Repairing Data East's 1990 Original THE SIMPSONS Pinball Machine - Power Supply W/ Hole Burnt In It!

ladies and gentlemen this is joe's classic video games back with another cool pinball repair video for you this afternoon we got in the cool data east simpsons pinball machine buddy of ours traded this in um on an arcade game and it's got a few little minor issues so we're gonna work through it a little bit we figured we'd show a little video of us working on it and then we'll do a video of us playing it i've had this one before it's pretty fun you know we usually do the older ones and this one's starting to get pretty old i think it's 89 or 90. um but yeah cool game great theme everybody likes the simpsons don't they got a little bit of wear nothing too crazy play friendly everyone data east why you little i like this one because it's the early simpsons you know it's just within the first couple years of the show so it's kind of their the iconic simpsons coming through man when i was in junior high school the simpsons were a big deal i had the t-shirts i used to go to the flea market and buy the cheap t-shirts the bootleg ones they were about seven dollars and uh you could get one that said uh i'm bart simpson who the hell are you and then all the kids would try to wear that school and you'd get in trouble at school for wearing it and so then the next time you bring another simpsons t-shirt and they try to make you change that one too even though it didn't have a cuss word on it that was the little games we played whenever we were in the 8th grade very cool we've got it here in the window you know you're not supposed to really have these in the window it will fade them but it's been sitting here for two days we will be moving it soon people don't worry about it i don't even know why y'all brought that up it's got a little bit of wear on the paint but wear on black paint's easy enough to fix you just paint over it the last one we had the play field was actually burned there are some bulbs underneath the play field and the last one we had the bulbs had actually scarred the play field like there was spots that were messed up because of that but this one doesn't have that it does have a chipped plastic i might have to see if i can order one of those this weird one you wouldn't think that one would chip um the left ramp's a little worn i don't know if we'll paint that or not yeah looks a little rough it might be better to paint the green one's not as bad but basically we want to get it where it plays well got a little bit of something on the plastic there maybe that can be cleaned up almost looks like paint or something i don't know i don't know i think he said there was something going on with that little plastic there too might look into that drop targets look good the cooling towers look good um the scoop up here or the hole up here doesn't look that bad the up kicker a little bit aware but moe's got a little wear on him a little bit of wear on this one that's been touched up just a bit so it's a typical routed game you know it's not in mint condition but it's 30 years old too a little bit of wear there and then up here i think a lot of that's actually wax that white that's not [Music] weird call for oliver close off so yeah pretty cool pretty cool the back glass is in really nice shape i didn't see anything really wrong with it it has the original displays in it that still work good um and the thing works decent so i'll set up the tripod we'll play it just for a game just so you can see what kind of shape it's in whenever we got it in it is working and then we'll work through it a little bit and uh i think it was serviced a couple years ago so it's it doesn't have the the typical problems that they do after they've sat for forever it does look like it might be missing some kind of trim for the glass at the back okay so the tripod we'll play it a little bit and then you can see what's going on with it okay so this will be our beginning video let's turn her on lots of leds you know people love those leds now on a game like this though they look pretty good um the displays are working back box looks good there's bulbs out here and there so we'll have to look through all that okay let's try to play it [Music] we lost our first one come again okay the kickback doesn't work but i believe we already knew that [Music] okay and it didn't sense that we lost the ball so it's got some okay i found it shoot ramp twice for mystery valley it says come again all right so it pretty much works but it has some it has some issues so we're going to look in the back box and see if we need to do any work back there i believe there was something going on with the uh general illumination connector so we'll check that out and see here's inside the back box this is the sound board everything looks cool this is the what did they call that the it's the pbb yeah that's right ppb the ppb board which is basically just a bunch of resistors and diodes it all looks good and then you have the big huge cpu board um which is doing all kinds of stuff so it looks like this is probably lamps this is probably solenoids this may be switches or special solenoids probably yeah i'm going to say that's special solenoids this would be switches this is set up a lot like like the williams um system 11 stuff very similar at least to me um it's had a a nv ram substitute put in so that you don't have to have batteries on it anymore and they've removed the battery pack so everything looks really clean and nice on the main board so there's not much to do there unless we find something that's not working right over here is the power supply and it has