Tektronix DF 1 User manual

TEKTRONDG
DF 1
DISPLAY FORMATTER
WITH OPTIONS
INSTRUCTION MANUAL
Tektronix, Inc.
P.O. Box 500
Beaverton, Oregon 97077 Serial Number _
070-2150-00
First
Printing
DEC
1976

WARRANTY
All
TEKTRONIX
instruments
are
warranted
against
defective
materials
and
workmanship
for
one
year.
Any
questions
with
respect
to
the
warranty
shouid
be
taken
up
with
your
TEKTRONIX
Field
Engineer
or
representative.
All
requests
for
repairs
and
replacement
parts
should
be
directed
to
the
TEKTRONIX
Field
Office
or
representative
in
your
area.
This
will
assure
you
the
fastest
possible
service.
Please
include
the
instrument
Type
Number
or
Part
Number
and
Serial
Number
with
all
requests
for
parts
or
service.
Specifications
and
price
change
privileges
reserved.
Copyright
©
1976
by
Tektronix,
Inc.,
Beaverton,
Oregon.
Printed
in
the
United
States
of
America.
All
rights
reserved.
Contents
of
this
publication
may
not
be
reproduced
in
any
form
without
permission
of
Tektronix,
Inc.
U.S.A.
and
foreign
Tektronix
products
covered
by
U.S.
and
foreign
patents
and/or
patents
pending.
TEKTRONIX
is
a
registered
trademark
of
Tektronix,
Inc.

