise
a complete 16-channel logic timing-state analyzer system .
A microprocessor controlled memory system, contained in the DF, is capable of recording two 71301 information records . Portions of both
information records may be displayed concurrently in a state table presentation .
State tables are displayed in terms
of
either hexadecimal, octal, or binary formats . Thisdata may be displayed in up to two tables of 17
lines
of
16-bit words each
.
The left-hand table displays data currently stored
in the 71301 memory (71301 display) . The right-hand table displays data
that has been transferred from previous 71301 displays to the DF memory (reference display)
.
The DF compares the 2 tables and resets the
71301 when the
71301 data
equals the reference
data
.
The
map
function plots a dot display of the
16 data channels
in X-Y coordinate points . Each dot location represents one possible combination
of
up
to 16
inputs to the 71301
.

The Instruction
Manual contains eleven sections . Operating
information is
covered in the first four sections ; servicing
information
is covered in the remaining seven sections .
Schematic diagrams are located
at the rear of the manual
and can be unfolded
for reference while reading other parts
of
the
manual . The reference designators and symbols used
on the schematic
diagrams are defined on the first page of
the Diagrams and Circuit
Board Illustrations section .
Abbreviations used in the
manuals, except in the parts list
and schematic diagrams,
comply with the American
National Standards Institute
Y1 .1-1972 publication . The
parts list
is
a computer
printout and uses computer-supplied
abbreviations
.
Throughout this manual the DF2 Display Formatter will
be referred to as the "DF ."
The following
logic
terms are used throughout this manual .
Asynchronous Mode-The data is acquired by the 71301
using its internal clock at a rate selected by its sample
interval control
.
Bit-The smallest increment of digital information .
Blanked Columns--The columns eliminated from the
memory by the COLUMN BLANK function .
Compare-A check between the 71301 memory and the
reference memory for equality (a microprocessor function .)
Data---This
is
informationacquired by the 71301 . Up to 16
channels of data may be acquired, and each data bit is one
clock period in the synchronous mode .
Data Record--All of the information stored in the 71301
memory or the DF memory . (A Data Record has 4096
bits of information .)
DataWord--This is Good Data that may be formatted in
any of three different ways :
U
TI N
GLOSSARY

F T
1 . A vertical slice of the Timing Diagram display .
2 . A coordinate point of the Map display .
3 . A horizontal line of characters in a State Table
display .
IN
NOTE
Channel 0 is the
top-most channel displayed in
TIMING
DIAGRAM format and is always
considered the least significant bit .
Don't Care Data--Invalid Data
that is excludedfrom
comparison in all comparison modes .
End Data---Data that fills out the last portion of a
table
when valid data ends before completion of the
table . This
is indicated by an "*" in the display .
Good Data--All data
which
is
not Invalid Data .
Section 1---DF2
Indeterminate Data--This is valid data but is considered
invalid because its location cannot be defined . This data is
indicated by an "X" in the display and occurs during sweep
retrace in Timing Diagram . The number of Indeterminate
Data bits for each position of the 71301 bits/channel switch
are : Two bits (254 bits/channel position), four bits (508
bits/channel position), and eight bits (1016 bits/channel
position) .
Invalid
Data--This
term describes a combination of Indeter-
minate Data, Old Data
(if any),
and
End
Data
.
New Data--The most recent acquisition of Good Data into
the 71301
.
Old Data--Data which was part of a previous Data Record
in the 71301
memory
but
is
out
of sequence . This
is
caused
by the arrival of the trigger before the
New Data has
completely filled the memory . Old Data is
indicated by
an
"X" in the display .
Reference State Table--A display of DFmemory
data
transferred from a previous 71301 display and displayed on
the right half of the crt .
Synchronous Mode--The data is acquired
by the 71301
using an externally supplied clock signal (71301 sample
interval switch set to external, and with the
external clock
signal connected to the clock input of the channel 0-7
Data Acquisition Probe) .
TABLE-This term refers only to the 17 lines
of data dis-
played on the left or right sides of the crt
an anyone time .
"TABLES-" refers to only the displayed data contained
in the two tables and should not be confused with the
total memory capacity .
Word-See Data Word .

General
Information-DF 2
IN ST LLATI N
NOTE
The DF
Display Formatter attaches to the left side
of the
7D01 Logic Analyzer to make a three-wide plug-in system .
Thetwo units latch together to provide a rigid
instrument
that plugs into a 7000-series mainframe .
Refer to Figure 1-1
to attach the DF to the 7D01
.
To preventinstrument
damage, plug-in units
shouldnot be installed
or removed without first
turning off the mainframe
power .
To install the DF/7D01, first turn
off the
power to
the
oscilloscope mainframe . Then, gently push the 2 plug-in
units into the
appropriate plug-in compartments until they
fit firmly . The front panels of the
DF/7D01 should
be
flush with the front panel of the oscilloscope
mainframe .
When installed in a four-compartment main-
frame, the DF%7D01 occupies the left vertical,
right
vertical, and A horizontal compartments
only
.
The oscilloscope mainframe vertical
mode
switch must be set to right and the horizontal
mode switch must be set to A .
To remove the
DF/7D01, pull the release latch (located
on the
lower left corner of the 7D01) to disengage the
DF/7D01 from the mainframe . Then, gently slide the
plug-in units from the mainframe .
A KA IN F

NI

N
If this instrument
is to be shipped for long distances by
commercial transportation,
it is recommended that the
instrument be packaged in
the original manner for maxi-
mum protection . The carton
and packaging material in
which your instrument
was shipped should be saved and
used for this purpose .
Also, if this
instrument is to be shipped to a Tektronix
Service
Center for service or repair, attach a tag to the
instrument
showing the following : Owner of the
instrument
(with
address), the name of an individual at your firm that
can
be contacted, complete instrument type and serial
number,
and a description of the service required
.
If the original packaging
is unfit for use or not available,
package the instrument
as follows :
1 . Obtain a carton of corrugated
cardboard with at least a
200-pound test strength and at least
6 inches larger than the
instrument dimensions to allow
for cushioning .
2 . Surround the
instrument with polyethylene sheeting to
protect the instrument
.
3 . Allow a 3-inch
cushion on all sides by tightly . packing
dunnage or urethane
foam between the carton and the
instrument .
4 . Seal the carton
with shipping tape or with an industrial
stapler .
5 . Mark the address
of the Tektronix Service Center and
your return address
on the carton in one or more locations
.

Slide
the movable latch on the top of the DF
forward
until it stops .
Continue
to slide the DF forward
until the jack at
the top rear
of the OF lines up with its
mating plug
on
the 71301 .
DF/71301
INSTALLATION
02
Figure
1-1 . Attaching the OF to the 71301 .
r -, l
General Information-131`2
Tilt the DF
and 71301 slightly and
place the bottom
two latches on the
D F into the bottom
two slots on
the 71301 . Gently
slide the OF forward
to just
engage the bottom
latches with the bottom
track on
the 71301 .
Gently press the
units together until the
connector
is properly mated and
the movable latch is
inserted
into the rail slot on
the 71301 .
Make sure the movable latch fits into the 71301 rail
groove and slide the movable latch toward the rear
along the rail groove until it stops . The OF and
71301
should now be latched together to form a
rigid
three-wide plug-in system .
(2150-10)2478-42 l