I don't think I ever posted about this here, but I have NVRAM (battery eliminator) for Gottlieb Sys3 available now.

6264se_nvram.jpg

NVRAM for Gottlieb Sys3
https://www.pinitech.com/products/gottlieb_sys3_nvram.php

Please note that this upgrade requires modifications to the MPU to be made as noted on the website. The original RAM is soldered to the board & the included IC socket needs to be installed. You then need to remove the Dallas DS1210 chip and make a single wire jumper on the board. It may also be necessary to make an additional jumper change depending if your board was originally using 6116 RAM (24-pin) or 6264 RAM (28-pin).

Also would advise caution as Gottlieb Sys3 MPU boards have fairly thin traces on them, so if you've never done desoldering / soldering before it would be best to send the board out to someone that does nvram upgrades or go the normal route of lithium coin cell in these games. The NVRAM upgrade is just an option for people that want to put NVRAM in more of their games.

And again, many thanks to the efforts of MarAlb on this one!

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http://www.pinitech.com - "Pinball Inspired Technology"
NVRAM, Bally/Stern LED Displays & Mods for pinball machines