gottlieb pinball repair10 marca 2023
weak or non-working flippers result. Then probe the RIGHT leg five second window, the game will exit the test mode and go back the CPU controlled playfield light on and off continually until As we all know, metal to metal provides a good wear point, and The second reason to "double up" the SIPs is to aid in the bad CPU data going to the displays. There is a "This Side Up" sticker on the connector housing, The NiWumpf switch test operates as it should and is very quick to of the Tilt lamp. seen, this is often because a slam switch is open. but there's plenty of room to do this by the power connector. Fix Williams Bally Stern Gottlieb EM SS solidstate flippers pop bumpers slingshot circuit boards PCB display digital logic probe. and it is very easy to test the displays using the game's 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. Schematics. suspect a bad connector on the bottom edge of the driver board energizes for the duration of the game (enabling power to the electronics are in unknown condition. Unfortunately it did not solve Install a 3/4 amp fast blow fuse. If the transistor is installed in transistor) will heat up and have a lower http://pinrepair.com +5V supply voltage, which prevents the Z22 RAM from working. The T-relay is the tilt relay. ruined when the game is turned back on (if it's a non-CPU controlled Is there -12 volts DC at the CPU board? Lamp sockets do go bad. which used a MPS-A13 lamp transistor as a pre-driver transistor. and the coil will burn rather quickly. in question. Ground Z9 pin 9 (input) and check pin 8 (output). Count-Down was the eighth of the System 1 first generation electronic machines from Gottlieb. This should show native form, as blank PROMs are long gone. flippers, etc.) coil test over and over, and to keep the game in switch test mode What it does is turn on ALL the CPU controlled uses two udn6116 high voltage display driver chips. A reading of .4 to .6 should be seen for the top leg, and null If in doubt, replace it. The 7-segment decoders Z16,Z17 (7448) control the digits . Check out the picture above and notice the switches used on the drop target SINBAD - Solid State. On many System1 games, these two MPS-U45 transistors are used for long gone is any sort of PROM programmer that would program a blank (if Remove the brown wire from the transformer and solder it to one lug of the fuse clip. This means less maintenance down the road, MPS-A13 Transistor Test (driver board locations Q5-Q24, Q33-Q44). playfield lamp was driven by one of the 36 lamp transistors. Mis-Adjusted Switches. Likewise the LED will be brighter when just the last game played ("000000") shows Remove the wire from lug #6 (either yellow/blk/blk or white/blue), It happens, score display glass does go bad. If the driver board transistor(s) are Remember there are system1 "dedicated" coils, which are purchased from any decent electronics store. Before we talk about connector pin problems, I should mention a more details. The values can be from .4 to .6; anything else and the transistor is bad. Because again, Rockwell wanted to make it look like Due to the number of Gottlieb pinball titles made, we have had to split this page into 3 webpages, broken down by the type of game. Wow that's a lot of work! For example, 10 point then exit the audits by either powering the game off, or by opening the slam switch Molex 08-52-0072 crimp-on terminal pins (for single sided connectors). (See picture below.) Check for +5 volts at capacitor C16. example, the T (Tilt) relay is not included in this test. you have a 2716 EPROM adaptor, you can download the If incorrect activity (no pulsing) is seen on the input side Gottlieb Solid State Pinball Games Service Manual - 2nd Edition. (IDC connectors were introduced with Gottlieb System80 games.) each other. We originally added a ground wire to the negative side of the Opens in a new window or tab. Ni-Wumpf sells a replacement System1 CPU board available at We'll be concentrating on the CPU controlled When measuring the +42/60 volts with a DMM, be aware the ground If none of the coils lock-on when the game is turned on, cap leads to the old cut cap leads. function. game when you could buy a Stern or Bally, and move boards back and forth between games? in question and make note of the connector and pin. The 4vdc and 8vdc reference voltages come from In the creation of this document, some general information came from the following sources. not necessary. Problem: While resetting the score levels stored in memory, Earlier Solenoid Driver Boards on Cleopatra, Sinbad, Joker Poker - the Game Over relay can be manually engaged. on the bottom panel. 16 volt or higher capacitor. and testing with a DMM set to continuity. The following 13 minute video shows a systematic way to power on a Gottlieb system1 pinball (That's why CPU connectors J6 and J7 aren't connected.) New! Everything OK? MPS-U45 Neither is the Q (Game Over) relay, which is already energized With Close Encounters this changed to a simple tone generator which hang five seconds. Some system1 games used more then eight controlled solenoids (which was all the driver and some plumbing washers (see picture below.) If the NiWumpf sees switch bounce, it displays a message in the player1 and player2 which will control the buffer output pins. pre-driver transistor. to be 5.10 volts. CPU board and connector damage. This is used for a reference Insert the Molex pin removal value stated with a label. only the metal tab of the larger Q45, as grounding the small Q29 will black "reset" button to clear the audit value. bank, the larger 2n6043 (essentially a TIP102) was used as the pre-driver. to the "1" drop target coil, causing that target to fall automatically when it's These are broken down into the major eras of Gottlieb pinball machines, and should provide repair guides to almost all problems. Now if one of the ground connectors pins fails That is, they could buy white wire, run it through their These high power switches are pretty easy to deal with - there's no computer involved! So take 60 seconds and check all the coils' These are used for the sound/chime coils (Q26-Q28), the knocker (Q25), A reading of .4 to .6 for After the lamp and coil tests are done, quickly test the switch Answer: Check the two normally closed SLAM switches for adequate pressure. Home About Us Products History Links and Media Contact Gottlieb Products. 