5 The NEO GEO AES and MVS systems Although SuperGun consoles compact the JAMMA form to as small a form factor as possible, one aspect. If you trace this on an actual cart, you will see that this is actually "A0" (A0 - A18). JAMMA Standard Pinout. There is a specific pin-out record on file for the JAMMA pinout class: This Video Game Pinout Data Sheet Was Typed In By James R. The Netherlands. (solder side of the 60. I purchased this with the intention of consolizing it and just haven't gotten around to doing it :( The board. You'll need to wire up the extra buttons necessary for a Neo Geo board though. 8 MB File. com). If the cabinet is not wired for MVS you can potentially damage your board unless the MVS board has a specific JAMMA edge connector. On pin 3 it needs composite video, but I can't find that on any pinouts for the jamma connector. Mickey Juice Timid Neo Newbie. On a MULTISLOT system game selecting is only available during the attract mode sequence. Some games (Street Fighter, Mortal Kombat, etc) which need extra buttons have extra connectors for these additional controls. 96 mm) card-edge connector. Quick Background: I am making a SuperGun to power my MVS (With the MVS pinout on the JAMMA harness (silly I know but I can't find a JROK that is available. If you plug an MVS pinout 4 slot motherboard into your standard JAMMA cab, you will probably find that the sound is all messed up, this is because its only playing one channel as the cab isn't wired to have stereo output from the JAMMA edge connector. Skip to content image/svg+xml Search. The JAMMA harness in the blast city only supports 3 buttons per player. The differences between the JAMMA and MVS pinouts can be found here: JAMMA Vs MVS pinout. For instance, the SNK Neo Geo MVS has it's own standard based in JAMMA,. This adapter converters the. Game Board Pinouts: GIF of JAMMA pinout. "COIN 2" ends in a regular single connector. 7) mvs preserves the income data of max 8 games even. 2 pin - 5v power lead. Post by MatskaT » September 5th, 2010, 4:23 am. Item Description: Safely converts the standard NeoGeo MVS system pinout to work correctly in a standard JAMMA type arcade cabinet. SNK NEO GEO MVS to JAMMA Adapter with button remapper and line level Stereo sound out22 Reaction score 0 Location Pennsylvania Oct 27, 2008 #1 I have a NEO GEO MVS 4 slot cabinet that I was hoping to play Jamma and Jamma+ games on. . Connect the above pins to the input on the video encoder. A supergun will work with any JAMMA board. The graphics were good (considering I will probably have to replace the monitor), but there was absolutely no sound. Thanks to bernie1844 who pointed out a typo on the Jamma vs MVS . Typically 18 is cheaper and still safe so it will be that. Single-slot MVS boards use the normal JAMMA pinout, but the multi-slot boards have a slightly different pinout so will require a JAMMA adapter. Primarily I am interested in Neo Geo experience and I want a joystick / controller that accurately replicates the 4 button setup. JAMMA, JAMMA+, and “CHAMMA” compatible; Built-in voltmeter (selectable +5 V/+12 V). . V4. ) (I know right?! why not get a MV1FZ because there is no documentation on CMVS 4slots lol) The PCB is in working order (Cap kit done last year) and CGA/VGA pcb added to work outside of my cab. Hi all, OK, so here is what I want, let me know if anyone out there can do it. If you choose to use the existing JAMMA wiring, you will need to make some modifications. The current pinout doesn't really matter as you will be replacing all that with jamma wiring. Ok. If you love a cozy, comedic mystery, you'll love this 'whodunit' adventure. This isn't really a 4-slot specific issue except to say the pinout is a bit more dense and complicated. e. ) cut and lift the trace that goes from 2 to 3 until it comes off: 3) Let's move to the parts side of the board. The Neo-Geo MVS cabinets (2,4,and 6-slot) use a pinout very similar to the JAMMA pinouts. If you google image search JAMMA harness schematics, you get back a bunch of results and they are not all the same. You CAN run a mono output Neo Geo MVS board in a JAMMA cabinet. I can get the "A" button to work sometimes, but that's. New posts Search forums. 25. 