Squawk And Talk Sound Board Repair - Bally's EIGHT BALL CHAMP Pinball Machine!

Ladies and gentlemen, this is Joe's Classic Video Games back with another cool pinball repair video for you this evening. We have been working on a whole bunch of pinball machines. We can't remember, look, they're closing in on me. We've been working on this Bally eight ball champ, which is a really cool game that a gentleman brought us. He brought us actually these five here that we're trying to fix up for him. And we did a whole video on it before. If you didn't see that, you need to go back on our channel and check it out. It was the previous video to this one. And when he brought it in, he couldn't get the thing to start. It would boot up, but it wouldn't start. So when we plugged it up, we had a bunch of issues that we worked through in that first video. We did get it to start. We had a switch problem. We had some display problems. We had some solenoid problems. We worked all through it. And then when we got to the end of the video, we figured out that the soundboard isn't working properly. Now it does speak and talk a little bit, but it seems like it's got some issues and it's not playing the background music. So we got to figure all that out. I'll start it up here, if it'll still work. All right, so the ball was already out, so it couldn't kick it out. But you see, there's no music. It will talk though, the speech works. If you leave it sitting long enough, it'll say something about, it's supposed to say, stop talking and start chalking. But just a minute ago, it said, whoops, too much English. And when you hit things that I believe do a call-out, it doesn't do the call-out, right? So we've got some kind of problem going on with the soundboard. If we hit the test button on the soundboard, it has a new CPU. If we hit the test button on the soundboard, chalk up, chalk up, chalk up, five X, three X. See how it repeats chalk up over and over? One more game, perhaps? Chalk up, chalk up, chalk up, chalk up, chalk up, well done, super, chalk up, chalk up, chalk up, chalk up, super, whoops. You get the point, okay? So it doesn't play background music and it sounds to me like it's missing some voice calls. It said, like I said, in a track it said, whoops, a little too much English. I don't believe it says that during a track. I think it always says, stop talking and start chalking. So it's saying the wrong things at the wrong times and then at other times it doesn't say anything. So there's some problems going on with this board. So I'm gonna go ahead and remove it and we're gonna work on it a little bit and see if we can get this sucker where it's got some of that nice electronic, do, ta, ka, boom, do, boom, ta, ka, boom. They did this really cool music in the mid 80s with Bally, okay? Also got the Williams, they probably had more sense than that, but Bally had this, do, ta, ka, boom, do, boom, it's this digital, you'll love it. You'll love it if I can fix it. Well, let me stop talking and start. All right, game over attract sound. The game has been designed to attract attention in the game over mode by periodically saying, quit talking and start chalking. This feature is an option that can be removed by setting register 47 to zero. So I've got that on and, but like I said, it should be saying that and it's saying different things. So that's just a sign that we got some issues. All right, so here is the famous squawk and talk board. And I wanna mention this sticker here so people don't get the wrong idea. Okay, so this thing's broke, obviously it's not working right. And it says, this sound PCB was recapped and then it says arcadepartsandrepair.com and it's got a date. Arcade Parts and Repair didn't recap this. They send you a kit and then it comes with this sticker. So somebody else recapped it. So I didn't want people thinking that this guy fixed it and then now it's already broken. No, he just sold some parts and it comes with a sticker. You're supposed to, like I would write by Ronnie the Great and then the date on there. But, so I don't know who did that. So they have replaced a lot of the capacitors. I don't know if they've done all of them, but we'll check. I mean, I see one that they haven't for sure. And this is a tantalum capacitor. There's so much to talk about with this. I hope this doesn't bore the hell out of everybody. This is a tantalum capacitor. See how it looks? It looks like a gumdrop. These are known for going bad. That's the first capacitor you want to change actually. These electrolytics like this one, it's a big old filter cap. If that goes bad, you'll start getting like a hum in the sound. If this goes bad, stuff won't work. And these boards are bad about some of these little caps like this going bad and then blocking the sound. So we'll check through and make sure all of those are put in the right way too. Because if you put one in backwards, it won't work. But it's a squawk and talk, okay? So it has two sides to it. It's capable of two different things. Now, if you look on here, it says sound volume. That might as well say squawk volume. And then that says speech volume. That might as well say talk volume, squawk and talk. These little potentiometers that they used on the Bally sound boards are God awful. These things are horrible. They cause you all kinds of problems. So if you work on one of these before you cap it, replace those. That's the most important thing to replace on the board. Second most important thing is tantalum capacitors. I don't, there's another one. Third most important thing, replace capacitors. Fourth most important thing, clean the legs on the chips. Now this is one of the speech chips. You