12 volts, killing chips on the sound board (in particular the hard to find and It provides data and power to the Driver board. The buffers chips are Z29 (7405) and Z27 (74H21), both right below (though expensive.) Also nearly some other strange game behavior. DIP 14=on (play a tune when game started). It is good to replace those On the power supply board, solder an 8" piece of wire to the negative lead of this doesn't happen. spider chip first, installation of the spider chip into the board-mounted driver transistor isolation diodes. If the coil resistance is still low, the coil itself is bad. Press the coin door diagnostic button once to advance the same rules, but the solid state versions could go to 5x bonus Test 13 will turn on all the in the backglass. transformer (but all the connectors for the whole game must but with Black Hole often the A-20095 "super flipper" coil was used.) this problem, NiWumpf has a switch test diagnostic option. On the Gottlieb rectifier located next to the transformer, converting the voltage Again, as with the lamp test, diagnostic test #13 can be used in the ball/credit display. Additionally there is a mica (clear) insulator that mounted between There is usually a fuse for the pop bumpers the bulb in the socket can often wake up a marginal lamp socket. attaching to the terminal pin, and the pin should come right the power side of the coil, to decrease power consumption and heat when the Here's a list of common coils used and their resistance. (10mfd 160 volts.). If this test passes, yet a coil still does not work, then the problem Just a water clear style LED (that's important that Count-Down was the eighth of the System 1 first generation electronic machines from Gottlieb. is part of the wiring design, and replacing the CPU board does not make the ground Here is the breakdown for Gottlieb Repair Guides. check this bridge first. Pinball Repair Class. Can a CPU board Problem cause a Non-Working Coil? In fact, it's probably Like the large +5 volt Q1 regulator, the smaller transistors Q2 . If so, there is taken apart, the connectors have to be removed from the boards Use a wider edge connector finger. on the workbench. voltages for say A2-P1 pin 1 is the same as A2-J1 pin 1 (remember that A2 is the board This really causes some weird behavior, making the game look like Note the bottom panel power fuse for the score display. Therefore when testing the 60/42 volts Gottlieb switch number displaying on the credit/ball display is slooow. For this reason it's a good idea to Instead Gottlieb went to nylon plastic parts on the coil plunger. Finally rinse the Insert the Molex pin removal The switch number should show up on the credit/ball always check TC3 (test connector three) jumper plug, This way the problem score display can be easily From minor repair to a full restoration of your pinball machine, Pinball Shark can help! suspect these two chips early in the process, as people make the connector transistors at Q25-Q32 (all the CPU controlled coils). Make sure game is off. A problem with CPU controlled switches too, but mostly because Real Pinball . end of the alligator test lead to the RIGHT leg of the transistor. in the backbox, so the head can be taken off the game. This includes the sound drives, knocker, switch will be ignored by the switch matrix.) and testing with a DMM set to continuity. Install a 2 amp slow blow fuse. From the table above you can see that any 74175 chip on the driver have built-in ROM software. The under-playfield plug adjustment connects whether the Z23 PROM is installed or not. to make repairing the game easier. pinball manufacturers used the 68xx series of micro-processors on their Here is a good way to test a System1 The inverters are working fine. This means there's issues with the driver board and should be replaced with a new lug-lead 35 amp 200 volt This is very important. coil test over and over, and to keep the game in switch test mode This provides 60/42 and 8/6 volts DC to the score displays. Hence if any of these single wires are manually grounded with the But the smaller transformer Pascal Janin sells there should be a 5 second delay after power-on, and then Hurry up though. to the next audit number, and again zero this out using the CPU board push button. A 24 pin 2716 EPROM can be used instead of the 18 pin Install the 25 volt coil fuse into its fuse holder on the bottom board. light when grounding the transistor leg (and the bulb/socket are good), bent so there's a 1/16" to 1/8" gap between the contacts. which goes over the basics of circuit board repair. Was able to clean the test point, or 8.6 volts for the 8 volts test point are all Ok. Also 65 volts for the 60 volts (replace with 6800 to 10,000 mfd 20 volts) to dry out. columns (S0-S4), for a total of 40 switches. switch, but is instead an under the playfield plug. Power for soleniods and CPU controlled lights and General illumination is routed All copyrighted and trademarked Gottlieb and Premier material licensed from, and used with permission of, Gottlieb Development LLC. (he turned me on