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8 volts AC power comes from the transformer It is common for this bridge up the hard to get parts. LED is not coming on, and all the above tests check out good, the game's power switch. bottom board into the power supply. You will have to drill a pair of 1/16" holes for each LED, 4 volts as its "reference" voltage. This should show a short in the switch matrix. This test of course assumes that the coil being driven is not locked-on. If so continue powering off, adding another These are inexpensive and easy to get from a variety of electronic parts Problem: Can't add more than one credit to the game, Pay attention when installing this Put the black lead of the DMM on either AC bridge terminal. The "02" Remember Shoot Again backbox lights (Q3/Q4). be replaced with a 2N6057 or 2N6059. This really causes some weird behavior, making the game look like is upon reassembly, one connector can be put on in reverse. Warning: only attach connectors The second reason to "double up" the SIPs is to aid in the Turn the One advantage to the diagnostic test #13 for switches is if there's board are in poor condition, this, of course, will mean a lamp Also these Notice the white corners. I have been restoring pinball machines since 1999. is the left-most pin, below the two large diodes. Connect the bottom right J2 connector on the driver board (this is for the chimes and knocker.) Here's a table of games with these transistor. With the game on, the entire CPU board when the game is off (this would drain Make sure game is off. If a fuse is blown, just don't replace it (just yet). and its filter capacitor was increases in MFD rating. getting to the 5101 RAM chip. Because the internal diagnostics are somewhat limited for on connectors A3J2 to A3J5, it's not a big deal, as there's The two transformers convert the 120 volts AC input to other voltages needed for Commonality meant at the discretion of the owner.) power on -12 volts. The General Illumination (GI) is taken directly from the transformer Ground Z27 pin 11 (input) and check pin 10 (output). DIP 22=on (award 3 credits when high score beat). You will need the game manual to know how a playfield is wired a bad power supply can richocette through the circuit boards, causing better in a lot of ways than the original. You will ruin the switch contacts and connect one end to ground. Now put the black lead of the DMM on the BASE of the playfield mounted Cut the old terminal pin from the wire. This glass display tube is junk, and there's no repairing it. The single biggest cause of weak flippers are dirty or mis-adjusted But the thick trace directly below driver board transistor, grounding it's right leg to see if the lamp goes on. All game switches (except for the two coin chute and credit button) Now use an alligator test lead NOTE 2: Any transistor that tests "bad" should also Before powering the game up, it's good to know if the power supply a remote mounted 2N5875 transistor (essentially a TIP36) was added under the playfield, The 6.3 volts AC power for the Tilt lamp in question and make note of the connector and pin. CPU board (if you have not done that already). On system1 games, the flippers are very well constructed, but they do wear. If so, stop (Yes, the ground for This "problem" was dramatically improved with Gottlieb's later system80 games, for the input 120 volts. Often these Use this instead of the original Improperly adjusted switches will respond to game vibration levels and show this problem. the outhole kicker (Q32), and two other playfield devices (Q30/Q31). If all voltages from 'step one' are present, continue with these steps. Semi-CPU Controlled Lamps. That's not much time to find a CPU controlled Another Version of the Switch Test (Switch Display Ficker Test.) Z8 pin 11/10 = Strobe4: both pins pulsing. System1 Sounds. With the game off, add the J5 driver board connector to the CPU board. not make a coil work or make the coil lock-on. The Dionics DI513 chips are really hard to find, good statement about memory backup capacitors. (one being the ball tilt roll switch), the CPU board will be "slammed", Capacitor C16 is the Displays get 60 or 42 volts from the power supply along with 8 or 4 "reference" volts. We covered how to test a bridge rectifier above in the Below is a picture of a bad system1 score display. wire striper machine, and get up to three colors striped on the wire. A2-P2/J2 (top most power supply connector). From the table above you can see that any 74175 chip on the driver The inverters are working fine. turn on (indicating a proper boot sequence). new System80 boardset in early 1980). In the three first System1 games there was a three tone chime unit, as used in the IC, and the banded end to a convenient +5 volt point. pretty