This is If this connector is put on wrong, it will ruin many power supply components. E-Mail: chrishiblerpinball@gmail.com. Check the input voltages. until the user wants to exit. All CPU connectors can be removed except for the left most J1 (power) connector. problems if the power supply rectifying diodes short. If you aren't up to repairing your circuit boards yourself, I highly recommend CPU board. leg should show .9 volts. with the game power on. If there's no This will When a continuity and should be replaced with a new lug-lead 35 amp 200 volt (U1 11660-CF was the main processor, and U2 10696-EE was the second processor). Within a minute or so the coil becomes a dead short If the coil does not fire, The first step is to modify the original "mandatory" ground mod. The game PROMs (where the game specific rulesets are stored) are masked Push another wire into your new socket at pin 24, this will be the +5 wire. Connector A2-P1 is removed when the backbox is taken off. One of the worst features of a system1 game are the built in diagnostics. closed switches, after about 5 seconds the game will exit test #13 and Cut the old terminal pin from the wire. The trimmers should be replaced with new ones. the cap/battery quickly). Gottlieb System1 Bottom Board Diode Strip Wires: Unlike most other pinball makers, general illumination lights (non-CPU controlled) These playfield mounted transistors added another While in audit/diagnostic mode, the Q (game over) relay will be (available here in a ZIP file - updated 10/20/06 hardware. 5 volt AC line. buffer outputs. that carry 5 volts. sure there is a 1N4004 diode installed across the coil's lugs. 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. The "35" is number of amps. Display test for player #1 and #3 score displays. If no other switches are sensed as closed within a Versus Aligning If you Hence these two connector housing (see picture below). The only difference is on system1 display they have a "nipple protector" line striper. Don't sit down when doing this, this test goes the A2J1 female connector from being installed one pin to the right choice, go with the udn6116 variant, as the 6116 chips are available Tuukka Kalliokoski web articles on system1 overview. Heat the finger, apply Put the black lead on the bottom leg (emitter), and then the connector from power supply A2-P2 (top most connector) to CPU board A1-J1 (left blades of the coin door switch, essentially shorting the coin door switches The MPU-U45 transistors are capable of driving up to two lamps or a high resistance relay coil. Mods & Shop Outs | Tagged Class of 1812, florida, gottlieb, Pinball, repair, restoration, tampa | Leave a reply 1978 Stern Nugent Restoration Gallery. back-up capacitors, the minus and positive leads are often not labeled Gottlieb Test PROM for Z23. The following 13 minute video shows a systematic way to power on a Gottlieb system1 pinball It then goes through a 5 amp SB If the fuse is good, also check the bridge rectifier closest about 4 ohms of resistance. These are all unregulated voltages. Remember another common problem with Gottlieb score displays is dimness. If this is not done, the under-the-playfield mounted 2N5875 will not test reliably. with connector problems, usually due to battery corrosion at the doing this often the user will move the really doesn't help much. the coil/relay being driven is not locked-on. ultimately drove a coil. power supply board is mounted) gets quite warm. Also check the suppression diodes across the pop bumpers, flippers and slingshot This means removing four corner machine screws, then On the COMPONENT side of the board, put the RED lead of the DMM on the If not, then you have some driver board work to do. lamps are turned on and off by the CPU board through the driver board, game PROM and now the game and CPU board work fine. CLEOPATRA - Solid State. Check the edge connectors for broken traces leading to the fingers. Brand New. the problem (and sometimes allow the leaking battery electrolyte to "Daisy chain" the 25 volt DC coil power to all three chime coils' (shorted) low-resistance coil can damage the driver board. and which are not. for places to buy these parts. (See the two pictures below.). making this type of score display board harder to repair. If the coil fires, time to move to the next step and test If a system1 game does have IDC connectors, someone probably especially be an issue around the Z6,Z7 chips (to the right of the battery) (which the stock Gottlieb test does not). 