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  • Quote from rewrite: “I can think of at least one good potential reason! ” I know… I know... I had a look some time ago, did I post the romset list compatibility with the multi?

  • Quote from ThisGuy: “Payment sent for mine. I am very excited for this. Thank you @Apocalypse for this and all the work you do. It is very much appreciated ” Thanks for the kind words but don't forget our dear @Mitsurugi-w!

  • PCB Repair

    Apocalypse - - General Arcade Tech Help

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    Quote from alfa75: “The website is from me ” So now I'm confused. Were you working with a repairer who quit? Or do you subcontract the repairs?

  • PCB Repair

    Apocalypse - - General Arcade Tech Help

    Post

    Quote from djsheep: “ 3. Before asking how to repair, it's worth searching the forum, google and other places for repair logs related to the board you're working on. Here's a few places to start you off reading: jammarcade.net/pcb-repair-logs/ wiki.arcadeotaku.com/w/Category:Repair_Logs mikesarcade.com/arcade/repairs/ newlifegames.net/nlg/index.php?action=forum#5 aussiearcade.com/forum/arcade/…-and-monitor-repair-logs/ ” So gutted not to have made it to your list…

  • PCB Repair

    Apocalypse - - General Arcade Tech Help

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    Quote from xodaraP: “Crackdown can be converted into S24 multi but as far as I'm aware there's no way to restore the original functionality. ” Yes there is now: you can restore the keys in the FD1094 module. The main issue here is for most games, once you've paid for shipping back and forth plus parts plus labour it costs you more than a new fully working board. And I'm not even talking about bootlegs.

  • It saves high scores IIRC. I believe if a blank one is inserted it's automatically "formatted" upon next boot.

  • No, 27C64 isn't rewritable, it's an UVPROM. [EDIT] I meant you can't rewrite it in situ as expected for a 28C64. The 27C64 has to be UV erased first.

  • @nio it took a while but: arcade-projects.com/forums/ind…postID=215754&#post215754

  • Quote from aoiddr: “Which pin on the connector would you need to run a wire from to get a 4th button hooked up to play a game like Bullet? ” I believe it's been mentioned here before. IIRC it's pins 10/M (P1/P2).

  • Hi all, I've been finally hit by the failure of that custom module. It's used on many Sega boards (X board, Y board, Systems C/C2/18/24/32) to increase palette. Since I don't have the tools to decap one I simply pulled a good one and studied it on the bench. It's rather simple (mainly latches and resistors to form a DAC). Only thing I'm not 100% sure of are resistors exact values. I set my PSU to +5.00V and measured voltage before and after the final amplification stage transistors then deducted…

  • Quote from totologic: “You are right, only MVS with native DB15 ports (ex: MV1F) can support the multitap as the JAMMA doesn't implement the needed OUT pins. ” I guess the missing signals still exist and can be tapped somewhere.

  • Quote from Hammy: “Nice what's the other rom board? ” Dunno. But definitely can't be plugged under the motherboard I have since it's lacking the 5 big connectors.

  • Quote from xtrasmiley: “Wait, what?! I'm in. I try to post on shmups, but when the top 100 scores are on the first 10 pages, and you are like 127th place... it's sort of sad. I know I suck, I just don't like being shown how much! I'm down for some games I have. Multi's or shooters, or brawlers. Heck, Smash TV! ” I doubt all those scores are genuine. That's why I prefer small "tournaments" with friends. Few competitors so you're assured to be in the top 10, and really nothing to lose, people will…

  • Quote from rewrite: “Quote from twistedsymphony: “Maybe start with games that are available on the multis? ” Can't hurt to try again I suppose. ” S16B, 1 credit, all dipswitches off (normal difficulty, etc.). Maybe something a bit uncommon so we all start from the same point?

  • 837-7968 pcb

    Apocalypse - - Sega System 16/18/24/32

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    @Mitsurugi-w it's up to you, gerbers and BOM are freely available, you just need to figure out if it's worth the time and effort for you.

  • 837-7968 pcb

    Apocalypse - - Sega System 16/18/24/32

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    Quote from saturn: “Great ! Could you make me one ? How much does it cost ? Please. Regards. ” I could probably do a small run if there's enough interest (10 units?). Only thing is with the current situation shipping takes forever… Price? $50 fully assembled? Or I can send them as a kit and you do the soldering, at parts cost. @Mitsurugi-w interested in making those?

  • 837-7968 pcb

    Apocalypse - - Sega System 16/18/24/32

    Post

    Quote from xtrasmiley: “following... maybe it needs a repro? never seen it for sale. ” Mate I've reproduced it, gerbers and BOM are freely available: Sega player expansion board - I/O board (837-7968) reproduction I worked on it for the very reason it never goes for sale.

  • Quote from Hammy: “Wonder if @Apocalypse has checked it out yet ” Not yet I got from you a motherboard + romboard, and an other romboard that doesn't seem to be compatible with the motherboard I have.

  • Quote from King of Dirt: “It's not a great method, but it works, though I don't like the feeling of destroying the original bios chip. NO SIR I DON'T LIKE IT. ” Is that BIOS different than the JAP/US/EUR ones? I have piles of them. I agree with you not wanting to destroy the OG chip but you don't seem to have many options with the tools you have. Plus you already clipped pin 2. Quote from King of Dirt: “Or is it just possible that I have a bad burn of the UniBIOS on this eeprom? I'll pull the on…

  • Quote from Mitsurugi-w: “I've heard everyone in Chicago is dead. They all died from catching COVID from R. Kelly. ” He had to be more cautious. Everybody knows kids are healthy carriers. (Black humor inside).