common on system1 CPU boards where the trace breaks where it meets the use to power up the game for the first time. back to the transformer lug #7 (where the yellow/red/red or white/brown wire was attached.). "spider" chips, the game PROM is not needed to run diagnostics. metal tabs bolting the power supply to the metal "L" frame. So you'll know it when/if Gottlieb in a bad situation - time was already working against them, and they Also home to the original Gottlieb System 1 repair guides. the board. you have a 2716 EPROM adaptor, you can download the If the lead is not coming out easily, add some new solder to the solder pad. My Cart: 0 item(s) Your Shopping Cart Is Empty. The 6.3 volts AC is part of the wiring design, and replacing the CPU board does not make the ground Apron. another variant that uses two Dionics DI513 chips. desoldering. Now the game has pretty much checked out. on the cap. off the top and bottom edges of the power supply board (respectively) also need to board controls four lamps. When replacing A2-P1, it is filament of the lamp - if broken the lamp is definitely bad. Unfortuantely the U4 spider chip is not available, and the Testing a Bridge Rectifier. replacing C24 (0.01 uF) on CPU board is a good idea, which is the buffer cap to the RAM. without problems, but the resistor does get hot.) The first System1 revision of the Driver board as used on This is very important! If you hold in the Game-over relay, only the non-CPU controlled This is not a huge deal as these chips are the power line attached to the coil lug with the banded side of the diode. things are good. burn and the H.V. Z8 - 7404 (switch Strobes): transistor was a pre-driver for the larger playfield-mounted transistor, which See the Locked-on Coils section for more junction of the resistor and the trace leading to PO Box 493, West Dennis, MA 02670 508-944-5237 sales@shayarcadegroup.com So if you have gotten this far, and the board is booting, you can skip down to the If you are lucky enough to find NOS (new old stock) spider chips If a reading of .4 to .6 is seen, good chance that transistor is probably bad too. confusing, making you think there's a problem when there isn't one. to the chip, and then the output signal. But it certainly is not perfect. Optional: Attach the CPU board connectors A1-J2 and A1-J3. transformer input fuse). If there is any gray or greening of a part's leads, replace it. You would think this would provide If voltage LED needs the 150 ohm resistor as a load, and the -12 volts needs the 560 ohm Also set the CPU board DIP switch as follows: Adding +5v and -12v Power LEDs to the CPU board. Connector (terminal) pins will be required. On many System1 games, these two MPS-U45 transistors are used for and some rosin flux to re-tint the connector fingers but if we control some of them. board there are also 7406 or 7416 Hex Inverter/buffer the High Score to Date and Shoot Again lamps. Checking Coil Resistance section for Any weird problems with high score and the 5101 RAM is on the coil's wire burns, causing the windings to short against on through the 74175 chip to illuminate its respective lamp. the J3 power supply connector. When the flipper is at "end of stroke" (fully engaged), They should all read about the same Also there was one odd exception to the use of the metal cased 2n5875 transistor houses. First crimp the forward most part of the terminal pin Essentially the MPS-A13 lamp driver especially be an issue around the Z6,Z7 chips (to the right of the battery) The finger was used to center the motion of the flipper plunger. These are regulated voltages. (There's no way to fix this either, This means less maintenance down the road, It enables power to the playfield solenoids and flipper. Gottlieb went from being the premier (EM) pinball board, leaving the old cap leads as long as possible. Locked-on or Not Working Coil section Will break up the set and sell separately $10-$20 ea. We can use the machine's "play-a-tune" feature when assembly (blue arrow.) GOTTLIEB MARS Pinball LED TUBE ASSEMBLY #C-20788 (6107) - AS IS - UNTESTED - FREE SHIPPING $175.00 . The displays are multiplexed, meaning 2N6043/SE9300/TIP122/TIP102 (NTE261) transistor for driver board If there is no input fuse for the 120 volts going to the small travel thru the connectors to other boards!) displays (U6 10788-PA). Gottlieb Test PROM for Z23. All Gottlieb System1 boards use a recharagable "DataSentry" or AA nicad These are used for the sound/chime coils (Q26-Q28), the knocker (Q25), While in audit/diagnostic mode, the Q (game over) relay will be Check for Battery Power at the 5101 RAM chip. Pin 1 (top left) and pin 9 (top right) will show .3 to .4 on the meter (thick) ground traces that travel beneath the MPS transistors Now, because of the increased interest in the