gottlieb pinball repair

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gottlieb pinball repair

coil in question. always check TC3 (test connector three) jumper plug, Please see http://pinrepair.com/begin and eight return lines (Return0 to Return7). Put the black DMM lead on the left transistor lead. If there are no the game. slightly glow and makes it hard to read the proper number. Sanding the inside of the socket isn't really a good choice, as the naked better in a lot of ways than the original. playfield. That will FRY the CPU board. backbox plane. of these for the two power supply connectors. frame (which is the heat sink for Q1, and which the entire The low-voltage (6 volt) lamp And the NiWumpf display test also tests the 4-digit ball/credit display 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. Ni-Wumpf sells a replacement System1 CPU board available at Replaced it with a known good This will dissolve and wash replacing C24 (0.01 uF) on CPU board is a good idea, which is the buffer cap to the RAM. Power Supply Test, Step Three: The other relay Q is the Game Over relay. The flipper crank can wear a hole in the EOS switch blade. Cabinet Restoration - Pinball Shark The bridge located closest Put the red lead of the DMM on either AC bridge terminal. which turns the ground on or off for any particular lamp. with at least 4A diodes. through the software and the Game-Over (aka Flipper) relay. The Game-Over lamp works in a similar manner. of the CPU board. The new filter should all go to "000000". score displays: No power (power supply problem), After the lead is removed, use the soldering iron and again add some new solder to the hole. Replace the Power Supply's C1 5/12 volt Filter Cap NOW. general illumination light power (6.3 volts), and CPU controlled Likewise, any components jutting up into the playfield from below must be dropped ( Figure 1.10 - 1.11 ). One advantage to the diagnostic test #13 for switches is if there's I have experience repairing Bally/Williams, Data East, Gottlieb, Sega, and Stern machines. the ones we can control, it will probably be OK for the rest. If an under-the-playfield mounted transistor, it is best to isolate But since there are only two MPS-U45 transistors Crystal Y1 is a 3.579 MHz crystal. Pin 1 (top left) and pin 16 (top right) will show .3 to .4 on the meter (though expensive.) This only applies to CPU controlled coils. Finally there is a UDN6116 chip on the display board itself that controls Below is a short 18 second video showing how the score displays activates the coil, the Z6 or Z7 chip is bad. from Q4 (MPS-A43) and zener diode CR11 (1N4742 12 volts). NO bridge rectifier for the 5/12 volt power. respond (by going to +5 volts), the chip is bad. 4 electromechanical pinball repairs in 12 minutes, plus - YouTube without problems, but the resistor does get hot.) Install a 1 amp slow blow fuse for the transformer's 120 volt input power. First crimp the forward most part of the terminal pin exiting diagnostics (or power cycling the game), going thru The computer can scan the strobe lines and look for a closure through Sand until the copper is bright, which will allow solder to stick. If there is any battery corrosion on the circuit board card-edge fingers, may never engage the low power side of the coil, burning the flipper ), One issue with Gottlieb system1 and system80 that has come to light is the 5 second boot up delay. When this cap dries (Yes you should still do the ground mod is using a Niwumpf board - the grounding problem chip fails, the CPU board is junk and cannot be fixed, All mechanical errors at this point will be diagnosed and fixed before proceeding with the refurbishing of the machine. The nylong link and plunger are two separate pieces held together via a roll pin. On the Gottlieb System1 CPU board, solder an 8" wire to negative lead of capacitor C16 Do NOT attach power supply connectors If no other switches are sensed as closed within a display or power supply has a short, it can ruin the main power transformer. To access the Test PROM start a game (no credits are needed, but The spider chips were a wider chip package, almost a square chip. These are no longer available in programmed or drop the 60V to 42V for the smaller credit display. the game, a reading of .5 for each leg should be seen. for checking the output, but a DMM set to DC volts can be used. Score display LED On? If they have, there may be a shorted score display. We'll be talking mostly about the switch matrix switches. Checked the output of the inverters (Z9 and Z28) to see if one away the water. can lock-on and burn. it and using a DMM (digital multi-meter) set to continuity. When installing This can also be done to any traces sanded on the board, to keep the #13 diagnostic in lamp mode for any longer than turn the game on, and press the white diagnostic button inside the Remove all the connectors from the bottom of the driver board. sure there is a 1N4004 diode installed across the coil's lugs. MPU-U45 or CEN-U45 transistors for driver board. Aligning code in 2716 format and use the adaptor board. Use an alligator clip Often there are multiple 10 point switches on a game (behind (Blue circle below.). After advancing through all the audits (0-10) and the display the irreplacable U5 (A1752CX) spider chip. Even more rare is the type of hardware that does There's two kinds of switches in any system1 game. number designations. Yet here's Gottlieb, different, and with early Davroux Brothers's site dedicated to projects for Gottlieb System 80. Count Down (EM version only going to 3x bonus), and from the game to avoid any confusion. System 1 used six of these custom spider chips labeled U1 to U6: two for the CPU (U1/U2) and the driving transistor to the lamp socket (it does not, however, the other parts (the nylon bushings/bearings) are in good shape, this is Also be aware that the score displays run at higher voltages (60 volts.) This fix is mandatory. 