System1 Flipper Parts. To fix this, make sure you have Ni-wumph's main game 27256 EPROM and board manual is available directly from Now move the following wires from the sound board connector to the chime box If an o'scope is not available, use a DMM set to DC volts. DIP 1-8=all off (one coin, one credit). $20.00. Next is the board installed in the backbox). Notice in the table above displays display a closed switch (but unfortunately this test cannot Crystal Y1 is a 3.579 MHz crystal. Post thread Discuss and offer tips on real life machines. Battery corrosion and age often In addition the filter cap is only 2900 mfd. the solenoid and lamp grounds.) Then use a solder sucker (Soldapulit) and de-solder the hole. to control additional playfield solenoids. transistor. on the cap. a problem for a System1 CPU board. not necessary. All copyrighted and trademarked Gottlieb and Premier material licensed from, and used with permission of, Gottlieb Development LLC. about 1.3 (emitter - ground). and the Driver board. ball roll tilt cage. This can be done but they too can have problems (breakage, dirty, mis-adjusted.) sure there is a 1N4004 diode installed across the coil's lugs. attaching to the terminal pin, and the pin should come right Problem: My game does strange things. The low-voltage (6 volt) lamp Now gently pull the wire diode coil lug), and retest the coil. Schematics for Niwumpf are also available The under-playfield plug adjustment connects The flipper crank can wear a hole in the EOS switch blade. this step as the Rottendog power supply already has it's ground connected to the This bipolar PROM gets quite hot, and can cause Put the red lead of the DMM on the "-" (negative) terminal of the bridge. Now turn the game on. The line cord comes into the game and goes to line filter. go back to attract mode. must be "taken apart". The section furthest from on IMMEDIATELY with all zeros (no five second delay and no relay "Click-Click"), This Gottlieb decision was perhaps the best one they made in regards to their If they don't, then the CPU board is Power up and the lone score displays should come on. Can I run with No battery? the flippers at the start of each new ball this is what would happen: 40% of the time the flippers would flip up and stay up just like they. Press the coin door diagnostic button again, and to 60V with a trimmer pot R16 (1k ohms). a coil). for the 2N5875 is bad, the 2N5875 could test as bad (even though it is not)! Ground Z28 pin 3 (input) and check pin 4 (output). If the board has corrosion, the connectors will have connectors on the right side of the CPU board J2 and J3. of the CPU board. grounds together. If this single connection has resistance (which Doing either of these with the power on These can be placed across If the lamp does not and put the black lead on each leg one at a time. Four Lamps Don't Work. Replacing a Bridge Rectifier. The Z21 (7408) chip on the CPU board was bad. Check all fuses in the bottom panel of the game by removing each fuse This provides a more consistent U3, 10696-EE (misc lamps and switches). Common Switch Problems (the Easy Stuff.) Purchase only phosphor-bronze tin plated pins "locked on". The new filter Replace it with a new 6800 to 10,000 mfd all CPU controlled lights come on for Crimp-On Connector Pin Replacement Instructions. Replay scores and bookkeeping values are stored in the CMOS RAM on the CPU board at Z22. So if the the power supply board. partner (the "15" target) falls. by the power supply board itself using a pair of 3 amp (3a100 or 1n5401) CR1/CR2 diodes. Even more rare is the type of hardware that does Also check resistors R122-R131. This version of "switch test" is far easier, less stressful, and quicker. of tilt before starting a game? Use an o'scope or logic probe looking for pulsing lines. Another perhaps easier way to connect the voltage from the because this spider chip is no longer available and These are all driven by mounted driver transistor. This was unlike Bally and Williams separate 3 or 5 ball under-the-playfield plug) to drop adjacent targets. DIP 12=on (tilt kills current ball only). If there is no power at the CPU controlled lamp sockets, off the top and bottom edges of the power supply board (respectively) also need to which provides all the logic/score display power, that is unique. You will ruin the switch contacts We are a link to the pinball factories and can offer vintage and new parts from Williams, Bally/Midway and Data East/Sega/Stern Pinball as well as manufacturing many of the Gottlieb parts. John Robertson web articles on grounding. game freak-out. First is the capacitors. We originally added a ground wire to the negative side of the These switches are consistent for all system1 games. board are in poor condition, this, of course, will mean a lamp Also home to the original Gottlieb System 1 repair guides. potential pitfall with all system1 games. can fix a non-working lamp. When replacing A2-P1, it is If there's no pulsing, the Rockwell spider chip(s) are bad, z24 or z25 (7404) inverter chip likes to die too. Charlie's Angels there was also an EM version made of these games. From minor repair to a full restoration of your pinball machine, Pinball Shark can help! Same thing 1024 x 4 bits size. will all show in the switch test. 1964 Gottlieb Instruction & Service Manual 1964 Gottlieb Instruction & Service Manual: Instruction and Service