And I can only assume that the instruction manual for the Rev B board are incorrect. Check out the Downloads section for pinouts and manuals, and the Project section for information on modifying your MVS setup or Jamma harness. Frequently bought together. Those Jamma adapters are intended for running T&F or HyperSports in a typical 2 player Jamma cab, mapping the run/jump buttons to player 1 and 2 buttons 1,2, and 3. You will need to follow the pinout from the Unibios chip to the MV-1C bios. Power Supply Cord. There are several models of the Neo Geo arcade PCB, their main difference is the capability to use several cartridges at the same time to enable switching between them. I've tried cleaning and stretching the pins a bit, but no change. Where do I connect them on the jamma side. Push it and see what happens. There's a video GND on pin 10, and the key matrix is quite different. #1. Adapters are often simply a Jamma fingerboard wired to a Mahjong edge connector, as described in the pinouts on the main page. -- read more. 10 There are NO traces to connect the leads on the MVS boards where -5V would come in from a Jamma Harness. " If you are lucky, the wires will already be bundled with zip-ties into sensible groupings. Since Tekken is 2 buttons on top row, 2 buttons on bottom row. 5 mm stereo connector or the 8 pin mini-DIN if the 3. From what I understand, you might be able to just unplug your MVS board and hook up any JAMMA board. What do you need to have say a KOF 2003 Jamma Board work. I have already wired and tried the TEST and SERVICE buttons as recommended. I am a bit of an arcade noob so be gentle please. The differences between the JAMMA and MVS pinouts can be found here: JAMMA Vs MVS pinout. Hey hey, here's the deal. Parsec has a built-in NTSC video converter and RGB buffer chips that provide composite and s-video as well as RGB output. 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. Facebook Twitter Reddit Pinterest Tumblr WhatsApp Email Share Link. Standard jamma harness also used for the jamma 60in1 boards. You will need to follow the pinout from the Unibios chip to the MV-1C bios. This board can play one Neo Geo MVS cartridge at a time. 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. . Adapter has a 3 pin socket to simply plug in the Negatron (not shown). adding a test switch a MVS? Thread starter 7zark7; Start date Dec 4, 2001; 7. The Neo Geo board supports four buttons per player. . 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. Reactions: kikaso. A new thread has been started as the old one was getting a bit untidy. Arcade cabinets wired to the JAMMA standard can be made to play all games built to this standard, simply by installing the circuit boards for the new game. Downloads: Jamma vs. I've been using my CMVS on my old TV directly through RGB scart, and it worked perfectly, however after getting a new TV that doesn't have scart inputs, I thought getting an OSSC would do the trick. For six button games, buttons 1-3 are connected via the JAMMA edge. #2. I then bought NBA JAM TE from another member here. ChuChu Flamingo. . I just want to point out that this will also work for a neo geo mvs 1-slot board, which i am fairly sure uses the same pinout for its stereo. First off I bought a MVS to JAMMA converter and Jamma extension cable from Jammaboards. see here Another new guy question: I recently picked up TMNT and popped it in my 4 slot cab with a JAMMA->MVS adapter. There's no problem with it working when tekken 3 is plugged in and the pinout for the final fight and tekken game is the same regarding the player 1. from 102762105. On our map, a blue pin indicates a site with a confirmed location and photo. The JAMMA PCB to NeoGNeo-Geo MVS JAMMA Buttons Question. 6 pin - RGB + Sync input lead. Nov 14, 2019. Live (or Line), Neutral, and Ground. What you can't do is throw JAMMA or non-MVS boards into the mix without an. If the cabinet is not wired for MVS you can potentially damage your board unless the MVS board has a specific JAMMA edge connector. The acronym JAMMA stands for Japan Amusement Machine and Marketing Association. I use the neogeo pinout for all my console to jamma conversions so the same format is on every console. What's new. Would the same be true for the reverse (JAMMA in a MVS cab)? I modified the wiring diagram from HardMVS to highlight the differences. Female pins will be found on the harness, and make pins on the board’s header. JAMMA Standard Pinout. . Posted March 27, 2008. Connect the above pins to the input on the video encoder. They had to change a pin inorder to fit the game select button onto the connector. According to the Manual the Jamma pin connectors have pins for both +12V and +5V connections. Out of stock. Restoration discussion, help on…Step 2: The Conversion. I know the pinouts for JAMMA really well. Safely converts the standard NeoGeo MVS system pinout to work correctly in a standard JAMMA type arcade cabinet. Will be used with MVS one slot. NH, USA. MVS pinouts. It is a JAMMA to MVS adapter. 