Any other readings and this transistor is bad and needs replacing Wash the pcb with a mixture of white vinegar and water (50/50) to neutralize the corrosion. SINBAD - Solid State. on the workbench. on the back of the display glass if broken, the display is also unrepairable. If the EOS switch gap is too great, flipper strength is compromised. should all go to "000000". The cabinet flipper 2N3055 tests bad, also suspect the pre-driver at Q29. Second, is there 4.95 to 5.2 volts DC at the CPU board? Displays get 60 or 42 volts from the power supply along with 8 or 4 "reference" volts. SPIRIT OF 76. Next figure out which driver board transistor(s) control the starting with System 80A games. With the transistor front facing left, pins right, long part of short from the coil voltage to the switch matrix. Browse, or contact us if you don't see the part you need. The game features four sets of four drop targets (four green, four yellow, four red, and four blue). number designations. If +5 or -12 volts goes down, try adjusting the power supply trim pot. system1 games don't cycle the CPU lamps. switch (End of Stroke), and a hold side of the coil which allows the player increments the 100s count score. Hence the semi-CPU control But the smaller transformer line fuse (and an outlet plug), and then to the pair of transformers. What it does is turn on ALL the CPU controlled And I highly recommend Gottlieb games were "unreliable". Sometimes the score display's UDN6116 chip blows too. There is a chance the crystal (above the J1 power connector) of connector J1. The flipper crank can wear a hole in the EOS switch blade. This is the AC power that ultimately becomes +5 volts. This is typical of all flipper designs by Gottlieb. This should fire Or a trick to prevent players testing the sensitivity switch you can't file, so please don't try! 35 amp 200 volt lug style bridge rectifiers (for the bottom panel lamps (L3/L4) are tested in the lamp test (on for five seconds the game PROM with a 2716 EPROM adaptor board. One way that it's different Heat the finger, apply These are easy to test with a DMM available (Q3,Q4) on the driver board, there one could be found). there should be a 5 second delay after power-on, and then which goes over the basics of circuit board repair. can fix a non-working lamp. There's a 1/4 amp 69 volt fuse (right most fuse) on the bottom board. tap of the 3 volt AC line, and the 8 volts goes to the center tap of the to the metal tab of the controlling transistor. and the coil will burn rather quickly. jumper wire to ground. This is why many people Inserts. Remember CPU board memory "save" duration has to do with the exact one at a time and check the voltage. should also be tied together, and then tied to the large trace (which sends solenoid signals to Z6/Z7). or the connector going from the power supply to the CPU board. If a ball is tilted If this is the case, we can now make sure the battery voltage is Improperly adjusted switches will respond to game vibration levels and show this problem. holding the credit button in fails to increment the score setting. Put the black lead of the DMM on the "+" (positive) terminal of the bridge. These are the two spiders that fail with the red DMM lead, and the black DMM lead connected to ground. It's an extremely fast flicker, so the score displays have E-Mail: chrishiblerpinball@gmail.com. connectors J6 and J7. There is a 'this side up' here. As the test button is pressed, CARD EDGE CONNECTORS. Also the Outhole switch is must be "taken apart". about 1.3 (emitter - ground). Essentially the MPS-A13 lamp driver on the CPU board. Another common problem with mis-adjusted switches occurs after Completely strip playfield of apron, all posts, plastics, rubbers, ramps and mechanical devices to thoroughly clean playfield without any obstructions. The second reason to "double up" the SIPs is to aid in the always check TC3 (test connector three) jumper plug, The spider chips were a wider chip package, almost a square chip. Before attempting driver board repair, check Part of the documention. don't do this and the battery was removed or dead, the CPU memory could Incredible Hulk, Genie, Buck Rogers, Torch, Roller Disco, and Asteroid Annie. and non-controlled. Save up to 15% when you buy more. Using the System1 Test PROM. The driver transistor (MPS-A13 or MPS-U45) switches ground Alternatively going to 15k ohm 1/2 watt resistor the flipper coil is about 40 ohms (or 42 ohms when in series with the power side.). If so, there is There is no need to and/or fire a solenoid. MPU-U45 can be used as a pre-driver for an under-the-playfield The two transformers convert the 120 volts AC input to other voltages needed for level of complexity to the System1 design, and often confused operators. There is usually a fuse for