MultiPacc Installation Manual V1.2
Contents
1. MultiPac 24 in 1 Installation Guide and User s Manual MultiPac Documentation Rev 1 2 OEM Version Notice Regarding this Upgrade Warning Although this upgrade has been tested and the techniques used will not directly cause harm to your video game if you do something wrong you can very seriously damage the game electronics To perform this upgrade you should e Be familiar with safe handling procedures for electronic components e Be able to remove and replace socketed IC s chips without causing damage e Be able to follow directions Arcade games are rugged equipment but anytime you start messing around with something particularly something electronic you accept a certain amount of risk that you may break something This kit carries with it no guaranty of compatibility to your particular game Although this kit has been tested in numerous Pacman and Ms Pacman arcade games and CPU boards there s a remote possibility that some of them are different If you carefully follow these instructions you ll do fine and everything will work I ll try to help walk you through any problems you have but if this looks like it s above your confidence level please recruit someone locally to install the kit for you Please read these instructions completely through before starting If at any point your PCB looks significantly different than what you see in here contact the dealer your purchased it from for assistance This upg2. on the next page Remove the Z 80 Sync Bus Controller board You may need to cut a plastic zip tie holding the board on Some boards may have a 285 chip at this location It s the functional equivalent of the Z 80 Sync Bus Controller board Remove the 40 pin chip or ribbon cable connector at location 6B It s a Z 80 microprocessor Set the chip or daughtercard aside we ll need it in a minute If your game had a MS PAC MAN AUX P C board plugged into location 6B remove the Z 80 from location U4 on the board and set it aside Remove the PROM at location 4A a small 16 pin chip Remove the PROM at location 7F a small 16 pin chip Remove the EPROMs at locations 5E and SF these are 24 pin chips Remove the EPROMSs at locations 6E 6F 6H 6J these are 24 pin chips Using a small blade standard screwdriver or chip puller remove the chips listed above and place them in a static safe area Be sure you didn t bend any pins if you did bend them back carefully You can store the EPROMs and PROMS in case you ever want to convert the board back to normal They will be replaced by the MultiPac The picture below shows the board with the above chips removed and shows where the MultiPac plugs in 1 OOT TETTEIT N t seeere beee g TTOTTE k FE I E EETTEEETON barwhethiee ton ober bbleebiot AG WA MultiPac Documentation Rev 1 2 OEM Version If your board has more EP
3. ROMs on it than the list above it s probably a Pacman board that has been modified to play Ms Pacman without the Ms Pacman daughtercard Remove any additional EPROMs usually by K L and M on the board If the Z 80 at location 6B has been soldered onto the board the board has been modified by someone You ll need to remove the Z 80 and place a socket at 6B You may want to have a qualified electronics technician remove the chip and replace the socket since it can be a difficult task for a beginner Installing the Z 80 You need to put a Z 80 into the 40 pin socket on the MultiPac You can use the Z 80 you removed from socket 6B on the game board or U4 on a Ms Pacman daughtercard or any other known good Z 80 Locate the notch on the end of the Z 80 chip and match it up to the notch at the end of the 40 pin socket on the MultiPac daughtercard Gently press the Z 80 into the socket on the MultiPac Be careful to get all the pins in the socket and not to bend any pins out Install the MultiPac boards You re now ready to install the MultiPac boards onto your game board Take the largest MultiPac board with the Z 80 on it and orient it so that the board hangs over the edge of the game board about two inches and the pins at 6B on the MultiPac line up to the socket at 6B on the game board Press down carefully and the MultiPac board should seat into the socket on the Pacman board Satellite board 7F comes off the
4. ard or bent broken pins on the MultiPac MultiPac Documentation Rev 1 2 OEM Version Adding a menu button If everything seems to be working at this point you should be able select games from the menu by using the joystick and pressing the P1 Start button Pressing the red reset button on the game board will return you to the game menu or turning the power on and off your machine will accomplish the same thing If you want to be able to call the menu without turning the power off and on or hitting reset you can add a menu button to your game All that is needed is a normally open push button momentary switch You can get one from Radio Shack or use pretty much any push button switch you desire No not use a toggle type switch There is a two pin header on the MultiPac daughtercard that you can attach your switch to The header is located on the right hand side of the MultiPac daughtercard by the Z 80 and the plug to 6B The two pins are visible from under the Z 80 Sync Bus Controller Most people will want to run several feet of wire from the two pins and connect it to the switch I find that mounting the switch inside the coin door is convenient although you can place it anywhere you want You can solder the wires directly to the pins on the MultiPac or use a 1 header to connect to the MultiPac With the menu button installed the MultiPac menu will appear whenever the menu button is p
5. edge of the Pacman board a hard bump or hit to the machine can bump the MultiPac loose If your machine is going to be operated or moved frequently you may want to secure the MultiPac to the main Pacman board with some hot glue or some zip ties Zip tying the board on will require drilling through the main Pacman board be careful MultiPac Documentation Rev 1 2 OEM Version