74175 Chip Test (driver board locations Z1-Z9). See the Parts Suppliers section of this web page This tests the power, wiring, and connector along to bottom edge of the driver board. If 60 volts and/or 42 volts are now missing, first check the four 1N4004 diodes (CR3,CR4,CR6,CR8) on back to the transformer lug #7 (where the yellow/red/red or white/brown wire was attached.). A1-J6* (bottom left): switch matrix lines for coin door and slam switch. to the CPU board to prevent the over Any less of a gap, and the flipper coil Bally, Stern, Chicago Coin, Sega Pinball, Midway, Data East, Atari, Jersey Jack, Zaccaria, Gottlieb, and many more! banded diode coil lugs. "Your mileage may vary" is probably a using the 1 coin 9 credit option). Power back on. Apron. Power comes to the power supply A2 board, with the red DMM lead, and the black DMM lead connected to ground. test the transistor). Now put the red lead on the "base" (top) lead of the is a bit of a mystery - it disconnects the tilts switches coils should work while the game is in audits. 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. I would highly recommend zeroing out the game's audit memory. side of the diode attached. All bets Before starting the switch test, Solder a wire from the other lug of the fuse clip in prior step 1978; D.Gottlieb & Co. Count-Down Instruction Manual . come from the 69vac bottom board voltage. Attach the other end of the wire to a screw holding the metal backbox frame in place. the high power side of the flipper coil is about 2 ohms. inside the coin door with their fingers to add credits. switch number displaying on the credit/ball display is slooow. DIP 9=on (three balls/game, off=5 balls/game). NOTE 2: Any transistor that tests "bad" should also on the workbench. Put the black lead on the center lead of the 2N6043 or SE9300 A-17875 - Flipper coil, 2.8 ohms (power) and 40 ohms (hold), A-5194 - Slingshot Kicker, Pop Bumper, 4.5 ohms, A-5195 - Outhole (early), Knocker, Kickout Hole, 12 ohms, A-18102 - drop target reset (3 targets or two coils used on bigger banks), 9 ohms, A-18318 - drop target reset (4 targets), 7 ohms, A-17891 - drop target reset (5 targets), Roto target, 3.5 ohms, A-16570 - Outhole (later), Kickout Hole, 15 ohms, A-16890 - Game over relay, Tilt relay, coin lock out relay, 230 ohms, A-17564 - Vari-Target Reset relay, 50 ohms. Close Encounters of the Third Kind (EM version only going to 3x bonus), and then to the main line fuse. The major difference between Gottlieb EM, System 1, and System 80 If a fuse is blown, just don't replace it (just yet). require a good stern push into the connector housing. Battery corrosion and age often are all high power tungsten contact which carry 24 volts DC. (there should be labels for each of the fuses). These are all driven by the power line attached to the coil lug with the banded side of the diode. show a fuse that is cracked or a fuse holder that is bad (and there switches, and can be re-faced with a file. all the power on to the flippers, pop bumpers, slingshots without having to start a game. DIP 12=on (tilt kills current ball only). For example here's a list of data points and where they go: Note the 7448 chips aren't shown in the table above. Part of the documention. The under-playfield plug adjustment connects A plastic triangular actuator is used to open the EOS switch, thus turning on Just cut of the old capacitor off the power supply Now the next problem to overcome are the score displays, or The Just a water clear style LED (that's important that To zero out this memory position, sure all fuses are the proper rating and type (NB normal blow versus SB slow blow)! short from the coil voltage to the switch matrix. for this exercise, because you will need to know where each U6 spider chip (10788-PA). and redundant ground for all devices. Any removed chips After removing the damaged components, The bottom panel (lower cabinet) is where the power all starts. Typically if At this point it is time to replace the terminal pins inside a coil). (See picture below.) The MPS-U45 is used for the tilt and game-over relays (Q2/Q1), and good statement about memory backup capacitors. So there really is no need to do this Testing System1 Transistors with the Driver Board Removed. the case, sorry but there is no replacement available for Posted on February . Make sure that Q1 (large metal transistor mounted on the back of the heat sink) The whole Gottlieb system was different in This is a 60 volt, 8 amp NPN darlington. junction of the resistor and the trace leading to . system1 flipper have that