PAGE
LIST OF ILLUSTRATIONS. 4 2 secre eee ee me te ew wes ii
LIST OF TABLES aaw sci a wwewe ee es wwe ee ee we iii
OPERATORS SAFETY INFORMATION. ..........0 005 iv
SERVICE SAFETY INFORMATION ....... 0.00000 eeu v
SECTION 1 GENERAL INFORMATION
INTRODUCTION. ... 2... 0.00. eee ee ee 1-1
GLOSSARY OF TERMS. .........0 00080000 1-1
INSTALLATION: «65s saws ete www ee es ee 1-2
PACKAGING FOR SHIPMENT. .........0+000058 1-2
SPECIFICATION @ 6 ¢ «i sewed oo ew ee Hw 1-4
STANDARD ACCESSORIES «265 ice esi ee he we 1-6
RECOMMENDED ACCESSORIES. .........00 0005 1-7
SECTION 2 OPERATING INSTRUCTIONS
CONTROLS AND CONNECTORS. ..........000058 2-1
INTERNAL «2.0 22 tc uwem soe awe ds vs a ew 2-1
EXTERNAL... 6 sci d woe FETS DH EET ER OR 2-1
DETAILED OPERATING INSTRUCTIONS .......... 2-4
POWER-ON MODE... 1... eee ee ee 2-4
DISPLAY MODES .......... 0.0.0 eee eens 2-4
Timing Diagram Displays... ........ 050 e ee 2-4
Mais . mui ees Hew Bee ww ee 2-4
State Table Displays «cw ss cs wae ee ss ww 2-4
7D01 ONLY: <3: wee eo Ra Bw wwe 4 es BS 2-6
7D01 @INTENS REF « «sac awew cei e owes 2-6
REF TABLE FOLLOWS 7D01............ 2-6
REF TABLEHELD .......... 00002 eee 2-6
REF TABLE FOLLOWS WITH/OFFSET...... 2-7
SEARCH, «sis eww 6 ses eww ee eee 2-7
RESET IF TABLES=,. 2.2. eee ee aaa wee s 2-7
RESET IF 7DOI=REP: : 2.5 sme ee ea ews 2-7
STORE 7001+ REF «i iis vweew ct ts sms 2-7
COLUMN BLANKING. ..........0.5 000% 2-8
LOGIGISTATES: ..ccs ee ee ERR 2-8
Size and Position Adjustment... .......0000% 2-8
Error Message Displays... . 2... 0... eee eee 2-8
FUNCTIONAL: CHECK 5 ccctcie en 6 eo eee ee we es 2-9
SETUP PROCEDURE eeu ce ca ewe, bee wee 2-9
TIMING DIAGRAM DISPLAY... . 2... 2.0.0 ee eee 2-9
MAP DISPLAYS... snc ise eee REET Eww 2-9
STATE TABLE DISPLAYS. ........0 00 ce eee 2-10
FRONT-PANEL ADJUSTMENTS ..........004 2-12
THE REMAINING PORTION OF THIS TABLE OF CONTENTS
LISTS THE SERVICING INSTRUCTIONS. THESE SERVICING
INSTRUCTIONS ARE FOR USE BY QUALIFIED PERSONNEL
ONLY. TO AVOID ELECTRICAL SHOCK, DO NOT PERFORM
ANY SERVICING OTHER THAN THAT CALLED OUT IN THE
OPERATING INSTRUCTIONS UNLESS QUALIFIED TO DO SO.
DF 1 Instruction
OF CONTENTS
PAGE
SECTION 3 THEORY OF OPERATION
FRONT PANEL. ....... 0.00 eee eee eee eee 3-1
DATA ACQUISITION 3.66 cs ue egy 6 et wr we 3-1
MPU, PROGRAM, AND DATA STORAGE......... 3-2
VERT AND HORIZ DISPLAY OUTPUT .......... 3-2
CHARACTER MEMORY AND GENERATOR....... 3-3
DISPLAY CONTROL AND Z-AXIS... ..... 00005 3-3
DISPLAY 0 0 we ck ee en ee we es 3-4
SECTION 4 MAINTENANCE
PREVENTIVE MAINTENANCE...........0 00005 4-1
CLEANING 2: iis ieee bes HH ET ee DRE OS 4-1
VISUAL INSPECTION: j.2 5 ss sea eie eo as wee eee 4-1
SEMICONDUCTOR CHECKS. 5 is cece i ea tew ees 4-1
TROUBLESHOOTING. ..... 0.0. eee eee 4-2
TROUBLESHOOTING AIDS......... 00000 ee 4-2
TROUBLESHOOTING EQUIPMENT ............ 4-2
TROUBLESHOOTING TECHNIQUES ........... 4-3
Troubleshooting with the System Text Fixture... .. 4-4
CORRECTIVE MAINTENANCE. .........-.00056 4-14
OBTAINING REPLACEMENT PARTS .......... 4-14
SOLDERING TECHNIQUES..............04. 4-14
COMPONENT REMOVAL AND REPLACEMENT... . 4-15
Circuit Boards... 1... 4-15
Pushbutton Switches: sss sce eet wee ot 4-18
SemiconG@uctorsis oa 6 6s mim mw eso eM LE ® 4-18
Interconnecting Pins. 2. sc wae ee ee ee eww 4-19
ADJUSTMENT AFTER REPAIR. ...........0% 4-20
SECTION 5 PERFORMANCE CHECK AND ADJUSTMENT
PRELIMINARY INFORMATION ..........0004 5-1
Adjustment Interval .. 2... ee ee ee 5-1
Tektronix Field Service i. cw se ke ei eo 5-1
Performance Check: i si. sim mgs Hem wee 5-1
Adjustment Procedure... .... 0 eee eee ees 5-1
Partial Procedure «is i i See La Rw ODE Yas 5-1
TEST EQUIPMENT REQUIRED............... 5-2
INDEX TO PERFORMANCE CHECK AND
ADJUSTMENT .. 0... 5-3
PRELIMINARY PROCEDURE.............00- 5-3
PERFORMANCE CHECK PROCEDURE.......... 5-4
ADJUSTMENT PROCEDURE «..6:2: i wea we cas 5-8
SECTION 6 REPLACEABLE ELECTRICAL PARTS
SECTION 7 INSTRUMENT OPTIONS
SECTION 8 DIAGRAMS AND CIRCUIT BOARD
SECTION 9
ILLUSTRATIONS
REPLACEABLE MECHANICAL PARTS
CHANGE INFORMATION

