Tektronix 7D20 User manual

a
ana |
Pee
le
oe
|
7D20
2
‘Programmable Digitizer

T E K MANUAL
ORS  ~70~3g57- T~I GROUP
42
Fi r st Pr i nt i ng JUL 1982
Revi sed MAY 1983
7D20
Pr ogr ammabl e Di gi t i zer
Wi t h Opt i ons
Ser i al
Number
PLEASE
CHECK FOR CHANGE
I NFORMATI ON AT
THE REAR
OF THI S MANUAL
T~kt r onoc~

L_
I NST~UCTI E' ?NS
Ft ?R C . ~?~i 1Pt
: L~" ~' i NG THE
SOFTWARE/ FI RMYVAHL~
: PERFGR~i I ANCE
Rgf i dRT
Pl ease
t ype or pr i nt dear l y
.
We
a separ at e
Sof t wnr e/ Fi r mwer e Per f or mance
Repor t ( SFPR) f or each
pr obl em .
SECTI ON A
Fi l l i n t he aer i al
number of t he 7D20 PROGRAMt i AABt £
DI GI TI ZER . Pr een
t he 10 key on
t he
7D20
and copy t he ent i r e
I Me of Ver si on
I nf or mat i on,
beQi nnt ng
wi t h T£K17D20 .
111 .

SECTI ON
B
' Use your
compl et e company mai gng
addr ess . Pl ease i ncl ude t he name and '
phone number
of t he per son r epor t i ng
t he er r or . Al eo, be sur e t o f i l l i n
t he
name of t he per son
submi t t i ng t he
SFPR .
I V :

SECTI ON-
e
Check
t #~e r eason f or r epor t
end whet her t he er r or i s
r epr oduci bl e . We :
cannot pr oper l y evl auat e
t f i e Rr obi em
i f
we have
di f f i cul t y i n ~epr oduoi n~
t he er r or :
SECTI ON D
Gi ve a compl et e descr i pt i at of , t he
syst em conf i gur at i on
on whi ch - t he
~ pr obl em occur r ed . Pl ease i ncl ude
r el at 8d Per i pher al s,
i nt er l aces ; opt i ons,
and Oper at i ng syst em
.
Yi
.

SECTI ON E
Descr i be
t he pr obl em , compl et el y . i ncl ude any
i nf or mat i on whi ch mi ght t ~el p
. _
i n evakr at
ng t he er r or vvi t h t he Sf PR . I f you have
det er mi ned a pr ocedur et o
avoi d
t i t i e er r or condi t i on ; pl ease i ncl ude
t hi s pr ocedur e . I f
t hi s pr obl em
pr evef t t s
you f ~om, aceor t t pt i shf ng any usef ul
wor k wi t h t he pr oduct , pl ease
st at e t hi s f act
. Be sur e t o i ncl ude wi t h t he SFPR
eny i nf or mat i on ( Pr ogr ams,
l i st i ngs~' har d
copi es, et c . ) whi ch wi l l
hel p us' dupt i cat e your pr obl em
:
SECTI ON
F

'
Thi s
seCt f on i s f or use by Tekt r oni x
Lab 3cop~ Sof t war e
Mai nt enance
per sonnel . DO NOT WRI TE N THI S
SPACE :
Vl l l .

Mai l al t Copi es pf t he
Sof t war el Fi r mwar e Per f or mance
depor t t o :
TEKTRONi X, ~ I NC .
LAB ' SCOPt =S SOFTWARE
M' AI NT£NANCE
P
. O :
BOX 500 DEL . STA . 39- 285
SEAVERTON, OREGON 97077

“eo
"SEND TO: Texrnontx me. BOR SE Bas
DESCRIPTION OF PROBLEM:
“usr ENCLOSURES:
SCOPES ‘SOFTWARE MA
PO BOK 500 OBL. SYA. 38-206
97077.
BEAVERTON, OREGON
nie — ears
CITY:
a 9 Sion Ennenosemant
| REASON. FOR AEPORT:
| Sotrare/Fiernware Error.
PHONE:
FORM SUBMITTED BY: __ als DATE: po
os mE ERROR AEPRODUCIBLE? Ae
0 Yes O'Ne
Po
SYSTEM DESCRIPTION: therdnaie, sohwers, firmwere and host polated 3 te ‘the problem) '
UMAINFRAME SERIAL # MAINFRAME: -
: } . ue
oo INTERNAL USE ONLY
no (CO NOT. WRITE BELOW THIS LINE)
RESPONDER: DATE OF RESPONSE:
whe.
~
.
:
.
&
°
‘
.
’
.
.
oem
+
-
~
-
.
.
-_
«
DATE RECEIVED
SFPR #
SFPR LOG
i
\

TABLE
OF
CONTENTS
7D20 Oper at or s
Page
OPERATORS SAFETY SUMMARY . . . . . . . ............................. . . . . ~~~~ ~x
DESCRI PTI ON ....................... . ..
. . . . . ........................... . . . . . xi i
GENERAL
I NFORMATI ON
DESCRI PTI ON ........................... . . . . . . ................
1- 1
ORANGE COLOR USED I N THI S MANUAL . . . . ................
1- 1
TECHNI CAL MANUALS .................... . . . ...........~~~~~
1- 1
OPERATORS MANUAL .................. . . . . . . .............
1- 1
SERVI CE MANUAL ..................... . . . . . . .............
1- 2
I NSTALLATI ON . . . . . . . ........................... . . . . .
. . . ........ 1- 3
RACKMOUNT MAI NFRAMES .................. . . . . . . ......-~-~
1- 4
COMPATI BI LI TY . . . . ............................. . . . . . . ........
1- 4
PACKAGI NG FOR SHI PMENT .................... . . . ..........
1- 4
SPECI FI CATI ONS . . . . . . . . . . . . . . . ........................
. . . . . . ....... 1- 6
STANDARD ACCESSORI ES . . ........................... . . . ......
1- 12
OPTI ONAL ACCESSORI ES ( not i ncl uded) ............... . . . . . . . . .
1- 12
OPERATI NG I NSTRUCTI ONS
OPERATI ON ..... . . . . . . . . .... . . ...........................
. . . . 2- 1
CONTROLS AND CONNECTORS . . . ........................... . ~ - ~ 2- 1
DI SPLAY ................. . . . .
. . .
. . . . ........................
. . . . 2- 1
FUNCTI ON KEYS ......... . . . .
. . . . ........................... . 2- 8
ERROR MESSAGES
...... . . . . . . . . ........................... .
2- 8
GET- ACQUAI NTED
EXERCI SES
..... . . . . .......................~~~~~.
2- 9
PRELI MI NARY SET- UP
.......... . . . . . . . . .........................
2- 9
DI SPLAY
CALI BRATI ON ............ . . . . . .......................-
2- 10
DI SPLAY
ADJUSTMENT PROCEDURE ........................ 2- 11
I NI TI ALI ZE ............................
. . . . . . . . .................. 2- 14
OBTAI NI NG A
WAVEFORM DI SPLAY . . . . . . . . . . .................. 2- 16
EXERCI SES ...........................
. . . . . . . . .................. 2- 17
I NDEX . . . . . ..............................
. . . . . . . . .............. .
2- 17
EXERCI SE 1- USI NG THE VERTI CAL CONTROLS ................
2- 17
SETTI NG THE I NPUT COUPLI NG ......... . . . . . ............... 2- 19
HOW TO SET THE VZR ( Ver t i cal Zer o Ref er ence) ............
2- 19
CHANGI NG THE VERTI CAL SENSI TI VI TY
( VOLTS/ DI V) ........ 2- 21
USI NG THE VARI ABLE VOLTS/ DI V CONTROL . . . . ............
2- 21
EXERCI SE
2- USI NG THE AOR ( ACQUI RE) MODE . . . ............
2- 22
EXERCI SE 3- USI NG THE WAVEFORM MEMORY
. . . . . . ......... 2- 24
COPYI NG AND DI SPLAYI NG A WAVEFORM .... . . . . . .........
2- 25
A NOTE ABOUT THE DSW ( Di spl ayed
Wavef or m) ORDER .... 2- 27
EXERCI SE 4- CHANGI NG THE DESI GNATED
CURSOR
WAVEFORM . . . . . . . . . . . . . . ...........................
. . . . . . . . ... 2- 28
REV SEPT 82