certain "tank like" robust feel. Q1 transistor. First, get a 24-pin solder tail socket to plug into the EPROM socket. for long time, may be caused by overheating game PROM Z23 on the CPU board. ), Gottlieb's system1 game "Pinball Pool" is essentially a reissue of Find out how it works. Second, is there 4.95 to 5.2 volts DC at the CPU board? Additionally, we encourage you to visit the web sites of manufacturers currently in operation: Namco Arcade, Sega Arcade . potential of the transformer above zero volts. by the CPU board crystal and the U1 spider chip. There is a fuse for each GI circuit on the bottom The second slam switch is also a Normally Closed switch, located at the end of the Use the top positive lead of cap C16 for the read DMM lead. The connectors along the bottom edge of the driver board *and* the The most common complaint in any pinball machine is weak flippers. PROMs were identified by letters from "A" to "R", including a "T" test PROM. Displays get 60 or 42 volts from the power supply along with 8 or 4 "reference" volts. When a system1 game is Unfortunately these things can't Power in through the line cord. reason for this is simple - taking apart an original system1 power Real Pinball . This bipolar PROM is not duplicatable in its Ground Z28 pin 3 (input) and check pin 4 (output). total resistance. Why do that? I use this approach because having Gottlieb specified their bridge rectifiers as a VARO VK438 or VL038. Freeplay, fast boot, 7 digits Black Hole is here, Tips section of Jim P.'s site with Gottlieb tips, Peter Hall's site dedicated to Gottlieb System 80 pinball machines, History, tips, tuning, links, and lots of good stuff. need to have some way to test the U4 spider chip First the lamps are tested for 5 seconds, then the eight CPU If you did well, then re-assemble the whole thing. (Note if no playfield switch is activated within 5 seconds, A value of .6 to .7 should be seen. drained into the outhole. In this This switch is normally closed, shorting out the low power so all the playfield switches are "open." it's best to have all the drop targets "up", solder joints on other power supply components. This 7 minute movie explains the Gottlieb System1 solid state pinball system blown, obviously there won't be any power to the score display. spider chip first, installation of the spider chip into the board-mounted with the other end of the alligator clip. this voltage to 12 volts DC. I have been restoring pinball machines since 1999. is on the power supply board. If voltage $30.00. Gottlieb Fast Draw not resetting properly ; most EM pins To: All Saw this the other minute. be modified so the useless Slam switch is not an issue (see Wow that's a lot of work! Feeding your pinball habit. for the first time. go to the driver board and examine the connectors along The targets are worth 500 points and advance the bonus 1,000. Hint: the green ground wire on this connector goes to the left better than the stock Gottlieb System1 tests. Mount two fuse holders next to the small transformer. This test will show for example all The first System1 revision of the Driver board as used on Z8 - 7404 (switch Strobes): The Tilt relay is then controlled under-the-playfield mounted transistors). this game does not (yet!) can happen. away the water. These are regulated voltages. That is, why a lot of to. Sometimes Q3 and/or Q4 are used and those are the GI (general illumination) 6.3 vac lamps used for the playfield This provides 60/42 and 8/6 volts DC to the score displays. That is, they could buy white wire, run it through their Again these are #44 or #47 bulbs, but their power is 6 volt DC (not AC), provided to Check the edge connector fingers (pins) for "green". not get 5 volts from the power supply). fuse and a bridge there should be a 5 second delay after power-on, and then A better approach is to just replace the lamp socket. Did you buy a game in unknown condition out of a warehouse? The hold side of ball roll tilt cage. give you an idea of what work you have cut out for yourself. Otherwise keep reading Dead CPU: Next Steps. First, is there any battery corrosion on the CPU board? This delay made you think the boardset was checking itself, when in fact it was just a 5 second But don't go lower on either value. Molex 08-52-0072 crimp-on terminal pins (for single sided connectors). This should show 5.0 to 5.1 volts DC. cabinet frame piece in the backbox or the coin door. turning the Tilt lamp on. below. The connectors that are most often rotted from battery corrosion are shown These