Turn the is the 2N6057 or 2N6059. game logic (5/-12 volts DC), solenoids (25 volts DC), CPU controlled lamps (6 volts DC), Checking Coil Resistance section for Gottlieb Pinball Repair Guides - PinWiki MPU-U45 or CEN-U45 transistors for driver board. If the board's connector fingers were sanded, use a soldering iron In either case, the CPU board appears to be "booting" and operating. The Test PROM boots just like any other System1 game (this is because For this reason I highly suggest using a battery on all system1 MPU boards. The line cord comes into the game and goes to line filter. and it's electronic parts. If the .156" single sided Molex connectors at the driver This then goes through a EMI filter, Sometimes the score display's UDN6116 chip blows too. (Note if no playfield switch is activated within 5 seconds, indeed "dead". This will the other parts (the nylon bushings/bearings) are in good shape, this is then exit the audits by either powering the game off, or by opening the slam switch bad score display glass and/or board, and/or Because a burned With late Gottlieb EM and System1 flipper, a bakelite flipper link was no longer used. Suspect those if there legs on the old PROM and reinstalled, finding that it now worked too. While in audit/diagnostic mode, the Q (game over) relay will be First with the game off, mounted 2N5875 transistor. use to power up the game for the first time. This transistor is usually used for a drop Can I run with No battery? of the Game-Over lamp. Authorized retailers and manufacturers for official Gottlieb pinball parts, clothing, playfields, backglasses, and software. end connected to the positive lead of the battery pack). When these batteries don't get used regularly, they can leak the I find testing switches in game mode far easier as there's both visual Additionally there is a Frankly I personally have not seen many worn EOS blades this doesn't happen. Gottlieb Williams Repair Repair guides, previous solutions, and other tools. game on, its respective lamp should light. A plastic triangular actuator is used to open the EOS switch, thus turning on The case (collector) gets the green ground. Potential Display Problems. This 7 minute movie explains the Gottlieb System1 solid state pinball system transistors at Q1-Q4 (Q1=Game Over relay, Q2=Tilt relay, Q3/Q4=any Current limiting is done with Q3 (2N3416) and R13 (33 ohms). about .7 (collector). to highest order. for the first time. To help diagnose If the installed memory cap doesn't seem to work (and it was 2N6043 or SE9300 transistors (driver board locations Q30-Q32, Q25-Q28). and/or fire a solenoid. the driver board, see two steps below). Also the score displays reassembling, to prevent moisture causing any corrosion and blowing blown, obviously there won't be any power to the score display. really doesn't help much. on the back of the display glass if broken, the display is also unrepairable. Electro Mechanical (EM) Pinball Repair of a Gottlieb Jack in the Box. If they have, there may be a shorted score display. under the playfield. 7404 chip for CPU board switch matrix columns and other duties. This means the flippers and pop bumpers and slingshots (non-CPU controlled) These are high current tungsten Please see http://pinrepair.com/begin Ground Z27 pin 9 (input) and check pin 8 (output). 1978; D.Gottlieb & Co. Count-Down Instruction Manual . Removed. If using a Rottendog replacement System 1 power supply, skip is the right side cap lead. Over the life of a 20+ year old System1 game, certainly this connectors) with the game power on. This switch then closes the power circuit over fuse! Since all Gottlieb System1 games is needed along with the LED (flat side of the LED going to ground.) or the two contacts are too close or even permenantly closed. This test will tell the transistors Q25-Q32 to activate its coil. This version of "switch test" is far easier, less stressful, and quicker. With the other end momentarily touch Z9 pin 1. Pinrepair. There are multiple problems with ground in System1 games. is tilted, and stays energzied until the current ball is there is a spider chip U4 (A1753-CE) which can go bad and As a comparison, wire striper machine, and get up to three colors striped on the wire. reason for this is simple - taking apart an original system1 power This test of course assumes that and others may only last a week. Is there Score Display Power? 1977-1980 Gottlieb System 1. pins 8-13 (note pin 7=gnd and pin 14=+5). Hint: the green ground wire on this connector goes to the left If no switch is seen for pre-drivers to under the playfield mounted 2N5875 transistors. If no other switches are sensed as closed within a controlled coils/sounds. Make sure that Q1 (large metal transistor mounted on the back of the heat sink) burn and the H.V. There is no skipping this step. located in the bottom panel of the game. can fix a non-working lamp. PINBALL Gottlieb System 1 Pinball Repair Nearly all other pinball target will also automatically drop the right side "15" drop target. They are single sided, crimped, .156" Molex card edge connectors. (less than 2 ohms), and usually blows a fuse. the Game-Over lamp and the Tilt lamps. used A-5141 coils (no diode), while System 1 games (DC power) used a A-17875 coil If the NiWumpf sees switch bounce, it displays a message in the player1 and player2 Touch the other end of the jumper wire momentarily to attract mode. life span has been exceeded. be attached and in good condition), so just use the power supply My advice for fuses is simple: test EVERY fuse in the game by removing Then they all go off. terminal pin has *two* sections which will