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Bally AS-2518-35 MPU Board ROM Chip Jumper Settings NOTICE: For some very important information, please read the Technical Article Notice and Disclaimer, found on our Technical Articles Index page before performing any of the work described below. The information given below assumes you have read the Notice and Disclaimer first. CONTACTING US: (Please Read) Parts & Supplies: Free free to call or e-mail us if you have any questions about parts that we sell which are mentioned in any of the Technical Articles on our site. Technical Help & Questions: E-mail and Phone Help: We do not provide any technical help by phone or e-mail, unless you bought your game directly from our shop. If you did not, we cannot help you- please do not contact us. We simply do not have the time or resources to provide technical assistance by e-mail or phone for games that did not come directly from our shop. Instead, please see the section below on "Do It Yourself" for further help. Pinball Repair: If you have a game that you need serviced or repaired, please see our Game Service & Repair page for further info. Do-It-Yourself: For information on working on your own game, see the online repair guides at www.pinrepairs.com 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 Back to Top

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