an introduction to bally flipper games

5/26/2018 An Introduction to Bally Flipper Games

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M NUF CTURING CORPOR TION2640 Belmont Avenue Chicago Illinois 60618 U.S.A.TELEPHONE 312) 267-6060/TELEX NO. 253076/CABLE ADDRESS: BALFAN


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TABLE OF CONTENTSPAGE

INTRODUCTION --------------------------------------------------1-TERMS AND DEFINITIONS - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 3SYMBOLS - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 8WIRE COLOR CODE - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 10LUBRICATION - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 11SWITCH CONTACTS - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 11SCORE MOTOR UNIT - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 12RELAYS

11 G11 Type - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 15Trip Bank - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 17In te r lock - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 20

STEP UP UNITSContinuous Rotat ion - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 21Tota l Reset - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 21Sing le Step Reset - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 21

CREDIT OR REPLAY UNIT - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 24SCORE DRUM UNIT - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 25SCORING DEVICES

Rol l Over Wire - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 26Target - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 26Rol l Over But ton s t a r type) - - - - - - - - - - - - - - - - - - - - - - - - - - 27Roll Over But ton round but ton t y p e ) - - - - - - - - - - - - - - - - - - - - 27Sl ing Shot - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 28Rubber Rebound s tand up) - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 28Mushroom Bumper - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 29Bumper Target - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 29

THUMPER BUMPERAC Type - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 29DC Type - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 30

FLIPPERSStandard - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 31Closing - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 32

3 BALL IN PLAY GAME - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 33BASIC CIRCUITS - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 34INTRODUCTION TO SERVICING - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 38TROUBLE SHOOTING HINTS - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 41


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INTRODUCTION

It i s the purpose o f t h i s o u t l i n e to summarize the e s s e n t i a l componentst ha t make up a coin opera ted amusement game. It i s wri t t en , pr imar i ly ,t o .p rov ide a foundat ion and background for the men who se rv ice thesegames. No one can hope to memorize every d e t a i l o f every c i r c u i t andcomponent in today s g re a t v a r i e t y o f games. good t echnic ian doesnot even a t t empt it. Ins t ead he should be able to obta in informationas he needs it from the i n s t ruc t ion sheets , drawings and schemat icsprovided with each pa r t i c u l a r game. To do t h i s , he must be ab le toread and i n t e rp r e t the schematic diagram. The a b i l i t y to read a draw-ing , coupled with the bas i c pr inc ip les o f e l e c t r i c i t y w i l l make itmuch eas ie r to unders tand ad jus t , opera te and r e p a i r NY G ME o re l e c t r i c a l dev ice .

UNDERST NDING SCHEM TIC CIRCUITSThe schematic c i r c u i t i s a complete drawing of a l l the i nd iv idua l e l e c -t r i c a l c i r c u i t s . shorthand system o f symbols and l i nes are used.The symbols rep re sen t swi tches , c o i l s , fuses , e t c . The l i nes i n d i ca t ehow these are connected t oge the r .

knowledge of the mechanica1 movement o f the components t ha t ac tua tethe var ious swi tches i s necessary . Not a l l the swi tches o f a compo-nent assembly are c lose toge ther on the schematic drawing. The swi t -ches o f an assembly a re divorced and shown ind iv idua l ly in only t ha tc i r c u i t in which it i s used. At f i r s t glance the schemat ic may lookcomplicated. Actua l ly it i s nothing more. than a co l l ec t ion of manysimple c i rcu i t s , each designed to do a pa r t i c u l a r job . In t roub leshoot ing it i s important to i s o l a t e the problem. Reference to theschemat ic i s then made only to those c i r c u i t s t ha t apply .

TROUBLE SHOOTINGNever experiment with any of the mechanism. Improper adjustment ormakesh i f t repa i r , w i l l only cause se r ious damage to othe r p a r t s of themachine or repea ted f a i l u r e o f the pa r t .To se rvice any co in opera ted amusement game in a minimum of t ime itlS necessary to i s o l a t e the problem to a pa r t i c u l a r c i r cu i t . systemo f l og ica l e l imina t ion w i l l reduce the poss ib l e t roub le spots .This i s done by at tempt ing to play the game and observing the r e su l t s .With a l t t l ~ reasoning, a br i e f re fe rence to the schemat ic and per -haps a con t inu i ty check wi l l inev i tab ly determine the cause .

v i sua l inspec t ion of the components in the poss ib l e t roub le a reamay of t en save t ime. Always look fo r a poss ib le loose wire, badconnect ion a t plug o r socket , and broken o r unhooked spr ings on s t ep -ups r e lays , e t c .


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SAFETYCer ta in sa fe ty requ i rements should be kep t in mind when a co inmachine i s being se rv iced . t i s important to remember t h a t cur ren ti s the e l e c t r i c a l shock f ac to r r a th e r than the amount o f vol tage .Curren t f low i s equal to t he vol tage divided by the r e s i s t an ce . Whenthe sk in i s wet o r moist t he con tac t r e s i s t an ce may drop to as lowas 300 ohms. With t h i s low body r es i s tance even a r e l a t i ve low v o l t age can supply enough cur ren t to be f a t a l . Do not work on any e l ec t r i c a l equipment with wet hands o r while wearing wet c lo th ing o rshoes . Shoes with wel l in su la ted soles and hee l s should be worn.Cleaning solvents when used requ i re c e r t a i n s a f e ty percau t ions a l so .Vola t i l e l iqu ids such as benzo l t u rpen t ine and kerosene can be dangerous because of the poss ib l e i g n i t i n g of fumes by a spark . I f thesel iqu ids are to be used be sure the game i s tu rned o f f and t ha t t he rei s s u f f i c i e n t v e n t i l a t i o n to avoid an accumulat ion o f fumes and t h a ta l l fumes are c l ea red b e fo re the game i s turned on.Carbon t e t r a ch lo r id e al though it does not c r ea t e a f i r e hazard i sdangerous because o f the ill e f f e c t s of brea th ing i t s vapor. t mayr e s u l t in headache nausea o r d izz ines s . In a poor ly ven t i l a t ed spaceit can cause u n o n i o u s n ~ s s o r even dea th .Avai lab le a t many l oca l e l e c t r i c a l o r rad io supply houses are manycommercial solve.nts fo r e l e c t r i c a l and mechanical equipment. Thesel eave no r es idua l depos i t s are non-inflammable and come in conveni e n t spray cans .

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CTU TOR

DJUSTMENT

RC

RM TURE

BACK UP BL DE

BALL EJECT .SOLENOID

BALL SHOOTER

B NK

BL DE

BONUS SCORE

BUMPER

BUMPER SKIRT

BURNISHING TOOL

C M

CIRCUIT

TERMS ND DEFINITIONS

That por t ion o f a dev ice t h a t opera tes aswi tch .The spacing o f con tac t s on switch bladesin a switch assembly The placement ofc e r t a i n l eve rs pawls s top bracke t s pos t se t c .The discharge o f e l e c t r i c a l energy througha gas such as Air .A moveable piece o f meta l a t t r a c t e d by amagnet ic f i e ld .An au x i l i a r y blade to dampen the v ib ra t ionof ts ad jo in ing opera t ing blade .The so leno id to ope ra t e mechanism to kickb a l l out o f a hole o r pocket .The spr ing loaded rod operated by theplaye r to prope l the b a l l in to the playf i e l d area .A number o f r e l ay s mounted in to a commonassemblyA high ly conduct ive spr ing type meta l inthe use o f a swi tch .An accumulated score added to the t o t a lscore when a c e r t a i n f e a t i s accompl ishedA round p l a s t i c assembly mounted on thep layf i e ld with an a t t ached s tem to opera tea switch when h i t by a b a l l .Lower c i r c u l a r pa r t o f a bumper which moveswhen s t ruck by a b a l l .A non-abras ive s t r i p coated with minutepa r t i c l e s o f meta l used to c lean switch cont ac t s .A meta l p l as t i c or b ak e l i t e di sc withnotched dwel ls q r lobes a t t ached to a motoshaf t o r extens ion o f a motor sh a f t . Thedi sc opera tes assoc ia t ed swi tches when motoi s opera t ing .A c losed network o f conduc tors t h ru whichan e l e c t r i c cu r r en t can f low

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COIL

COIL STOP o r CORE PLUG

COIN CHUTE

COIN LOCKOUT COIL

CORE

CURRENT

DISC

DRIVE RM

DRIVE P WL

ESC PEMENT P WL

FLIPPER

G P

Many t u rns o f in su la ted wire wound on aspool . Used to crea te a magnetic f i e l dwhen energ ized .smal l assembly a t the bottom of a so l eno id which i s used as a s top fo r theplunger .

Mechanism t h a t t e s t s co in fo r s i ze we igh tand mater ia l before pass ing th ru toac tua te co in swi tch .

device mounted on the coin chute assem-b ly t ha t al lows co ins to drop to the coinchute switches when the c o i l i s energ ized .When not energ ized the coins are re j ec tedand re turned to p layer .The s t a t i o n a ry s o f t i ron in the cen te r o fa c o i l winding as in a r e lay or t r a n s fo r mer.The f low of e lec t rons caused by an e l e c t r i c a l force ca l l ed vol tage . The amountt ha t w i l l f low for a given vol tage i s dependent on the e l e c t r i c a l impedance o f thec i r c u i t . The u n i t of measurement o f cur r e n t i s ampere.The s t a t ionary bake l i t e piece to whichr i ve t s o r e tched copper laminate i s a t t a c h ed. Used on s tep-up un i t s drum un i t smotor u n i t s e t c .The s tep-up lever t ha t i s operated by thesolenoid plunger to advance the ra t che tgea r .Attached to the dr ive Arm t engages thenex t too th of the ra t che t gear to advancewhen so leno id i s de-energized. Advancingthe r a t c h e t i s done by spr ing connectedto the dr ive arm and dr ive pawl.Used to s ingle s t ep re se t type un i t tal lows the ra t che t to r e tu rn only one po-s i t i o n when the r e s e t pawl i s disengaged.E l e c t r i c a l l y operated ba t - type l ever con-t r o l l e d by player to manipula te the b a l lon t he p l a y f i e l d .Air space between a s e t of contac t po in t s .