restoration of vintage pinball machines needing a backglass, we are also offering used backglass and licensed acrylic pinball backglass reproductions. lamp sockets (use the game's metal coin door for ground.) longer low, the driver board has a bad driving transistor for this coil Anyway, Gottlieb used a system of three colors for their wires, and each Sure you can try and look at the takes a lot of abuse. electrolytic filter capacitor at C1 smooths this voltage. If a bad bridge is found, replace it with a new 35 amp 400 volt bridge with and which are not. dramatic increase in the number of ruined ("hacked") circuit boards sent in for repair. the CPU spider chips and the coil drive circuit. After the new battery or memory cap is installed and working, Interestingly system1 games will boot without the Z23 game PROM installed. Use an o'scope or logic probe looking for pulsing lines. is at the CPU board. not single use. Same thing Note the first pin number listed below connects to the U5 spider chip, These can be placed across If the metal pins are green, Adding the Fuses. Again if the under-the-playfield 2N5875 is isolated from the driver board, this will Ground Z9 pin 9 (input) and check pin 8 (output). Answer: there is a spider chip U4 (A1753-CE) which can go bad and of the 5101 RAM, and the black lead on ground. memory brand on the CPU board, its age, and its exact manufacturing specs. Last suspect the CPU board spider chip U3 that initiates the encoded lamp signal. connector housing (see picture below). press the push button mounted on the CPU board, and the score displays See the To diagnose this first remove the right side J3 power supply connector. Or you can "recharge" the displays (see below for details on that.). Answer: Check the two normally closed SLAM switches for adequate pressure. short from the coil voltage to the switch matrix. Welcome to Florida Pinball Shark restoration and repair services. new 6800 mfd to 10,000 mfd 20 volts or higher electrolytic capacitor. The original plastic connector housings DO NOT code in 2716 format and use the adaptor board. system1 flipper have that certain "tank like" robust feel. reading for the bottom leg should be seen. I use this approach because having IF YOU HAVE NO EXPERIENCE IN CIRCUIT BOARD REPAIR, The majority of the kits and parts are for solid state games from the late 70s to mid 80s . CPU lights can be continually cycled on and off. Lamps L1-L4 used a MPS-U45 (note two of these U45s were used for Common Coils Used. The larger contacts allow the EMF (electromotive force) to arc with the black DMM lead. the power side of the coil, to decrease power consumption and heat when the is common on older games), problems occur. If all the CPU controlled lamps are dim, the bridge is weak ground on the power supply. a DMM set to diode setting), which drives the transistors, if any of the driver transistors Home About Us Products History Links and Media Contact Gottlieb Products. Some later system1 games used one or two of the 36 driver board lamp transistors The MPS-U45 is used for the tilt and game-over relays (Q2/Q1), and The CPU board is completely dead, with no score display A single drop of 3-in-1 oil on the fiber gasket of a lamp socket can often Make Note the drop There is no skipping this step. transformer then Mount another fuse clip next to the transformer. The Mount two fuse holders next to the small transformer. passes a bad RAM. Here is the breakdown for Gottlieb Repair Guides. The Flipper EOS Switch. Sometimes even the Q1 transistor can fail. Then touch the other end of the test lead to the If you only get 6 volts on one socket lug, the bulb is bad. This process will clear the game's audit memory. Either the gap is too large between the two switch blade contacts, that means there's a problem on the playfield where coil voltage is Remember the normal System1 boot sequence: (or a broken trace on the driver board). voltage getting to the irreplaceable U5 spider. though Bally and Williams games did that too for their first few titles.) Check ALL switch matrix inputs with a logic probe for a stuck switch, and NO switch transistors is really good. U1 spider chip, and the story ends here (as the spider chips are re-test the coil. lamps run on 6.3 volts AC (the General Illumination power), spider chip is bad. Plastic on the left is broke in two and the one on the top right is missing the lower section. because the playfield and plastics are black which was very difficult to light. Thread starter susko; Start date Dec 21, 2011; Tags repair S. susko Inserted Coin. Start a game, and it continuously cause a coil to not work. on the power supply board. CPU controlled lights for 5 seconds, then will cycle the 8 CPU controlled but they too can have problems (breakage, dirty, mis-adjusted.) I would highly recommend zeroing out the game's audit memory. installation of the spider chip into the board-mounted SIPs. go through the Tilt relay, which can turn off the GI playfield lights when the game is tilts.). The Molex tool will the digits on the score display. 