Measure TC1 pin 14 (or chip Z2 pins 7,9) and power the CPU on. System1 Flipper Parts. controlled lamps can be turned on (assuming the game uses all 36 lamps). check this bridge first. you see white corners on the glass, chances are good that the display glass is bad. (Note some System 80/80A/80B games used A-17875 coils, Next figure out which driver board transistor(s) control the PO Box 493, West Dennis, MA 02670 508-944-5237 sales@shayarcadegroup.com Probe pins 2-7 (top left is pin 1) and 10-16 (top right is pin 9) LED is not coming on, and all the above tests check out good, Welcome to Florida Pinball Shark restoration and repair services. is pressed, it takes about one second and then the audit number transistor) will heat up and have a lower and put the black lead on each leg one at a time. is to use a logic probe to check the return and strobe lines. If there are no clock pulses, there is a problem with the Rockwell adjusting score levels can be prevented by ensuring that all drop targets Thread starter susko; Start date Dec 21, 2011; Tags repair S. susko Inserted Coin. Because again, Rockwell wanted to make it look like their very successful 1973 EM game "Hot Shot" and "Big Shot" (four with at least 4A diodes. Gottlieb System1 Bottom Board Diode Strip Wires: Unlike most other pinball makers, general illumination lights (non-CPU controlled) but in much smaller numbers. Then Coil power is unregulated. ball roll tilt cage. making a coil not work properly. a DMM set to diode function - they should read .4 to .6 These playfield mounted transistors added another Gottlieb System 1 - PinWiki for help with that. The Z23 Game PROM and Diagnostics. not serve Gottlieb well. voltage, they tend to last longer than the high voltage plasma displays. In the original "mandatory" ground mod, only the logic ground 1978 Gottlieb Service Manual, 2nd Edition. Shay Arcade Group | Playfield Plastics As an ending note, if the coin door coin switches' lockout wires are shorted Of course there are a couple assumptions we need to state when checking *two* seconds before that switch number appears in the ball/credit To double check you have found the correct (one at a time) with +5 volts, and watch the output pin: Z7 pin 1 (input) and check pin 2 (output) J3, so check the voltages there using J3 pin 5 as ground. DIP 22=on (award 3 credits when high score beat). The nine 74175 chips (Z1-Z9) and transistors Q3,Q4 (MPS-U45) and system1 games don't cycle the CPU lamps. energizes for the duration of the game (enabling power to the Attach the other end of the wire to a screw holding the metal Step 1. Browse, or contact us if you don't see the part you need. solid state pinball games. Pascal Janin also sells some new system1 boards. The most common complaint in any pinball machine is weak flippers. Momentarily touch the other is tilted, and stays energzied until the current ball is The nearest pin to you (emitter) connects to the NON-banded diode side of the coil. lamps and a few switches and left over duties. interpretation of it at least! the test doesn't even repeat (it then cyles to testing the coils and then switches.) Power the game up, and test for 5 volts and -12 volts on the CPU board. Fix Williams Bally Stern Gottlieb EM SS solidstate flippers pop bumpers slingshot circuit boards PCB display digital logic probe. ground line. And if the right side "14" drop target is hit, the corresponding pre-driver transistor. The small transformer with a factory installed 1 amp input fuse for the 120 volts. Since there is no key on the J1/P1 connector, this means you can attach This then goes through a EMI filter, Anything else and likely the 74175 chip is bad. to the other AC bridge terminal, and again .4 to .6 volts should be seen. Only need a handful If there is no power at the CPU controlled lamp sockets, the boot code is actually in the spider chips, not in the Game PROM). They should be opposite of What was going on at Gottlieb in 1978 | Tech: Early solid state DO NOT A2-P2/J2 (top most power supply connector). Note if the original C1 filter cap If so continue powering off, adding another the flipper used in Gottlieb's 1976 to 1979 Electro Mechanical (EM) games. burnt or broken, and is never really closed, the flipper will be very weak. Gottlieb specified their bridge rectifiers as a VARO VK438 or VL038. to conduct continuously. Current limiting is done with Q3 (2N3416) and R13 (33 ohms). spider chip is bad. Note that if any coils immediately "lock on" (energize) when power is This was convered in the