MasterMotorola Posted September 18, 2020 Share Posted September 18, 2020 I've played my Raiden cartridge so much that it stopped saving new high scores and names 15 years ago and I hate having to photograph the scores. Is there any way to replace a chip so it will remember the high scores again? My friend got this insanely high score but there is no way to have a proper championship without the device saving the evidence. Quote Link to comment Share on other sites More sharing options...
Songbird Posted September 18, 2020 Share Posted September 18, 2020 Yes, you could do that, if you have decent soldering skills and don't mind opening up the cartridge. You have to use a Philips screwdriver to punch two holes through the label in the upper right and left corners, unscrew both screws, then carefully use a thin flat-blade screwdriver on the two side notches (narrow edges of the cartridge shell) to gently pop the case open. There is a small 8-pin chip called 93c46 which is used to save data. Replace this chip and you're all set. 3 Quote Link to comment Share on other sites More sharing options...
tripled79 Posted September 18, 2020 Share Posted September 18, 2020 29 minutes ago, Songbird said: Yes, you could do that, if you have decent soldering skills and don't mind opening up the cartridge. You have to use a Philips screwdriver to punch two holes through the label in the upper right and left corners, unscrew both screws, then carefully use a thin flat-blade screwdriver on the two side notches (narrow edges of the cartridge shell) to gently pop the case open. There is a small 8-pin chip called 93c46 which is used to save data. Replace this chip and you're all set. Is that all? 2 Quote Link to comment Share on other sites More sharing options...
MasterMotorola Posted September 18, 2020 Author Share Posted September 18, 2020 39 minutes ago, Songbird said: Yes, you could do that, if you have decent soldering skills and don't mind opening up the cartridge. You have to use a Philips screwdriver to punch two holes through the label in the upper right and left corners, unscrew both screws, then carefully use a thin flat-blade screwdriver on the two side notches (narrow edges of the cartridge shell) to gently pop the case open. There is a small 8-pin chip called 93c46 which is used to save data. Replace this chip and you're all set. Thank you, Songbird. Luckily I have my own print shop so I can replicate the label before possibly damaging it (I will try a low heatgun setting and see if the label will peel off first). Does anyone have suggestions on where to buy 93C46 EEPROM chips? Quote Link to comment Share on other sites More sharing options...
+Mitch Posted September 18, 2020 Share Posted September 18, 2020 Did you try resetting it first to make sure it is not just corrupt? Mitch 2 Quote Link to comment Share on other sites More sharing options...
+cubanismo Posted September 19, 2020 Share Posted September 19, 2020 1 hour ago, Mitch said: Did you try resetting it first to make sure it is not just corrupt? This 1 hour ago, MasterMotorola said: . Does anyone have suggestions on where to buy 93C46 EEPROM chips? DigiKey Quote Link to comment Share on other sites More sharing options...
MasterMotorola Posted September 19, 2020 Author Share Posted September 19, 2020 6 hours ago, Mitch said: Did you try resetting it first to make sure it is not just corrupt? Mitch If you mean holding * and # during bootup then yes, I've tried that many times over the years. I've played the game so much that I'm sure the number of EEPROM writes has been exceeded and it simply won't save the scores any more. Thanks for all the suggestions. I'll buy a few 93C46 chips and see if that works. Quote Link to comment Share on other sites More sharing options...
Isgoed Posted September 19, 2020 Share Posted September 19, 2020 Have you tried cleaning the cartridge connector? Quote Link to comment Share on other sites More sharing options...
Songbird Posted September 19, 2020 Share Posted September 19, 2020 17 hours ago, tripled79 said: Is that all? 2 1 Quote Link to comment Share on other sites More sharing options...
tripled79 Posted September 20, 2020 Share Posted September 20, 2020 On 9/19/2020 at 11:00 AM, Songbird said: You're trying to get me to slip something...it won't work... Quote Link to comment Share on other sites More sharing options...
tripled79 Posted October 25, 2020 Share Posted October 25, 2020 On 9/18/2020 at 4:46 PM, Songbird said: Yes, you could do that, if you have decent soldering skills and don't mind opening up the cartridge. You have to use a Philips screwdriver to punch two holes through the label in the upper right and left corners, unscrew both screws, then carefully use a thin flat-blade screwdriver on the two side notches (narrow edges of the cartridge shell) to gently pop the case open. There is a small 8-pin chip called 93c46 which is used to save data. Replace this chip and you're all set. I ordered some new 8 pin chips thanks to the link above. I repaired my copy of Alien vs. Predator. Works like a charm now. I then tried replacing the chip on my copy of Protector SE, but no dice. The game still won't save high scores or waves... Oh well... 1 Quote Link to comment Share on other sites More sharing options...