batteries die and leak their corrosive liquids easily, causing much Gottlieb had a unique situation where they owned an actual wire color Put the black DMM lead on the right transistor lead. tests (11/12), diagnostic #13 will engage. Problem: While resetting the score levels stored in memory, But there's one last test, game diagnostics. the irreplacable U5 (A1752CX) spider chip. power on with all the coils and most of the CPU controlled lamps 12 volts, killing chips on the sound board (in particular the hard to find and In this voltage is not 14 to 15 volts, IC1 is bad. is testing the transistors at "low load", which is unlike how Cut to size. or the LED won't work. one each for the switch matrix (U5 A1752-CF), solenoid control (U4 A1753-CE), and score Last suspect the CPU board spider chip U3 that initiates the encoded lamp signal. The T-relay is the tilt relay. segments. The negative voltage -12V is created by rectifying two times 14 volt AC transformer Then use a solder sucker (Soldapulit) and de-solder the hole. After the power is converted from AC to DC via these three bridge rectifiers, though Bally and Williams games did that too for their first few titles.) I would also check the 74175 chip on the driver board (using Transistor Q2 (TIP31c) this usually indicates one of the slam switches are open. At this point, the mandatory grounding modifications are done. coil in question. There is no sense It's always best to check the wiring on the playfield mounted transistors burnt or broken, and is never really closed, the flipper will be very weak. backbox 6.3 volts AC general illumination, playfield 6.3 volts AC general illumination. life span has been exceeded. you can even try and start a game (the chimes will sound, the coil. Capacitor C16 (top electrolytic) A pretty cool machine that worked great for PVC plastic coated wire. clearly outside of the 10-14 return1 row of switches). lamps and a few switches and left over duties. This eventually causes the large C1 +5/12 volt filter capacitor Power on and On system1 games, the flippers are very well constructed, but they do wear. Below is a picture of a bad system1 score display. solid state pinball games. CPU board (if you have not done that already). board. What is unique is the drop target change between 3 and 5 balls isn't a CPU board DIP If you hold in the Game-over relay, only the non-CPU controlled here. native form, as blank PROMs are long gone. If the fuse still blows, the problem Plastics. Because again, Rockwell wanted to make it look like tilted, the Tilt relay energizes and stays energized Now that we have a reset and clock circuit, One thing that Gottlieb never did was use LEDs on their circuit boards. (replace the under-the-playfield mounted transistor {if used}, driver board transistor, and pre-driver transistor.) the coin door for a credit switch, or having to put quarters in your game. This tests the connection from STERN Pinball Machine ROLLING STONES MICK TARGET Repair Kit #502-5094-00 (6204) - NOS - FREE SHIPPING . columns (S0-S4), for a total of 40 switches. MOV on the line filter (unlike Bally and Williams), so there is no surge protection in system1 games. via the driver transistor and attaches to the coil lug with the non-banded First an adaptor board must be purchased or made. C4 (1000mfd 35V) needs to be replaced. isn't fast enough to "see" a dirty switch bounce open and closed. no longer had an electrical engineer working on their new solid state board system. section. In order to check the buffer chips, we will activate The connectors A1-J7* (bottom far left): switch matrix lines for playfield. Another Version of the Switch Test (Switch Display Ficker Test.) GTB SPIRIT (#673 - 1982) bug with spot targets bonus By noflip95 (61 days ago) 6 59 dy. The +5 volt while a game is played. This will tell the So for certain situations, test #13 is worth the trouble. Then strip the Dragon (EM version only going to 2x bonus. The pictures below are from actual Gottlieb documents, so it's their property. We covered how to test a bridge rectifier above in the but they too can have problems (breakage, dirty, mis-adjusted.) to ground, this can cause a problem where the game looks to be "slammed tilted", Normally Open switch. this is another alternative way to test switches. identified. Connector Warning - Power Supply A2J1 Connector. This version of "switch test" is far easier, less stressful, and quicker. yet only three solenoid drivers are available on the driver board. To double check you have found the correct Blown Fuses section.