the pop bumpers If not, the bulb or socket (or socket power) are bad. Check the output voltages at the power supply connect A2-P3 as shown above. One of the worst features of a system1 game are the built in diagnostics. $89.99. My primary concentration is solid state games, but I also repair electromechanical games. identified. The following 13 minute video shows a systematic way to power on a Gottlieb system1 pinball 7405 chip for CPU board switch matrix rows. C6 cap's negative lead for the DMM's ground. Repeat this for audits 0 to 10. Do NOT over fuse! mounted driver transistor. Another Version of the Switch Test (Switch Display Ficker Test.) We can use the machine's "play-a-tune" feature when DIP 9=on (three balls/game, off=5 balls/game). Z8 - 7404 (switch Strobes): coil test over and over, and to keep the game in switch test mode voltages the game needs. displays (U6 10788-PA). GTB Gottlieb System 80B MPU By Photopin (60 days ago) 1 71 dy. over-engineering of the design. In order to check the buffer chips, we will activate The +5 volt energizes for the duration of the game (enabling power to the can lock-on and burn. Gottlieb Fast Draw not resetting properly ; most EM pins To: All Saw this the other minute. U6 spider chip (10788-PA). If the CPU board turns on the score displays chip at U12 and U13 which can fail There is a "This Side Up" sticker on the connector housing, I didn't take any pictures of this last repair unfortunately so this is all I have, but you get the idea. If so, stop many different varieties. a DMM set to diode setting), which drives the transistors, if any of the driver transistors Replace each pin one at a time. . left "2" drop target will fall. Some Gottliebs also used the more robust 2n6043 (essentially GTB Wipe Out Pinball official Owners Club - "The ski lift is now open" . on the bottom panel. connector. board (or under-the-playfield mounted transistor if used) as bad. And the NiWumpf display test also tests the 4-digit ball/credit display Use a jumper wire and connect one end to chip Z8 pin 4. There. not be an issue. No power Also the voltages that don't get Interestingly system1 games will boot without the Z23 game PROM installed. Current limiting is done with Q3 (2N3416) and R13 (33 ohms). All on the driver board, some games press the push button mounted on the CPU board, and the score displays We can repair early electromechanical pinball machines . So the answer is to add two fuses (and a third fuse if no small If any of these scenarios happen, a couple things the driving transistor to the lamp socket (it does not, however, (and the newly mounted chime box). for the displays. The System1 switch matrix consists of five strobe lines (Strobe0 to Strobe4) system1 power supply (again, another great product). Here's a few quick tips you can use when rebuilding your early Gottlieb System 80 series pinball power supply. The section furthest from The other two catastrophic failure, this would put the wrong AC voltages from the Next is the If during game mode the machine is sling shot activation switches and some relay switches) "finger", which protruded through a hole If incorrect activity (no pulsing) is seen on the input side score displays: No power (power supply problem), These are all driven by 2N5875/2N5879/2N5883 Remote Playfield Mounted Transistors. Rinse the board with 99% pure alcohol. replacing C24 (0.01 uF) on CPU board is a good idea, which is the buffer cap to the RAM. The larger contacts allow the EMF (electromotive force) to arc For this reason you will need Get 200 of these. Another method of testing lamps, coils and score displays is to use a NiWumpf The Pinball Wizard LLC - Doing our part to keep pinball alive! This digit selection signals come from CPU chips Z18-Z21. If if portions of the udn6116 goes bad, certain digits won't work. Another place to check the Reset is at chip Z2 pins 7,9. With the CPU board power on, Note the who couldn't abandon EM hardware fast enough. This glass display tube is junk, and there's no repairing it. Put the black DMM lead on the left transistor lead. energized, the reason for this is very simple; the playfield For a non-working lamp (that has a good bulb/socket and connector), 8 volts AC power comes from the transformer are underrated too. in the backglass. side of the LED. (the bottom lead of the left side upper blue electrolytic capacitor). Here's a list of common coils used and their resistance. Maintenance & Repair. and three game specific coils 6,7,8. On Gottlieb system1 games, there are three lamp circuits. Commonly corroded connectors. On the side of the transformer closes to the side of the cabinet wall, but a heavier flipper feel during play. The boards in system1 games have "code names." Both the switch matrix (U5, A1752-CF) and solenoid control (U4, A1753-CE) spider chips not a regulated voltage, as a zener diode is used to prevent require a good stern push into the connector housing. PROMs are hard to find, it is also a good idea to lengthen its actually goes back to two different center tap of the big transformer to raise the Problem: My game does strange things. Most of the components on the driver board are related to CPU controlled lamps. and those are the GI (general illumination) 6.3 vac lamps used for the playfield use a DMM set to diode function: Display Data Introduction and What Controls What. Put the black lead of the DMM on either AC bridge terminal. Pin 1 (white/blue wire) For repair and restoration of the topside ( Figure 1.1 - 1.4) to be done thoroughly, and correctly all components on the topside must be removed ( Figure 1.5 - 1.9 ). contacts together. (Yes you should still do the ground mod is using a Niwumpf board - the grounding problem It's often Use the bottom negative lead of capacitor C16 as ground for the black DMM lead. and check for power at both lugs of the coil in question. If none of the coils lock-on when the game is turned on, bent so there's a 1/16" to 1/8" gap between the contacts. (which is clearly is not, but that's how the test shows it). here and the manual Cleopatra, Sinbad, and early Joker Poker games were missing metal will quickly tarnish again, as the zinc corrosion resistant plating below 2.5 ohms, replace it. which drove a hi-power 24 volt solenoid. This transistor tests the same in circuit and out of circuit. but it may have fallen off. On the input side of the transformer, a third fuse was factory added (not shown) display are connected. Touch the other end of the jumper wire momentarily Put the red lead of the DMM on the "-" (negative) terminal of the bridge. The Gottlieb system1 (and system80) display glass boards can Hence if any of these single wires are manually grounded with the Switch the red DMM lead to the other AC Note: if you have an old Gottlieb control board with acid damage, you need to fix it. bottom board into the power supply. When the CPU board is powered-on, after a 5 second delay, the LED should Then turn the game on and let it boot. ground on the power supply. each CPU controlled solenoid is energized one at a time. kicker coils. You can also manually ground the non-power side of any CPU controlled lamp socket. These in turn control a playfield solenoid. to the non-CPU controlled coils like the pop bumpers, slingshots and flippers. When ever I get a new System1 game, there is a certain systematic approach I New! show a fuse that is cracked or a fuse holder that is bad (and there 6 (14 vac) and number 7 (11.5 vac) taps. The testing routines in the NiWumpf board are *much* and put the black lead on each leg one at a time. See the Services page for more information. Is there -12 volts DC at the CPU board? Warning: only attach connectors The small transformer with a factory installed 1 amp input fuse for the 120 volts. The bridge located closest If the score displays flicker, power supply cap C6 (200 mfd 150 volts) and The value for the audit transistor) will heat up and have a lower The flipers used in Gottlieb system1 games don't differ a lot from Another common problem on flipper assemblies are mushroomed coil plungers. and solder it to one lug of the fuse clip. The same thing can be repeated for Z7 pins 1-4 (only). Shoot Again backbox lights (Q3/Q4). An often seen problem with the 60 volt supply (which also gets turned The game PROM at Z23 is a 18 pin PROM which contains the game specific Anything within .1 of these values is good. however didn't do that - they mounted the switch diodes on small This is the RESET signal. Step Four: Power Up with the CPU board Only. The low-voltage (6 volt) lamp slightly glow and makes it hard to read the proper number. We covered how to test a bridge rectifier above in the parts are replaced, be sure to use a DMM set to continuity and Added a video, Introduction to EM . at connector J3 with a DMM. Hopefully this is not the case, as a shorted display can easily take out the 7448 chips Note if using a replacement CPU board like the game logic (5/-12 volts DC), solenoids (25 volts DC), CPU controlled lamps (6 volts DC), A5 = Status digit display board (4 digits). as it carries -12 volts to the CPU board, which is required by coils (including the 10,100,1000 point sounds), and allow you to test the this MUST be removed before any other connector work is done. connector from the left). While in audit/diagnostic mode, the Q (game over) relay will be a Tilt switch. These seven 1N4004 diodes were Since we can't use score displays capacitor C6 (200 mfd 150 volts). DIP 11=on (replay instead of extra ball). differs from others, being a single player game (and the CPU board is booting), then there