Text preview for : Micronta Digital Logic Pulser 22-304A.pdf part of Micronta 22-304A Hand Held Digital Logic Pulser from Tandy Corp. circa. 1986, English / French
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22-3044
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CETENnTEUR D'IMPULSIoNS LO G I Q UES NUMER IQU ES
P R I E R ED E LIR E A VAN T L 'U SAG E
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CONTROIS AND FUNC T I O N S
instrumenf LogicPulser o precision is YourMICRONTA@ With the touchof o button, to oid in logic-circuil testing. to o singlepulseor pulsetroin is delivered lhe circuit beingfested. to The LogicPulser worksfrom o wide ronge 14.7 volioge.lt hoso low impedonce, l5 voltsDC)of supply on circuit. ond incorporotes overlood-protection
Losic Pulser \\
The Tip Pin delivers single pulse o continuous o or troin of pulses the circuit to beingtested. The Jock odiocent the Tip Pinis for the connection to of the GroundLeod. The Ground Leod is usedwhenyou opplypowerto lhe Pulser from q different source thqn thof of lhe circuit beingtested. The PUSHButton octivoles oulse lhe circuit. The OUTput Indicofor lights wheno pulse being is generoted through Tip Pin. the The OVERLOADIndicotor lights whenthe Pulser is connected o power supplythot is morethon 'l 5V, lo or whenlhe current flowing through TipPinexceeds the morethon 200 mA. The PULSE/CONTinuous Switch mqkes possible it to select the either single continuous pulse or mode. The NegotivePowerLeodwith BlockClip isqttoched (-) to the negoiive terminol the powersuppry. of The Positive Powerleqd with Red Clip is oftoched (+) to the positive terminol the powersupply. of
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is lool lo the MICRONTA@ The LogicPulser o componion DigitolLogicProbe, Cot. No. 22-303. With thispoir of tools,you con pulseond monilorvoriouspoinlsin fhe circuilry ond con eosilylocoteo molfunctioning component group of components. or
O U T pu t Indr cator ( Gr een)
Tip Pin
P U S H B un o n
In d O V E RL OAD ica to r iRe d ) ( Re d Ctip ) e ULSE/CONTSwr tch I P u r se co Nr Switch
I |
Positive( +) power Supplv Lead
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Copyright 1986 TondyCorporolion
THE CONNECTING TOGIC PULSER THEPOWER TO SOURCE
CAU TIO N : DO N O TCO N N ECT MORE THA NI5V DCA CROS S THEPOWER LEADS THEPULSER. OF THE DO NOT REVERSE POLARITY WHEN THE CONNECTING POWER LEADS THE TO POWER SUPPLY.
I . Connect the power leods to o power source of between 4.7Y lo I 5V DC, observing correct polority. Connecl lhe posilive power supply leods (red clip) io o source of posilivevoltoge, ond the negotive power supply leods (blockclip) to o source of negotivevoltoge. lf you connect incorrectly,the OUTput indicotor will nol light when you presslhe PUSH button ond testingwill b e i mpos s ible. lf you connect the Pulserto more thon I 5V, the OVER LO A D indic ot orw i l l l i g h t o n d th e Pu l s e r i l l b e w ino pero liv e.Dis c onnecth e p o w e r l e o d s o n d re c o n nect t them to o proper power source.
l ::" '. .i " " P o w ER S U P PLY oblectr ve c' r tur t
2. Connect groundleod if necessory. the When the Pulser beingpoweredfrom o supply is independent the powersupply the circuii from for under test, groundleod shouldbe connected provide the fo o proper groundreference. the blockpower leod is lf connecled the ground reference the circuilunder to of test,then ihe ground leod does not need to be connecled. Connecl plugof the groundleodto the iocknext the to the tip pin,ond connect clipto o groundpointin the lhe circuitbeingtested. Cqution: When ihe Pulser poweredfrom o supply is independent from the power supply the circuii for under test,neveropply morevollogeto the Pulser thon the operoting volfogeof the circuit undertest.lf you do, fhe circuit underteslmoy be destroyed. Nofe: Be sureto disconnect groundleod fromthe the Pulser when il is not used. shortcircuit A couldoccurif the groundleod touches circuit the undertest.
pOW ER Pow er
Hutser 4.
Powe' Lead
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Ground' Lead
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Pulser
C o n n e c l i n gP u l s e ro Po we r Su p p lyWith o u t Usin g l Ground Leod
C onnecl i ng ul ser Independent ow er S uppl yU s i ng P fo P Ground Leod
INJ E C T I N G THEO UTPUT PUtSE
WARNING: DO NOT APPLY TIPPINTO THE THE TER M INA L THECIRCUIT E ING O U T P UT OF B TESTED. l. SetthePULSE/CONT to thePULSE CONT switch or
o osilion.