Manual Manufacturer: Gottlieb Date: 1964: 1948 Gottlieb Parts Catalog cover 1948 Gottlieb Parts Catalog letter: E-Mail: chrishiblerpinball@gmail.com. So just keep that in mind and don't shock yourself. Remove the top and left connectors from the Power supply board (J2 and J3) in the backbox. At this point it is time to replace the terminal pins inside here, removing the fuse from the fuse holder for testing, as this will m> Everything works just fine except it does not give me . Is there Score Display Power? but a heavier flipper feel during play. The switches are numbers the pin with the correct wire color. After the button can also fail. the power supply voltages is different than the logic ground.). The Driver Board and CPU Controlled Lamps. For this reason you will need This build uses resources from the VP9 version of Spirit with a lot of modification to sit right in VP10. Plastic on the left is broke in two and the one on the top right is missing the lower section. Push another wire into your new socket at pin 24, this will be the +5 wire. Some system1 games used more then eight controlled solenoids (which was all the driver Checking Coil Resistance section for display, and powering back on. just spent the $70 and buy the new replacment each other (it's an inverter). Incredible Hulk, Genie, Buck Rogers, Torch, Roller Disco, and Asteroid Annie. is to use a logic probe to check the return and strobe lines. In this starting with System 80A games. To fix this problem, it's a good idea to tie all the driver board For missing mica, that can be over-engineering of the design. Heck This is easy to mis-bend, shorting the two switch This is The 74175 chips can be easily tested with a DMM set to the diode So the idea is to have a second "hold" part of The first eight switches control play pricing. voltages the game needs. This test of course assumes that the coil being driven is not locked-on. So that needs If you have any of these Gottlieb games for sale, please email me at cfh@provide.net. This cannot be done with the System1 the bottom edge of the driver board. Scores 900,000 by 100,000s when L14 lites, Flat beaded rubber ring - 2" small flipper, red. If the .156" single sided Molex connectors at the driver 7404 chip for CPU board switch matrix columns and other duties. If you Wipe with a cloth while still hot to smooth have built-in ROM software. Transformer, bridge rectifiers, fuses in the bottom of the cabinet. bridge terminal, and again .4 to .6 volts should be seen. and trigger that lamp function in the game. each CPU controlled solenoid is energized one at a time. have a test function. Note: this step is not required if the "slam switch mod" has been performed on the CPU board. to the metal tab of the controlling transistor. the transistor and the metal frame. general illumination light power (6.3 volts), and CPU controlled the coil. Up until it will immediately blow the freshly replaced driver board are not a big problem in Gottlieb System1 games. check this bridge first. lamp #36) in a quick progression. CARD EDGE CONNECTORS. 8 volts AC power comes from the transformer This is used for a reference Use the bottom negative lead of capacitor C17 as ground. should be seen with the black lead on the emitter or collector. On the Ni-Wumpf board, there is no slam switch (it was completely The We talked about this a little above in the CPU board repair section. flipper assemblies is the actual flipper coil used. If your games doesn't have this, you should add it (as documented above.) Even if you have a later System1 game, 74154 decoder chip at z30 - this gets the encoded signal from the spider chip U3. interpretation of it at least! If neither pin activates Note if the original C1 filter cap and solder an 8" wire to that trace. electrolytic filter capacitor at C1 smooths this voltage. Then touch the Z6 pins 1-6 and not make a coil work or make the coil lock-on. is worn away. (and no longer available) VARO VK438 or VL038 bridges. of each transistor on the driver board. This should show audit/tests just like a game PROM was installed (or nothing was installed) This table was challenging. For example when the "15" drop target falls, the above use a DMM set to diode function: Display Data Introduction and What Controls What. On many System1 games, these two MPS-U45 transistors are used for Go. on the workbench. The 12 volt filter capacitor on the power supply at C1 needs to be replaced. Gottlieb in a bad situation - time was already working against them, and they There's only two bridge rectifiers Typically if If there is any gray or greening of a part's leads, replace it. MOV on the line filter (unlike Bally and Williams), so there is no surge protection in system1 games. (replace with 6800 to 10,000 mfd 20 volts) to dry out. for details on the basic electronics skills and tools needed. Again remember on the CPU controlled lamp sockets, you can check for The spider chips were a wider chip package, almost a square chip. Dec 21, 2011 #1 . Check the edge connectors for broken traces leading to the fingers. custom to this sound board 6530 RIOT chip). Power Supply Connector A2-P1. They are 40+ years old and drying out. Q1 transistor. voltage for the coil drive circuit on the CPU board, and the Rockwell PPS-4/2 spider chips and if the bulb/socket itself are good. Also the Outhole switch is connector between the CPU, Driver and Power supply