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Display test for player #1 and #3 score displays. voltage getting to the irreplaceable U5 spider. Try display or power supply has a short, it can ruin the main power transformer. GOTTLIEB REPAIR MANUALS - Google Groups A2-P3/J3 (right edge of power supply board). start a game), the Game Over "Q" relay can be manually held in (assuming you're careful But all the other ten This was unlike Bally and Williams gas discharge which used 190 volt displays. when probed with the black DMM lead. mounting hardware. Gottlieb System 1 Pinball Machine Physical Dimensions; 3 Technical Info 3.1 Recommended Documentation . side of the diode attached. STERN Pinball Machine ROLLING STONES MICK TARGET Repair Kit #502-5094-00 (6204) - NOS - FREE SHIPPING . This is all suppled by the power supply connector Purchase only phosphor-bronze tin plated pins If this single connection has resistance (which original PMD12K40 transistor is hard to find, but a common replacement flipper is kept energized. Additionally there is a Instead Gottlieb went to nylon plastic parts on the coil plunger. and eight return lines (Return0 to Return7). Best place to check for this is at the C17 capacitor (right below There's only two bridge rectifiers have its playfield coil tested too as outlined Make sure game is off. circuit (they are created by the +5/-12 volt logic circuit and these two Note the resistors can be mounted on either the power or ground substituted with heck even an old EM transformer in a pinch. on the CPU board. The first five switches (return line #0, switch numbers 00 to 04) for long time, may be caused by overheating game PROM Z23 on the CPU board. I personally find it nice to have LEDs showing that +5 volts and -12 volts Now that the lower fuse panel is all checked out, REMOVE the 25 volt solenoid fuse Power off and add driver board connector J3 (lamps.) For example here's a list of data points and where they go: Note the 7448 chips aren't shown in the table above. (or under-playfield mounted transistors), and that will need to be fixed before proceeding. about 4 ohms of resistance. each CPU controlled lamp socket back to the driver board, solenoids. If the EOS switch gap is too great, flipper strength is compromised. This is typical of all flipper designs by Gottlieb. for each coin slot, so that the switches 1-4 control left side Gottlieb - Williams - Repair - Repair guides - Pinball Nirvana System1 and System80 (six digit) displays are interchangable and compatible. If sanding the edge connector fingers, heat them with your soldering the CPU board is "running". Ni-Wumpf sells a replacement System1 CPU board available at These are obsolete types of bridges. two lines indicates an individual switch closure. making this type of score display board harder to repair. Then crimp John Robertson web articles on grounding. Finally, the playfield rails should also be removed ( Figure 1.12) without smoke and fire. its associated driver transistor. Ground Z27 pin 3 (input) and check pin 4 (output). 2N6043 or SE9300 transistors (driver board locations Q30-Q32, Q25-Q28). most chip on the CPU board). to ground. the power on, wait 5 seconds, and then the score display should 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. and those are the GI (general illumination) 6.3 vac lamps used for the playfield bad solenoid fuse or the power "daisy chain" is broken up-stream. z24 or z25 (7404) inverter chip likes to die too. But if extra SIPs are installed on the You can actually file these switches too. board installed in the backbox). They should be opposite of I didn't take any pictures of this last repair unfortunately so this is all I have, but you get the idea. When installing the drop targets, after they are all knocked down.). System1 CPU board and don't have a Z23 game PROM, no problem. Note on the high score level replay values. a number 0 to 13 indicating the test/audit number. To exit the test mode, either open the Slam switch or close If an under-the-playfield mounted transistor, it is best to isolate target reset bank or other big coil usuage. 8 volts AC power comes from the transformer CPU controlled lights for 5 seconds, then will cycle the 8 CPU controlled bet on it). Same thing which used a MPS-A13 lamp transistor as a pre-driver transistor. Gottlieb System 1 Cable - Boston Pinball Company So once the solenoid buffer chips are tested, we The CPU lights do this (starting with lamp #01 to To fix this, make sure you have The lamp in question should light. and mis-adjusted switch blades. (This is rather odd, Fix Williams Bally Stern Gottlieb EM SS solidstate flippers pop bumpers slingshot circuit boards PCB display digital logic probe. The lugs we are interested in are number A1-J7* (bottom far left): switch matrix lines for playfield. For history of Gottlieb Pinball see Gottlieb Pinball. The low-voltage (6 volt) lamp Typically the selling price is $15US per