2. Touch tip pin to on inputpointof the circuit ihe to be tested. lf you fouchto the oufputpoint ond pressfhe PUSH buflon,the circuitbeing testedmoy be destroyed. lf the OVERLOAD indicotor lights whentouching the to inputpoint,it meons thotthe current the tip pin ot qt exceeds 200mA.Testing thotpointwill be imoossible.
position, lf the PULSE/CONT switch setto the PULSE is o single5pS pulsewith the woveformshownwill be generoted when the PUSHbuttonis pressed. lf the switch sel to the CONT position, 5Hz pulse is fhe troinwith the woveformshownwill be generoted os long os the PUSHbuttonis pressed. SinglePulse(5pS)
3. Press PUSH the button. Signol(5 Hz) Continuous TheOUTput indicqtor lightwhenihe pulse will rs generoted. lf theOVERLOAD indicotor wheniniecting lights the pulse, testing thotcircuit pointis impossible. ot whenthe tip Nofe: lf the PUSH button not pressed is pin is touched the circuit to point, output stoys the ot lowest level.
SAMPTE USES
Noles for CircuitLood ThePulser iniect pulse intothe circuit longos con o os the lood of the circuil less is thon200mA.In otherwords, the inputresisionce the testing of circuit shouldbe os follows: More thon 22.5 ohm ol 5V More thon 50 ohm ot I OV More lhqn 75 ohm of l5V For exomple: o For TTLcircuit, Pulser driveobout I 00 the con gotes porollel, in including I kohmpull-up one resistor. o For LSTTLcircuit, Pulser the cqn driveobout 500 gotesin porollel, including one I kohm pull-up resistor. o For CMOS circuit, Pulser fhe con driveony number porollel of gotes. connecled Note: Thereis o possibiliiy the currenlot the tip thot pin moy exceed20OmAwithoutOVERLOAD indicolion, cousing low level the vohoge the fip pin to be higher ol lhon 0.7V.In thiscose, TTLgotesmoy nof be driven, fhe evenlhoughthe PUSHbuttonis pressed ond the green OUTput indicotor lighted. is TheDigifol LogicPulser designed be usedin is to coniunction o Digitol with LogicProbesuch our os Col.No. 22-303.ThePulser ollowyou to inject will o knowndigitol intoo logiccircuit. Logic signol The Probecon delectthissignol il is modified the logic os by componenis the circuit. you knowwhot the circuit in lf is,ond if you knowwhot signols present lhe goles, ore ot thenthe outputsignolshouldbe totollypredictoble. lf the outputdetecied the Probeis different by from thol whichwos expecled, then eifherthereis o foulty component lhe circuit, the circuit in or design ot foult. is Thesymbols lhe different for bosiclogic devices ond theirtruthloblesore shownbelow.
:ID.
HI HI HI HI LO LO
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HI LO
:A--l
F FTL._ AND. ABC
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IN CASE PROBLEMS OF
O FLIP.FLOP
I I{PUTS
OUTPUTS
RESEI LO LO LO
HI
lf your LogicPulser seems be workingimproperry, to try thesehints: 'l . Moke sureyour Pulser properlyconnected is or grounded. 2. lf on overloodoccurs, your Pulser becomes inoperotive. Checkto see if the OVERLOAD indicotor is on. SPECIFICATIONS PowerSupplyVoltoge(Ronge):4.7 - 15 V DC Outpuf Voltoge: High Level:Above 3V ot 5V Above 7V ot IOV .|0.5V Above ot l5V Low Level: Below0.7V Oulpuf Currenf:200mAMox. Lood 22.5 ohmMinimum 5V oi 50 ohm Minimum I OV ot 75 ohm Minimum I5V ot Oufpul Signol: Continuous Hz 5 5,"S Single Voltoge Overlood Indicotion: PowerSupply Above 20V Lood 7 ohm ot 5V 20 ohm ot l0V 40 ohm ol I 5V 11
-
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SET LO LO LO LO
HI
LOiHI
HI
LO
xo CHIIGE xo ql^lc LO
HI
HI LO
HI
LO
HI
HI
HI
lf, for exomple, you wished lo test on AND gole for pro p e r oper ot ion,y ou c o u l d c o n n e c t i t o s fo l l o w s :
Logrc Pu lse r
L o g r c Pr o b e
Theoutput followthe input. morecomplex should In the We circuits, outputmightvory differently. suggest thot you reod "Understonding DigitolTroubleshooting," o book ovoiloble your locolRodioShock ol (Cot.No. 62-1398), o more in-depihexplonotion for of digitollogiccircuits.