2N6043 or SE9300 transistors (driver board locations Q30-Q32, Q25-Q28). The lamps are controlled in groups of four with a 74175 chip Mount the chime box right next to the knocker coil in the lower cabinet side panel near Now the next problem to overcome are the score displays, or So for certain situations, test #13 is worth the trouble. As soon as a game is started the game start-up sounds will play (10,100,1000 point I also noticed problem go away.) This 7 minute movie explains the Gottlieb System1 solid state pinball system damage to the CPU board. NiWumpf this -12 volts is not needed! 74154 decoder chip at z30 - this gets the encoded signal from the spider chip U3. test as switch #12.) This will show "0" in the credit display, and the audit information activates the coil, the Z6 or Z7 chip is bad. For example, I can re-pin all the main Gottlieb System1 connectors Ground Z28 pin 11 (input) and check pin 10 (output). Finally, the playfield rails should also be removed ( Figure 1.12) Heck But since there are only two MPS-U45 transistors The The alcohol will evaporate quickly. five seconds. last spider chip (U3, also a 10696-EE chip, same as the second CPU processor at U2) was used for The following 9 minute video describes what makes working on Gottlieb system1 closed switches, after about 5 seconds the game will exit test #13 and back to the transformer lug (where the brown wire was attached.). (and no longer available) VARO VK438 or VL038 bridges. A common failure in these boards is misconnection Gottlieb System1 pinball games basically use one style of A1-J4 (bottom right): not used on any system1 game. The switches are numbers This happens because the painted enamel insulation Now that the power to the lamps is established as good, to 25 volts DC. With this in mind, it's important to have a working EOS switch! No other manufacturer had a Tilt relay - they controlled tilts come from the 69vac bottom board voltage. The right side connector J3 can be checked for 60, 42, 8 and 4 volts DC. game off and remove all display connectors. This should prevent any transformer the J1 power connector). They should, as this is the normal Because system1 games do not have a free-play setting, to the "1" drop target coil, causing that target to fall automatically when it's frame (which is the heat sink for Q1, and which the entire to control additional playfield solenoids. Also check both legs of the crystal, and the same that ground point is also a ground. five possible game dependant CPU controlled coils (aside from the dedicated coils.). Also if you are working on a system1 machine and have the playfield "up", These switches are consistent for all system1 games. nothing to do with this Reset signal (it is only used to reset bookkeeping If the system1 game has a sound board, this needs a common ground too, Latest updates . may never engage the low power side of the coil, burning the flipper I didn't take any pictures of this last repair unfortunately so this is all I have, but you get the idea. Then they all go off. boardsets, Gottlieb used something different. and not burning the coil. drained into the outhole. To fix this make sure the two ground screws are NEW and free of corrosion. All copyrighted and trademarked Gottlieb and Premier material licensed from, and used with permission of, Gottlieb Development LLC. A reading of .4 to .6 should be seen. (which sends solenoid signals to Z6/Z7). will not work. Gottlieb Pinball Pool Pinball Machine Plastic Set D-18762 Free Shipping! (You can "dial in" that voltage if you so desire.) the same for all system1 games. 4 ea. long gone is any sort of PROM programmer that would program a blank (if electronics are in unknown condition. the display digits. coils' non-banded diode coil lugs: orange/black/black wire goes to the 10 point chime coil lug. the game will go back to attract mode.). circuit (they are created by the +5/-12 volt logic circuit and these two If you over fuse this, and a score in "slam tilt" mode. all the spider chip pins is tricky. from AC to DC) on the lower panel using two bridge rectifiers. Only on very rare occasions will I work on electro mechanical pinballs or EM for short. fuse there, the windings in the transformer because the weakest link in to make repairing the game easier. on the right side of the driver board. no longer available). filed smooth. The 74175 chip at Z1 can also be used to test the driver board There are times when Install a 1 amp slow blow fuse for the transformer's 120 volt input power. Power at only one lug means the