Spectre GCR Manual Manuals - Atari Documentation Archive

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capacitor end of the sockets.
Spectre 128: The ROM marked "342-0341whatever"
goes into the socket FARTHEST
A WAY from the gold fingers, right next to the
little chip on the board.
The ROM marked "342-0342-whatever"
goes into the socket CLOSEST to the gold
fingers, next to the capacitor that goes across
the board.
Check out Figure 2 to the right.
How to Insert Chips
Getting It Going
Figure 2
Not a lot has been said so far about how to insert chips into
sockets. What you want to do is get all 28 legs in there without
bending one up, or having it stick out the side. Generally, the chips
come to you a little splayed out; the legs point out too much. This can
be cured by gently bending them, a wee bit, against a table or
whatever. Don't overdo it. And if you blow it, a pair of needlenose
pliers will fix many ills.
Start one row of 14 pins. Then, push towards that row gently, and
get the other row started. Then, push the chip on in. If it really resists
hard, you're probably bending a pin; ease up and try again.
Next, pick the board up and look between the chip and the socket;
there's about 1 /16th inch of space there to look in. You'll be able to see
the row of pins. Look for one bent up, bent in, or splayed out. Make
sure the chip notch is on the capacitor end of the chip; we have a $10
bet here at the office that I can't write a manual well enough to prevent
someone from blowing up their ROMs, so help me out, okay?
Do this for both chips. Now, that wasn't so bad, was it?
Be sure to press both chips down firmly. If they're only in partway,
they won't work.
If you're plugging in 64K ROM chips, the 341-0220 chip replaces
the 342-0341 chip, and the 341-0221 chip replaces the 342-0342 chip.
Once again, the notch goes towards the capacitors.
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