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MPU-A ASSEMBLY INSTRUCTIONS
1)
Unpack your board and check all parts against the parts lists
enclosed in the package.
2)
If gold contacts on the edge connector appear to be corroded,
use pencil eraser to remove any oxidation.
Scotchbright or any abrasive material as it will remove the
gold plating.
RESISTOR INSTALLATION
3)
Insert and solder nineteen
black/red) R1
See Assembly Diagram for location.
4)
Insert and solder ten 4.7K ohm 1/4 watt resistors
red) R14, R18, and R25 through R32.
location.
5)
Insert and solder one 470 ohm 1/2 watt resistor
brown) R22.
IC INSTALLATION
NOTE:
All IC pin l's point in the direction of the edge connector
unless otherwise indicated on the,board.
Insert and solder the one 74LS00 : Ln location A 2 .
6)
7)
Insert and solder the one 74LS02 at location A3..
Insert and solder each of the two 74LS04's at locationi B3 and
8)
A5.
9)
Insert and solder the one 7474 at location A4.
10)
Insert and solder the one 8224 at location Al.
Insert and solder each of the six 8T97's at locations B2, B 4 ,
11)
B 5 , B6 , B7, and B I O .
Insert and solder each of the two 8216's at locations B8 and 39.
12)
13)
Insert and solder the one 8212 at location A 1 0 .
DISCRETE COMPONENT INSTALLATION
14)
Insert and solder the 16 pin IC socket at location . A-9 .
i k
through R13, R15 through R17,
See Assembly Diagram for location.
Assembly Instructions
Edition 1
NOTE:
ohm 1/4 watt resistors
See Assembly Diagram for
•
-
Do not use
(brown/
R19, R20 and R21.
(vellow/violet/
(vellow/violet/
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