7D20 Oper at or s
TABLE OF
CONTENTS ( CONT)
Page
OPERATI NG
I NSTRUCTI ONS ( CONT)
EXERCI SE 5- HOLDI NG A WAVEFORM I N MEMORY .......... .
. 2- 31
EXERCI SE 6- USI NG THE CURSORS .......................... . . 2- 32
CURSOR 1 ............... . . . . . . .............................
2- 32
CURSOR 2 AND THE
f
( f unct i on
shi f t ) KEY ................. 2- 34
USI NG THE CURSORS
I NDEPendent l y
OR
ALI GNed ......... 2- 36
EXERCI SE 7- USI NG THE CURSOR
WAVEFORM DI SPLAY
MODI FI ER KEYS .............
. . . . . . ............................. 2- 42
HOW TO VERTI CALLY REPOSI TI ON
THE CURSOR
WAVEFORM .............. . . . . . . . . . . . ........................
2- 43
HOW TO VERTI CALLY
EXPAND
OR
COMPRESS THE
CURSOR WAVEFORM ....... . . . . . . ..........................
2- 46
USI NG HMAG ( HORI ZONTAL
MAGNI FY) AND CURSOR
MOVEMENT
.. . .............. . . . . . . .......................... 2- 49
HMAG AND
THE REFer ence WAVEFORM ................... 2- 52
HOW
TO USE
HMAG ALL . . . . . . . . ..........................
2- 56
USI NG THE VS ( ver sus) FUNCTI ON . . . ....................... 2- 63
USI NG
THE REFer ence WI TH VS . . . . . ....................... 2- 65
VECTORS AND DOTS .......... . . . . . . .......................
2- 66
EXERCI SE 8- USI NG THE AVERAGE AND ENVELOPE
FUNCTI ONS AND
SET N .............. . . . . . . .................... 2- 67
EXERCI SE
9- DI GI TI ZI NG MODES AND THE TI ME/ DI V
CONTROL ............................ . . . . . . ....................
2- 72
REAL- TI ME AND EXTENDED REAL TI ME . ....................
2- 72
ROLL MODE AND EXTer nal CLOCK . . . . . . ....................
2- 72
EQUI VALENT TI ME MODE ............ . . . . . . .................
2- 73
EXERCI SE 10- SETTI NG THE TRI GGER POSI TI ON
............... 2- 74
EXERCI SE 11- USI NG THE HOLD NEXT . . . . . . . .................
2- 77
REAL- TI ME AND EXTENDED REAL TI ME
. . . . . ................ 2- 78
EQUI VALENT TI ME MODE ............. . . . . . .................
2- 78
ROLL MODE AND EXTer nal CLOCK .... . . . . . . . ...............
2- 78
EXERCI SE 12- USI NG THE EXTERNAL CLOCK . . . . ..............
2- 79
DETAI LED OPERATI NG I NSTRUCTI ONS ......... . . . . . . ..............
2- 81
I NTRODUCTI ON
.. . ........................ . . . . . .............. 2- 81
POWER- UP
.................................. . . . . . . . . ........... 2- 81
MENU FUNCTI ONS
............................ . . . . . . ........... 2- 83
MASTER
MENU SELECTI ONS ............... . . . . . . ........... 2- 83
1, #
STORE PANEL #
.................... . . . . . . ...........
2- 83
2, # RECALL PANEL
# ...................... . . . . . ......... 2- 84
3
DI SPLAY CAL PATTERN .................. . . . . . . ........ 2- 84
4
UTI LI TI ES
................................
. . . . . . ........ 2- 84
TEST

MENU ................................... : . . . . . .... .
2- 86
PROMPTS AND WARNI NGS ......................... . . . . . . ...~-
2- 88
DI SPLAY CALi br at i on ............................. . . . . . . . . . . .
2- 90
REV SEPT 82

7D20
Oper at or s
TABLE OF
CONTENTS ( CONT)
Page
OPERATI NG
I NSTRUCTI ONS ( CONT)
READOUT DI SPLAY .............................. . . .
............ 2- 91
CURRENT CONTROL SETTI NGS AND PROMPT FI ELD .........
2- 91
CURSOR
WAVEFORM PARAMETERS ............. . . . ........
. 2- 91
VERTI CAL CONTROLS . . . ........................... ~ ~ - ~ ~ ~ ~~~~~~
2- 92
SI GNAL CONNECTI ON ........................... . . . . . . .....~
2- 92
I NPUT CONNECTORS . . . . ........................... . . ~ ~ ~ ~ ~~~
2- 92
VOLTS/ DI V ( VARI ABLE) . . ........................... . . . . . ~ ~ ~ ~
2- 92
POSI TI ON ....... . . . . . . . . . . . ...........................
. . . . . . 2- 93
COUPLI NG ( I NPUT) . . . . . . . . . .............................. . .
. 2- 93
AOR ( ACQUI RE) GAI N . . . . . . . . . ...........................
. . . 2- 94
CH2 I NV .............. . . . . . . . . ...........................
. . . 2- 94
ACQUI RE MODE ............. . . . . . . . . . . .........................
2- 95
CH1 ~ 1 .................
. . . . . . . . ........................... 2- 95
BOTH .................... . ..
. . . . . ........................... 2- 95
ADD ~ 1 .................
. . . . . . . . . . . ........................
2- 95
CH2
~
2
....................... . . . . . ....................... .
2- 96
HOLD .............................
. . . . . ........................
2- 96
. f
( shi f t f unct i on) ..................
. . . . . . . . .....................
2- 96
TI ME/ DI V ............................
. . . . . .....................
2- 96
DI GI TI ZI NG MODES ................ . . . . . . . . ..........-~~.~~~~
2- 96
Ext ended
Real - Ti me Di gi t i zi ng ( ERD) . . . . . ..................
2- 98
TRI GGERI NG
............................ . . . . . ............ . .....
2- 99
SOURCE
............................. . . . . . . . . ...............
2- 99
COUPLI NG ........................... . . . . .
. . . ............. . 2- 100
MODE . .................................. . . . . .
.............. 2- 101
+SLOPE . . . ................................. . . .
. . . . . .......... . 2- 103
TRI G' D . . . . . . . ..............................
. . . . . . . . . . . ....... . 2- 104
LEVEL ... . . . . . ................................. . . . . .
. . . ....... . 2- 104
a
TRI G

POS ~
. . . .................................
. . . . . . ....... 2- 104
HORI Z POSI TI ON .................................
. . . . . . . . .... . 2- 105
VECTOR ... . . . . . . . . . .................................
. . . . . . .... 2- 105
MEMORY DI SPLAY . . . . . . . . . . . . . . . . . . . . . .............
. . . . . . . . . . 2- 105
COPY ........ . . . . . . ..............................
. . . . . . . . .
. 2- 106
CSW .... . . . . . . . . ..............................
. . . . . . . . .... . 2- 107
. f
CSW

REF

. .