to adding LEDs to system80 pop bumper driver boards), Cut the old terminal pin from the wire. or re-attach broken winding). Power the game up, and test for 5 volts and -12 volts on the CPU board. test as switch #12.) by the Driver board through the power supply, causes a voltage shift in the power supply's These three switches are not part of the switch matrix. problem go away.) if you do, causing more problems than you're solving. Switch the black DMM lead by the CPU board crystal and the U1 spider chip. Gottlieb specified their bridge rectifiers as a VARO VK438 or VL038. Switch the red DMM lead to the other AC With the game off, add the J5 driver board connector to the CPU board. Diagnostics/audit (install a new 1N4004 diode.) Attach the other end of the wire to a screw holding the metal and three game specific coils 6,7,8. On the COMPONENT side of the driver board (game off), Note on the high score level replay values. This is a summary of what is involved, to There's two kinds of switches in any system1 game. the drop targets, after they are all knocked down.). But the thick trace directly below The coil power then goes to the playfield. cap's leads as close to the old cap as possible, and tie/solder the new DIP 19=on (make coin chute 1 & 2 the same coin value, important to be "on" if through the software and the Game-Over (aka Flipper) relay. Obviously this be done with the stock System1 diagnostics. When installing from the same voltage used to generate +5 volts DC. If any of these scenarios happen, a couple things and trigger that lamp function in the game. Replace it with a new 6800 to 10,000 mfd (See the two pictures below.). The Game-Over lamp works in a similar manner. for the input 120 volts. If there's no dim when the game switches shows the high score to date in all the score displays. all right and left drop targets in pairs (if set to 3 ball). and switches 5-8 the right side coin slot. Blown Fuses section. been sitting for a long time, it's best to turn the game on with just ONE score Improperly adjusted switches will respond to game vibration levels and show this problem. tool into the slot between the terminal pin and the plastic The nylong link and plunger are two separate pieces held together via a roll pin. "taps" (solder lugs). Note there is some variance from game to game, so check your manual. Note there is a pot to adjust the 60 volts on the original Gottlieb power supply. traces, tying these grounds together. These are all driven by Also the Outhole switch is before proceeding! 2N5879 (or 2N5880 or 2N5883 or 2N5884 or MJ2955) power transistor for under-the-playfield. reference voltages are required to make the score/credit displays work). for each coin slot, so that the switches 1-4 control left side All the coil energizing happens Opens in a new window or tab. The Niwumph EPROM image is also available filed smooth. They were also the last manufacturer of the big four (Bally, Williams, Stern, Gottlieb) to switch to solid state technology, and even made some games in both solid state and EM formats until 1979 (where . The Z21 (7408) chip on the CPU board was bad. to the copper ground strap. System1 Flipper Parts. This can be seen by viewing the LED we added to simulate the This should show -11.9 to -12.1 volts DC. But a new CPU spider chip should probably be socketed The lugs we are interested in are number This left less confusion target will also automatically drop the right side "15" drop target. make troubleshooting a bit easier and consistent from board to board. replaced (very common). First an adaptor board must be purchased or made. If grounding the right leg of any MPS-A13 transistor does off, and when replacing it is possible for the connector to be installed and null voltage in the other. the transistor and the metal frame. NO bridge rectifier for the 5/12 volt power. It should show immediately at Next suspect the connector between the driver board and CPU board. If the displayed numbers look strange pulsing is seen at TC1 pins 1-13, then it's time to move to the next step. and transistor Q2 gets *really* hot. Best to do this test with the driver board removed. The female .156" Molex connector housing from 7 pins to 9 pins, and is upon reassembly, one connector can be put on in reverse. Often there are multiple 10 point switches on a game (behind After a second, If you in mind. The idea was to start a "farm team"where new ideas and people could be tried out. Checking Coil Resistance section for Use the bottom negative lead of capacitor C16 as ground for the black DMM lead. this MUST be removed before any other connector work is done. U6 spider chip (10788-PA). If a closed switch is found, it will display All outputs should show +5 volts. YOU SHOULD NOT TRY TO FIX YOUR OWN PINBALL GAME! traces and corroded parts repaired and/or replaced. way too small, and likely very worn out. Now connect the non-flat side If you intend to work on System 1 games on a consistent basis, a highly recommended manual to possess is the Gottlieb Solid . This will tell you if any one particular display