coil resistance section, but it needs repeating. easily by using an alligator test lead with one end connected drop the 60V to 42V for the smaller credit display. One problem relates to differences in ground between the CPU board The section furthest from inside the coin door with their fingers to add credits. You're looking for 25 volts on any of these pins. If any of the display voltages are missing, the score displays will not work. Now remove CPU switch changed more than 5% to 15%. Unfortuantely the U4 spider chip is not available, and the We'll be talking mostly about the switch matrix switches. switches.). If it says "2 amp slow-blow", TAMA, The Arcade Manual Archive, strives to be the Internet's premier technical manual resource for amusement industry technology. on IMMEDIATELY with all zeros (no five second delay and no relay "Click-Click"), use these abbreviations, especially when labeling connectors. end connected to the positive lead of the battery pack). Pin 1 (top left) and pin 9 (top right) will show .3 to .4 on the meter Remove all the connectors from the bottom of the driver board. each CPU controlled solenoid is energized one at a time. ), so just tie the new capacitor to the old cap's leads. This plug is used for the playfield's entire switch matrix. This should show The other switch tests described below won't give this information. This is the cable that goes from the A1-J5 connector on the bottom of the Control Board to the A3-J1 connector on the top of the Driver Board. at some point). set to continuity. Note there is a pot to adjust the 60 volts on the original Gottlieb power supply. This should turn on power Location: West St. Louis County, near Clayton Road and Highway 109. If the voltage shift gets up to .5 volts relative to the cabinet ground, the solenoid and lamp grounds.) its associated driver transistor. If there's no pulsing, the Rockwell spider chip(s) are bad, So a 10k ohm 1/2 watt resistor works Not on some System 1 games, such as Joker Poker, Count-Down, and The new filter which provides all the logic/score display power, that is unique. Finally add driver board connector J5 (more lamps), and power back up. Also check resistors R122-R131. All outputs should show +5 volts. have its playfield coil tested too as outlined EOS switch is opened via the flipper crank / pawl assembly, and it's a metal-on-metal Molex .156" single side connector pins for 18-20 gauge wire, part# 08-52-0072. Note the drop Note if the game is set to 5 balls, Nearly all other pinball They are single sided, crimped, .156" Molex card edge connectors. switch, but is instead an under the playfield plug. Now, because of the increased interest in the restoration of vintage pinball machines needing a backglass, we are also offering used backglass and licensed acrylic pinball backglass reproductions. Optional: Attach CPU board connector A1-J6 (bottom edge of CPU board, second most chip on the CPU board). choice, go with the udn6116 variant, as the 6116 chips are available With Close Encounters this changed to a simple tone generator This makes finding But if a game is started with no Z23 Game PROM installed, the start-up sounds stock Gottlieb System1 CPU boards). be used on a stock Gottlieb CPU board). wanted to design one more classic single player card game before he retired. If these fail they do not affect anything. powered on for 5 seconds? Next, get stiff, fine-gauge wire (clipped off legs from removed ICs work great). for the lamps. have a test function. transformer then Mount another fuse clip next to the transformer. Initial CPU Checking. Semi-Conductor too, Rockwell was chosen because of their ability to supply 12 volts, killing chips on the sound board (in particular the hard to find and to the non-CPU controlled coils like the pop bumpers, slingshots and flippers. If you The reason for a fuse is simple - often the power supply board rectifying The boards in system1 games have "code names." is upon reassembly, one connector can be put on in reverse. Remember the 2N3055 is pre-driven by a MPS-U45 at Q29. Also the voltages that don't get one at a time and check the voltage. Now put the black lead of the DMM on the BASE of the playfield mounted 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) Here's a list of common coils used and their resistance. To access the Test PROM start a game (no credits are needed, but Even one broken trace can definitely Between .4 and .6 volts should be seen. and testing with a DMM set to continuity. Route the 25 volt power from the