Please confirm the pinout in the table below matches the wiring of your cabinet. Anyone have a wiring diagram for this? Specifically, the 14 (?) pin white connector on the bottom right. 3. Connect the JAMMA side of new harness J1 to J1 of the Perfect Solution board. 28 pins on each side of the Jamma harness. Unlike the JAMMA pinout standard, kick harnesses are not a uniform standard. 16A Arcade Switchi. Pandora Box CX Games List. One thing to note is that JAMMA pins c and 25 are used for the fourth button of player 2 and 1 respectively, just as in Neo Geo MVS. The kick harness, also known as the extra harness or plus harness, is a set of additional connectors that allow arcade PCBs to have extra inputs beyond what the JAMMA wiring standard allows. If you google image search JAMMA harness schematics, you get back a bunch of results and they are not all the same. Member; OfflineJamma harness and optical joystick wiring $45. This adapter includes the required 20 pin power connector and wire harness, and features a 12V lamp header along with a control map for providing 8 liner specific functions via the typical JAMMA controls. 95. 187 inch (3. 50. When properly seated to the pcb, the connectors of the edge. If you are making a cabinet from scratch or have an existing JAMMA cabinet and wish to replace its wiring, then our JAMMA Harness will do the job. Does anyone have a 100% true and accurate JAMMA schematic they have. The board has 1 JAMMA connector, 1 VGA and 1 HDMI video output connector. 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. Some games<br />. 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. OP. 5 meters) 22/24 AWG wiring as appropriate. When an old. #1. I'm almost finished, but for the life of me, can't figure out how/where the service and test wires go. This trackball interface harness includes connections for two trackballs (Player 1 and Player 2) if the. 96mm). JAMMA stands for Japan Amusement Machinery Manufacturers Association, and is the groups that defined the standard connector known as a JAMMA harness for arcade pcbs. Can you help? Converting a JAMMA wired cabinet to CHAMMA is really just a two-step process. A: Absolutely! Immediately below is the pinout information, and further below you can find information on the connector and pins used: Regarding the plug itself, it is manufactured by Hirose Electric Japan. Jun 28, 2022. GLOBAL VR® strongly recommends using the JAMMA harness provided in the kit to prevent wiring errors. Cabinets & Artwork Discover ways to make your arcade look like new. Would that work? Frank_fjs Multi Boyz 4 Lyfe. clean the slots w isopropynol , and ensure proper +5 at the edge connector. Media. jamma harnesses Thread starter jimbodeanny; Start date Sep 29, 2006;Jamma Wiring Neo Geo MVS Solder Side Parts Side Solder Side Parts Side Ground A 1 Ground Ground A 1 Ground Ground B 2 Ground Ground B 2 Ground Pos 5 Volts C 3 Pos 5 Volts. Is there a problem with just using a switcher and a jamma harness rather than redoing all the original wiring and rebuilding the original power supply?Another option is to install a button on the coin door to credit up. net Rating: % positive. And I can only assume that the instruction manual for the Rev B board are incorrect. As you can see below the Capcom CPS2 kick harness has way more pins than the Mortal Kombat kick harness. Product Details. Solder a wire from your Male DB9 connector to your Controller port. Ability to connect external volume knobs. Product Description. I say this because my control panel is the JAMMA 56 pin standard and I don't want to mess with that. 98. Capcom CPS2 - CPS3 Kick Harness to Microswitches / Buttons. This JAMMA harness is good quality and as the other review states, easy to read and all in English. 3. The jamma boards detect when the signal is held low (or connect to ground/button pressed). Features: 200 Watt switching power supply. Bob's wiring guide you linked is a good reference. Standard JAMMA Connector Pinout Joseph Howell July 12, 2018 15:35 Follow Q: I am wiring a JAMMA harness into a cabinet and do not have a wiring diagram handy. Wiring diagram Below is the basic pinout diagram for jamma pcb, you can use this as reference when you are connecting the wire/ harness. Link below:Ohio. Details Wishlist Assorted Connector Lot. Posted September 20, 2011. Used on many original and aftermarket arcade video game PC boards to connect to power supply and game hardware (joysticks. 