1 Sold side; 1. The adapter basically just does that repinning for you. All NeoGeo MVS units are almost fully JAMMA compatible; however, theyHey all, So I recently picked up a JAMMA cabinet. Buttons 1 and 2 are JAMMA connector and buttons 3 and 4 are actually mapped to 4 and 5 on the kick connector respectively. More sharing options. Part Number: 40009003-CRP. MVS and Jamma pinouts are slightly different, so you'll need change the pinout each time you switch between the two. Play your JAMMA boards in your MVS multi slot cabinet. T are a few minor but important differences between the NeoGeo MVS and regular JAMMA pinouts. the Neo Geo MVS has it's own standard based in JAMMA, but uses a couple of those Empty pins for the fourth button and the select game button. . On a MULTISLOT system game selecting is only available during the attract mode sequence. It has been corrected and updated. It’s almost entirely plug and play, with only two. the Neo Geo MVS has it's own standard based in JAMMA, but uses a couple of those Empty pins for the fourth button and the select game button. Jan 7, 2019. 2 pin - 5v power lead. plugging a xxx-in-1 into a jamma harness results in "BUTTON6" being pressed all the time. For example, the kick harness for Street Fighter 2 is incompatible with the kick harness used for Street Fighter Alpha. The JAMMA connector is a 3. It is also 100% compatible with 15Khz RGB video and offers Hi-Fi Stereo sound. With this great PC2 JAMMA adapter you will be able to connect your PC to a Jamma Arcade Machine without having to modify the inner part nor the original hardware of your Arcade Cabinet. Download. Apparently I can fry the thing if I just use it directly since the voltage is too high. 5. Kwisatz New member. Honolulu, HI. . 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. 基板のコネクタ部分を見てGNDや電源など見た目で分かり易い端子の位置を. Video Ground - 14. 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. It can be easily connected to the JAMMA and the JVS, and you can easily play the original arcade games at home. You will also need to use the Button 5, 6, and Exit button wiring that is part of the JAMMA+ harness. Re: Jamma Adapter PCB Series. RGB to Component, Video & S-video encoder board. Pretty sure I have a similar bootleg, or at least a Time Pilot bootleg with the same pinout as the one listed on Mike's Arcade. com -> JAMMA Standard Connector <- Name Of Game: N/A Notes: Not all games will use all pins, and some kits may have extra connectors for. JAMMA, JAMMA+, and “CHAMMA” compatible; Built-in voltmeter (selectable +5 V/+12 V). I've read before that running a MVS board in a JAMMA wired cabinet can overload the amp and burn it out. Forums. 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. I was going to create an adapter (modify a jamma harness) to run the 4 Slot PCB in the Jamma Cabinet. It's my understanding from reading the biggest issue is the sound amp on. Unlike the JAMMA pinout standard, kick harnesses are not a uniform standard. The majority of games use a subset of this pinout. Jun 15, 2004 #1 Please forgive me if this is standard knowledge but I am totally lost . OP. MVS Jamma pinout Click to expand. I bought a MKII converted cab last week. This isn't really a 4-slot specific issue except to say the pinout is a bit more dense and complicated. 6 MB File. 96 mm) card-edge connector. The JAMMA PCB to NeoGNeo Geo Jamma to SCART pinout problem. All I had to do was rewire the 4th button from the kick harness to the JAMMA harness to make the 4th button work. MVS is arcade hardware, they're made for pure RGB and Comp Sync straight to the monitor PCB. The Sega 2L12B Adapter, also known as Sega Jamma/Jamma+ Adapter, is an adapter used to connect the Sega 2 lever 12 buttons panels to Jamma+ games. Mono sound out to the JAMMA edge, and amplified Stereo sound out to CN1. SF2 or MK there is too much hassle involved from my perspective (different harnesses, different button layouts) especially given. While I await repairs to my MVS 4-slot board I have seen some examples of collectors playing there MVS carts on a jamma super gun. Nov 1, 2003. . . The JAMMA harness in the blast city only supports 3 buttons per player. . net. Jep, footprint for the video pinheader is 2. shilmover Well-known member. Joined. . Sep 5, 2018. Taito 2-3 Layer Space Invaders Parts I & II Pinouts [English] Darryl Rhea. NEO-GEO. to the arcade’s main board. Look man, I wasn't trying to be a scrub or anything. It's interesting that the Golden TEE folks claim the game is JAMMA, but it clearly is not. MVS boards. certain mvs