Tektronix 545A Service manual

MAISIDBOOK
TEKTHONIX INC PjO. BOX 831 POHTLflWD 7, OREGON

Copyijght ©by Tcktidfibc^
Intp Pori Iand, Oro^Od. Prinlod in
Ihe United ofAnt^rlco, Afl
rightjrescrvad. Consents of ihii
puhlicnfiOn muy not be fopwoduced
any form without pemiision of
Ihe copyrighi Owfier.
INTRODUCTION
The follow ifig pa^^3^ provide a
rapid ruMns of seMfng Ihe conlrolt
of your Tebronrx Type 535Apa-
Type 5^5A OicMIoscope, Thii in for-
molion hdesigned to give you
not only control leM frigs for $pecffk
opplicdtion^ -hat oiso various func-
lions of these controlj daring differ-
enl QpenpPionof procedures;
An imporronl port of this hook
ccveri "triggered operation of the
oscilloscope. Heoj, some "Irigger-
lignai starts ihe horf^oniol
trace- ocross the icreen, beginning
ot the Jeh bond side of the grqt-
icule. For pfoscnl purposes, then,
"triggering" ton bo rofeen os Synon-
Jfrnow with Itarlifig tlie borfionid
sweep of the irpce.

CONTENTS
Proba AdjLn^mEnr ^,* +4... .,.
.
,
.
_,
.
Characterrilics of Plug-In and
T)fpe 535A-545A Comhiroilions ,,^^
Saicciing Iha Tf iggcfing Signal ,,h._
Triggered Operafian; AUTOMATIC MOO£
Triggered Operolion- AC MODE
Triggtijcd Opcratioa: DC MODE
Triggered Operahiort: AC, LF REJECT MODE .
Triggered Dpertattort
Uiing iJio Type CA Piugin UnJl
SyncJimnized Operafbri: HF SYNC MODE 4^
Free Running Sw<?^p Operorion .,^+
Dcrayad Trigger Operarbn
Defflyed Sweep Opera fipn
Deicyed Sweep Exponded
Single Sweeps; Maneaf Operoiion
Single Sweeps; Triggered OpGratraji
Eiil&jngf Sweep Operafien
Using rba Voripbfo STABJLnV Control
Possible Couses for lack of Troco ^^
,
OpOfdbng Ddscriplion of Conlfds
nef Conneclors *
\
2
3
4
4. TO
12
.. U
.. 16
.1?
.18
20
..22
.* 2^
.26
r, 2B
29
.30
Cl?

BEFORE USING PROBE
ALWAYS CHECK fTS ADJUSTMENT
PROBE adjustment
An fid|ij3l<ih1c copoci^of mflig probtr body compcjiiolcj
fo[ vorialions in, jjipyt capocitam^ from one msttumenT to
qjioilhE^^ ^rliQi your pulip and irom^nt m^piurcmenls-
be cmcurdle. Taych the probe lip to the oscilloscope coli-
bi olqr agtput connecfor ond odju^l Ihe osei Ifoicop^ cQnlroJ$
lo display leverdi tycki of ibe waveform.. Ad|usr iho probe
capdcl(nr for oih\ top on \he colibrolor square wove.
SJSm/EiiU- I1