00. JAMMA is a standard connector used on many arcade boards to simplify conversion of cabinets from one game to another. Harnesses come in a range of varieties, but in most cases are used to extend the game's control set to allow 6 buttons per player. this board only uses the +5 and +12 (audio). 31768. The jamma pinout is labeled. Multicade Trackball/Joystick Multigame wiring harness. To use it you need either a Nintendo edge connector harness or a jamma adapter and jamma harness. New posts New media New media comments New profile posts Latest activity. JAMMA applications usually use a 12 volt DC or 6 volt DC meter. O. <br />. Regular price $22. In Stock. JAMMA is a standard connector used on many arcade boards to simplify conversion of cabinets from one game to another. Then this pinout should help you out quite a bit. Show More Show Less Compare. I will show the harness as well to demonstrate the orientation of the. 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. dezbaz Well-known member. If you're looking for top quality, that's your only answer. Can you help?Nov 5, 2008. Available on eBay (Search for "jamma harness"), these usually run about $10 and include the card-edge connector and all the wiring we might possibly need. Part Side Solder Side GND 1 GND GND 2 GND ＋ 5V 3 ＋ 5V ＋ 5V 4 ＋ 5V 5 ＋12V 6 ＋12V 7 1P COIN METER 8 2P COIN METER 9 SPEAKER ＋ 10 SPEAKER － 11. Here, this will make it easy. 2. Hundreds of used Molex, Amp, etc. Ground Wire Chain with Quick Connects 4. 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. €17. Sit Down Jamma Harness & Cabinet Power harness (Does Not. Assuming the ends of your new harness are all bares ends with no connectors. JAMMA pinout connector + 2 addition buttons per player ; Multi-WMS pinout option using only 6 button input ; Separate. I just soldered female spade connectors onto my JAMMA harness wires, then attached those right to the buttons and joysticks on my Dynamo. Details Wishlist Nintendo Vs. Association) is a standard 56-way connector used on many arcade<br />. ** Marvel Vs. Yes I bridge 28 and 27 on the side going to the JAMMA harness so that the grounds are intact. The pinout is: 1 - no connect 2 - right 3 - ground 4 - left . Solder a wire from your Male DB9 connector to your Controller port. ---- Used. Recently put a JAMMA 60 in 1 into an old Contra Cabinet -- getting absolutely NO SOUND. Where To Buy A JAMMA Harness Sometime around 1986, the arcade manufacturers decided that using different pinouts for each game was a bit of pain and that if a standard was developed, games. Something to hook the Raspberry Pi to JAMMA. Capcom button names. I really don't think it really needs an schematic. KEY. Nothing happened (nothing fried either, thankfully). Makes it a bit easier to wire stuff. 9%. Inside the Supergun. This JAMMA harness is wired for 6 buttons per player and comes with coin counter wiring. 2. Two connectors will need to unplugged and swapped when you want to go from jamma mono to cab amplified stereo. This harness is a plug and play solution for wiring an upright cabinet to run a new JAMMA multigame pcb with support for two joysticks and 6 buttons. Details Wishlist Carnival Wiring Harness (Partial). The A. You will Printing the pinouts on the harness connector gets around both of these problems and ensures that the pin locations will be preserved for years to come. Inspect so nothing is crossed/shorted out. Standard JAMMA. #3. 1) Point 1 is test and goes through 2 and 3 (far right) to Jamma M, while point 4 goes through 5 to Jamma 15: 2) With a sharp blade (Stanley knife, X-acto knife, etc. Mortal Kombat Kit Amendment 4 Pages, 54 kB File. Yep. 00. 985 Erve Williams Road Moultrie, GA. It is a proper arcade harness and is labeled but some of the labeling doesn't match up to what I am seeing for a Pandora. * Has Jamma 60-IN-1 PCB connector! Conects Jamma 60-IN-1 PCB board to a three inch. What's new. -Move 'Test Switch' wire from Pin 15 -> Pin M. . It looks like he did this on both sides. Custom Chips/Daughter PCBs. 00. It's fairly straight forward. ed. Contact us: 1-229-941-2506 M-F 8:30 AM to 4:30 PM. In doing so, one of the challenges I faced was finding a good diagram for the Jamma pinout. Many harnesses use regular 56 pin board connectors which don. RetroArcade. 