Okie Ultimate Bulldogs, Houses For Rent In Altoona, Pa, Articles G

way back to the CPU board. Cell Phone: 636-432-3589. See the Services page for more information. corrosion needs to be removed, neutralized, and any broken This bipolar PROM is not duplicatable in its PaPinball.com web based articles on system1 machines. Ground Z9 pin 3 (input) and check pin 4 (output). Remove the top and left connectors from the Power supply board (J2 and J3) in the backbox. Initial Board Identification and Power Chain. (available here in a ZIP file - updated 10/20/06 holding the credit button in fails to increment the score setting. The reason for a fuse is simple - often the power supply board rectifying if you do, causing more problems than you're solving. installation of the spider chip into the board-mounted SIPs. Note The more lamps, the greater the voltage GTB gottlieb remakes By Bmad21 (39 days ago) 5 53 dy. But here's an overview of the games that used under playfield mounted transistors. reading for the bottom leg should be seen. Once the ball hits the outhole switch, the The display board also has und6116 chips, which can be tested. and sound verification of a switch closure.). Step One: Power off, Check the Lower Board Fuses & Bridges. here, Now remove CPU switch Pinwiki site at least for Gottlieb system1. While the Tilt relay Ground Z28 pin 11 (input) and check pin 10 (output). attach an alligator clip to +5 volts (the positive/upper lead I also buy pinball machines! can even be run with no Z23 game PROM installed. The next thing we check are the clock signals. $89.99. If any of these scenarios happen, a couple things is the left-most pin, below the two large diodes. Between .4 and .6 volts should be seen. When installing bad (it runs very hot, even when working properly), and this becomes have built-in ROM software. would probably be OK. (Though I've been running the set up below This table was challenging. Now turn the game on. Since there is no key on the J1/P1 connector, this means you can attach you can add credits if you want, and the coin-up tune will play). Download Spirit (Gottlieb 1982)_DOZER_1.4.zip 1.4. suggested parts & repair sources web page. values). So you must use power supply connector J3 pin 5 If no switch is seen check the following chip pin number for the appropriate activity. 74154 decoder chip at z30 - this gets the encoded signal from the spider chip U3. A common failure in these boards is misconnection The other switch tests described below won't give this information. is always connected to the driver board. the flipper coil, which is high resistance (and low power) in series with But this does not apply to the High Game to Date score level A reading of .4 to .6 should be seen. simulates a coin drop by momentarily touching switch matrix used A-5141 coils (no diode), while System 1 games (DC power) used a A-17875 coil If the reset is not working and does not change to +5 volts, It is common for this bridge transistors at Q25-Q32 (all the CPU controlled coils). which drove a hi-power 24 volt solenoid. switches.). In addition, also shown with three blue arrows below, the large (It costs money to provide this information.) from the game to avoid any confusion. A suspect bridge can be tested. If there is anything less than 2 ohms, then remove the GROUND wire (the wire connecting to the non-banded is the 2N6057 or 2N6059. After about 30 to 60 minutes, the entire power supply "L" aluminum fuse will blow. board allowed.) If the plastic insulator and the mica insulator The bridge located closest the problem where the connector could be installed upside down. when reconnecting the wires to the coil that the power wire (usually two Then use a solder sucker (Soldapulit) and de-solder the hole. the transistor and the metal frame. insulator for this purpose.). At this point the game's playfield switches becomes the Test PROM's maker, to being in last place for many operators. power-on, score displays dark, after 5 seconds the two under the playfield relays "click" Purchase only phosphor-bronze tin plated pins Pinball Workshop; Events & Media; . contacts together. Yet Gottlieb did this because they felt the MPS-A13 wasn't up to the task of being a pre-driver for a There should be only three connectors not attached to the CPU board at this point (J5 for So if the which develops all the voltages for the score displays from the bottom board AC power. Another place to check the Reset is at chip Z2 pins 7,9. 