CHARACTERISTICS OF PLUG-tN
AND TYPE 53SA/TYPE S4SA COMBINATIONS
For ihe complele ll«l of spedlicatFons, ]nc:lt)drFig rfsclimc
Odd jnpijt cgpflcilancc, lee (he initrucrion marufol !or l}ie
In?h-Lfmen! Involved.
PLUG IN 1DEFLECTION FACTOR
ICalibroFcdl 1BANDPASS
535A/545A
fvPE A.05 vfLHi lo 20 v/cm dc tci 14 mc/20 me
TYPE B.OS v/cfn io 20v/tm dc to 14 me/ 12 me
TYPE B
type CA’ 5mv/cm Id .OSv^Cffl
.05 v/c^n ki 20v/cm
2_c tq 10mc/dc to 20 me
dc tq 15mc/24TTic
TYPE 01 1inv/cm lo 50v/cm dc lo 2me
TYPE Et 50fiv/cm to lOmv/cm .06 e60 Isc
TYPE G^ .,0Sv/cm lo 20v/tm 1dc lo 14 mc/20 me
|
TYPE hr Smv/dm to 2D v/cm dc to \1mil 15me
TYPE K-OS v/cm So 20 v/cm ^de td T5mc/30 me;
lYPB 1Smv^on Id 2v/c:m: 3eId T5 mc/24 mt
_TYPE 1.DSv/cm lo 20v/tjn do lo 15rnc/B0itic
Qf .Single -troce Difftrphl'lal,.
Dlflcjicnpiet IrilpHi- AvniJobl#^
SELECTING THE Tl^tGGEIMNG SIGNAL
1* To trigger iHe sweep from \h^ waveform being tih served^
ser block TRIGGER SLOPE swMch io +INT. or -INT,
2+ To trigger ihe ?weep fi’Cri the po^er-IIne ^ove (lo ob-
serve owavcForm tKiving otime refotronship fco Ihe power-
line Wave}, .>:ei blade TRIGGER SLOPE SWITCH to -J-
LlhlE or ^IFHE
3. To trfgger ihe sweep rr&m on ejtrernol wavoForm which
hot atime rebiion^hip fo iN obsci’vcd waveform^ cofin&ct
the irrggenng wave to Iht appropfiota TRIGGER INPUT
cocini^clor^ dn-d soJ flic block TRIGGER SLOPE ^wildl lo
+EXT or -E)fT.
4. JF you want the stdrr oi tho deploy lo occinir ot otime
when ihe Iriggering jigrioi is rising {has aposilivc slope!,
use Mic -h podtiom of Mie black TRIGGER SLORE rwiich.
To slort \he display at atim^ when ihe J^iggering signal ^
foiling ihds dfi<igoiiv<? slopcJn use the -posllrons of Ihe
block trigger slope swFkh.
UU/ȣA.< k3

TRIGGERED OPERATiON
AUTOMATIC MODE
for periodic
dO cythi lo 2m^gacyctni
This mode hportFculcirly useful thongfng llie inpul
connetlion from one point mthe dfcuil Jo qriolbcr, Upro-
vider DIrocc wilfi or wilhoul aIri^^erin^ ii^nof.
CONTROL PbriTtOH FACE*
HOJMZOhTTAL OlSf»LAlT A4r 330
TRtGGEHlNO MOa£ AUTO. 31
TtIGGES &LOP1 t-HNT or —INI 31
STMIUTr NOT USED 31
TRIGGERING L£VEL NOT USED 3^
lo 4j«-Kriptrofi oF tliH CDfilnol luncJian; iri thil -b4i&ki
7page
Set ifie appraprio^o TiME/CM iwilch lor hisc derired lirn^
boiB ond the red VARIABLE knob lo CALIBRATED, li Ihc
wpvelorni doe$ mol appear, refer to poge 29.
14
In thii dnod&, the red STABILITY knob
TRIGGERING LEVEL oonlrol r^ecd no ndjualrtienl
iweep is triggared at the averqge-vallpge poinl ori ihe
woveform
Erj^nt
TwinniAMn iniFi
usA/a-vaA-
1

TftiGGEHED OPERATiON
AC MODE
For IfansiejTf or perjodt Frgnp^r
IS c/ctes f& 5megpc/des
Thii mode \% pofltcubrly useful kkr low-frecfyency signali.
Il pFovidei alroc.e orify wfiEn oJriggerSng signal occurs.
CDKTRDl POSlflON PAGE*
MORIZONIAL DlSfLAY A«r Hr30
TmcaEiirNS MODt AC *11
WbaER SLOPE t+INT dr —IWf 31
5TAIILITY ^TatSET 31
TmCG-ERING LEVa Fuil^ li^fT D-r rTghP 31
lo daxcripljon pf 111# (fluffol fwflsrmfl in lli[^ bo«iq.
t5e^ pofl* 3-l
ttikk I4ii rfd ^TAeiUTY hj>ab luN kit 4o
In £cl Hie bJock TIME/CM switch for Hie desfied TIME BASE
Qfld ihe TEd VARIABLE knob io CALIBRATED.
2, Turn (lie black TRIGGERING LEVEL CONTROL slowly
lowofd Ihe cenlcf of iH range fp-r aifoblo display,
If Iho WQveldfiTi- does not oppeor, refer lo Page 2?,
In Hijj mode, the biocli TRIGGefilNG ,fVEL c&ntrof deter
niHioi The fwighf on ihe wovsfoftn ot A-hich the trace *jll
start Trtggefing is unaHeaed by tKr? dr comjMrHjntr of the
l-IgatJina tignol or by Ihe VERTICAL POSITION conirol.
mfiiY
TIME BASE
A
tlKiOlWND Lf¥IL
7