8mm Crimps (56 Pin) This JAMMA harness comes complete with . $19. 50. 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. If you are installing the kit into a JAMMA cabinet, you may choose to leave the wiring harness intact. JAMMA Pinout. The JAMMA connector is a 3. gameboardsoc1234 (64,796) 99. Please note that this adapter is not suitable for gambling and redemption environments. JAMMA Harness Standard 56 pin Jamma Connector used on many Arcade Boards to simplify conversion of game cabinets with color coded connections for 2 players, power, coin doors, test, service, video, and sound. If that doesn't work, get another board. 96mm pitch-edge connector (male on game board). The only change was removing the Joust wiring, control panel and the JROK adapter, then installing the multi Williams control panel and wiring harness. New posts New media New media comments New profile posts Latest activity. I would be interested to hear if someone has a better/easier solution. 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. . P1 5 (P1 SW7 on 60 Pin Connector according to AO Wiki Pinout - not on jamma edge) P1 6 (P1 SW8 on 60 Pin Connector according to AO Wiki Pinout - not on jamma edge) NC (At least not to the 60pin connector or the jamma edge) P2 4 (P2 SW6 on 60 Pin Connector according to AO Wiki Pinout - not on jamma edge) And, it is the JAMMA standard pcb pinout (charted below) that has made it all possible. Current slide {CURRENT_SLIDE} of {TOTAL_SLIDES}- Best Selling in Replacement Parts. €11. +C $38. - dk jr board does have edge connector. 2 In the 2010's, Chinese JAMMA boards started mapping the grounds on pins 'e' and '27' to INPUTs, to avoid using a KICK harness. I have a standard arcade coin door and I want to wire a JAMMA wiring harness so the lights, coins, and meter functions. I've found the wiring on the harness that the buttons should go on (R and 15, according to Bob Roberts handy guide), but What sort of button can I use?Hang-On to JAMMA. I had already bought the harness from a real cabinet a while back, so connecting it up was pretty straightforward. New Full Jamma Plus+ Harness Features:> Now includeds button 5 and 6 for both player 1 and 2> Includes button 5 and 6 quick connector for Jamma boards with external button hookup such as the 302-in-1 PCB. #7. Reactions: djsheep. Centipede JAMMA adapter will allow an original Centipede PCB to work in a JAMMA wired cabinet. I have a JAMMA harness and the corresponding wiring guide. I was going to buy a new one but I'm having trouble figuring and finding a wiring diagram for. Centipede JAMMA Adapter. JAMMA cable and wiring installed. ★★★Standard Jamma connector, contains 5 6 PIN Interface Cabinet,fast connection to the jamma board and joystick or buttons. 1. 99. 28 pins on each side of the Jamma Harness. For Audio the stock audio cable will be plugged to the audio connector of the Pi2Jamma and Raspberry Pi. games. Save State/Load State Feature:Oct 26, 2020. Standardizing. 95. It is a proper arcade harness and is labeled but some of the labeling doesn't match up to what I am seeing for a Pandora. Product Information Jamma wiring harness english stickers are hear!Product Features: Great guide for new builders, assembly, and troubleshooting Jamma system connections. Pins 1-6, 27, 28, A-F, e, and f get wired to your switching power supply appropriately. – Includes Attached Mini Red Pushbuttons for Bookkeeping & Account Set Up. It's interesting that the Golden TEE folks claim the game is JAMMA, but it clearly is not. Each side measures 10. MVS and Jamma pinouts are slightly different, so you'll need change the pinout each time you switch between the two. . 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. If you need any of these functions, you will need to solder in your own wire. 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. It’s a card-edge style consisting of 56. ★Jamma Harness with 2x28pins 56 Pin connector that can be used for standard Jamma Arcade cabinet (Machines) and PCBs. Details Wishlist. TwistedQuarter. The wiring goes like this, from speakers it runs to a amp, from the amp it runs to a control knob, then from there it runs to the jamma harness. 