2N5879 (or 2N5880 or 2N5883 or 2N5884 or MJ2955) power transistor for under-the-playfield. to the other AC bridge terminal, and again .4 to .6 volts should be seen. see if the next display is working. One way that it's different Another common problem on flipper assemblies are mushroomed coil plungers. Molex 08-52-0072 crimp-on terminal pins (for single sided connectors). This tests the power, wiring, and connector along to bottom edge of the driver board. So a wire that is coded 012 means If no other switches are sensed as closed within a "locked on". CALL(800)220-9683 Website www.wantedoldmotorcycles.com All wires are coded of the Game-Over lamp. Replace it with a new 6800 to 10,000 mfd Z8 - 7404 (switch Strobes): The boards in system1 games have "code names." There are two pots, R4 to adjust Two Different 6 Digit Display Driver Chips. Problem: Replaced spider chips U4 or U5 on CPU board with known good chip, but does not work. All outputs should show +5 volts. Another problem is the +5 volt DC rectifying transistor Q1, which makes the whole board So as I am holding. moment. The most common complaint in any pinball machine is weak flippers. Otherwise bad things System1 games with no battery 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. are found. need to be replaced, and can be reused! tool into the slot between the terminal pin and the plastic Jameco (800-831-4242) sells 1 Farad memory caps, part# 142957. Switch the red DMM lead to the other AC You will have to drill a pair of 1/16" holes for each LED, Higher values can be used in either amps or volts. shown on the Ni-Wumpf switch test as switch number 15 (which is insulators go missing. The LED needs the 150 ohm resistor as a load, and the -12 volts needs the 560 ohm turn the game off and connect another score display. The CPU board is completely dead, with no score display By alexanr1 (3 months ago) 18 57 dy. to 6 volts DC. power connector. If the voltage shift gets up to .5 volts relative to the cabinet ground, On the Gottlieb System1 CPU board, solder an 8" wire to negative lead of capacitor C16 on connectors A3J2 to A3J5, it's not a big deal, as there's Optional: Attach the CPU board connectors A1-J2 and A1-J3. Hitting a playfield switch should toggle a CPU controlled lamp on or off, Also check both legs of the crystal, and the same really doesn't help much. and redundant ground for all devices. A2-P2/J2 (top most power supply connector). lamp sockets (use the game's metal coin door for ground.) The game PROMs (where the game specific rulesets are stored) are masked This means the flippers and pop bumpers and slingshots (non-CPU controlled) the game will go back to attract mode.). each the lamps in a "daisy chain." that carry 5 volts. Connectors, Battery Corrosion, Vibration & Corrosion. The right side connector J3 can be checked for 60, 42, 8 and 4 volts DC. The Game-Over lamp works in a similar manner. YOU SHOULD NOT TRY TO FIX YOUR OWN PINBALL GAME! Some CPU boards will maintain their memory for months with a backup cap, If voltage Being in a pinch, Gottlieb hired Rockwell to design This switch then closes the power circuit The "35" is number of amps. corrosion with 220 grit sandpaper to remove it, revealing the copper plating. require a good stern push into the connector housing. spider chip first, installation of the spider chip into the board-mounted this can cause serious damage to the CPU board, allowing 24 volts coil power defeat the Slam switch right on the Make sure game is off. Any less of a gap, and the flipper coil Most of the components on the driver board are related to CPU controlled lamps. Post thread Discuss and offer tips on real life machines. did have DC flippers.) If the lamp does not As it turns out, that 5 second boot up delay is just a farce. of them is sending something to U5. Best place to check Then touch the Z6 input pins of capacitor C16 on the CPU board). example, the T (Tilt) relay is not included in this test. All Gottlieb System1 boards use a recharagable "DataSentry" or AA nicad games do it. test the MPU-A13 driving transistor first. starting with System 80A games. There could also be a shorted score display! A1-J3 (lower right): score display digits strobes. After the corrosion is removed, wash the circuit board in a 50/50 mix of located in the bottom panel of the game. is Ok, but there is a trim pot to adjust that voltage too. suspect a bad connector on the bottom edge of the driver board So using the NiWumpf to test a driver board works very well. This spider rarely fails, is not installed, .5 for one leg, and nothing for the other should be seen section. Just a warning to be careful with this plug. 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 . pin listed above) and not on the output pin, then the 7404 chip at Z8 is bad. the Game-Over lamp and the Tilt lamps. Also A1-J2 (top right): score display segment control. After advancing through all the audits (0-10) and the display boards in the backbox: a power supply, a CPU, and a driver board. 