. .

. . . . . . . .. .

.........

. .

.......

. .

....... . .

. . . . .

2- 107
CURSOR WFM ..... . . . . .
. . . ............................... .
.
.
. 2- 108
VPUP4 AND VPDNb ( Ver t i cal
Posi t i on Up and Ver t i cal
Posi t i on Down) ........ . . . . . . ..............................
. 2- 108
VCMP
4
AND VXPD
a
( Ver t i cal Compr ess and Expand) ..... .
2- 109
HMAG ( Hor i zont al
Magni f y) . . . . . ............................
2- 110
f , HMAG
ALL
. . ...........
. . . . . ............................
2- 110
VS
.................... . . . . . . ..............................
. 2- 110
REV SEPT 82

III

7D20
Oper at or s
TABLE
OF
CONTENTS
( CONT)
Page
OPERATI NG I NSTRUCTI ONS
( CONT)
CUR SO RS

........................
. . . ........................
. . 2- 112
CURSOR
COORDI NATES . . . . . . . , .zyxwvutsrqponmlkjihgfedcbaZYXWVUTSRQPONMLKJIHGFEDCBA   .
    .  , .  . 2_112
CURSORS
AND MAGNI FI ED
WAVEFORMS .....,. , , . , , ,,,,,,
2- 1
13
a 1~

. . . . . . . .
. . ...........................
. . ....
. . ........ . 2- 114
a2~ ...............................
. . . . . . . . ..............
. 2- 115
DON DO FF ......................
. . . . . ....................
. 2- 115
I N D E
Pendent ............
. . . . . . . . .
. . .....................
. . . 2- 115
A LI G
N

........ . .. .
. . . . . . . . . . . . . .................. .
. . . . . . . . . 2- 115
SET
N ......... . .
.... . . ...........................
. . .
..
. ..... . 2- 115
AVE
........... . . . ...........................
. . . . . .
........... . 2- 116
~ . AVE N ...................-...........
. . . . .................
. 2- 118
ENV
. . ..............................
. . . .......................
. 2- 118
f ,
ENV N ................
. . . . . . . . . .....................
. .
. . . . 2- 120
f
.
TEST
.... . .
.
..... . . ..
.
. ........................
. ........ . . . 2- 120
RQS
( REQUEST SERVI CE) .... . , . . , . , .  , .   ,...
 
2- 121
f
ROS # . .
..............................
. .
. . . ..... .... . . . . .
. . 2- 121
REMOTE
ONLY ( i ndi cat or ) ... . , . , . , .  , .  , . . . . , . ,
.
. _2_121
I D ( ADDRed
I ndi cat or ) . . . , . . , .  , .  , . . , . . . . _ . , . ,
. , 2- 121
EXT CLOCK
......... . . . . .
.... . . ....................
. . .........
2- 122
EXT TRI G
..... . . . . . . . . . .
. . . ......................
. ........... . 2- 123
G PI B

( connect or )
. . . . ...........................
. . . .. ........... 2- 123
OPERATI ONAL
THEORY
BLOCK DI AGRAM
DESCRI PTI ON
... . , .        , .  , .  , . , . , . . , 3- 1
OVERALL
BLOCK DI AGRAM
DESCRI PTI ON . . . , .  , .   3_1
CHARGE
COUPLED DEVI CE
( CCD) OPERATI ON
. . . .,.,,,...,,,,,,,
3- 4
DI GI TI ZI NG
MO DES ...................
. . . . . ......................
3- 4
WAVEFORM
DI SPLAY .......
. . . . . . . . ...........................
3- 11
GPI B
I N TR OD U
CTI O N ...............................
. . . ................

4- 1
KEY

FEATU
RES ......................
. .
. .. . .................. .

4- 1
SECTI ON
CONTENTS .......  . , .  , . _  .  , .  ,... . , ..
 .
4- 2
G
PI B

DES CRI PTI ON .........
. . . . . .
. . . ........................
. . ....
.

4- 2
POWER

U P .... .
. . . . . . . . . ...........................
. . .... . . .....

4- 3
GPI B MODE,
TERMI NATOR,
AND ADDRESS
SELECTI ON .....,..,
4- 4
ADDRESS
SELECTI ON ...... . , .  ,..  . . , . ,
.  , .
4- 5
TERMI NATOR
SELECTI ON .... . , ...  , _ .  ,..
.,_ . 
4- 6
MODE
SELECTI ON ....... .
. . . . . . . . . . ..........................
4- 6
ALTERNATE
GPI B STATUS
I NDI CATORS ......,,,,,,,. , , , , , , , . 4_~
REMOTE AND
LOCAL OPERATI ON .....  .  ,..  ...  .
q_~
I N DI CATO
RS . . . ..............................
. . . . . . . . ............