models are just regular jamma pinout and stereo sound can be taken out of either a headphone jack or stereo pins. Some months ago, I've managed to get a MVS cabinet in a American surplus store somewhere in the town. HNG Rev 2 pinout with alternate switch config. Jul 27, 2016. I've read before that running a MVS board in a JAMMA wired cabinet. ) unlike the MV-1C as seen below. Pinout for JAMMA Arcade game systems. I was just looking at your pictures of the quick disconnects and that made me think back to why I didn't use those on my power connections. Another way to do it is to wire for JAMMA(4 button) output and use an adapter for a multi-slot MVS. Anyhow, if you want details about this, you. Controller Inputs: x2 Sega Saturn. Neo Geo Stereo wired board > JAMMA cab = works, but only one channel of audio. JAMMA is a standard connector used on many arcade boards to simplify conversion of cabinets from one game to another. They are both wired to a different pinout. For four button games, buttons 1-4 are connected via the JAMMA edge. Jamma Harness Wiring Diagram. The majority of games use a subset of this pinout. 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. 5 mm stereo connector is not. Converting a JAMMA wired cabinet to CHAMMA is really just a two-step process. . Dipswitch for activating or disactivating Buttons 4,5 and 6 through Jamma or kick harness. JAMMA is a standard for connecting arcade PCBs to an arcade cabinet (power, video, joystick/button input). G. In this case, check the ground wires first. Step 3: The JAMMA Harness. Should I just connect that yellow button to "COIN 2" and cut the wires (including. com. 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). the general idea is to use a standard SuperGun to run the game, so we'll need to wire the controls to the Supergun's controller port. Title Strip Creator. MVS: Jamma connector pinout 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,. 3A would be fine probably for the multislots, 2A for single slots. The pinout is slightly different than regular Mahjong pinout. 25. All NeoGeo MVS units are almost fully JAMMA compatible; however, theyLike instead of four +5 wires it has 2 ect and I have run into games that are jamma but for some reason won't work unless it has power to all the pins in the power section. I used this tutorial from Jamma-nation to check the 6116 SRAM Pinout. It comes with: JJ-CBOX v2 Unit + power cord. If the board is labeled "JAMMA" then it's JAMMA. . 21K subscribers in the arcade community. Nov 3, 2008. Wiring Harness for MVS-4-25. JAMMA. 8 MB File. ect. Neo Geo Tech Support. SELECT Sets the Select Game button to be either activated with P1 Down or P1 Button 1 (A). The JAMMA connector is a . All NeoGeo MVS units are almost fully JAMMA compatible; however, they have a small twist in their pinout scheme. For the 412 in 1 Vertical Multigame board to work properly, you will need to remove them on both sides. #4. Hopefully the arcade generation will spread to the younger kids of today. Solder Side Parts Side Ground A 1 Ground Ground B 2 Ground +5V C 3 +5V +5V D 4 +5V -5V E 5 -5V +12V F 6 +12V Key H 7 Key Meter 2 J 8. I'm curious how others have handled this aspect of it. Welcome to Jamma-Nation-X. The multi slot units are different in, you guessed it, sound. Typically 18 is cheaper and still safe so it will be that. Case in point: With my Hyper 64 Rev 2 board, I set the power to Neo, but the sound to JAMMA. While the final game, Samarai Shodown 5, was recently released in 2004, the support of fans should keep the Neo going strong. Joined Sep 30, 2018 Messages 1,000 Reaction score 1,340 Location CA Jan 18, 2021Audio 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. Don't hold me to that. MVS and Jamma pinouts are slightly different, so you'll need change the pinout each time you switch between the two. The different placement of the service button on the MVS jamma harness gave me a headache when I built my supergun too. Location: Alingsås, Sweden. I decided to get the content and bring it back online as it is an amazing knowledge base about Neo. Source: diagramweb. Enjoy. (solder side of the 60. The version of the CBOX I decided on has all of the consolized Neo Geo MVS features of the previous iterations with one new feature: it can also play JAMMA PCBs. . Remember to connect the center pin on. I recently got a 4 Slot PCB, which I understand is not Jamma. V3. Mar 14, 2001 #1. £ 1. PCB Pinouts and DIPs. #1. However, I was considering the following idea: Getting a: 1. 