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G TE

HOLD OVER

INSERT

INSUL TOR

INTERLOCK REL Y

L TCHLITE BOX

LINKLOCK RM

LOCK IN

M GNET COIL

MOUNTING P NEL

one way device t ha t al lows the b a l l toe n t e r the playf i e ld o r an a l l e y on thep lay f i e ld and ac t s as a rebound in theoppos i t e di rec t ion . Also an e l e c t r i c a l l yopera ted device t ha t w i l l a l low t he b a l lto en te r b a l l shoote r a l l ey and be shotaga in wi thou t being counted.Genera l ly a fea ture o f the game t h a t i sno t r e s e t a t the beginning o f a new game,r a t he r it i s ca r r i ed on un t i l the f ea tu reaward i s earned . Hold over may a l so applyto a fea ture of the game t h a t r e s e t s a tt he s t a r t of a game, but i s c a r r i e d overfrom b a l l to b a l l during a game. t maybe a hold over u n t i l the s t a r t o f a gameo r it may be a hold over un t i l the f ea tu reaward i s earned .Carr ied over more than one p lay on themachine.The pane l mounted in the back box on whichdrum un i t s l i t e s r e l ays o ther un i t s a remounted.

mate r i a l t h a t does no t conduct e l e c t r i c acu r ren t .re l ay cons i s t ing o f two co i l s whose armat u re s are mutual ly locked in mechanical ly .mechanica l ly locking device .

The wooden box mounted on the r e a r of thecab ine t . Sometimes r e fe r r ed to as a back-box.Connecting piece between two moving p a r t s .

mechanica l l a t ch device on a s tep-up u n ito insure f u l l r e tu rn index) of the r a t c hupon r e se t . Sometimes ca l l ed a ca t ch pawlor a r e s e t l a t ch .term appl ied when a r e l ay i s kep t ener gized th ru a switch of i t s own, a f t e r theor i g i na l source of energy has been removedc o i l wound around a s t a t iona ry s o f t i roncore such as a r e l ay co i l .

The board located on f l oo r in s ide cab ine tused to mount t r ansformer score motor un ir e l a y s uni t s e t c .

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OUT HOLE

PL YFIELDPLUMB TILT

PLUNGER

R TCHET

REJECTOR

REL Y

REPL Y BUTTON

RESET P WL

RESIDU L

RESIST NCE

SCHEM TIC

SEQUENCE

SHOOTER

Refers to hole or cup a t bot tom sec t ion o fp l a y f i e l d loca ted under bottom arch . Dur-ing play o f game, the ba l l i s kicke0. out o foutho le by the outho le kicker , over theba l l t rough to shooter or a l l e y .Play a rea o f game.Pendulum type t lt switch gene ra l ly l oca t edon cabine t to l e f t of coin box.

s o f t . iron rod t ha t i s a t t ached to thes o l en o id s magnet ic f i e l d . This movementi s l inked to do mechanical work.c i r c u l a r notched geared) piece o f metalo r p l as t i c used to ro t a t e s tep-up un i t .

see coin chu te ) .n e l e c t r i c a l l y opera ted component t h a t ~con t ro l two o r more c i r c u i t s from the com-p le t ion of one c i r c u i t .

Mounted a t t he f ron t of the game and usedby the p laye r to s t a r t a new game withou tthe use o f a coin .Holds the ra t che t in pos i t ion between s t ep ups so t h a t the wiper assembly i s cente redon r i ve t s . Also prevents the r a t c h e t fromr e se t t i n g between s tep-ups on a r e se t typeun i t . Sometimes r e fe r red to as a indexpawl.The unwanted l e f t -o v e r magnetism l e f t inthe armature a f t e r the e l e c t r i c a l energyhas been removed.Proper ty o f mat te r t h a t r e s t r i c t s or im-pedes the f low o f e l e c t r i c a l cur ren t .Measured in un i t s ca l l ed ohms.Drawing showing complete wir ing o f a l lcomponents by means of a shorthand sys temo f symbols and l ines .

de f in i t e pre-de termined pa t t e rn or ordero f operat ion: .Spr ing loaded rod opera ted by p laye r toprope l b a l l from shooter a l l e y onto p l a y f i e ld .

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SL M TILT

SLEEVESLO BLO FUSE

SOLENOID

STEP-UP UNITI I SWITCH SPACERS

THUMPER BUMPER

TORSION SPRING

TR NSFORMER

WIPER SSEMBLY

Switch assembly with an a t tached weightto the end o f the long blade so t h a tswi tch w i l l make i when game i s j a r r e d o rbounced.A replaceable l i n e r in s ide a solenoid .A delayed ac t ion fuse . Can withs tand amomentary surge o f high cur ren t but w i l lopen up i the excess cur ren t i s sus ta ineA c o i l o f i n s u l a t ed wire wi th a hol low coin to which a plunger i s pul l ed when c o i li s energ ized .An e l e c t r i c a l l y dr iven r o t a r y type o f swiSmall b ak e l i t e pieces separa t ing one swi tblade from ano ther .Bumper t ha t automat ica l ly kicks the b a l lwhen b a l l h i t s bumper s k i r t .Spring around a sh a f t t h a t winds up as t hsh a f t i s ro ta t ed .An e l e c t r i c a l component cons i s t ing o f twoo r more coupled windings, with or withouta magnet ic core fo r inducing mutual coup-l i n g between c i r c u i t s . Pr imar i ly used to change vql tage r a t i o sup o r down.The ro ta t ing con tac t blades t ha t completethe c i r c u i t o f a s tep-up u n i t di sc assemb

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:T* D X]fr EJ

j

SYMBOLS

Normally open, c losed when energ ized ,make or type A sw.

Normally c lose , open when energized,break o r type B sw.

Transfe r , make-break or type C sw.

Double make, make-make o r type D sw.

Score Motor Operated Switch.

Fuse

Motor

Li tes

Line Plug

Grounding Connection

Coi l re l ay co i l o r solenoid

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SYMBOLS

TR NSFORMER

WIRES CONNECTED

WIRES NOT CONNECTED

RESISTOR

~ 1 t - -- CAPACITOR or CONDENSER

DIODE or RE TIFIER

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BALLY WIRE COLOR CODE

1. RED -R - )2. BLUE -B1u-)3 . YELLOW -Y-4. GREEN -G- )5. WHITE w Dash before abbrevia t ion usedonly when there i s no t r a c e r .6. BROWN7. ORANGE8 . BLACK9. GRAY0 . No TracerJ . Jumper

F i r s t numberSecond numberThird numberaf t e r dash)

EXAMPLE:

-Br-- 0 --B- )

Gray )

= wire body co lo rt r ace r colorre -use o f same color wire .

50 = White wire wi th no t r ace r51 = White wire wi th red t r a c e r51-1 White wire wi th red t r a c e r used 2nd t ime51-2 = White wire wi th red t r a c e r used 3rd t ime

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I

I

LUBRICATION

Over- lubr ica t ion causes f a r more t roub le in coin-opera ted equ ipment than ~ n d e r l u b r i c a t i o n . Pra c t i c a l l y a l l cases of poor cont a c t on switches and wiper d iscs are due to o i l or grease , or o i lvapor which forms a f i lm or res idue on the contac ts and wi l l notal low current to pass through. Excess l ub r i can t may a l so seepi n to the clu tches , causing them to s l i p .IMPORTANT: NEVER USE VASELINE FOR LUBRICATION OF NY P RT OF THEMACHINE. Vase l ine i s not a t rue lubr i can t . t leaves a d i r t yand gummy res idue and it becomes very t h i ck when cold . A spec ia lCoin Machine Lubricant i s suppl ied with each machine.Step-up l ever s , Ratchets , Cams, Shaf ts and other s l i d i n g o r o s c i l l a t i ng pa r t s should be very l i gh t l y greased wi th spec ia l CoinMachine Lubricant suppl i ed wi th machine) not of tener than everys i x months . The b a k e l i t e discs on the Motor Uni ts and Step-upUni t s wi l l r equ i re l ub r i ca t ion with the spec ia l Coin Machine Lubr ican t only a f t e r t he grease i s completely evapora ted 3-12 months,depending on cl imate or when the f i lm of grease becomes d i r t y .In e i the r event , c lean the pa r t s thoroughly with a solvent and ac lean so f t c lo th , then apply an extremely th in coa t of the spec ia lgrease with a f ine camels ha i r brush .Solenoid Plungers should not have a l ub r i can t of any kind. Shouldthe re be a s luggish tendency or if plungers are s t i ck ing , the par t sshould be cleaned with a solvent and f l aked graphi te appl ied on re assembly.

SWITCH CONT CTSThe contac t po in t s , as used on the swi tches , are genera l ly made ofs i l v e r which has a high conduc t iv i ty of e lec t r i ca l cur ren t . In somecases , va r ious a l loys of s i l ve r are used such as .a combination o f85 s i l ve r , 15 cadmium, 83 s i l ve r , 17 cadmium oxide. Certa ina l loys are used for spec i f i c requ i rements such as high cur ren t , lowres i s t ance , e tc . I f po in t replacement i s necessary be sure to re place with the proper equiva lent .Whenever a replacement poin t i s se t , it i s important t ha t the unders ide of the po in t i s peened ca re fu l ly so t ha t it i s sea ted evenlyand t i gh t l y . This inc reases the cur ren t car ry ing capac i ty to i t smaximum e f f i c i ency . A loose po in t wi l l cause arc ing and burning ofthe blade , eventua l ly the po in t wi l l f a l l out . When the contac t a reo f the po in t becomes d i r ty , or pi t t ed , a burni shing t oo l should beused. F i l i n g of the points i s not recommended, as the grooves, causby the f i l e , t end to inc rease the arc ing resu l t ing in a prematureshor t l i f e .

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SCORE OTOR UNIT

The score motor u n i t con t ro l s t h e sequence o f t h e v a r io u s c i r c u i t s .This i s accomplished by a motor d r iv en s e t of cams t h a t o p era t et h e i r r e s p ec t i v e swi tches in a f ixed p a t t e rn .