5 mm stereo connector is not in use; CSync Regeneration feature; Selectable raw JAMMA/unprocessed CSync;. . Remember to connect the center pin on. CMVS Custom Built Consolized NeoGeo MVS Units by Xian Xi This is the first 2 slot I consolized. The new JNX Big Red is a JAMMA to MVS board adapter. It's interesting that the Golden TEE folks claim the game is JAMMA, but it clearly is not. I realize that it is Jamma+, but I figured I would be able to switch to 2 player via dip switches. Second, wire your sixth action button to the pin 27 location previously used by the relocated ground wire. Kick 1 Player 1 2. It does depend on how many buttons your cabinet has though. Qty: $ 22. I need help wiring up my Cabinet. from 102762105. You must remove any wires that provide power to your existing JAMMA Harness. Posted September 20, 2011. +5v - From Power Supply. The 2 slot, 4 slot and 6 slot are not JAMMA. Google 'Jamma pinouts' Link to comment Share on other sites. CTRG1 = Graphics Roms, S1, M1 CTRG2 = Program Roms, Sound Roms NOTE: On CTRG2-B, The "A" lines start at "A1". I've replicated the fix on two boards so I know it's the harness. The JAMMA connector is a . Solder Side Pin Pin Parts Side GROUND A 1 GROUND GROUND B 2 GROUND +5VDC C 3 +5VDC +5VDC D 4 +5VDC -5VDC E 5 -5VDC +12VDC F 6 +12VDC. (one button per side of the JAMMA connector) JAMMA Pinout The first DC2JAMMA project I made used a 6 button cabinet, the second a 4 button 'NeoGeo' style cabinet. Kick 3 Player 2 7. 2 pin - 5v power lead. OP . The PC2 JAMMA encoder is Plug & Play, so you do not need to install any drivers. Queensland, Australia. Safely converts the standard NeoGeo MVS system pinout to work correctly in a standard JAMMA type arcade cabinet. Mar 11, 2012. Game played but sounds were off/bad/missing or. The majority of games use a subset of this pinout. Charles, Missouri. sadly, i have the jamma pinout memorized. It pretty much works but needs a lot of TLC. The Neo Geo board supports four buttons per player. Downloads: Jamma vs. 6 pin - RGB + Sync input lead. Only a single slot Neo is 100% JAMMA. Hey hey, here's the deal. MVS Jamma pinout Click to expand. I'm currently in the process of consolizing my MV-1C board, and need some assistance; I'm wiring up AV to a DIN 8 connector, as my hardware is capable of accepting RGB video directly, and I'm following this guide. However, when I play a SNK cartridge in the 2-slot everything plays fine. Live (or Line), Neutral, and Ground. Jan 7, 2019. I just don't have the access to that info. Neo Geo MVS Cart Slot Pinout for repairs, protos and conversionsSNK NEO GEO MVS TO JAMMA ADAPTER STEREO WWW. Where do I connect them on the jamma side. This Multigame board uses a slightly different JAMMA pinout. RS-485 pair + ground. Re: MVS MV-1F motherboard: stereo via JAMMA?Email - sales@highscoresaves. This board can play one Neo Geo MVS cartridge at a time. They obviously work as I was able to get into the menu in the first place and make these changes. ). MVS edge connectors aren't fully JAMMA compliant depending on the model of the board. If it does the function of what it was previously connected to, then the switch is bad. One other problem im facing is one of the main arcades i want is neo geo mvs 1 slot but i know that the jamma harness only supports buttons 1 2 and 3 and button 4 comes from the kick harness which the neo geo board dosnt use. Posted the pinouts for the Control Panel Molex connectors in the Downloads section. Nov 14, 2019. . I say this because my control panel is the JAMMA 56 pin standard and I don't want to mess with that. CTRG1 = Graphics Roms, S1, M1 CTRG2 = Program Roms, Sound Roms NOTE: On CTRG2-B, The "A" lines start at "A1". Jep, footprint for the video pinheader is 2. The different placement of the service button on the MVS jamma harness gave me a headache when I built my supergun too. Emulation isn't accurate. What you get. The extra wiring is sometimes called jamma plus or in fighting games it's usually referred to as a kick harness because the extra harness was for the added kick buttons that. Neo-Geo MVS = Neo-Geo Multi Video System. Don't hold me to that. Designed to redirect SNK Neo Geo MVS multi slots PCB signals to work properly in a JAMMA cabinet or with a Supergun. JAMMA Harness w/. #1. What's new. Check out the Downloads section for pinouts and manuals, and the Project section for information on modifying your MVS setup or Jamma harness. All NeoGeo MVS units are almost fully JAMMA compatible; however, they have a small twist in their pinout scheme. 