DF11 Instruction
FIGURE
NO.
Frontis-
piece
1 4
NN
NNNNNS-
ud
GhoOnv=n-
N
oo
LIST OF ILLUSTRATIONS
PAGE
DF1 Features «ss aaeigs wee ek me ee vi
Attaching the DF1 to the 7D01......... eee «led
DF1 dimensional drawing . 4 BI % 8% SMR Fs 1-5
Location of the Readout Source multi- -pin jumper. .2-1
Front-panel controls, connectors, and indicators. . . .2-2
Typical DF1 Display Modes.......... 0000 ae 2-5
Typical map display usage... 11. ee ee ee ee 2-6
Typical state-table display showing offset between
the 7D01 and reference state tables... ......... 2-7
Test setup for Functional Check procedure...... 2-10
Typical map display of 16 channels from the
067-0804-00 Interface Test Fixture .......... 2-11
Typical map display of 15 channels from the
067-0804-00 Interface Test Fixture (channel 5
input discorinected)< «i056 ssw 2 ss wwe 2-11
Test equipment setup for troubleshooting the
DF1 Digital Formatter... 6... ee ee 4-5
Partial view of Intelligence circuit board. Shows pin
location and indexing for connection to the Interface
Test Fixture ss. siscahy ss i Sw we ee ww Cee 4-5
Location of readout source multi-pin jumper...... 4-9
Circuit board locations... ....... 000 e eee 4-16
Locations of securing screws on the front sub-panel . 4-17
Locations of securing screws on A2 Button Lights
Circuit board. sew ew eee ewe ee wm eS 4-17
Locations of hex securing spacers and wiring to be
disconnected on A1 Formatter Keyboard circuit
DOA... .. www POTTER TG aww Ges 4-18
Locations of securing screws on A3 Intelligence
circuit board. . 0... ee 4-18
Locations of securing screws and hardware mounting
screws on A4 Acquisition circuit board
FIGURE
NO.
-10
1
-2
3
4
gq
age
PAGE
Exploded view of circuit-board pin and ferrule. . . . 4-20
Location of 7D01 Full Display/First Trigger jumper . .5-4
Test setup for Performance Check and Adjustment
Procedure «6% 6 6 se wr ses eee eh ee 5-5
Hexadecimal State Table display ..........0005 5-6
Reset Out check test setup. . 6... ee ee es 5-7
The illustrations in Section 8 are located near their associated dia-
grams on the foldout pages.
2
3300
Uhh
b&b
ON
gocmam
momma
ao
md
-O
:
e a N
8-13
Semiconductor lead configurations.
Circuit board locations.
A1—Formatter Keyboard circuit board locations as viewed
from front of instrument.
A2—Button Lights circuit board component locations as
viewed from the component side of the board.
A4—Acquisition circuit board component locations.
A3—Intelligence circuit board component locations.
Partial A4—Acquisition circuit board. Component loca-
tions as viewed from component side of the board.
A4—Acquisition circuit board component locations.
A3-—Intelligence circuit board component locations.
A4—Acquisition circuit board component locations.
Partial A3—Intelligence circuit board. Component loca-
tions as viewed from the component side of the board.
Partial A4—Acquisition circuit board. Component loca-
tions as viewed with board installed.
Partial A3—Intelligence circuit board component
locations.

DF1 Instruction
LIST OF TABLES
TABLE
PAGE NO. PAGE
Electrical Characteristics... 0... eee ee te es 1-4 4-4 Keyboard Circuit Checkout Procedure.......... 4-7
Environmental Characteristics... ........2004 1-5 4-5 Manual Clock Pulses Required To Control
Physical Characteristics... .. 0... eee eee 1-5 Button Lights ae sc is wee ¢ ss hee wm =e 4-8
Data Acquisition Address Decoder............ 3-1 4-6 Formatter Readout Truth Table ...........0. 4-9
Error Messages and Responses.............005 4-2 4-7 Mainframe Readout Truth Table............ 4-10
Hex-to-Binary Conversion. .........05 a 4 Sw 4-6 5-1 Performance Check Description.............. 5-1
ROM Hexadecimal Output Program ........... 4-7 5-2 Test Equipment... . 0... 0... eee ee ee ee 5-3

DF1 Instruction
OPERATORS SAFETY INFORMATION
The following general safety information is provided to ensure safe operation of this instrument and applies to all operators
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.
The following safety symbols may appear on the equipment:
Z\ CAUTION-—Refer to manual
SS DANGER-High voltage
@) Protective ground (earth) terminal
Other warning symbols where they apply.
Ground the Instrument
To reduce electric-shock hazard, the mainframe (oscilloscope) chassis must be properly grounded. Refer to the mainframe
manual for grounding information.
Do Not Operate in Explosive Atmosphere
Do not operate this instrument in an area where flammable gases or fumes are present. Such operation could cause an
explosion.
Do Not Remove Instrument Covers
To avoid personal injury, do not operate the instrument without covers installed. Do not perform any servicing other than
that contained in the Operators Manual unless you are qualified to do so.
Do Not Service or Adjust Alone
Do notattempt internal service or adjustment unless another person, capable of rendering first aid and resuscitation, is present.
CAUTION
Prevent Instrument Damage
To prevent instrument damage, plug-in units should not be installed or removed without first turning off the mainframe power.
iv @

