NVRAM Battery Eliminator for Bally/ Williams WPC89 Systems and WDB95 Pinball Machines . Replaces 62256, 6264 ram chip. 28 pin. NVRAM Battery Eliminator for Bally & Williams System  Pinball Machines. Excellent quality.

 DIP28 NVRAM Adapter for Pinball 

No Battery Needed 6264,62256, RAM

Willams WPC 89 and WPC95 Plug n Play

  • The New NVRAM chip will work in Williams WPC 89 and WPC95 pinball machines.  It replaces the 6264 , 62256, will require no batteries to hold settings.  You simply disconnect the batteries, remove the original 6264 0r 62256 SRAM and install the new NVRAM adapter module.  
  • ****Some Williams games have the original SRAM hard soldered to the MPU so you must change the socket out with a DIP28 wide socket that needs to be installed.  WPC89 and WPC95 games have a real time clock which will not keep proper time when NVRAM is used.

It Should last a lifetime when used in a pinball.  

WILLIAMS INSTALLATION NOTES:

  • 6264 RAM is NOT COMPATIBLE with Williams System 11 and System 11A games. Early Williams System 11 games use a 24 pin 6116 with no provisions to install a 28 pin 6264. 
  • Williams System 11 and Williams WPC System RAM chips are soldered to the board. Un-solder and install a 28 pin socket for the new RAM, along with changing jumper positions. This requires intermediate level soldering skills.
  • Installing an NVRAM into a Williams WPC game eliminates all time keeping functions. This affects 'Midnight Madness' modes in some games.
  • Some later Williams WPC MPU's use a 62256 RAM. Check your MPU before swapping your RAM to make sure you do not need to change the RAM jumper position.