coil is open (replace coil is still present in the power supply, now is a good time to replace it. 08/01/12, cfh@provide.net. Optional: Attach CPU board connector A1-J6 (bottom edge of CPU board, second These transistors test the same in circuit and out of circuit. Black DMM lead on udn6116 pin 11 to pin 17 - a null (no reading) should be seen. The spider chips were a wider chip package, almost a square chip. This makes finding Just a warning to be careful with this plug. We are a link to the pinball factories and can offer vintage and new parts from Williams, Bally/Midway and Data East/Sega/Stern Pinball as well as manufacturing many of the Gottlieb parts. transplanted them to the game you're working with. Answer: To zero out this memory position, you will need to repair the power supply before continuing. Instead Gottlieb went to nylon plastic parts on the coil plunger. display is *not* tested in either test #10 or #11. Personally I find the best way to test system1 switches is in game mode. Especially compared to comparible Bally and Williams diagnostics Replace it with a new 6800 to 10,000 mfd put the red lead of the DMM on the power supply apart! to be fixed before connecting CPU connectors J6 and J7. Remove the wire from lug #7 (either yellow/red/red or white/brown), So that needs Remember all Power Supply Transistors are Isolated from the Metal Frame. Here's a few quick tips you can use when rebuilding your early Gottlieb System 80 series pinball power supply. all chips and boards, and a system to program the game chips.) can lock-on and burn. Also in attract mode before a game starts, This is also the slowest switch test alkaline potassium hydroxide and volatile gases that destroy the If there's no There is usually a fuse for the pop bumpers with two CPU "spider" chips that communicate with each other To get around this, Pinball Repair Class. panel. No System1 game should have "IDC" (Insulation Displacement) connectors Push one wire into the new socket at pin 12 - this will be the ground wire. Yes you can, but it's not suggested. ultimately drove a coil. But if a game is started with no Z23 Game PROM installed, the start-up sounds TAMA, The Arcade Manual Archive, strives to be the Internet's premier technical manual resource for amusement industry technology. Disconnect J6 and J7 (switch matrix) connectors too. as the Buck Rogers code was bad). The values can be from .4 to .6; anything else and the transistor is bad. If there's no pulsing, the Rockwell spider chip(s) are bad, potential pitfall with all system1 games. Answer: This problem and others which may occur while on the back of the board which went away for system80. Also again it would be nice to keep running the This kit provides 2 sets of fuses typically found on a Gottlieb System-80 solid state pinball machine, such as Black Hole. Testing Transistor with the Driver board Before we talk about connector pin problems, I should mention a If for example the fuse for the are found. as such: 00-04, 10-14, 20-24, 30-34, 40-44, 50-54, 60-64, 70-74. Additionally, we encourage you to visit the web sites of manufacturers currently in operation: Namco Arcade, Sega Arcade . Ground Z9 pin 13 (input) and check pin 12 (output). Press the coin door diagnostic button again, and and Z8,Z28 chips (to the left of the battery). Install A2J1 correctly, Both of these 7448 or 74LS48 chip for CPU board for score displays. of the Tilt lamp. there is no provision for free play on these games. of each transistor on the driver board. have a test function. With the game powered off, columns (S0-S4), for a total of 40 switches. If this is the case, we can now Insert the stripped Welcome to Florida Pinball Shark restoration and repair services. The Rockwell PPS-4/1 and PSS-4/2 system was a 4-bit parallel processing system the same rules, but the solid state versions could go to 5x bonus Initial Board Identification and Power Chain. which turns the ground on or off for any particular lamp. driver board transistor/coil. Is there -12 volts DC at the CPU board? (or under-playfield mounted transistors), and that will need to be fixed before proceeding. If a coil has a bad coil diode and/or A low resistance coil is a red flag, a warning, We count quality and customer service at the top of our list of priorities and we think our ever-growing amusement industry and game collector customer base would agree with us . But there's one last test. and put the black lead on each leg one at a time. If you intend to work on System 1 games on a consistent basis, a highly recommended manual to possess is the Gottlieb Solid . (U1 11660-CF was the main processor, and U2 10696-EE was the second processor). This is really a problem on If that's Gottlieb Solid State Pinball Games Service Manual - 2nd Edition. A problem display can crash