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RAOIOSHACKLIMITEO WARRANTY
This product is warrantedagainstdefets fo( ninety (90)days lrom the date ol purchaselrom Badio Shack company-ownedstoresand authorized Radio Shack dealers.Withrn thrs period Radio Shack will repair the product without charge for parts and labour. Simply brlng your Radio Shack sales slip as proof-of-purchase date to any Radio Shack store. Warranty does not cover transportalion costs Nor does it cover a producl subJected lo misuse or accidental da mag e . EXPR ESS OR E X C E P TA S PFOVIDEDHEREIN,FADIO SHACK M AKES NO W AR R AN T IES. IMP LIE D ,IN CLUOINGW ARRANTIES OF M ERCHANTAB ILIT Y D F IT N ESSF OF A PAR AN T IC U LA B P U FPOSE
Thls war r anly q v e s y o u s p e c r f c l e g a l f l g h l s a n d y o u m a y h a v e o t h e r n g hl s w h r ch va r y tr o m p r o vr n ce to p r o vr n ce
WE SERVICE WHAT WE SELL
RADIO SHACK DIVISION,ELECTRONIOUES TANDY LIMITEE
CANADA: gARRlE, ONTARIO L4U 4W5 E.-u.: FoRT woRTH. TExAs 76102
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22-3044
CETENnTEUR D'IMPULSIoNS LO G I Q UES NUMER IQU ES
P R I E R ED E LI R E A VAN T L 'U SAG E
* MAROUE Ct)MMEflCT O OT TAIItlY C()RPt]flATIOl{
MI CRO \ T T A @*
LESCOMMANDES ET LEURS FONCTIONS
l d' L e g 6 n6r at eur im p u l s i o n s o g i q u e sMIC R ON T Aoest un des i n stru m ent pr 6c is i o nq u i fa c i l i tel a v 6 ri fi c a ti o n de P ci rcuit slogiques . a r s i mp l e p re s s i o ns u r u n b o u ton,on au e n vo ieune im puls io ns i m p l eo u u n tra i n d ' i mp u l s i ons ci rcuit d v 6r if ier . fo L e g 6 n6r at eur im p u l s i o n s n c ti o n n ed a n s u n e l a rge d' g a mm e ( 4. 7 d 15 v ol ts e n C C ) d e te n s i o n sd ' a l i m e ntati on. d l l p o s s ddeune bas sei m p e d a n c e e s o rti ee t u n c i rcui t d e p r ot ec t ionde s urc h a rg e .
G6n6rateur d ' i m p u l si o n s Sonde logi que, n' 22- 303
La pol nte i nj ecteune i mpul si onsi mpl eou un t r ain conti nu d' i mpul si ons ci rcui t d v6ri fi er. au La prl se voi si nede l a poi ntesert au branchem ent du conducteur de masse. Le conducteur de masse s'utilisequand on alimente le g6n6rateur parti r d' une sourcedi ffdrent e celle du d de ci rcui t i v6ri fi er. Le bouton-poussolcommandel e ci rcui t d 'im pulsions. r Le voyant de sortle (OUT) s'allumequand la pointe 6met des i mpul si ons. Le voyant de surcharge(OVERLOAD)s'allumeguand la tensi ond' al i mentati on g6nerateur s up6r ieur e 15 du est a vol ts ou quand l a poi nteest soumi sed un cour ant d6passant 200 mA pendantl a vdri fi cati on. Le s6lecleurd'lmpulslonsimple/tralnd'impulsions permetde choi si rentre une im pulsion (P U LS E /C ON T) si mpl eet un trai n d' i mpul si ons. Le conducleur n6gatll d'allmentatlon plnce nolre se i branched l a borne n6gati ve I' al i mentat ion, de Le conducteur posltlf d'allmentation plnce rouge se i branched l a borne posi ti vede I' al i menta t ion.
U ti l i seav ec la s onde l o g i q u e ,n o 2 2 -3 0 3d u c a ta l o gue p d R a d ioS hac k ,c e g6n 6 ra te u r ' i mp u l s i o n s e rm e tde l v6 ri fi err apidem ent e s c i rc u i tsl o g i q u e se t d e l o c al i serun d co mpos antou gr oup e d e c o mp o s a n ts 6 fe c tu e u x .