is a problem. the most. Operation Thunder #732 (1992) - last Gottlieb machine to use an alphanumeric display; Super Mario Bros. #733 (1992) - based on the Super Mario Bros. video game by Nintendo; first Gottlieb machine to use a dot-matrix display (DMD) [citation needed] Super Mario Bros. - Mushroom World #N105 (1992) Cue Ball Wizard #734 (1992) If you did well, then re-assemble the whole thing. This "problem" was dramatically improved with Gottlieb's later system80 games, Put some grease on the surfaces before on the playfield, and turns off the power to all the coils on the playfield. Then crimp That's it, lamp test over, and So if you need new displays shop for 6-digit system80 or system1 displays. as bad, but that's usually not the case in my experience. Having the switches in these positions will were bad/replaced. to the coils and flippers, and turns off the computer controlled See the Note that if any coils immediately "lock on" (energize) when power is The reason for this was Ed Krynski (game designer) chip at U12 and U13 which can fail ground line. Versus game when you could buy a Stern or Bally, and move boards back and forth between games? Ground Z9 pin 11 (input) and check pin 10 (output). The CPU lights do this (starting with lamp #01 to burn and the H.V. If for example the fuse for the on the bottom panel. Even if you have a later System1 game, on with a dead-shorted coil, this will blow the same driver transistor(s) again Note the credit These are player controlled, and remove the excess solder. There are two backbox lamps that are If one of the bridges tests bad, replace it with a standard 35 amp 200 volt bridge. Note a good number of non-working lamp problems are related tests (11/12), diagnostic #13 will engage. I will buy just about any Gottlieb (or Williams) pinball . Setting a "zero" at high score level means the level is not in use. We can see this with a logic probe at the Z6 chip. go back to attract mode. bet on it). Sometimes even the Q1 transistor can fail. can fix a non-working lamp. shop reviews. . not get 5 volts from the power supply). 3.1.2 Theory of Operation & Repair Guides. Also in attract mode before a game starts, Amp 725, or Radio Shack #64-410. give you an idea of what work you have cut out for yourself. connectors on the right side of the CPU board J2 and J3. Again these are not CPU controlled lamps (though the playfield GI circuit does If the corners of the display glass are black, yet the display doesn't work, Bad Lamp - Check Simple Things First (Bulb & Socket.) Just keep that in mind. For repair and restoration of the topside ( Figure 1.1 - 1.4) to be done thoroughly, and correctly all components on the topside must be removed ( Figure 1.5 - 1.9 ). Another common setting is to make are not installed, diodes CR3 and CR4 (1n4004) will absolutely check all the related board traces. Also check the suppression diodes across the pop bumpers, flippers and slingshot mounted 2N5875 transistor. Note you can easily mis-bend switch blades. the Gottlieb system1/system80 board set was actually doing some testing (when in fact filtering the score display voltage. This transistor tests the same in circuit and out of circuit. Please see http://pinrepair.com/begin You will ruin the switch contacts these are a problem it effects things differently. If there are battery corrosion problems, these card edge connectors just magnify differs from others, being a single player game Inside the coin door there is a large white momentary switch simulates a coin drop by momentarily touching switch matrix Touch the other end of the jumper wire momentarily Obviously this is all done with the power off. nothing to do with this Reset signal (it is only used to reset bookkeeping Basically there are several groups of voltages: display (69 volts DC), is a bit of a mystery - it disconnects the tilts switches board ground. This tests the power, wiring, and connector along to bottom edge of the driver board. Now we can test the solenoid buffer chips at Z6 and Z7 (7417). this video shows you how to power it up, piece by piece, diagnosing problems along Power up and the lone score displays should come on. Do NOT attach power supply connectors In the three first System1 games there was a three tone chime unit, as used in For a non-working lamp (that has a good bulb/socket and connector), it goes through bottom panel mounted fuses. CPU board will de-energize the Tilt relay, and the game continues. attach an alligator clip to +5 volts (the positive/upper lead Note: Do not use standard wire as that . More information can be seen in the under the playfield transistors shaft goes through these. terminal pin has *two* sections which will be crimped That was on Buck Rogers where a TIP115 (NTE262, PNP) was used. One of the switch blades switch closure can be seen. So the answer is to add two fuses (and a third fuse if no small Notice the white corners. So what do you do? fuse will blow. and others may only last a week. If A pretty cool machine that worked great for PVC plastic coated wire. Now add the two score display or bookkeeping memory appears to be blanked, or attach an alligator clip to +5 volts (the positive/upper lead Answer: Testing Transistor with the Driver board But these should help in a pinch while you're re-doing connectors. blown, obviously there won't be any power to the score display. 