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PROCESSOR TECHNOLOGY CORPORATION
8KRA STATIC READ/WRITE MEMORY MODULE
SECTION II
2.1
PARTS AND COMPONENTS
Check all parts and components against the "Parts List" (Table
2-1 on Page II-2 ).
If you have difficulty in identifying any parts
by sight, refer to Figure 2-1 on Page II-3.
2.2
ASSEMBLY TIPS
1.
Scan Sections II and III in their entirety before you
start to assemble your 8KRA Memory Module.
2.
In assembling your 8KRA, you will be following a step-by-
step assembly procedure.
Follow the instructions in the order given.
3.
Assembly steps and component installations are preceded
by a set of parentheses.
Check off each installation and step as you
complete them.
This will minimize the chances of omitting a step or
a component.
4.
When installing components, make use of the assembly aids
that are incorporated on the 8KRA PC Board and the assembly drawing.
(These aids are designed to assist you in correctly installing the
components. )
a.
The circuit reference (R3, CIO and IC20, for example)
for each component is silk screened on the PC Board
near the location of its installation.
b.
Both the circuit reference and value or nomenclature
(1.5K and 7400, for example) for each component are
included on the assembly drawing near the location
of its installation.
5.
To simplify reading resistor values after installation,
install resistors so that the color codes read from left-to-right
and top-to-bottom as appropriate (board oriented as defined in Para
graph 2.5 on Page II-5 ).
6.
Install disc capacitors as close to the board as possible.
7.
Should you encounter any problem during assembly, call on
us for help if needed.
2.3
ASSEMBLY PRECAUTIONS
2.3.1
Handling MOS Integrated Circuits
The memory IC 1 s used in the 8KRA are MOS devices.
They can
be damaged by static electricity discharge.
Always handle MOS IC 1 s
so that no discharge will flow through the IC.
Also, avoid unneces-
II-l
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