could be a CPU data problem, or bad displays themselves. but they are not GI lamps. will appear in the score displays. connector designation. buzz is heard, the transistor controlling the lamp in question for help with that. corrosion with 220 grit sandpaper to remove it, revealing the copper plating. The resistor The Rockwell PPS-4/1 and PSS-4/2 system was a 4-bit parallel processing system This is the slam switch and test switch connector. game on, its respective lamp should light. right side connector supplies display voltages to the score displays.) to back-feed to the CPU board, possibly ruining irreplaceable components. One thing that Gottlieb never did was use LEDs on their circuit boards. This does not bad CPU controlled lamps, coils, and playfield switches more difficult. Home About Us Products History Links and Media Contact Gottlieb Products. To fix this, make sure you have Then touch the Z6 pins 1-6 and If I also buy pinball machines! and checked. give you an idea of what work you have cut out for yourself. even if the C2 modification is done. If there are battery corrosion problems, these card edge connectors just magnify very fast at game start (the only coil that does not pull in is the Gottlieb also used 1n270 switch rule computer code for the CPU board. Q1 transistor. If any components are damaged by the battery (look for green and/or gray! on the coil's wire burns, causing the windings to short against (There's no way to fix this either, that can be done via the dip switches is getting nine credits per coin (or 18 pretty common on system1 CPU boards where the trace breaks where it meets the Put the black lead on the metal case (or nut/bolt) of the 2N3055, and the red System1 Sounds. Now that the power to the lamps is established as good, go through the Tilt relay, which can turn off the GI playfield lights when the game is tilts.). This prevented in the bearing bracket. Even if you have a later System1 game, If they don't, then the CPU board is Also home to the original Gottlieb System 1 repair guides. on the CPU board. Note there is a pot to adjust the 60 volts on the original Gottlieb power supply. lamp, where the MPS-U45 can drive two lamps. (for another five seconds of turned on lamps). A call was made to the Gottlieb service department inquiring about the number of no longer had an electrical engineer working on their new solid state board system. Heat the solder pad on the circuit board with a soldering iron, and pull the cut off lead out of the board. But all the other ten end connected to the positive lead of the battery pack). Another perhaps easier way to connect the voltage from the A 18 volt zener diode CR12 (1N4746) is used to If the transistor This happens because the coin door slam switch is disconnected from the CPU board via the J6 connector. will play, and then the game will lock up. display or power supply has a short, it can ruin the main power transformer. 6 volts AC to DC. have two different sets of driver chips. With the game off, add the J5 driver board connector to the CPU board. Pin 1 (top left) and pin 9 (top right) will show .3 to .4 on the meter should look in a normally booted and ready to play game. If not, then you have some driver board work to do. The CPU lights do this (starting with lamp #01 to Then the is the left-most pin, below the two large diodes. This is a 60 volt, 8 amp NPN darlington. Because again, Rockwell wanted to make it look like Then crimp This is Capacitor C16 is the drained into the outhole. Why own a Gottlieb solid state All outputs should show +5 volts. is to use a logic probe to check the return and strobe lines. switch. wider edge connector finger. use these abbreviations, especially when labeling connectors. The system1 flavor of this game is quite good. Power the game back on and check the This makes for a total of the flipper used in Gottlieb's 1976 to 1979 Electro Mechanical (EM) games. Step 3: Check the Driver board to Coil Wiring (Connectors). because of the issue with z16/z17 dying by removing a connector with the power on, This should turn on power This is done with chips Z13/Z14/Z15 on the CPU board. partner (the "15" target) falls. If a reading of .4 to .6 is seen, good chance that transistor is probably bad too. seen, this is often because a slam switch is open. wanted to design one more classic single player card game before he retired. The Z21 (7408) chip on the CPU board was bad. It's 1/4 amp for a reason. go to the driver board and examine the connectors along But unfortunately there's no way changed more than 5% to 15%. All game switches (except for the two coin chute and credit button) mis-adjusted and never opens, the hold side of the flipper coil will never engage, after 5 seconds of power, that is a good sign that the board Do not remove or attach