TRIGGERED OPERATION
DC MODE
for IronsTe/rf or perj'odk sj&rtofi
DC fQ irn^gQcydm
Thii mode is (SQ/ficukafly uii^Fyl For vgnali ^hfl^ cluifigc
slowly, signals below Ibe frcqiieicy limiF of the AC
MODE.
CONTROL POSITIQM PA^E^
HOmiONTAL Di^pur AOt b10
TRI^^^IINC MO[lE~ OC 31
~SIOPE t+INT vw —thlT ^31 1
STAfttLlTT~ 1piiESEr 31
TRIOGEIING UV|L Full t*rp «r rl>Bhr 32
Ip ol Iha certirol fvnclJpn In i^<i bti^k.
t5cfl pagn 3,
l-cikh tli« Tti4 STAIUITY Lnub IhII I«PI Pp PRESET,
KSet fhfi oppri'opriaFc TIME/CM swif^h fat fho dedrcfl fime
base^ and ^he red VARJABLE knob \o CAH6RATED-
2.Turn !be block TRIGGERING LEVEL control slowly iqward
iho center of ils ran 343 for aliable dispio/- Final Mtlinpg
oF this conirql ^itl depend “U|^n the VERTICAL POSITION
cqnirdf. UPh* display hposhipned lo the iop of boHom
of the grotrcule, the TRIGGERING LEVEL control Mfill be sef
lo eplhflr side of the mid-ronge posilion, If the woveform
does not Dppecirr f-oFer la poge 2?.
HCiRIZDHfM OlSPlAr
In ibrs mode, fho block TSfCGERING LEVEL control deter-
niiiies the point on the Iriggermg waveform where iriggerfng
of the sweep ocean. The trace oiJwayi stopts ot agiven
pqinl g-rr the grphcule for ct given TRIGGERING LEVEL
control soiting
9

TRIGGERED OPERATION
AC, LF, REJECT MODE
For fronxitirf or poriodk sJgno/s,
?0 lti^ocye/05 Fo 5megocycfei
THii mode is pnorlicylprly usefiJl fof ftliminoling ijrtdc^Er-
oble bw-frequcficy comporenrs in Ilie tdggersng signaL
CONTROL POSITION "PACe*
HOilZONTJM DUflAt Aor B3d
rRia^CERINCi MODE ACr Lf reject 31
“
TtrCGEi SLOPE f-jllNT dr —INT
stAiiinrr $PK1ET 3t
tkiooEfeiriG level Full l*ff Of right ii
'Aef-e^r:! 1o idd-KTipi'iQii dI the canli'cl IvrtcliiQhn In Ihiii back,
tlite piErg-Q 3.
ttiick |li« <#d STAmm kMb Iu3l Fiilt Id MlESfT.
$0 \htt block TiME^CM switdr for fh^ desitcd time base
and the red VARIABLE knob to CALIBRATED.
7Turn ihff block THJGGERING LEVEL cofittd sbwFy
wgrd the ceoler of its range lor aslobb di^ploy.
If the wgveform dofifi not appear^ refer to Page 29,
ia/mM-I 10
This mode hprlndipplly for uto with qduaf-hoco plug-m
ynit. However, \\ may be useM for redyeing jilter due to
Kym in ihc "Irsggafmg "lignal.
Uf-AyEl II