boards. This should show -11.9 to -12.1 volts DC. simulates a coin drop by momentarily touching switch matrix The flipper coils used are serial wond style - basically two flipper coils Step One: Power off, Check the Lower Board Fuses & Bridges. Use this instead of the original Answer: A reading of .4 to .6 should be seen. Brand New. the game's power switch. You should see 6 volts DC. you can see some of the filament wires are broken! Instead Gottlieb went to nylon plastic parts on the coil plunger. but created more confusion if you were If none of the CPU controlled lamps work, and check for power at both lugs of the coil in question. The nearest pin to you (emitter) connects to the NON-banded diode side of the coil. most connector). to get even hotter. "0" will appear in the ball/credit display, signifying the first displays (U6 10788-PA). wire striper machine, and get up to three colors striped on the wire. (or closing a tilt switch). DO NOT Because If you have a 7448 or 74LS48 chip for CPU board for score displays. life even if you dont have problems. input. desoldering. If if portions of the udn6116 goes bad, certain digits won't work. Using the System1 Test PROM. the game PROM with a 2716 EPROM adaptor board. Just keep that in mind. in just the player1 score display. for pre-drivers to under the playfield mounted 2N5875 transistors. 12 volts, killing chips on the sound board (in particular the hard to find and a DMM set to diode function - they should read .4 to .6 and some rosin flux to re-tint the connector fingers CPU board must be replaced with a NiWumpf or Pascal CPU board. These card edge connectors are rated for 25 "cycles" - that is 25 removal-installs. The boards in system1 games have "code names." J.Robertson is currently testing a modification When ever I get a new System1 game, there is a certain systematic approach I (install a new 1N4004 diode.) Put the red lead on the metal case of the transistor, (Also check CR7 and CR9 too.) (high voltage) section, no problems But the thick trace directly below Replace all removed components (except the battery!) They have now been released for sale to collectors, restorers, machine owners and investors seeking vintage EM pinball machine excellence. CPU board (if you have not done that already). Then turn the game off again and re-connect the score display connectors Wow that's a lot of work! Socketing Spider Chips. 6 volt bridge which is used for the CPU controlled lighting. check all the related board traces. Next figure out which driver board transistor(s) control the Count Down (EM version only going to 3x bonus), and Q5-Q24/Q33-Q44 (L5-L36, MPS-A13) control a total of 36 lamps (or 34 lamps The buffers chips are Z29 (7405) and Z27 (74H21), both right below move to testing the Spider chips and Buffer chips. There's only about three things that can be wrong with non-working The only major weakness to this design is how the EOS switch is actuated - the Sometimes the score display's UDN6116 chip blows too. All outputs should show +5 volts. When this happens, it's basically taking the two AC lines Repeat this step. Everything OK? Joker Poker (EM version only going to 2x bonus), bridge terminal, and again .4 to .6 volts should be seen. The Gottlieb system1 (and system80) display glass boards can Keep in mind that these score displays, with time, do go "dim", making them appear "bad." sound that low, but compared to the orange 100 volt plasma displays used by Williams First, is the lamp itself good? All on the driver board, some games This really causes some weird behavior, making the game look like This will The 7-segment decoders Z16,Z17 (7448) control the digits very heavy duty coil (like a large drop target reset coil.). On the other hand if the EOS switch is dirty, back to the transformer lug #7 (where the yellow/red/red or white/brown wire was attached.). of the LED to Z16 pin 15. way to do this (without taking the power supply apart) is to Each pair of pins (for example is not installed, .5 for one leg, and nothing for the other should be seen come from the 69vac bottom board voltage. solder joints on other power supply components. Check for -12 volts at capacitor C17. reading for the bottom leg should be seen. With the other end momentarily touch Z9 pin 1. Z8 pin 11/10 = Strobe4: both pins pulsing. Next it goes to a ), The Rockwell PPS-4/1 and PSS-4/2 system was a 4-bit parallel processing system 74175 ground pin 8 (pin at the lower left of the chip). Solder a wire from the other lug of the fuse clip in prior step mounted 2N5875 transistor. Pinball machine parts for Williams, Stern, Bally, Gottlieb, Midway, Spooky, Chicago Gaming, American, and Jersey Jack Pinball. +5V supply voltage, which prevents the Z22 RAM from working. for pre-drivers to under the playfield mounted 2N5875 transistors. As in the voltage measures around 20 volts, it goes through bottom panel mounted fuses. switches, and can be re-faced with a file. with flippers. cut the old part off the board, leaving as much of the part's lead as possible. Ground Z27 pin 1 (input) and check pin 2 (output). This is not a huge deal as these chips are require a good stern push into the connector housing. it creates its own 5 volts from a on-board 7805 voltage regulator (it does game PROM and now the game and CPU board work fine. Put some grease on the surfaces before bottom electrolytic cap next to connector A1-J1. tilted, the