4- 8
GPI B
I NTERFACE FUNCTI ONS
........  , . , .    , .  ,..  . .  , . , q_g

7D20 Oper at or s
TABLE OF
CONTENTS ~CONT)
Page
GPI B ( CONT)
MESSAGES .... .
. . . . ......................... . . . . . .................
4- 9
GPI B
I NTERFACE MESSAGES .............. . . . . . ... . ~~~~~~~~~~~~~
4- 9
TALK
AND LI STEN ADDRESS ( MTA, MLA)
. . . ................. 4- 9
SERI AL POLL ENABLE COMMAND
( SPE) .... ................. 4- 10
GROUP EXECUTE TRI GGER ( GET)
.......... . . . . . ............. 4- 10
DEVI CE CLEAR ( DCL) . . . ...................... . . . . . . . . ~ ~ ~ ~ ~ ~ .
4- 10
SELECTED DEVI CE
CLEAR ( SDC) .............. . . . . . ......~~~~ 4- 10
I NTERFACE CLEAR ( I FC) . . . ................
. , ..... ...........
4- 10
DEVI CE- DEPENDENT MESSAGES .................... . . . . . ~~~~~~~
4- 11
I NTRODUCTI ON .......... . . . . ....................
. . . . . ...... .
4- 1 1
COMMAND USAGE ....... . . . . . . . .................... .
. . . ...
. 4- 11
QUERY USAGE .............
. . . ..................... . . . . .
.... 4- 13
DATA TRANSFERS
.......... . . . . .................. .
. .
. . . . .
. . 4- 16
Readout ....................
. . . ......:..............
. . . . . . 4- 17
Text .........................
. . . . ......................
. . . 4- 17
Wavef or ms .................. . . . . .........................
4- 19
Wavef or m
Cur ve ............... . . . ........................
4- 23
Wavef or m
Pr eambl e and Cur ve . . ........................~
4- 24
SERVI CE REQUESTS
....................... . . . .....................
4- 25
USI NG SRO . ...........................
. . ......................
4- 25
Ser vi c e
Request Masks .............. . . . . . . . . . . - ~ ~ ~ ~ ~ ~ ~ ~ ~ ~
4- 31
EVENT QUERI ES ........................
.
. ...................
4- 32
Event Cl assi f i cat i on ...................... . . . . . . . . . ~ ~ ~ ~ ~ ~ ~ ~
4- 35
Event Codes . . . . ........................
. . . .............. .
4- 36
USER- REQUEST FUNCTI ONS ................ . . . . ~~~~~~~~~~~~ ~
4- 37
COMMAND LI ST . . . . . . . . ......................
. . . . ............ .
4- 38
SAMPLE PROGRAMS . . . . . . . ......................
. ............
. 4- 77
I NTRODUCTI ON ..... . . . . . . . ....... . ............
. . . . ..........
4- 77
SAMPLE PROGRAM LI ST . . . ..................... . . . . . ~~~~~~~ 4- 77
4050- Ser i es Oper at i ng
Pr ogr ams ............... . . . . . . . ~ ~ ~ -
4- 78
4050- Ser i es Appl i cat i on
Pr ogr ams ................. . .......
4- 89
4041 Oper at i ng
Pr ogr ams . ....................... ~ ~ ~ ~ ~ ~~~
4- 97
4041
Appl i cat i on Pr ogr ams . . ..................... ~ ~ - ~ ~ ~ ~
4- 108
APPLI CATI ONS
APPLI CATI ON 1- MONI TORI NG
SLOWLY CHANGI NG EVENTS
WI TH THE 7D20 AND 7D1 1 ............. . . . . . . . . . . . . . . ~ ~ ~ ~ ~ ~ ~ ~ ~ ~
5- 1
I NSTRUMENTATI ON SET- UP #1 .............. .............~~~~~~~
5- 2
APPLI CATI ON 2- ULTRASONI C,
NON- DESTRUCTI VE TESTI NG
USI NG 7D20 . . . . . . .............. . ..............
. ............... .
5- 3
I NSTRUMENTATI ON SET- UP
#2 ................. . . . . . . . . . ~ ~ ~ ~ ~ ~ ~ ~
5- 4
APPLI CATI ON
3- MONI TORI NG I NTERCELLULAR
NEURONAL
DI SCHARGE
..... . .................... . . . . .......................
5- 6

7D20
Oper at or s
TABLE OF CONTENTS
( CONT)
Page
APPLI CATI ONS ( CONT)
APPLI CATI ON 4- MEASURI NG PULSE
JI TTER, FREQUENCY
SHI FT, AND AMPLI TUDE
VARI ATI ONS USI NG THE 7D20 .........
5- 7
APPLI CATI ON 5- AC LOADLI NE
ANALYSI S USI NG THE
7D20 AND 7A13 .....................
. . . . . . . . ...................
5- 9
I NSTRUMENTATI ON
SET- UP #5 ....... . . . . . . . . ...........~~zyxwvutsrqponmlkjihgfedcbaZYXWVUTSRQPONMLKJIHGFEDCBA"""""
5- 10
CALI BRATI ON
........................ . . .... . . ...............
5- 11
OPERATI ON
. . ........................... . . . . . ...............
5- 11
APPLI CATI ON
6- USI NG THE 7D20 WI TH THE 7854 FOR
WAVEFORM PROCESSI NG .................. . . . """"""""""""""""
. 5- 13
I NSTRUMENTATI ON
SET- UP #6 ................ . . ... . . . .....""""
5- 14
MANUAL
TRANSFER ....................... . . . . . . . . . . """"". .
5- 15
COMPUTER
CONTROLLED TRANSFER ....... . . .... . . .........
5- 15
VI
I NSTRUMENT
OPTI ONS
I NDEX
CHANGE
I NFORMATI ON
NOTE
Ser vi ce Per sonne%~ Ref er t o
t he 7D20 Ser vi ce Manual f or
i nf or mat i on
on i nst al l at i on, Theor y
of Oper at i on, Mai nt enance, Checks
and
Adj ust ment , Par t s Li st
and Di agr ams .
MANUALS ( St andar d
Accessor i es)
7D20 Oper at or s
7D20 Ser vi ce
RELATED
DOCUMENT
The t abbed " ACCESSORI ES"
page at t he r ear of t he
Ser vi ce Manual l i st s t he
Tekt r oni x par t number s
f or al l St andar d Accessor i es pr ovi ded
wi t h t hi s pr oduct .
Al so, Sect i on 1, Gener al
I nf or mat i on, cont ai ns a br i ef
basi c- cont ent descr i pt i on
f or
t he f ol l owi ng publ i cat i ons
:
REV
SEPT
82

Fi gur e No .

Page
1- 1

7D20 Rel ease
Lat ch ........ . . . .................. . ~~~~~~~~~~~~~~~
1- 4
1- 2

Di m ensi onal

Dr awi ng

................ . . . ........ . ~~~~~~~~~~~~~~ .

1- 13
2- 1

7D20 Cont r ol s and
Connect or s . . . . . . . . . . . . . . . . . . . . . . ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~
2- 2
2- 2

7D20 Di spl ay
........................... . . . . . . .. . ................
2- 6
2- 3

Power - up
SELFTEST PASS di spl ay ...... . . . . . . ..........~~~~~~~~ 2- 10
2- 4

DI SPLAY CAL adj ust ment s .............. . . . . . . . . . . . . . . - ~ ~ ~ ~ ~ ~ ~ ~ ~
2- 10
2- 5

7D20
MASTER MENU ........................ . . . ~~~~~~~~~~~~~~~
2- 11
2- 6

7D20 DI SPLAY CAL PATTERN ............. . . . . . . ........~~~~~~.
2- 11
2- 7

Adj ust

HO RI Z

CTR

. . . . . . . ...........................
. . . . . . ...... 2- 12
2- 8

Adj ust

H ORI Z

GAI N . . . .......................... . ~~~~~~~~~~~~~~ .

2- 12
2- 9

Adj ust
VERT CTR and VERT GAI N ............... . . . . . . . . . . . ~ ~ ~ ~
2- 13
2- 10

Adj ust VECT LI N .... . . . . . . . . . . . . . . . . . .....................
. . . . . . 2- 13
2- 11

Cor r ect l y adj ust ed DI SPLAY CAL
PATTERN ............. . . . ...... 2- 14
2- 12

Si ne- Wave di spl ay . . . . . . . . . . . . . ...........................
. . . ... 2- 16
2- 13

Ver t i cal cont r ol s ............. . . . . . ........ . ~~~~~~~~~~~~~~~~~~~~~
2- 18
2- 14

VARI ABLE VOLTS/ DI V r eadout . .............................~ ~
. ~
2- 21
2- 15

AOR MODE keys ......... . . .
. . . . . ...........................
. . . 2- 22
2- 16

MEMORY DI SPLAY keys ..... . . . . . . . . .................~~~~~~~~~~
2- 24
2- 17

Si ne- wave di spl ay ............
. . . . . . . . ...........................
2- 24
2- 18

CSW REF key ..................
. . . . . . . . ........................
2- 28
2- 19

Cur sor Wavef or m r eadout
.......... . . . . . . . . .......... . ~ . ~~~~~~- ~
2- 28
2- 20

The

H 0 LD

key .............................
. . . ..................