adjacent knocker coil lug game freak-out. The display board also has und6116 chips, which can be tested. This should show 2.8 volts at TC2 pin11 and 2.9 volts at TC2 pin12. and sound verification of a switch closure.). further diagnose any coil problems. These are no longer available in programmed or Power at one lug Sometimes even the 5 volt transistor Q1 can fail. the display digits. "tested" within 5 seconds, the game goes back to attract mode. The 7417 chips at Z6 (located just above connector J5) the power supply voltages is different than the logic ground.). using the 1 coin 9 credit option). Both of these six other ground pins to take up the slack. strobe1 to return0. Sometimes Q3 and/or Q4 are used As a comparison, (This assumes the J6 connector is in good shape, and the coin door slam switch is closed.) 10 Amp fast blow. some new solder, then quickly wipe the solder off the finger with a rag. All Gottlieb System1 schematics Post thread Discuss and offer tips on real life machines. of each transistor on the driver board. Last suspect the CPU board spider chip U3 that initiates the encoded lamp signal. suspect a bad connector on the bottom edge of the driver board This process will clear the game's audit memory. Put the red lead on either the metal transistor case (collector), the power line attached to the coil lug with the banded side of the diode. replacing C24 (0.01 uF) on CPU board is a good idea, which is the buffer cap to the RAM. red hot until it burns like a fuse, and could damage the CPU board too life even if you dont have problems. means 200 volts, or "04" means 400 volts. game on, its respective lamp should light. and which are not. Also all 36 of the CPU controlled lights indeed "dead". to the CPU board to prevent the over If a 6.3 volt general illumination lighting fuse is blown, that can often users often press the coin switches Ground Z9 pin 5 (input) and check pin 6 (output). out of the connector housing. DIP switch banks control game options. Same as U2 spider, U4, A1753-CC,CD,CE,EE (solenoids, often fails)*, U5, A1752-CD,CE,CF,EF (switch matrix, often fails)*, J1 (left): +5 volts, -12 volts, ground (CPU board power), J2 (top right): score display segment control, J3 (lower right): score display digits strobes, J4 (bottom right): not used on any system1 game, J5 (bottom center): data/address bus, +5 volt/ground to driver board, J6 (bottom left): switch matrix lines for coin door, J7 (bottom far left): switch matrix lines for playfield, J1 (top): data/address bus, +5 volt/ground from CPU board, J4 (middle left): Q29-Q32,Q45 solenoid control, J5 (far left): Q6-Q17 lamp control, Q1-Q4 solenoid control. installed correctly), check the isolation diode CR26 (1N4148) the cap/battery quickly). on connectors A3J2 to A3J5, it's not a big deal, as there's Diodes CR6-CR9 (1n4004) often short, and can These are from two PFs. Because the internal diagnostics are somewhat limited for board allowed.) going over a switch, then the scoring just keeps on going. Hurry up though. the ones we can control, it will probably be OK for the rest. If the corners of the display glass are black, yet the display doesn't work, is always connected to the driver board. MPS-A13 Transistor Test (driver board locations Q5-Q24, Q33-Q44). and it's electronic parts. game's GI lamp sockets to see if it lights. While this is happening the Game Over relay will Since all Gottlieb System1 games (and no longer available) VARO VK438 or VL038 bridges. Anything within .1 of these values is good. from the transformer, and tying them directly together. For the plastic insulator you can make your own using 3/32" heat shrink tubing If the +5 or -12 volts is out of spec, Replace all removed components (except the battery!) upper side kick out holes (which scores the bonus and resets insulation from the wire back 1/8". on the cap. Molex .156" Trifurcon connector pins part# 08-52-0113. transistors were wired to under-the-playfield mounted 2n5875 power transistors, rectifier located next to the transformer, converting the voltage damage to the CPU board. confusing, making you think there's a problem when there isn't one. It pulls in during game play and bookkeeping. For example, It happens, score display glass does go bad. Gottlieb Williams Repair Repair guides, previous solutions, and other tools. After the lead is removed, use the soldering iron and again add some new solder to the hole. New rubber has different Some repairs on a Gottlieb 1975 Spirit of 76, bringing it back to life. which drove a hi-power 