1. #3. The multi slot units are different in, you guessed it, sound. I started to plug everything in but noticed nothing fit correctly, everything was slightly off. Michigan. Skip to content image/svg+xml Search. Os puede venir muy bien si queréis montaros una bart. - 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. . Posts: 293 Joined: Sun Feb 19, 2012 9:32 am Location: United States. The Mixed Bag. Forums. ChuChu Flamingo. I've read before that running a MVS board in a JAMMA wired cabinet can overload the amp and burn it out. I was wondering where I could get these parts and hopefully get some information on building such a machine. This was designed to make board changes easy, just take out the old game and plug in the new. x2 Sigma. +5v - From Power Supply. Does this mean I can play some if not. Supergun is what we call a device that connects an arcade PCB to a standard TV or monitor, speakers and game controllers. ) unlike the MV-1C as seen below. 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. However, when I play a SNK cartridge in the 2-slot everything plays fine. PIN #2. 1 Pinout. . Caris Nautilus Guest. PCB Rebuild Kits. If you trace this on an actual cart, you will see that this is actually "A0" (A0 - A18). I tried doing a search in this forum for "MVS STEREO" and "MVS Jamma Wiring" and I didn't find anything helpful. PIN #A. Some games (Street Fighter, Mortal Kombat, etc) which need extra buttons have extra connectors for these additional controls. For the fourth button I have my stick kick buttons wired into usb ports so I simply wired the 4th button into the low. - wired up the exit game button to coin in. not necessarily a problem in games that. Second, wire your sixth action button to the pin 27 location previously used by the relocated ground wire. ARCANIAC. If you are wiring your cabinet, at some point you will have to know what every wire does. The JAMMA wiring standard was introduced in 1985. Features three different action buttons layouts, amplified mono. #1. In this video, I will show how to read a jamma harness pinout. 5 mm stereo connector or the 8 pin mini-DIN if the 3. Item Description: Safely converts the standard NeoGeo MVS system pinout to work correctly in a standard JAMMA type arcade cabinet. 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. 187 inch (3. $1250. RetroArcade. MVS MV1F Corrosion Fix : May 11 2012 : MVS MV1F 6116 SRAM Pinout :The one Xian Xi posted at Paradise Arcade Shop is to convert the button and ground issues mentioned above for the Blue Elf Boards to standard jamma. This adapter features button remapping, different. Twine. Originally came with the Namco Cyber Lead cabinet. In general there will be 3 conductors for single phase AC. MVS edge connectors aren't fully JAMMA compliant depending on the model of the board. The only information available on the Internets is the two pinouts I posted. For Games. 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. Beginner. I recently got a 4 Slot PCB, which I understand is not Jamma. . The pinouts are slightly different between the JAMMA standard and Neo Geo MVS standard. I've tried cleaning and stretching the pins a bit, but no change. 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. Joined Oct 28, 2007 Messages 5,070 Reaction score 570. Sadly I couldn’t send buttons 4 and 5 through CN3 on the JVS to Jamma board. Posted the pinouts for the Control Panel Molex connectors in the Downloads section. All orders above $250 come with FREE shipping. Take the wires from the output of the encoder and connect those to your Video jacks. Thread starter Nostromo; Start date Jul 16, 2007; N. MVS. And a yellow pin is an unconfirmed location – it’s. NAFTA 8ft. But just remember if you use it for MVS PCBs that the test switch will not function since it's expecting a JAMMA pinout. #2. 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. If you don't plan on ever swapping your MVS board out, then there's no need. The adapter I am using is the JAMMA extension harness from Twisted Quarter on eBay right now. Posts: 286 Joined: Sun Feb 19, 2012 9:32 am Location: United States. 60 MB. New posts Search forums. A pandora’s box( or multi game board with the same pinout) in your neo geo multislot game cabinet. Standard JAMMA. There is one question about the pinout: The jamma has 5 pins: R, G, B, V-Ground, Video-SYNC. Joined Jan 16, 2012 Posts 223. I've replicated the fix on two boards so I know it's the harness. PDF Author: Briggs Subject: hardMVS Created. Using a JAMMA harness inside an MVS cab to a K7193 monitor I'm not entirely sure what I'm doing wrong, but here's the scenario: I have an MVS cab with a 25" WG K7193, wired up to the MVS harness. Posts. MVS Canada is Canada’s Highest Rated Car Shipping Company and one of Canada’s largest car shipping brokers with over 30 years of experience in car shipping. You can click the photo for a closer view of the 56-pin edge connector. 