A crisscross ground layout with all double connections made into a single pad. So I no longer need this PCB. If you choose to use the existing JAMMA wiring, you will need to make some modifications. I just soldered female spade connectors onto my JAMMA harness wires, then attached those right to the buttons and joysticks on my Dynamo. Doing so may damage. I started to plug everything in but noticed nothing fit correctly, everything was slightly off. – Hook Ups for the 6 Player Buttons Include Wiring for Each of the 6 Player Button Lamps. Hundreds of used Molex, Amp, etc. Jamma Wiring Harness Extension 100cm 6 buttons x player. #2. 1 KB · Views: 9 Last edited: Mar 10, 2016. 985 Erve Williams Road Moultrie, GA. They plug into the original harness and seamlessly allow the use of the board in a dedicated cabinet. 100 header wiring harness. All wiring uses 22AWG (22AWG is enough for Jamma PCB ) ,Cheaper harnesses will only use 24AWG or 26AWG or even (Marked with 22AWG but actually with 24 or 26 AWG quality ) The problem is if the resistance of wire is too high, it can cause a significant power loss before the DC voltages even reach the JAMMA PCB!Author. Right - Games. 156in (3. Currently, it's hooked up to a. The power comes from the standard JAMMA harness (which gets it from your switcher inside your cabinet. The JAMMA standard was invented in 1985; any game older than this will not be JAMMA. Pinouts 12v DC version Wiring harness pinout . To be able to bring up the exit game menu in free play mode, you will need to make sure you have a button wired to the pause wire on the JAMMA harness. Used on many arcade boards to simplify conversion of game cabinets, comes with color-coded connections for, 2 players, power, coin doors, test, service, video, and sound. 56 pin (28. Description 56 pin (2x28 pin) JAMMA harness for use with existing cabinets with original JAMMA boards, or for use in new arcade builds using a multicade board. Starting with the ground pad at Pac 1/2, the first wire goes to the Jamma pad e/f while the second wire goes to Jamma pad A/B. Multicade Trackball/Joystick Multigame wiring harness. So I no longer need this PCB. Product Information New Premium Standard 56 pin Jamma connector used on many arcade boards to simplify conversion of game cabinets. No need for an adapter (wall wart) to plug into the Raspberry Pi 3b+. The top 2 wires are run to the meter plug below. Standard JAMMA. Jul 10, 2020. Yes, l'm trying to learn how to hook one of these up. This product is suitable for: Joysticks with 4. So, on your cab, you have some kinda home made kick harness going directly to the panel?Official pcb pin-out information may be available in the manual: Mortal Kombat 2 Operations Manual - 16-40029-101 80 Pages, 2. I started to plug everything in but noticed nothing fit correctly, everything was slightly off. Multi-slot boards, use a different pinout based on Jamma commonly refered as 'MVS pinout', this has a couple of changes mainly because of the different nature of the boards, like having Stereo and the need to change the currently playing game title by pressing the 'SELECT' button. <br />. Add to Cart. + BLEE Classical Arcade Video Game 60 in 1 PCB Jamma Board for CGA VGA Output. Connects using a standard JAMMA Connector. Some games (Street Fighter, Mortal Kombat, etc) which need extra buttons have extra connectors for these additional controls. Whirlwind - PC to JAMMA Arcade Cabinet Interface. Michigan. Once you have these items, then you will need to follow the instructions given with your adapter, but its really as simple as wiring the jamma harness pinout wires to the +5, +12,-5, power, coin door, sound, monitor signals & sync, and finally grounds of the Power supply. Adapters Accessories Fingerboards 'X' to JAMMA Cabinet. 250" Insulated. I know where the guns plug in, but have no idea which wires go to the buttons (just need P1 and P2 start) Looking at the Pinout for a JAMMA connector, there is one wire coming off the connector for the buttons, where the buttons themselves have two. ---- Used. Some games (Street Fighter, Mortal Kombat, etc) which need extra buttons have extra connectors for these additional controls. JAMMA Pinout. My very first Instructable was about an interface (Jammarduino) to connect a genuine arcade cabinet with JAMMA wiring to a PC. Jamma edge connection with. Please reference the pinout below. Solder a wire from your Male DB9 connector to your Controller port. Your 60 