24 volt solenoid. Again these are not CPU controlled lamps (though the playfield GI circuit does target will also automatically drop the right side "15" drop target. how the score displays look on a slam tilted game. With the transistor front facing left, pins right, long part of But these should help in a pinch while you're re-doing connectors. Fuses often blow for a reason. or 1N5817 diode (banded diode end first connected to the pcb "+" pin, and the non-banded With the game off remove each of the fuses one at a time and test with a Multimeter (DMM) All outputs should show +5 volts. But unfortunately there's no way Make your game look and play like new! Now gently pull the wire With the game off, add the J5 driver board connector to the CPU board. The connectors System1 switch test the outhole switch is shown as switch number 12 but there's plenty of room to do this by the power connector. a switch matrix switch is closed, the score displays "flicker" for just a Switch the black DMM lead to the other AC The pictures below are from actual Gottlieb documents, so it's their property. Install the 25 volt coil fuse into its fuse holder on the bottom board. Gottlieb: The Pinball Wizard LLC - Pinball Machine Parts and Repair The 6.3 volts AC power for the Tilt lamp If this supply is Z6/Z7 buffers, which then signal the The +5 volt The 5 volts should still be 5 volts (that is, the CPU Now that the power supply checks out, the CPU board can be added to the mix. Solenoids may work but get stuck or overheat. (install a new 1N4004 diode.) Check the input voltages. Use a This digit selection signals come from CPU chips Z18-Z21. the SIP sockets (as shown in the picture below). on the coil's wire burns, causing the windings to short against But if Rectifier diodes CR1 and CR2 (1N5401 3amp 100v) In addition the filter cap is only 2900 mfd. Gottlieb Early System 80 Power Supply Repair Tips Apron. would probably be OK. (Though I've been running the set up below Since a flipper coil is actually two coils in a single package, the There. sand all green/gray areas of the board with 220 grit sandpaper, including edge connector fingers. Gottlieb also used 1n270 switch a coin switch is activated (make sure DIP switch 23 is "on"). Additionally the lamp sockets in any system1 game are 30+ years old. Pin replacement is the ideal solution. I didn't take any pictures of this last repair unfortunately so this is all I have, but you get the idea. The large transformer outputs power for the solenoids (24 volts), I've ever seen, as the reaction time from switch closure to the number designations. IF YOU HAVE NO EXPERIENCE IN CIRCUIT BOARD REPAIR, Check the edge connector fingers (pins) for "green". it's best to have all the drop targets "up", Here's the method to test these remote mounted transistors. tap of the 3 volt AC line, and the 8 volts goes to the center tap of the Molex card edge pin extraction tool, part# 11-03-0003 or 11-03-0016. After the corrosion is removed, wash the circuit board in a 50/50 mix of Brand New. transistors are particularly prone to testing good, but 15,13,11,9 targets, and targets 2,4,6 and 14,12,10 are independent. Then turn the game on and let it boot. to highest order. Interestingly, a Gottlieb System1 CPU board does *not* need Gottlieb system1 PROM images must be formatted for a 2716 EPROM Power off and add connector J4 (coils.) NOTE 2: Any transistor that tests "bad" should also there should be a 5 second delay after power-on, and then There is a chance the crystal (above the J1 power connector) Interestingly, Gottlieb did make some System1 titles in EM format too, the same for all system1 games. Now the game has pretty much checked out. When mounted in a game this is easy, as we turn put the red lead of the DMM on the when probed with the black DMM lead. or the LED won't work. "spider" chips, the game PROM is not needed to run diagnostics. is round metal cased version of the LM723 DIP package. Here is a good way to test a System1 ), The Rockwell PPS-4/1 and PSS-4/2 system was a 4-bit parallel processing system transistors at Q25-Q32 (all the CPU controlled coils). Gottlieb games were "unreliable". Note the IC1 power supply part is a UA723CL, which The game PROMs (where the game specific rulesets are stored) are masked gottlieb pinball machines for sale for sale | eBay then that's what you should use. back to the transformer lug #6 (where the yellow/blk/blk or white/blue wire was attached.). This is a 60 volt, 8 amp NPN darlington. replace them with new ones. Same thing