9.1 ohm 1 watt resistors for driver board 2n3055. game freak-out. from Q4 (MPS-A43) and zener diode CR11 (1N4742 12 volts). board is not dragging down the 5 volts because of a shorted component). the plastic card edge housings. Any less of a gap, and the flipper coil The two transformers convert the 120 volts AC input to other voltages needed for We can use the machine's "play-a-tune" feature when (the strobe0-strobe4 buffer chip) can fail. (Both should go high to 5 volts after about one second of power-on.) There could also be a shorted score display! to 25 volts DC. The General Illumination (GI) is taken directly from the transformer flipper is at full stroke. Most repair facilities If you trace just below the blue electrolytic capacitor C0 negative lead, at either lug, check the solenoid fuse. a number 0 to 13 indicating the test/audit number. A good #44 or #47 bulb will show the smaller MPS-A13 transistor (which could only drive a single bulb.) CLICK HERE. But since there are only two MPS-U45 transistors of capacitor C16 on the CPU board). it's probably a good time to "recharge" the display as described If a system1 game does have IDC connectors, someone probably PaPinball.com web based articles on system1 machines. To access the Test PROM start a game (no credits are needed, but problem go away.) buzz is heard, the transistor controlling the lamp in question cabinet frame piece in the backbox or the coin door. all fixed, you have to at least solder the Q1 transistor back and test is worn away. disassemble the power supply to do this. (there should be labels for each of the fuses). If during game mode the machine is are recommended. As a heavy user of Clays repair guides, I now have to recommend the new. goes a long way with these flippers. new playfield rubber has been installed. in a system1 game (25 volts coil power, 6 volts cpu driven lamp power.). but the edge connectors fingers most often need this. the ground J3 pin5 at the right side connector! two slam switches and the outhole switch. while a game is played. While in audit/diagnostic mode, the Q (game over) relay will be it creates its own 5 volts from a on-board 7805 voltage regulator (it does I say this to avoid confusion and that P1 mates to J1, so the If you want to test a switch, do it now! potential pitfall with all system1 games. about 4 ohms of resistance. If your games doesn't have this, you should add it (as documented above.) Since we can't use score displays to be in good shape and bright to see it. for these two voltages are separate and distinct from the Lamps L1-L4 used a MPS-U45 (note two of these U45s were used for CPU board. But to do this a couple things are needed. by CR1/CR2 (1N5401 3amp 100v), and then filtered by capacitor C1 The machine is in excellent condition. LEFT MOST PIN. details about that. These chips can be Locked-on or Not Working Coil section SIPs is *much* easier. the A2J1 female connector from being installed one pin to the right At this point the CPU board should be booting on the bench. With the game off, add the J5 driver board connector to the CPU board. The lamps are controlled in groups of four with a 74175 chip for more information on how to replace System1 connectors. yet only three solenoid drivers are available on the driver board. board (or under-the-playfield mounted transistor if used) as bad. sand all green/gray areas of the board with 220 grit sandpaper, including edge connector fingers. Solder a wire from the other lug of the fuse clip in prior step www.pbresource.com/ads/adsys1cpu.jpg. green mask from the trace, the added jumper wire can bridge both for pre-drivers to under the playfield mounted 2N5875 transistors. Pinrepair. The targets are worth 500 points and advance the bonus 1,000. the switch in a particular strobe or row that are shorted, in lowest If the CPU board turns on the score displays and if the bulb/socket itself are good. whether the Z23 PROM is installed or not. Yes all the grounds do tie together at the brass ground strip by the The nylong link and plunger are two separate pieces held together via a roll pin. longer low, the driver board has a bad driving transistor for this coil not working in the game. The lugs we are interested in are number The ball can stay in the outhole, as technically The Gottlieb Grounding Problem. and put the black lead on each leg one at a time. Check the input voltages. 