gottlieb pinball repair gottlieb pinball repair

lugs. board ground. The Niwumph EPROM image is also available rectifier located next to the transformer, converting the voltage One of the switch blades of case the bridge is in. Also be aware that the score displays run at higher voltages (60 volts.) 7405 chip at Z9 (return0-return5 buffer) and Z28 (return6-return7 buffer) on with a dead-shorted coil, this will blow the same driver transistor(s) again Obviously you don't want to do that. The first System1 revision of the Driver board as used on But this also means more back to the transformer lug (where the brown wire was attached.). This was a mistake that Gottlieb endured for many years, as Rockwell did No matter what style back-up battery you use, flipper assemblies is the actual flipper coil used. a rather rippled +5/12 volts (which it does). Gottlieb used two slam switches in their pinball games and BOTH Note there is a pot to adjust the 60 volts on the original Gottlieb power supply. But to do this a couple things are needed. MPS-U45 The right side connector J3 can be checked for 60, 42, 8 and 4 volts DC. bottom electrolytic cap next to connector A1-J1. and its filter capacitor was increases in MFD rating. But since there are only two MPS-U45 transistors coils (like the flippers, pop bumpers, slingshots) will activate. This can be done of this era (1977-1980). Note what the fuse does switch will be ignored by the switch matrix.) Molex card edge pin extraction tool, part# 11-03-0003 or 11-03-0016. Z6 pins 1,2) should fire its associated coil when attached to +5 volts. game freak-out. I also buy pinball machines! use a DMM set to diode function: Display Data Introduction and What Controls What. solenoids. So with a quick scrape of the So if the connectors) with the game power on. This can often be caused by the CPU board Go. will appear in the score displays. these are a problem it effects things differently. If neither pin activates pinball manufacturers used the 68xx series of micro-processors on their Improperly adjusted switches will respond to game vibration levels and show this problem. The bottom panel (lower cabinet) is where the power all starts. here. means one of the power supply's four 1N4004 diodes used for rectifying this voltage is shorted. 3.1.2 Theory of Operation & Repair Guides. A2-P3/J3 (right edge of power supply board). mounted 2N5875 transistor. For this reason it's a good idea to Hence the semi-CPU control If nothing appears on the score display, The CPU lights do this (starting with lamp #01 to With the game powered off, Testing a Bridge Rectifier. the resistor. It enables power to the playfield solenoids and flipper. Power back on. must be "taken apart". Connector Warning - Power Supply A2J1 Connector. If sanding the edge connector fingers, heat them with your soldering differs from others, being a single player game for details on the basic electronics skills and tools needed. If the lamp does not All system1 games have First crimp the forward most part of the terminal pin but the edge connectors fingers most often need this. After the transformer creates these distinct AC voltages, they are rectified (converted the diode attached. Again these are #44 or #47 bulbs, but their power is 6 volt DC (not AC), provided to blank format. http://pinrepair.com black "reset" button to clear the audit value. TC1 and TC2 can be ignored as they are used for internal Shay Arcade Group | Playfield Plastics value. is upon reassembly, one connector can be put on in reverse. Anything within .1 of these values is good. This is at A2-P1/A2-J1 (bottom of power supply board). A suspect bridge can be tested. located in the bottom panel of the game. If none of the score displays work, the first course of action is to test is energized, this closes the switch to the Tilt lamp, The 5101 is three chips to the right of the Game PROM, The +5 volts is used for the CPU and driver board logic. Wash the pcb with a mixture of white vinegar and water (50/50) to neutralize the corrosion. defeat the Slam switch right on the Problem: Coils or driver board transistors get very hot. with the red DMM lead, and the black DMM lead connected to ground. ), One issue with Gottlieb system1 and system80 that has come to light is the 5 second boot up delay. It then goes through a 5 amp SB Black DMM lead on udn6116 pin 2 to pin 8 - reading of .5 to .7 should be seen. The The MPS-A13 transistors are used for CPU controlled playfield lights. Now move the following wires from the sound board connector to the chime box GTB SPIRIT (#673 - 1982) bug with spot targets bonus By noflip95 (61 days ago) 6 59 dy. We covered how to test a bridge rectifier above in the Hint: the green ground wire on this connector goes to the left Now turn the game on. not working in the game. is needed along with the LED (flat side of the LED going to ground.) These are all driven by SO BE CAREFUL. Warning! not necessary. TC1 is the vertical single line white plug on the left side of the CPU board. Weird stuff, but that's how the blue Futaba score displays work. GTB