the typical problem that these have where they get burnt connectors so you see something going on there and then there's a connector here that's missing and it looks like they've soldered the wires to the back of the board so we're going to see what in the world is going on with that i don't know that they've got it where you can remove it so we're probably gonna have to cut that off put a new connector on it because basically if you if you have the board soldered in there where it can't be removed without soldering or cutting wires um you basically can't put a different board in it so you know if we sell this to a customer and down the road something happens with the power supply you know if if they can't buy a new power supply or we can't put in a repaired one or whatever that's not good so we need some way here that we can make this where you can be able to remove that and replace it with a with a standard one i'm interested in why we have charring up there usually these yellow and white lines are the um the general illumination so it could be that before they put the leds in it it was running hot so we'll see all right so i'm going to pull that out we'll put it on the shelf i mean on the bench and take a look at it so here is the power supply as it was mounted in the game this is the display section down here again fairly similar to the williams display section and their power supplies big old voltage regulator with a 19th week of 1990 date code on it this is probably the original one from this machine fuses okay so i believe the general illumination comes in through here from the transformer and then it goes out here but what's going on is this connector here is actually just ground lines so it's uh it's a six pin connector with just two black lines going to it on the two bottom pins that on the back had a trace that was going to this ground plane on the side that's completely burnt up to where there is a hole in the board wow so they have the wires through there and they were just soldered i think they were behind it just soldered to here which will work but again we're trying to make it where it's removable and in the future i'm not going to replace this because it's working fine but i want it to be um repaired where it's removable so that somebody if it does finally bite the bullet 20 years from now or whatever that somebody can remove it and have it repaired or they can remove it and swap another one in or they make replacement power supplies you could put a brand new one in it so i want to clean that up so since it was mounted like that it looks like what happened was that caught on fire for whatever reason i don't know why that would do that on a ground connector and then the smoke charred everything else so that wasn't really through stress there that's just literally smoke damage so what i'm going to do is i'm going to remove these pins uh clean up the board the best i can see if there's any way i can mount the connector back in i think i may be actually able to do that um i wonder if there's room sometimes you can put it in a different spot but you need it to be somewhere where it doesn't hit another trace like i can't put it right there because there's traces there there's all kinds of stuff there um hmm that's really the only place i can put it it would fit right there but on the back there's traces right there so that won't work you can also use a different um yeah i may be able to use a different as long as the the plug in the game is the right one i may be able to like attach wires to the ground and then have them run out and then have it plug in in the air with a connector like this if it's the right one and then if they were to swap it out that same connector would just plug into the board instead of plugging into the little harness so maybe we'll shoot for that if i've got all of that stuff i might i don't know if i've got all that kind of housings but i may i might surprise you um i think i've got a parts one too where i can just make sure that i got my connectors right as far as like maintenance on the actual power supply though it's working good and i don't see anything that's really problematic these don't have quite as many problems that you you need to um uh update for reliability like some of the uh like the older valleys do and things like that so um but i think i'll check in clay's guide the penrepair.com see if he has any suggestions on recommended upgrades for this sucker but let me look into that connector first let me take these off so i can clean all of this and we'll see if i can get it looking better well folks i've had a change of heart after looking through my goodies i don't have a replacement molex piece for that and i don't have the one that hooks to this either so this is the one that needs to go in the game on the wires that they cut it off of so i need to put this back in the cabinet so that it can theoretically plug back into the board but i don't have the connector there i could order one obviously i don't have that connector and i don't have a female in for this to rig something up uh to make this usable i would love to keep using it though because i don't like letting something like that stop me and the thing was working right but i can't leave it in there if it's soldered in place you know i gotta have it where it's at least removable so i thought well maybe i can find that piece on a parts one so i started looking through my stash and i found this so this is a parts one the voltage regulator is missing one of the fuse holder things is missing but everything else is there and the connector is good that one's a little bit burnt up but so is that