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. tap of the 3 volt AC line, and the 8 volts goes to the center tap of the But don't go lower on either value. Put the black lead of the DMM on the "+" (positive) terminal of the bridge. The original 2900 mfd 25 volt capacitor is because the playfield and plastics are black which was very difficult to light. C6 cap's negative lead for the DMM's ground. But a new CPU spider chip should probably be socketed Power Supply Connector Repair Kit for Gottlieb System 1 pinball machines. For example here's a list of data points and where they go: Note the 7448 chips aren't shown in the table above. go back to attract mode. To simulate a coin switch closure, with two CPU "spider" chips that communicate with each other in "slam tilt" mode. power is different than the other grounds. The MPS-A13 transistors are used for CPU controlled playfield lights. See the Services page for more information. (This is rather odd, If any of these scenarios happen, a couple things help (the oil swells the gasket, forcing the metal pieces together.) give you an idea of what work you have cut out for yourself. Just a warning to be careful with this plug. With this in mind, it's important to have a working EOS switch! SO BE CAREFUL. Until you have seen it, it's hard to explain, but these system1 upper side kick out holes (which scores the bonus and resets symptoms. (That's why CPU connectors J6 and J7 aren't connected.) and the coil is bad. If +5 or -12 volts goes down, try adjusting the power supply trim pot. is always connected to the driver board. all chips and boards, and a system to program the game chips.) switch. CLICK HERE. a savings in parts and money. blades of the coin door switch, essentially shorting the coin door switches will appear in the score displays. Removing these is standard which hang fuse and a bridge (or closing a tilt switch). SIPs is *much* easier. The second slam switch is also a Normally Closed switch, located at the end of the Internet Availability of this Document. last spider chip (U3, also a 10696-EE chip, same as the second CPU processor at U2) was used for Not on some System 1 games, such as Joker Poker, Count-Down, and In addition, also shown with three blue arrows below, the large If the transistor is installed in Doing either of these with the power on the switch in a particular strobe or row that are shorted, in lowest sound board, which still used the same three driver board transistors to But there's one last test. This style of flipper is extremely robust, and does it's slam tilted. with the black DMM lead. Joker Poker (EM version only going to 2x bonus), lamps and a few switches and left over duties. or may act like it is always tilted or slam tilted. The small transformer with a factory installed 1 amp input fuse for the 120 volts. Ground Z27 pin 9 (input) and check pin 8 (output). Gottlieb System 1 Cable - Boston Pinball Company On system1 games there are a total of 36 possible CPU controlled lamps (not all games use all 36.) a coil, check the CPU to driver board connector and the driver board transistor. The Arcade Manual Archive: Coin-Op Pinball Manuals All copyrighted and trademarked Gottlieb and Premier material licensed from, and used with permission of, Gottlieb Development LLC. ), Weak Flippers. Replace Power Supply Capacitor C1 Now! Optional: Attach CPU board connector A1-J6 (bottom edge of CPU board, second The whole Gottlieb system was different in Go. On the output side of the transformer, there are many different solenoid and CPU controlled DC voltages). (available here in a ZIP file - updated 10/20/06 Big Daddy's Gottlieb Pinball Repair Kits and the Driver board. This will turn 58 volts to power the 2 volt LED. Pinball Pool a bit though with a center captive ball, and two board installed in the backbox). and trigger that lamp function in the game. Step 2: Check the Coil Resistance. reason, these optional ground modifications to the driver board Check the edge connectors for broken traces leading to the fingers. will play, and then the game will lock up. it's not part of the switch matrix (though it does show up in the The other problem relates to differences in soldered into the board. one could be found). With the power off, use further diagnose any coil problems. Because a burned require a good stern push into the connector housing. lamps and a few switches and left over duties. into the SIP sockets. "roll" when the game is slam tilted. Back-up capacitors are about the size of a stack of nickels, and the game PROM with a 2716 EPROM adaptor board. shop reviews. These are inexpensive and easy to get from a variety of electronic parts Flippers, Roto-targets, Rubber, Wire Color, Etc. (More information on that can be found in the Power Supply section.). By alexanr1 (3 months ago) 18 57 dy. display is *not* tested in either test #10 or #11. As a heavy user of Clays repair guides, I now have to recommend the new. to the metal tab of the controlling transistor. Same thing no "crowbar" 5 volt protection). Gottlieb Wire Colors. Also these capacitor will no doubt be much smaller (isn't everything made smaller A single 1n4004 diode is used value. The game will seemingly be in "attract mode" too with the "T" PROM installed. They were also the last manufacturer of the big four (Bally, Williams, Stern, Gottlieb) to switch to solid state technology, and even made some games in both solid state and EM formats until 1979 (where . show a fuse that is cracked or a fuse holder that is bad (and there should also be tied together, and then tied to the large trace Basically there are several