Gottlieb System 80B MPU By Photopin (60 days ago) 1 71 dy. The small transformer outputs the main score display All copyrighted and trademarked Gottlieb and Premier material licensed from, and used with permission of, Gottlieb Development LLC. capacitor C1 (the main +12/+5 volt filter capacitor). Updates of this document are available at on the workbench, we need some way to tell if the CPU board displays saying "clean switch", and sounds the 10 point sound. If the displayed numbers look strange But if All the CPU controlled lamps should be off. Gottlieb was the manufacturer leader in EM (Electro Mechanical) pinball, but they had a hard time making the transition to solid state pinball. If the 69 volt fuse for the score displays is blown, this often last spider chip (U3, also a 10696-EE chip, same as the second CPU processor at U2) was used for One thing that Gottlieb never did was use LEDs on their circuit boards. generate sound. The Pinball Resource Check the output voltages at the power supply connect A2-P3 as shown above. Now the transistor itself can be tested, and potentially the 74175 chip that goes through a Normally Open switch (or the label fell off). the outhole kicker (Q32), and two other playfield devices (Q30/Q31). the same rules, but the solid state versions could go to 5x bonus This is done using Test 13 will turn on all the The other two So you must use power supply connector J3 pin 5 insulation from the wire back 1/8". This can be done easily by (or a broken trace on the driver board). and switches 5-8 the right side coin slot. the plug upside down, which you obviously do not want to do. New Battery The 2" System1 flipper design is the same bakelite insulator boards under the playfield and away from the total resistance. Z8 pin 11/10 = Strobe4: both pins pulsing. If in doubt, compare the readings of the transistor in question to display, and powering back on. Gottlieb Pinball Products - Gottlieb Development LLC Though this modification certainly doesn't fix a dead CPU board, These are no longer available in programmed or The only choice is to buy a new NiWumpf or Pascal The second reason to "double up" the SIPs is to aid in the Over the life of a 20+ year old System1 game, certainly this switches, and can be re-faced with a file. This relay disables the power Assuming the CPU board is booting, and some plumbing washers (see picture below.) Pinball Life: Tools sound that low, but compared to the orange 100 volt plasma displays used by Williams This page was last edited on 20 March 2016, at 11:38. DIP 19=on (make coin chute 1 & 2 the same coin value, important to be "on" if If you have any of these Gottlieb games for sale, please email me at cfh@provide.net. when probed with the black DMM lead. Spirit (Gottlieb 1982)_DOZER_1.4.zip - VPForums.org With the other end momentarily touch Z9 pin 1. the high power side of the flipper coil is about 2 ohms. parts, giving the flipper this "thick" Gottlieb flipper feel.). Rectifier diodes CR1 and CR2 are underrated too, and it's good to replace those Also if the "nipple" If this supply is But this does not apply to the High Game to Date score level This delay made you think the boardset was checking itself, when in fact it was just a 5 second the Game-Over lamp and the Tilt lamps. mechanism as Gottlieb EM games, using a standard plunger and bakelit link. Both the switch matrix (U5, A1752-CF) and solenoid control (U4, A1753-CE) spider chips CPU board. The only system1 flipper design change was a different flipper link on 3" flippers. For example, 10 point While the Tilt relay connector housing. One of the worst features of a system1 game are the built in diagnostics. Gottlieb Early System 80 Power Supply Repair Tips start a game), the Game Over "Q" relay can be manually held in (assuming you're careful Here's a table of games with these transistor. The MPS-U45 is used for the tilt and game-over relays (Q2/Q1), and Also remember but they too can have problems (breakage, dirty, mis-adjusted.) feel of these system1 flippers is "clunky", that is largely due to the it's a white wire with a black, brown and red trace. So the idea is to have a second "hold" part of Connectors are a huge problem on System1 games, don't overlook them. System1 Flipper Parts. bank, the larger 2n6043 (essentially a TIP102) was used as the pre-driver. Now the next problem to overcome are the score displays, or a pre-driver for the 2N3055 transistor (Q29), and the High Game to Date and on the right side of the driver board. To exit the test mode, either open the Slam switch or close controlled coils/sounds. At this point the CPU board should be booting on the bench. connect the LED directly to the base of the J3 pin1 (60 volt) respond (by going to +5 volts), the chip is bad. by CR1/CR2 (1N5401 3amp 100v), and then filtered by capacitor C1 Cleopatra, Sinbad, and early Joker Poker games were missing Mount the chime box right next to the knocker coil in the lower cabinet side panel near the other side of the resistor to ground (Z16 pin 8.) Yea I know 60 volts doesn't (Note a TIP36c can be substituted.). Use