2- 31
2- 21

Cur sor 1 .................. . . . . . . . . . . .
. . . . . . . . ..................
2- 33
2- 22

Cur sor keys ..............................
. . . . . ..................
2- 33
2- 23

The shi f t f unct i on key ...................... . . ~~~~~~~~~~~~~~~~~~
2- 34
2- 24

Usi ng t he cur sor s t o
measur e di f f er ent par t s of t he
sa m e

Wavef or m
. . . . . . . .......................... . . . .
. . . . . . ......

2- 41
2- 25

Cur sor Wavef or m
keys ........................ . ~~~- ~~~~~~~~~~~~~
2- 42
2- 26

Condi t i ons
under whi ch t he CURSOR
WFM keys ar e act i ve
f or

~avef or m s

1

or

2

. . . . . . . . . . . . . . . . . . . . . ~~~~~~~~~~- ~~~~~~~~~~

2- 44
2- 27

Ver t i cal
compr ess and expand keys ......................~~ ~ ~ ~ ~ ~ 2- 46
2- 28

Hor i zont al
Magni f y key .... . . . . . . .............. . ~~~~~~~~~~~~~~~~~
2- 49
2- 29

R
EFer ence Wavef or m

key ................ . . . . . .... . ~~~~~~~~~~~~~
2- 52
2- 30

Hor i zont al
Magni f y ALL wavef or ms key . . . . ....................~
2- 56
2- 31

The VS
( Ver sus) key ..................... . . ~~~~~~~~~- ~~~~~~~~~~~
2- 63
2- 32

VECTOR key
.................. . . . . . ...........................
. . 2- 66
2- 33

Wavef or m pr ocessi ng key ..... . . . . . ............. . ~- ~~~~~~~- ~~~~~
2- 67
2- 34

The TI ME/ DI V- di gi t i zi ng modes
sel ect or ........................
2- 72
2- 35

TRI G ger

POSi t i on

keys ............. . . . . . . . ~~~~~~~~~~~~~~~~~~~~~~
2- 75
2- 36

Tr i gger

PO Si t i on

r eadout ............ . . . . . .......... . ~~~- ~~~~~~~~
2- 75
2- 37

The HOLD NEXT key ................. . . . . . ~~~~~~~~~~~~~~~~~~~~-
2- 77
2- 38

7D20 MASTER MENU ...................... . . . - ~~~~~~~~~~~~~~~~
2- 83
2- 39

DI SPLAY CAL PATTERN ........................ . . . . . . ~~~~~~~~~~~
2- 85
2- 40

UTI LI TI ES MENU ............................
. . . . . .............. .
2- 85
2- 41

Ext er nal

Cl ock

pr om pt .......................... . . . . . ~~~~~~~~~~~~

2- 87
2- 42

TEST MENU . . .................................
. . . . . . ...........
2- 87
2- 43

SELFTEST PASS message
. ........................ : . ~~~~~~~- ~~~~
2- 87
2- 44

Sel f Test Fai l . . . . . . . . .
. ............................ .
. . . . . . ...... 2- 88
2- 45

VO LTS/ DI V

r eadout . . . . . . . ................. . ~- ~~~~~~~~~~~~~~~~~~
2- 92
REV
SEPT 82
LI ST
OF
I LLUSTRATI ONS
7D20 Oper at or s

7D20 Oper at or s
LI ST OF I LLUSTRATI ONS ( CONT)
Fi gur e No .

Page
2- 46

VARI ABLE VOLTS/ DI V r eadout i ndi cat or . . . . . . . ..................
2- 93
2- 47

Cur sor pl acement f or AOR GAI N adj ust ment ....................
2- 94
2- 48

CH 2 I NVer t r eadout . . ........................ . . . ..............
. 2- 95
2- 49

TI ME/ DI V r eadout ...................... . . . . . . ..................
2- 97
2- 50

EXTer nal cl ock r eadout .................. . . . . . . ..................
2- 98
2- 51

Tr i gger i ng on negat i ve sl ope ............... . . . .................
2- 103
2- 52

Tr i gger POSi t i on r eadout ................... . . . . . . ..............
2- 105
2- 53

DSW ( di spl ayed wavef or ms)
r eadout ........ . . . . . . .............. 2- 106
2- 54

7D20 COPY pr ompt ......................... . . . . . .............
. 2- 107
2- 55

DSW r eadout wi t h
R ( Ref er ence) Wavef or m di spl ayed .......... 2- 108
2- 56

Cur sor wavef or m wi t h VZR
( Ver t i cal Zer o Ref er ence)
al t er ed by VPUP

. . . . . . . . . . ..................... . . . . . . .......
. 2- 109
2- 57

HMAG Wavef or m di spl ayed wi t h
i t s r ef er ence wavef or m ...... . 2- 110
2- 58

Cur sor Wavef or m VS
( Ver sus) pr ompt ............ . . . . . . . . . ..... 2- 111
2- 59

CSW ver sus r eadout . . ........................ . . . . . . ..........
. 2- 111
2- 60

Cur sor
coor di nat e r eadout . . . ........................ . . . . . . .... . 2- 113
2- 61

Cur sor
coor di nat e r eadout wi t h VS Wavef or m di spl ayed ........ 2- 113
2- 62

Cur sor coor di nat e r eadout when bot h cur sor s ar e on
( DON) . . . 2- 114
2- 63

Cur sor 1 l ocat i on on HMAG' d Wavef or m ......... . . . . . . ........
2- 1 14
2- 64

Set N r eadout pr ompt . . . ........................ . . . . . . .......
. 2- 116
2- 65

The AVE r eadout . . . . . . . . ........................ . . . . . . ........
2- 116
2- 66

The ENV r eadout . . .... . . ........................ . . . . . ~~~~~~~~~ 2- 119
2- 67

I D MENU ........ . . . . . . . . . . . ............................ . . . . . . .
2- 122
2- 68

EXTer nal cl ock r eadout .... . . ........................ . . . . . . .... . 2- 122
3- 1

7D20 Over al l Bl ock Di agr am . . . . . . ........................ . . . ....
3- 2
3- 2

Si mpl i f i ed Bl ock Di agr am of Char ge Coupl ed Devi ce ( CCD)
....... 3- 5
3- 3

Non- Fast I n, Sl ow- Out Ti me Base Modes
( A) Rol l Mode ;
( B) Real - Ti me Di gi t i zi ng ( RD) Mode ..................... . . . . . . ....
3- 7
3- 4

Fast - I n, Sl ow- Out Ti me Base
Modes ; ( A) Ext ended Real - Ti me
Di gi t i zi ng ( ERD) Mode ; ( B) Equi val ent
Ti me Di gi t i zi ng ETD Mode . . 3- 8
3- 5

