Processor Technology 8KRA Assembly And Test Instructions page 17

Static read/write memory module
Table of Contents

Advertisement

PROCESSOR TECHNOLOGY CORPORATION
8KRA STATIC READ/WRITE MEMORY MODULE
SECTION II
( ) Step 10 .
Install Augat pins as follows:
NOTE
You will find it helpful to hold the
board between two objects so that it
stands on one edge.
/
Area C .
Remove two pins from one-half of the carrier.
Insert them into the mounting holes from front (component)
side of board.
Solder pins from back (solder) side of the
board so that the solder "wicks up" to the front side.
(This will hold the pins firmly in place. )
Insert a component lead into one pin and reheat the solder.
Using the component lead, adjust pin until it is perpen ­
dicular to board.
Allow solder to cool while holding the
pin as steady as possible.
Repeat with other pin.
NOTE
If the cooled solder is mottled or
crystallized, a "cold joint" is in ­
dicated, and the solder should be
reheated.
Check both installations for cold joints and solder
bridges .
Area B .
Remove three more pins from the carrier and in ­
stall them in mounting holes P, CLR and U.
Install these
as you did the Area C pins.
Check for cold joints and
solder bridges.
Area A .
Remove remaining three pins from carrier.
In ­
stall two of them in mounting holes W and 0.
Install the
third in mounting holes 1 or 2 if desired (refer to Sec ­
tion III of this manual).
Install these pins as you did
the Area C pins. Check for cold joints and solder bridges.
NOTE
Only three Augat pins are supplied
for Area A since the 8KRA runs at
maximum speed and requires no wait
states. Should you have a pin avail ­
able and wish to install it in the
remaining mounting hole, do so.
Step 11 .
Install DIP Switch in its location in the upper
right corner above the heat sink.
Position it so Switch
No. 1 is at the left.
As you will note, the DIP Switch
II-9

Advertisement

Table of Contents
loading

Table of Contents