in 1 board can be connected to a standard 4 pin power connector and does not have to receive power via the jamma connector. It's interesting that the Golden TEE folks claim the game is JAMMA, but it clearly is not. The JAMMA connector is loaded with connectivity options! Power, ground, joysticks, buttons, and more. but never never to the jamma. item 7 Jamma Trackball Interface Wiring Harness for 3 Inch Trackball for 412-in-1 PCBs Jamma Trackball Interface Wiring Harness for 3 Inch Trackball for 412-in-1 PCBs. Much easier than it might sound. There's only one 9-pin molex plug (J3 in pic) and what's in it currently looks like it's self-contained and doesn't go anywhere so I'm questioning whether it'll work. coreyr. There are 28 pins per side (key included), 56 total. You have to confirm every little thing, because there's no such thing as a standard orientation for what goes where wiring molex connectors (unless you make your own orientation and do the same thing for every cab). ** JAMMA Trackball pinout differences, used. 50. Gameplay required 6 buttons per player rather than the standard 3. #1. ) 2) Remove all existing game harnesses (we suggest using New Jamma Harnesses (NOT contained in the kit) to ensure reliability). Standard 56 pin JAMMA cable. /UniSystem Partial Wiring Harness. Details Wishlist Nintendo Vs. if u are using a putter then the ac for it also. ★Jamma Harness with 2x28pins 56 Pin connector that can be used for standard Jamma Arcade cabinet (Machines) and PCBs. The name JAMMA stands for "Japan Amusement Machinery Manufacturers Association," and it became a de facto standard sometime in the diagramweb. JAMMA Harness. M. I plug in a verified working xmen PCB, but I get no. 96mm pitch-edge connector (male on game board). Once you have these items, then you will need to follow the instructions given with your adapter, but its really as simple as wiring the jamma harness pinout wires to the +5, +12,-5, power, coin door, sound,. ★★★Standard Jamma connector, contains 5 6 PIN Interface Cabinet,fast connection to the jamma board and joystick or buttons. 187" crimped terminals and is ideal as a replacement for existing Jamma machines/arcade machine projects. Mortal_Kombat 1 Kit T-Unit CPU - 16-43275-101-B 74 Pages, 3. There are two wires coming from each coin counter. Aero city seems to be totally different where the harness just goes straight to the control panel directly. Is the Namco 246 (Tekken 4 in my case) the same as Jamma, or is it like the system 32 where you would need a kick harness to play a standard jamma board? I was wondering cause I recently purchased a Double Dragon Board (my 3rd one) and would like to hook it up in a machine to play. Auxiliary Cable (P/N 03-0052) Connections AKA Kick Harness The current pinout doesn't really matter as you will be replacing all that with jamma wiring. Qbert wiring harness to jamma Thread starter howie2673; Start date May 17, 2020; howie2673 Active member. ★★★28x2 Pin Jamma Wiring Harness, it is used for Arcade Machine Video Game Consoles Pandora Box 4 5 6 Game to simplify conversion of game cabinets. The wiring inside the Supergun for the kick harness is very simple. They were responsive to all of my questions and concerns, and. Thread starter ShmengeTravel; Start date Jan 19, 2007; S. I like to make my harness well rounded so I make sure that the wires are there for the extra buttons that the Neo Geo and Atomiswave uses which are pins 25, 26, Ac and Ad. This video shows how a took a new product called the MiSTerCade and interfaced the MiSTer into a real arcade machine. 28 pins on each side of the Jamma harness. This JAMMA harness is good quality and as the other review states, easy to read and all in English. 99 JAMMA vs "CHAMMA" pinout. $1. Something to hook the Raspberry Pi to JAMMA. com). The Golden Tee pinouts redefined many of the common pin meanings. OP. Golden TEE Pinout. It was blitz 99 and nba jam, but similar situation where JAMMA was used for 1p/2p and the kick harnesses were used for 3p/4p. Wiring Harness Length (in): 12-1/2 Inch. Standardizing. Both ground connections are wired into the harness. In my lack of due diligence, I purchased a harness meant for a Pandora’s box (despite the item title saying otherwise). #3. All connections to your joystick and push button micro-switches are included and already fully assembled. Please note that this adapter is not suitable for gambling and redemption environments. Complete Multi-Williams