Changes
/* Fitting the SP512 */
# Carefully remove the Z80 CPU from it's socket. Put it to one side.
# Carefully remove the Gate-Array from it's socket.
#*There are two versions of the Gate-Array, '40007' and '40010'. These may be marked on the P.C.B. Otherwise this is how you can identify them: #**40007: This version of the Gate-Array often has a flat piece of metal stuck to the top of it it with white paste. There is another piece of metal which holds it in place and this goes under the Gate-Array itself. #**40010: This version of the Gate-Array can be identified from the markings. #**For the '40007', carefully remove both the Gate-Array and both pieces of metal together. Do not seperate. #**For the '40010', use an I.C. lifting tool or follow the tip below. #*Tip for removing ICs: #**You can remove ICs using a flat head screwdriver. Put the head of the screw driver under the IC at one end of the socket and lever it up gently. Do the same on the other side. Repeat on both sides until the I.C. can be removed from the socket. Be careful not to break any it's feet. If any feet have bent, then carefully straigten them back into position. If any feet have broken then you have to find a replacement IC.
# Lay the SP512 P.C.B. flat on a table with a piece of packing material underneath.
# Fit the Z80 into the socket on the SP512 P.C.B, align the notch on the Z80 with the notch on the socket. Press firmly into position.
# Fit the Gate-Array into the appropiate socket on the SP512 P.C.B, align the notch on the Gate-Array with the notch on the socket. Press firmly into position.
#*NOTE: There are two sockets that the Gate-Array can fit into. #**The top socket is for the 40007 version of the Gate-Array. #**The bottom socket is for the 40010 version of the Gate-Array. #**Either of these may be fitted to your CPC464 and with some P.C.B. designs there is often space for both. My CPC464 had a 40010 type.
# The SP512 has three positions for the connection from the SP512 to the CPC464 P.C.B. The SP512 has been designed so that it can be used with various revisions of the CPC464 P.C.B. I had to adjust this to connect the SP512 to my CPC464.
#*To find the appropiate position: #**Hold the SP512 P.C.B. above the CPC464 P.C.B, align the connector for the Z80 CPU so it is over the socket for the Z80 on the CPC464 P.C.B. #**Make a note of the position of the Gate-Array socket on the CPC464 P.C.B. #**Adjust the connector so that it is over the socket for the Gate-Array on the CPC464 P.C.B.
#Connect the SP512 to the CPC464 P.C.B. press the connector for the Z80 and the Gate-Array firmly into position.
#Hook the end of the lead from the SP512 onto the top of resistor R112 on the CPC464 P.C.B..
#Close the two pieces of the CPC464 together.
#Turn it over and fit the screws.
#Connect power lead to computer and switch it on.
== Removal of the SP512 ==
