General Jamma and pre-Jamma

This is the right Forum if you have any project for converting General Jamma Boards or Pre-Jamma boards.

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Threads

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Pinned How to tell the difference between Irem M72, M81, M82, M84, and M85 Hardware

22 +12 5,018

Retro Arcade 562

AtomishWave : What's this mod ?

  • Giants
  • brizzo
3 132

brizzo

Need extra ground pins for buttons

4 133

imfuraisoth

Konami GX Conversions?

19 1,552

ArcSys101

Karate Blazers help needed: backgrounds are shifted up!

0 43

Original Splatterhouse PCB pics, anyone?

  • stt1
  • ekorz
44 1,888

ekorz

Anyone ever had this problem on a Psikyo SH2 board (Strikers 1999)

3 220

ArcSys101

TMNT PCB Sound Issues

15 +1 529

djsheep

Sony COH-2000 Arcade Target Box​ Atari dev board for the ZN1 arcade platform

5 +2 400

CoolFox

Irem M84 Conversions

107 +1 7,940

Hammy

CPS2 video flickering

7 171

mathewbeall

MK3 Daughter board on a Wolf Unit PCB

8 +1 489

psykom1

Does this sega bloxeed contain "suicide battery"?

4 176

PekArcadeGamer

Games that don't have Attract Mode during Free Play

22 +1 1,115

twistedsymphony

Sega System 16B Golden Axe Conversion Guide

14 +8 2,065

chacal231077

Seibu SP1 battery

0 90

PANA Custom Long supergun edge connector

8 333

DarthMig

Question about -5 voltage on astro city

35 1,428

tiff_lee

Namco NB-1 conversion to Nebula’s Ray

83 14,784

Derick2k

Bad Dudes

10 473

Derick2k

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