This assembly i s used in every p in b a l l game and cons i s t s of a frame,a motor , and cams, mounted on a common s h a f t , the cams a re numberedin sequence s t a r t i n g wi th #1 cam c l o se s t to the motor . The camswi tches a re l e t t e r e d a l p h a b e t i c a l l y s t a r t i n g with A fo r t h e bottomswi tch o f a swi tch s t ack . For example, swi tch 3B,SCM i s a swi tchon the score motor u n i t (SCM), opera ted by #3 cam 3) , and i s thesecond swi tch B) from the bot tom o f the swi tch s t ack .

The motor has to rece ive a s t a r t i n g p u l s e from v ar io u s sources ; how-ev e r , t w i l l cycle i t s e l f , one h a l f revo lu t ion (180 ro t a t ion) bymeans o f motor run swi tch on #1 cam.

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S ORE OTOR

C M SWITCHES

5 6 7 8 9 1 11 12

\OUNTINGBR CKET13


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SCORE MOTOR UNIT typ ica l )

Components: FrameMotor (26 RPM (Normal cycle i s revolut ion)Cams (11 or 12 cams)Switch assemblies var ies with games)

Purposes:

CAMS123456789101112

Program sequencePuls ingTiming

Index cam also car ry -over for motor run5 pulse cam for scor ing , r e s e t t i ng , e tc .1 pulse , same as 1s t of 2 cam pulses1 pulse , same as 2nd of 2 cam pulses1 pulse , same as 3rd o f 2 cam pulses1 pulse , same as 4th of 2 cam pulses1 pulse , same as 5th of 2 cam pulses1 pulse , a f t e r 5th pulse of 2 cam pulses3 pulse , same as 3rd ,4 th ,5 th of 2 cam pulses1 pulse , a f t e r 8 cam pulse6 pulse , in between pulses o f 2 cam pulsesAlternat ing i f used) - cam switch i s closedon :2 revolu t ion and open on othe r .

-14-

:2 CYCLEdwell5 lobes)1 lobe1 lobe1 lobe )1 lobe )1 lobe1 lobe3 lobes1 lobe6 lobes


17/49

REL YS G-TYPE)

PURPOSE When e l e c t r i c a l cur ren t f lows t h ru the c o i l a magnetic f i e l dr e su l t s . This f i e ld a t t r a c t s the armature f l ap and mechanical lyac tua tes the swi tches . Thus, by a s ing le ac t ion of complet ing thec i r c u i t to the re l ay co i l , any number of ind iv idua l c i r cu i t s can becon t ro l l ed t h ru the assoc ia ted r e l a y swi tches .A s ing le pulse to the r e l a y c o i l in conjunct ion wi th a lock in switchcan hold in the c i r cu i t s un t i l a ce r t a in func t ion i s completed. Thisi s usefu l in cases of mult ip le scor ing , s tepping up o r r e s e t t i ng aunit or where a de f in i t e sequence of opera t ion i s necessary.

DJUSTMENTS The gap and fol low t h ru spec i f i ca t ions should be used asa gui ld , and some judgement must be exerc i sed to insure t ha t t he adj us t ed gap w i l l perform proper ly under the use condi t ions .Al l switch adjus tment must or ig ina te with the p la s t i c switch ac tua torin de-energized pos i t ion . Afte r swi tch adjus tments are completed theac tua tor should au tomat i ca l l y re turn to t h i s pos i t i on . All swi tch adjustments must be done with a s t rok ing ac t ion of the adjust ing too l anno sharp bend a t the swi tch spacers . Before adjust ing switches, . makesure the t i p of the long blades a re centered in the s l o t s o f the swi tcac tua tor , otherwise they w i l l hamper the movement of the switch ac tuaTighten down the screws t ha t hold the switch assembly. This i s suggebecause the p la s t i c spacers in the switch s tacks w i l l occasional ly sh rby drying out , causing a poor adjus tment . When switches are proper lyadjus ted , there should be about 1/32 fol low thru , except in case oflock in switches which should be s l i gh t ly more. This fol low th ruac t ion provides a wiping motion between con tac t s , keeping them c lean .NORM LLY OPEN SWITCHES Hold switch ac tua to r in top pos i t i on . Adjus tlong blade so the t i p r e s t s l i gh t l y (10 grams pressure) on upper s ideof s l o t in p l a s t i c swi tch ac tua tor . Adjus t sho r t blades to 1/32 c l e aance between contac t poin t s , except on lock in swi tch 1/64 c lea ranceNORM LLY CLOSED SWITCHES Hold swi tch ac tua to r in top pos i t ion whileadjust ing long blade so the t i p r e s t s l i gh t l y (10 grams pressure) onupper s ide of s l o t in p l a s t i c switch ac tua tor . It may be necessaryto ad jus t sho r t blade away from the long blade . Hold switch ac tua torin down pos i t ion whi le ad jus t ing shor t blades to 1/32 clearance between contact poin t s .The armature spr ing should have enough t ens ion to br ing the armatureup agains t the armature s top when the re l ay i s not energized. Seet h a t pressure from poor ly adJus ted swi tches i s not a f fec t ing t hearmature before a t tempt ing adjus tment on the spr ing .I f a re l ay cha t t e r s o r hums , check to see t ha t swi tches , loca tedon it are not out of adjustment and causing too much upward t ens ionon the armature. In some cases the t rouble can be due to fore ignmat ter on top of the r e l ay c o i l core . This can be. removed with asmal l f i l e .

-1 5 -


18/49

'G' TYPE REL YS

COIL DESIGN TIONSG-31-2000

RM TURE

SPRING RET INERBR CKET

SWITCHCTU TOR

INDIC TES N U ~ ~ R OF TURNS

INDIC TES SIZE OF M GNET WIRE

INDIC TES SIZE OF COIL

COILP RT NUMBER

M RKED ON WR PPER

16


19/49

MOTORIZED TRIP REL Y B NK

The motorized t r i p re l ay bank assembly was designed and pa tented byBALLY pr imar i ly to e l imina te the 115 vo l t s from the opera t ing c i r c u i t s of a game and to insure a p o s i t i v e r e s e t of a l l t r i p re l ays .A t r i p r e lay bank cons i s t s o f a number o f re l ays on a common f rame,a main r e lay mounting p l a t e , p l a s t i c re se t cams on a common sh a f tand a re se t motor. The t r i p re lays are r e se t when r e s e t cams areopera ted by a 50 vo l t motor usua l ly 35 R.P.M. Each cam r a i s e s anindiv idual re lay l a tch assembly momentari ly, al lowing the armatureto hold it in locked pos i t ion u n t i l the r espec t ive re l ay co i l i senergized.A t r i p r e lay c o i l , when energ ized w i l l magnet ize i t s armature thust r i pp ing ( re leas ing) the l a t ch assembly to ac tua te i t s swi tches .The switches remain ac tua ted u n t i l re l ay i s r e s e t , e l imina t ing thenecess i ty of a lock- in c i r c u i t for each r e l a y . When a clu tch t r i pre l ay o r r e l a ys ' a r e inc luded in the assembly, it i s poss ib le tor e se t groups of re lays independently from other groups . Each groupo f re l ays has i t s own index cam to insure a complete r e se t cyc le .The main r e lay mounting p la t e may be removed from the t r i p bankassembly frame by removing the thumb screws from the two end p l a t e so f the assembly then r a i s e the back of the re l ay mounting bracke twhich swivels on the main sh a f t and li t of f .1 . To replace a t r i p re l ay c o i l , l a t ch assembly or armature:

a) Remove the main re l ay mounting p la t e as descr ibed above).b) Turn main mounting p la t e upside down. Note t ha t co i l s aremounted in group co i l bracke ts 2 or 3 to a group.c) To remove a co i l , l a t ch assembly o r armature , loosen screws to

a l l coi l s in a group c o i l bracket . Remove nuts and lock washert ha t secure the bracke t to main mounting p la t e .d) Unsolder bare jumper wire on a l l c o i l s in the bracke t .e) Hold down l a tch assembly and remove the c o i l bracke t from themain mounting p la t e .f) To replace armature or l a tch assembly, f i r s t remove the spr ing .g) To replace the cen te r c o i l of a 3 co i l group, e i the r remove an

outs ide co i l f i r s t , or remove cen te r armature spr ing and arma-tu re .

h) When replac ing the bracke t -co i l -a rma ture group back on mainmounting pla te , hold down l a tch assemblies and a lso hold arma-tures aga ins t the co i l s . When assembly i s completed, solderbare jumper wires to co i l s .

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20/49


21/49

l

2 . To rep lace motor o r cams:(a) Remove main re l ay mounting p l a t e .(b) Remove screws from long rods t h a t secure end p la te and motor .(c) Pul l end p la t e and motor.(d) Remove 4 motor mounting screws. NOT When i n s t a l l i ng a newmotor, be sure r o l l pin on new motor sh a f t i s in place .(e) To remove cams when no c lu tch i s on the assembly, p u l l t he en t icam shaf t assembly from o ther end p l a t e . Remove E r e t a ine rr ing from end o f shaf t and cams w i l l s l i de o f f . Normally a l lcams are i de n t i c a l .(f) To remove cams when a c lu tch i s included on the assembly, remocams away from cente r cam, do not loosen s e t screws on cen t e r cunless necessary . To remove cams on motor s ide o f cen te r cam,dr ive ou t r o l l pin in s ha f t . To remove a c lu t ch assembly, dr ivout r o l l pin holding c lu t ch assembly.

SWITCH ADJUSTMENTThe swi tches should be adjus ted so t h a t they perform the des i red funt i on in both on and o f f cond i t ions . Some judgement should be exe rc ifo r you want the switch to 'perform prope r ly not have a uniform gaps e t t i ng .Before adjus tments a re made, make c e r t a in t ha t the screws holding t hswitch s tacks a re down t i g h t . The p l a s t i c spacers in the swi tch s t aw i l l occas iona l ly sh r ink by drying ou t . This causes a poor adjus tmeThe switches should be adjus ted wi th a minimum 1/16 gap and a t l e a s1/32 over t r a ve l . Do not k ink o r bend sharp ly as t h i s w i l l cause t hblade to fa t igue and l ose i t s a b i l i t y to spr ing back. Eventual ly tmay f rac tu re and break. Adjust blades wi th a sweeping, bowing motiowith a switch blade ad jus t ing t oo l .