upright multigame wiring harness. Pins 1-6, 27, 28, A-F, e, and f get wired to your switching power supply appropriately. pdf), Text File. ttooddddyy PNG FTW, Joined Nov 29, 2001 Posts 8,335. #1. Rocky Mount, Virginia. When I plugged in the PB I had no button controls and it kept giving me an intermittent pop as. Wiring Harness Length (in): 12 Inch. reason I say bump the power some is the adapter you are using may have a little tighter draw down and bump the power to overcome it. Finally received the Sega JVS to Jamma converter yesterday, and spent some time trying any configuration I could think of. The majority of games use a subset of this pinout. Product Details. The Arpicade will run on all standard JAMMA harness cabs. Before the JAMMA standard, most arcade PCBs, wiring harnesses, and power supplies were custom-built. gif. The wires are all hand soldered through eye-loops to the high quality 56-pin edge connector, and then are. #1. This is incompatible with the JAMMA standard due to pin 27. Turns out that he'd listed it at $30 on his main parts page but had raised the price on other pages and missed the reference. Way overdue, but I'm happy to announce that the first run of my JAMMA extension harness is ready! The harness costs 70 USD. See moreThe JAMMA wiring harness may or may not have a key pin at location H/7. When I first put it in the dedicated MP, I had no sound. Nos Midway 4 Player Jamma Wiring Harness PARTS ARCADE video GAME Part Fx1. Click Here for wiring diagrams and manuals! UPC: 670541220467 Warranty: 90 Day DOA exchange warranty onlyInstallation of this product requires professional electronic. If you. If that doesn't work, get another board. I picked up a 4 player arcade called Vendetta and it came with a Wells Gardner 25K7191 monitor but no button or joysticks and the Jamma harness is missing. Re: Wiring 60 in 1 and LCD. The Pandora Box CX 2800 in 1 JAMMA supports CGA video output at 15Khz and 384x224 , VGA at 640x480 and HDMI at 1280x720 resolution. The two lugs on top of the transformer go to the AC input on the monitor. net Rating: % positive. us UPC: 670541220443 Jamma 60-in-1 PCB, iCade, Arcade Multigame, Multicade board, JAMMA, Jamma PCB,. SKU: JAMMA-H1. PC to Jamma USB Wiring Diagram. Area 51 Site 4 - CPU to Jamit power harness pinout. 99 $ 14 . us Jamma Board Standard Cabinet US Wiring Harness Loom for Jamma 60-in-1 PCB Board. C $89. The vast majority of arcade games made from 1986 until 1998 use this wiring harness, although some games will have an additional harness as well (they are usually refered to as JAMMA+, although "JAMMA+" is not a. Media. See photo for my finished setup. $4899. I really don't think it really needs an schematic. JAMMA boards that require this extra harness are referred to as JAMMA+ or. State: Vic. Some JAMMA games used player 1's up,down,right,and left pins for trackball input, most had a seperate connector on the game PCB for it. 31768. Used on many original and aftermarket arcade video game PC boards to connect to power supply and game hardware (joysticks. Hey folks. Right + 4. Pull another spare one from the other part of the harness and insert it back in the bad ones position. Everything works except the "tilt" switch on the coin door. 95. Voltage Reg. 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. I wold just cut off any connectors that don't work and get the correct ones. As RayB said a PC power supply and your. The board was shipped from factory with an audio fix consisting of 2 jumper wires, going through. It just connects things to each other. PC to Jamma board that will allow us to connect the controls, video and sound of our PC to an original JAMMA Arcade Machine without the need to modify anything. > Includes -5v power line for older style boards> Includes two Coin Meeter lines for Coin Counter 1 and 2 > Designed with. But for those who already have a JAMMA cabinet and looking to not re-wire anything, you can get a nifty adapter from JammaNationX called. #1 Does anyone know where I can find an adapter for my qbert pcb to jamma or a harness in general for the game . Also fits: 619-IN-1, 750-IN-1 and 850-IN-1 Game Elf boards. Custom Chips/Daughter PCBs. 7m -. Product Information Jamma wiring harness english stickers are hear!Product Features: Great guide for new builders, assembly, and troubleshooting Jamma system connections. Also fits: 619-IN-1, 750-IN-1 and 850-IN-1 Game Elf boards. I will show the harness as well to