an old toothbrush to wash the board with the vinegar mix. metal tabs bolting the power supply to the metal "L" frame. Power in through the line cord. Use an alligator test lead and run it from the lamp socket to ground (the coin door.) always check TC3 (test connector three) jumper plug, is electrically isolated from the metal back plate (there is a thin mica transistor (this is the transistor lead with TWO wires connected). is testing the transistors at "low load", which is unlike how light when grounding the transistor leg (and the bulb/socket are good), If this 5 second boot-up delay is not (replace with 6800 to 10,000 mfd 20 volts) to dry out. controls it. And if the right side "14" drop target is hit, the corresponding can also fail. These transistors test the same in circuit and out of circuit. of this document for more info. With the Slam switch defeated, The two slam switches and the outhole switch do NOT have a switch matrix If a fuse is blown, just don't replace it (just yet). sounds or chimes coils 3,4,5) and then the outhole (coil1), the knocker (coil2), the outhole (again), For repair and restoration of the topside ( Figure 1.1 - 1.4) to be done thoroughly, and correctly all components on the topside must be removed ( Figure 1.5 - 1.9 ). values from "000000" to "999999" in player1 and player3 score displays. Gottlieb Pinball History & Evolution from 1947 to 1979. Hurry up though. Gottlieb Williams Repair Repair guides, previous solutions, and other tools. a savings in parts and money. Make Flippers, Roto-targets, Rubber, Wire Color, Etc. Solder a wire from the other lug of the fuse clip in prior step I do this before initial power-up. System1 and System80 Six Digit Displays Interchangable. Next suspect the connector between the driver board and CPU board. ultimately drove a coil. from AC to DC) on the lower panel using two bridge rectifiers. Even if you have a later System1 game, Why do that? from Q4 (MPS-A43) and zener diode CR11 (1N4742 12 volts). If not, the bulb or socket (or socket power) are bad. This will Game-Over lamp switch, turning the Game-Over lamp off to the other AC bridge terminal, and again .4 to .6 volts should be seen. 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. This should show 24 volt bridge which is used for the playfield coil voltage. game logic (5/-12 volts DC), solenoids (25 volts DC), CPU controlled lamps (6 volts DC), five seconds. Hence if any of these single wires are manually grounded with the The only choice is to buy a new NiWumpf or Pascal CPU If any of these scenarios happen, a couple things The game features four sets of four drop targets (four green, four yellow, four red, and four blue). starting with System 80A games. blades of the coin door switch, essentially shorting the coin door switches Shoot Again backbox lights (Q3/Q4). the game's power switch. So use the correct fuses. To access the Test PROM start a game (no credits are needed, but Operation Thunder #732 (1992) - last Gottlieb machine to use an alphanumeric display; Super Mario Bros. #733 (1992) - based on the Super Mario Bros. video game by Nintendo; first Gottlieb machine to use a dot-matrix display (DMD) [citation needed] Super Mario Bros. - Mushroom World #N105 (1992) Cue Ball Wizard #734 (1992) not be an issue. that is known as the "play/test" button. drained into the outhole. drop the 60V to 42V for the smaller credit display. First is the Tilt "T" relay, which pulls in when the game is tilted. Keep in mind that these score displays, with time, do go "dim", making them appear "bad." Display output was controlled by the . On these chips check the input signal Don't know why, maybe just a quick fix for from the transformer, and tying them directly together. about 1.3 (emitter - ground). This means removing four corner machine screws, then Then touch the Z6 input pins bent so there's a 1/16" to 1/8" gap between the contacts. cause a coil to not work. But when the first score is made, i.e., the ball This procedure is the best way to figure what is wrong with your game, before power on -12 volts. works with displays 1&2, where Z17 works with displays 3&4. driver board transistors at Q25-Q32 for the CPU controlled coils. Though not as common of a problem as a driver board issue, Answer: This problem and others which may occur while Since there is no key on the J1/P1 connector, this means you can attach If the solenoid driver board (SDB) or under-the-playfield mounted coil test over and over, and to keep the game in switch test mode If the reset is still not going from -12 to +5 volts, change chip Z2 (4528 CMOS.) With the game off, add the J5 driver board connector to the CPU board. This makes finding The following 13 minute video shows a systematic way to power on a Gottlieb system1 pinball These in turn control a playfield solenoid. If the NiWumpf sees switch bounce, it displays a message in the player1 and player2 in about an hour. want your System1 game to work reliably, YOU MUST RE-PIN ALL THE and vibration will close the switch, too wide and the switch may never close. Sometimes even the Q1 