Ext ended Real - Ti me si gnal
acqui si t i on capabi l i t y of t he 7D20 . .... 3- 9
4- 1

GPI B syst em conf i gur at i on
. . . .
. . . . ........................ . . . . . . .
4- 3
4- 2

Funct i on sel ect i on di spl ay . . . . . . . . . ......................... . . . . . .
4- 5
4- 3

Addr ess sel ect i on di spl ay . . . . . . . . . ........................... . . . .
4- 5
4- 4

Ter mi nat or sel ect i on di spl ay . . . . . . . ........................... . . . .
4- 6
4- 5

Mode sel ect i on di spl ay
.......
. . . . . . .......................... . . . .
4- 6
4- 6

Devi ce- dependent vs .
i nt er f ace messages ..................... . . . .
4- 9
4- 7

Compl ex command
f or mat di agr am . . . ........................... 4- 11
4- 8

Si mpl e command f or mat di agr am . . . . ...........................
4- 12
4- 9

NR1
dat a
f or mat ..................... . . . .......................
. 4- 13
4- 10

NR2 dat a f or mat ...................... . . . . . .....................
4- 14
4- 11

NR3
dat a
f or mat ...................... . . . . . . . . .................
. 4- 15
4- 12

Quer y
f or mat di agr am ............. . . . . . .......................~
4- 15
4- 13

ASCI I
and
I EEE- 488 code ............. . . .... . . .................. 4- 18
4- 14

7D20
st at us r epor t i ng bl ock di agr am . . . . .... . . ..................
4- 27
4- 15

Event
handl er f l ow char t ........... . . . . . . . . ................ . ~ . ~~
4- 28
4- 16

Ser i al pol l handl er f l ow char t ......... . . . . . . . . ..................
4- 30
4- 17

Al l - event quer y f l ow char t ............ . . . . . . . . .............~~~~~
4- 33
4- 18

Event quer y f l ow char t .................. . . . . . . . . ... . .
4- 34
y jjj

REV
SEPT 82

Fi gur e No .

Page
5- 1

Vi ewi ng a r ef l ect ed pul se si gnal showi ng t he
cur sor posi t i on
r el at i ve t o t he t r i gger pul se . . . ..................... . . . . . . . . ~~- ~~~
5- 5
5- 2

Usi ng t he ENVel opi ng mode t o show f r equenc y
shi f t . . . . . . . ...... 5- 7
5- 3

Usi ng si gnal ENVel opi ng and
mul t i - di spl ay f eat ur e t o
vi ew pul se f i t t er .............. . . . . . ....................... .
. . . ... 5- 8
5- 4

Usi ng t he 7D20 ENVel opi ng
mode t o show wavef or m var i at i ons . .
5- 8
5- 5

7D20 di spl ay showi ng saf e oper at i ng
ar eas and ot her
i nf or mat i on .......................
. . ........................
. . . . 5- 12
5- 5

Exampl e of manuf act ur er ' s
spec ' s ... . . . . . . .................~~~~~ 5- 12
Tabl e No .

Page
1- 1

El ect r i cal Char act er i st i cs .... . . . . .................... . ~~~~~~~~~~~~
1- 6
1- 2

Envi r onment al Char act er i st i cs ..... . . . . . ...................~~~~~ ~
1- 11
1- 3

Physi cal Char act er i st i cs .............. . ... ..................~-~~~
1- 11
2- 1

Cont r ol Set t i ngs at
Power Up ....... . . .....................~~~.. 2- 81
2- 2

Fr ont Panel Set t i ngs
t hat can be St or ed and Recal l ed ...........
2- 84
2- 3

7D20
DI GI TI ZI NG MODES ............ . . . . . .................~~~~~
2- 97
2- 4

Di gi t i zi ng
Mode Bandwi dt h ............... ......................~
2- 98
2- 5

Equi val ent
Ti me Di gi t i zi ng Mode Tr i gger Requi r ement s .........
. 2- 103
2- 6

Number of
Poi nt s Aver aged f or Each Di spl ay ed Poi nt
i n
ROLL Mode
. . . . . ........................ . . . . ..................
. 2- 117
2- 7

Number of
Poi nt s Aver aged f or Each Max and Mi n
Pai r of
Di spl ay ed
Poi nt s i n ROLL Mode ............... . . . . . . ...... . . . ~ ~
2- 119
3- 1

Summar y of Ti me Base Modes ............ . . . . . ...........~~~~~~
3- 5
3- 2

ETD Mode ...... . . . . . ......................
. .. .
. ................
3- 10
3- 3

7D20 Wavef or m Di spl ay Posi t i on .............. . . . . . .............
3- 1 1
4- 1

MEMORY DI SPLAY Keypad Code
..............
. . . . . ..............
4- 7
4- 2

7D20 GPI B I nt er f ace Funct i ons ................ . ... .............~~
4- 8
4- 3

Suppl ement al Char act er s .......................... . . . . . . . . ~ ~ ~ ~ ~ ~ 4- 17
4- 4

7D20 St at us Byt es .... . . . ........................ . . . . . ~~~~~~~~~~ 4- 26
4- 5

Ser vi c e Request Masks ... . . . . ...................... . ~ ~ ~ ~ ~ ~ ~ ~~~~
4- 31
4- 6

Event Codes .............. . . . . . ........................
. . . . . . . . . 4- 36
4- 7

7D20 Command Set ..... . . . ........................ . . . . . .......
4- 39
5- 1

Ef f ect i v e Number of Poi nt s When
Usi ng ENV Whi l e ROLLi ng ..... 5- 6
REV SEPT 82
LI ST OF TABLES
7D20 Oper at or s
LI ST OF
I LLUSTRATI ONS ( CONT)
I X

7D20 Oper at or s
OPERATORS
SAFETY
SUMMARY
The gener al saf et y i nf or mat i on
i n t hi s par t of t he summar y i s f or bot h
oper at i ng and
ser vi ci ng per sonnel . Speci f i c
war ni ngs and caut i ons wi l l be f ound
t hr oughout t he
manual wher e t hey appl y,
but may not appear i n t hi s summar y
.
I N THI S
MANUAL
AS
MARKED ON EQUI PMENT
TERMS
CAUTI ON
st at ement s i dent i f y condi t i ons or pr act i ces t hat coul d
r esul t i n damage t o
t he
equi pment or ot her pr oper t y .
WARNI NG
st at ement s i dent i f y condi t i ons or pr act i ces t hat coul d r esul t
i n per sonal
i nj ur y or
l oss of l i f e .
CAUTI ON
i ndi cat es a per sonal i nj ur y hazar d
not i mmedi at el y accessi bl e as one
r eads
t he mar ki ng, or a hazar d t o pr oper t y
i ncl udi ng t he equi pment i t sel f .
DANGER i ndi cat es a per sonal i nj ur y
hazar d i mmedi at el y accessi bl e as one r eads t he
mar ki ng .
I N THI S MANUAL
© St at i c- Sensi t i ve Devi ces .
SYMBOLS
I

Thi s symbol
i ndi cat es wher e appl i cabl e caut i onar y or ot her
i nf or mat i on i s
t o be f ound .
AS MARKED ON
EQUI PMENT
DANGER- Hi gh
vol t age .
Pr ot ect i ve gr ound
( ear t h) t er mi nal .
Q ATTENTI ON- r ef er
t o manual .
x

