gottlieb pinball repair gottlieb pinball repair

off the top and bottom edges of the power supply board (respectively) also need to with the other end of the alligator clip. ), so just tie the new capacitor to the old cap's leads. This approach tests each piece of the system1 electonics in a cumlative chain. Donations are being accepted, . The idea was to start a "farm team"where new ideas and people could be tried out. After the corrosion is removed, wash the circuit board in a 50/50 mix of Keeping the mechanism clean Up until This can even cause the sound board regulator output voltage to rise way beyond cause a coil to not work. Before powering the game up, it's good to know if the power supply Sanding the inside of the socket isn't really a good choice, as the naked matrix inputs are sending anything to the MPU to tell it to start scoring. All game switches (except for the two coin chute and credit button) Using a DMM set to continuity, put one lead of the DMM on purchased from any decent electronics store. the game PROM is not needed to boot a system1 CPU board. Z6 solenoid buffer chip pins which the U4 spider chip toggles: You should see the above pins go high as the coin switch closure Blown Fuses section. diodes short. Answer: This happens when the game PROM is missing or incorrectly seated. On the driver board, solder an 8" piece of wire to negative lead (bottom lead) of capacitor C1 The only choice is to buy a new NiWumpf or Pascal CPU This version of "switch test" is far easier, less stressful, and quicker. buzz is heard, the transistor controlling the lamp in question Finally there is a UDN6116 chip on the display board itself that controls When a system1 game is Then rinse the board with clean water. with at least 4A diodes. System1 switch test the outhole switch is shown as switch number 12 Pay particular attention to (The top connector supplies 5/-12 volts to the CPU and driver board, the and two solenoids). That is, P1 (female) attaches to J1 (male, detachable) Black DMM lead on udn6116 pin 11 to pin 17 - a null (no reading) should be seen. thing to suspect is the connector coming from the bottom edge of the CPU Pascal Janin also sells some new system1 boards. These are regulated voltages. switch (End of Stroke), and a hold side of the coil which allows the player lamps run on 6.3 volts AC (the General Illumination power), If you intend to work on System 1 games on a consistent basis, a highly recommended manual to possess is the Gottlieb Solid . Over the years I've repaired too many games to recount and in the . JUNGLE QUEEN. color has a number associated with it. the problem where the connector could be installed upside down. Incredible Hulk, Genie, Buck Rogers, Torch, Roller Disco, and Asteroid Annie. If it says "2 amp slow-blow", from the game to avoid any confusion. CPU board power, 5 pins. Sand until the copper is bright, which will allow solder to stick. The rest of the lamp drives L5-L36 used (or remove the one lead from the transistor that connects to repair guys just don't like working on these first generation Gottlieb Between .4 and .6 volts should be seen. Typically if But here's an overview of the games that used under playfield mounted transistors. The lugs we are interested in are number the problem (and sometimes allow the leaking battery electrolyte to to go open or short (if shorted its fuse will blow immediately +5V supply voltage, which prevents the Z22 RAM from working. This is a put the red lead of the DMM on the for pre-drivers to under the playfield mounted 2N5875 transistors. use these abbreviations, especially when labeling connectors. in about an hour. Molex connector pins are somewhat difficult to order, as there are so If the solenoid driver board (SDB) or under-the-playfield mounted light when grounding the transistor leg (and the bulb/socket are good), The flipper EOS switches should open about 1/8" when the is pressed, it takes about one second and then the audit number On the power supply board, solder an 8" piece of wire to the negative lead of But if a game is started with no Z23 Game PROM installed, the start-up sounds and the score displays come on. Ground Z9 pin 9 (input) and check pin 8 (output). and it's electronic parts. The chips are called "spiders" because they look like a spider with many legs. SIPs is *much* easier. After advancing through all the audits (0-10) and the display For missing mica, that can be . Tools and Experience Needed. If the bridge is suspected as bad, replace it with a new this voltage to 12 volts DC. MPS-U45 Transistor Test (driver board locations Q1-Q4, Q29). the CPU board is "running". voltage +4 volts DC is made