6. ler touch you can insert another 28 pin dual wipe socket not included into the socket at 6D to get some addtional height Reassemble and Test At this point the upgrade is complete You should have something that looks like the picture on the following page MultiPac Documentation Rev 1 2 OEM Version MultiPac GFX Double check that all the MultiPac boards are fully plugged in and that there are no pins bent out or missing the sockets You can now put the game board back into the cabinet reconnect the cable and turn the power on When the game comes up you should see the MultiPac menu screen If you do not see the menu screen press the red reset button on the game board If the menu still doesn t appear turn the power off remove the board and re check the installation Make sure that no pins are bent over or missing the holes on the sockets of the game board Also make sure that no pins on the Z 80 are bent or broken on the MultiPac board If everything checks out OK but you still don t get a menu when you power up the game remove the MultiPac and reverse the installation steps to replace all the PROMs EPROMs and Z 80 in your board to return it to it s original state Verify that the board indeed works and repeat the installation of the MultiPac If still doesn t work contact the dealer you purchased the MultiPac from for help Remember that most problems will be traced to either failed sockets on the gamebo
7. otes Lizard Wizard will not operate in 2 player mode due to lack of controls on a Pacman game Eyes in two player mode on cocktail machines will only be playable by Player 1 Lizard Wizard and Eyes use the P1 Start button as the fire button Crush Roller will not allow two player mode as a compromise for upright cocktail games P Ms Pac Fast Ms Pacman but with fast Pacman and normal speed Ghosts P MultiPac Documentation Rev 1 2 OEM Version Getting Started First let s cover what you ll need in some detail The kit is designed to be installed into any genuine Pacman Arcade Game game or machine Preparing the game board Start with the machine turned off and unplugged from the wall Open your game to gain access to the game circuit board You will need to remove the cable connected to the game board Make SURE you mark or somehow identify where the cable needs to re connect to the board Remove any screws or other fasteners holding the game board in place Remove the board from the machine Depending on the game you should have something that looks like this aise o Wes Tt z Only original Ms Pacman game boards will have the daughtercard pictured on the right of the image above MultiPac Documentation Rev 1 2 OEM Version Upgrading the board We ll be removing several items from the Pacman board in preparation for installing the MultiPac modification Follow the steps outlined
8. rade should ONLY be used on a genuine Pacman or Ms Pacman game circuit board A different version of this kit is used for various pirate Pacman boardsets If you re unsure if your board is genuine or not compare it to the pictures in this manual Original Pacman or Ms Pacman boards are green in color and clearly bear the name PAC MAN A082 91375 xxxx Pirate boards are often blue in color and smaller than a genuine board Throughout this manual Pacman will be used as a generic term to refer to both Pacman and Ms Pacman boards MultiPac Documentation Rev 1 2 OEM Version Introduction The MultiPac consists of a daughter card and three smaller satellite boards that plug into your Pacman boardset When used with a Ms Pacman boardset the MultiPac eliminates the need for the Ms Pacman daughtercard A084 91415 B617 Once the MultiPac is installed in your boardset you will have an on screen menu built into your game with which you can select any of 24 different games to play These instructions describe how to install the kit into a working Pacman arcade game No soldering is required and all operations are fully reversible Please read all these instructions thoroughly before starting the conversion Games Included with MultiPac Description acman but with fast Pacman and normal speed Ghosts Ms Pacman Classic Ms Pacman Ms Pacman with race cars Ms Pacman with Beasties tribute to Jeff Mintner N
9. ressed Note that any game in progress or any credits on the machine are lost when the menu is called For operator use most locations will do best to keep the menu button hidden and just select a new game during collections or whenever the machine is powered up Some locations will do fine with brief instructions posted on the machine Press Menu select game insert coin s play game Pressing Menu during a game will lose all credits Troubleshooting Given a 100 working Pacman board to start with so far every problem installing MultiPacs has been either bent broken misaligned pins or bad sockets on the Pacman board Use to following table to help troubleshoot Remember that all the MultiPacs are 100 tested working before shipping so getting a bad card is VERY unlikely Problem Solution Screen full of garbage Nothing happens Check alignment seating of main MultiPac board 6B seating alignment of cards at 5E and 4A Graphics shimmer look semi random Getting a couple bent pins or missing a couple pins of the socket shouldn t harm the MultiPac Just bend the pins back and or carefully re install the card in the proper location If you do manage to kill part of the MultiPac by improper installation however it s NOT a free in warranty type repair Be careful You re done That s it Your MultiPac should now be installed and working properly Because the MultiPac board extends over the
10. right side of the MultiPac board Carefully press the 7F board into socket 7F on the Pacman board Be sure to line the pins up properly Satellite board 4A comes off the left side of the MultiPac board Carefully press the 4A board into socket 4A on the Pacman board Be sure to line the pins up properly Satellite board SE comes off the left side of the MultiPac board Carefully press the SE board into socket 5E on the Pacman board Be sure to line the pins up properly The picture on the next page shows the MultiPac installed without the Z 80 Sync Bus Controller in place MultiPac Documentation Rev 1 2 OEM Version i p Gi SS e gm MultiPac N a amp My Perera r bi i gt A E eeaim Once all the MultiPac boards are installed replace the Z 80 Sync Bus Controller board at location 6D The chips on the Z 80 Sync Bus Controller board should all have their notches facing the same direction as the chips on the game Board The chips on the MultiPac boards should also be facing the same direction as the chips on the game board Be careful to keep the wire going to 7F away from the socket at 6D The MultiPac is designed to sit underneath the Z 80 Sync Bus Controller without touching Some Pacman boards may have been modified in the past and have the Z 80 Sync Bus Controller mounted lower than normal If the MultiPac and the Z 80 Sync Bus Control
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