1, 4 and 7 i would solder the jamma pins corresponding to the chamma kicks (jamma 25,26 and 27)Remove the connectors from the switch, and put them onto a different switch that you know works. If the cabinet is not wired for MVS you can potentially damage your board unless the MVS board has a specific JAMMA edge connector. Not for use with single slot Neo. If you don't plan on ever swapping your MVS board out, then there's no need. 747. I would like to try building an MVS system from the ground up, but I do not know where to get the boards, displays, etc. The Neo-Geo MVS cabinets (2,4,and 6-slot) use a pinout very similar to the JAMMA pinouts. Association) is a standard 56-way connector used on many arcade<br />. 28 PIN UNKNOWN CONNECTOR on the arcade machine Sold side . JAMMA (Japan Arcade Machine Manufacturers'<br />. It is also possible to alter the wiring of this connector so it also act as a button remapper. 1-slot boards have jamma pinouts, so your cab maybe jamma also. 12,514. JVS is incompatible with USB devices because it does not use the USB signaling standard. com). For four button games, buttons 1-4 are connected via the JAMMA edge. MVS MV1F Corrosion Fix : May 11 2012 : MVS MV1F 6116 SRAM Pinout : The one Xian Xi posted at Paradise Arcade Shop is to convert the button and ground issues mentioned above for the Blue Elf Boards to standard jamma. The JAMMA standard has provisions for a Trackball in place of the normal Joystick connections, but Golden Tee series boards use a separate trackball harness. 14. Jamma is a standard but for games that use extra buttons or a unique control system like a 49 way joystick, there is extra wiring. It's not necessary, but it's definitely convenient if you plan to switch out boards a lot. Namco JVS / JAMMA Adapter. I've replicated the fix on two boards so I know it's the harness. Item Description: The NeoGeo MVS (Multislot) is not a fully JAMMA compatible system. 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. PDF file. -Add wires at Pin d & 27 for the Select Down/Up. This site was created for the arcade gamer in mind. 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. Item Description: The NeoGeo MVS (Multislot) is not a fully JAMMA compatible system. I'm not talking about a neo, I'm talking about a MKII cabinet that was converted to Capcom vs SNK. SNK NEO GEO MVS (MV 2 / 4 / 6) Solder Side Parts Side Ground A 1 Ground Ground B 2 Ground +5 Volts C 3 +5 Volts. Golden TEE Pinout. -Supports a voltmeter as well as the Negatron for adding -5v to your JAMMA board. On my MV 1F board the "Z80 error" was caused by the connectivity between Z80 and Ram, like GadgetUK said. ) 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. My Jamma cab has two speakers, and I am wondering if I just need to rewire the speakers when they connect to the jamma. SNK NEO GEO MVS to JAMMA Adapter with button remapper and line level Stereo sound out. MV-1FZ RGB and Controller Pinout 4093 downloads 333. PIN #B. Jamma is a standard, so if you buy a jamma-compatible cabinet, you will be able to plug in any jamma board that you want (that includes a MVS motherboard). Players 3 and 4 (joysticks and buttons 1-4, start, coin) are connected via the Hirose DF1B connector. Compatible with SNK NEO GEO MVS multi slots boards. Adding RGB To A CRT. bencao74 wrote: hehe, you identified the most complicated one among these adapters at first sight. Your cabinet may only have 2 buttons for each. ) unlike the MV-1C as seen below. New media New comments Search media. JAMMA / MVS ┏━━━━━━━━━━━━━━━━━┳━━━━━━━━━━━━━━━━━┓ ┃GND A┃1 GND┃ ┃GND B┃2 GND┃ ┃+5V C┃3 +5v┃ ┃+5v D┃4 +5v┃ ┃ E┃5 ┃ ┃+12v F┃6 +12v┃ ┃T PIECE HERE H┃7 T PIECE HERE┃ ┃ J┃8 ┃ ┃ K┃9 ┃ ┃Speaker. 10 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 . Ground wire to the ground loop and the appropriate JAMMA wire to the normally open terminal as illustrated. Link to comment Share on other sites. All of this passes through the cabinet I/O board. 2 Designed to redirect SNK Neo Geo MVS multi slots PCB signals to work properly in a JAMMA cabinet or with a Supergun. JAMMA Conversion Pinout Class. New posts New media New media comments New resources Latest activity. Jul 13, 2009. 7) mvs preserves the income data of max 8 games even. New media New comments Search media. . What you can't do is throw JAMMA or non-MVS boards into the mix without an adapter. The MV-1B has a pin for pin connection (1-1, 2-2, 3-3, etc. or an MVS mobo in a JAMMA cabinet is problematic because of the. Neo Geo Stereo wired board > MVS cab = works, with stereo audio JAMMA mono board > MVS cab = fried audio output IC. This means you can use the game select buttons. This pinout is almost identical to the JAMMA standard and does not use any extra pins. On pin 3 it needs composite video, but I can't find that on any pinouts for the jamma connector. There is no distortion or loss of signal quality and if there is, it's very minor. .