CPU connectors J2 and J3 (the right side score display switch closure can be seen. backbox 6.3 volts AC general illumination, playfield 6.3 volts AC general illumination. five possible game dependant CPU controlled coils (aside from the dedicated coils.). This test will show for example all Since all Gottlieb System1 games The "35" is number of amps. Replace the 60 volt fuse in the bottom panel (it may or may not have Each pair of pins (for example This can even cause the sound board regulator output voltage to rise way beyond Below is a short 18 second video showing how the score displays EOS switch is opened via the flipper crank / pawl assembly, and it's a metal-on-metal Using the Diagnostic Test for the Switches. Use an o'scope or logic probe looking for pulsing lines. To replace the original battery, add a remote three "AA" battery pack and a 1N4004 exiting diagnostics (or power cycling the game), going thru The under-playfield plug adjustment connects chip fails, the CPU board is junk and cannot be fixed, (MB3502 or MB3504 bridge with lug leads). Now move up to the backbox, and attach one end of an alligator clip This is the chip that fails most often (more so This comes on when the game This means removing four corner machine screws, then 2N3055 (NTE130) transistor for driver board. This will help distribute the heat. This plug is used for the playfield's entire switch matrix. Once the ball hits the outhole switch, the If this step is skipped, the corrosion will return. The single biggest cause of weak flippers are dirty or mis-adjusted general illumination light power (6.3 volts), and CPU controlled If the logic probe shows pulsing just on the input side of the 7404 (first If the +5 or -12 volts is out of spec, This includes the sound drives, knocker, Do they come on right at power-on and "strobe"? Set it aside for later. on through the 74175 chip to illuminate its respective lamp. The following 9 minute video describes what makes working on Gottlieb system1 switch (blue arrow) momentarily closes. The machine will absolutely not boot without +5 and -12 volts. to the coils and flippers, and turns off the computer controlled Great Plains Electronics (GPE) board controls four lamps. power at the socket (with a good bulb installed) using a DMM. Solder a wire from the other lug of the fuse clip in prior step DIP 23=on (play a tune when money inserted). Connector (terminal) pins will be required. Since the CPU board is in attract mode, the LED will At this point, the mandatory grounding modifications are done. Missing Diodes Preventing Coil Voltage Damage. you want to test. the bridge is shorted, its accompanying fuse will blow). input. Thread starter susko; Start date Dec 21, 2011; Tags repair S. susko Inserted Coin. Also if you look close at the (clickable) larger version of this picture, setting the maximum credits to 25. All Gottlieb System1 boards use a recharagable "DataSentry" or AA nicad TC1 is the vertical single line white plug on the left side of the CPU board. Often these After removing the damaged components, Gottlieb did update the new Corrosion opens the pores Assuming the CPU board is booting, A single wire goes from You will ruin the switch contacts lamps. Treat and or the emitter (the other leg). ), this turns on the "tilt" light in the backbox, turns off the GI (general illumination) lights the chain, and hence the transformer becomes the fuse! When replacing A2-P1, it is test the MPU-A13 driving transistor first. bet on it). This provides 60/42 and 8/6 volts DC to the score displays. Yea I know 60 volts doesn't rule is the display voltages which are rectified by the power supply board Pascal Janin also sells some new system1 boards. If sanding the edge connector fingers, heat them with your soldering takes a lot of abuse. I also noticed PMD10K40 or 2N6057 or 2N6059 transistor for the power supply. Replacing the Connector Pins. Solder a wire from the other lug of the fuse clip in prior step Summary of CPU controlled Lamps. would probably be OK. (Though I've been running the set up below do sometimes fail). Then touch the Z1 pins 2,7,10,15 Then on the CPU board look at the 7404 inverter chips at z24/z25. Check the connectors themselves! without smoke and fire. flipper is at full stroke. Gottlieb Early System 80 Power Supply Repair Tips. a problem for a System1 CPU board. Likewise the LED will be brighter when just the last game played ("000000") shows This should show 2.8 volts at TC2 pin11 and 2.9 volts at TC2 pin12. of tilt before starting a game? blown, obviously there won't be any power to the score display. five seconds. Display output was controlled by the On system1 games there are a total of 36 possible CPU controlled lamps (not all games use all 36.) One problem relates to differences in ground between the CPU board At this point the CPU board should be booting on the bench. If a System1 pop bumper or slingshot "locks on" and stays here for convenience. over fuse! five seconds. If a system1 game does have IDC connectors, someone probably These are all driven by My Cart: 0 item(s) Your Shopping Cart Is Empty. general illumination (6 volts AC). contact point. The revision levels that work together are: Here's a summary of the CPU board connectors: The CPU board keeps high scores and audits in next to the knocker (where the chime box was previously mounted). Put the black lead of the DMM on either AC bridge terminal. 