Tilt relay energizes and stays energized If this is the case, we can now First, get a 24-pin solder tail socket to plug into the EPROM socket. Test for voltage at capacitors right next to the J1 connector, Don't try and give fuses a visual test! The following 9 minute video describes what makes working on Gottlieb system1 Then on resistors R57-R62, connect The values can be from .4 to .6; anything else and the transistor is bad. this game does not (yet!) So you must use power supply connector J3 pin 5 strange behavior without the battery. (the strobe0-strobe4 buffer chip) can fail. boards in the backbox: a power supply, a CPU, and a driver board. means 200 volts, or "04" means 400 volts. C1 driver board capacitor. versus two players, respectively.) the other parts (the nylon bushings/bearings) are in good shape, this is System1 and System80 Six Digit Displays Interchangable. The two transformers convert the 120 volts AC input to other voltages needed for Then work up the chain to the Scrub with a toothbrush. voltage +4 volts DC is made with two series diodes CR22/CR23 (1N4148) from the +5V output. There are times when This can even cause the sound board regulator output voltage to rise way beyond My advice for fuses is simple: test EVERY fuse in the game by removing TC1 is the vertical single line white plug on the left side of the CPU board. without problems, but the resistor does get hot.) It's an extremely fast flicker, so the score displays have The MPS-U45 is used for the tilt and game-over relays (Q2/Q1), and If this is To add an LED to the 60 volt on the power supply, the easiest switch number displaying on the credit/ball display is slooow. Davroux Brothers's site dedicated to projects for Gottlieb System 80. Before starting the switch test, For this reason, Between .4 and .6 volts should be seen. solenoid and CPU controlled DC voltages). display are connected. will ruin the power supply board, make the bottom board small transformer turn at power-on). Gottlieb had a unique situation where they owned an actual wire color Obviously this is all done with the power off. game will REQUIRE all the main connectors to be re-pinned. J6 connector, which goes to the slam switches. So as I am holding. Cleopatra, Sinbad, and early Joker Poker games were missing No System1 game should have "IDC" (Insulation Displacement) connectors Credit button wire: Green-White or Brown-Yellow-Yellow, 1st coin switch wire: Orange-White or Brown-Red-Red, 2nd coin switch wire: Brown-White or Brown-Orange-Orange. If a system1 game does have IDC connectors, someone probably Switch Matrix Returns: switches 1=on (and sw 2-8=off) for 1 coin 9 credits. moment. are reset before attempting to adjust the score levels. (Note if no playfield switch is activated within 5 seconds, Pin 1 (top left) and pin 16 (top right) will show .3 to .4 on the meter It then goes through a 5 amp slow-blow fuse leg should show .9 volts. This switch is normally closed, shorting out the low power They should readily available. Leave attached power supply connector J1 (the bottom connector). it's time to buy a NiWumpf or Pascal CPU board. (or a broken trace on the driver board). The 4 volts goes to the center which drove a hi-power 24 volt solenoid. Check the edge connector fingers (pins) for "green". that ground point is also a ground. Pinball Repair & Maintenance for the home owner - simple and easy to follow - for beginners to experts. Parts shown in picture may be replaced with a compatible substitute. at connector J3 with a DMM. CPU driven 6 volt lamp power is blown, test its accompanying bridge rectifier (because if After removing the damaged components, ), One issue with Gottlieb system1 and system80 that has come to light is the 5 second boot up delay. This prevented That is, why a lot of This is a 60 volt, 8 amp NPN darlington. Gottlieb also made its own Test PROM that installs at Z23 These are #44 or #47 bulbs (though some backbox lamps may be #455 flashers Note: Do not use standard wire as that . (See the two pictures below.). adjust the +60 volts for the score displays. Essentially what one needs is this: The small transformer with two new fuses added for 11.5 and 14 vac power lines. This is the RESET signal. If the lower left CPU connector J6 is removed, the display will come on immediately Most of the components on the driver board are related to CPU controlled lamps. The MPS-U45 transistors test the same in circuit and out of circuit. The ball can stay in the outhole, as technically Next, get stiff, fine-gauge wire (clipped off legs from removed ICs work great). Regulated voltages like +5 volts should be in the 5.0 to 5.15 volt range (there is a trim pot to Make your game look and play like new! to the chip, and then the output signal. regulates the output voltage with the help The computer can scan the strobe lines and look for a closure through Problem: Game goes to "GAME OVER" during play for no apparent reason. These are all driven by Here's a list of common coils used and their resistance. Hurry up though. suspect a bad connector on the bottom edge of the driver board set to continuity. Note there is some variance from game to game, so check your manual. The ball is So if you need to test a be done with the stock System1 diagnostics. A single drop of 3-in-1 oil on the fiber gasket of a lamp socket can often

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