TRIGGERED OPERATION
USING THE TYPE CA PLUG-IN UNIT
Fcr or pirffod^i: f
JO JcjTocytJei Jo 5mcgocytJes
Oual-irace operp+ion is p*siibJt! with !bfe Typa CA PLUG-
IN UNIT. 1r> the ALTERNATE pcsiMorr, Jwq trotes may be
displciyed olfemal&Jy. la ^!ie CHOPPED posilksrij hvcf Iroges
may be diiploycd iimultanDQUily.
cohUoi POSITION
^^
PAGE*
HOftIZOHTM DISt>LAr A«r B1rao
Tii c(S"irlHO“«6Wf“ "AC LF ftEJICT 21
ntlGdfl SLOPE t+JPJI «hr —INT 31
STASlUfY ^PRESET i
TRtCQEirNQ IEVH~ Full luft or ffght 33
^V'ePuTi Ip d«isrri|irrH^r dl thr cahlrdl fvi^dion ill IIU bfrQilc.
T3.
TCMch Thtl i«<l $TARF|(TV knah fait Id ^SESET.
1. Canne-tl Ih* source of the waveformi to the CHANNEL
Aaad Ihe CHANNEL Bconnectors on the plug-in, and place
thd MODE switch in fhe desired position.
2. Sel Fhe block TIMEj/CM switch tor the desired h'fne bow
Orel Ihe red VARfA&LE knob lo CALISRATID.
3. Turn the black TRIGGERING LEVEL conhcil slowly to-
ward the center of its ronge for asl'cible display.
Pf the wovefar^n docs rtoi oppeor^ reter to page 79,
12
Two- waveforms dis-
pfoyi>d wiih ?ho Type
CA Plu-a-in Uhltr The
MODE swikh iii wi of
Ibe ALTERNATE pasi-
tipn.
bH£A/i;«EA-l 15

SYNCHRONIZED OPERATION
HF SYNC MODE
for t^p6!ri\vc sfgrwaJl
Abo/e 5
1n conlrflfiE lo (rfcgg«?jcd operatiorip \h\i- mode glv&s are-
currsnl horrzonlol ^wat*p wfeh mdy be lynchreniatcd by the
red S7A&IUTY knob.
CONTROL POSITION PACE*
HORIZONTAL OISPIAT A«K3Q
TRIGGECtNC MOSE HF STTNC 31
lltICGCfi SlQfE f+1NT nr —INT 31
STAIlLlTY full fijhi 31
TRIO GERIN
G
1it«l used 31
"fic-fcTi lo dfl-SfTiplicin *P life CflJvfral fnivtleefl 3fl ihli ibodk.
ttoa pogH 1,
1. S&r llic qpfM-flprlaEo TIMt/CM iwilch for Iho deiiriHl Hme
bo5eend thfl red VARIABLE fcnob lo CALIBRATED.
1Tyrn this red STABILITY knob aJo^ly lo the lefi br Q
flobb display.
If the wfivefom does nol oppear, refer ^o Page 29.
\n ihiis mode. Ihe block TRIGOfmNG LEVtL coniroJ n
not used. Fhpl selting oF ihe fed STABILITY knob depends
Upon she noturc of itie ^ynclifor^ifing signoT
iaOlA/titA- 11
5

