User`s guide

TranswarpGS uses an 8-pin socket intended for holding a half size
oscillator module (picture D).
Make sure the module is oriented with the marked end (usually having a dot,
squared corner, and/or notch) facing upward. Make sure the module is oriented
with the marked end (usually having a dot and/or notch) facing upward. The lower
two pins of the module should be in the lowest two pins of the socket.
WARNING: The oscillator may be damaged if installed incorrectly.
ZipGS
* x x * _______
GND 1 o o 14 POWER 1 |o \ 14
NC x x NC | |
NC x x NC | FULL | ______
GND 4 o o 11 POWER | SIZE | 1 |o \ 8
NC x x NC | | | HALF |
NC x x NC | | | SIZE |
GND 7 o o 8 OUTPUT 7 \______/ 8 4 \_____/ 5
(A) (B) (C)
TranswarpGS
______
GND 1 o o 8 POWER 1 |o \ 8
NC 2 x x 7 NC | HALF |
NC 3 x x 6 NC | SIZE |
GND 4 o o 5 OUTPUT 4 \_____/ 5
x - no connection (NC)
______________________________
016- How do I modify my ZipGS to accept the new "skinny"
RAM chips?
With a little modification you can make a Zip with wide sockets accept both
the wide (600 mil) and the newer 300 mil skinny 32k x 8 Static RAMs (SRAMs).
Ground yourself then carefully pry out the static rams. Look at the socket and
you will notice two or three horizontal bars holding both sides of the socket
together (Picture D). Carefully snip those out (wire cutters work well for
snipping plastic). This will expose a column of holes. Now, solder in half of a
socket.
Refer to Picture E below. Plug your skinny SRAMs into the left and center
columns making sure the notch on the static ram is facing up-- i.e. toward top
edge of board. (Applying power with a chip incorrectly socketed could damage the
chip.)