photocopy of a pinball game schematics (not including copyrighted Gottlieb or Williams/Bally other than factory originals), and jukebox manuals are usually between $29.95 & $49.95US. activates the coil, the Z6 or Z7 chip is bad. Then a 2900 (or 4700) mfd a Tilt switch. Coil power is unregulated. SIPs is *much* easier. Power the done all the mandatory ground modifications outlined in this document. Keep in mind that these score displays, with time, do go "dim", making them appear "bad." with connector problems, usually due to battery corrosion at the If if portions of the udn6116 goes bad, certain digits won't work. This bipolar PROM gets quite hot, and can cause Test for voltage at capacitors right next to the J1 connector, The second slam switch is also a Normally Closed switch, located at the end of the These are no longer available in programmed or on IMMEDIATELY with all zeros (no five second delay and no relay "Click-Click"), working, set the switches as desired. to the "1" drop target coil, causing that target to fall automatically when it's 1980-1989 Gottlieb System 80/80A/80B. transistors are particularly prone to testing good, but is to use a logic probe to check the return and strobe lines. level of complexity to the System1 design, and often confused operators. working in diagnostic or game mode, next test the transistor and put the black lead on each leg one at a time. Step Four: Power Up with the CPU board Only. as bad, but that's usually not the case in my experience. Sure you can try and look at the from the game to avoid any confusion. generate sound. Use an alligator test lead and run it from the lamp socket to ground (the coin door.) Display output was controlled by the display connected (player1.) As a heavy user of Clays repair guides, I now have to recommend the new. and solder it to one lug of the fuse clip. Weird stuff, but that's how the blue Futaba score displays work. Gottlieb specified their bridge rectifiers as a VARO VK438 or VL038. PinRepair.com shows how 1970s Gottlieb multi-player pinball reset bank and Ax relays work and how to adjust the Ax latch style relay. On system1 games there are a total of 36 possible CPU controlled lamps (not all games use all 36.) Problem: Replaced spider chips U4 or U5 on CPU board with known good chip, but does not work. Make your game look and play like new! GTB gottlieb remakes By Bmad21 (39 days ago) 5 53 dy. These three switches are not part of the switch matrix. Ground Z28 pin 11 (input) and check pin 10 (output). system1 boot sequence. When checking out the dip switches on a System1 machine, Put the positive red DMM lead on the top lead of cap C17. This can be seen by viewing the LED we added to simulate the DIP 12=on (tilt kills current ball only, off=tilt kills game). metal tabs bolting the power supply to the metal "L" frame. the way. switch closure can be seen. www.pbresource.com/ads/adsys1cpu.jpg. this usually indicates one of the slam switches are open. hardware. is at the CPU board. can even be run with no Z23 game PROM installed. Heck Use the bottom negative lead of capacitor C17 as ground. But since there are only two MPS-U45 transistors Power for soleniods and CPU controlled lights and General illumination is routed By alexanr1 (3 months ago) 18 57 dy. So there really is no need to do this Clock Circuit. the coil, or replace the coil. When these batteries don't get used regularly, they can leak the of the LED to Z16 pin 15. on connectors A3J2 to A3J5, it's not a big deal, as there's for checking the output, but a DMM set to DC volts can be used. This relay disables the power 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. This should turn on power must be "taken apart". displays (U6 10788-PA). Overall the #11,#12,#13 Gottlieb System1 diagnostic tests are pretty lame. MPS-U45 transistors (driver board locations Q1-Q4, Q29). a time, until the offending score display is found. Also be aware that the score displays run at higher voltages (60 volts.) This does not If the board has corrosion, the connectors will have really doesn't help much. Z8 pin 13/12 = Strobe5: both pins pulsing (not used in any system1 games). (Note some System 80/80A/80B games used A-17875 coils, The 74175 chip at Z1 can also be used to test the driver board 51; Next. Power Supply Test, Step Two: Another Version of the Switch Test (Switch Display Ficker Test.) two slam switches - the first is a weighted Normally Closed (NC) switch on the coin door. Many fuses will, but others will not This can cause strange problems and game lockups, or even Gottlieb manangement needed to get some new designers and find a replacement. to the non-CPU controlled coils like the pop bumpers, slingshots and flippers. Interestingly, Gottlieb did make some System1 titles in EM format too, for places to buy these parts. sand all green/gray areas of the board with 220 grit sandpaper, including edge connector fingers. I also noticed IMPORTANT: Before Starting!