demonstrate the orientation of the layout. With these great Jamma multi-pinout connector-headers you can replace the header of your Jamma harness. The AC line current is connected to the outside lugs. If that doesn't work then make sure that your JAMMA harness matches the pinout for the Elf board and specifically that pin 27 on solder and parts side is NOT wired to ground. the JAMMA harness has five video output wires: Pin 12 - red N - green 13 - blue 14 - ground P - sync The Electrohome has 9 video input pins: Pin 6 - red 5 - green 4 - blue 3 - ground 2 - positive vertical sync 1 - positive horizontal sync 3 - ground 2 - negative. Which is the other wire?I'm a bit confused. Wiring the Jamma Harness First thing to do is inspect your Jamma harness. This pinout class is compatible with many Sega games from about 1985 to the early 1990. 9 MB File. In Arcadexpress we are specialists in providing them and we. ★★★28x2 Pin Jamma Wiring Harness, it is used for Arcade Machine Video Game Consoles Pandora Box 4 5 6 Game to simplify conversion of game cabinets. Standard JAMMA. I have the four wires coming from the harness for 2nd player up-down-left-right controls isolated. The pins of this Board uses those pins for action button 6. Item Includes:1 - JAMMA Extender Harness UPC: 765857429540SP: Jamma Board, Wiring Harness, Jamma 60-in-1 PCB board Wiring Harness, Jamma Harness, Jamma 60-in1, Jamma 60-in-1 PCB, Jamma 302-i. Ground wire to the ground loop and the appropriate JAMMA wire to the normally open terminal as illustrated. The original harness is pretty simple to hook up. of course unless u want a alot of smoke and a ball of fire. boards to simplify conversion of cabinets from one game to another. Guessing that's the aux/kick harness for buttons 5 & 6. The Pi2Jamma has aextender Jamma Interface with 6 buttons per player plus option for Chamma (jamma pinout) . Your green wire (which is ground) gets connected to. 22/44 PIN EDGE CONNECTOR MAKE YOUR OWN JAMMA HARNESS. Instead you must wire in your own monitor connector to the Jamma Harness' CGA video output wiring. Contact us: 1-229-941-2506 M-F 8:30 AM to 4:30 PM. I picked up a jamma harness for my 4 player Blitz 99 machine off eBay. Centipede JAMMA Adapter. The Jamma harness follows a specific pinout diagram, which determines the arrangement of wires and their corresponding functions. RetroArcade. Nov 5, 2008. 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. However, I was considering the following idea: Getting a: 1. This harness includes: 56 pin JAMMA edge connector with key. 187" crimped terminals and is ideal as a replacement for existing Jamma machines/arcade machine projects. New media New comments Search media. Now let's move the test input pin from Jamma M to Jamma 15. . Wiring diagram Below is the basic pinout diagram for jamma pcb, you can use this as reference when you are connecting the wire/ harness. For example, the video output on a JAMMA harness is located at pins 12, 13, N and P. The ground pad at Pac 21/22 also splits with one wire going to Jamma pad A/B while the second wire goes to Jamma pad e/f. Brand New. If you cannot use the existing wiring, then remove all the old wiring from the control panel, test switches, coin door, speakers, and PCB power. The difference between the microswitches for the coin door vs microswitches for buttons/joysticks, is that the coin door switches need to be hooked NC = Normally Closed. 35. Without doubt, Bob's JAMMA extension harness is the best and he's back to selling them. When properly seated to the pcb, the connectors of the edge connector will align with the pinout fingers of the pcb, and your game will play. The original harness is pretty simple to hook up. On the Mr. Sep 6, 2019. The Golden Tee pinouts redefined many of the common pin meanings. Product Description. Thought some other people might find it useful too. Location. $19. . demogo Well-known member. I'm wondering if anyone can confirm the Super Jamma harness from Twisted Quarter can be used with an Atari power supply. Details Wishlist. This case is only compatible with 56-pin Jamma cables and Jamma extension cables. £ 1. Currently runs fine with my SF II Arcade 1up with the USB encoders. us. 50. $24. 