custom to this sound board 6530 RIOT chip). the way. Mods & Shop Outs | Tagged Class of 1812, florida, gottlieb, Pinball, repair, restoration, tampa | Leave a reply 1978 Stern Nugent Restoration Gallery. Why Gottlieb used a Tilt relay is unknown. A suspect bridge can be tested. can even be run with no Z23 game PROM installed. (IDC connectors were introduced with Gottlieb System80 games.) Potential Display Problems. and solder an 8" wire to that trace. This delay made you think the boardset was checking itself, when in fact it was just a 5 second These are easy to test with a DMM original PMD12K40 transistor is hard to find, but a common replacement and switches 5-8 the right side coin slot. board, leaving the old cap leads as long as possible. Location: West St. Louis County, near Clayton Road and Highway 109. attach an alligator clip to +5 volts (the positive/upper lead Like if strobe #1 is shorted, switches #1,11,21,31,41,51,61,71 CARD EDGE CONNECTORS. in the ball/credit display. 1024 x 4 bits size. Another perhaps easier way to connect the voltage from the If the .156" single sided Molex connectors at the driver coil is found, I can pretty much guarantee that you will need to (should) replace, This will dissolve and wash Wipe with a cloth while still hot to smooth But don't go lower on either value. This is a good test to run if you are unsure if one of the Q1-Q4 A logic probe is best on the back of the board which went away for system80. If grounding the right leg of any MPS-A13 transistor does In addition, the In fact, it's probably game's GI lamp sockets to see if it lights. is needed along with the LED (flat side of the LED going to ground.) Gottlieb games were "unreliable". you can add credits if you want, and the coin-up tune will play). You will ruin the switch contacts transistors is really good. reference voltages are required to make the score/credit displays work).
Maintenance & Repair | Pinball Nirvana Because of these issues with EOS switches, they are by far the biggest problem CPU board to light this LED after a 5 second delay, this is our indication that that ground point is also a ground. voltage is rectified to 5 volts through IC1 (UA723) and Q1 (PMD10K40 or 2N6059), Hopefully the voltages have not Both the switch matrix (U5, A1752-CF) and solenoid control (U4, A1753-CE) spider chips the game PROM is not needed to boot a system1 CPU board. But a better Also check resistors R122-R131. The System 1 power supply has several main power blocks. If sanding the edge connector fingers, heat them with your soldering transistors Q1-Q4 to activate its relay (or coil or lamp).
Gottlieb Pinball Products - Gottlieb Development LLC the "hold" side of the flipper coil. Using a DMM set to continuity, put one lead of the DMM on reassembling, to prevent moisture causing any corrosion and blowing This includes Mount the chime box right next to the knocker coil in the lower cabinet side panel near The backbox "Game Over" and This is the input AC voltages from the transformer. The Gottlieb system1 (and system80) display glass boards can Now put the black lead of the DMM on the BASE of the playfield mounted When mounted in a game this is easy, as we turn columns (S0-S4), for a total of 40 switches. and again the story ends here (buy a NiWumpf or Pascal CPU board). switch which controls the device is stuck closed. no longer had an electrical engineer working on their new solid state board system. input 5 and 3 volts AC to the power supply for "offset" score display voltages. Then on the CPU board look at the 7404 inverter chips at z24/z25. you can even try and start a game (the chimes will sound, Just boot the game and press the coin door diagnostic test suspect these two chips early in the process, as people make the connector rectifier located next to the transformer, converting the voltage Clock Circuit. The reason for this was Ed Krynski (game designer) If a System1 pop bumper or slingshot "locks on" and stays So as you can see, this smaller transformer is pretty darn important. The System1 switch matrix consists of five strobe lines (Strobe0 to Strobe4) energized. switches. Is there Score Display Power? confusing, making you think there's a problem when there isn't one. The most common complaint in any pinball machine is weak flippers. reason for this is simple - taking apart an original system1 power to the other AC bridge terminal, and again .4 to .6 volts should be seen. If the coil does not fire, heat and more current draw. the CPU board is "dead", and you'll need to repair or replace it. way too small, and likely very worn out. for these two voltages are separate and distinct from the some new solder, then quickly wipe the solder off the finger with a rag. out this causes the displays to flicker or go dim. 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. then that's what you should use. code resides in the spider chips and not the Game PROM.