5 mm stereo connector or the 8 pin mini-DIN if the 3. . Recently there was a thread about JVS Type 2 (837-13844-02 or 837-13741-01) not working with some games due to the low. Q: What is a Multi Video System?Designed to redirect SNK Neo Geo MVS multi slots PCB signals to work properly in a JAMMA cabinet or with a Supergun. It will be revised and appended as I think of things or as people tell me I am wrong. (Old one here) PLEASE NOTE: THESE ARE THE CORRECT SIZE IN INTERNET EXPLORER (right click the pic and select print) It has been requested by some members, that this be stickied if possible please. 2. Jan 19, 2007. I'm curious how others have handled this aspect of it. JAMMA mono board > JAMMA to MVS adapter > MVS cab = works with mono audio over the speakers. I don't think there are that many Jamma boards out there that use >4 buttons and for those that come to mind that are worth playing e. Parsec has a built-in NTSC video converter and RGB buffer chips that provide composite and s-video as well as RGB output. Facebook Twitter Reddit Pinterest Tumblr WhatsApp Email Share Link. You might need to populate some pins to get the 4th button to work, and having two ways to switch games doesn't sound great to me, but it ought to work fine. The JAMMA Video Standard (JAMMA VIDEO規格, JVS) is a newer JAMMA connector standard. Unused 9. All NeoGeo MVS units are almost fully JAMMA compatible; however, theyItem Description: Safely converts the standard NeoGeo MVS system pinout to work correctly in a standard JAMMA type arcade cabinet. now works fine. SF2 or MK there is too much hassle involved from my perspective (different. It has a six button layout and was hooked up to a CPS2 board (MvsC and D&D Tower). UPDATE: Solved it. Changes: Female edge connector side. They are both wired to a different pinout. Shipping and handlingRocklin, California. 31768. Some games<br />. On my MV 1F board the "Z80 error" was caused by the connectivity between Z80 and Ram, like GadgetUK said. Keep me honest folks. It is a JAMMA to MVS adapter. MV2-A - Slot 2 - first sounded distorted, Sound test in Hardware was fine. Do I want to connect the 5V pin from my power supply to the 5V. e. Compatible with SNK NEO GEO MVS multi slots boards. Item Description: Safely converts the standard NeoGeo MVS system pinout to work correctly in a standard JAMMA type arcade cabinet. png JAMMA. Arcade cabinets wired to the JAMMA standard can be made to play all games built to. G'day i have just received an snk mvs motherboard it is the mv-1f, should i make up an mvs harness and if i do does this board give me stereo or do ihave to go the the special left right connectors on the board or are they just an option?? Sorry very new 2 this all help appreciated, i have been g. JVS, or Jamma Video Standard (sometimes even called JAMMA 2), is a specification by a JAMMA special sub-committee consisting of the major arcade game manufacturers. The BeharBros just announced a new supergun specifically designed for use with Neo Geo MVS boards, called “ Shogun “. Buttons 4-6 are connected via the Hirose DF1B connector. Jamma pinout connector standard diagramJamma pinout (pdf) Diagram. Another way to do it is to wire for JAMMA(4 button) output and use an adapter for a multi-slot MVS. Wiring Harness for MVS-4-25. There was a time when all TVs came with only an antenna socket on their backs, and bringing any form of video input to them meant dicing with live-chassis power supplies. Thread starter Mickey Juice; Start date Dec 29, 2004; M. XXX-in-1 boards typically use what we colloquially call CHAMMA (chinese jamma) it does not 100% conform to JAMMA pinouts, as some wires are repurposed for other buttons and whatnot. well 'officially' Jamma only support 3 buttons and some cabs 4, so what @thomas3184 is referring to is that usually you need a 'Chamma' (Chinese Jamma) adapter to get all 6 buttons on the Jamma connector. You can identify these cabs by the Neo Geo board - look at the edge connector and see if it says "JAMMA" next to it. This means that as long as you. To be honest I have never compared them pin for pin. Step 3: The JAMMA Harness. JAMMA Pinout I hooked a Neo Geo MVS 1-slot board up to a JAMMA harness without changing any wiring and it worked fine. T are a few minor but important differences between the NeoGeo MVS and regular JAMMA pinouts. Its for the MV 1F board. 60 MB. . A purple pin is a confirmed location but needs a photo. 