REV SEP 1982

POWER SOURCE
GROUNDI NG THE PRODUCT
WARNI NGS
DANGER
ARI SI NG FROM
LOSS OF GROUND
7D20 Oper at or s
Thi s
pr oduct i s i nt ended t o
oper at e i n a mai nf r ame connect ed t o a
power sour ce
t hat wi l l not
appl y mor e t han 250
vol t s r ms bet ween t he suppl y
conduct or s or
bet ween
ei t her suppl y conduct or
and gr ound . A pr ot ect i ve gr ound
connect i on by
way of t he
gr oundi ng conduct or i n
t he mai nf r ame power cor d i s essent i al f or
saf e
oper at i on .
Thi s
pr oduct i s gr ounded
t hr ough t he gr oundi ng
conduct or of t he mai nf r ame power
cor d . To avoi d el ect r i cal
shock, pl ug t he mai nf r ame power
cor d i nt o a pr oper l y wi r ed
r ecept acl e
bef or e connect i ng
t o t he pr oduct i nput or
out put t er mi nal s . A pr ot ect i ve
gr ound connect i on by way
of t he gr oundi ng conduct or
i n t he mai nf r ame power cor d
i s
essent i al f or saf e
oper at i on .
Upon l oss of t he
pr ot ect i ve- gr ound connect i on,
al l accessi bl e conduct i ve
par t s
( i ncl udi ng knobs
and cont r ol s t hat
may appear t o be i nsul at i ng) ,
can r ender an
el ect r i c
shock .
DO NOT
OPERATE I N
EXPLOSI VE ATMOSPHERES
To avoi d
expl osi on, do not oper at e t hi s
pr oduct i n an at mospher e of
expl osi ve gases .
DO NOT
REMOVE COVERS OR
PANELS
To avoi d
per sonal i nj ur y, do not
r emove t he pr oduct cover s or
panel s . Do not oper at e
t he pr oduct wi t hout t he
cover s and panel s pr oper l y
i nst al l ed .
DO
NOT OPERATE WI THOUT
COVERS
To
avoi d per sonal
i nj ur y, do not oper at e t hi s
pr oduct wi t hout cover s or
panel s
i nst al l ed . Do not appl y
power t o t he pl ug- i n
uni t vi a a pl ug- i n ext ender .
REV SEP 1982

X~

7D20 Oper at or s
DESCRI PTI ON
The
7D20 Pr ogr ammabl e Di gi t i zer i s
desi gned t o enhance t he capabi l i t i es of 7000-
ser i es osci l l oscope
mai nf r ames .
Mul t i pl e wavef or m st or age, cr t r eadout , t wo
cur sor s
f or poi nt - t o- poi nt measur ement s, pr e-
and post - t r i gger vi ewi ng, st or e and
r ecal l of up
t o si x f r ont - panel set t i ngs, and
si gnal aver agi ng t o r educe noi se ar e j ust
a
f ew of t he f eat ur es t hi s t hr ee- wi de
pl ug- i n uni t pr ovi des .
Wavef or m st or age usi ng di gi t al
memor y el i mi nat es t he need f or a st or age cr t , and
al l ows vi ewi ng
i nf or mat i on t hat occur r ed pr i or t o a t r i gger i ng event
.
Si x
wavef or ms
can be st or ed
and di spl ayed at t he same t i me f or easy compar i son
.
The 7D20
f eat ur es a compl et e al phanumer i cal di spl ay
of cur sor wavef or m
i nf or mat i on and
measur ement val ues, t i me base and ampl i t ude
set t i ngs, t r i gger
posi t i on,
di spl ayed wavef or m number , pr ompt s
and er r or messages, and a mast er
menu t hat
al l ows you t o choose sel dom used f eat ur es easi l y
and qui ckl y .
The
mast er menu of f er s a conveni ent way t o
enabl e speci al f unct i ons such as t he
STORE and RECALL of f r ont - panel set t i ngs as
wel l as al l owi ng you t o br anch- out t o
ot her menus . The t est menu i s
desi gned t o assi st i n t r oubl eshoot i ng t he 7D20 i n t he
event of a f ai l ur e . The SELF TEST
may be i mpl ement ed at any t i me t o ensur e user
conf i dence . The ot her sel ect i ons
al l ow ser vi ce per sonnel t o di agnose f aul t s t o t he
component
l evel .
Compl et e cont r ol of t he 7D20' s f unct i ons
may be cont r ol l ed vi a t he I EEE- 488
i nt er f ace . Commands, wavef or ms,
and al phanumer i c t ext messages may be sent or
r ecei ved vi a t he f r ont - panel por t
.
Xj j

REV SEP 1982

SE{ } T! { ) NONE
{ ~ENERAL! NF[ ) RK8ATi DN
Thi o sect i on i o ~he
f i m~ p! a~e ~o ! ook ( or i nh»r mot i on
ooncer ni ng ~our 7D2O
Pr ognammab! e Di gi b~er ~ Heno vve
daacr i ~e ~ha baui c
oon~ent of ~he o~er oko, o and uer vi oe
nnanua! s whi oh
ana at ~ndar d aoceasor i es t o your nevv
i nst r ument ~
VVe a! oo i no! ude a br i of ~enar a!
deaor i pt i on of
t ho 7D~0
and exp! ai n how 1o i nst uU i t i n
a hon~
mmi nf r ome f m' opo~~i nn~ ! n t hi a oec~i on
wa ~i ve ~he
e! eo1, i cu!
.
mnvi r onman~a!
.
~nd physi oe!
ohar an&sr i s~i oo ond
apeoi f i om1i ona o~ \ ho 7D2O
.
! i at ~ha
at andur d and
n* onmmonded aooeoeor i ea
'
und
pr ovi de a di menai ona!
dr uvvi ng nf 1he i nut r ument ~
~hou! d you havo need ~o
napmc~age 1hm i nat r umen~
~or ohi pment
.
t hs~ i nf or m* di on i a
a! en i no! uded~

SECTI ON
1 CONTENTS
DESCRI PTI ON . . . . . . . . . . . . . . . . . ...
. .... . . ............................ 1- 1
ORANGE COLOR USED I N THI S
MANUAL
. . . . . . . ...................
1- 1
TECHNI CAL MANUALS ... . . . . . . . . . . . . . . . . . . . . ......................
1- 1
OPERATORS
MANUAL ............. . . . . . .... . . . . . ................ 1- 1
SERVI CE MANUAL
.......... . . . . . . . . .... . . ...................... 1- 2
I NSTALLATI ON ..........................
. . .... . . . . . . . . ................ 1- 3
RACKMOUNT
MAI NFRAMES ................ . . . . . . . . . . . ............. 1- 4
COMPATI BI LI TY
.............................
. . . . . . . . . . . . . . .......... 1- 4
PACKAGI NG FOR
SHI PMENT ............... . . . . . . . . ... . . . . . . ....... 1- 4
SPECI FI CATI ONS ...............................
. . . . . .... . . ................ 1- 6
STANDARD ACCESSORI ES ..................... . . . . . . ... . . . . . ......... 1- 12
OPTI ONAL
ACCESSORI ES ( not i ncl uded) ................ . . . . . . . . . . . . . . 1- 12
1- 0