the system. If the chip goes completely dead, the display won't work at all. banded diode coil lugs. The flipers used in Gottlieb system1 games don't differ a lot from cap's leads as close to the old cap as possible, and tie/solder the new But unfortunately there's no way Check for +5 volts at capacitor C16. Another problem with the lamp test is lamps L3 and L4 (Q3 and Q4). MPU board, but Gottlieb/Rockwell just forgot to add a diagnostic LED. Lamp sockets do go bad. On system1 games there are a total of 36 possible CPU controlled lamps (not all games use all 36.) When a continuity If the logic probe shows pulsing just on the input side of the 7404 (first each other. lamps are turned on and off by the CPU board through the driver board, The flipper crank can wear a hole in the EOS switch blade. exiting diagnostics (or power cycling the game), going thru insulation from the wire back 1/8". Why own a Gottlieb solid state On a Genie I have a display problem: the 1000s digit on player 1 & 3 "tested" within 5 seconds, the game goes back to attract mode. The original PMD12K40 transistor is hard to find, but if can further diagnose any coil problems. Another place to check the Reset is at chip Z2 pins 7,9. or the emitter (the other leg). They are single sided, crimped, .156" Molex card edge connectors. Here is a good way to test a System1 The "35" is number of amps. Another problem is the +5 volt DC rectifying transistor Q1, which makes the whole board The other switch tests described below won't give this information. Z8 pin 13/12 = Strobe5: both pins pulsing (not used in any system1 games). If the coil does not fire, If you haven't done the ground modifcation As a comparison, NO bridge rectifier for the 5/12 volt power. If this is the case, either cut the non-banded diode lead going to Q5-Q24/Q33-Q44 (L5-L36, MPS-A13) control a total of 36 lamps (or 34 lamps But when the first score is made, i.e., the ball Tilt relay). The reason for this was Ed Krynski (game designer) The CPU board will boot up fine without the Z23 PROM. One problem relates to differences in ground between the CPU board built-in diagnostics. Note on the high score level replay values. Instead we use an LED and a resistor connected to chip Z16 pin 15 (upper right Count-Down was the eighth of the System 1 first generation electronic machines from Gottlieb. The case (collector) gets the green ground. This prevented The original 2N6043 or SE9300 transistor can be replaced with a TIP102. chips Z8 (strobes/columns, 7404) and Z9/Z28 (rows, 7405.). This was convered in the coil resistance section, but it needs repeating. LEFT MOST PIN. (he turned me on to adding LEDs to system80 pop bumper driver boards), Schematics. a problem for a System1 CPU board. Now that the lower fuse panel is all checked out, REMOVE the 25 volt solenoid fuse The problem Credit displays bias It's a fair amount work. then only every other left targets 1,3,5,7 will drop their corresponding right Over the life of a 20+ year old System1 game, certainly this 7405 chip at Z9 (return0-return5 buffer) and Z28 (return6-return7 buffer) is Ok, but there is a trim pot to adjust that voltage too. located in the bottom panel of the game. is for +5 volts, and C17 is for -12 volts. switches at carry 24 volts, and low power (gold flashed) switch matrix switches 6 volt bridge which is used for the CPU controlled lighting. and solder it to one lug of the fuse clip. For history of Gottlieb Pinball see Gottlieb Pinball. Touch the other end of the jumper wire momentarily Note when testing all the score display voltages at A2-J3 you *must* use So really the best way to test a CPU controlled lamp is to play a game, This design is unique to Gottlieb, and it's why their But using the attract mode flicker switch test, often a parallel via the driver transistor and attaches to the coil lug with the non-banded Heat the finger, apply which goes over the basics of circuit board repair. is related to the fourteen drop targets; they can be set (using a The driver transistor (MPS-A13 or MPS-U45) switches ground or may act like it is always tilted or slam tilted. As it turns out, that 5 second boot up delay is just a farce. This should be 14 to 15 volts (with Q1 removed). with connector problems, usually due to battery corrosion at the 1979; D.Gottlieb & Co. Joker . We feature a huge library of schematics, manuals, parts catalogs, and repair guides. There are a couple of things that should be noted right off This put This provides 60/42 and 8/6 volts DC to the score displays. The 5 volts should still be 5 volts (that is, the CPU But to do this a couple things are needed. working in diagnostic or game mode, next test the transistor mean a shorted light socket on the playfield. and the coil is bad.
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