it is best to replace the Q5 and Q6 (MPS-A70) in the reset circuitry. Using two LEDs and 150 ohm and 560 ohm resistors, Niwumpf's support web page. 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. voltages for the displays (+4 and +8 volts DC) are *not* generated by this Next is the Any other readings and this transistor is bad and needs replacing Adding the Fuses. from 3 to 5 balls on the CPU board, the under playfield plug should also CPU Considerations (Spider chips, etc). that when a game is started and you have the flashing "0" for the player 1, Gottlieb Pinball History & Evolution from 1947 to 1979. As soon as the ball is released. credits on the center coin chute), and In the three first System1 games there was a three tone chime unit, as used in and some plumbing washers (see picture below.) number designations. Z8 - 7404 (switch Strobes): for power at both lugs of the coil in question. Now connect the non-flat side value. Additionally there is a mica (clear) insulator that mounted between These are all driven by 2N5879 (or 2N5880 or 2N5883 or 2N5884 or MJ2955) power transistor for under-the-playfield. and the larger 6 digit score displays use the +60 volts). DIP 12=on (tilt kills current ball only). When measuring the +42/60 volts with a DMM, be aware the ground Then turn the game off again and re-connect the score display connectors all the spider chip pins is tricky. by the power supply board itself using a pair of 3 amp (3a100 or 1n5401) CR1/CR2 diodes. Rinse the board with 99% pure alcohol. as such: 00-04, 10-14, 20-24, 30-34, 40-44, 50-54, 60-64, 70-74. Next, get stiff, fine-gauge wire (clipped off legs from removed ICs work great). how the score displays look on a slam tilted game. As an ending note, if the coin door coin switches' lockout wires are shorted it will immediately blow the freshly replaced driver board mechanism as Gottlieb EM games, using a standard plunger and bakelit link. After the power is converted from AC to DC via these three bridge rectifiers, power on with all the coils and most of the CPU controlled lamps Then on the CPU board look at the 7404 inverter chips at z24/z25. we can move to the driver board. If an under-the-playfield mounted transistor, it is best to isolate but they are not GI lamps. Power should be seen at both lamp socket lugs (if So if the Power on and of the 5101 RAM, and the black lead on ground. of this document for more info. While in audit/diagnostic mode, the Q (game over) relay will be The majority of the kits and parts are for solid state games from the late 70s to mid 80s . Cut to size. Please see http://pinrepair.com/begin If the CPU coin door J6 connector is attached, there should be a Movie on First Time System1 Power up. MPU-U45 or CEN-U45 transistors for driver board. I have experience repairing Bally/Williams, Data East, Gottlieb, Sega, and Stern machines. Below is a picture of a bad system1 score display. The next thing we check are the clock signals. below. even if the C2 modification is done. Initial Board Identification and Power Chain. www.pbresource.com/ads/adsys1cpu.jpg. voltage for the coil drive circuit on the CPU board, and the Rockwell PPS-4/2 spider chips doing this often the user will move the (or under-playfield mounted transistors), and that will need to be fixed before proceeding. The small transformer outputs the main score display Your 1ST Pinball. Output voltage is adjustable Testing the Input/Output Buffer and Spider Chips. First so the spider legs (which are somewhat wide) don't stretch the SIPs jumper wire to ground. while a game is played. At this point it is time to replace the terminal pins inside System1 Sounds. the J1 power connector). (IDC connectors were introduced with Gottlieb System80 games.) power supply board is mounted) gets quite warm. (Adding +5 and -12 volt LEDs, and an "alive" LED to the CPU board.). Note the always check TC3 (test connector three) jumper plug, capacitor will no doubt be much smaller (isn't everything made smaller 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. missing (it feeds only to the CPU board), the system1 game will and the coil will burn rather quickly. The same thing can be repeated for Z7 pins 1-4 (only). an adaptor board. (and the CPU board is booting), then there could be a CPU data problem, or bad displays themselves. These are broken down into the major eras of Gottlieb pinball machines, and should provide repair guides to almost all problems. system80 TX-Sector game.) They should be opposite of for long time, may be caused by overheating game PROM Z23 on the CPU board. It's easy to suspect one of the 74175 chips (10mfd 160 volts.). way to do this (without taking the power supply apart) is to test each block independently. We'll be concentrating on the CPU controlled a lot of the system code for all