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22/49

INTERLOCK RELAY

Funct iona l ly t h i s type o f re l ay i s the same as othe r r e lays , d i f f e r ing only in t ha t it i s locked in ' ' mechanica l ly a l though the c o i li s de-energ ized .It cons i s t s o f a regu la r r e l ay plus an add i t iona l c o i l and armaturep l a t e , place in a p o s i t i o n so t ha t when one c o i l i s momentarilyenerg ized it w i l l p u l l i t s armature down and a l low the othe r armatureto s l ide over it Thus holding it mechanica l ly in t ha t pos i t ion u n t i lthe other c o i l i s momentarily energ ized and the process i s repea ted inreve rse .The c o i l and armature assembly contain ing the swi tch s t ack i s ca l ledthe l a t ch c o i l , sometimes r e fe r red to as the rese t c o i l . Thec o i l with only the armature i s ca l l ed the t r i p c o i l .

ADJUSTMENTHold the l a t ch armature down d i r e c t ly over the cente r of the l a tchco i l , the re should be a .010 gap between the t r i p c o i l armature andthe nylon piece .Hold the t r i p c o i l armature down, t he re should be about 010 betweent he two armatures .Adjustment of the gap are made by loosening the screws hold ing the t r i pc o i l in place . Be sure to t igh ten down the screws a f t e r adjustment i scompleted.The swi tch adjustments are the same as t ha t fo r a regu la r r e l ay .

INTERLOCKRELAYADJUSTMENTSCREWS

LATCHCOIL

- 2 0 -

TRIP COIL ARMATURE

o oOADJUSTMENTPOINT


23/49

STEP-UP UNIT

Other Names: Stepper Unit , Rotary Switching Unit , Step Swi tcherUnit , e t c .Types o f Uni ts : 1 .3 . Escapement Reset , Continuous Rotat ion(s ingle s t ep r ese t ) . 2. Tota l Reset

Continuous Rotat ion Units : This u n i t has only one so leno id whichdr ives the un i t in only one d i rec t ion . The score drum un i t s and00-90 un i t s are examples of t h i s type o f un i t .Tota l Reset Uni ts : This u n i t has two so leno ids one t o d r ive (s tepup) the u n i t and ano ther to r e s e t t he u n i t to index (zero) p o s i t i o n .The b a l l count un i t , playe r up un i t are examples o f t h i s type o f un i tEscapement Reset Units : This u n i t has two so leno ids one to dr ive(s tep-up) the u n i t and ano ther to r e s e t t he u n i t one s t ep (pos i t ion)a t a t ime. The c re d i t u n i t and some bonus un i t s , espec ia l ly thoset h a t score over 500 or 5000 poin t s , in increments of 10,000 or 1000,a re t h i s type o f un i t .Purpose of Step-Up Uni ts : These u n i t s serve as a mixer sequence u n i t(00-90) , counter u n i t (score drum u n i t ) , memory sequence u n i t (bonusu n i t s ) , a l t e rn a t o r u n i t ( two-coin u n i t ) , sequence u n i t (p layer up unie t c .They are switching un i t s in t ha t they make o r break c i r c u i t s in a def i n i t e pa t t e rn . Actual swi tching i s done by wiper assembly making cot a c t with wired r i ve t s o r pr in ted c i r c u i t s on the b ak e l i t e d i sc .Operat ion o f Units : Step-up (drive) solenoid; when the solenoid i senergized, the d r ive pawl engages the next t oo th on the ra t che t , re l e a s e power, and the dr ive spr ing advances the r a t c h e t one s t ep . Thewiper assembly i s a t tached to the r a t c h e t so the wiper moves from oner i v e t to the next . The index pawl o r r e s e t pawl holds the ra t che t ina pos i t ion u n t i l the dr ive pawl moves t he r a t c h e t to the next p o s i t i o nTota l Reset Unit : Step-up opera t ion i s the same as above. This u n i thas a r e se t so leno id and plunger which when energ ized opera tes the res e t ( index) pawl to dis -engage the dr ive pawl and mechanical ly locksi t s e l f and dr ive pawl away from the r a t c he t . The . tors ion spr ing (nonon cont inuous ro ta t ion un i t s ) i s a t tached to the r a t ch e t to r e tu rn ther a t c h e t back to index (zero) pos i t ion .Escapement Reset Uni t : Step-up opera t ion i s the same as above. Thisu n i t has a r e s e t solenoid and plunger as on t he t o t a l r e se t u n i t . Thmain di f fe rence between the t o t a l r e s e t u n i t and escapement r e s e t un ii s t h a t the escapement r e s e t u n i t has an escapement pawl and spr ing ,which a l lows the ra t che t to r e se t only one pos i t ion each t ime the re s e t solenoid i s energ ized . The escapement pawl does not lock in d i s engaged pos i t ion . To t o t a l l y r e s e t t h i s u n i t , t i s necessary to pulsthe r e s e t solenoid u n t i l the un i t i s in index p o s i t i o n .Wiper Assemblies : Type o f wipers 1 . Grounded to f rame. 2. Copped i s c feed. 3 . Insu la t ed . 4 . Ex terna l wire feed.

L1.-

-21-


24/49

ESC PEMENTP WL

RESET OIL

STEPUPRM

STEP UP UNIT

Q)

p

(1)

ZERO SWITC

}

STEPUPOIL

O )


25/49

Grounded to Frame Wipers: These wiper blades make contac t withmetal spacers on the wiper assembly, which in t u rn are grounded tothe un i t frame through wiper f inger . The frame i s fed by wireso ldered to so lde r lug which i s screwed to the frame.Copper Disc Feed Wipers: The feed to t he se wipers i s copper d i scon t he wiper assembly, which i s fed by wiper blade t ha t i s r ive tedto t he bake l i t e d isc and wired to so lder lug on t he d i sc . Thesewipers are in su la ted from the metal spacers by bake l i t e spacers .Insula ted Wipers: These wipers are g n r ~ l l y pa i red and they areinsu la ted from other blades by b a k e l i t e spacers of the wiper assembly.One wiper i s fed by r i ve t , complet ing c i r c u i t to another wiper andr i v e t .Externa l wire feed wipers : This type of wiper can only be used onthe re se t type of un i t . The feed to these wipers i s spr ing sh ie ldedcable mounted on the assembly. One end o f each wire i s so ldered toso lde r lug which makes contac t wi th the wiper blade,. and the o therend i s soldered to solder lug mounted on the d isc , or an a ux i l l i a rybake l i t e s t r i p .Switches: End-of-Stroke Switch: This swi tch i s ac tua ted by the dr ivearm about the t ime the dr ive pawl has engaged the next tooth of thera tche t .Zero Switch: Used only on r e s e t t i ng un i t s . This switch i s ac tua tedby pin on the r a t c h e t when the un i t i s in index pos i t ion . This swi tshould be adjus ted so t ha t t does not r e s t r i c t the movement of thera tche t in any way.Limi t Switch: Used only on r e s e t t i ng u n i t s . This switch i s ac tua teby a pin or pos t on the ra t che t when t he u n i t has advanced to i t s maxi u posi t ion . This switch should be ad jus t ed so t ha t t does not r e s t r i c t the movement of the r a t c h e t as the un i t advances in to the l a s tpos i t ion .

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26/49

CREDIT OR RELAY UNIT

The c re d i t un i t i s an escapement r e s e t s tep-up u n i t with a numberedr ee l . The ree l ind ica tes the number of c re d i t s remaining.The c re d i t un i t i s advanced by coins pass ing th ru coin chu tes andwhen c re d i t s are earned during play o f game (wherever not proh ib i tedby law), twenty-f ive c re d i t s i s the maximum l im i t of c re d i t s a va i l ab le adjus table for l e s se r amounts .The c re d i t un i t i s r e s e t one c r e d i t a t a t ime when the c re d i t but toni s used to s e t up a game o r inc rease the number o f players e l ig ib l eto play wi th in l imi t a t ions of the game.This un i t has a zero switch which opens when no c re d i t s remain.When t h i s switch i s open t makes the c re d i t but ton switch in ope ra t ive . The u n i t has a l im i t swi tch which opens when maximumc re d i t s are reg i s t e red . This swi tch 0pens the c i r c u i t to the s t ep up so leno id . This u n i t a l so has an end-of-s t roke swi tch which oper a tes the sounder (knocker) to ind ica te audibly when a c re d i t has beenadded.

END OFSWITCH

RESETSOLENOID

-24-

ZERO SWITCH

STEPUPSOLENOID


27/49

SCORE DRUM UNIT

To add and accumulate the p layers score , a n u ~ e r of drum uni t s areused. These are 10 pos i t i on , cont inuous ro ta t ion , type of s t ep upuni t s , with an at tached p la s t i c drum numbered.from 0 to 9. Somedrum uni t s also have a 10 pos i t i on bake l i t e d isc and wiper assembly,for addi t i ona l c i r c u i t appl i ca t ions . A swi tch t h a t opens a t thezero pos i t i on al lows the un i t to be cleared to zero or index pos i t ion , for the s t a r t of a new game. Another swi tch t h a t opens a tzero al lows the r e se t re l ay or s t a r t re lay) to remain energized toguarantee t ha t a l l drum uni t s clear to zero .During the course o f the play of the game, a nin th pos i t i on make swi tci s used so t ha t t he u n i t ' s riext pulse w i l l a l so advance the ad jo in -ing drum un i t i for example score o f 19 to a score of 20. An end ofs t roke break swi tch i s used to break the lock- in c i r c u i t of t he po in tre l ay . The lock - in c i r c u i t i s used to insure a proper advance of thedrum un i t .

NUMBERED DRUM\BAKELITE DISC

END OF STROKE ___._BREAK SWITCH

SCORE DRUM UNIT-25-

BREAK S

9TH POSITIOM KE SW.