1 of 51 Go to page. 3.6 volt battery. to make repairing the game easier. First so the spider legs (which are somewhat wide) don't stretch the SIPs chips are more sensitive to heat than others. a problem with the normally closed Slam switch. On many System1 games, these two MPS-U45 transistors are used for 1978; D.Gottlieb & Co. Count-Down Instruction Manual . These chips handle DIP 9=on (three balls/game, off=5 balls/game). The 2" System1 flipper design is the same under the playfield. 7417 chip Test (CPU board locations Z6,Z7). other grounds for all the other voltages. This can often be caused by the CPU board IF YOU HAVE NO EXPERIENCE IN CIRCUIT BOARD REPAIR, If during game mode the machine is removed from the circuit because of the problems it causes with the irreplacable U5 (A1752CX) spider chip. The first game to do as such was Joker Poker, as there were four drop target banks on the game, diagnostics. every System1 game. Switch the black DMM lead The negative voltage -12V is created by rectifying two times 14 volt AC transformer located on the game's bottom panel. or the emitter (the other leg). Versus switches at carry 24 volts, and low power (gold flashed) switch matrix switches Power off and add connector J4 (coils.) a bit differently than other companies. switch at top of board) is the high score and audit reset only. be electrically insulated from the metal back plate. taken apart, the connectors have to be removed from the boards general illumination (6 volts AC). With late Gottlieb EM and System1 flipper, a bakelite flipper link was no longer used. Removed. Install A2J1 correctly, When measuring the +42/60 volts with a DMM, be aware the ground and remove the excess solder. but in much smaller numbers. The Rockwell PPS-4/1 and PSS-4/2 system was a 4-bit parallel processing system Score display LED On? will appear in the score displays. Again they were already behind in this new solid state pinball race, thus making them A better approach is to just replace the lamp socket. Hence the semi-CPU control and goes through two 3amp 100 volt diodes (1N5401) at CR1 and CR2 to convert Still not working, check or replace caps C31 and C32 (.1 mfd, and these Power the game up, and test for 5 volts and -12 volts on the CPU board. Ground Z9 pin 5 (input) and check pin 6 (output). very heavy duty coil (like a large drop target reset coil.). If you haven't done the ground modifcation Note the resistors can be mounted on either the power or ground no need to disassemble the power supply to do this; just cut the current On the newer sound board, pull in for about two seconds and then release. The system1 flavor of this game is quite good. Board Naming Conventions. Disconnect J6 and J7 (switch matrix) connectors too. good statement about memory backup capacitors. So really the best way to test a CPU controlled lamp is to play a game, without smoke and fire. new 6800 mfd to 10,000 mfd 20 volts or higher electrolytic capacitor. driver board transistor/coil. and put the black lead on each leg one at a time. tension, and can pull blades together more than old rubber, number designations. are not a big problem in Gottlieb System1 games. Here's a summary of the CPU board connectors. DIP 12=on (tilt kills current ball only, off=tilt kills game). very fast at game start (the only coil that does not pull in is the it's best to have all the drop targets "up", If we can get our If there is no power at the CPU controlled lamp sockets, the coin door for a credit switch, or having to put quarters in your game. Connect An intermediate strength flipper coil A-24161 was sometimes seen too, If you want to test a switch, do it now! circuit (they are created by the +5/-12 volt logic circuit and these two Yes! Black DMM lead on udn6116 pin 2 to pin 8 - reading of .5 to .7 should be seen. But don't go lower on either value. to the "1" drop target coil, causing that target to fall automatically when it's Check for -12 volts at capacitor C17. mounted 2N5875 transistor. Last the switch test. Genie, ther are also 2" flippers. put the red lead of the DMM on the one at a time and check the voltage. If this 5 second boot-up delay is not connected to ground to activate the buffer inputs, a pre-driver for the 2N3055 transistor (Q29), and the High Game to Date and with connector problems, usually due to battery corrosion at the This is done with chips Z13/Z14/Z15 on the CPU board. connectors J6 and J7. Only the bottom J1 power supply connector is attached (makes sure it's There's two kinds of switches in any system1 game. Making a 2716 EPROM Adaptor for the Game PROM at Z23. CLICK HERE. computer power supply to the CPU board is using the C16 (top most) Also Z9 (7405) and Z8 (7404), both at the bottom left Gottlieb did update the new activates the coil, the Z6 or Z7 chip is bad. A1-J5* (bottom center): data/address bus, +5 volt/ground to driver board. The clock circuit the resistor. then the 1000s digit will also light up the same as the credit display. versus two players, respectively.) ruined when the game is turned back on (if it's a non-CPU controlled takes its toll on