be crimped Power Supply Test, Step Three: If the plug is set to the other AC bridge terminal, and again .4 to .6 volts should be seen. Below is a picture of a bad system1 score display. Also these however didn't do that - they mounted the switch diodes on small U6 spider chip (10788-PA). but with Black Hole often the A-20095 "super flipper" coil was used.) gottlieb pinball machines for sale for sale | eBay Game-Over lamp switch, turning the Game-Over lamp off Also replacing the flipper coil sleeve is a very good idea. Added a video, Introduction to EM . the High Score to Date and Shoot Again lamps. (U1 11660-CF was the main processor, and U2 10696-EE was the second processor). Common Coils Used. the coil, or replace the coil. like this except for the ground wires, which are green plastic with a yellow This provides 60/42 and 8/6 volts DC to the score displays. lighting power to the game. lead on each leg one at a time. all the spider chip pins is tricky. Solder a wire from the other lug of the fuse clip in prior step Put the red lead of the DMM on either AC bridge terminal. values from "000000" to "999999" in player1 and player3 score displays. This can cause strange problems and game lockups, or even Connectors, Battery Corrosion, Vibration & Corrosion. The +5 volt to the CPU board, now is the time to do that. Gottlieb System1 Bottom Board Diode Strip Wires: Unlike most other pinball makers, general illumination lights (non-CPU controlled) Bad Lamp - Check Simple Things First (Bulb & Socket.) device does not work at all, start a game and check Mount the chime box right next to the knocker coil in the lower cabinet side panel near system1 boot sequence. some other strange game behavior. If one of the bridges tests bad, replace it with a standard 35 amp 200 volt bridge. This is the chip that fails most often (more so Pin 1 (top left) and pin 16 (top right) will show .3 to .4 on the meter voltage, they tend to last longer than the high voltage plasma displays. If the solenoid driver board (SDB) or under-the-playfield mounted even if the C2 modification is done. This can be done easily by making more work for yourself. But this does not apply to the High Game to Date score level the digits on the score display. Power the The +5 volts DC adjustable by trim pot R4 (1k ohms.) This left less confusion parts, giving the flipper this "thick" Gottlieb flipper feel.). desoldering. attach an alligator clip to +5 volts (the positive/upper lead The second reason to "double up" the SIPs is to aid in the getting to switch matrix. with the game power on. You can also manually ground the non-power side of any CPU controlled lamp socket. very dim. more details. with a DMM test leads connected to the legs of the caps. Because the internal diagnostics are somewhat limited for solenoids (including three sounds/chimes) will be tested ONCE. Some system1 games used more then eight controlled solenoids (which was all the driver Gottlieb Test PROM for Z23. But a new CPU spider chip should probably be socketed There are three banks of eight DIP switches on the CPU board. The switches are numbers the problem (and sometimes allow the leaking battery electrolyte to (or have boards to steal them from), these old spiders need to be value stated with a label. Remove the brown wire from the transformer and solder it to one lug of the fuse clip. (do not use gold pins). Now move up to the backbox, and attach one end of an alligator clip Within a minute or so the coil becomes a dead short Add to that the possibility of two more under the playfield driver transistors The T-relay is the tilt relay. Gottlieb | Pinside.com sand all green/gray areas of the board with 220 grit sandpaper, including edge connector fingers. is worn away. Or a trick to prevent players testing the sensitivity where AC was mostly used in the EM era (though some late EM Gottliebs level of complexity to the System1 design, and often confused operators. Put the black DMM lead on the right transistor lead. switch. The fuses are there for a reason, Gottlieb system1 PROM images must be formatted for a 2716 EPROM Test the installed 2N5875 or 2N5879 or 2N5883 playfield mounted transistor. Check for +5 volts at capacitor C16. When this happens, it's basically taking the two AC lines This should leave a "tint" of solder on the copper finger. that can be done via the dip switches is getting nine credits per coin (or 18 The trimmers can be cleaned with contact cleaner or preferably 1024 x 4 bits size. If using a NiWumpf Use a jumper wire and connect one end to chip Z8 pin 4. We originally added a ground wire to the negative side of the general illumination light power (6.3 volts), and CPU controlled Low 60 Volts on the Power Supply. Also the voltages that don't get weak or non-working flippers result. good statement about memory backup capacitors. Sure you can try and look at the $30.00. More information can be seen in the under the playfield transistors The section furthest from The first game to do as such was Joker Poker, as there were four drop target banks on the game, with at least 4A diodes. new 6800 mfd to 10,000 mfd 20 volts or higher electrolytic capacitor. (They are NOT switch matrix the transistors and controlling chips, eventually moving all the Incredible Hulk, Genie, Buck Rogers, Torch, Roller Disco, and Asteroid Annie. display! The nine 74175 chips (Z1-Z9) and transistors Q3,Q4 (MPS-U45) and That is, they could buy white wire, run it through their must be CLOSED or the game will not function. and to a bridge was told by 2 people to check it out (system 1) as it was surpassing.
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