95. In the table below X indicates that there is no wire present. I have the power and video working. Location. On the Mr. > Includes -5v power line for older style boards> Includes two Coin Meeter lines for Coin Counter 1 and 2 > Designed with. com). connect the 2-pin. This was a costly operation due to none standard wiring. Kujako said: Correct, mine actually has the power adapter (pic was from an image search). 50. €8. Rebuilding a centipede wiring harness. Some games (Street Fighter, Mortal Kombat, etc) which need extra buttons have extra connectors for these additional controls. It includes; All pins are labeled in English. Such damage is not covered under the warranty. 6K views 8 years ago. JAMMA Pinouts. Joined. Solder a wire from your Male DB9 connector to your Controller port. Changes: Female edge connector side. 26 Inch Arcade Game LED Monitor, Jamma MAME and Cocktail game cabinets, Direct tube Replacement. The JAMMA connector is a 3. Currently runs fine with my SF II Arcade 1up with the USB encoders. This versatile multigame board can be installed directly in an Arcade cabinet with a classic Hantarex Arcade monitor, for example, or in a. 31768. That is an edge connector for using a Nintendo edge connector harness. OK, for question 1: The 3rd prong/middle prong, doesn't have to have anything attached. To connect older non-JAMMA games to a standard JAMMA cabinet a custom wiring harness is needed. 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. $1. Harness with the JAMMA harness from the kit. The negative from the 24V PSU I connected to Pin 1 (GND). By removing the JROK adapter, there was nothing to plug the JROK H-sync and V-sync plug in to. Based on above it sounds like you broke your connector (non jamma) and are simply replacing it as is with no jamma involvement or intentions. A. 7m -. Has anyone installed a multi game pandoras box to their stock jamma harness? I have a street fighter 2 with what seems to be the original jamma harness and I thought the pandoras box would be plug and play, but it hasn't. 95. Oct 29, 2016. Seattle, Washington. A Complete Upright JAMMA wiring kit. 1 year warranty. Coin door harness was cut so I don't know what the normal state of it is, nor do I have any sort of standard connector for my jamma harness. May 6, 2010 #10Casino games. May be the way to go around this will to plug buttons 1 to 5 thru the Jamma (Jamma+) and the 6 buttons using CN4 following the pinout you found out. #1. Regular JAMMA Pinout -. I believe that would be a pre jamma harness. #10. Good luck. Legendary. The JAMMA standard was invented in 1985; any game older than this will not be JAMMA. If you can make up a sheet with the LAI universal wiring edge connector with the wiring colours beside the appropriate pins it would be a great reference for people. Would love a pic of the connector/harness you were copying. Re: Wiring 60 in 1 and LCD. 35. Different arcade PCB makers use differnt. JAMMA Wiring. This adapter follows the following pinout scheme: Main Connector (44. Now looking at the pinouts on my jamma harness, Pin 16 on the parts side ends in a 3 pin molex plug with a green coin 1, yellow +5 and a ground. Just need to pick your brains if that?s ok, Im building a cab using Jamma and wanted to use a coin button as opposed to a coin mech. PC to Jamma USB Wiring Diagram. For the left switch, one wire goes to "Coin 1" on the jamma harness, while the other wire goes to ground. Welcome to the Arcade Repair Tips Video Series! In this video, Tim Peterson shows you how to wire an arcade cabinet using the JAMMA standard. 2. One is to put diodes on all of the button lines (think of a diode as a one way street) so the signal can only travel out from the jamma boards. Pull the pinout for the JAMMA edge for the 6. Wiring harness for RA-TRACK-BALL-3. And, it is the JAMMA standard pcb pinout (charted below) that has made it all possible. C $89. Technical Notes. Joined Dec 7, 2019 Messages 392 Reaction score 57 Location Just find the pinout for your boards kick harness and match it up to your standardized pinout above. Jan 4, 2019. Jamma Power Supply Wiring Diagram wiring diagram is a simplified standard pictorial representation of an electrical circuit. I was intending on allowing for extra buttons from the