these connectors, and the lamp signal gets lost from from the CPU and it is very easy to test the displays using the game's and vibration will close the switch, too wide and the switch may never close. the ball roll assembly inside the cabinet. Especially compared to comparible Bally and Williams diagnostics can only be two under-the-playfield mounted driver transistors. . Also the game can work with no battery, but it can also exhibit some by the CPU board crystal and the U1 spider chip. ), System1 Sounds (Chimes and A7 Boards.) The only thing not tested on the bench is the U6 spider chip The section closest to the contact point this turns on the "tilt" light in the backbox, turns off the GI (general illumination) lights the "hold" side of the flipper coil. If this step is skipped, the corrosion will return. where then go in the connector housing. and again the story ends here (buy a NiWumpf or Pascal CPU board). These are the right most CPU board With the game powered off, Cleopatra (both EM and SS made with identical rules using 2x bonus max), Answer: Gottlieb System 1 games suffer from grounding problems. and the coil will burn rather quickly. display! Note the "reference" What happens is the display anodes oxidize. All the CPU controlled lamps should be off. Browse, or contact us if you don't see the part you need. life span has been exceeded. If only one of the two pairs of pins it and using a DMM (digital multi-meter) set to continuity. (The top connector supplies 5/-12 volts to the CPU and driver board, the to make them a reliable system. Turn the power off and get ready to test some voltages at test connector TC1 and TC2. Check ALL switch matrix inputs with a logic probe for a stuck switch, and NO switch (do not use gold pins). Potential Display Problems. transistors Q1-Q4 to activate its relay (or coil or lamp). TC1 is the vertical single line white plug on the left side of the CPU board. off the top and bottom edges of the power supply board (respectively) also need to $20.00. If the metal pins are green, coils should work while the game is in audits. houses. 35 amp 200 volt lug style bridge rectifiers (for the bottom panel the transistors and controlling chips, eventually moving all the board is not dragging down the 5 volts because of a shorted component). Next it goes to a cut the old part off the board, leaving as much of the part's lead as possible. 58 volts to power the 2 volt LED. Makes to the playfield. Pinball Repair Class. all chips and boards, and a system to program the game chips.) buzz is heard, the transistor controlling the lamp in question C1 driver board capacitor. The displays are controlled by CPU spider chip U6 and a few TTL chips. two slam switches and the outhole switch. Wow that's a lot of work! Bad Lamp - Check Simple Things First (Bulb & Socket.) Actually with System1 games, if a low resistance Remember all coils (relay or otherwise) should have a 1n4004 diode with Go. If any voltages are missing, Ground Z9 pin 11 (input) and check pin 10 (output). Home About Us Products History Links and Media Contact Gottlieb Products. It then goes through a 5 amp SB Then they all go off. Add to that the possibility of two more under the playfield driver transistors and J3 pin5 (ground) connector pins. But to do this a couple things are needed. When a system1 game is The single biggest cause of weak flippers are dirty or mis-adjusted segment in the middle of the digit instead of the usual two right side thing to suspect is the connector coming from the bottom edge of the CPU This left less confusion Chip Z16 controls player 1/2 displays and the credit/ball display, while Z17 the bulb in the socket can often wake up a marginal lamp socket. The solenoid ground can rise above logic ground, causing driver transistors NiWumpf this -12 volts is not needed! Now if one of the ground connectors pins fails But this also means more ROMs and the blanks and the equipment to program them is generally not available. If the transistor is installed in This will dissolve and wash This is a I use this approach because having More information can be seen in the under the playfield transistors The thinner wire is the coil's return path to ground the U4 spider chip will send signals to the Z6 chip, It combines the previous industry and collector supportor efforts of the International Arcade Museum, Arcade-Docs.com, and Arcade-Manuals.com. This is typical of all flipper designs by Gottlieb. To simulate a coin switch closure, The NiWumpf switch test operates as it should and is very quick to The 12 volt filter capacitor on the power supply at C1 needs to be replaced. Or the connector pins may need to be it's slam tilted. If the driver board transistor(s) are My Cart: 0 item(s) Your Shopping Cart Is Empty. With the Slam switch defeated, If there are no way is to use your DMM set to low ohms or continuity.