+cubanismo Posted October 25, 2020 Share Posted October 25, 2020 (edited) Protector SE uses a different chip. 93C86. See my post here for details on how to pick the right one (or make the one you got work) from DigiKey/mouser/etc.: This one should work, but you'll have to short the pins like I note in my post above: https://www.digikey.com/en/products/detail/microchip-technology/93C86C-I-P/665630 Edited October 25, 2020 by cubanismo Add DigiKey link Quote Link to comment Share on other sites More sharing options...
tripled79 Posted October 27, 2020 Share Posted October 27, 2020 On 10/25/2020 at 1:56 PM, cubanismo said: Protector SE uses a different chip. 93C86. See my post here for details on how to pick the right one (or make the one you got work) from DigiKey/mouser/etc.: This one should work, but you'll have to short the pins like I note in my post above: https://www.digikey.com/en/products/detail/microchip-technology/93C86C-I-P/665630 Did you have a different alias at the post above? I don't see your post. But anyway thanks for clearing that up about the different chip. Quote Link to comment Share on other sites More sharing options...
+cubanismo Posted October 27, 2020 Share Posted October 27, 2020 2 hours ago, tripled79 said: Did you have a different alias at the post above? I don't see your post. But anyway thanks for clearing that up about the different chip. No. Hmm. Make sure you click on "cubanismo replied to a topic" and not "Create and burn eproms..." The former takes you to my post, the latter to the top of the thread. It's a very old thread, and my post is many pages in (the 2nd to last on it currently). Quote Link to comment Share on other sites More sharing options...
tripled79 Posted October 28, 2020 Share Posted October 28, 2020 19 hours ago, cubanismo said: No. Hmm. Make sure you click on "cubanismo replied to a topic" and not "Create and burn eproms..." The former takes you to my post, the latter to the top of the thread. It's a very old thread, and my post is many pages in (the 2nd to last on it currently). Okay, thanks. I'm placing an order for a chip now. Quote Link to comment Share on other sites More sharing options...
CPUWIZ Posted October 28, 2020 Share Posted October 28, 2020 If you de-solder the EEPROM, I hope you realize that all save games are gone, after replacing it. Quote Link to comment Share on other sites More sharing options...
CPUWIZ Posted October 28, 2020 Share Posted October 28, 2020 Otherwise, you will need a device programmer, with an SMD adapter to backup the EEPROM, then program it to the new one. Quote Link to comment Share on other sites More sharing options...
Songbird Posted October 28, 2020 Share Posted October 28, 2020 Correct, Protector SE uses a 93C86. That was done for future indie CD game use, to provide extra "save slots" for other games. However that feature was never utilized. Eventually I may change Prot SE to use a 93C46 just to make it common with other Jaguar carts I produce. Or alternatively I could release a Protector Triumvirate that includes Protector, SE, and Resurgence all on one cart with separate game saves. 3 Quote Link to comment Share on other sites More sharing options...
tripled79 Posted October 30, 2020 Share Posted October 30, 2020 On 10/27/2020 at 8:22 PM, CPUWIZ said: If you de-solder the EEPROM, I hope you realize that all save games are gone, after replacing it. What saves? This is my problem. My cart has never saved any data. Quote Link to comment Share on other sites More sharing options...
+cubanismo Posted October 30, 2020 Share Posted October 30, 2020 On 10/28/2020 at 6:26 AM, Songbird said: Protector Triumvirate that includes Protector, SE, and Resurgence all on one cart with separate game saves. This please ? 1 Quote Link to comment Share on other sites More sharing options...
tripled79 Posted November 7, 2020 Share Posted November 7, 2020 On 10/25/2020 at 1:56 PM, cubanismo said: Protector SE uses a different chip. 93C86. See my post here for details on how to pick the right one (or make the one you got work) from DigiKey/mouser/etc.: This one should work, but you'll have to short the pins like I note in my post above: https://www.digikey.com/en/products/detail/microchip-technology/93C86C-I-P/665630 Finally got the new chip soldered to my Protector SE board. Shorted pins 6 and 8. Fired up the game, and it appears to save my score now. After all these years I won't have to write down my high scores anymore. Thank you. 1 Quote Link to comment Share on other sites More sharing options...
Machine Posted November 7, 2020 Share Posted November 7, 2020 On 10/28/2020 at 7:26 AM, Songbird said: Correct, Protector SE uses a 93C86. That was done for future indie CD game use, to provide extra "save slots" for other games. However that feature was never utilized. Eventually I may change Prot SE to use a 93C46 just to make it common with other Jaguar carts I produce. Or alternatively I could release a Protector Triumvirate that includes Protector, SE, and Resurgence all on one cart with separate game saves. Yes Please! ? Quote Link to comment Share on other sites More sharing options...
Pete5125 Posted November 30, 2020 Share Posted November 30, 2020 On 9/18/2020 at 6:31 PM, MasterMotorola said: Thank you, Songbird. Luckily I have my own print shop so I can replicate the label before possibly damaging it (I will try a low heatgun setting and see if the label will peel off first). Does anyone have suggestions on where to buy 93C46 EEPROM chips? Raiden is a relatively common cart, could probably find new, in box, sell the old one on Ebay and be out very little money in the process. Quote Link to comment Share on other sites More sharing options...
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