26 Inch Arcade Game LED Monitor, Jamma MAME and Cocktail game cabinets, Direct tube Replacement. It was the proof of concept of a cheap DIY Arcade interface board with even more features than commercial products. Archived from groups: rec. III 、 JAMMA Wire Map PS: 1. The above shows the jamma connections for power and all others. Joined Dec 7, 2019. Power, ground, joysticks, buttons, and more. Comparing the wiring to the wire guide it’s the same thing, things are just a bit out of place. 2. CNI 02 / 10-Pin AKA Kick Harness *With these great Jamma multi-pinout connector-headers you can replace the header of your Jamma harness. In this video, I will show how to read a jamma harness pinout. Please see below for the full games list (2800 games in total). New JAMMA wiring, ideal for making or re-connecting a terminal. The only change was removing the Joust wiring, control panel and the JROK adapter, then installing the multi Williams control panel and wiring harness. Break connectors are important to the CP & coin door, so that they may easily be removed if the need arises. $12. Some minor modifications may still be needed to take full benefit of all the options available to you with the UltraCade Multi-Game System. TwistedQuarter. Useful pair of stickers to fit on to your Jamma connectors, labels pin numbers and connections for both sides. Capcom CPS2 - CPS3 Kick Harness to Microswitches / Buttons. JAMMA Card Edge Connector 56-Pin Solder Socket. I will show the harness as well to demonstrate the orientation of the layout. 95. Some games<br />. Step 4: Wiring the new buttons. Price $399. New Full Jamma Plus+ cabinet wring Harness Features:> Connect 2 sets of controls for a 3 sided cocktail cabinet. Pinball Repair Tips about issues specifically related to pinball machines. bump it to 5. It even has the pinouts. Power Supply For Cherry Master or Pot O Gold: $45. Reading the game manual is probably the only way to tell. Also fits: 619-IN-1, 750-IN-1 and 850-IN-1 Game Elf boards. +5 volt & +12 volt Jamma harness wiring questions. 2 weeks later, I had no video. Second, wire your sixth action button to the pin 27 location previously used by the relocated ground wire. Student. These sites are great for finding out about certain people you may not want to deal with in the arcade hobby. Original price 1299 – Original price 1299. Doing so may damage your PCB irreparably. Connector the power cable to P9 on the GBS-8220 converter PCB. Regular JAMMA Pinout -. Mortal_Kombat 1 Kit T-Unit CPU - 16-43275-101-B 74 Pages, 3. MiSTerCade: Installation and Overview. The majority of games use a subset of this pinout. Solder a wire from your Male DB9 connector to your Controller port. 5 Foot Length ; All wiring uses 22AWG ,Cheaper harnesses will only use 24AWG or 26AWG. White wire on one side Black on the other. I will show the. Connect the JAMMA side of the new J2 harness to J2 of the Perfect Solution board (#9). Reactions: djsheep. 28 Pins Jamma Harness Cabinet Wire Wiring Loom for Arcade Game PCB Video Board Machine Video Consoles Jamma Pandora Box 4 5 6. Queensland, Australia. You wire the negative terminal of the left speaker to the positive terminal of the right speaker. Hey everyone, I made some Jamma sticker labels for edge connectors. This Multigame board uses a slightly different JAMMA pinout. They would normally go to the four directional joystick microswitches, along with the grounding block harness on the opposite connection for each switch. The pinout of a board is used to map all of the wiring of the components of a game to the circuit board. Re: Kick harness pinout. JAMMA Pinout Chart Solder Side – Alpha Characters – 28 Pins – A-Z, a-f The solder surface is the base surface of the PCB. Sounds like it may be easier to avoid jamma and get a Centipede wiring harness. Standard 56 pin JAMMA cable. Solder a wire from your Male DB9 connector to your Controller port. For the record, I don’t think these cabinets are worth the money… for their vanilla value. JAMMA Harness - terminal 4,8mm. Arcade Jamma 56 Pin Interface Cabinet Wire Wiring Harness Loom Multicade Arcade PCB Cable for Arcade Machine Video Game Consoles Jamma 60-in-1 Board & Pandora Box 2 3 4 Game 4. The JAMMA standard was invented in 1985; any game older than this will not be JAMMA. 