Bally 5000 Plus, Manual

Page: 292 / 388

1 0 . HANDLE S ENSOR BOARD
I n t roduc t i on
T h i s s e c t i on cove r s t he h a n d l e sensor boa r d .
sec t i on a r e a s fo l l ows : T h e p a r t s a n d ob j e c t i ve s o f t h i s
PARTS
Theo r y o f Oper a t i on
Boa r d Assemb l y
Conne c t o r loca t i on a n d U s e
C i r cu i t D e s c r i p t i on
T r oub l es hoo t i ng
OBJ ECT I VE S
Know how t he h a n d l e sensor boa r d func t i on s
loc a t e t he componen t s w i t h p a r t numb e r s
Know t he use o f t he connec t o r
Know how t he c i r cu i t wo r k s
Know how t o t r oub l e s hoo t t he boa r d
Boa r d Schemat i c Downs i ze d h an d l e senso r s c hema t i c f o r r e f e r e nce
f l ag--A p i ece o f n i ck e l p l a t e d me t a l a t t ac h e d to t he h a n d l e m e c h a n i sm and used
a s t he r e f l ec t i ve sur f ace for t he r e f l ec t i ve opt i c a l sw i t c h
r e f l ec t i ve zone--T h e a r e a whe r e a f l ag causes t he em i t t e r t o r e f l ec t b a ck t o t he
d e t e c t o r .
P r eQues t l ons
Read t he fo l l ow i ng Ques t i ons a n d wr i t e down any o t h e r Que s t i on s .
1 . Whe r e a r e t he f l ag s l oca t ed ?
2 . A r e t he r e f l ec t i ve o p t i c sw i t c h e s depende n t o r I ndependent o f e a c h o t h e r ?
Theory of Ope r a t i on
T h e h a n d l e sensor boa r d uses 3 r e f l ec t i ve opt i c sw i t c h e s to s e n s e t he
( s t a t e ) o f t he h a n d l e mec h a n i sm . T h e em i t t e r ( E ) a n d t he de t e c t o r ( D )
ang l es . T h e I n f r a r ed l i g h t sou r c e i s con s t an t l y be i ng em i t t e d . When
passes , t he E r e f l ec t s back I n t o t he D t u r n i ng ON t he sw i t c h .
pos i t i on
a r e on
a
f l ag
The d a t a I s s e n t t o t he backp l ane boa r d , t he n t o t he I /O boa r d , a n d on t o t he
MPU boar d .
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