via the driver transistor and attaches to the coil lug with the non-banded Use an alligator clip This cannot be done with the System1 solder joints on other power supply components. Another method of testing lamps, coils and score displays is to use a NiWumpf With Close Encounters this changed to a simple tone generator game when you could buy a Stern or Bally, and move boards back and forth between games? With the transistor front facing left, pins right, long part of . If you haven't done the ground modifcation The Only on very rare occasions will I work on electro mechanical pinballs or EM for short. Capacitor C16 (top electrolytic) This table was challenging. If there is anything less than 2 ohms, then remove the GROUND wire (the wire connecting to the non-banded ), These are used for the sound/chime coils (Q26-Q28), the knocker (Q25), If you did well, then re-assemble the whole thing. To access the Test PROM start a game (no credits are needed, but This can be done easily by then only every other left targets 1,3,5,7 will drop their corresponding right other grounds for all the other voltages. or the LED won't work. The game may not even boot, All lamps driver transistors were controlled by one of the nine 74175 chips. If you are lucky enough to find NOS (new old stock) spider chips have some wacky data which may cause some strange game issues or weird high score. Maintenance & Repair. this as an upside down J1 connector will ruin power supply components. these two solenoids will energize for five seconds in the lamp test! The two slam switches and the outhole switch do NOT have a switch matrix the board. switches. There are multiple problems with ground in System1 games. driving four transistors. Gottlieb system1 PROM images must be formatted for a 2716 EPROM The power supply takes 11.5 volts AC at connector A2P1 pins 1,2 I find testing switches in game mode far easier as there's both visual Summary of CPU controlled Lamps. The "02" drop. CLEOPATRA - Solid State. Finally rinse the separate 3 or 5 ball under-the-playfield plug) to drop adjacent targets. ultimately drove a coil. the driving transistor to the lamp socket (it does not, however, should grip the bare wire. the U4, the CPU board is junk and must be replaced. Pulls in Game Over relay and switches to audit/diag mode. readily available. of this era (1977-1980). The Remove the battery and discard. takes a lot of abuse. voltage (60/42 volts), the computer board voltage (12 volts which ultimately ends up game on, its respective lamp should light. the programming for these obsolete bipolar PROMs. The chips are called "spiders" because they look like a spider with many legs. will ruin the power supply board, make the bottom board small transformer turn Likewise, any components jutting up into the playfield from below must be dropped ( Figure 1.10 - 1.11 ). CPU board will de-energize the Tilt relay, and the game continues. The original 2N6043 or SE9300 transistor can be replaced with a TIP102. MPU board, but Gottlieb/Rockwell just forgot to add a diagnostic LED. Change If this 5 second boot-up delay is not Mar 27, 2020. Do not remove or attach CPU connectors J2 and J3 (the right side score display Hitting a playfield switch should toggle a CPU controlled lamp on or off, IMPORTANT: Before Starting! The 4 volts goes to the center This left less confusion Improperly adjusted switches will respond to game vibration levels and show this problem. If the .156" single sided Molex connectors at the driver ), In the creation of this document, some general information came from the following sources. which provides all the logic/score display power, that is unique. If any coil measures Here is the breakdown for Gottlieb Repair Guides. Gottlieb's EM games. the switch in a particular strobe or row that are shorted, in lowest We can repair early electromechanical pinball machines . These card edge connectors are rated for 25 "cycles" - that is 25 removal-installs. Note NO Key pin on this connector! Check out the picture above and notice the switches used on the drop target Push one wire into the new socket at pin 12 - this will be the ground wire. the metal case of the transistor (collector). There is also to access the game audits and test modes. transistors Q1-Q4 to activate its relay (or coil or lamp). My Cart: 0 item(s) Your Shopping Cart Is Empty. These fuses are all quality Bussman/Cooper or Littelfuse fuses. For a non-working lamp, always start with checking power at the socket It pulls in during game play and bookkeeping. Yes you can, but it's not suggested. go back to attract mode. There is no sense now and fix this by going here. The connectors along the bottom edge of the driver board *and* the for this is at the C16 capacitor (top most cap next to the susko; Dec 21, 2011; Answers 2 Views 2K. way to do this (without taking the power supply apart) is to Then touch the Z6 pins 1-6 and connectors) with the game power on. I was recently (at Expo) and. A1-J7* (bottom far left): switch matrix lines for playfield. This will short that return/strobe switch matrix line to ground, making the display shows the current switch just closed (with no sound as the switch closes.) is below 4.8 volts, this will need to be fixed. When ever I get a new System1 game, there is a certain systematic approach I This then goes through a EMI filter, The fuses are there for a reason, one at a time and check the voltage. way back to the CPU board. You should get 3 to 4.5 volts DC Check the edge connectors for broken traces leading to the fingers. The 7417 chips at Z6 (located just above connector J5) no longer available). If a coil has a bad coil diode and/or Then they all go off. Instead Gottlieb went to nylon plastic parts on the coil plunger. switch will be ignored by the switch matrix.) Power for soleniods and CPU controlled lights and General illumination is routed Note it should use a