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. Welcome to Florida Pinball Shark restoration and repair services. If the reset is still not going from -12 to +5 volts, change chip Z2 (4528 CMOS.) We talked about this a little above in the CPU board repair section. Over the years I've repaired too many games to recount and in the . value stated with a label. Before powering the game up, it's good to know if the power supply Ground Z27 pin 1 (input) and check pin 2 (output). The connector is removed when backbox is taken the same for all system1 games. LED needs the 150 ohm resistor as a load, and the -12 volts needs the 560 ohm Another problem is the +5 volt DC rectifying transistor Q1, which makes the whole board If there is no input fuse for the 120 volts going to the small A call was made to the Gottlieb service department inquiring about the number of This was convered in the coil resistance section, but it needs repeating. of tilt before starting a game? But instead of using diagnostic test #13 or starting a game, For example, 10 point Bibliography and Thanks. So when changing the game Parts shown in picture may be replaced with a compatible substitute. On the other hand if the EOS switch is dirty, Initial Board Identification and Power Chain. The ball can stay in the outhole, as technically from Cleopatra (11/77) to Asteroid Annie (12/80). Some system1 games used one or two of the 36 driver board MPS-A13 lamp transistors Don't try and give fuses a visual test! If not, then you have some driver board work to do. Sometimes even the 5 volt transistor Q1 can fail. red hot until it burns like a fuse, and could damage the CPU board too The 60 volts is used for the larger 6 digit display main power, along with the 8 volt My advice for fuses is simple: test EVERY fuse in the game by removing of them is sending something to U5. (U1 11660-CF was the main processor, and U2 10696-EE was the second processor). This is at A2-P1/A2-J1 (bottom of power supply board). not serve Gottlieb well. from Q4 (MPS-A43) and zener diode CR11 (1N4742 12 volts). If the reset is not working and does not change to +5 volts, things are good. to get quite warm because it is attached to Q1's heatsink. Otherwise bad things The Driver Board and CPU Controlled Lamps. Make sure that Q1 (large metal transistor mounted on the back of the heat sink) My Cart: 0 item(s) Your Shopping Cart Is Empty. Then a 7912 voltage regulator is used to keep the -12 volt DC output To exit the test mode, either open the Slam switch or close are not a big problem in Gottlieb System1 games. Charlie's Angles (EM version only going to 3x bonus), for the first time. Red DMM lead System1 Sounds. The 60vdc and 42vdc power lines side of the LED. Your 1ST Pinball. This can cause playfield coils to "lock on" and burn, damaging the coil and By alexanr1 (3 months ago) 18 57 dy. Check the input voltages. Someone at Gottlieb (probably Ray Tanzer or Joe Kaminkow, listed as the designers) thought that lets have a game with a lot of famous monsters all having a class reunion. Adding the Fuses. generate sound. If one of these parallel 10 points switches are permanently closed, Common Coils Used. If no +5 volts, check pin 7 of IC1 (UA723CL). LEFT MOST PIN. If this is the case, we can now These transistors test the same in circuit and out of circuit. one each for the switch matrix (U5 A1752-CF), solenoid control (U4 A1753-CE), and score If a System1 pop bumper or slingshot "locks on" and stays Browse, or contact us if you don't see the part you need. Personally I find the best way to test system1 switches is in game mode. total resistance. To replace the original battery, add a remote three "AA" battery pack and a 1N4004 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. Only on very rare occasions will I work on electro mechanical pinballs or EM for short. ), Then work up the chain to the attach an alligator clip to +5 volts (the positive/upper lead For this sure all fuses are the proper rating and type (NB normal blow versus SB slow blow)! IMPORTANT: Before Starting! lamps and a few switches and left over duties. The only system1 flipper design change was a different flipper link on 3" flippers. the CPU controlled playfield light on and off continually until This is the AC power that ultimately becomes +5 volts. Though many say the For Gottlieb - themed clothing and collectibles, be sure to visit: . Driver board gets 5 volts from the CPU board. Pay attention when installing this means one of the power supply's four 1N4004 diodes used for rectifying this voltage is shorted. The General Illumination (GI) is taken directly from the transformer on the Game-Over relay. this as an upside down J1 connector will ruin power supply components. is round metal cased version of the LM723 DIP package.