one the connector is good and i do have this so i think instead of i think instead of stealing that connector off of there and trying to put it in there i i really have no reason not to use this actual board because it's not burnt you know so i'm just going to put this one back together and then we'll test it in the game um you can test these if you don't hook everything up so i'll unhook the outputs of it and we'll make sure that we've got our correct voltages before plugging everything up but yeah i think i'll just fix this up and then we'll just make this one our parts board might as well make the parts board the one with the hole burn in it um but i'm not sure that there's anything wrong with this but um we'll check though so let me um let me find a two in 6057 and we'll put that in first okay so this is what all we did so that was a 2n 6057 we've replaced it with a 2n 6059 which you can't read what the world the way it's inked you can barely read it let me darken it up so you can definitely see it there you go you can kind of see it so the 2nd 6057 is now a 2 in 60 59 which is a slightly beefier version okay so we got that so then i replaced all the fuses and made sure that they were the correct ones there was a fuse holder here that was missing put a new one in a little stuff like that you had to keep in stock you know um the bridge rectifier tests fine all of the diodes everywhere test fine the two transistors that create the voltage for the display test fine i replaced the main filter capacitor it was an 18 000 micro farad 25 volt and i want you to notice that it was an 85 degree capacitor a lot of times people say oh you got to use 105 degree you got to use it but the original ones weren't 105 degree but i did put in 105 degrees so don't worry about it okay just the thing it's better if you put in 105 degree but if you got the 85 one and you need it go ahead and use it okay replace the minor capacitors i didn't replace this one because it's a hundred and four 150 micro farad and i don't have that size look at this i finally got radial capacitors that are a hundred micro farad 160 volt um i usually i have to put axial one i mean a radial ones on but now i've got axia that's what i'm going to say axial so i got the right ones that i was finally you can stop all of the complaining emails about that we're good okay so did that i reflowed the solder on the connectors but a lot of them already had the solder had been reflowed by someone else back in antiquity no burn marks everything looks pretty good okay and if you notice where i'm going to put this plug it's keyed one is a female and the one that goes in here will be a male so i have to get that right so make sure that it'll plug in and then whenever you put it in the game if you leave these two connectors off this one runs all of your logic so it's basically putting sending the 5 volt 12 volt negative 12 volt over to the logic board so you want to leave that off so you can test it to make sure that you're not going to blow everything up and then this one runs the display so it gets in i think 90 volt um and maybe negative 90 volt from the transformer and then this does its thing and regulates it and makes it uh plus 100 volts dc and minus 100 volts dc and it sends the 5 volts as well to the display to run the actual alphanumeric display so you definitely don't want this one plugged in if you're testing the power supply because if it burns up the display it's no problem you can fix it it's going to be 300. so you don't want to do that if you can help it okay so we're ready to put it back in the machine i'm going to go crimp this on so that it plugs in nice and i'll show you what it looks like plugged up and then we'll test it for voltages okay so here are our wires so they were soldered i just clipped them off trying to leave it as long as possible and then strip it back with wire strippers okay and then got some little crimpers here well the way i like to do it is actually put the terminal in the thing and you can squeeze it until it clicks and it kind of holds it in place works pretty good i'm left-handed though which causes all kinds of problems so i've actually taken the jaws out and reversed them in the connect in the the pliers and it works better for me if you're right-handed it would work even better for you right um and then you just crimp it together if you need stuff like this the a good place to get these terminals is a place called greatplainselectronics.com uh ed there that runs that he uh he's a real cool dude and he specifically gets stuff for pinball and arcade applications so he's a cool guy it's where you can get a lot of that kind of stuff you can get stuff from newark to and mouser and digikey and a lot of people use places like that but ed's a cool guy and he's he kind of researches the exact right thing to make sure you get the right size and blah blah blah blah so it's a cool site go check it out great plains electronics and then if you go to our website go to lionsarcade.com we've got some like some of these tools and stuff that we use in our videos we have links to that on our website there's a parts page and we've also got some of our t-shirts and stuff like that on there if you want to support the channel like our buddy kelly kelly is one of our best viewers he's probably watching right now every time i'm making a new video he's a watching and then he takes pictures of himself literally all over the western part of the globe wearing our t-shirt he sent us a picture on the atlantic ocean wearing our t-shirt uh you know looking at the beach on the beach looking at the ocean a week goes by and he sends us a picture