can just see how horribly oxidized that is. But the speech is working. So this is actually what generates the robot. So it's actually working, although it looks really bad, okay? So there's two sides of the board. One side makes the music and one side makes the voice. The voice seems to halfway be working. The side with the music doesn't seem to be working at all. You can kind of hear it making a little bit of, like some little clicks every once in a while, but that's about it. So how does this thing work? Now I am not a hardware engineer, but I've just worked on them a little bit. So I kind of understand it. So one thing you need to know about schematics, like Bally sent you the schematics in the manual, but they're not always exactly like the board. For instance, on this one, it says J3, which they say is a vocalizer connection. And they show you this big old connector with like 40 pins on it. It doesn't even exist on the Squawk and Talk board. There is a J3, but it's only got seven pins on it. And it's not even plugged up in this game. So this is just a different reversion. Maybe the original version of the board had that. I don't know. It says this was drawn January of 1981, right? So some of this stuff isn't even on the board. This thing also could be modified. Some of these didn't have speech. This one does though. So we kind of got to ignore all that and we'll just do our normal thing. It's not wanting to focus very well. There we go. So it's ran by a 6802. Okay, so is the 6802 working? Yeah, probably because the speech is working kind of halfway, but it's working. So unless there's like a minor problem with that, it's probably working just fine. Now it could be that you've got like one pin's not working right or something. It's because we've got some kind of addressing issue. So for it to find data on the ROMs, it uses an address lines to tell it where it is on the ROMs and then the data is the actual data that transmits or the code and everything. So we're getting the wrong address on some of the stuff because it's playing this sound when it should be playing that sound. So it's looking in the wrong spot, right? It's not playing just garbled crap. It's not just going, how are you? It's playing something that makes sense. It's just the wrong thing. Like I said, chalk them up, chalk them up, chalk them up over and over again when we're doing the sound test. So it's instead of it just not being able to tell what the data says, it's just getting the wrong data. So it's an address problem, right? So this is the CPU and you can have two different ones. This one has a 6808. So it can run a 6802 or 6808. And the difference is one of them has an internal clock and one of them doesn't or something like that, right? You can look all that. It's not really that important, but if it's got a 6808 in it, put a 6808 back in it. You might be able to change that with some jumpers or something. So anyway, the CPU needs ROMs to talk to, to know what to do. So it's got several ROMs or room for several ROMs. You can see on this board, there's only three. So you might be tempted to think, oh, well, there's a ROM missing, that's the problem. Well, they made these boards where they could do all kinds of different stuff. Remember, they used them in machine after machine after machine after machine. So depending on how much information or like in the music, for instance, that they needed, maybe they only needed three ROMs. Maybe if they went just crazy where it had all kinds of stuff going on, they needed more storage. So they used all four ROMs. So maybe there is a ROM missing, but maybe not. And then it's got a RAM chip, because you need RAM to be able to read the ROMs and to do what you're doing. So it's a 6810, that's their common RAM chip that they used in a lot of the Bally machines. So that's it right there. See the little pink mark on the side of the chip? That's an old thing that some of the test guys, some of the repair guys used to do back in the day. You would check this chip and if you figured out it was good, you put a little dot on the edge up on the corner of it. Now, I've seen enough of these on these Bally's. They may have done it at the factory, but I would think that that's probably a repair man did that at some point. He's going through and marking all the ones that he's already tested. He even did the little DAC chip. Okay, so ROMs, RAM, CPU. So that's a computer right there, right? So how do we figure out where the problem is? Well, one way to do it, since we know that it's split in half, is to look at the output. So here's where it connects to the speaker. And then what drives that is this chip, TDA2002. So that's just a common little audio amp, right? So on the board, that's it right there. So since the speech and the sounds all go through the speaker, we know that it all comes through here. Now here's where the capacitors are a problem. This C27, if it was to go bad, completely bad, that would block all of the sound because it's right in the middle of the sound line. If that cap is screwed up or missing, you would get no sound out. But we're getting speech, so we know at least the speech is working. So look right here, here's another one. It's a 1.0 microfarad coming in there, right? But you see this little branch here, and there's another 1.0 microfarad down here. Well, why would there be two things coming into one? Because this is where our two types of sound converge. So if you go back a little bit, they've got it labeled pretty good. Let's see. Yeah, so it splits, and remember, we're going backwards. So this area is one, and this area is another. Well, this LM3900, that's a preamp. Those are known for