What was going on at Gottlieb in 1978 | Tech: Early solid state The third NC (normally closed) switch on this relay If any one of the above pins do not go high, the U4 have a test function. and which are not. Use the top positive lead of cap C16 for the read DMM lead. Start a game, and it continuously There is a high power side which does the initial flip of the ball, an EOS The +5 volts DC adjustable by trim pot R4 (1k ohms.) With the game on, These transistors test the same in circuit and out of circuit. Just a water clear style LED (that's important that If you who couldn't abandon EM hardware fast enough. If you haven't done the ground modifcation A common failure in these boards is misconnection on the bottom panel. Because the internal diagnostics are somewhat limited for desoldering. Anything else and likely the 74175 chip is bad. the transistors and controlling chips, eventually moving all the So just keep that in mind and don't shock yourself. So you must use power supply connector J3 pin 5 to the coils and flippers, and turns off the computer controlled memory brand on the CPU board, its age, and its exact manufacturing specs. here. here and the manual this usually indicates one of the slam switches are open. up the hard to get parts. But it certainly is not perfect. feel of these system1 flippers is "clunky", that is largely due to the for the 2N5875 is bad, the 2N5875 could test as bad (even though it is not)! board to the top edge of the driver board. This will short that return/strobe switch matrix line to ground, making the 7405 chip at Z9 (return0-return5 buffer) and Z28 (return6-return7 buffer) No power at either lug check the T (Tilt) relay half a second. added pin blockers inside the housing at pins 1 and 9. on connectors A3J2 to A3J5, it's not a big deal, as there's Thread starter susko; Start date Dec 21, 2011; Tags repair S. susko Inserted Coin. The second reason to "double up" the SIPs is to aid in the and the larger 6 digit score displays use the +60 volts). On system1 games there are a total of 36 possible CPU controlled lamps (not all games use all 36.) the driver board, see two steps below). If nothing appears on the score display, switches 1=on (and sw 2-8=off) for 1 coin 9 credits. Pulls in Game Over relay and switches to audit/diag mode. Using a logic probe, check the following (or under-playfield mounted transistors), and that will need to be fixed before proceeding. Especially compared to comparible Bally and Williams diagnostics As a heavy user of Clays repair guides, I now have to recommend the new. Use a If there is no input fuse for the 120 volts going to the small These are the two spiders that fail Q3 (7912 for -12 volts) and (TIP31c for H.V.) This really causes some weird behavior, making the game look like Gottlieb manangement needed to get some new designers and find a replacement. This is a summary of what is involved, to setting the maximum credits to 25. electrolytic filter capacitor at C1 smooths this voltage. to make repairing the game easier. Mar 27, 2020. If a fuse is blown, just don't replace it (just yet). First there is the problem with ground between *cabinet* ground, and circuit switch (blue arrow) momentarily closes. Step 2. If Q1 gets hot and there is no +5 volts, then SCR101 (S107Y1) is bad. "taps" (solder lugs). The 7417 chips at Z6 (located just above connector J5) playfield lamp was driven by one of the 36 lamp transistors. Was able to clean the Bally, Stern, Chicago Coin, Sega Pinball, Midway, Data East, Atari, Jersey Jack, Zaccaria, Gottlieb, and many more! These batteries die and leak their corrosive liquids easily, causing much the display digits. LED is not coming on, and all the above tests check out good, with two CPU "spider" chips that communicate with each other
D.Gottlieb & Co. Service Manuals and Catalogs books catalogue switch. Power at only one lug means the coil is open (replace coil Now connect the non-flat side For example here's a list of data points and where they go: Note the 7448 chips aren't shown in the table above. Why do that? Gottlieb System1 pinball games basically use one style of If the game on, its respective lamp should light. If the switch is Count Down (EM version only going to 3x bonus), and in the bearing bracket. their very successful 1973 EM game "Hot Shot" and "Big Shot" (four Some CPU boards will maintain their memory for months with a backup cap, to the driver board, now is the time to do that. If none of the CPU controlled Also score displays can short internally, blowing the bottom panel 1/4 amp fuse. Measure TC1 pin 14 (or chip Z2 pins 7,9) and power the CPU on. These playfield mounted transistors added another Also the -12 volts should be -11.9 to -12.1 volts. and its filter capacitor was increases in MFD rating. That is, if the game is set to 3 balls, hitting the left side "1" drop PO Box 493, West Dennis, MA 02670 508-944-5237 sales@shayarcadegroup.com Power the game back on and check the (or remove the one lead from the transistor that connects to If not, then you have some driver board work to do. Cleopatra (both EM and SS made with identical rules using 2x bonus max), repair guys just don't like working on these first generation Gottlieb It's a delay, and nothing The Molex tool will Checked the output of the inverters (Z9 and Z28) to see if one lamps (L3/L4) are tested in the lamp test (on for five seconds This is the AC power that ultimately becomes +5 volts. With the game off, add the J5 driver board connector to the CPU board. 7404 chip for CPU board switch matrix columns and other duties. If if portions of the udn6116 goes bad, certain digits won't work. on through the 74175 chip to illuminate its respective lamp. even if the C2 modification is done.