FRE6 aUNNING SWEEP OPERATION
In uiuat oitilloscope applrcQiicins, (he sweep \5
1r ignored or lynchroniicd by ihe in pul' w-ovefpi’m,
However, it is possible lo use ootpul frdm either
fthe +GATE conncct&M ai tfie SAWTOOTH A
cormectpr to Irlgger or s/rKhronize Ihe inpifl wave-
form. Nol only doBi HiU Iren running sweep provide
ameans for controlling on oppliod wovafonrij. but
il also supplies aconvenient rdcrente trace wilhaet
roquiriitg an inpuf itgnol.
T. Use no inpu( lo the TRIGGER INPUT cannedof.
2. To ffcc-run ihe sweep, sel iKe STAB! Lf TV knob full rig hi.
3. In all posilions ot ibe TRIGGERING MODE swilch e^cepl
AUTO.,1 the sweep runs at afold rfeteffnined by the setfrrrg
of ^hc opproprfofe TIME/CM conircL In the AUTO, posihionn
iHb iwMp rapelitton roic remains ot opproKimoloV SO
sweeps per secondn re^rdless of Ihe setting of fbe TIME/ CM
conlroL
IMhe wovefomn does nor appeor, mfer to poge 39.
*nd.i/«HilA I14
DELAYED TRIGGER OPERATION
Adelayed Iriggering pulse can be obloincd from
kfiD DEL DTRIG, binding^pott conn^lor of rlio osdi-
loscopi^ any lime from OJ microseconds (50 seconds
ofror ihc ilsri of osweep.
1. Sot lh& conTFols ol the opproprioio time- base unit for
rriggered aperolion or tor free-running opiratiprj depertdfng
upon lh« oppricaiion.
2. Set the appropjiote TJMf/CM eonrrot ond the DELAY-
TIME MULTiPLIER confral for iho detay time.
3. SeE Elie HORJZONTAL DJSPLAV switch to ony posilioti.
In ihe Aposihon ond the 'A' SINGLE SWEEP position, the
deloyed Iriggar i$ controlled by TIME BASE A, In the olher
poiirions, the doliiyed frrgger ii conlfollod by TIME BASE
B. fn all posirkins, on mdrcalor lights locol&d above the
DEIAY-TPME MULTIPLIER controF, will doslgmile the lime
base used.
If rho wpvefcjjm Hoes not appear^ icfpr lo page 39.
JT
b3a*/a-NS-% I

DELAYEO-SW£EP OPERATION
Tfie ddoyerf-^eep mede oi opEmtioft mokes posr
tiblo occurtiilc time ond phoie mooturemenii oj well
Pi high mogrtrlicptioTi of aselected port^n of gfew
dvty-cyeJe waveform.
LSet Ihe con fra 1
5
pf both Hme bases fof TRIGGERED
OPERATION.
2, Suteet the (fetaying sweep bjr placing Ihc HORIZONTAL
display switch In the *A' DEL'D BY 'B' position.
3, Determine the arnounl of deloy occoring from ihe op-
plicotion of the triggering waveform orfil the iwdep reni fay
nieitiplying the settings of the TtWE^CM OR DELAY TIME
iwilth and Ihe DElAY-TlME MULTlPuefi coniroF.
NOTE: When ihe TIME BASE ASTABILITY control is turned
toll right, the horiiontal sweep starts immedidlerY after
complotjon of the deley period, at arate delermined by
^^time/cm conhaf,. When
the TfME BASE ASTABILITY confrol j$ not lurried full right
but set with the TR3GCERING LEVEL coirlrol for rtormof
tnggwmg, the horizantqf sweep starts ofter completion of
the delay period, but not until atriggering wovelorm it
applied to TIME BASE A.
If the waveform doe? nol oppear, refer lo poge 29.
19
L3£a/s4SA> I

DELAYED SWEEP EXPANDED
SeE Iha confrols of both Mine bases for deloxed iw-ecp
opOfoliQr, wilh hhe TIME BASE ATIME/CM swildi laf for
aFasrcf sweep rple Fhcm TIME BASE B.
2Place ibe HORIZGhTTAL DISPLAY swrfch in Ihe BIN^
TENSiPlEO BV 'A' posFlIon^ The brightened porMon (the de-
layed sweep] is mare noticeable when ihe INTENSITY con-
ifot is noi tyrneef loo high.
3- Uie ^he DELAY-TIME MULTIPLIER control to posh ion ihe
siarl oF iho brl-ghiened porilon (the deleted sweep! lo Icfr
Of right.
Use Ihe TIME BASE ATIME/ CM control to adjust the
length of the brightened perJion (the doFayed swecp| tp
part of oc/cle or tp nnony cycles.
Toi -e^^pond the brightened portion [ihfi defayod sweep!
^t Ihe HORFZONTAL DISPLAY jwilch lo the A' DELD BY
'B’ position. The omount of magrirfication it Ihe rotio of
the TIME BASE BTfME/CM OH DELAY TIME conTrol to she
TIME BASE ATIME /CM control.
Further mogfiificaTicm mciy be offeoled by the 5X MAG-
NIFIER swiich.
If Ihe waveform does not appear^ refer to page 29.
ao
BASE imdiiHtg MOfK
sunuirr A-..is*.
TllCifiihCi tivli
v0»'0ink
-i
MI
£ni^E-4EA-1 n