28/49

ROLL OVER WIRERol l -over wire forms serve as l ever s t ha t when ac tua ted by a ba l l onthe p lay f i e ld operate switches mounted beneath the p la y f i e ld . Thewire forms come in var ious s izes and shapes . They are a l so des igna tedas r i gh t or l e f t ro l l -ove r wire forms.

DJUSTMENTF i r s t be sure t ha t the wire form i s cente red in the s l o t in the p layf i e l d . Second, the long blade of the switch should be adjus ted tohold the wire form snug to the bot tom o f the playf ie ld . Too mucht ens ion wi l l hang up the ba l l in p lay .Normally open switches: Adjust shor t blade so there i s 1/16 gapbetween con tac t s . Then place b a l l on h ighes t po in t of wire form, the reshould be approximately 1/32 fo l low th ru a f t e r contac ts a re c losed .With cabine t l eve led p l a y f i e l d should have a ~ pi tch . Place ba l lin the r e s t pos i t ion so t ha t the b a l l comes in contac t with wire formand p lay f i e ld a t the same t ime. Release ba l l i f switch pressure i scor rec t b a l l wi l l pass over wire form causing the switch to score .Under no condi t ion should the b a l l s top on the wire form, s ince t h i smay cause a c o i l to burn out .Normally c losed switches: The shor t blade should be adjus ted so t ha tt he re i s a gap of about 1/64 between contac ts when b a l l i s on highes tp o in t of wire form.To prevent switch v ib ra t ion a spec ia l blade i s used. t should beadjus ted so it i s j u s t bare ly in con tac t with the shor t blade to ac tas a damper. For an add i t iona l t e s t the p lay f i e ld may be j a r red withthe hand to check fo r switch vibra t ion .

T RGET SWITCHESTarge t switches are mounted on the p lay f i e ld and are ac tua ted by theb a l l h i t t i ng the p l as t i c t a rge t . They may have two (2) or th ree (3)blades

DJUSTMENTThe f ron t blade ( the one in which the p l as t i c t a rge t i s mounted) , shouldbe formed so it i s touching the end o f the s l o t in the p la y f i e ld . Doingt h i s w i l l dampen f ron t blade vibra t ions . The spacing between contac tsshould be 1/16 and 1/32 fo l low t h ru . Do .not kink or bend sharply ast h i s w i l l cause the blade to fa t igue and break. Adjust blades with asweeping, bowing motion, with a swi tch adjus t ing t oo l .

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29/49

ROLL OVER UTTON ( s t a r type)This ro l l -o v e r but ton assembly co n s i s t s o f a p l a s t i c i n s e r t t h a t ac t sas a se a t fo r the r o l l - o v e r but ton and its s tem. As the ac tua tedswi tch b lade i s d i r e c t ly on t h i s s tem, t he re i s no l everage advantageas in t he ro l l -o v e r wire form type o f ac tu a to r . Therefore , a ca r e f u lswitch adjustment i s necessary .

ADJUSTMENTThe ac tua ted blade i s ad j u s t ed so as to apply a s l i g h t p res s u re on thbut ton . The s h o r t blade i s ad j u s t ed fo r a gap o f approximate ly 1/32and a 1/32 fo l low th ru .The a n t i -v i b ra t i o n blade should be j u s t ba re ly touching the s h o r t cont a c t blade .With the p l a y f i e l d secured in a normal opera t ing pos i t ion , it i s adv isab le to s t r i k e the p l a y f i e l d , to check fo r v ib r a t i o n of the swi tcht should a l so be t e s t e d by plac ing a b a l l a t t he top edge of the but

to check t h a t the b a l l does not hang up.

ROLL OVER UTTON (round but ton type)This ro l l -o v e r but ton assembly cons i s t s o f a meta l bushing screwed int he bot tom o f the p layf i e ld , and a round whi te p l a s t i c but ton with astem. As t he ac tua ted swi tch b lade i s d i r e c t l y on t h i s s tem, t he re ino l everage advantage as in the ro l l -o v e r wire form type o f ac tua to r .Therefore , a ca r e f u l swi tch adjustment i s necessary .

ADJUSTMENTUsing a heavy swi tch b rack e t ad jus t ing t o o l o r long nose p l i e r s , bendswi tch s t o p bracke t so t ha t the bu t ton i s f lush with the top o f thep l a y f i e l d .The ac tua t ing blade i s ad jus ted so as to apply a s l i g h t pre ssure on tbut ton . The shor t contac t blade i s ad j u s t ed for a gap o f approximate1/32 and a fo l low t h ru of 1 /32 . The a n t i -v i b ra t i o n blade should bej u s t b a re l y touching the s h o r t con tac t b l ad e .With the p l a y f i e l d secured in a normal opera t ing pos i t ion , it i s ad vab le to s t r i k e the p lay f i e ld , t o check fo r v ib r a t i o n o f t h e swi tch .t should a l s o be t e s t e d by plac ing a b a l l a t the top edge o f the butto check t h a t the b a l l does not hang up o r f a i l to score .

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30/49

SLING-SHOTThe s l ing -sho t i s a so leno id opera ted kicke r t ha t i s usua l ly loca tednear the bot tom o f the p la y f i e ld . The so leno id i s energ ized by theb a l l h i t t i n g the rubber r ing which in t u r n ac tua tes the swi tch .

DJUSTMENTWhen s l ing- sho t kicker i s a t r e s t ac tua t ing blade of switch shouldj u s t ba re ly touch the rubber r ing with 1/16 gap between switch po in t s .

MOUNTING BR CKET .

RUBBER REBOUND SWITCH

~ ~ K I C K E R RM

PLUNGERLINK SSEMBLY

Adjus tment : Adjust the switch t he same as for the s l ing -sho t .

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31/49

i

MUSHROOM BUMPERMushroom bumpers c o n s i s t of a p l a s t i c cap with a stem, which d i r e c t l yac tua te s the swi tch . The spr ing loaded cap i s housed in a pos t , whici s fas tened to the p l a y f i e l d . When a b a l l comes i n con tac t with thecap, t i s r a i sed up, al lowing the swi tch t o c lo s e .

ADJUSTMENTThe shor t contac t blade i s ad jus t ed fo r a gap of 1/32 11 when the p l a s tcap i s in the normal p o s i t i o n . (push cap down to make sure t i s inthe normal p o s i t i o n .L i f t the p l a s t i c cap by hand, and ad ju s t the long con tac t blade fo r agood so l id con tac t with the shor t blade .Be sure t ha t the p l a s t i c cap r e tu rns to i t s normal pos i t ion .With the p layf i e ld secured in the normal opera t ing pos i t ion , t i sadv isab le to s t r i k e the p l a y f i e l d , to check fo r v ib r a t i o n o f t he swi t

BUMPERT RGETbumper t a rg e t i s a p l a s t i c assembly t h a t w i l l cause a b a l l to re bound and r e g i s t e r a score . When a b a l l r o l l s on the p l as t i c d i sc ,the a t t ached s tem ac tua te s a cup-shaped swi tch benea th the p l a y f i e l d .

ADJUSTMENTMake sure t h a t the s tem i s i n the cen te r of the cup of the swi tch .The bumper con tac t swi tch should be adjus ted with a gap o f 1/32 11 anda fo l low- th ru o f 1/32 11

THUMPER BUMPER AC type)thumper bumper i s an i l lumina ted p l a s t i c assembly with a meta l andp l a s t i c di sc around i t s body. When a b a l l r o l l s on t he p l a s t i c d isc , the a t t ached s tem ac tua te s a cup-shaped swi tch beneath the p l a y f i e l d .This swi tch energ izes a thumper bumper r e lay which i s held energ izedby ~ t own l ock- in swi tch and the normal ly closed thumper bumper so

leno id end-of-s t roke Witch. Another swi tch on the thumper bumperr e lay , when energ ized w i l l energ ize the thumper bumper so leno id whichin t u rn p u l l s the meta l r ing down, kick ing the b a l l away from thethumper bumper.The purpose o f the thumper bumper r e l a y i s to insure a f u l l s t roke o fthe thumper bumper solenoid , . and a t h i r d swi tch on the r e lay a c t i v a t ethe scor ing .

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ADJUSTMENTThe thumper bumper so leno id end-of -s t roke should be ad jus ted to havea minimum of 1/32 fo l low t h r u when plunger i s pul l ed down. In anycase , t h e swi tch must open when the plunger i s pul l ed a l l the waydown, othe rwise the thumper bumper r e l ay swi tch w i l l keep the thumpebumper so leno id energ ized .The bumper co n t ac t swi tch should be ad jus ted with a gap o f 1/32 anda fol low t h ru of 1/32 . To i nsu re b es t bumper ac t ion , the stem a t t a ced to the p l a s t i c d i s c should be cen te red in the cup o f the swi tch .This a l s o insures t h a t the s tem w i l l not lock the swi tch c losed . Loto rque i ns t rument grease should always be in the cup o f the swi tch .(ava i l ab le a t your Bal ly d i s t r i b u t o r s , however , never use v as e l i n e ) .This w i l l p rev en t ex ces s iv e wear o f s tem and cup.

THUMPER BUMPER DC type)The DC (d i r ec t cur ren t ) type thumper bumper i s very s imi l a r t o theAC (a l t e rna t ing cur ren t ) type , excep t t h a t t i s opera ted d i r e c t l yby ts own con tac t s , t h e r e f o r e , no r e l ay i s used.

METAL FLANGE ~ -WITH STUDS

CAP

PLASTIC SKIRT ;WITH STEM

r1

SOLENOIDSWITCHSCORINGSWITCH

THUMPER BUMPER~ - . - - - - - - S O L E N O I D

ADJUSTMENT THUMPER UMPER D.C. TYPEThe bumper con tac t swi tch should be ad jus ted wi th a gap o f 1/32 anda fo l low t h ru o f 1/32 .The other swi tch i s the scor ing switch, which should have a gap o f 1/when the bumper i s in the normal pos i t ion .

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DJUSTMENT (continued)To insure bes t bumper ac t ion , the stem a t tached to the p l a s t i c d iscshould be cente red in the cup of the swi tch . This also insures t ha tthe s tem wi l l not lock the switch c losed. The DC type thumper bumperdoes not need l ub r i ca t ion in the cup o f the swi tch , because the cupi s made of s e l f l ub r i ca t ing p l a s t i c .