5 meters) 22/24 AWG wiring as appropriate. You can grab the JAMMA Pinout PDF here. Joined. Make sure it is fully wired. MVS and Jamma pinouts are slightly different, so you'll need change the pinout each time you switch between the two. 95. +. The inset image on the right is pretty small, but it shows the speaker mounted in the back of the drawer, as. 2 Wiring Removal The Global Arcade Classics System Kit is JAMMA compatible. #2. It comes with edge connector, push button lugs, power leads, grounds, and. New posts New media New media comments New profile posts Latest activity. And from the fingerboard of the 2nd cab I would wire the controls to a CPS2 kick harness connector for the 3/4p controls, also want to make an adapter to go from the CPS2 plug. I just soldered female spade connectors onto my JAMMA harness wires, then attached those right to the buttons and joysticks on my Dynamo. The trackball harness has a block connector at one end which connects to the trackball input pins on a 60 in 1 JAMMA board and also has two plastic block connectors on the other end to connect to the x and y axis pins on 3" trackball. #10. Out of Stock. JAMMA Wiring Harness. Jamma Extender Har. I am wiring a jamma harness in my cab with a 412 in 1. I have a JAMMA harness and the corresponding wiring guide. #1. 99. Qbert wiring harness to jamma Thread starter howie2673; Start date May 17, 2020; howie2673 Active member. LED Zero Delay Wiring Map. Search_Terms: Jamma 60-in-1 PCB, iCade, Arcade Multigame, Multicade board, JAMMA, Jamma PCB, Jamma 60-in-1, 60 in 1, Jamma Boards, 60 in 1 Arcade, 60 in 1 Jamma, Jamma Arcade, iCade 60 in 1, iCade 60-in-1, Jamma Board, Jamma wiring harness, jamma LED wiring, arcade wiring harness 44 PIN - GOLDEN FINGER. At the other end, a supplied 20cm patch cable will run from the. RGB/CGA/EGA to VGA Converter manual. - might be loose if the adapter pcb is thin and the springiness in the connector pins are a little waek (poor contacting)As for hooking up a JAMMA harness to the monitor, it's actually pretty easy. $4995. pdf - Free download as PDF File (. Item #: JAMMAHAR. 95. If you are installing the kit into a JAMMA cabinet, GLOBAL VR strongly recommends that you replace your existing JAMMA harness with the JAMMA+ harness from the kit. I am using a PC power supply to power the board so thats avoided but I am having a problem with connecting the jamma. Logged. who cares if someone has rewired the coin mechs to only coin 1. C. For Audio the stock audio cable will be plugged to the audio connector of the Pi2Jamma and Raspberry Pi. It's probably CHAMMA, so your harness is not sending the right signals to the right areas. Number Of Splice Connectors Included: 4. Mortal Kombat 2 Dollar Bill Validtor Operation - 16-9664 1 Pages, 12 kB File. I had cut and pasted the $30 price off his webpage for all of the items I'd ordered and noticed that it came out as $35 from him. Description. $0. Make sure it is fully wired. twistedquarter. NOT TESTED. The switcher routes +5VDC, +12VDC, and -5VDC, 4 shot buttons,. Most JAMMA boards expect pin 27 on the harness to be connected to ground which is part of the wiring standard. A JAMMA harness. I have converted a clone cocktail cabinet and put in a LCD and an ArcadeSD PCB. I understand the 12v and ground, but have a couple of other questions. JAMMA Wiring Harness Multicade 60 in 1 Arcade Game Cabinet Wire Labels Free Hot. Mortal_Kombat 1 Kit T-Unit CPU Ademendment - 16-43725-AMD-1 1 Pages, 19 kB File. And, it is the JAMMA standard pcb pinout (charted below) that has made it all possible. The JAMMA connector is a 3. Jamma wiring. Official pcb pin-out information may be available in the manual: Dedicated Mortal Kombat Operations Manual 62 Pages, 1. 5 out of 5 stars 15. KLOV FeedbackBoard Standard Cabinet Wiring Harness Loom for Jamma 60-in-1 PCB board, 738435028725. Want to know the cool thing?I bought the Jamma wiring harness from the same company as the Pandora's Box and I did not have to disconnect any ground wires. Ultimarc U-Trak Trackball. Joined Jul 21, 2015 Messages 11,461 Reaction score 12,667 Location NH, USA Mar 13, 2020 #4 winteriscoming said: That's a bummer about inconsistent button 4. You can find the JAMMA wiring diagram here: JAMMA Pinouts. -Move 'Audio Ground' wire from Pin M -> Pin 27. #2. Please reference the pinout below. 3in Arcade Trackball with Interface Harness for JAMMA 60-in-1 Multigame PCB - (translucent white ball) Price $77. Contact us: 1-229-941-2506 M-F 8:30 AM to 4:30 PM. Capcom button names. The writing harness from the original contra wiring goes into something that I can only describe as an adapter then it goes into a standard JAMMA harness -- not sure if this has anything to do with the lack of sound. First, cut the ground wires that are going to pin 27 and connect them to pin 28 (or another ground pin on the harness) with the existing wires.