|
|
|
EAROM Replacement
Technical
Several Atari games used the ER-2055, or NI-7055, EAROM -
electrically alterable read only memory, this was an 'also ran' technology
which, according to history, lost out to EEPROM and later Flash
memories. Anyway history aside one problem with these chips is they need
an uncommon write voltage, -29v !!
So if you have a JAMMA adapter for Dig
Dug, Millipede, Centipede or even if you've just replaced the original power
supply in one of these games and don't have all the voltages available, the
high-score saving feature won't work (!)
The solution
is this plug in EAROM replacement board, it remaps the pinout of the EAROM to
use a standard EEPROM without the need for any special voltages.
It plugs
into the EAROM socket of the games with no additional wiring of hacking of the
board.
See the install guides for the details for each specific
board set.
The Board
Order online
or contact us for more information.
|
|