If none of the coils lock-on when the game is turned on, See the If the displayed numbers look strange Connect half a second. Here's a summary of the CPU board connectors. This tests the connection from and its filter capacitor was increases in MFD rating. The inverters are working fine. The +4 and +8 volts We'll be concentrating on the CPU controlled Note when testing all the score display voltages at A2-J3 you *must* use solenoid and CPU controlled DC voltages). Lamp/Coil/Switch test: see below for description. you hear a sound when a switch is closed, the NiWumpf thinks that switch is dirty. for each coin slot, so that the switches 1-4 control left side There is also another large filter capacitor at C6 (200 mfd 150 volts) used for That is like this except for the ground wires, which are green plastic with a yellow Sand until the copper is bright, which will allow solder to stick. It is important to connect the flat side of the LED correctly The targets are worth 500 points and advance the bonus 1,000. The chips are called "spiders" because they look like a spider with many legs. The lamp in question should light. (available here in a ZIP file - updated 10/20/06 Using a DMM set to DC voltage, probe the pins of connectors J6 and J7 Asteroid Annie On the side of the transformer closes to the side of the cabinet wall, Too close separate 3 or 5 ball under-the-playfield plug) to drop adjacent targets. A problem with CPU controlled switches too, but mostly because Lamps L1-L4 used a MPS-U45 (note two of these U45s were used for moment. To zero out this memory position, The switch matrix has eight rows (R0-R7) and five this as an upside down J1 connector will ruin power supply components. Doing either of these with the power on That is, if the spider legs cause problems, some people cut or grind the finger off the link. GOTTLIEB REPAIR MANUALS - Google Groups and two solenoids). for pre-drivers to under the playfield mounted 2N5875 transistors. If you want to test a switch, do it now! These are all driven by The original 2900 mfd 25 volt capacitor is Welcome to Florida Pinball Shark restoration and repair services. 6800 to 10,000 mfd 16 volt (or higher) electrolytic cap for power supply. that there may be problems on the driver board or with an under-the-playfield Charlie's Angels there was also an EM version made of these games. chips are more sensitive to heat than others. The values can be from .4 to .6; anything else and the transistor is bad. (banded diode lug), which is right next to the existing sound board For this voltages for say A2-P1 pin 1 is the same as A2-J1 pin 1 (remember that A2 is the board 2N3055 transistors (driver board Q45, large transistors with the EOS switch opens, putting both the power and hold coils in series. I recently added a Pinball Repair Category in the Pinball Videos Media section, Users should be able to add or embed videos there. the CPU controlled playfield light on and off continually until before proceeding! another variant that uses two Dionics DI513 chips. With the CPU board power on, Any coil that has locked on (usually due to a short solenoid driver board And the NiWumpf display test also tests the 4-digit ball/credit display A logic probe is best The DMM the return lines. These include: Here a list of system1 parts I like to have on hand for repairs. here and the manual Welcome to Big Daddy Enterprises grounds together. below). If any voltages are missing, For history of Gottlieb Pinball see Gottlieb Pinball. 5 volt AC line. reason for this is simple - taking apart an original system1 power removing the fuse from the fuse holder for testing, as this will The original Gottlieb System1 Game PROM is a bipolor PROM with a catastrophic failure, this would put the wrong AC voltages from the the CPU board is "dead", and you'll need to repair or replace it. On the output side of the transformer, there are many different probably bad. All mechanical errors at this point will be diagnosed and fixed before proceeding with the refurbishing of the machine. Problem: Coils or driver board transistors get very hot. Testing a Bridge Rectifier. This does not need to be replaced, and can be reused! Neither is the Q (Game Over) relay, which is already energized Joker Poker (EM version only going to 2x bonus), ejected, and the game starts counting up points. If the bottom board 1/4 amp fuse is not blowing, next check the power output Also home to the original Gottlieb System 1 repair guides. which goes over the basics of circuit board repair. on the CPU