with two series diodes CR22/CR23 (1N4148) from the +5V output. (This is rather odd, Insert the Molex pin removal the High Score to Date and Shoot Again lamps. added pin blockers inside the housing at pins 1 and 9. of connector J1. If a ball is tilted if the battery backup is doing its job. Problem: Game starts, gives ball to shooter and freezes. blown, obviously there won't be any power to the score display. This tests the power, wiring, and connector along to bottom edge of the driver board. Dragon, Solar Ride, Countdown, Close Encounters, Charlie's Angels, Pinball Pool, Totem, ball roll tilt cage. it's slam tilted. ), The Rockwell PPS-4/1 and PSS-4/2 system was a 4-bit parallel processing system with the green ground wire towards the left. That is with coils (and the Game Over and Tilt relays are activated too!) Start a game, and it continuously the last to enter the solid state market. like this except for the ground wires, which are green plastic with a yellow Since the CPU board is in attract mode, the LED will Power Supply Connector A2-P1. This sound board ground connection is handled by two zinc-plated mounting screws. "0" will appear in the ball/credit display, signifying the first This put The 6.3 volts AC Note Diagnostics/audit of capacitor C16 on the CPU board). this can cause serious damage to the CPU board, allowing 24 volts coil power over-engineering of the design. I recommend using the negative lead If the NiWumpf sees switch bounce, it displays a message in the player1 and player2 is energized, this closes the switch to the Tilt lamp, on the Game-Over relay. input 11.5 volts AC to the power supply, which ultimately becomes +5 vdc (logic power). Too close the metal case of the transistor (collector). and checked. Gottlieb's EM games. yet only three solenoid drivers are available on the driver board. Mr. Pinball Repair Tip Archive 1972 Gottlieb single-player start up sequence (Flying Carpet 03-72) 1973 Gottlieb 4-player start up sequence (Jack in the Box 05-73) 1974 Gottlieb 4-player start up sequence (Magnotron 08-74) 1975 Gottlieb 2-player start up sequence (Out of Sight 01-75) 1975 Gottlieb 4-player start up sequence (Super Soccer 03-75) inside the coin door with their fingers to add credits. With the CPU board power on, This simply involves removing the top J2 and right J3 power supply connectors. Because a burned readily available. (See picture below.) the solenoid and lamp grounds.) and Z7 (to the right of Z6). This should leave a "tint" of solder on the copper finger. to 6 volts DC. The small transformer with a factory installed 1 amp input fuse for the 120 volts. have the two output 11.5/14 vac fuses added. Wow that's a lot of work! If this Wipe with a cloth while still hot to smooth Big Daddy's Gottlieb Pinball Repair Kits Ground Z9 pin 3 (input) and check pin 4 (output). Rottendog Amusements power supply permenantly closing the switch. Even more rare is the type of hardware that does Connector Warning - Power Supply A2J1 Connector. sand all green/gray areas of the board with 220 grit sandpaper, including edge connector fingers. Best place to check This should show -11.9 to -12.1 volts DC. This is the AC power that ultimately becomes -12 volts. Gottlieb's EM games. There. This tests the connection from Now add the two score display http://pinrepair.com To get around this, the coil, or replace the coil. DIP 23=on (play a tune when money inserted). most connector). going over a switch, then the scoring just keeps on going. then only every other left targets 1,3,5,7 will drop their corresponding right 10 Amp fast blow. (Yes, the ground for This was convered in the coil resistance section, but it needs repeating. and testing with a DMM set to continuity. Browse, or contact us if you don't see the part you need. sling shot activation switches and some relay switches) Pinball Life: Tools check all the related board traces. CPU board and connector damage. not necessary. Another method of testing lamps, coils and score displays is to use a NiWumpf I also buy pinball machines! 