FLIPPERSA f l ipper i s an e lec t r i ca l ly dr iven ba t - type device . A push but tonon each s ide o f the cab ine t al lows the player to ba t the b a l l withan element of s k i l l .The f l ipper solenoid i s a double wound co i l . The p u l l - i n winding i sa s t rong winding, cons t ruc ted o f a heavy gauge wire , to insure a f a s tpu l l - i n . The hold- in winding i s a weaker winding, cons t ruc ted of al j gh t e r gauge wire . When the plunger i s pu l l ed - in , a so leno id end-of - s t roke switch i s opened to cause the c i r c u i t to go th ru both wind-ings , thus preven t ing a so leno id burn out when the f l ippe r but ton i she ld i n .DJUSTMENT

The so leno id end-of-s t roke switch should be ad jus t ed so t ha t when theplunger i s completely depressed manually, the shor t blade should beadjus ted for a gap o f 3/32 and a fo l low th ru o f 1/32 .The only l ub r i ca t ion requi red on the f l ipper un i t i s the l inkage.DO NOT LUBRICATE PLUNGER

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CLOSE FLIPPER o r ZIPPER FLIPPER ASSEMBLYThe c lose f l ipper assembly moves the f l i p p e r assembl ies toge ther tos top the b a l l from going i n t o the outho le , t h e reb y al lowing thep l ay e r added playing t ime. Bas ica l ly t h i s assembly cons i s t s o f aso leno id to move the f l i p p e r assemblies t oge the r , a swi tch assemblyto l ock- in - the c i r c u i t u n t i l the so leno id has mechanica l ly l a t chedthe assembly in the c losed pos i t ion and a r e lease c o i l to unlatchthe spr ing loaded l inkage to move the f l i p p e r s back to t he i r normalp o s i t i o n s .ADJUSTMENTThe so leno id end-of -s t roke switch should be ad jus ted so when theplunger i s complete ly depressed manual ly , the s h o r t blade should bead jus ted fo r a gap o f 3/32 and a fo l low t h r u of 1 /32 . The onlyl ub r i ca t ion requ i red on the f l i p p e r u n i t i s the l inkage .DO NOT LUBRICATE PLUNGER

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I

I

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3 BALLS IN PL Y G MES3 Bal l s - in -p lay games have proved very popular . t involves b a l l o rba l l s held capt ive on the p l a y f i e l d u n t i l another b a l l performs ace r t a in funct ion to r e l ea s e the cap t ive b a l l or ba l l s thus it i sposs ib l e to have 3 b a l l s in motion on the p l a y f i e l d a t one t ime.A game of t h i s type r equ i res some s p ec i a l equipment and consequent lyspec ia l c i r c u i t s to opera te them. F i r s t o f a l l , the game must beable to es tab l i sh the pos i t ion or loca t ion o f each ba l l . When a b a l lbecomes cap t ive and the o ther two ba l l s are out of play, a b a l l mustbe re leased to the shoote r a l l ey so t ha t the same player may con t inueto play . The game must be able to determine when a play i s completedso t ha t the next playe r may play , o r i n case the re i s only one p layer ,the game must advance the b a l l count un i t .B LL TROUGH SSEMBLY FOR 3 BALL G FillThis assembly has th ree t rough swi tches to ind ica te when t he re are 3ba l l s in the t rough. When the re are 3 ba l l s in the t rough, the b a l lre l ea se re l ay i s energ ized which in t u rn energ izes the ba l l re l easeso leno id to r e lease one ba l l , except when the game i s over. Whent he re i s a cap t ive b a l l on the p layf i e ld , the capt ive b a l l swi tchtakes the p lace o f the 3rd t rough swi tch , and when t he re i s a 2nd capt i ve ba l l on the p l a y f i e l d , the 2nd capt ive b a l l switch takes theplace o f the 2nd t rough swi tch . The b a l l t rough switches must be ad-jus ted so t ha t the b a l l ro l l i ng down the t rough wi l l not make twoswitches a t one t ime. The swi tches must not be ad jus ted so t i gh t asto hold back a ba l l , no mat te r how slowly the b a l l r o l l s .Spring loaded b a l l r e t a ine r pawls 3) on the s ide o f the b a l l t roughprevents a f a s t b a l l from bouncing back in the t rough, causing t hegame to mal-funct ion, such as f a i l i ng to de l ive r a b a l l o r de l ive r ingan extra ba l l .B LL RELEASE SSEMBLYThis assembly i s used only in a 3 ba l l game and opera tes only when t he3rd b a l l i s out o f p l ay , a t which t ime it r e leases a ba l l from t he b at rough except on game over . The f i r s t b a l l in the t rough should s topins ide notch o f r e l ea s e cam. The cam i s pos i t ioned by s e t screws.After adjustment , push in plunger manually, the b a l l should kick outbefore the p lunger bot toms. Afte r adjustment , the s e t screws must bescrewed in t i gh t .

CAPTIVE BALL ESC PEMENT SSEMBLYThe cap t ive ba l l escapement assembly was designed and paten ted by Ba t i s mounted under the p l a y f i e l d with escapement pawls extended th ruthe p layf i e ld in such a manner t ha t the b a l l in the cap t ive b a l l a l l e yw i l l advance one p o s i t i o n a t a t ime. The escapement pawls are hingedon a s ing le bar which i s a t tached to a plunger . A solenoid when ene r gized p u l l s the plunger al lowing the capt ive ba l l to advance to thenex t pos i t ion and even tua l ly to leave the capt ive a l l ey .

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BASIC CIRCUITS

ROLL OVER SW.or T RGET REL Y~ ~ ~ ~

EX MPLE 1This i s the very s imples t method of energ iz ing a r e lay . The re l ayi s pul led in only as long as the switch i s c losed .

. __ __ 1 t

~ ~ ~ _______________________________________I

EX MPLE 2

REL Y

The opera t ion o f example 2 i s i d e n t i c a l with example 1 except thate i t h e r swi tch w i l l p u l l in the r e l ay .

LOCK-INREL Y

~ ~ ~ ~ ~ ~ ~ ~REL Y

The only di f fe rence with example 3 from 2 i s t h a t the hold re l ayswitch must be c losed to complete the c i r c u i t .

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EX MPLE 4

LOCK INREL Y

LOCK INREL Y

This i s the bas ic form of a l ock i n o r hold re l ay . Once the re l ayi s energized, the only way to de energ ize t would be to removethe vol tage source .

SCORE MOTOR

EX MPLE 5

LOCK INREL Y

L O K ~ I NREL Y

This lock in c i r c u i t w i l l drop out when ever the score motor t u rns .The score motor switch i s usual ly a 8 or 10 cam swi tch .

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BRE K SW. FROMNOTHER REL Y

SCORE MOTOR

EX MPLE 6

LOCK-INREL Y

LOCK INREL Y

In t h i s c i r c u i t the r e lay w i l l not drop out with each score motorindex The drop out can be delayed because o f the o t h e r swi tch inp a r a l l e l with the score motor swi tch The break swi tch from theothe r r e l a y must open before and remain open u n t i l a f t e r the scoremotor impulse .

STEP UP UNITE.o.s.

EX MPLE 7

LOCK-INREL Y

LOCK INREL Y

The re l ay i s locked in through a s t ep up u n i t end o f s t roke swi tchThe s t ep up u n i t must advance fo r the r e lay to drop out A t y p i ca lexample o f t h i s c i r c u i t i s in the p o i n t r e l a y (10,100,1000) lock inc i r c u i t s

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IL

455FLASHER BULB

EXAMPLE 8

DELAYRELAY

DELAYRELAY

The delay r e lay c i r c u i t used in Bal l y games are ac tua ted by theslam switches loca ted on the f r o n t door cab ine t l e f t s ide and onthe mounting or bot tom board .Wnen the game i s abused, the weighted swi tches p u l l in the de layr e lay . The r e lay i s locked in by the f i l ament o f the f l a she r lamp.As the f i l ament o f the lamp hea ts up, the i n t e rna l bimeta l contac tsopen the lamp c i r c u i t causing the r e l ay t o drop out .

SCORE RESETRELAY

POINT (10-100-RELAY 1000)

SCORE DRUMUNIT ZERO SW

8 SCM

COINRELAY

EXAMPLE 9

SCORE DRUMUNIT ZERO SW

RESETRELAY 2 SCM

SCORE DRUMUNIT STEP UP

SOLENOID

SCORERESET RELAY

RESETRELAY

When the coin r e lay swi tch i s c losed t he r e s e t r e lay i s pul l ed ins t a r t i ng the score motor . The r e s e t r e l ay w i l l s t a y locked in u n t i la l l the score drum un i t s advance to zero and when 8 score motor camswitch i s ac tua ted . As long as the r e s e t re l ay i s energ ized thescore r e se t r e lay wi l l pulse th ru 2 score motor cam.During the game r e se t t ime the score drum u n i t s w i l l advance u n t i l thescore drum un i t s zero swi tch opens .

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INTRODU TION T SERVI ING

More damage can be done by unnecessa ry ad jus tments and probing beforeirst consider ing what could have caused the t roub le . Most opera t ionsare more o r l e s s s tandard on a l l games. The sequence of opera t ionsare a l so more o r l e s s s tandard .

(1) S t a r t of a game:(a) At s t a r t of a game, the co in s ta r t ) r e lay must f i r s t beenerg ized .(b) Funct ions of the co in r e lay :

Operates the score motorEnergizes the r e s e t r e lay , which i n tu rn causes the scorer e se t re lay s ) to pulse th ru the 2 and /or 11 score motorcam swi tches to r e s e t t he score drum un i t s .Resets the b a l l count un i t .Resets the c re d i t un i t , i c r e d i t was used to s t a r t the game.Latches the game over r e l ay .On a 4-p layer game, r e se t s the player up u n i t and the coinun i t .On a 2-p layer game, l a t ches the 2nd co in r e lay .Operates the r e s e t motor, i the re i s a t r i p re l ay bank.Energizes the lock r e l ay .May r e s e t fea tu re s un i t s , i any.