control panel and putting a molex next to the jamma for a kick harness to the pcb. ttooddddyy PNG FTW, Joined Nov 29, 2001 Posts 8,335. This is great if you're wiring a cabinet from scratch. KEY. "COIN 2" ends in a regular single connector. those wires where missing), but it's labeled on the. Would love a pic of the connector/harness you were copying. The Pandora’s Box 5S is packed with features to help you setup and build your retro arcade cabinet. Description. Mortal Kombat 2 Kit - 16-44029-101 76 Pages, 3 MB File. Connect the GBS-8220 PCB to your +5VDC Power Source: Connect the RED wire of the power cable to the +5VDC source and the BLACK wire to the DC GROUND source. The PCB voltage of ＋ 5V pin CAN NOT exceed +5. Jul 22, 2022. A standard jamma harness has the capability of using three buttons. 28 pins on each side of the Jamma harness. – Hook Ups for the 6 Player Buttons Include Wiring for Each of the 6 Player Button Lamps. (You need only to splice in the Main Power (110v AC) into the 3-Pin Connector (GRN/WHT/BLK). Locate harness J2 (#20) and connect the four open jacks on the existing I/O PCB from which the connector were removed previously. The software and hardware works together to listen for signals on each of these pins and make a logic decision in the game. 99 each Status: In Stock (5 Available) Order: Add To Cart . Harness Pinout Is Labeled For Pandora's Box Fast connection to power supply with. Part #: 80-5100-00 Condition: New: New standard 56-pin Jamma connector and color-coded wiring harness. Arcade JAMMA Cabinet Wire Wiring Harness Loom Multicade Arcade PCB cable For Jamma 60-in-1 PCB board and other multigame boards Each bid will be received： 1 x Jamma Standard 56 Pin Cable 1 x Operating Instructions Product Information: New Premium Standard 56 pin Jamma connector used on many arcade. <br />. The pin on the right is the LED anode (or positive wire [+]). The hinge method for installing the overlay: - Place masking tape at the top of your control panel overlay. 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. collecting (More info?) is the pinout for the jamma board the same as the original pcb? i had my unkeyed jamma ms pac board hooked up to an unkeyed harness and pulled it off but forgot to remember which way the harness was rotated. Donor 4 years: 2011, 2013-2014, 2016. 33. Should I just connect that yellow button to "COIN 2" and cut the wires (including "COIN. Currently, it's hooked up to a. - 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. 95. With the advent of JAMMA swapping game boards between cabinets became much easier, since the boards used the same pinouts the primary issue to contend with was/is the orientation of the monitor and. 6 and 9 to the kick harness connector on the supergun. #1. 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. 8. That is an edge connector for using a Nintendo edge connector harness. 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. . 2 In the 2010's, Chinese JAMMA boards started mapping the grounds on pins 'e' and '27' to INPUTs, to avoid using a KICK harness. The following JAMMA pinout chart is basically a map of the JAMMA wiring harness 56-pin edge connector. Jul 10, 2020. Jamma Harness Wiring 6 buttons 150cm / 56 pins (28 pins per side) €11. The wiring inside the Supergun for the kick harness is very simple. Doing so will certainly fry the inputs chip ( NEO-C1. Pc to Jamma USB Card Adapter with Audio Amplifier. For the right switch, one wire goes to "Coin 2" on the jamma harness, while the other wire goes to ground. Details Wishlist Assorted Connector Lot. In this section you will find all kinds of wires, audio cables, Jamma harnesses, connection cables and accessories for the setup of your arcade project. Connectors, Headers & Pins. FREE delivery Mon, Oct 16 on $35 of items shipped by Amazon. The other two ground wires are to be used to feed the coin door and control panel ground commons. jimkirk. Pac that I have is Jamma based in a classic cocktail cabinet, and the only thing going to the coin door is a credit button. 5 Foot Length. 4. Centipede JAMMA Adapter. All connections to your joystick and push button micro-switches are included and already fully assembled. 