REV SEPT 82

DESCRI PTI ON
TECHNI CAL
MANUALS
GENERAL
I NFORMATI ON
The 7D20 Pr ogr ammabl e
Di gi t i zer i s a t hr ee- compar t ment wi de
7000- ser i es pl ug-
i n . I t pr ovi des
si mul t aneous dual channel wavef or m
di gi t i zi ng and a var i et y of
di spl ay f eat ur es .
Mul t i pl e di gi t i zi ng modes i ncl ude
si ngl e shot , r epet i t i ve equi val ent
t i me, and r ol l
modes . Pr ogr ammabi l i t y and
GPI B t al k- l i st en capabi l i t y al l ows t ot al or
par t i al
syst emi zat i on and dat a t r ansf er f or
mor e ext ensi ve si gnal pr ocessi ng . Di spl ay
r eadout
pr ovi des i dent i f i cat i on of wavef or ms,
scal e f act or s, pr ompt i ng messages,
and cur sor
measur ement s . Wavef or m st or age i s
pr ovi ded f or si x wavef or ms, whi ch
can be i ndi vi dual l y
sel ect ed, posi t i oned,
expanded, compr essed, magni f i ed, or
di spl ayed i n
a Y ver sus X f or mat . Di gi t al st or age
al l ows mul t i pl e aver agi ng and
envel opi ng al ong wi t h
post and pr et r i gger
capabi l i t y .
ORANGE COLOR
USED I N THI S MANUAL
I n usi ng
t he oper at or s manual , you
wi l l
not i ce
t hat some f unct i on names ar e pr i nt ed
i n or ange i nk .
The or ange col or i ndi cat es a
shi f t f unct i on whi ch r equi r es t hat t he
f
shi f t f unct i on)
key be pr essed pr i or t o
sel ect i ng t he f unct i ons .
Bot h an
oper at or s and a ser vi ce manual ar e
suppl i ed wi t h your 7D20 as st andar d
accessor i es . The f ol l owi ng
i nf or mat i on out l i nes t he cont ent of t hese
manual s .
Oper at or s
Manual
The oper at or s
manual f or t he 7D20 cont ai ns
si x sect i ons of i nf or mat i on t o expl ai n
t he oper at i on
of your i nst r ument . The
cont ent of t he oper at or s manual i s descr i bed
bel ow :
SECTI ON 1- GENERAL
I NFORMATI ON cont ai ns an
i nst r ument descr i pt i on al ong
wi t h i nf or mat i on
f or i nst al l i ng t he 7D20 i nt o a host
mai nf r ame . We make a
speci al not e r egar di ng
r ackmount i ng and anot her
about compat i bi l i t y
consi der at i ons . Thi s
sect i on al so pr ovi des a compl et e l i st of
t he 7D20 el ect r i cal ,
envi r onment al , and physi cal
speci f i cat i ons and char act er i st i cs . I t al so
l i st s
st andar d and
r ecommended
accessor i es, and gi ves i nst r uct i ons
f or packagi ng
t he i nst r ument f or
shi pment .
SECTI ON
2- OPERATI NG I NSTRUCTI ONS
pr ovi des a gener al over vi ew of t he
i nst r ument s
capabi l i t i es, cont r ol s
and connect or i nf or mat i on, a ser i es of get
acquai nt ed
exer ci ses, and det ai l ed
oper at i ng i nf or mat i on .

Gener al
I nf or mat i on- 7D20
SECTI ON 3- OPERATI ONAL THEORY pr ovi des addi t i onal i nf or mat i on about t he
oper at i on of t he 7D20 di gi t i zer . Thi s sect i on di scusses t he mor e t echni cal aspect s
of t he di gi t i zi ng t echni ques used by t he 7D20 .
SECTI ON 4- GPI B cont ai ns a gener al descr i pt i on of t he GPI B i nt er f ace, addr ess
sel ect i on i nf or mat i on, descr i pt i on of t he i nst r ument st at us f ol l owi ng power - up,
and descr i pt i ons of t he commands and messages whi ch can be t r ansf er r ed over
t he GPI B . The sect i on al so pr ovi des a command l anguage i ndex .
SECTI ON 5- APPLI CATI ONS i l l ust r at es how your 7D20 can be used
i n
a
var i et y
of si t uat i ons . I n t hi s sect i on we combi ne t he 7D20
wi t h ot her Tekt r oni x pr oduct s
f or some uni que and i nt er est i ng di gi t al
st or age appl i cat i on possi bi l i t i es .
SECTI ON 6- I NSTRUMENT OPTI ONS cont ai ns descr i pt i ons of avai l abl e opt i ons .
Ser vi ce Manual
Your
ser vi ce manual cont ai ns ei ght sect i ons of i nf or mat i on per t ai ni ng t o t he
ser vi ci ng needs of your 7D20 . The f ol l owi ng i s a br i ef over vi ew of t hi s
manual ' s
cont ent s .
WARNI NG
The f ol %wi ng ser vi ce i nst r uct i ons ar e
f or
use by
qual i f i ed per sonnel
onl y . To avoi d per sona/ i nj ur y, do not
per f or m any
ser vi ce
ot her t han
t hat cont ai ned i n oper at i ng
i nst r uct i ons unl ess you ar e qual i f i ed t o do
so . Ref er t o Oper at or s Saf et y
Summar y and Ser vi ce Saf et y Summar y
pr i or t o per f or mi ng
any ser vi ce .
SECTI ON
1- GENERAL I NFORMATI ON cont ai ns an i nst r ument descr i pt i on al ong
wi t h i nf or mat i on f or i nst al l i ng t he 7D20 i nt o a host mai nf r ame . We make a
speci al not e r egar di ng r ackmount i ng and anot her about compat i bi l i t y
consi der at i ons . Thi s sect i on al so pr ovi des a compl et e l i st of t he 7D20 el ect r i cal ,
envi r onment al , and physi cal speci f i cat i ons and char act er i st i cs . I t al so l i st s
st andar d and r ecommended accessor i es, and gi ves i nst r uct i ons f or packagi ng
t he i nst r ument
f or shi pment .
SECTI ON 2- THEORY OF OPERATI ON pr ovi des a basi c bl ock di agr am descr i pt i on
of t he 7D20 al ong wi t h gener al and speci f i c ci r cui t anal ysi s t hat may be usef ul
f or ser vi ci ng t he i nst r ument .
SECTI ON 3- MAI NTENANCE descr i bes r out i ne
and
cor r ect i ve mai nt enance
pr ocedur es wi t h det ai l ed i nst r uct i ons f or r epl aci ng assembl i es, subassembl i es,
and i ndi vi dual par t s . I ncl uded i n t hi s sect i on ar e f ul l i nst r uct i ons f or
t r oubl eshoot i ng t he 7D20 usi ng i nt er nal di agnost i c r out i nes and si gnat ur e
anal ysi s .
SECTI ON 4- CHECKS AND ADJUSTMENTS i s di vi ded i nt o
t hr ee separ at e par t s :
Par t I - Funct i onal Check Pr ocedur e
used t o ver i f y t hat t he maj or f unct i ons of t he