(c) Funct ions of the r e s e t r e lay :Will energ ize only a t the s t a r t of a game.The main func t ion of the r e s e t r e lay i s to r e se t the scoredrum u n i t s t h ru the score r e s e t r e l a y s ) .Operates the score motor .n a 4-p layer game, in con junct ion with the co in r e lay r e se t sthe p layer up un i t and con t ro l s the co in u n i t s t ep up or re s e t of the un i t .

On a 2-p layer game, it con t ro l s the l a t ch or t r i p o f the 2ndco in r e lay .While the r e s e t r e lay i s energized, it prevents the fea turesre l ays and scor ing re l ays from ope ra t ing .May r e s e t fea tu re s not r e s e t by the co in r e l ay .

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f

d) There may be o ther f ea tu re re l ays o r un i t s t ha t are spec ia lfea tures o f t ha t pa r t i cu l a r game.2) During the play of a game:

a) Funct ions o f the outho le re l ay :

b)

c)

Operates t he score motorAdvances the b a l l count u n i t a f t e r a b a l l has been playedand no ex t ra b a l l has been earned, except in a 4-player gamet w i l l advance the p layer up un i t u n t i l the l a s t e l i g i b l eplayer has played a t which t ime t wi l l advance the b a l lcount un i t and r e s e t the p layer up un i t .

Resets fea ture un i t s excep t ho ld -over fea tu res .Completes c i r c u i t to opera te the outhole kicker so lenoid .While energ ized w i l l drop out the t lt r e lay on a l l and4 player ~ a m e s a l so ad jus tab le on some one player games.Functions o f the outho le r e l a y on a or 3 b a l l game:The funct ions are the same as above, except t h i s r e lay doesnot advance the b a l l count un i t o r the p layer up u n i t ordrop out the t lt re lay . Ins tead o f these func t ions theouthole re l ay con t ro l s the c i r c u i t to the 2nd o r 3rd b a l lr e lay and the b a l l r e l e a se r e l a y when a l l ba l l s are out ofplay .Functions o f a 2nd or 3rd b a l l r e lay :A 2nd b a l l re l ay i s used on a b a l l game.This r e lay i s energ ized when t he outhole r e lay i s energizedand both ba l l s a re ou t o f p lay .This r e lay when energ ized i nd ica tes the end of the p lay forthe player up on t ha t b a l l .A 3rd b a l l re l ay i s used on a 3 b a l l game.This r e lay i s energ ized when t he outhole r e lay i s energizedand a l l th ree ba l l s are out of p lay .This r e lay when ~ n e r g i z e d i nd ica tes the end o f the p lay fo rthe player up on tha t b a l l .When both the b a l l re l ease re l ay and the 2nd or 3rd b a l l re l ay are energized , they complete the c i r cu i t to advance theplayer up u n i t or advance the b a l l count un i t and r e s e t theplayer up un i t .

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(d) Funct ions o f b a l l r e lease r e lay :This re l ay i s energized when both of the ba l l s are out o fplay in a 2 b a l l game, or when a l l 3 ba l l s are out o f p layon a 3 b a l l game.When the outhole r e l ay and t he 2nd or 3rd b a l l r e l ay areenergized then the outhole re l ay drops out , the b a l l re l ease re l ay i s energ ized .I f the outhole r e lay i s not energized, only the b a l l re l ease re l ay wi l l ope ra t e .Advance the b a l l count un i t or the player up un i t i boththe b a l l r e lease r e lay and t he 2nd or 3rd b a l l r e lay areenerg ized .Operates the score motorEnergizes the b a l l r e lease so leno id t h ru the normal ly open4 score motor cam swi tch .

(e) The b a l l count un i t wi l l advance only when the b a l l indexr e lay i s energized; i the ex t r a b a l l r e lay i s not energized.On some 1-p laye r games, the b a l l count un i t i s advanced a tthe s t a r t of the game and the u n i t i s r e s e t one pos i t ion a ta t ime a t the end of each p lay . The un i t w i l l advance onep o s i t i o n whenever an ex t r a b a l l i s earned up to and including9 ba l l s .to play .When the score glass reads ba l l s t o p l ay , t h e b a l l count un i tr e se t s one pos i t ion a t the end o f each play .When the score glass reads b a l l in play , the b a l l countu n i t advances one pos i t ion a t the end o f ea.ch p lay .On a 4-player game, the b a l l count u n i t does not advance u n t i lthe l a s t e l i g i b l e playe r has played. This i s determined bythe playe r up u n i t in conjunct ion with the co in un i t .

(3) Completion o f a game:(a) The game over r e lay i s t r ipped when the adjus ted number ofba l l s have been played th ru t he b a l l count un i t d i sc . Thegame may be adjus ted for e i t h e r 3 ba l l s per game o r 5 b a l l s

per game not count ing the ex t ra ba l l s scored.(b) The game over r e lay i s t r ipped when the power to the gamei s cu t of f even momentar i ly , th ru the lock re l ay swi tch .(c) n most playe r games, i t he game i s t i l t e d the game overre l ay i s t r ipped . n some player games, it i s ad jus t ab leto t r i p t he game over re l ay o r s top the ac t ion o f the b a l lin p lay .

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(4) Functions of the 2nd and 3rd coin chute re lays:(a) The main funct ion o f these re l ays i s to add c redi t s to thec red i t un i t for coin played, the number of c redi t s i s determined by t he adjustments on the 3rd co in chute a d j u s t ment plug.(b) These re lays do not r e se t the game. To r e s e t the game, it

i s necessa ry to press the c r e d i t but ton on the f ron t door .(c) These re lays should opera te the score motor.I f e i the r r e lay i s energ ized bu t the score motor does notopera te check the fo l lowing:

The score motor t e rmina l plug should be plugged in .The coin chute sw itch wire form should be in top pos i t ion o fcurved s l o t .Turn score motor cam manually, it may be jammed.Check switch adjustment o f r e l a y which i s energized, espec ithe switch with a red-ye l low wire .

TROUBLE-SHOOTING HINTSCoins Rejected:l (a) Visua l ly check the coin l ock-ou t c o i l on the f ront door . Itshould be energized with the armature f l ap touching the c o icore . I f not energ ized ,check fol lowing:

(b) Checks for power supply to the game:Check with a meter or t e s t probe from yel low wire to blackwire for 50 vo l t s .I f no meter or t e s t probe i s ava i l ab le , press l e f t f l ippebut ton . The d isp lay l i t e s should l i t e . Not on l a t e r mo

(c) Causes of power supply f a i l u r e :Power l ine on-offll toggle swi tch may be turned o ff (switch i s loca ted on bot tom o f cab ine t ) .Power l ine fuse may be burned out or not making good contawith fuse holder . Unplug game before checking. ( the fusei s loca ted by the t ransformer , in e a r l y maels ) .Line cord may be broken.Power fa i lure to l i ne cord .50 vo l t fuse may be burned out or not making good contac twith fuse holder . This fuse has red-whi te wire and blackwire .

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(d) Power supply i s okay: and coin lock-out i s not energized,check fo l lowing:Score motor t e rmina l plug should be plugged in .1 score motor cam switch with yel low wire and gray- redwire should be making.

Cable connector from cab ine t to mounting pane l proper lyplugged.Check for 50 vo l t s a t coin lock-out te rminals .The coin may be defec t ive .Coin lockout bar may be jammed or b inding.

2. I f coin lock-out i s energ ized and the coins are re j ec ted c leanout the coin acceptor mechanism. There may be some fore ign matte rslowing down or def lec t ing the coin .

Score Motor1 . Score motor runs cont inuous ly a t s t a r t of game, check fo l lowing,in order l i s t e d below:

(a) I f c red i t r e lay i s energ ized , check adjus tment of c red i t but tonswi tch and 7 score motor switch with brown-red wire and greenyel low wire . Also check adjustment of c red i t re l ay switch withgreen-yel low wire and brown-red wire .(b) I f coin r e lay i s energ ized , check adjustment o f 1 s t coin chuteswitch and 8 score motor swi tch with brown-red wire and bluewhite wire . Also check adjustment of co in r e lay switch andc re d i t r e lay switch with b lue-whi te wire . Also check ad jus t ment o f coin r e lay swi tch and c red i t re l ay switch with bluewhite wire and gray wire .I f 2nd coin chute adjus tment p lug i s adjus ted , for one playfrom 2nd coin chute , check adjustment of t ha t swi tch .(c) I f 2nd or 3rd coin chute re l ay i s energized, check the switchadjus tment of the r espec t ive coin chute . The wire form t ha tactuates the switch may have come out o f the s l o t . t i s bes tto remove the coin acceptor mechanism for be t t e r viewing. Alsocheck the 3rd coin chute adjustment plug. I f 2nd coin chuter e lay remains energ ized unplug the plug wi th brown-white wire;

if it i s the 3rd coin chute re l ay , unplug t he one with theorange-whi te wire . I f t h i s cor rec t s the problem, check thescore motor cam switch involved and the coin chute r e lay switcht ha t locks in the re l ay . ( the switch with jumper wire tothe r e lay co i l .

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(d) I f the r e se t re l ay i s energ ized t h i s re l ay i s pul l ed in bythe coin re lay . Once energ ized it i s he ld energized by a l lscore drum u n i t s zero swi tches as wel l as by #8 score motocam swi tch with yel low wire and green-black wire . I f anyone of these swi tches does not open, the r e se t r e lay w i l l rmain ene igized . The top zero swi tch locks - in the r e se t re l ay . The swi tch below it completes the c i r c u i t to pulsethe so leno id u n t i l the u n i t reads O .2. Score motor runs con t inuous ly dur ing play of a game:(a) Check the ad jus tment of the #1 score motor cam switch withyel low wire and red-ye l low wire . This swi tch should open aindex pos i t ion of the score motor un i t .

(b) I f t he re i s a b a l l in the outhole and the b a l l does not kickout check the outhole k icker c i r c u i t on the schematic . Thpulse t ha t ope ra t e s the outhole k icker so leno id i s genera l lyon cam 7 or cam 4 . Check adjustment o f swi tches on thesecams. It i s a l so poss ib le t h a t the outhole kicker so leno idi s defec t ive .3 . Score motor does not run:(a) Check the score motor t e rmina l lug . The wire may be unplugged.

