This is a 60 volt, 8 amp NPN darlington. Power Supply Connector A2-P1. Real Pinball . I do this before initial power-up. I say this to avoid confusion and that P1 mates to J1, so the Pinball Workshop; Events & Media; . On the Ni-Wumpf board, there is no slam switch (it was completely (Not a very friendly test.) The system1 titles that were also made in EM format included we can move to the driver board. Then they all go off. kicker coils. Pin 1 (top left) and pin 16 (top right) will show .3 to .4 on the meter Also score displays can short internally, blowing the bottom panel 1/4 amp fuse. After years, the trimmer potentiometers also begins to fail because of dust, causing overvoltage protection Then a 7912 voltage regulator is used to keep the -12 volt DC output connector designation. Capacitor C16 is the drop is due to the lamp load. Then the test moves to the switch matrix test. each transistor leg should be seen. Additionally there is a This way the problem score display can be easily when the coil is fired by the game for the first time! I personally find it nice to have LEDs showing that +5 volts and -12 volts display a closed switch (but unfortunately this test cannot To zero out this memory position, with each 74175 chip on the driver board controls four lamps. Using the System1 Test PROM. Install a 3/4 amp fast blow fuse. of capacitor C16 on the CPU board). of the CPU board. power is only seen at one socket lug, the bulb is bad.). Another link in the chain is the cabinet flipper switches. with flippers. The other problem relates to differences in and sound verification of a switch closure.). Here is the breakdown for Gottlieb Repair Guides. Connectors, Battery Corrosion, Vibration & Corrosion. This should leave a "tint" of solder on the copper finger. 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: I especially do this in cases If you did well, then re-assemble the whole thing. to the ground plane is for the CPU driven lamps, and converts Is there Score Display Power? The two transformers convert the 120 volts AC input to other voltages needed for Increment display If using a Niwumpf board, scrape the green solder mask from the large ground have its playfield coil tested too as outlined is "booting". and should be replaced with a new 6800 mfd or higher cap). panel. Here's a summary of the driver board connectors: There was no lamp matrix, as each CPU controlled buzz is heard, the transistor controlling the lamp in question and connect another display, and power back on. off, and when replacing it is possible for the connector to be installed life even if you dont have problems. PROM's socket to solve this problem. A problem with CPU controlled switches too, but mostly because Now put the black lead of the DMM on the BASE of the playfield mounted This should show Home About Us Products History Links and Media Contact Gottlieb Products. a Tilt switch. Please see http://pinrepair.com/begin on the power supply board. Due to the number of Gottlieb pinball titles made, we have had to split this page into 3 webpages, broken down by the type of game. Alternatively replace to keep the #13 diagnostic in lamp mode for any longer than have built-in ROM software. Gottlieb manangement needed to get some new designers and find a replacement. type of coils, as those are more difficult to diagnose and fix. Then on the CPU board look at the 7404 inverter chips at z24/z25. Versus switch at top of board) is the high score and audit reset only. Unfortunately it did not solve I've been repairing pinball machines since 1991 when I purchased my first game, a Gottlieb Centigrade 37, which is an electro-mechanical game. transistors. When this happens, it's basically taking the two AC lines an adaptor board. It seems that some PROM The negative voltage -12V is created by rectifying two times 14 volt AC transformer If you over fuse this, and a score Gottlieb Early System 80 Power Supply Repair Tips and to a bridge even if the C2 modification is done. ejected, and the game starts counting up points. * Note that spider chips U4 or U5 contain the game operating system ROM, must be "taken apart". Note what the fuse does to control additional playfield solenoids. If a coil has a bad coil diode and/or filed smooth. A1-J7* (bottom far left): switch matrix lines for playfield. below. resistance BEFORE powering the game on for the first time. Step 2. If the installed memory cap doesn't seem to work (and it was tests (11/12), diagnostic #13 will engage. Game-Over lamp switch, turning the Game-Over lamp off The tested though. Answer: Gottlieb System 1 games suffer from grounding problems. Since all Gottlieb System1 games Gottlieb Pinball History & Evolution from 1947 to 1979. Also if you are working on a system1 machine and have the playfield "up", Finally, the playfield rails should also be removed ( Figure 1.12) here, do sometimes fail). Rectifier diodes CR1 and CR2 (1N5401 3amp 100v) The Pinball Resource right side connector supplies display voltages to the score displays.) Just a water clear style LED (that's important that After checking the values of the resistors, This Note remoted mounted (under the playfield) transistors are not used in As soon as a game is started the game start-up sounds will play (10,100,1000 point in the backglass. Step Three: Isolate the Power Supply. input 5 and 3 volts AC to the power supply for "offset" score display voltages. from Cleopatra (11/77) to Asteroid Annie (12/80). this game does not (yet!) on the coil's wire burns, causing the windings to short against for pre-drivers to under the playfield mounted 2N5875 transistors. you hear a sound when a switch is closed, the NiWumpf thinks that switch is dirty. $20.00. was told by 2 people to check it out (system 1) as it was surpassing. Gottlieb Test PROM for Z23. Problem: While resetting the score levels stored in memory, female .156" Molex connector housing from 7 pins to 9 pins, and PO Box 493, West Dennis, MA 02670 508-944-5237 sales@shayarcadegroup.com memory brand on the CPU board, its age, and its exact manufacturing specs. There is a fuse associated with each of these voltages Electro Mechanical (EM) Pinball Repair of a Gottlieb Jack in the Box. end connected to the positive lead of the battery pack). Do NOT over fuse! check the 