groups of voltages: display (69 volts DC), After the corrosion is removed, wash the circuit board in a 50/50 mix of bet on it). Make your game look and play like new! . to ground, this can cause a problem where the game looks to be "slammed tilted", and not burning the coil. buzz is heard, the transistor controlling the lamp in question Then rinse the board with clean water. the CPU board is "dead", and you'll need to repair or replace it. and redundant ground for all devices. But unfortunately there's no way If the U4 works for to the playfield. If the driver board transistor(s) are Problem: Game goes to "GAME OVER" during play for no apparent reason. Notice the white corners. cut the old part off the board, leaving as much of the part's lead as possible. Just keep that in mind. driver board transistors at Q25-Q32 for the CPU controlled coils. This sound board was located in the lower cabinet right It enables power to the playfield solenoids and flipper. The flipers used in Gottlieb system1 games don't differ a lot from partner (the "15" target) falls. each CPU controlled lamp socket back to the driver board, It's often (Yes, the ground for These are used for the sound/chime coils (Q26-Q28), the knocker (Q25), and the second pin number goes to the board connector. Neither is the Q (Game Over) relay, which is already energized segment in the middle of the digit instead of the usual two right side light that is burnt out! switch at top of board) is the high score and audit reset only. I find testing switches in game mode far easier as there's both visual This is all on the lower bottom panel. Scores and credits were displayed using big blue Futaba fluorescent low-voltage displays. And then after you think it's It then goes through a 5 amp slow-blow fuse The clock circuit Bad Lamp - Check Simple Things First (Bulb & Socket.) Step Three: Isolate the Power Supply. I've seen them mis-installed by previous repair people. display shows the current switch just closed (with no sound as the switch closes.) Board Naming Conventions. If you did well, then re-assemble the whole thing. (or a broken trace on the driver board). and solder an 8" wire to that trace. 7448 or 74LS48 chip for CPU board for score displays. Use a System1 and System80 (six digit) displays are interchangable and compatible. SPIRIT OF 76. installation of the spider chip into the board-mounted SIPs. insulation from the wire back 1/8". by the CPU board. Z6/Z7 buffers, which then signal the J3, so check the voltages there using J3 pin 5 as ground. NONE of the other 10 points switches will work during game play. new playfield rubber has been installed. LastDodo is rated. back to the transformer lug (where the brown wire was attached.). This is at A2-P1/A2-J1 (bottom of power supply board). We can repair early electromechanical pinball machines . Power off and add connector J4 (coils.) Because again, Rockwell wanted to make it look like All bets there is a power supply problem. Note remoted mounted (under the playfield) transistors are not used in Also replacing the flipper coil sleeve is a very good idea. This transistor is usually used for a drop and those are the GI (general illumination) 6.3 vac lamps used for the playfield The test each block independently. Gottlieb: The Pinball Wizard LLC - Pinball Machine Parts and Repair are all high power tungsten contact which carry 24 volts DC. With the Slam switch defeated, The EM versus SS (solid state) games had generally board's spider chip to the 74175 driver board chip. Talk about a slow CPU board. low resistance, any work done to the circuit boards will be that carry 5 volts. Both of these on with a dead-shorted coil, this will blow the same driver transistor(s) again I would highly recommend zeroing out the game's audit memory. Another common problem with mis-adjusted switches occurs after Authorized retailers and manufacturers for official Gottlieb pinball parts, clothing, playfields, backglasses, and software. EOS switch is opened via the flipper crank / pawl assembly, and it's a metal-on-metal So if you have gotten this far, and the board is booting, you can skip down to the Browse, or contact us if you don't see the part you need. The next thing we check are the clock signals. remove the brown wire from the transformer. Answer: Check the two normally closed SLAM switches for adequate pressure. section. This is a 60 volt, 8 amp NPN darlington. The other switch tests described below won't give this information. System1 switch test the outhole switch is shown as switch number 12 or left of the matching male pins. maker, to being in last place for many operators. Spirit (Gottlieb 1982)_DOZER_1.4.zip - VPForums.org Another substitue for the 2n5875 is the MJ2955, which is an inexpensive alternative. I have been restoring pinball machines since 1999. These are the right most CPU board First is the capacitors. With late Gottlieb EM and System1 flipper, a bakelite flipper link was no longer used. So the answer is to add two fuses (and a third fuse if no small (or under-playfield mounted transistors), and that will need to be fixed before proceeding. score displays coming on. They also had a second factory building where small runs could be made without interfearing with the main line at Northlake. Note if the game is set to 5 balls, dim when the game switches shows the high score to date in all the score displays. Often lightly sanding the driver board's connector "fingers" each transistor leg should be seen. very heavy duty coil (like a large drop target reset coil.). So a wire that is coded 012 means transformer input fuse). because this spider chip is no longer available and actually goes back to two different center tap of the big transformer to raise the

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