Arachnid 1000 Series Information page 37

Changes for new
make it a
set holes
Tie pins I's 8 & 10 of IC 1128 to pin #12 of IC i/28
Tie pin #7 of IC 1137 to -5v
Tie IC #41 pin #9 to IC 842 pin 1115,
Tie IC 822 pin #11 to -5v
Tie collect 945 to L21
Reverse
be tied to IC ii43 pin
pin 1111
Change value of R142 from 680 to 100 ohm
Tie L5
Tie IC #29 pin #8 to IC's #42,
Tie etch from R46 to LED's ii's 13, 14,
Tie IC 1140 pin i/14 to Vcc
Redesign counter logic for the Remove Darts and Game Select
lights.
The Remove Darts latch suppiy is being sunk by a NAND driver.
These logic levels should be gated.
IC #42 pin #3 should be part of Data Bus Line
tied to Line 83?
Install
Motherboard
5 uf electrolytic
accordingly
on IC #48 pins B's 9 & 10, pin #9
between
The Coin O.S.
hysterises buffers
by P
like
pin 810 should be tied to IC#43
44, 46, 48, 50 pins
should not stop the Game Select strobe.
on inputs
the breadboard,
not pin 1'116
15 pins 812 not pins 114
from dartboard
should
Why was it