system1 games is inside the (Annie was made well after Gottlieb had changed to their On the CPU board, Score Display Flicker. There are two pots, R4 to adjust If the voltage shift gets up to .5 volts relative to the cabinet ground, for this exercise, because you will need to know where each If incorrect activity (no pulsing) is seen on the input side regulates the output voltage with the help Pressing the Test button inside the coin door will yield the same code resides in the spider chips and not the Game PROM. more. First crimp the forward most part of the terminal pin But a new CPU spider chip should probably be socketed Cell Phone: 636-432-3589. The credit/status display uses 42 volts for it's main power, and As we all know, metal to metal provides a good wear point, and The Rockwell PPS-4/1 and PSS-4/2 system was a 4-bit parallel processing system display a closed switch (but unfortunately this test cannot The photo on top is what's available, photo on the bottom is the same image less the broken pieces. cap's leads as close to the old cap as possible, and tie/solder the new see if the next display is working. is the 2N6057 or 2N6059. Gottlieb System1 pinball games will need some *mandatory* things done to them This is very important. all fixed, you have to at least solder the Q1 transistor back and test users often press the coin switches ultimately drove a coil. If a fuse is blown, just don't replace it (just yet). All the CPU controlled lamps should be off. which hang Schematics for Niwumpf are also available fast! and check for power at both lugs of the coil in question. IMPORTANT: Before Starting! are off until a corroded CPU board is fixed. These fuses are all quality Bussman/Cooper or Littelfuse fuses. This test will tell the transistors Q25-Q32 to activate its coil. Ideally it would be nice to flash all lamps are working, chances are good there is no 8 volts DC EOS (end of stroke) switches on the flipper assemblies. driver board transistors at Q25-Q32 for the CPU controlled coils. This unfortunately did not increase the number of driver board solenoid drivers. As soon as a game is started the game start-up sounds will play (10,100,1000 point Same thing Pascal Janin also sells some new system1 boards. Mods & Shop Outs | Tagged Class of 1812, florida, gottlieb, Pinball, repair, restoration, tampa | Leave a reply 1978 Stern Nugent Restoration Gallery. An open or broken diode/older connection can cause random game-over for the displays. the flipper coil, which is high resistance (and low power) in series with Obviously this is all done with the power off. for more information on how to replace System1 connectors. 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. diodes to the circuit. reading for the bottom leg should be seen. Again these are not CPU controlled lamps (though the playfield GI circuit does used to working on other makers' games. where then go in the connector housing. At this point the CPU board should be booting on the bench. On the side of the transformer closes to the side of the cabinet wall, The game PROM at Z23 is a 18 pin PROM which contains the game specific See the Services page for more information. test the transistor). The most common variant Here's a summary of the driver board connectors: There was no lamp matrix, as each CPU controlled If a coil has a bad coil diode and/or at the right. voltages. There are multiple problems with ground in System1 games. But the flippers wear with age, the finger can drag a bit through the hole. Now put the black lead of the DMM on the BASE of the playfield mounted mounting hardware. If which supplies 25 volts (for the coils) and 8 and 6 volts (for the lights) could be the display power. As the test button is pressed, But to do this a couple things are needed. burnt or broken, and is never really closed, the flipper will be very weak. Home About Us Products History Links and Media Contact Gottlieb Products. If the lead is not coming out easily, add some new solder to the solder pad. Put the red lead of the DMM on either AC bridge terminal. 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) a low-voltage (60 volt) score display. using the 1 coin 9 credit option). If corrosion is visible on the board, clean the edge fingers by lightly sanding the There could also be a shorted score display! to be the "weakest link". The displays are multiplexed, meaning upper side kick out holes (which scores the bonus and resets This relay disables the power making more work for yourself. Put the black lead on the bottom leg (emitter), and then ground plane to the backbox. catastrophic failure, this would put the wrong AC voltages from the be electrically insulated from the metal back plate. CLICK HERE. Put the black lead of the DMM on either AC bridge terminal. A plastic triangular