SINGLE SWEEPS
MANUAL OPEflATlOH
Thif of op«falmn psf^
pfiotogra piling rec-urrenf
phcnofnerw when succeeding
WQvej ore similar btfi nol
necessarily idenlicaL
%. S&r the conIroU of the Cippropfiorp time base for free-
running operation.
2, Ploce lb# HORIZONTAL OiSFLAY iwikh In the A’
Single sweep posiiion.
3. After preparing the comera to receive the picture^ open
Ihe camera shufkr^ presf rhe RESET bMlion once, ond
dose ihe comero shulter.
NOTE: Eodh Ihn^ Ihe RESET bulfon is prcised. ihe procedure
]$ rd pee led.
uu/hh- I12
M^^ u I
t
cf nLUM
EA.
iN*Vf
HORIJONTAL PI$PLAT
In ihi-i mode of operation, the -fGATE wovefaim con be
uifld So iniliafe ihc a-clion lo be photographed
23

SINGLE SWEEPS
TiLIGGEftED OPEftAtlON
This mcd^^ of oporolfon pa*-
mlrs phoiisgropliii^ osingle
rransien^ wi1hml^ in^erf^rsnce
Uorn succ^ding s.igriol!k
T. Set the HQRIZONTAL DISPLAY switch tc Time-Bflse A.
Gick rhd STABILITY kr^b full fo FRlSEf. Got aliable
dFspla/ of ifie signal from fhe AMPLITUDE CALIBRATOR
conncctoi^ whoac ampltlud& hoboet Ihol estpcdcd of Iho
desired sign pi
.
3. Select lh& dti-lT^ IrFgg^ring ^IgnoL Bed pogd Sl
3Placd the HORIZONTAL DISPLAY switch in tbt A*
SINGLE SWEEP position.
4. fitfflove Ihe lead from ihe AMPLITUDE CALIBRATOR
connector. Connect Ibe Maurce of ejtpecfed signol fo the
piug-in INPUT connddor, AcEepr« RESET bulfon. The READY
lomp should lighL
5- The nex^ bigger signal received will cam& osingle trace
lo b& diiplayed. The READY lamp will go oul.
NOT^; Each lima Iho RESET bitllon ii pressed the pj-acadure
Is repeated.
*^*/M*^t lA
In this mode of operalionj nn ETcficir occpring nl on un-
do Idrvnincd limn con be phoiogiophed
IS
5-^a/54A 1

£)CTEfiNAl SWEEP
Thj5 mode of openoiJbn ifses eurfernciJJy derpv^ed
wavijforrns ta daHocl l/ie ircK# boMf avid
T^. Coninect on& e^ttefnally dc3nved woveform Iq the inpuf
corknp«:tar on the plug-in unit for vctricoJ dirficchien and ccmi-
ncC\ Ihe oiher fo fhe HORIZ_ IKPUT bjndin^ posi cortneclov
on fhs CHcilloi^opc for horizonial doficdion. Tlio 4wiH>p
voltage should not have lorge dc component, or hoia-
mnioi podiioning problomi may reiuhfl.
2. Plate ihe HOffl^OKTAL D3SPLAY ?wfkh To cither EXT.
posihon.
3. To vary the horiiiQntaf rfefleciion faefor from approxi-
nwa^dy 7volt^ per cenhimeter !o 15 vofis per c^nlivncter.
Via Ihe VARIABLE 10^1 tontroL
If the wovelorm doci noE appear, refer to pag& 29.
3«
t
Lnuw.
tliKldirry
TR»«|blw imi
In itiis mode of apcrdtian^ sei Ihe TRIGGERING MODE
jwrkh tp some poiitior) other then AUTO. Alio+ wr the red
STABILITY knob at far To the leh os poi^rble, wlihoul actuat-
ing the PRESET j^^itch.
77
iLMA/K-kIC^A' 1