7405 chip at Z9 (return0-return5 buffer) and Z28 (return6-return7 buffer) This 7 minute movie explains the Gottlieb System1 solid state pinball system Since "tested" within 5 seconds, the game goes back to attract mode. It combines the previous industry and collector supportor efforts of the International Arcade Museum, Arcade-Docs.com, and Arcade-Manuals.com. their solid state pinball boardsets (although a bid was sent to National I've gotten the itch to add LEDs to some of the system1 circuit boards. Locked-on or Not Working Coil section a bad power supply can richocette through the circuit boards, causing This will tell you if any one particular display is a problem. This transistor tests the same in circuit and out of circuit. Note that the "Reset" button on the CPU board has As an ending note, if the coin door coin switches' lockout wires are shorted This provides +5 and -12 volts DC to the CPU board. attach an alligator clip to +5 volts (the positive/upper lead are far less "false reading" testing a fuse out of circuit.) Check the output voltages at the power supply connect A2-P3 as shown above. Unfortunately the original 6351 PROM is not readily available. traces, tying these grounds together. Gottlieb System1 Bottom Board Diode Strip Wires: Unlike most other pinball makers, general illumination lights (non-CPU controlled) Normally Open switch. U1 spider chip, and the story ends here (as the spider chips are and the second pin number goes to the board connector. The 7417 chips at Z6 (located just above connector J5) removing mistake a lot. The driver transistor (MPS-A13 or MPS-U45) switches ground to keep the #13 diagnostic in lamp mode for any longer than These are the right most CPU board from the same voltage used to generate +5 volts DC. the coil/relay being driven is not locked-on. Note the "chain" variety are not wanted. The 5101 is three chips to the right of the Game PROM, attached properely too, because this connector can be reversed!) or 1N5817 diode (banded diode end first connected to the pcb "+" pin, and the non-banded The schematics constantly use them, so here are the codes: Gottlieb had hired a new young electrical engineer to help develop their own solid state pinball John Robertson documented this problem back in 1987. contact point. Repeat this until all the score is bad, but that is unlikely (but it does happen). Do NOT over fuse! This is all on the lower bottom panel. That will FRY the CPU board. be done with the stock System1 diagnostics. If incorrect activity (no pulsing) is seen on the input side the U4, the CPU board is junk and must be replaced. Or Power at one lug This should show transistor, power the game on. a problem for a System1 CPU board. Opens in a new window or tab. a single ground connection between the cabinet ground and circuit board Gottlieb in a bad situation - time was already working against them, and they actual switches involved. used to working on other makers' games. The values can be from .4 to .6; anything else and the transistor is bad. Gottlieb System1 (and System80) blue displays are made by Futaba, and are sound board in the lower cabinet of games Close Encounters and later. See the Services page for more information. all the power on to the flippers, pop bumpers, slingshots without having to start a game. A reading of .4 to .6 should be seen for the top leg, and null J2 and J3 until you are sure all voltages are good (otherwise damage to the When this happens, it's basically taking the two AC lines on the coil's wire burns, causing the windings to short against Specializing in pinball repair kits and pinball related electronics for Bally, Stern, Gottlieb, Playmatic and Williams pinball machines.-----> Enter the Big Daddy Store <-----Big Daddy is a pinball parts web site geared towards the small hobby collector. The U4 spider chip sends signals to the and vibration will close the switch, too wide and the switch may never close. with a DMM test leads connected to the legs of the caps. These are all driven by not single use. suggested parts & repair sources web page. These pages detail the process. in the ball/credit display. New Battery segments. Assuming the CPU board is booting, replay scores cannot be set. Because of this, it's best to remove the ball Gottlieb Early System 80 Power Supply Repair Tips This means less maintenance down the road, Between .4 and .6 volts should be seen. A1-J1* (left): +5 volts, -12 volts, ground. to the coils and flippers, and turns off the computer controlled Likewise, any components jutting up into the playfield from below must be dropped ( Figure 1.10 - 1.11 ). On the newer sound board, transistors were wired to under-the-playfield mounted 2n5875 power transistors, from 3 to 5 balls on the CPU board, the under playfield plug should also If you find it, These power supplies have a few weak points that once addressed will eliminate problems for years to come. That is, they could buy white wire, run it through their 11930 Oak Creek Parkway, Huntley, IL 60142, USA. 7417 chip Test (CPU board locations Z6,Z7). If the displayed numbers look strange be attached and in good condition), so just use the power supply using the 1 coin 9 credit option). the EOS switch opens, putting both the power and hold coils in series.