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  • Well that burned interface board is clearly a problem but you could convert it back to Killer Instinct just to make sure the rest of the board is OK. Whatever blew that thing might have blown other stuff too. sadly I don’t think that chip’s code is dumped, so you may be stuck using it for KI1 or hunting down a replacement anyway.

  • @SmokeMonster the wiring schematic makes it look like the pcb has amplified stereo, not line level. Is that what you’ve found? I never owned the filter board or cab and can’t make sense of the actual “jamma” pinout for the audio (manual). But here’s the schematic, those pins wired right to the speakers (and there is an amp on the sub board) a25aSQE_d.jpg If that’s the case, and @Foreezy you’re putting speakers in your build, you could just wire stereo speakers direct and power them with the boar…

  • @SmokeMonster did you make a jst to rca adapter for this board, to show him? My guess is he’s using the supergun’s 1/8 inch headphone jack, which is getting sound from the jamma edge Edit nevermind your tweet is the first hit in google!…tatus/1081241928862175232 @Foreezy make one of these for stereo! Pinout is on page 61/62 of the manual here smokemonster modified his pcb to accept a particular connector, but you could just ta…

  • Also show me some audio wiring? I don’t recall that the jamma edge supports stereo on this pcb, it may only come directly from the audio sub board. I’ll double check on mine later though.

  • Just posting to say I wholeheartedly support this project and will get out my primal rage board sometime soon to see what troubleshooting I can come up with. In the meantime I’d recommend verifying every piece in the video and audio chain to make sure it’s the pcb. Also there is an audio setting in the test mode, have you adjusted that?

  • Quote from ShootTheCore: “Great repair! You're turning into a Psikyo expert!! ” Don’t miss the Psikyo pièce de résistance. Worth a good, slow close read... today especially.

  • Quote from Apocalypse: “I'm confused now... What was not the issue and what did you not fix? ” I know the feeling, I’m constantly confused!

  • Quote from Apocalypse: “Quote from ekorz: “Game. Fixed. ” Hey, this is MY pattern sentence! ” Your royalty check is in the mail!

  • Quote from xtrasmiley: “Nicely done. I'm going to follow your lead here on my Haunted Castle PCB. It's OK on the circles front, but the damn game is too hard and sort of sucks. I'll start with the caps then then move to the RAM... ” Honestly if the game is too hard I think just swapping out the CPU for a slower one helps a lot. Sort of makes it “dumber” you know? Might want to do that first.

  • Woah, is that dumped @SmokeMonster? Would be fun to make one for sure!

  • Lucky Moron PCB Repair Episode 3: Strikers 1945 II (or: Measure Once, Cut Anyway) Even though I know about The Glitch now (awesome stuff @Hatsune Mike!), I still suck at Dodonpachi and can't even 20cc it, so it was time to put that board away and load up to some good old-fashioned Psikyo shooter goodness. Drop me some P's! Upon plugging in my pcb though, I was greeted with a horror of horrors. An affront to the senses. A crippling, game-breaking error. This travesty should be obvious to even the…

  • Home Arcade System

    ekorz - - RGB's lab


    Quote from zwooky: “If you happen to have a spare retro-access cable I'd definitely be interested. Don't really wanna mess with the etim one. ” It’s an etim but I can assemble it if you want.

  • Home Arcade System

    ekorz - - RGB's lab


    @zwooky I probably have a spare, maybe retro-access maybe the etim one. I can take a look and figure out a price if you want

  • Quote from Hammy: “Keep going while you are on a roll, momentum is everything and there's no shortage of shit boards!!! ” I just got a few finishing touches on the next log, it’ll be up soon. One or two more fixes are on deck after that. repairs are done, just need to write up the narrative. But I’m gonna hit my brick wall soon after that... I’m calling that stage my “Boot Camp” episodes as they’ll cover a bunch of pcbs that don’t boot. But none of them boot yet!!

  • Quote from kuze: “Great stuff @ekorz, nice to see a Psikyo game back from the dead! ” this win makes me 1 out of 2 on strikers1999 boards. My previous failure was sent to @Apocalypse and he solved the issues in like half a second!…-1945-iii-psikyo.html?m=1 and if you like Psikyo you’ll love my next log!

  • Quote from ArcSys101: “Wow My Dragon Blaze Just Died on Me With the Dark red display ” Sorry to hear that! That’s a good one, certainly worth repairing. It just boots to red screen? Checked the program roms? Getting clock to the cpu? Reset signal doing whatever a reset signal is supposed to do? I’m pretty OK if the game starts up, but I don’t have a lot of weapons for something that doesn’t boot at all. I’ll write some logs for dead pcbs.... if I ever get them working.

  • Lucky Moron PCB Repair Episode 2: Strikers 1999 (or: Sold "Tested Working 100%") Symptom: eBay seller willfully ignored the boot-up screen where it CLEARLY SHOWS "WORK RAM NG!" and sold the board as working anyway. Game also freezes several seconds into game-play. Why do I even eBay anymore? jY6EDnc.png Other Guy's repair log: Boot screen shows Work RAM NG. Replaced Work Ram. Game fixed. My repair log: RAM? Damn it. OK well RAM are usually the chips that are moderately sized, but not the ROM chi…

  • Quote from acblunden2: “Can you post pics of the top and bottom of the board assembled? May be possible my board is not assembled correctly. ” The solder sides face inwards and the ribbon cable doesn’t twist : But I’m gonna just say that it’s not even worth it really. The slowdown on this game is INSANE unless you elbow knockdown everyone. Just play the nes version. Future log may involve overclocking this thing...

  • Quote from acblunden2: “Fix my dead Double Dragon! ” You kiddin’ me? I barely fixed this one and it was already booting!

  • Lucky Moron PCB Repair Episode 1: Double Dragon (or: how you would fix this pcb since you aren't @caius either) A local collector recently listed multiple boards for sale, and the combination of both a) geographically-nearby and b) reasonable-prices put me into a buying mood, even though several were listed with problems. Fresh off a few conversions, I thought it was time to bust out my logic probe and poke something metal. Maybe piggyback something. First up, Double Dragon! 42M1QB7.png The sell…