6. . Video Ground - 14. Audio output: Unbalanced, attenuated to line level; stereo support for the NeoGeo MVS; Video on an 8 pin mini-DIN connector (XRGB mini/NESRGB pinout); audio on a 3. MVS. This is the third revision of Tim’s famous Scart to JAMMA adapter. Hola a todos los RetroResistentes!! En este vídeo os explico los detalles del pinout del conector JAMMA. In general there will be 3 conductors for single phase AC. Apparently I can fry the thing if I just use it directly since the voltage is too high. 57. . - might be loose if the adapter pcb is thin and the springiness in the connector pins are a little waek (poor contacting)The bullet numbers 1 & 2 match the pic numbers. JAMMA Harness w/” Quick Disconnects Ground wire to the ground loop and the appropriate JAMMA wire JAMMA Functional Connection Diagram. These are from a very hard to read copy of the schematics, so I hope that I got the pin names correct. We can. But just remember if you use it for MVS PCBs that the test switch will not function since it's expecting a JAMMA pinout. Neo Geo Wiring Diagram: MVS Jamma Harness Labels - based on MVS manual: MVS Link Cable Instructions - Front - BackIt can only be used for JAMMA boards, you can't use it on MVS PCBs unless you use the stereo input header. It appears that the 1-slot MVS board is what I see the super gun being used on. MVS (on hardmvs), I was wondering if it was possible to have only one test button on supergun for both MVS and Jamma. Or where can I find an MVS pinout (for the old-style 1 slot i think)? Don't tell it's simply JAMMA cause it's not. Changes: Female edge connector side. Help with Pinouts10 There are NO traces to connect the leads on the MVS boards where -5V would come in from a Jamma Harness Using a harness with a live -5V connection should be fine (check first) 11 Audio Positive (mono) will accomidate mono fram a Jamma board to one speaker (if wired) Title: Jamma to Neo Geo Pinout . Am I correct in assuming the 1 slot MVS boards will connect up/work in a Jamma or MVS cab with either harness, but the multislot MVS boards will not work in. 6 MB File. Please check the following table before making the purchase: Some JAMMA cables have 27 and 28 pins grounded. I'm connecting just one coin button, the yellow button shown below. Caris Nautilus Guest. To be honest - the 4 button cabinet is just about as good as the 6 button one - and involves less work. Catcopter. Specifically Jamma power to Power supply So I put my Jamma harness (from Bob Roberts) together following the hardmvs site since I am restoring a Neo Geo MVS 4-25, and I'm currently at the stage where I want to test the monitor, board and game cart to see if. This is Earth Ground, which is not the same as common ground on DC circuits. Re aligned cart pins for better contact. If you are experiencing screeching audio or missing sounds check for continuity with these. But very close to JAMMA. Play your JAMMA boards in your MVS multi slot cabinet. But keep in mind that if you rewire it back to MVS pinout that you will need a JAMMA to MVS board adapter to use that 1 slot in the MVS cab or get a multislot motherboard. COM JA-MVS-S v1. Operation Sheets. How to Consolize an MVS Board From Neo-Geo Contents 1 In This Guide 2 Parts Needed 3 Enclosures 4 Stereo Sound Mod 5 Powering the Board 6 The Video Encoder. Mar 17, 2001 #1. I. All NeoGeo MVS units are almost fully JAMMA compatible; however, they have a small twist in their pinout scheme. Source: schematron. 2: JAMMA arcade cabinet Playing Atomiswave on a regular JAMMA cabinet is a far simpler task compared to the Naomi as the system uses the standard JAMMA pinout, allowing you to simply plug the JAMMA harness (included in any JAMMA arcade cabinet) to the system without any fuss such as I/O converters and the like. JVS is incompatible with USB devices because it does not use the USB signaling standard. I'm pretty sure there might be a way to increase. 2: JAMMA arcade cabinet Playing Atomiswave on a regular JAMMA cabinet is a far simpler task compared to the Naomi as the system uses the standard JAMMA pinout, allowing you to simply plug the JAMMA harness (included in any JAMMA arcade cabinet) to the system without any fuss such as I/O converters and the like. The J-Pac allows a PC to connect to this connector in your jab, allowing video to be sent to the arcade cabinet monitor, controls to work, and more. DON'T SKIP THIS STEP, Put one of the ┳ pieces in pin 7 of the jamma harness ; WITHOUT THE PCB CONNECTED turn on the machine and adjust the voltage in pin 3 to 5. There seems to be a few wires missing from the JAMMA connection. Download. The 48 pin connector in this case is also used to hook up the kick buttons. So, I'm aware that - for example - MVS cabinets aren't 100% JAMMA compatible and trying to use a JAMMA pcb in an