I am a fully licensed supplier.
 
This is a the chip set containing the MPU game code for the BABY PACMAN pinball.  
The chip set will be programmed on your choice of 2532 or 2732 EPROMS and will come with an installed official Bally/ Williams sticker. 
 
Purchaser must read and agree to the license agreement located below. 
 
Please note the original PROMS 9316  have been obsolete for many, many years. 
Unless you are already using, or your board is jumpered for EPROMS you will have to make some board modifications. 
 
Many of the original games used 3 PROMS in position U1, U2, and U6.
 
To save you money U1 and U2 have been combined in one chip. 
All the sets I am selling for this era of Bally are two chips. 
 
I will program the ROMS on your choice of 2532 or 2732 chips.
Please make a note in your payment which type you need.
 
Eprom Jumpering Chart
Bally AS-2518-35 MPU Board ROM Chip Jumper Settings to run 2716 (2516), 2532 (9332), and 2732 EPROM chips on your Bally AS-2518-35 MPU board.
Many Bally AS-2518-35 ("-35") MPU boards came with 9332 PROM chips, or 2732 EPROM chips from the factory. 9332 chips can be replaced directly with 2532 EPROM chips, with no jumpering required.
 
2532 EPROMs (or 9332 PROMS) in U2 and U6:
The following is a comprehensive list of settings for all 36 jumpers on the board, when using 2532 EPROM chips (or 9332 PROM chips) in locations U2 and U6: ("nc" = not connected)
1 nc, 2 nc, 3 nc, 4-12, 5 nc, 6 nc, 7-8, 8-7, 9 nc, 10-11, 11-10, 12-4, 13 nc, 13A-14, 14-13A, 15 nc, 16 nc, 16A-34, 17 nc, 18 nc, 19 nc, 20 nc, 21 nc, 22 nc, 23 nc, 24 nc, 25 nc, 26 nc, 27 nc, 28 nc, 29-33, 30 nc, 31-32, 32-31, 33-29, 34-16A, 35 nc, 36 nc

2732 EPROMs in U2 and U6: jumpers on the board, when using 2732 EPROM chips in locations U2 and U6: ("nc" = not connected)
1 nc, 2 nc, 3 nc, 4-13A, 5 nc, 6 nc, 7-8, 8-7, 9 nc 10-11, 11-10, 12-GND, 13 nc, 13A-4, 14 nc, 15 nc, 16 nc, 16A-29, 17 nc, 18 nc, 19 nc, 20 nc, 21 nc, 22 nc, 23 nc, 24 nc, 25 nc, 26 nc, 27 nc, 28 nc, 29-16A, 30 nc, 31-32, 32-31, 33-35, 34 nc, 35-33, 36 nc
 
If you have an older MPU a -17 model, commonly using tan sockets, further mods are required.
 
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