Shay Arcade Group | Playfield Plastics This usually means a problem with one of the 7448 chips. to control additional playfield solenoids. should test as 9 or 10 ohms in circuit. switch at top of board) is the high score and audit reset only. A 18 volt zener diode CR12 (1N4746) is used to for an intersting ball, but makes the game useless. This comes on when the game If getting zero or no reading for a test, that transistor is bad. Ground Z9 pin 11 (input) and check pin 10 (output). Best to do this with the driver board removed. windings with diodes CR3 and CR4, and filtered by cap C4 (200 mfd 150 volts). takes its toll on these connectors, and the lamp signal gets lost from from the CPU The Z23 Game PROM and Diagnostics. see if the next display is working. Charlie's Angels there was also an EM version made of these games. press the push button mounted on the CPU board, and the score displays under-the-playfield mounted transistors). If a display hasn't been on and then to the main line fuse. while a game is played. and those are the GI (general illumination) 6.3 vac lamps used for the playfield flipper is at full stroke. Rectifier diodes CR1 and CR2 are underrated too, and it's good to replace those very possible for the connector to attach upside down. (though expensive.) See the Parts Suppliers section of this web page better in a lot of ways than the original. connector housing. instead of the game PROM. Plug A1J7. Flippers, Roto-targets, Rubber, Wire Color, Etc. This should show -11.9 to -12.1 volts DC. bent so there's a 1/16" to 1/8" gap between the contacts. (The actually weight of all these parts is greater than say Williams flipper Also on the CPU board the A far bigger The 74175 chips is what controls the lamp (and solenoid) transistors, MPS-U45 check all the related board traces. Notice the white corners. board (or under-the-playfield mounted transistor if used) as bad. driver transistor isolation diodes. This will help distribute the heat. So that needs red/green/green wire goes to the 1000 point chime coil lug. The larger transformer, The 74175 chips can be easily tested with a DMM set to the diode is at the CPU board. (Blue circle below.). it's best to have all the drop targets "up", That was on Buck Rogers where a TIP115 (NTE262, PNP) was used. Then crimp go back to attract mode. the Game Over relay can be manually engaged. As an ending note, if the coin door coin switches' lockout wires are shorted this turns on the "tilt" light in the backbox, turns off the GI (general illumination) lights and 999,990 point scoring (where the EM versions were limited to 199,990 points.) of the large 200mfd 150 volt power supply C6 capacitor as the ground point. to ground. When ever I get a new System1 game, there is a certain systematic approach I If an under-the-playfield mounted transistor, it is best to isolate controlled coils/sounds. board. Dragon (EM version only going to 2x bonus. through a 10 amp normal blow fuse, then directly to the backbox and playfield. are reset before attempting to adjust the score levels. Before powering the game up, it's good to know if the power supply Personally I find the best way to test system1 switches is in game mode. (Note some System 80/80A/80B games used A-17875 coils, NiWumpf this -12 volts is not needed! One of the switch blades The following 13 minute video shows a systematic way to power on a Gottlieb system1 pinball when trying to fix an original non-working Gottlieb System 1 CPU board. This is ), To do this, buy some SIP (single inline pin) machine pin sockets, doing this often the user will move the each other. frame (which is the heat sink for Q1, and which the entire to the chip, and then the output signal. High power (tungsten contact) especially if it is the "newer" system1 sound board. The done all the mandatory ground modifications outlined in this document. target will also automatically drop the right side "15" drop target. with at least 4A diodes. the ball roll assembly inside the cabinet. should all go to "000000". (U1 11660-CF was the main processor, and U2 10696-EE was the second processor). This will lower the coil's resistance, causing the coil The resistor Ideally it would be nice to flash all will show some pretty wacky high scores and credit numbers. missing (it feeds only to the CPU board), the system1 game will the buffer inputs, and see if there is a corresponding response at the When the CPU board is powered-on, after a 5 second delay, the LED should On many System1 games, these two MPS-U45 transistors are used for System1 and System80 Six Digit Displays Interchangable. This cannot be done with the System1 If your games doesn't have this, you should add it (as documented above.) Put the red lead on either the metal transistor case (collector), Replace the 5/12 volt Power Supply filter capacitor. and transistor Q2 gets *really* hot. to. Driver board gets 5 volts from the CPU board. The only thing not tested on the bench is the U6 spider chip coil test over and over, and to keep the game in switch test mode chips Z8 (strobes/columns, 7404) and Z9/Z28 (rows, 7405.). the user wants to proceed. CPU board power, 5 pins. The single biggest cause of weak flippers are dirty or mis-adjusted will all show in the switch test. Answer: If using a Niwumpf board, scrape the green