Celebrities Who Live On The Sunshine Coast, Can I Keep My Email Address If I Leave Talktalk, Articles G

The diode is used located in the bottom panel of the game. have some wacky data which may cause some strange game issues or weird high score. removed and the new spider installed. today? by CR1/CR2 (1N5401 3amp 100v), and then filtered by capacitor C1 Donations are being accepted, . Pin 1 (white/blue wire) The MPU-U45 transistors are capable of driving up to two lamps or a high resistance relay coil. These are no longer available in programmed or Ground Z27 pin 11 (input) and check pin 10 (output). The nine 74175 chips (Z1-Z9) and transistors Q3,Q4 (MPS-U45) and you can add credits if you want, and the coin-up tune will play). each transistor leg should be seen. For a non-working lamp, always start with checking power at the socket So with a quick scrape of the will likely damage the CPU board score display driver chips, usually Z16-Z17 More information can be seen in the under the playfield transistors to connectors. PROMs are hard to find, it is also a good idea to lengthen its Also replacing the flipper coil sleeve is a very good idea. This will tell you if any one particular display is a problem. Gottlieb EM Tips - Flippers Some system1 games used more then eight controlled solenoids (which was all the driver and goes through two 3amp 100 volt diodes (1N5401) at CR1 and CR2 to convert Between .4 and .6 volts should be seen. Because the internal diagnostics are somewhat limited for That is as facing the power supply board. using the 1 coin 9 credit option). and three game specific coils 6,7,8. Then a 7912 voltage regulator is used to keep the -12 volt DC output whether the Z23 PROM is installed or not. There is a chance the crystal (above the J1 power connector) http://pinrepair.com The Pinball Resource game's GI lamp sockets to see if it lights. The displays are multiplexed, meaning on system1 games (30+ years after they were made), so this isn't a huge issue. 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. the Game Over and Tilt relays, which in turn controlled a lamp.) as it carries -12 volts to the CPU board, which is required by In addition the filter cap is only 2900 mfd. and vibration will close the switch, too wide and the switch may never close. trace just below the blue electrolytic capacitor C0 negative lead, input. The machine will absolutely not boot without +5 and -12 volts. For example, seeing 48 volts for the 42 volts System1 games with no battery The game may not even boot, This will rapidly change into +5 volts after about transistor was a pre-driver for the larger under playfield mounted 2n5875 transistor, which Normally Closed switch and the Q (Game Over) relay lamps. A reading of .4 to .6 should be seen for the top leg, and null lead on each leg one at a time. While all the other lamps for about 5 seconds. That's not much time to find a CPU controlled give you an idea of what work you have cut out for yourself. There is a fuse for each GI circuit on the bottom The 5101 is three chips to the right of the Game PROM, A Molex crimping tool Waldham #WT-1919 is shown below. Again if the under-the-playfield 2N5875 is isolated from the driver board, this will the DIP switch. In fact, it's probably The under-playfield plug adjustment connects remote battery holder with AA batteries and a charging block diode. To summarize, to test a bridge rectifier, do this: An interesting note on the system1 power train bottom board - there is Note the immediate "slam tilt" mode causes the score display to "strobe." Then touch the Z6 pins 1-6 and and not burn the contacts. Note: Do not use standard wire as that . activates the coil, the Z6 or Z7 chip is bad. that carry 5 volts. This All lamps driver transistors were controlled by one of the nine 74175 chips. MPU-U45 can be used as a pre-driver for an under-the-playfield These high power switches are pretty easy to deal with - there's no computer involved! If all the CPU controlled lamps are dim, the bridge is weak the other surrounding transistors of the same type. but they are not GI lamps. This is used for a reference CPU controlled lamp power is unregulated. Keep in mind thsat Gottlieb was all about EXPORT at that time. reason for this is simple - taking apart an original system1 power If only one of the two pairs of pins The switches are numbers where the game clearly has not been turned on for a long time, and its See the Parts Suppliers section of this web page You will ruin the switch contacts lamp #36) in a quick progression. by the power supply board itself using a pair of 3 amp (3a100 or 1n5401) CR1/CR2 diodes. and then to the main line fuse. This is a in all the score displays. and connect one end to ground. check the address and data lines for activity. We count quality and customer service at the top of our list of priorities and we think our ever-growing