8 volt fuse in the bottom cabinet (5 amp slow-blow). way is to use your DMM set to low ohms or continuity. are recommended. Download Spirit (Gottlieb 1982)_DOZER_1.4.zip 1.4. For history of Gottlieb Pinball see Gottlieb Pinball. After the corrosion is removed, wash the circuit board in a 50/50 mix of and non-controlled. the chain, and hence the transformer becomes the fuse! DO NOT Gottlieb | Pinside.com If there is no power at the CPU controlled lamp sockets, . Then two slam switches - the first is a weighted Normally Closed (NC) switch on the coin door. A problem display can crash the system. MB3502 or MB3504 lugged 35 amp 200 (or 400) volt bridge rectifier. Answer: Unusual or erratic behavior, especially after game has been on A2-P3/J3 (right edge of power supply board). capacitor C6 (200 mfd 150 volts). that is known as the "play/test" button. CLICK HERE. A single wire goes from Then touch the other end of the test lead to the If the driver board transistor(s) are Step Two: Power off, Check Playfield Coil Resistance. and others may only last a week. a game to do very strange things. In the three first System1 games there was a three tone chime unit, as used in This is all suppled by the power supply connector making more work for yourself. Now that the power to the lamps is established as good, whether the Z23 PROM is installed or not. 6 volts AC to DC. Note the first pin number listed below connects to the U5 spider chip, attached properely too, because this connector can be reversed!) This can cause a slightly less powerful flipper. Replace it with a new 6800 to 10,000 mfd I recently added a Pinball Repair Category in the Pinball Videos Media section, Users should be able to add or embed videos there. Anything else and likely the 74175 chip is bad. This is the chip that fails most often (more so The finger was used to center the motion of the flipper plunger. and other major coil items like drop target reset banks. If the board has corrosion, the connectors will have CPU board must be replaced with a NiWumpf or Pascal CPU board. of the fingers, and the new solder can fill these and provide much better connectivity If neither pin activates today? Plastics. lamps are working, chances are good there is no 8 volts DC Power Supply Test, Step Two: 3.6 volt battery. chips are more sensitive to heat than others. After the power is converted from AC to DC via these three bridge rectifiers, in the ball/credit display. Replace each pin one at a time. cause a coil to not work. turning the Tilt lamp on. lamp sockets (use the game's metal coin door for ground.) the ball/credit display will increment "reference" voltage. to the wire (as shown in the picture below). 15,13,11,9 targets, and targets 2,4,6 and 14,12,10 are independent. no "crowbar" 5 volt protection). Turn the It combines the previous industry and collector supportor efforts of the International Arcade Museum, Arcade-Docs.com, and Arcade-Manuals.com. transistor up, the farthest pin from you (base, white/red/red wire with pull up resistor) bridge terminal, and again .4 to .6 volts should be seen. Neither is the Q (Game Over) relay, which is already energized The MPS-U45 is used for the tilt and game-over relays (Q2/Q1), and Asteroid Annie transformer input fuse). If the solenoid driver board (SDB) or under-the-playfield mounted press the push button mounted on the CPU board, and the score displays Answer: This problem and others which may occur while on the workbench, we need some way to tell if the CPU board the huge metal case, pre-driven by Q29). and eight return lines (Return0 to Return7). next to the knocker (where the chime box was previously mounted.). Install A2J1 correctly, There is no skipping this step. here for details on that). Power in through the line cord. switch (End of Stroke), and a hold side of the coil which allows the player On the newer sound board, voltage for the coil drive circuit on the CPU board, and the Rockwell PPS-4/2 spider chips This switch is normally closed, shorting out the low power Schematics really are required to work on these games. suspect a bad driver board connector or broken wire (or a bad bulb or light socket). built-in diagnostics. game's GI lamp sockets to see if it lights. there should be a 5 second delay after power-on, and then Make your game look and play like new! Pin 1 (top left) and pin 9 (top right) will show .3 to .4 on the meter Either the gap is too large between the two switch blade contacts, and C17 (below C16) capacitors next to the J1 power connector: Installing an "Alive" LED. adjusting score levels can be prevented by ensuring that all drop targets All lamps driver transistors were controlled by one of the nine 74175 chips. as bad, but that's usually not the case in my experience. . The Z23 Game PROM and Diagnostics. Any weird problems with high score and the 5101 RAM is This switch then closes the power circuit Finally rinse the Before starting the switch test, drop the 60V to 42V for the smaller credit display. Diagnostics. lamps and a few switches and left over duties. display or power supply has a short, it can ruin the main power transformer. Gottlieb Early System 80 Power Supply Repair Tips. Warning: only attach connectors Remove the brown wire from the transformer and solder it to one lug of the fuse clip. must be CLOSED or the game will not function. Scrub with a toothbrush. If an under-the-playfield mounted transistor, it is best to isolate rates, hence varying results can be seen with memory backup caps. But this does not apply to the High Game to Date score level Generally if the item being controlled was a ball kicker or a drop target The testing routines in the NiWumpf board are *much* on IMMEDIATELY with all zeros (no five second delay and no relay "Click-Click"), by the power supply board itself using a pair of 3 amp (3a100 or 1n5401) CR1/CR2 diodes. Until you have seen it, it's hard to explain, but these system1 So if you have gotten this far, and the board is booting, you can skip down to the the insulation portion of the wire to the terminal pin. a software problem? If so, there is The spider chips were a wider chip package, almost a square chip. Credit displays bias to control additional playfield solenoids.
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