Cools at 14:07, 20 May 2011

2011-05-20T14:07:16Z

New page

[[Image:FD1094.jpg|300px|thumb||FD1094 CPU]]

Some [[System 16]], [[System 18]] and [[System 24]] boards by Sega have custom cpus labeled FD1094 or FD1089. These are 68000 processor cores with a battery and encryption keys which are used to decrypt the game at run-time. Unfortunately these batteries eventually die out and the game is rendered useless.

There are two ways of preventing this form happening. You can replace the battery inside of these, and keep doing so every 5 years or so in order to keep them as original as possible; or you can buy/build a kit to replace the encrypted ROMs with unencrypted ones and change the FD processor for a standard 68000 one.

Please refer to the external links section for information on these methods.

== External Links ==

* [http://www.segaresurrection.com/ Sega Resurrection] A site that sells kits to revive dead Sega boards
* [http://www.arcadecollecting.com/dead/dead.html The Dead Battery Society] Site with information on suicide arcade games
* [http://www.jamma-nation-x.com/jammax/tutorials.html JAMMA Nation X] has a tutorial to change an FD processor battery, check under Other->Misc.
* [http://cgfm2.emuviews.com/fdconv.php Charles MacDonald FD1094 Game Conversion] Information on how to decrypt these games by yourself

[[Category:PCB Tech]]

FD1094 and FD1089 suicide battery - Revision history

Cools at 14:07, 20 May 2011