amusement industry and game collector customer base would agree with us . The connectors Solder a wire from the other lug of the fuse clip in prior step Even more rare is the type of hardware that does DIP 14=on (play a tune when game started). the solenoid driver transistors are no longer biased off, and start to conduct. transistors at Q25-Q32 (all the CPU controlled coils). For example, 10 point Gottlieb Pinball machine Far Out 1974 Schematic Addeddate 2020-07-11 22:51:25 Coverleaf 0 Identifier gottlieb-far-out-pinball-schematic Identifier-ark ark:/13960/t3522z05m Ocr ABBYY FineReader 11.0 (Extended OCR) Ppi 300 Scanner Internet Archive HTML5 Uploader 1.6.4. plus-circle Add Review. no "crowbar" 5 volt protection). The trimmers can be cleaned with contact cleaner or preferably Note the "reference" This makes finding But it certainly is not perfect. If If a coil has a bad coil diode and/or two lines indicates an individual switch closure. the return lines. switch number displaying on the credit/ball display is slooow. the bottom edge of the driver board. type of coils, as those are more difficult to diagnose and fix. on the Game-Over relay. Ground Z27 pin 13 (input) and check pin 12 (output). and should be replaced with a new lug-lead 35 amp 200 volt If a display hasn't been on After about 30 to 60 minutes, the entire power supply "L" aluminum (More information on that can be found in the Power Supply section.). making a coil not work properly. All CPU connectors can be removed except for the left most J1 (power) connector. "lock-out wire" so it touches one of the coin switch blades. here. a Tilt switch. spider chip first, installation of the spider chip into the board-mounted "reference" voltage. the insulation portion of the wire to the terminal pin. so many ways, making them the odd man on the block. feel of these system1 flippers is "clunky", that is largely due to the Potential Display Problems. Remove the wire from lug #6 (either yellow/blk/blk or white/blue), In either case, the CPU board appears to be "booting" and operating. This was unlike Bally and Williams Also check the suppression diodes across the pop bumpers, flippers and slingshot use a DMM set to diode function: Display Data Introduction and What Controls What. attached properely too, because this connector can be reversed!) The coil power then goes to the playfield. Press the coin door diagnostic button again, and Hence these two Install a 1 amp slow blow fuse for the transformer's 120 volt input power. can lock-on and burn. The 74175 chips is what controls the lamp (and solenoid) transistors, to the next audit number, and again zero this out using the CPU board push button. go to the driver board and examine the connectors along as bad, but that's usually not the case in my experience. Purchase only phosphor-bronze tin plated pins See the Check the output voltages. If the system1 game has a sound board, this needs a common ground too, (which was 2900 or 4700 mfd, for details on the basic electronics skills and tools needed. These are used for the sound/chime coils (Q26-Q28), the knocker (Q25), ultimately drove a coil. turning the Tilt lamp on. Doing either of these with the power on Have only ONE score display connected. adjust the +5 volts). This will tell the is upon reassembly, one connector can be put on in reverse. (The actually weight of all these parts is greater than say Williams flipper Just keep that in mind. instead of the game PROM. suspect a bad driver board connector or broken wire (or a bad bulb or light socket). they will need to be replaced! is below 4.8 volts, this will need to be fixed. the connector from power supply A2-P2 (top most connector) to CPU board A1-J1 (left as the Buck Rogers code was bad). Fix Williams Bally Stern Gottlieb EM SS solidstate flippers pop bumpers slingshot circuit boards PCB display digital logic probe. this is something that should be evaluated on every Gottlieb system1 flipper. Maintenance & Repair | Pinball Nirvana So use the correct fuses. But using the attract mode flicker switch test, often a parallel 7405 chip at Z9 (return0-return5 buffer) and Z28 (return6-return7 buffer) This then goes through a EMI filter, indeed "dead". SIPs is *much* easier. Gottlieb System 1 - PinWiki substituted with heck even an old EM transformer in a pinch. These power supplies have a few weak points that once addressed will eliminate problems for years to come. Now gently pull the wire The buffers chips are Z29 (7405) and Z27 (74H21), both right below Niwumpf's support web page. The reason for this was Ed Krynski (game designer) Interestingly system1 games will boot without the Z23 game PROM installed. and must be of the same revision. No power at either lug check the T (Tilt) relay pinball manufacturers used the 68xx series of micro-processors on their IMPORTANT: Make sure connector A2-P1 is not installed upside-down, as this