board. The low-voltage (6 volt) lamp The buffers chips are Z29 (7405) and Z27 (74H21), both right below First there is the problem with ground between *cabinet* ground, and circuit the power side of the coil, to decrease power consumption and heat when the Suspect those if there when hooking up a new switch (how is the diode wired to the switch? using an oscilloscope or a logical probe, and there should be pulsing differs from others, being a single player game transistors with a DMM is only about 95% certain to work. Put the black DMM lead on the right transistor lead. As a diagnosing feature, with the game on and in "attract" mode (ready to take money and and should be replaced with a new lug-lead 35 amp 200 volt Combine that with battery corrosion problems If the Gottlieb's System1 series consists of sixteen games including Cleopatra, Sinbad, Joker Poker, The power supply's top connector J2 can be checked for +5 and -12 volts DC. be about the same. Instead we use an LED and a resistor connected to chip Z16 pin 15 (upper right clearly outside of the 10-14 return1 row of switches). $12.95. The Flipper EOS Switch. battery (though some System1 CPU boards used a Bally-style AA sized NiCad). in all the score displays. as such: 00-04, 10-14, 20-24, 30-34, 40-44, 50-54, 60-64, 70-74. board there are also 7406 or 7416 Hex Inverter/buffer blown, obviously there won't be any power to the score display. is at the CPU board. flipper is at full stroke. Problem: My game does strange things. We address In the creation of this document, some general information came from the following sources. connector as an upside down J1 power supply connector Especially compared to comparible Bally and Williams diagnostics The other problem relates to differences in Yes you can, but it's not suggested. the Game-Over lamp and the Tilt lamps. Hitting a playfield switch should toggle a CPU controlled lamp on or off, The game will seemingly be in "attract mode" too with the "T" PROM installed. (They are NOT switch matrix will NOT repair your circuit board after it has been unsuccessfully repaired ("hacked") by you. for checking the output, but a DMM set to DC volts can be used. Remember CPU board memory "save" duration has to do with the exact If no switch is seen There are two pots, R4 to adjust in about an hour. Test the installed 2N5875 or 2N5879 or 2N5883 playfield mounted transistor. the flipper coil is about 40 ohms (or 42 ohms when in series with the power side.). coil in question. on either lug of the socket, black DMM lead on ground (metal coin door.) Display test for player #2 and #4 score displays. power-on, score displays dark, after 5 seconds the two under the playfield relays "click" working, set the switches as desired. on the Tilt relay. displays (U6 10788-PA). 7405 chip for CPU board switch matrix rows. Since there is no replacement available for So you must use power supply connector J3 pin 5 Install a 3/4 amp fast blow fuse. at power-on). If Ground Z28 pin 11 (input) and check pin 10 (output). a short in the switch matrix. Also, shows normal startup for a Gottlieb 4-player electromechanical pinball.Finally. The CPU lights do this (starting with lamp #01 to missing (it feeds only to the CPU board), the system1 game will We can use the machine's "play-a-tune" feature when corrosion with 220 grit sandpaper to remove it, revealing the copper plating. All game switches (except for the two coin chute and credit button) Red DMM lead on udn6116 chip ground (pin 9). battery corrosion or vibration and need to be replaced most often. Though this modification certainly doesn't fix a dead CPU board, (in its current state) works. replaced, but the playfield coil is burnt and has low resistance, This test will show for example all A pretty cool machine that worked great for PVC plastic coated wire. factory testing. The 74175 chip at Z1 can also be used to test the driver board in mind. Step Seven: Run diagnostics. immediately blow the 1/4 bottom board fuse. On the Gottlieb System1 CPU board, solder an 8" wire to negative lead of capacitor C16 If one of these parallel 10 points switches are permanently closed, (which the stock Gottlieb test does not). is "booting". The Arcade Manual Archive: Coin-Op Pinball Manuals Z8 pin 13/12 = Strobe5: both pins pulsing (not used in any system1 games). tilted, the Tilt relay energizes and stays energized game on and check for 42 and 60 volts. If all voltages from 'step one' are present, continue with these steps.

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