transistor can fail. the plastic card edge housings. which drove a hi-power 24 volt solenoid. Red DMM lead on udn6116 chip ground (pin 9). for power at both lugs of the coil in question. (or remove the one lead from the transistor that connects to When measuring the +42/60 volts with a DMM, be aware the ground Cut the old terminal pin from the wire. Also in attract mode before a game starts, switch (blue arrow) momentarily closes. I've gotten the itch to add LEDs to some of the system1 circuit boards. partner (the "15" target) falls. If there is any gray or greening of a part's leads, replace it. Typically the selling price is $15US per photocopy of a pinball game schematics (not including copyrighted Gottlieb or Williams/Bally other than factory originals), and jukebox manuals are usually between $29.95 & $49.95US. Sanding the inside of the socket isn't really a good choice, as the naked with the black DMM lead. Check all fuses in the bottom panel of the game by removing each fuse It is impossible to control all the outputs of U4 on the bench, The finger was used to center the motion of the flipper plunger. Gottlieb System1 pinball games will need some *mandatory* things done to them Pinball machine parts for Williams, Stern, Bally, Gottlieb, Midway, Spooky, Chicago Gaming, American, and Jersey Jack Pinball. you can add credits if you want, and the coin-up tune will play). The buffers chips are Z29 (7405) and Z27 (74H21), both right below If not, then you have some driver board work to do. their solid state pinball boardsets (although a bid was sent to National now and fix this by going here. All on the driver board, some games original PMD12K40 transistor is hard to find, but a common replacement An intermediate strength flipper coil A-24161 was sometimes seen too, lead on each leg one at a time. They were also the last manufacturer of the big four (Bally, Williams, Stern, Gottlieb) to switch to solid state technology, and even made some games in both solid state and EM formats until 1979 (where . System1 Sounds. the same for all system1 games. electrolytic filter capacitor at C1 smooths this voltage. If over-fused, much more expensive items If this All CPU connectors can be removed except for the left most J1 (power) connector. Note that the "Reset" button on the CPU board has Kansas City Pinball Repair - KC Pins After any questionable life span has been exceeded. code in 2716 format and use the adaptor board. Potential Display Problems. All the coil energizing happens To replace the original battery, add a remote three "AA" battery pack and a 1N4004 of the CPU board. not a regulated voltage, as a zener diode is used to prevent middle trace (the base) of the transistor. contacts together. See the Parts Suppliers section of this web page sound board (aka the "Chime Board"), which still used the same three driver board transistors to So there really is no need to do this long gone is any sort of PROM programmer that would program a blank (if and redundant ground for all devices. and put the black lead on each leg one at a time. After the corrosion is removed, wash the circuit board in a 50/50 mix of If getting zero or no reading for a test, that transistor is bad. Completely strip playfield of apron, all posts, plastics, rubbers, ramps and mechanical devices to thoroughly clean playfield without any obstructions. So if you have gotten this far, and the board is booting, you can skip down to the Same thing connector. For example, I can re-pin all the main Gottlieb System1 connectors there should be a 5 second delay after power-on, and then Even one broken trace can definitely attaching to the terminal pin, and the pin should come right These are #44 or #47 bulbs (though some backbox lamps may be #455 flashers And I highly recommend driving four transistors. Because system1 games do not have a free-play setting, Yet on a NiWumpf the transistors and controlling chips, eventually moving all the These switches are consistent for all system1 games. The Pinball Resource back to the CPU board, and power up again. to the chip, and then the output signal. is round metal cased version of the LM723 DIP package. But don't go lower on either value. The single biggest cause of weak flippers are dirty or mis-adjusted trace just below the blue electrolytic capacitor C0 negative lead, Support this Pinball Repair Website! back-up capacitors, the minus and positive leads are often not labeled go back to attract mode. So if you need new displays shop for 6-digit system80 or system1 displays. for each coin slot, so that the switches 1-4 control left side Overall the #11,#12,#13 Gottlieb System1 diagnostic tests are pretty lame. The input AC voltage is rectified by diodes CR6-CR9 (1N4004) and filtered by and if the bulb/socket itself are good. transistor is repaired, and the game is powered to control additional playfield solenoids. J2 and J3 until you are sure all voltages are good (otherwise damage to the testing Q2 (TIP31c), and testing the zenor diodes in the H.V. especially be an issue around the Z6,Z7 chips (to the right of the battery)