(b) I f the 3rd coin chute re l ay i s energized, gene ra l ly the re i ssomething holding the 3rd coin chute switch in a down pos i t iTo check, remove the 3rd coin acceptor mechanism. On somegames, .it i s also necessary to check the 2nd coin chute .

Game Over Relay1 . This r e lay i s genera l ly an i n t e r lock r e lay which i s operated by

t r i p c o i l and a l a t ch c o i l the t r i p co i l i s the assembly t ha t r el eases the swi tch ac tua to r and the l a t ch co i l i s the assembly t hse ts -up the swi tch ac tua to r . On some games, the game over t r i pl ay i s loca ted on the t r i p bank assembly.2 . The t r i p c i r cu i t i s exp la ined under heading i n t roduc t ion to s e r vic ing sub-heading comple t ion o f a game3 . I f the game over r e l a y f a i l s to t r i p :(a) When game i s completed:Check adjustment of wiper f ingers on ba l l count un i t d i sc .

Check the r i ve t s on the b a l l count un i t d isc they may bed i r ty c lean the d i sc using a mild abras ive . Check wipert ens ion it should be about 1 ounce pre ssure check the ba lper game. See t ha t it i s i n the proper pos i t ion .The b a l l count un i t should r e se t a t the s t a r t o f each game.On some 1 player games with score glass marked b a l l in p laythe b a l l count un i t w i l l advance two s teps for 3 ba l l s pergame, or four s teps for 5 ba l l s per game.

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(b) I f power i s t emporar i ly in te r rup ted , check lock r e lay ,t should be de-energ ized . Also check switch ad jus t ment o f normally c losed lock re lay switch with yel lowwire and green- red wire .

(c) At the s t a r t o f a game, the game over r e lay should t r i p ,i f the b a l l count un i t had been advanced.Check the b a l l count u n i t zero swi tch with yel low wireand gray-whi te wire . This switch should c lose when theba l l count u n i t advances one pos i t ion .n a 4-player game, a l so check the zero swi tch on theplayer up u n i t with the same wire co lo r s . This switchshould c lose when the u n i t advances one pos i t ion .

Cred i t Unit also see under heading Step-up Uni ts)(1) This un i t records the number o f plays ava i l ab le with the c re d i tbut ton .(2) Cred i t s are increased (up to and including 25 c red i t s ) by:(a) 2nd o r 3rd coin chute r e l ay when energized.(b) When a game i s ad jus ted to award a c re d i t when a pre adjus ted score i s reg i s t e red .(c) When number match i s reg i s t e red a t the end o f a game (whenso adjus ted)(d) Specia l fea tu re award (not on a l l games) i s earned and adj us t ed to award a c red i t .(3) Credi t i s deducted when the c re d i t but ton i s used to s t a r t a gameor to make add i t iona l players e l ig ib l e to play .

(a) Credi t i s not deducted when a co in i s used to energize thecoin re l ay .(b) The c re d i t but ton when pressed (with a c re d i t shown) w i l lenergize the c re d i t re l ay ; which in turn w i l l energize thecoin r e lay .The c re d i t r e l ay when energized must remain energized t h rui t s own l ock- in switch, in se r i e s with the normally c losed#7 score motor cam swi tch , in order to deduct a c re d i t .

Score Drum Units(1) Reset a t s t a r t o f a game:(a) These un i t s are r e s e t by pulses from the score r e s e t r e lay s )t ha t s tep the un i t s to zero pos i t ions . When a u n i t reads0 the zero switch on the un i t should open (2nd switch fromtop) to s top the un i t from advancing.

(b) When the r e s e t r e l ay i s energ ized , t w i l l remain energ izedy i t s own lock- in swi tch , in se r i e s with the zero switchesof a l l the score drum u n i t s .

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:

I f any one of the zero swi tches ( top swi tch) i s c losed , ther e se t r e l ay w i l l remain energ ized . The r e s e t re l ay i s alsoheld energ ized by the #8 score motor with yel low wire andgreen-black wire .(c) The score r e s e t re l ay (s) i s fed by the same c i r c u i t t h a tholds the r e se t re l ay energ ized t he pu l ses come from #2and/or #11 score motor swi tches .

(2) Advance during play of game(a) one uni t s score i s a dummy r e e l and does not advance.(b) 10-90,100-900 and 1000-9000 score uni t s are advanced byt h e i r r e spec t ive 10 po in t , 100 po in t and 1000 po in t re l ays .(c) 10,000-90,000 uni t s are advanced by the 1000 po in t r e l a yswitch in s e r i e s wi th the 9th pos i t i on swi tch on the 1000-9000 un i t (bottom swi t ch ) . The 9th pos i t i on swi tch shouldc lose when the uni t s reads 9 .(d) When the 10-90 score drum reads 9 and 10 po in t s are scoredthe 10 po in t re l ay i s energ ized which w i l l advance the 10-90

score drum un i t to zero and a t the same t ime w i l l energ ize100 po in t r e l ay th ru the 9th pos i t i on swi tch (bottom switch)on the 10-90 score drum un i t .(e) Scores from 100-900 score drum un i t i s t r a ns f e r r e d to the1000-9000 score drum un i t in the same manner as descr ibedunder (d)(f) In a 2 p layer game, the above c i r c u i t a l so involves the b a lcount un i t d isc to separa t e t he 9th pos i t i on switches of 1sand 2nd p layer s .(g) In a 4 player game, the above c i r c u i t invo lves the p layer upun i t d isc to separa te the 9th pos i t i on switches o f var iousplaye rs .(h) There i s an end-of-s t roke swi tch on 10-90, 100-900 and 10009000 score drum un i t s (on bottom o f un i t s ) , which holds therespect ive 10,000 or 1000 po in t re l ay energ ized un t i l therespect ive un i t dr ive arm has engaged the next t oo th on ther a tche t . The uni t i s advanced by a spr ing when the so lenoidi s de-energ ized . The end-of-s t roke swi tch must open when

the dr ive arm has 1/32 t r ave l to engage the next too th o fthe r a t che t .

Thumper BumperI f the thumper bumper s k i r t (p las t i c r ing wi th pos t t ha t goes th ru thehole in the p lay f ie ld ) g ~ s tuck , t can be due to two th ings:

(a) The pos t on the s k i r t i s not centered in the cup o f theswitch blade . To cor rec t t h i s , the swi tch mounting bracketmay have to be moved.

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Post

(b) There may be too much switch t ens ion on the t i p o f thes k i r t pos t .(c) Clean out the cup on the switch blade and apply a verysmal l amount of coin machine grease in the cup. (onmetal cup only) .

There are two models o f the pos t assemblies:(a) Old model has only a solenoid .(b) New model has a solenoid and a l a t ch co i l . On the o ldmodel, the solenoid should be de-energized a t the end ofa game.

n the new model, the solenoid should de-energize when thepos t i s l a tched in down pos i t ion .I f it remains energized, check the adjustment of the end-of s t roke swi tches . The switches should be adjus ted in thela tched pos i t ion . Don t ho ld down plunger while adjus t ingswitches. The over - t rave l of the plunger in r e l a t i on tol a t ch pos i t ion i s about 1/32 . This i s ad jus tab le by movingthe l a tch co i l assembly.

Game does not score(1) Check 50 vo l t fuse .(2) Check cable plugs .(3) Check adjus tment o f fo l lowing normally c losed swi tches :

Game over re l ay switch with black wire and ye l low-black wire .Reset r e lay switch with yel low-black wire and red-white wire .T i l t r e lay swi tch wi th red-whi te wire and red wire .(4) Check 10 poin t , 100 po in t and 1000 po in t r e lays to see i any ofthem are energized. Check fo l lowing i a re l ay i s locked in:

Playf ie ld pane l switches, t ha t energize the re l ay . Switchesshould be open. Check lug end o f switch, see t ha t the re i sno s t rand of wire shor t ing switch, or a piece o f conductingmater ia l .(5) Check game over and tilt r e lays one or both may be t r ipped .

Relays(1) Cleaning Contacts :Only use burnishing t oo l . Don' t use a contac t f i l e , thecontac ts a re s i l ve r .(2) Switch adjus tment :Adjustments should be made with a s t rok ing act ion . Sharpbends f rac tu re the b lade .

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3) Buzzing re lays :Buzzing i s gene ra l ly caused by the a rmature not being ab leto proper ly se a t on the co i l core .Causes of buzzing:Too much back t ens ion on swi tch b lades .Too low vol tage to the t r ans fo rmer .Burr or fore ign subs tance on the c o i l core r e l ay frame bentou t o f shape.Armature ben t .

Step-Up UnitsStep up un i t solenoids do not advance the u n i t s , they p u l l the d r ivearm to engate the nex t tooth on the ra t che t . When the solenoid i sde-energized, the spr ing on t he d r ive arm advances t he u n i t to thenex t pos i t ion .

I 1) Sluggi sh un i t s :o check, non- re se t t i ng un i t s :

Raise t he d r ive s tep up) pawl and index pawl from the r a t c hsee par t s ca ta log ,page 113). Rota te wiper assembly, t should t u rn f ree ly .

o check, r e se t t i n g un i t s :Manually r e s e t un i t , then ro t a t e wiper assembly; t shouldturn f ree ly .o check, escapement r e s e t u n i t s :see par t s ca ta log , page 146). Hold down r e s e t plunger andr a i s e escapement pawl away from r a t c he t .Rotate wiper assembly or on r ep lay counter un i t , ro t a t e thedrum they should t u rn f r e e l y .

2) Causes o f Sluggishness :Units with d isc and wiper assembly . Disc may be d i r ty , r e sdue of old grease o r o i l .Rese t t ing un i t with a zero swi tch should be ab le to r e s e t wu n i t has advanced only one s tep .Too much t ens ion o f zero switch aga ins t ra t che t pin may holdra t che t from a complete r e s e t .Rese t t ing u n i t with a l i m i t swi tch when manual ly tu rned p a sthe l i m i t pos i t ion may hang up on the l im i t switch, thusprevents u n i t from r e se t t i n g to zero pos i t ion .

an introduction to bally flipper games

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