USING TH£
VARIA8U STA&ILITY CONTROL
For dl&'Af ojJlreiTiefy d#fTcul^ Friggerr/ig cpp/FCofi'ons,
QKiting oi fJio red STAI/UTy kfipb^. odnjf fbo/? PIff-
SET posifiortr d^yrrabJ'e. This may otcuf fn the DC
AC AC, If iVlodoi.
1. Alscr fcffii^ig the oifilloscopc i^onlrdi for iha de^frtd
triggering modtr. turn the black TRIGGERING LEVEL wnlrol
(nil ri^hu
2. Tyrn Phe red STA&fLiTY kndb fulf righl.
3.Slowly Jurn the red STABILITY knob feFt until the troce
disoppeort
4. Slowly rum iho bbd TfirCGERlNG LEVEL contmJ lowarcf
teto lor osFdblc diiplay.
lx The INTENSITY control anot tuined suFfpcionlFy Eo the
right. CAUTIONl The ofciibscope scn?en con bn dansoged
in ofew secondjIf Ihe spot remains overly long in one posi-
tion, or excesjiwcJy brighP.
2. The TIME/CM switdt ot the TIME/Q^ or DELAY TIME
swilch mdy be «P incorrectly.
3,The pli/g-ifi verlicahdofteclion control moy bo ser in-
correclfy.
4* The woveform may be off lh@ screen, Tha beom’posi-
tion-indreator lomp^ will light. Adjust fhe HORIZONTAL
POSITION conirol on Ibe oscifbicopc, or iho VERTICAL
POStTION control on the plug-in, accordingly.
Hi-k/lHE-4^ PJ9

OPiRATrNG DESCRIPTIONS
OP CONTROLS AND CONNECTORS
HORfZONTAL DfSPUY
The 5even pM[lion swircb dorerm^nes The thme base
uiffd ond rhei lypu of dl^pfpy presented. In Iho rhfce
TIME BASE Apo^ilioFia, ihie Asw^^cp vs ctmrreirtied to Hie
horizoniol amplifier input. In the Iwo TIME BASE G
pasrrions, fhe Bsv^eep is conrtecl*d ta the hcjriaontql
ampidief inpirL In lhe iwd EXl.. pos-itiar^Sv art exlepnally
derived iwoep kouplad ihraugli ihir HORIZ. INPUT
fiDtlor) UCDFinected to Ihe horiionid! dmpl ifier input.
In |he 'B' position^ TIME BASE G(hfl drtly sweep. In
ihe INTENSIFIED BY posrfion. TIME BASE AIt
used Id br^gt^^e^ oportion of TIME BASE B. In tke 'A'
DEI DBY 'B‘ position^ the brightened portion, as smti in
llm 'B' INTENSIFIED BY 'A' po^ilion^ will be expanded
Ihe full widlh dF Ihe screen. In rhp ‘A^ pciilian^ TIME
BASE Ais the only sweep. In the A' SINGLE SWEEP
posilion, ihe RESET button tantrals start oF ihe singlQ
sweep fSEE RESET].
It4 all FwsitforH of the HORIZONTAL DISPLAY switch,
exci^pt A' and A' SINGLE SWE^P, the delayed trigger
is contrdlled ky TIME BASE B. In oil positions of Ihe
HORIZONTAL DISPLAY switch, ihe Uvne bose uted k
indicoiod by atight the OELAY^TIME MULTiPlfER
conifoJ.
uu/uMi--
1
35
TRIGGERING MODE [7 iwltches]
For TIME BASE A, lih& live postHon red TRIGGE'RING
MODE swrich leleds one of (our model of trigger ing
(AUTO,, AC. DC. OR AC IF REJECT), plirt synchronked
op&ratiofi IHF SYNC). For TIME BASE E, ih* three posi-
hon switch selects one of Ihtee ttiddu-s of triggdting
(AUTO., AC or DC].
TRIGGER SLOPE (2 swiiehei]
The TRIGGER SLOPE swilch leFnm the iweep Irig^
gerrng signal—ihe stgriql beirig displayed [+INT. =or
—INT.), an eKiernally darivE!d frigg&ring lignal (+EXT.
or —FXT], or the power- lino Wpve [+LINE pr—-LINE).
In Ihe +IHT,^ h-EXT., or +HNE posidons^ Ifiggering oc-
curs during the veil la go irite af iho trlggoring waveform,
In Ihe —INT,^ —EXT,, or —LINE positions^ trigger ing oc'
cufs during the valtoge foil of the tfiggering waveform,
STABIUTV {2 contrqltl
The red STABILITY conlrol odjusts the sweep For trig-
gered Of For Free running aperotien, Whert the TRIGGER-
ING MODE switch is in Ihe DC or AC posilbns [also AC.
LF REJECT, In TIME BASE A], the STABlLiTY cenird con
generally be used in the PRESET posiMon. When Ihe TRIG*
GERING MODE switch is in Ihe AUTO, position, the STA-
GtUTY eontrol ii dfsabkd. When the TRIGGERING
MODE switch is in the FIF SYNC position [Time Boie Al
the STABILITY conirol serves as the syndironizing eontfpl.
For monuol aperplipn af the varioble STABILITY cotitfol.
See ppge 30.
Uhv'l'Wii.l 31