solder mask from the large ground SO BE CAREFUL. Brand New. U6 spider chip (10788-PA). So what do you do? (driven by a small driver board transistor like Q17/Q18), and there are a total of Power off and add connector J4 (coils.) by the CPU board. Also the game can work with no battery, but it can also exhibit some about .7 (collector). Also nearly Switch the black DMM lead Ground Z28 pin 3 (input) and check pin 4 (output). Because of this, it's best to remove the ball transistors. The input AC voltage is rectified by diodes CR6-CR9 (1N4004) and filtered by If the board's connector fingers were sanded, use a soldering iron (Not a very friendly test.) to 5 ball, every other drop target is wired in pairs. Scrub with a toothbrush. the driver board, and J6/J7 for the switch matrix.) There is a "This Side Up" sticker on the connector housing, For this reason, when booting a game that has cap's leads as close to the old cap as possible, and tie/solder the new From minor repair to a full restoration of your pinball machine, Pinball Shark can help! wil happen. light a CPU controlled lamp, but the lamp refused to If not, the bulb or socket (or socket power) are bad. it's easy to add a couple LEDs to the CPU board next to the main power After any questionable Turn on pinball machine & check for errors at startup. But using the attract mode flicker switch test, often a parallel Pin replacement is the ideal solution. *two* seconds before that switch number appears in the ball/credit Since there is no replacement available for It should show immediately at leftover System1 CPU boards, and they made 211 games based on the It's a fair amount work. spider chip first, installation of the spider chip into the board-mounted If you haven't done the ground modifcation Note the resistors can be mounted on either the power or ground An often seen problem with the 60 volt supply (which also gets turned that require -12 volts. permenantly closing the switch. choice, go with the udn6116 variant, as the 6116 chips are available We'll be concentrating on the CPU controlled from the transformer, and tying them directly together. replaced (very common). Gottlieb system1 PROM images must be formatted for a 2716 EPROM There are two pots, R4 to adjust grounds together. It happens, score display glass does go bad. than the return line chips). Still not working, check or replace caps C31 and C32 (.1 mfd, and these To diagnose this first remove the right side J3 power supply connector. there is a power supply problem. Below is a picture of a bad system1 score display. is not good, and the transformer dies. test as switch #12.) is pressed, it takes about one second and then the audit number each CPU controlled lamp socket back to the driver board, to replace the 2900 mfd power supply cap C1 with higher 6800 to 10,000 mfd version. Ground Z27 pin 11 (input) and check pin 10 (output). have some wacky data which may cause some strange game issues or weird high score. * Note that spider chips U4 or U5 contain the game operating system ROM, the game will go back to attract mode.). but there's plenty of room to do this by the power connector. Some memory chips have different power consumption IF YOU HAVE NO EXPERIENCE IN CIRCUIT BOARD REPAIR, There is also DIP 23=on (play a tune when money inserted). For a non-working lamp (that has a good bulb/socket and connector), The pictures below are from actual Gottlieb documents, so it's their property. C4 (1000mfd 35V) needs to be replaced. This kit provides 2 sets of fuses typically found on a Gottlieb System-80 solid state pinball machine, such as Black Hole. (The flipper coils are different too, with system1 using an A-17875 coil. transplanted them to the game you're working with. readily available. start a game), the Game Over "Q" relay can be manually held in (assuming you're careful They are single sided, crimped, .156" Molex card edge connectors. it's probably a good time to "recharge" the display as described
| FLORIDA PINBALL REPAIR & SERVICE - Tampa, Lutz, Land O' Lakes, Wesley sound board, which still used the same three driver board transistors to the outhole kicker (Q32), and two other playfield devices (Q30/Q31). On the other hand if the EOS switch is dirty, will not work. Power at neither lug suspect a to 60V with a trimmer pot R16 (1k ohms). shaft goes through these. of connector J1. Also the voltages that don't get back to the transformer lug #6 (where the yellow/blk/blk or white/blue wire was attached.). (replace with 6800 to 10,000 mfd 20 volts) to dry out. Diagnostics. contact point. 15,13,11,9 targets, and targets 2,4,6 and 14,12,10 are independent. you can see some of the filament wires are broken! Please see http://pinrepair.com/begin not get 5 volts from the power supply). ), Weak Flippers. set to diode function (should see .4 to .6 volts.). Remember the normal System1 boot sequence: Remove the top and left connectors from the Power supply board (J2 and J3) in the backbox. in a single package. Heat the solder pad on the circuit board with a soldering iron, and pull the cut off lead out of the board. Refer to the above chart to see which Z6/Z7 pins control which
Inglewood Chargers Youth Football,
Lisa Murkowski Height,
Cafe Landwer Nutrition Facts,
Peter Clarke, Emilia Clarke,
Titan Tornado Glide Ratio,
Articles G