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Bally AS-2518-35 MPU Board ROM Chip Jumper Settings
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This article provides jumper settings required in order 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. Some boards came with 2716 EPROM chips in locations U1 and U2. These can be combined into a 2732 "combo" EPROM and used as one chip in U2.

We have and can make "combo" ROM chips for most games, if you need them. E-mail us for more info, or see our Rom Chips Page.

The following jumper settings must be made in order to use the specified chips on the board in locations U1, U2 and U6. The jumper changes aren't too complicated, as long as you are careful, patient, and comfortable working with soldering tools and circuit boards in general. If you are not, then trust the work to someone who is competent- you may thank yourself later.


2716 EPROMs in U2 and U6:

The following is a comprehensive list of settings for all 36 jumpers on the board, when using 2716 EPROM chips in locations U2 and U6: ("nc" = not connected)

1-5, 2-4, 3nc, 4-2, 5-1, 6nc, 7-8, 8-7, 9nc, 10-12, 11-29, 12-10, 13nc, 13A-14, 14-13A, 15nc, 16nc, 16A-18, 17nc, 18-16A, 19nc, 20nc, 21nc, 22nc, 23nc, 24nc, 25nc, 26nc, 27nc, 28nc, 29-11, 30nc, 31-32, 32-31, 33-35, 34nc, 35-33, 36nc

2716 EPROMs in U1, U2, and U6:

The following is a comprehensive list of settings for all 36 jumpers on the board, when using 2716 EPROM chips in locations U1, U2, and U6: ("nc" = not connected)

1-5, 2-4, 3nc, 4-2, 5-1, 6nc, 7-8, 8-7, 9nc, 10-12, 11-25, 12-10, 13nc, 13A-14, 14-13A, 15nc, 16nc, 16A-18, 17nc, 18-16A, 19nc, 20nc, 21nc, 22nc, 23nc, 24nc, 25-11, 26nc, 27nc, 28nc, 29nc, 30nc, 31-32, 32-31, 33-35, 34nc, 35-33, 36nc

2716 EPROMs in U1 and U2, 9332 PROM in U6:

The following is a comprehensive list of settings for all 36 jumpers on the board, when using 2716 EPROM chips in locations U1 and U2, and a 9332 PROM in location U6: ("nc" = not connected)

1-5, 2-4, 3nc, 4-2, 5-1, 6nc, 7-8, 8-7, 9nc, 10-12, 11-25, 12-10, 13nc, 13A-14, 14-13A, 15nc, 16nc, 16A-34, 17nc, 18nc, 19nc, 20nc, 21nc, 22nc, 23nc, 24nc, 25-11, 26nc, 27nc, 28nc, 29-33, 30nc, 31-32, 32-31, 33-29, 34-16A, 35nc, 36nc

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, 24A 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:

The following is a comprehensive list of settings for all 36 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, 24A 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

2532 EPROM (or 9332 PROM) in U2, 2732 EPROM in U6:

The following is a comprehensive list of settings for all 36 jumpers on the board, when using a 2532 EPROM (or 9332 PROM) in location U2, and a 2732 EPROM in location 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-29, 17 nc, 18 nc, 19 nc, 20 nc, 21 nc, 22 nc, 23 nc, 24 nc, 24A 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

Jumper locations by description:

E1: Directly below the U16 chip, which is near the top left corner of board.
E2: Below the U16 chip, which is near the top left corner of board.
E3: Below and to the left of the U16 chip, which is near the top left corner of board.
E4: Below and to the left of the U16 chip, which is near the top left corner of board.
E5: Below and to the right of the U16 chip, which is near the top left corner of board.
E6: Directly below the U16 chip, which is near the top left corner of board.
E7: Left of the U1 ROM chip.
E8: Left of the U1 ROM chip.
E9: Between and to the right of the U1 and U2 ROM chip locations.
E10: Between and to the right of the U1 and U2 ROM chip locations.
E11: Between and to the right of the U1 and U2 ROM chip locations.
E12: Between and to the right of the U1 and U2 ROM chip locations.
E13: Lower right of the U2 ROM chip location.
E13A: Just above U1 ROM chip location.
E14: Just above U1 ROM chip location.
E15: Above and to the right of the U3 ROM chip location.
E16: Above and to the right of the U6 ROM chip location.
E16A: Left of the U6 ROM chip location.
E17: Above and to the right of the U6 ROM chip location.
E18: Left of the U6 ROM chip location.
E19: Left of the U6 ROM chip location.
E20: Left of the U20 chip, which is left of the U1 and U2 ROM chip locations.
E21: Left of the U17 and U18 chips, which are left of the U2 and U3 ROM chip locations.
E22: Left of the U18 chip, which is left of the U3 ROM chip location.
E23: Left of the U17 and U18 chips, which are left of the U2 and U3 ROM chip locations.
E24: Left of the U17 and U18 chips, which are left of the U2 and U3 ROM chip locations.
E24A: Left of the U20 chip, which is left of the U1 and U2 ROM chip locations.
E25: Left of the U17 and U18 chips, which are left of the U2 and U3 ROM chip locations.
E26: Above and to the left of the U6 ROM chip location.
E27: Above and to the left of the U6 ROM chip location.
E28: Above and to the left of the U6 ROM chip location.
E29: Above and to the left of the U6 ROM chip location.
E30: Above and to the left of the U6 ROM chip location.
E31: Between and to the left of the U4 and U5 ROM chip locations.
E32: Between and to the left of the U4 and U5 ROM chip locations.
E33: Upper left of the U6 ROM chip location.
E34: Lower left of the U6 ROM chip location.
E35: Lower left of the U6 ROM chip location.
E36: Right of the U2 ROM chip location.
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