TRiGCERKNG LEVEL |2 conirc^lt]
T>ie TRIGGERENG lEVEL Mnk&f cJtPef mines the voH-
-dge? iin fha lE-iggcrm^ signal al whirch Hie hqrii^anlql tfqce
wilt ilflfi. Ihk conirol di^iO'bJdd wh&n fhg TRIGGERING
MODE iwiich [i in Ihe AUTO, dr HE SYNC postEipnj-
5X MAGNIflEft
The sw&cp magnifier expandi ar\y (wo cenHinetef
pofTion of ihe cf is ployed woveform Iho fult im cenH-
meiler width of the grqtrtnle. The expanded iwo centi-
meter porlicKi ii dororniinod by Ihe aeiEing of Fhq HORI-
ZONTAL POSITION switch. When \htr SX MAGNIFIER
i$ turned ta ON, iho indicator lamp will light.
TIME/CM (TIME BASE A
I
The twenty-four poiition TIME/CM iwildi dclcririines
She sweep spo^ and the horijanlciJ liie of tfio- TfME
BASE Awove form. The CALIBRATED sweep rote is ob-
Eqined only when (lie ted VARIABLE control turned
ftJJy doekwisa,
VARIABLE (T1ME/CM1
The red VARIABLE [TIME/ CM) control pfosfides con-
lipgeiuj vntoiibfolod sweep lotes between the conges of
the TIME/ CM swildt The associated UNCALIBRATED
indicoSor lamp wiJI JIglit when Ihe VARIABLE Control fi
turned ffway from the CALIBRATED poiilion.
TIME/CM OR DELAY TIME [TIME BASE B)
The GighEeen position TIME /CM OR DELAY TIME
switch hqj, Iwo rgneiianiw tiependlng upon the salting of
Ihe HORIZONTAL DISPLAY switch. V/hert the HORI-
ZONTAL DISPLAY switch is ^ihe Bor the 'B' INTENSI-
FIED BY ’A’ posilions, fho TIME/ CM OR DElAV TIME
switch delermines Ihc sweep speed ond the hortzontol
lijfe of tho TIME BASE Bwavofoffn. When ihp HORI-
ZONTAL PtSPLAY switch is in the 'A* DEl^D BY Wposi>
lion, (ho TIME /CM OR DELAY TIME swilch determines Ihe
defoy lime nftEr the triggering signol Ihot TIME BASE A
sweep will fyn. fSc* OELAY-TIME MULTIPLIERJ.
LENGTH [TJME/CM Oft DELAY TIME!
The red LENGTH conTrol adjusts She sweep Jength of
the TIME BASE Bwaveform between appro* imatefy ^
ond 10 conlimoters. Turning iho LENGTH control emmter-
clockwisa reduces the length of the sweep, inciea^s Ihe
duly cycle, and Lrfigfilens the display. Normally the
LENGTH controf is Ml fully clockwise-,
DELAY-TIME MUITIPUER MO
The iftn turn canirof multiplies the setting of either ihe
TIME/ CM switch of TlJV£ BASE A, or the TIME/ CM OR
DELAV TIME switch of TIME BASE B, An mdicqtoj Fainp,
locoted above the DELAY-TIME MULTIPLIER, will light
designating the time base used, occordrng to ihe setting
of rho HORIZONTAL DISPLAY switch.
!a/|4U‘ I33