Conducteur positif (+) Voyant de sortie {vert) Voyant de surcharge (rouge) Boulon-poussoir 56lecteur d rmpuJsron alimentation (pince rouge) l ./=_
I
-
prise
:-*rConducteur de masse
Conducleur ndgatrt (-) alrmenlation (pince notre)
de Tous droits r6serv6s TandY C o rp o ra ti o n1 9 86
BRANCHEMENT GENERATEUR DU D'IMPULSIONS LOGIOUES L'ALIMENTATION A
ATTENTION: N E PA S RE LI E RUN E T E N S IO NC C D E P L U S D E 15 V AUX CONDUCTEURSD'ALIMENTATIONDU GENE RA T E UR. LA NE PAS INVERSER POLARITEOUIIIIO ON RELIE A LES CONDUCTEURS I-'IUIMCruTATION. a 1 . Bra nc herles c ond u c te u rs ' a l i m e n ta ti o n u n e s ource d CC comprise enlre 4.7 et 15 V, en respectantla polarite. p R e l i e rle c onduc t eu rd ' a l i m e n ta ti o n o s i ti fd p i n c e rouge pos it ifde la s o u rc ee t l e c o n d u c te u r a u c6t 6 n6ga ti fd p i n c e n o i re a u c o te n e g a t i fde l a d 'a l i ment at ion l so u rc e.E n c as de br a n c h e me n itn c o rre c t, e v o y a n tde so rti e ( O UT P UT )ne s ' a l l u m ep a s q u a n d o n p re s s el e il bouton-poussoir; n'est pas possiblede v6rifierle ci rcu it . l Si I'on appliqueplus d e ' 1 5 v o l ts a u 9 6 n 6 ra te u r,e voyant ) ; d e su r c har ge( O V E R L OA D s ' a l l u m e o n n e p e u t p as l D et u ti l i serle 96n6r at eu r. 6 b ra n c h e r e s c o n d u c te u rs l es re b ra nc her une ali m e n ta ti o n o rre c te . c d 2. B rancherl e conducteurde masse,l e cas 6ch6ant . Quand I' al i mentati on g6nrateur ent d'une sour ce du vi i nd6pendante, l i serl e conducteurde m assedispose uti d' une massede r6f6rence pour l a v6ri fi ca t ion. le Si conducteur noir est relie a la massede r6f6rencedu ci rcui t d veri fi er, n' a al ors pas d branc herr e on conducteurde masse. B rancherl a fi che du conducteurde massedans la pr ise voi si nede l a poi nte.B rancherl a pi nce i une m asse, sur l e ci rcui t d v6ri fi er. Avertissement: Lorsque le gendrateur d'impulsions est aliment6 par une source d'alimentation autre que celle du circuit a v6rifier,ne jamaisfournir au g6nerateurplus de tension que la tension d'exploitation requise pour le circuit que est v6rifier. Autrement,le circuit ?rv6rifier pourrait etre d6truit. R emarque: ei l l erd d6brancher e conduct eurde m asse V l du generateur quand on ne I' uti l i se pas,sinon on r isque de provoquerun court-ci rcui t ce condu ct eurenr r e en si contactavec l e ci rcui t d veri f er. i
Atrmen tatron 4lV na
.- l: .=
C o n d u cte u r
Alimen
Cir cur tA v6r ifiel
Conducleur o attmentatton {-) 6"nerateu\ ";._aConducteur fdemasse Conducteur d alimenta(ion /-) \:-: Clrcurt a verrlier
co n d u cte u r (-) d 'a l i me n ta ti o n
4 7v - 15V Entr ee ck. DC
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' Gendr ateur
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Branchementdu gdnrateurA une a l i me n ta ti o nsansconducteurde m asse ,
Branchement du gdnerateur a une attmentation ind6pendante. avec conducteUr de masse
INJECTIONDE L'IMPULSION DE SORTIE
AVERT I S S E M E NT : E PA S AP PL IQU ER A POIN TE N L SUR LA B O RNE DE SOR T IED U C IR C U ITA VE RIFIE R . 1 . Me t t r e le s 6lec t e u r ' i mp u l s i o n i m p l e /tra i n s d ( ) d 'i mpuls ions P ULS E /C ON T A l a p o s i ti o nd ' i mp u l si on (PULS E )ou de t r ain d ' i m p u l s i o n s O N T ). (C s Si I'on ut ilis ela pos i ti o nd ' i m p u l s i o n i m p l e ,o n c r 6e une i mp uls ionde 5 ps de l a fo rme d ' o n d e i n d i q u 6 eq u and on pressele bouton-poussoir. Si I'o n ut ilis ela pos i ti o nd e tra i n d ' i m p u l s i o n so n cr6e , u n e i m puls ionc ont i n u ed e 5 H z d e l a fo rm e i n d i q u6e, ta n t q ue I ' on pr es s el e b o u to n -p o u s s o i r. lmpulrlon slmple (5 pS) 2. A ppl i querl a poi ntesur I' entree ci rcuit A ver if ier . du Si I'on applique la pointe sur la sorlie et si I'on pressele bouton-poussoir, rlsque de d6t6riorerle circuit i on v6rifier. S i l e voyantde surcharge(OV E R LOA D s, allum e ) quand on touche I' entree ci rcui t,l e couranti r la point e du d6passe 200 mA . On ne peut pas v6ri fi erl e cir cuit a ce poi nt.