MVS cabinet. . -Move 'Audio Ground' wire from Pin M -> Pin 27. PDF Author: Briggs Subject: hardMVS Created. Author Topic: can i play neogeo MVS games on a jamma cab (Read 7277 times) 0 Members and 1 Guest are viewing this topic. Post by willynilly » November 20th, 2010, 7:52 pm. Does anyone know if the MVS MV-1F motherboard outputs audio in stereo via the JAMMA edge or only via the dedicated speaker and headphone outputs? Top. 5. Not for use with single slot Neo. I. I'm not talking about a neo, I'm talking about a MKII cabinet that was converted to Capcom vs SNK. or an MVS mobo in a JAMMA cabinet is problematic because of the. I got a 1 slot MVS board and realized that SNK's standard is 4 buttons + Start and JAMMA is 3 + Start. KaPH33n. If you are experiencing screeching audio or missing sounds check for continuity with these. Does anyone know if the MVS MV-1F motherboard outputs audio in stereo via the JAMMA edge or only via the dedicated speaker and headphone outputs? Top. 1-Slot boards, use the JAMMA standard with only 3 boards being able to use stereo output although through the PCB pinhead connector not the. $4899. . There are no converters as there is no need for composite/SCART RGB unlike the AES. used by JAMMA pcbs as a general rule, but there are some exceptions you must be aware of. For playing jamma boards in your mvs multislot cab. Posts: 293 Joined: Sun Feb 19, 2012 9:32 am Location: United States. #2. any one know if thats possible to take out the cps2a/b and put a mvs 1 slot in it ??? any help will be appreciated !!! thanksJAMMA is a standard connector used on many arcade boards to simplify conversion of cabinets from one game to another. This type cable is only needed for connecting stereo audio from the JAMMA PCB (assuming the JAMMA PCB is capable of producing stereo sound and has a separate output connection). SNK Neo Geo MVS 1-Slot Arcade Circuit Board, PCB, Works. Hello, I have a Neo Geo MVS 4-25 PCB that I am making into a CMVS 4 slot (ish. The harness in the cabinet is too short to allow for installing/removing the pcb without having to contort yourself into tantric sex positions, so. - to the pcb is called a JAMMA wiring harness. SNK NEO GEO MVS to JAMMA Adapter with button remapper and line level Stereo sound out norton9478. Forums. All NeoGeo MVS units are almost fully JAMMA compatible; however, theyHey all, So I recently picked up a JAMMA cabinet. What's new. JAMMA RGB-Pi Pinout Serie4. PDF Author: Briggs Subject: hardMVS Created. pins do the same thing (by hardware design). On pin 3 it needs composite video, but I can't find that on any pinouts for the jamma connector. 187 inch (3. gris996. JAMMA is a standard for connecting arcade PCBs to an arcade cabinet (power, video, joystick/button input). Location: Alingsås, Sweden. Joined Nov 2, 2003 Posts 14. Take the wires from the output of the encoder and connect those to your Video jacks. 985 Erve Williams Road Moultrie, GA. Forums. Source: diagramweb. MV4. MVS boards. . Therefore, the wiring on MVS machines differs slightly to the JAMMA standard. Super Gun Build. Kick 2 Player 2 6. You can click the photo for a closer view of the 56-pin edge connector. You will need either a new harness, or an adapter, or some other component in between to send to correct signals to the right pins on the PB 6 edge . From checking out pinouts on Jamma vs. I remember having some problems with the -5v line and that I disconnected it. gamelife00 Rugal's Thug. Power, ground, joysticks, buttons, and more. Hello. Adapters are often simply a Jamma fingerboard wired to a Mahjong edge connector, as described in the pinouts on the main page. 4 Slot, standard jamma? Thread starter Caris Nautilus; Start date Jul 17, 2001; C. Item Description: Safely converts the standard NeoGeo MVS system pinout to work correctly in a standard JAMMA type arcade cabinet. I picked up a jamma harness for my 4 player Blitz 99 machine off eBay. g. MVS is arcade hardware, they're made for pure RGB and Comp Sync straight to the monitor PCB. For example, 1942 and Ghosts n Goblins isn't JAMMA pinout. I am sure this has been covered before but I could use someone who knows more about sound circuits than I do to explain this to me :p So from my reading up and understanding of these things Jamma is a 8 Ohm Mono system as standard and MVS is a 4 ohm stereo (board depending). shilmover Well-known member. Pretty new to arcade hardware ownership, so hopefully I won't mangle questions or terminology too much. RetroArcade. Now, I