UPPER CABINET
(BACK VIEW>
MAIN
BOARD .
G R A Y
NEW TARGET
INTERFACE BOARD
THE NEW TARGET INTERFACE
BOARD MUST BE INSTALLED
SO THAT THE GRAY RIBBON
CONNECTOR IS ON THE LEFT,
AND THE CABLE OVERLAPS
THE P.C. BOARD. SECURE
I T I N P L A C E W I T H T H E
GRAY CLIP PROVIDED.
N E T W O R K
7
REPLACES DIODE NETWORK
E P R O M P / N
6 3 0 0 T
0
0
6.
T a k e t h e m a i n b o a r d o u t o f t h e g a m e .
R e m o v e r e s i s t o r n e t w o r k
a n d d i o d e n e t w o r k
M o s t b o a r d s
d o n o t h a v e s o c k e t s f o r t h e s e c h i p s s o t h e y m u s t b e u n s o l d e r e d ,
U s i n g a
s i d e c u t t i n g p l i e r s , c u t a l l t h e l e g s o f e a c h c h i p a n d
r e m o v e t h e b o d y ,
Each individual pin can then be unsoldered and
removed,
t h e n e w
r e s i s t o r n e t w o r k c h i p
R e m o v e t h e o r i g i n a l E P R O M f r o m
a n d
t h e n e w
EPROM at
R e i n s t a l l t h e m a i n b o a r d i n t h e g a m e a n d c h e c k f o r p r o p e r
operation and scoring,