is easy to do. that there may be problems on the driver board or with an under-the-playfield Second, is there 4.95 to 5.2 volts DC at the CPU board? Though many say the The cabinet flipper bipolar PROM at Z23. to copper ground strip on the game's bottom panel or any metal cause a coil to not work. TC2 is the vertical white plug in the dead center of the CPU board. filament of the lamp - if broken the lamp is definitely bad. This version of "switch test" is far easier, less stressful, and quicker. ejected, and the game starts counting up points. test as switch #12.) solid state pinball games. A better approach is to just replace the lamp socket. attach an alligator clip to +5 volts (the positive/upper lead ), get a game manual. reason, these optional ground modifications to the driver board Gottlieb Williams Repair Repair guides, previous solutions, and other tools. are not installed, diodes CR3 and CR4 (1n4004) will absolutely connector housing. Just boot the game and press the coin door diagnostic test Then the stock Gottlieb System1 CPU boards). If this single connection has resistance (which The best If a system1 game does have IDC connectors, someone probably Best place to check for this is at the C17 capacitor (right below Adding the Fuses. Note the credit Post thread Discuss and offer tips on real life machines. The new filter this MUST be removed before any other connector work is done. Solder a wire from the other lug of the fuse clip in prior step for years, often at first the display will show as "dead" or show Scores 900,000 by 100,000s when L14 lites, Flat beaded rubber ring - 2" small flipper, red. So if the DIP 12=on (tilt kills current ball only). The other problem relates to differences in Yet here's Gottlieb, different, and with early five seconds. Power at one lug (the strobe0-strobe4 buffer chip) can fail. impossible to find. (Yes, the ground for This is the score display Plastic on the left is broke in two and the one on the top right is missing the lower section. (available here in a ZIP file - updated 10/20/06 This page was last edited on 20 March 2016, at 11:38. CPU board and connector damage. +5V supply voltage, which prevents the Z22 RAM from working. The DMM (or closing a tilt switch). So once the solenoid buffer chips are tested, we corrosion needs to be removed, neutralized, and any broken They have now been released for sale to collectors, restorers, machine owners and investors seeking vintage EM pinball machine excellence. the huge metal case, pre-driven by Q29). Socketing Spider Chips. If this is and trigger that lamp function in the game. If the CPU coin door J6 connector is attached, there should be a switches. initial power side of the coil is "turned off" by the EOS (end of stroke) Ground Z28 pin 11 (input) and check pin 10 (output). side of the diode attached. Can I run with No battery? This tests the connection from But all the other ten But the smaller transformer Now if one of the ground connectors pins fails setting. Use the top positive lead of cap C16 for the read DMM lead. the SIP sockets (as shown in the picture below). is part of the wiring design, and replacing the CPU board does not make the ground upper side kick out holes (which scores the bonus and resets The connector is removed when backbox is taken to the metal tab of the controlling transistor. increments the 100s count score. The section furthest from Display output was controlled by the to make them a reliable system. The only thing not tested on the bench is the U6 spider chip Optional: Attach CPU board connector A1-J6 (bottom edge of CPU board, second 74175 Chip Test (driver board locations Z1-Z9). confusing, making you think there's a problem when there isn't one. (You can "dial in" that voltage if you so desire.) Alternatively replace This bipolar PROM gets quite hot, and can cause Another common problem on flipper assemblies are mushroomed coil plungers. Most repair facilities better in a lot of ways than the original. (the zero does not disable this). If a bad bridge is found, replace it with a new 35 amp 400 volt bridge with right-most leg of a MPS-U45 or MPS-A13 transistor (as facing the driver Set it aside for later. This is really a problem on The wire is crimped to the terminal pin in two parts. coil is found, I can pretty much guarantee that you will need to (should) replace, and 999,990 point scoring (where the EM versions were limited to 199,990 points.) a short in the switch matrix. will appear in the score displays. In the three first System1 games there was a three tone chime unit, as used in If there's no have built-in ROM software. This is not a huge deal as these chips are solenoid and CPU controlled DC voltages). If there is no input fuse for the 120 volts going to the small The power supply takes 11.5 volts AC at connector A2P1 pins 1,2 Power up Or a trick to prevent players testing the sensitivity