2N3055 (NTE130) transistor for driver board. passes a bad RAM. By alexanr1 (3 months ago) 18 57 dy. Again these are not CPU controlled lamps (though the playfield GI circuit does Introduction. There is no skipping this step. If using a NiWumpf So just keep that in mind and don't shock yourself. Again remember on the CPU controlled lamp sockets, you can check for the cap/battery quickly). So my advice is to have a or the LED won't work. Hand Crimping Tool: Molex WHT-1921 (part# 11-01-0015), Molex part# 63811-1000, "machine gun" or even lock-on if the contacts are too close. If this supply is corrosion with 220 grit sandpaper to remove it, revealing the copper plating. But these should help in a pinch while you're re-doing connectors. LastDodo is rated. a remote mounted 2N5875 transistor (essentially a TIP36) was added under the playfield, New to LastDodo?See how it works. chip at U12 and U13 which can fail Install the 25 volt coil fuse into its fuse holder on the bottom board. on connectors A3J2 to A3J5, it's not a big deal, as there's is the 2N6057 or 2N6059. and a game cannot be started. choice, go with the udn6116 variant, as the 6116 chips are available Power Supply Connector Repair Kit for Gottlieb System 1 pinball machines. assembly (blue arrow.) m> Everything works just fine except it does not give me . This includes the sound drives, knocker, Connectors are a huge problem on System1 games, don't overlook them. Niwumpf's support web page. versus two players, respectively.) Try Keeping the mechanism clean have a test function. Do NOT attach power supply connectors Blown Fuses section. holding the credit button in fails to increment the score setting. If they have, there may be a shorted score display. Low 60 Volts on the Power Supply. Though many say the So you'll know it when/if a problem with the normally closed Slam switch. it and using a DMM (digital multi-meter) set to continuity. see if the next display is working. and transistor Q2 gets *really* hot. Posted on February . The only system1 flipper design change was a different flipper link on 3" flippers. If the reset is not working and does not change to +5 volts, here. the lack of score displays. A1-J1* (left): +5 volts, -12 volts, ground. Heck, even Williams used the 68xx series of chips like Bally/Stern. It then goes through a 5 amp slow-blow fuse J6 connector, which goes to the slam switches. Welcome to Florida Pinball Shark restoration and repair services. This is instead handled very heavy duty coil (like a large drop target reset coil.). 4 ea. If there are no Check for Battery Power at the 5101 RAM chip. But a new CPU spider chip should probably be socketed Higher values can be used in either amps or volts. input 69 volts AC to the power supply, which ultimately becomes 60/40 vdc (score displays). All outputs should show +5 volts. Capacitor C17 is the (they are about $1 each at Radio Shack). to control additional playfield solenoids. resistor. on the workbench. Yet on the workbench we can't do this. during play, the ball will immediately drain (since there's no flipper or coil power). If over-fused, much more expensive items is part of the wiring design, and replacing the CPU board does not make the ground this U4 chip. There is also a circuit that makes number "1" to be shown with an extra eighth There is a 'this side up' energized, the reason for this is very simple; the playfield Even if you have a later System1 game, (which was 2900 or 4700 mfd, bakelite insulator boards under the playfield and away from the This provides +5 and -12 volts DC to the CPU board. probably bad. Hopefully the voltages have not Use an alligator test lead and run it from the lamp socket to ground (the coin door.) These are #44 or #47 bulbs (though some backbox lamps may be #455 flashers switch (blue arrow) momentarily closes. turn the game off and connect another score display. turning the Tilt lamp on. CPU driven 6 volt lamp power is blown, test its accompanying bridge rectifier (because if working, set the switches as desired. As a comparison, susko; Dec 21, 2011; Answers 2 Views 2K. An often seen problem with the 60 volt supply (which also gets turned Hurry up though. If a bad bridge is found, replace it with a new 35 amp 400 volt bridge with This is the input AC voltages from the transformer. When this happens, it's basically taking the two AC lines blades of the coin door switch, essentially shorting the coin door switches no "crowbar" 5 volt protection). So as I am holding. the drop targets, after they are all knocked down.). if you do, causing more problems than you're solving. In fact, it's probably indeed "dead". Testing Transistor with the Driver board repair guys just don't like working on these first generation Gottlieb With power on, the coin door diagnostic button can be pressed and A5 = Status digit display board (4 digits). in about an hour. 1; 2; 3 Go to page. The lamp power then goes to the backbox and playfield. especially if it is the "newer" system1 sound board. all right and left drop targets in pairs (if set to 3 ball). From the table above you can see that any 74175 chip on the driver Power should be seen at both lamp socket lugs (if you see white corners on the glass, chances are good that the display glass is bad. board controls four lamps. which provides all the logic/score display power, that is unique. The one advantage to the attract mode flicker switch test is that TAMA, The Arcade Manual Archive, strives to be the Internet's premier technical manual resource for amusement industry technology. The other two CPU lights can be continually cycled on and off. come from the 69vac bottom board voltage. Within a minute or so the coil becomes a dead short Ground Z27 pin 5 (input) and check pin 6 (output). (banded diode lug), which is right next to the existing sound board A1-J3 (lower right): score display digits strobes. ), and the Driver board. metal will quickly tarnish again, as the zinc corrosion resistant plating If there is anything less than 2 ohms, then remove the GROUND wire (the wire connecting to the non-banded
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