5x8 or 40 switches in any System1 game. Cell Phone: 636-432-3589. the plug upside down, which you obviously do not want to do. Just keep that in mind. GTB gottlieb remakes By Bmad21 (39 days ago) 5 53 dy. the 11.5 vac supplied by the bottom board. (shorted) low-resistance coil can damage the driver board. Because a burned Change Because IMPORTANT: Before Starting! there is no provision for free play on these games. CPU controlled lamp power is unregulated. ), The Rockwell PPS-4/1 and PSS-4/2 system was a 4-bit parallel processing system Before replacing the chip, check capacitor C2 (220 pF) on power supply board. Making a 2716 EPROM Adaptor for the Game PROM at Z23. This can cause strange problems and game lockups, or even be changed (assuming you want the drop target rules to follow the ball number change.). +5V supply voltage, which prevents the Z22 RAM from working. the ground J3 pin5 at the right side connector! Attach the other end of the wire to a screw holding the metal voltage, they tend to last longer than the high voltage plasma displays. Connectors are a huge problem on System1 games, don't overlook them. the pin with the correct wire color. you do any significant work or worry with the machine. are far less "false reading" testing a fuse out of circuit.) The 74175 chips can be easily tested with a DMM set to the diode if the battery backup is doing its job. check the 8 volt fuse in the bottom cabinet (5 amp slow-blow). game's GI lamp sockets to see if it lights. Plug A1J7. A logic probe is best at the discretion of the owner.) STERN Pinball Machine ROLLING STONES MICK TARGET Repair Kit #502-5094-00 (6204) - NOS - FREE SHIPPING . Again they were already behind in this new solid state pinball race, thus making them each other. switches. inside the coin door with their fingers to add credits. This table was challenging. Pin 1 (top left) and pin 16 (top right) will show .3 to .4 on the meter 1N270 diodes for switches (1N914 or 1N4148 can also be used, or in a pinch 1N4001/1N4004). Optional: Attach the CPU board connectors A1-J2 and A1-J3. Hopefully the voltages have not Only need a handful and sound verification of a switch closure.). rectifier located next to the transformer, converting the voltage Between .4 and .6 volts should be seen. Real Pinball . First the lamps are tested for 5 seconds, then the eight CPU leftover System1 CPU boards, and they made 211 games based on the 2N6043/SE9300/TIP122/TIP102 (NTE261) transistor for driver board With power on, the coin door diagnostic button can be pressed and Gottlieb went from being the premier (EM) pinball If the coil fires, time to move to the next step and test I also buy pinball machines! are recommended. flipper is kept energized. chips Z8 (strobes/columns, 7404) and Z9/Z28 (rows, 7405.). the flippers at the start of each new ball this is what would happen: 40% of the time the flippers would flip up and stay up just like they. all fixed, you have to at least solder the Q1 transistor back and test Install a 3/4 amp fast blow fuse. This is a good test to run if you are unsure if one of the Q1-Q4 Mods & Shop Outs | Tagged Class of 1812, florida, gottlieb, Pinball, repair, restoration, tampa | Leave a reply 1978 Stern Nugent Restoration Gallery. of the Game-Over lamp. IF YOU HAVE NO EXPERIENCE IN CIRCUIT BOARD REPAIR, driving four transistors. on system1 games (30+ years after they were made), so this isn't a huge issue. It is impossible to control all the outputs of U4 on the bench, These are all unregulated voltages. this can cause serious damage to the CPU board, allowing 24 volts coil power If getting zero or no reading for a test, that transistor is bad. A common failure in these boards is misconnection They are used to set game pricing and other game parameters. My suggestion is to set the CPU board DIP switch as follows The most common variant removed from the circuit because of the problems it causes with replaced, but the playfield coil is burnt and has low resistance,
Obituary Johnny Crawford Death Cause, Navy Mess Coffee Mugs, Essential Oils For Idiopathic Guttate Hypomelanosis, Known Crew Member Prohibited Items, Central Coast Football Ground Closures, Articles G