from like freaking oregon wearing our t-shirt on the other ocean you know he's a cool guy thank you kelly all right so i'm gonna put the connector on it we'll pop it up in there and see what it looks like okay folks we got the multimeter out got the board in there have the game turned on but i have the connectors disconnected like i was talking about so basically there's no power getting over here to the main cpu you can see there's no voltage no leds on or anything so why am i doing that again it's just in case that power supply is screwed up like what if it's sitting out 12 instead of five well then you're sending 12 to every board on this chip on this board bam there goes another 300 bucks don't do that same thing with the pot with the sound board bam there went 200 bucks don't do that so you got to test it first so they have these cool little test points up here on the top this is 12 volts unregulated all right negative 12 volts unregulated right 5 volts 5.01 that's pretty good now the 100 volts is a little harder to test because there's no test points for it but i was able to check them off of the the connector there by the way i'm four inches from it it just looks like i'm touching it i was able to check them off that connector there there's probably a couple other spots here where you can grab it there's the negative hundred and the other one i believe is this one baby nope that's not it well i checked it on the pins and it's fine i just can't uh you'd have to if you put like a a connector on there and put the pin in there it'd be all right but anyway i checked and they're both there so there's a positive 100 and negative 100 so that should be good for the display which i haven't plugged in yet you can see our new connector look how beautiful we fixed it like it should have been fixed now you might have saw some of the pins on the other connectors are a little charred too see that one but it looks as if they've been replaced so the housing is a little charred but the actual pin has been replaced in it so so i think we're good so i'm going to turn it back off plug those two connections in and then hopefully it'll boot right back up so we should be good got the display plug back in let's see if she'll boot up awesome very cool very cool the display looks fine but it already did you know we didn't do anything with that so i think everything's good okay so why would those two ground wires burn up like that let's see if we can find it in the schematics and figure out why in the world that was such a screw up okay so this is the pertinent part on the schematics the all the noise of uh things screaming and dying in the background it's from an arcade game that's on area 51. so don't be distracted by that okay so on the in the schematics it shows you that from page 28 the power wiring diagram it sends 25 volts ac for the solenoids and 13 volts aec for the lamps through these wires and they come over here and they go over here and they go into two bridge rectifiers and then the bridge rectifiers do their thing and they're basically just diodes and they turn it into dc the sound's working um and so once it's dc the positive is 34 volts dc for the solenoids the negative is tied to the negative of the other one and the negative of the capacitor right and this one the positive is 18 volts for the lamps and the lamps are strobed by the way so that's really only six volts is all that the lamps get okay so uh the negatives the grounds the grounds are tied together and that's the two wires that were all burnt up so basically what happened was the bridge wrecked fire shorted and started pulling all kinds of amps and uh burnt up the wires at the weakest joint which was where the plug touches the board so that makes sense i wonder i guess this is another situation where there should be a fuse on these ac lines because if that starts happening a few should blow over here somewhere but they don't have one maybe it's on the power maybe it's before that let's go see if it's before that this is the power transformer and there are in fact eight amp fuses on the ac lines it's just whenever that bridge shorted it didn't blow the fuse i guess or something hard to say or somebody had an 80 amp fuse in there instead of an 8 amp fuse there's no zero there people you got to use what it actually says it says 8 amp put in an 8 amp don't put in a 15 amp you'll catch things on fire like your house don't do that okay so i think we solved the problem and and figured out the uh figured out what the issue must have been so um yeah that's that on to the next thing okay folks so that's enough for today next time we'll uh we'll work on the light bulbs we'll work on the switches and the solenoids and see if we can figure out what's working and what's not working make sure to leave your comments below what you think so far hopefully if you've got a power supply for a data east or a williams system 11 which is similar uh this will help you fix yours so somebody just snuck in the door who in the world was that i didn't catch them they were off camera so leave your comments below and let us know what you think make sure to give us a thumbs up for taking the trouble to film it for you and make sure to check out my brother donnie if you don't know about that if you like watching us work on these arcade games pinball machines you probably like us working on like watching us work on old buildings my brother donnie and i have a couple buildings we've bought in a town near here that we're fixing up to help revitalize downtown so go check that out so my brother donnie channel down below and we will see you on the next video hope you enjoyed it