D6conselll6
<{ ,' ./>
.rt ./ t\^ " So.tie '
(5 Signalcontinu Hz)
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3. P resser e bouton-poussoi r. l Le voyantde sorti e (OU T) s' al l umequand le gen6r at eur produi t I' i mpul si on. S i l e voyantde surcharge(OV E R LOA D ) s'allum equand on i nj ectel ' i mpul si on,a v6ri fi cati on ce p oint du cir cuit l a n'est pas possible. R emarque: i l ' on ne pressepas l e bouton- poussoir S quand on met l a poi nteen contactavec l e cir cuit ,la sorti e resteau ni veaul e ol us bas.
EXEMPLES D'UTILISATION
Remarquessur la charge des circuits peut i n j e c te ru n e i m p u l s i o na u c i rc ui t L e g 6n6r at eur q u a nd la c har gede c e d e rn i e re s t i n f6 ri e u re 2 0 0 mA . d Au trem entdit , la r es i s ta n c e ' e n tre ed u c i rc u i t A v eri fi er d d o i t 6t r e: d S up6r ieur e 2 2 .5o h ms a 5 V S updr ieur e 5 0 o h ms a 1 0 V d S uo6r ieur e 7 5 o h ms a 1 5 V d Pa r ex em ple: . Av ec un c ir c uit T TL , l e g 6 n 6 ra te u r e u t c o m m a nder p , e nv ir on100 por t e se n p a ra l l d l ey c o m p ri su n e r6s is t anc e c ha rg ed e 1 k i l o h m. de o Av ec un c ir c uitT TL d h a u te d e n s i t6 ,l e g 6 n 6 ra teur y p eut c om m andere n v i ro n5 0 0 p o rte se n p a ra l l d l e, d com pr is une r 6s is ta n c e e c h a rg ed e 1 k i l o h m. o Av ec un c ir c uit C M O S , l e n o m b red e o o rte se s t sans i m por t anc e. ll R e mar que: s e peu t q u e l e c o u ra n td l a p o i n ted 6passe 2 0 0 mA s ans que le v o y a n td e s u rc h a rg e(O V ER L OA D ) s'a l l u m eet que la t e n s i o nd e b a s n i v e a uA c e tte p oi nte a so i t s up6r ieur e 0. 7 V. D a n s u n te l c a s , o n n e p e ut pas co mm anderles por te sT T L , m 6 m e s i l ' o n p re s s el e b o u ton- pous s oir s i l e v o y a n tv e rt s ' a l l u m e . et Le gen6rateur i mpul si ons ogi quesnum6r iques d' peur l s' uti l i ser avec une sonde l ogi quenum6ri q ue, com m e le n" 22-303du catalogueRadio Shack. Le g6n6rateur permetd' i nj ecter e si gnal num6ri queconnu dans un l ci rcui t l ogi que.La sonde peut detecterl e signal,t el qu'il est modi fi 6par l es composants ogi quesdu cir cuit .Si l I' on connai tl a naturedu ci rcui t et l es si gnauxpr 6sent s aux portes,on doi t al ors pouvoi rpr6voi rl e signal de sortie.Si la sortie detect6epar la sonde differe de celle pr6vue,un composantdu ci rcui t est al ors d6f ect ueux; la concepti ondu ci rcui t peut aussietre en cause.Les symbolesdes diff6rentsdispositifslogiquesde base et l eurstabl esde veri t6sont donn6sci -dessous.
N O N -E T
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:D"
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EN CAS DE PROBLEME
Basculed dtablissem ent/r dtablissemenl Sorties Entr6es
Horloqe
Donnees
LO HI
SET LO LO LO
RESET LO LO LO HI LO
HI
o
LO HI
o
HI
Donnde Horloge
LO
Pas de changemenl LO
HI HI
X
LO
HI
HI LO
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