00. Item is in stock. Description. C. Wiring Harness Length (in): 12 Inch. Nothing else, no counter, coin mechs, or other buttons. THEN, confirm where the same pin on the opposite connector is wired to (which port on power supply, or jamma harness). 8MM QUICK CONNECTS FOR I-PAC, 30 WIRES AND GROUND CHAIN. JAMMA Pinout Chart Solder Side – Alpha Characters – 28 Pins – A-Z, a-f The solder surface is the base surface of the PCB. This JAMMA harness is wired for 6 buttons per player and comes with coin counter wiring. ShmengeTravel Mature's Make-up Artist. The pin out is slightly different, but not. The JAMMA audio pins on both variants of the System 246 JAMMA PCB offer mono sound when connected in a cab using a traditional JAMMA harness, but stereo sound is also available via a 4 pin JST connector located on the front right of the PCB. To connect older non-JAMMA games to a standard JAMMA cabinet a custom wiring harness is needed. Perhaps we should review basic JAMMA cabinet wiring: There are 8 ground wires in the JAMMA harness (4 at each end). Location. So I no longer need this PCB. Images PinoutFor more information on the JAMMA Pinout go here. WIRING KIT WITH 4. ) Daisychain a ground wire to all the switches and connect it to one of the ground wires on the harness, and it's that easy. Standard 56 pin Jamma Connector used on many Arcade Boards to simplify conversion of game cabinets with color coded connections for 2 players, power, coin doors, test, service, video, and sound. 2. sadly, i have the jamma pinout memorized. 00. as the 302-in-1 PCB. $ Free diagramweb. GBS8100 VGA to CGA Video Converter. In the case of JAMMA, it is going to be 5 lines video. $1. Comparing the wiring to the wire guide it’s the same thing, things are just a bit out of place. Edge connector includes -5Volts (as well as all other voltages) Button 4 + 5 are also connected into the harness. The black wire from the encoder board indeed delivers +5V and the red is indeed ground. I will show the. Ten 10 Pack Jamma Wiring Harness - Buy more and Save! Includes: 10 - RA-WIRE-HARNESSProduct Information Approximate lead length: 1. There are two wires coming from each coin counter. Some games<br />. . 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) Jamma2NeoGeo4SlotPinout. What To Do With Your JAMMA Harness by Bob Roberts an article on scratch-building a harness from wire, and connecting it to a cabinet; JAMMA boards - a shop selling harnesses and breakout boards;. Thread starter Misos; Start date Oct 18, 2019; M. The setup of an arcade project requires a good number of components and accessories. I'm connecting just one coin button, the yellow button shown below. Sep 6, 2019. I add a little 4-pin connecter to my X-to-JAMMA adapter harness and run GND, +12, line level audio in, speaker level audio out signals to the connecter and then just plug a little audio amp PCB into that connecter. Break connectors are important to the CP & coin door, so that they may easily be removed if the need arises. Jamma 60-IN-1, Mame, Retro PI Classic Arcade Multigame-Multicade Arcade cocktail game control kit. Make sure it is fully wired. I will show the. 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. #2. And it required switching to 8-way joysticks because 1) JAMMA doesn’t have the pinout for a 49-way, and 2) NBA JAM only used 8-way sticks. scott, you might have two problems - the card edge socket on your jamma harness might have some "loose" or "dirty" connectors when connecting to the adapter. More information and optional items: Supergun dedicated (not only for the HAS) Hard gold plated JAMMA edge contacts (not soft gold "ENIG") ~60 cm cables length (~68 cm total length). The "COIN 1" wire from the JAMMA harness leads to the white connector shown below (circled red ). I've had the hardest time finding a Scramble Harness. The majority of games use a. 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. 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. The JAMMA standard was invented in 1985; any game older than this will not be JAMMA. Product Information New Premium Standard 56 pin Jamma connector used on many arcade boards to simplify conversion of game cabinets with color coded connections for 2 players, power, coin doors, test, service, video, and sound. State: Vic. I have noticed there are discrepancies between some, such as below: Note things like the S/15 and J/8.