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Title: WTB: 3902 IGT I game Back plane *found* Post by: barsnsevens on January 12, 2014, 04:43:42 PM Want to do my first I game change so looking for this :89-
Title: Re: WTB: IGT key 40 chip and a 3902 IGT I game Back plane (mother board) Post by: Buzz on January 12, 2014, 06:05:02 PM Need more info. If your changing a Game King to a I Game and were using a 3902 board in the Game King there is no need to change the mother board. About the only difference in a Game King and a I Game is the glass and the software. Also I can think of two different mother boards used in a Game King. A picture of the MPU installed will help a lot.
If you have a Key 22 it will do anything the Key040 will do. Title: Re: WTB: IGT key 40 chip and 3902 IGT I game Back plane (mother board) Post by: barsnsevens on January 12, 2014, 06:17:12 PM My I game has Stinkin Rich on a 3902 board. I only have a key 17 chip I use on my s2000. I have another 3902 board on the way. So I was thinking I could just take out the current setup. Then Install this Money storm software on the new board. with another mother board and use the key chip. Then I can swap in main board mother board combos and change the games quicker. My thinking may not be correct as this is my first game change in an I game. :103-
Title: Re: WTB: 3902 IGT I game Back plane (mother board) Post by: barsnsevens on January 12, 2014, 07:27:07 PM Found a key chip. If the game changes are not too much trouble. I guess I can use the same mother board and just use the key 22 or 40 and switch out the games. Just trying to minimize chip swapping. The I game is all new to me just learning about them from reading on NLG. :3-
Title: Re: WTB: 3902 IGT I game Back plane (mother board) Post by: barsnsevens on January 12, 2014, 08:30:06 PM I just found the 960 stepper video back planes at rudys deals for $14.99 and bought 2. There are 3 left if anyone else needs them. :89-
Title: Re: WTB: 3902 IGT I game Back plane (mother board) Post by: Buzz on January 12, 2014, 08:51:55 PM I'll bet that's not the only 30 bucks you waste in your life time. You have a great idea and it does work, but you don't have to change the mother board you just have to change the EEPROM that is located on the mother board. It's a very small 8 pin chip and if you keep the chip with the game board the machine willl never know you changed games.
I'm pretty sure it was Tilt that came up with a way to mount the EEPROM on the MPU board. I've never done it so you will have to talk to him. Title: Re: WTB: 3902 IGT I game Back plane *found* Post by: barsnsevens on January 12, 2014, 09:06:33 PM I'm just learning what I can as I go so a newbie mistake on my part. :25-
Title: Re: WTB: 3902 IGT I game Back plane *found* Post by: Buzz on January 13, 2014, 01:22:53 AM The number on the EEPROM is 24C64 There is a bunch of them on ebay anywhere from 30 cents each to 7 bucks each. Make sure you buy DIP version. ( look at the picture and make sure it has legs and fits in a socket and not the solder on chip.)
Title: Re: WTB: 3902 IGT I game Back plane *found* Post by: barsnsevens on January 13, 2014, 11:17:14 AM Thanks buzz. That is the way i will go. Looks easier than swapping mother boards too. K+ to you for your help
Title: Re: WTB: 3902 IGT I game Back plane *found* Post by: 4 Deuces on January 13, 2014, 11:32:15 AM The number on the EEPROM is 24C64 There is a bunch of them on ebay anywhere from 30 cents each to 7 bucks each. Make sure you buy DIP version. ( look at the picture and make sure it has legs and fits in a socket and not the solder on chip.) Hey Buzz, I thought the chip was 24LC16? I didn't know the 24C64 was compatible? Good to know. :Dave |