DF11 Instruction
SERVICE SAFETY INFORMATION
The following are safety precautions which appear in the servicing information sections of this manual. This Service Safety
Information is in addition to the Operators Safety Information given previously.
To avoid electric shock, disconnect the instrument from the power source before soldering or replacing components.
; CAUTION
RAPPALLPLPLPSO
Disconnect Instrument Power
Use Proper Cleaning Agents
Avoid the use of chemical cleaning agents which might damage the plastics used in this instrument. Use a non-residue type of
cleaner, preferably isopropyl alcohol, total denatured ethy/ alcohol, or TP35. Before using any other type of cleaner, consult
your local Tektronix Service Center or representative.
Exercise Care When Checking Diodes
Do not use the ohmmeter on scale that has high internal current. High currents may damage the diode.
~\Exercise Care When Soldering on Multi-layer Boards
The Acquisition, Intelligence, and Button Lights circuit boards in this instrument are multi-layer type boards with a
conductive path(s) laminated between the top and bottom board layers. All soldering on these boards should be done with
extreme care to prevent breaking the connections to the center conductor(s),; only experienced maintenance personnel should
attempt repair of these boards.
Do Not Use Pin Sockets for Connection Points
The spring tension of the pin sockets ensures a good connection between the circuit board and the pin. This spring tension
can be destroyed by using the pin sockets as a connecting point for spring-loaded probe tips, alligator clips, etc.

DF1 Instruction
HERR? OUT
PLAY
Ponmarren
FEKTBONIK
2h Ss
DF1 FEATURES
The
DF1
Display
Formatter
provides
data-domain
display
modes
in
addition
to
the
existing
time-domain
display
of
the
7D01
Logic
Analyzer.
It
adds
state
table
displays
with
a
comparison
mode,
and
a
map
display.
The
DF1
attaches
to
the
left
side
of
the
7D01,
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
DF1,
is
capable
of
recording
two
7D01
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.
This
data
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
7D01
memory
(7D01
display).
The
right-hand
table
displays
data
that
has
been
transferred
from
previous
7D01
displays
to
the
DF1
memory
(reference
display).
The
DF1
compares
the
2
tables
and
resets
the
7D01
when
the
7D01
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 7D01

Section 1—DF1
GENERAL INFORMATION
INTRODUCTION
The Operator’s Manual contains information necessary to
effectively operate the DF1 Display Formatter unit and is
divided into three sections: Section 1 provides packaging
for shipment information, specifications, and a list of
standard accessories. Section 2 contains operating infor-
mation. Information concerning available options is located
in Section 3.
The Instruction Manual contains nine sections. Operating
information is covered in the first two 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 isa computer printout and uses computer-supplied
\ abbreviations.
GLOSSARY OF TERMS
The following logic terms are used throughout this manual.
Asynchronous Mode—The data is acquired by the 7D01
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 7D01 memory and the
reference memory for equality (a microprocessor function.)
Data—This is information acquired by the 7D01. 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 7D01
memory or the DF1 memory. (A Data Record has 4096
bits of information.)
Data Word—This is Good Data that may be formatted in
any of three different ways:
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.
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 excluded from
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.
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 7D01 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 7D01.
Old Data—Data which was part of a previous Data Record
in the 7D01 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
“Xin the display.
Reference State Table—A display of DF1 memory data
transferred from a previous 7D01 display and displayed on
the right half of the crt.
Synchronous Mode—The data is acquired by the 7D01
using an externally supplied clock signal (7D01 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).
Word—See Data Word.
1-1

General Information—DF1
INSTALLATION
The DF1 Display Formatter attaches to the left side of the
7D01 Logic Analyzer to make a three-wide plug-in system.
The two units latch together to provide a rigid instrument
that plugs into a 7000-series mainframe. Refer to Figure 1-1
to attach the DF1 to the 7D01.
CAUTION
To prevent instrument damage, plug-in units
should not be installed or removed without first
turning off the mainframe power.
To install the DF1/7D01, 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 DF1/7D01 should be
flush with the front panel of the oscilloscope mainframe.
NOTE
When installed in a four-compartment main-
frame, the DF1/7D01 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 DF1/7D01, pull the release latch (located
on the lower left corner of the 7D01) to disengage the
DF1/7D01 from the mainframe. Then, gently slide the
plug-in units from the mainframe.
1-2
PACKAGING FOR SHIPMENT
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.