3-A .
Memory Boa rds
I n t roduct i on
T h i s s e c t i on cov e r s bo t h t he P i ggybaCK a n d PAL boa r ds . T h e p a r t s a n d ob j ec t i ve s
o f t h i s sec t i on a r e a s fo l l ows :
PARTS
Theo r y of Ope r a t i on
Boa r d Assemb l y
Connec t o r loca t i on and Use
T r oub l e shoo t i ng
Boa r d Schema t i c s
Key Wo r ds
OEl
Ou t pu t E n a b l e low
OEH
Ou t pu t E n a b l e H i gh
OB J E CT I VE S
Know how t he boa r d s func t i on
loc a t e t he componen t s w i t h pa r t numbe r s
Know t he use o f t he v a r i ous conne c t o r s
Know how t o t r oub l e shoot t he boa r d
Downs i z e d l E D boa r d s c hema t i c s
PAL
P r ogr ammab l e Ar r a y log i c
Theory of Oper a t i on
The P i ggybacK Boa r d a l l ows for e x p a n s i on a n d e n h a nceme n t o f game so f t wa r e
f e a t u r e s . T h e m a i n p r og r am , wh i c h I s I de n t i ca l I n a l I mode l s , r em a i ns o n t he MP U
boa r d .
Two E PROMs on t he P i ggybacK ROM Boa r d con t a i n t he
pe r sona l i t y p r og r am ,
wh i c h
d e f i ne s t he
pe r sona l i t y f e a t u r es o f a pa r t i cu l a r mode l . Game con t r o l
I n f o r m a t i on f o r v a r i ous mode l s I s con t a i ne d I n t wo supp l emen t a l E P ROMS .
P a y b a c K
per cen t ages c a n be s e l e c t e d w i t hou t r e qu i r i ng a n y so f t wa r e c h a nges , us i ng a n
8 -
pos l t on J umpe r a r r ay on t he P i ggybacK R O M Boa r d . E x h i b i t 3A- 1 I n t h i s s e c t i on
s hows page S o f t he FO-SOO- 1 S , I ns t a l l a t i on s I ns t r u c t i on s o f S t r a p S e t t i ng s .
The P i ggybacK PAL Boa r d con t a i ns a new decode r a n d decodes spec i f i e d
a d d r e s s
l oc a t i on s a s d e s c r i be d u n d e r C i r cu i t D e s c r i p t i on i n t h i s sec t i on .
3A-2
FO-5000-1 ( R e v A )
Summary of Contents for 5000 Plus
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