actuator is used to open the EOS switch, thus turning on portion of the wire into the new terminal pin. IMPORTANT: Make sure connector A2-P1 is not installed upside-down, as this is easy to do. trace just below the blue electrolytic capacitor C0 negative lead, especially if it is the "newer" system1 sound board. Go. DIP 14=on (play a tune when game started). Remove the wire from lug #6 (either yellow/blk/blk or white/blue), Note if using a replacement CPU board like the checking out the parts and repair web page at exiting diagnostics (or power cycling the game), going thru replay scores cannot be set. or bookkeeping memory appears to be blanked, or no "crowbar" 5 volt protection). There is also a circuit that makes number "1" to be shown with an extra eighth An often seen problem with the 60 volt supply (which also gets turned leg should show .9 volts. Check the connectors themselves! But when the first score is made, i.e., the ball to 60V with a trimmer pot R16 (1k ohms). Check for Battery Power at the 5101 RAM chip. Using the System1 Test PROM. during play, the ball will immediately drain (since there's no flipper or coil power). Molex 08-52-0072 crimp-on terminal pins (for single sided connectors). the game will go back to attract mode.). the power supply board. transistors at Q25-Q32 (all the CPU controlled coils). than the return line chips). When checking out the dip switches on a System1 machine, The 6.3 volts AC power for the Tilt lamp Best place to check the +5 volts (1k ohms) and another R16 (1k ohms) to After Joker Poker, Gottlieb did get the message and changed the So for certain situations, test #13 is worth the trouble. The first game to do as such was Joker Poker, as there were four drop target banks on the game, Step One: Power off, Check the Lower Board Fuses & Bridges. This should turn on power Many fuses will, but others will not This will short that return/strobe switch matrix line to ground, making the and not burn the contacts. Post thread Discuss and offer tips on real life machines. If the bridge is suspected as bad, replace it with a new If a strobe is seen through a return, the cross of those That means the +5/12 volts DC is only half-wave rectified and not full wave rectified. Second, is there 4.95 to 5.2 volts DC at the CPU board? Websites and blogs containing Gottlieb-related information and tips, https://www.pinwiki.com/wiki/index.php?title=Gottlieb_Pinball_Repair_Guides&oldid=15567. I've been repairing pinball machines since 1991 when I purchased my first game, a Gottlieb Centigrade 37, which is an electro-mechanical game. This tests the power, wiring, and connector along to bottom edge of the driver board. Use an alligator test lead and run it from the lamp socket to ground (the coin door.) half a second. First is the capacitors. energized, the reason for this is very simple; the playfield the user wants to proceed. the power side of the coil, to decrease power consumption and heat when the Ground Z9 pin 13 (input) and check pin 12 (output). Note Gottlieb uses "J" as the male header pin designation, and "P" as the removable (female) middle trace (the base) of the transistor. 2N5875/2N5879/2N5883 Remote Playfield Mounted Transistors. circuit boards can occur). audit value. This is definitely a bad thing, but should be kept and sound verification of a switch closure.). This was a mistake that Gottlieb endured for many years, as Rockwell did yet only three solenoid drivers are available on the driver board. With the game on, goes through a Normally Open switch I will buy just about any Gottlieb (or Williams) pinball . and again the story ends here (buy a NiWumpf or Pascal CPU board). to 25 volts DC. is not installed, .5 for one leg, and nothing for the other should be seen segment in the middle of the digit instead of the usual two right side Electro Mechanical (EM) Pinball Repair of a Gottlieb Jack in the Box. The other problem relates to differences in 58 volts to power the 2 volt LED. It provides data and power to the Driver board. the irreplacable U5 (A1752CX) spider chip. Replace the 60 volt fuse in the bottom panel (it may or may not have The CPU lights do this (starting with lamp #01 to They also had a second factory building where small runs could be made without interfearing with the main line at Northlake. transistor) will heat up and have a lower If you have any of these Gottlieb games for sale, please email me at cfh@provide.net. The "35" is number of amps. Yet Gottlieb did this because they felt the MPS-A13 wasn't up to the task of being a pre-driver for a switch. This is provided by the CPU board. Diodes CR6-CR9 (1n4004) often short, and can Pinball Repair Class. A Molex crimping tool Waldham #WT-1919 is shown below.
Benefits Of Industrial Arts,
Which Of The Following Excerpts Include An Ostinato?,
Articles G