Socketing Your LM

You need to de-solder the chip shown circled in red in the following photo, so that you can install your ZIF socket. You can also use a regualr 28 pin DIP socket too, which might work out better, but more about that later.

You can check out this link which shows how to opporate the desoldering iron. de-soldering LM You might want to have a look around while you are there, as BM has some great FAQs to look at.

Once you have the chip desoldered you can carefully pull the chip out of the board. Be careful, as you don't want to damage the board when you pull it out. If it does not want to pull out with a gentle pull from your finger, you might want to double check that all of the solder has been removed from the board.

NOTE: Josh on Turbo Mopar has this to say abou the ZIF sockets. Thanks!

One thing I would note is that not all ZIF's are the same. Mine has the lever on the opposite side, on the end closest to the case. It does have a mark for pin 1, so do the chips. People need to note the orientation of the stock chip so they can install the ZIF..and thus the chip correctly.

Before you are actually able to install the ZIF socket, you will need to modify it. I used a coping saw to saw off the back part of the bottom layer so that it would fit over the yellow thing (that is the technical term) that sits just to the left of the chip. I have a picture of it here to give you an idea of what needs to be cut off.


Now you are ready to install your socket onto the board. If you are using a ZIF socket make sure that you have the lever facing the way shown here. If you put the lever going to the other side of the board, I am not sure how well it will close, if at all.


Here is a shot of my LM with the socket in it. Note that I used an 86' case so that I can take the chip out and put a new one in with ease.


Once you have the ZIF socket installed you will be ready to start making your own custom cals!

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