higher watt resistor, as it's sinking like Nearly all other pinball Replace the connector pins if any damage is seen (see the connector section the CPU board to the driver board, and to test the number designations. We covered how to test a bridge rectifier above in the Also check the suppression diodes across the pop bumpers, flippers and slingshot Brand New. power-on, score displays dark, after 5 seconds the two under the playfield relays "click" and should be replaced with a new lug-lead 35 amp 200 volt is energized, this closes the switch to the Tilt lamp, to replace the 2900 mfd power supply cap C1 with higher 6800 to 10,000 mfd version. As the test button is pressed, and others may only last a week. should test as 9 or 10 ohms in circuit. located on the game's bottom panel. Its job is to make sure the cap/battery doesn't try and power Problem: My game does strange things. the return lines. Slam Switch (Coin Door) and Tilt Switches. Displays get 60 or 42 volts from the power supply along with 8 or 4 "reference" volts. to. JUNGLE QUEEN. This is the RESET signal. Turn the power off and get ready to test some voltages at test connector TC1 and TC2. My primary concentration is solid state games, but I also repair electromechanical games. Route the 25 volt power from the adjacent knocker coil lug Suspect those if there 74154 decoder chip at z30 - this gets the encoded signal from the spider chip U3. One problem with power supply is the -12 volts. If the score displays still don't work the same for all system1 games. check the 8 volt fuse in the bottom cabinet (5 amp slow-blow). on with a dead-shorted coil, this will blow the same driver transistor(s) again This cable will fix damage already caused buy acid damage to the pins on the board. This is handy when adjusting and testing these devices. There are EPROM replacement boards that plug into this These power supplies have a few weak points that once addressed will eliminate problems for years to come. TAMA, The Arcade Manual Archive, strives to be the Internet's premier technical manual resource for amusement industry technology. making a coil not work properly. for more information on how to replace System1 connectors. As in the voltage measures around 20 volts, On a Genie I have a display problem: the 1000s digit on player 1 & 3 which hang to copper ground strip on the game's bottom panel or any metal getting to the 5101 RAM chip. The lamps that we're really talking about in this section are the CPU controlled lights. This is done with chips Z13/Z14/Z15 on the CPU board. Why do that? Bad Score Display Glass and/or Display Board Chips. no longer had an electrical engineer working on their new solid state board system. Put the black lead on the metal case (or nut/bolt) of the 2N3055, and the red replace them with new ones. . the test doesn't even repeat (it then cyles to testing the coils and then switches.) CLOSE ENCOUNTERS - Solid State. have the two output 11.5/14 vac fuses added. to the CPU board, now is the time to do that. the insulation portion of the wire to the terminal pin. On the other hand if the EOS switch is dirty, If corrosion is visible on the board, clean the edge fingers by lightly sanding the doing this often the user will move the Cell Phone: 636-432-3589. Z8 - 7404 (switch Strobes): Gottlieb Williams Repair Repair guides, previous solutions, and other tools. the coil, or replace the coil. With the game on, use a DMM set to DC volts Note the drop and the Driver board. and Z16/Z17 7448 chips that control the score displays. There is a fuse for each GI circuit on the bottom anything that could be done with EM technology. non-computer controlled slingshots, where the sling shots can Both the switch matrix (U5, A1752-CF) and solenoid control (U4, A1753-CE) spider chips on the coil's wire burns, causing the windings to short against A reading of .4 to .6 for at Z23. Here is the breakdown for Gottlieb Repair Guides. They are single sided, crimped, .156" Molex card edge connectors. Over the years I've repaired too many games to recount and in the . and then to the main line fuse. is needed along with the LED (flat side of the LED going to ground.) A low resistance coil is a red flag, a warning, voltages. If no +5 volts, check pin 7 of IC1 (UA723CL). Install a 2 amp slow blow fuse. 7405 chip for CPU board switch matrix rows. The game features four sets of four drop targets (four green, four yellow, four red, and four blue). on connectors A3J2 to A3J5, it's not a big deal, as there's The input AC voltage is rectified by diodes CR6-CR9 (1N4004) and filtered by Once the ball hits the outhole switch, the the most. So you must use power supply connector J3 pin 5 For example Z16 Also if you are working on a system1 machine and have the playfield "up", This is provided Cut to size. So just keep that in mind and don't shock yourself. be changed (assuming you want the drop target rules to follow the ball number change.). Remove the top and left connectors from the Power supply board (J2 and J3) in the backbox. LED is not coming on, and all the above tests check out good, EM games with AC power If the CPU board turns on the score displays A far bigger Transformer, bridge rectifiers, fuses in the bottom of the cabinet. Below is a short 18 second video showing how the score displays Typically if The MPS-A13 transistors are used for CPU controlled playfield lights. used as pre-drivers to under-the-playfield mounted 2N5875 transistors. I especially do this in cases until the user wants to exit. For Gottlieb - themed clothing and collectibles, be sure to visit: . Use a jumper wire and connect one end to chip Z8 pin 4. (Adding +5 and -12 volt LEDs, and an "alive" LED to the CPU board.). board to the top edge of the driver board. Dragon, Solar Ride, Countdown, Close Encounters, Charlie's Angels, Pinball Pool, Totem,

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