realize that by default, when I plug the MVS into the Supergun, I'm either going to get garbled sound or no sound at all (I specifically get no sound) due to the rearranged pin outs and voltage differences between the two formats. Twine. JAMMA is a standard connector used on many arcade boards to simplify conversion of cabinets from one game to another. The Neo Geo board supports four buttons per player. Finally received the Sega JVS to Jamma converter yesterday, and spent some time trying any configuration I could think of. Re: MVS MV-1F motherboard: stereo via JAMMA?The wiring that connects the game's components - monitor, power supply, control panel, speaker, etc. I have a NEO GEO MVS 4 slot cabinet that I was hoping to play Jamma and Jamma+ games on. -Move 'Test Switch' wire from Pin 15 -> Pin M. Neo Geo Stereo wired board > MVS cab = works, with stereo audio JAMMA mono board > MVS cab = fried audio output IC. I will show the harness as well to demonstrate the orientation of the layout. -----------------. I know this is not really a tech support type question but Id. In this case, check the ground wires first. C. 2 Component side; 2 Contributions; 3 Sources; Pinout . I hook it up to my cabinet and I noticed that the buttons don't really work. You will need to follow the pinout from the Unibios chip to the MV-1C bios. A suspicious death, an upscale spiritual retreat, and a quartet of suspects with a motive for murder. Posts: 293 Joined: Sun Feb 19, 2012 9:32 am Location: United States. Large collectors will often accumulate a series of : adaptors for their games, all of which convert to a standard : pinout, usually JAMMA. The adapter basically just does that repinning for you. On my increasingly long list of unfinished projects, this is something I've been tinkering with for a while. Re: MVS MV-1F motherboard: stereo via JAMMA?I would connect the db15 pins corresponding to the tree kick buttons on positions 2, 5, and 8. MVS-2-25: MVS-4-25: MVS-U-33 Part1: MVS-U-33 Part2: MV25TA-0 & MV25UP-0 Japanese cabs Also covers the MV-6F PCB : Misc. #1. org. Reseating the harness fixes it for a bit and then it must loosen up or something and drops out again. 28 PIN UNKNOWN CONNECTOR on the arcade machine Sold side . Get it as soon as tue jul 20. 1,372. . 5mm jack connector for audio output (it will override the 8pin mini DIN audio output) Audio attenuation JAMMA (mono audio) or MVS (stereo audio) compatible Test and Service buttons Voltmeter 6-pin power connector Acrylic glass caseAs MVS pinouts are slightly different to JAMMA pinouts I need to make a little harness to enable me to use my 2 slot MVS Mobo with several of my JAMMA superguns (one of them being a Vogatek MKIV which I've just bought from IDCHAPPY). Its for the MV 1F board. Download. It can be easily connected to the JAMMA and the JVS, and you can easily play the original arcade games at home. An alternative to the RS, Namco and Konami boards you need to play Jamma PCB's in a JVS cab. I have read that nasty things happen if you plug a multi slot board into a standard JAMMA harness. I am a bit of an arcade noob so be gentle please. On my MV 1F board the "Z80 error" was caused by the connectivity between Z80 and Ram, like GadgetUK said. Designed to redirect SNK Neo Geo MVS multi slots PCB signals to work properly inside your JAMMA Cabinet or with a Supergun. 747. #2. The JAMMA wiring standard was introduced in 1985. How would a video encoder cause a board to reset though? Unless maybe the actual problem isnt the board resetting but maybe the encoder is flickering at a rate that resembles a reset maybe?So the supergun has input pins for button 5 & 6 to wire to the game PCB. SNK Neo Geo MVS. It should take both adapters to correct all the wiring differences, if that is how the pinouts are: Board -> Blue Elf adapter -> Jamma to MVS adapter -> cabinet harness If the test button works (brings up the test menu) then it sounds like it was fully converted. The I/O board I use to put my JVS systems on my jamma cabs is the Capcom Converter. I would also like to mention some caution when using an MVS board. . I know the pinouts for JAMMA really well. . 48in1. Fairly sure MVS and JAMMA pinouts have slight differences in their placement of the 'test' button. #1. This pinout is almost identical to the JAMMA standard and does not use any extra pins. I'm thinking of buying an MVS cab but didn't know how the new Jamma only releases would work in it. JAMMA (Japan Arcade Machine Manufacturers'<br />.