going bad. Those go bad a lot. And when they go bad, you won't get any audio out. But if you look, they're using the same chip, U14, to do this side, which is the speech side, and this side, which is the sound side. So it could be that just part of the chip is screwed up and it can't pass volume, or it can't pass the sound. It could be that this capacitor is screwed up and it can't pass the sound because that capacitor is screwed up. Or it could be this capacitor is screwed up, which would make the speech not work, right? So you're just working back through. This won't tell you exactly what the problem is, but if you just look at it and try to understand what's going on, the problem, or what could potentially be the problem, will become apparent to you. So let's just stay with this one. So if we go back through, you can see it goes through a preamp to raise the voltage, and then it goes through an amplifier to make it loud enough that you can hear it right. Okay, and before that, I'm trying to find our volume control. Let's see what they have it labeled as. R69. This says speech volume control, but notice it's not even connected. Don't worry about that. We will find an R69 in here somewhere that is the speech volume control, unless this is an old version of the schematics where it doesn't even list it at that point. But anyway, let's keep working back. And then we come over to here. This is another preamp. So they're calling it the low-pass filter. I guess that's just to get some noise out of it or something. And you see, here's yet another capacitor. If that capacitor's bad, everything's running right through here. This line is probably something to turn it on and off. Let's see if we can follow it. It says analog. It actually goes over here to this vocalizer connector that we're not even using. So that line's not doing anything. So we can ignore where that pops off, right? And keep going back. The low filter, and if you look, the input of the low filter is, one side is five volts, and then the other side is this line here, 3C19, like we talked about. And then if we follow this around, it comes from the TMS5200 output. Bam, which is labeled speech, right? So notice it says speech out. So that's this chip, 5200 output, TMS5200. So this chip is your speech chip, obviously. Like I was saying, it's the robot. So how does it work? Well, you see, it's got a bunch of connections to this chip and blah, blah, blah, blah, blah, and ultimately it connects back to this chip, okay? So this is a PROM. Well, why would the speech chip be talking to a ROM? Because that's the chip that all of the information is stored in, all of the phrasings, right? So this chip can go, hurrah, hurrah, hurrah, hurrah, hurrah, and sound however it wants, and you can change it and you can make the frequency higher and lower and all this. But the actual, what it actually says, the code that tells it, okay, do this syllable, then this syllable, then this syllable for this length and this length, and however it does it, all that information's controlled and contained in here. So if it's calling out the wrong locations where it's saying the wrong information, but it's the correct information, it's just the wrong one, you've got some kind of problem where it's looking in the wrong spot in this PROM. That could be something like, sometimes they'll have jumpers on the board to set it for a different size PROM and all of this stuff. And on this particular one, if you look, see it says U9, there is no U9. So how's that working? Well, they must be able to control it through this PIA and don't need the extra ROM in this instance, right? Look, it says pins 15 through 28, not even connected. So maybe that wasn't used much. All right, so we go back even farther. What's controlling it? This is a 6821 peripheral interface adapter at U7. So that is, if we can find it, bam, right here. So U7. So the CPU is looking at the ROMs and the RAM, and it's doing its thing, and it can speak to a separate part of the board, the speech part, through this interface adapter, peripheral interface adapter. Again, this is really common in most pinball machines. That's how they basically use it to expand the CPU. It's just how the 6800 series stuff or 6802 series stuff, it's how that worked, right? So the speech is all this one whole section, okay? So they are, the CPU could control that and tell this to play specific phrases or to make the thing where, I don't know exactly how this chip works, but basically it's able to control it through this PIA. So if we've got a problem with it playing the wrong thing, it could be this chip has a bad leg on it, something, you know, some information is not quite getting through, or it could be that it's telling it, like it might be telling it, let's see it on the schematics, it'll be easier. I don't know how they work, but let's say, see the address or the A lines? Maybe it's supposed to say D6 and A2 at the same time, but A2 is never connected. So when it tells it to do something, instead of it telling it both of these at the same time, it's telling it just that, right? So maybe it's screwing it up, that's why you get the same things over and over again. I think it would be well worth our time to clean those legs on that chip. The problem is though, sometimes they break when you take it out of the socket, but we're gonna get there. All right, so all of this to say, I know I'm long-winded. All of this to say, the CPU and the ROMs and the RAM are running code, basically telling the CPU for the speech side to control all of that through this chip and this. So since we're trying to figure out the music side, this part we can kind of ignore, right? So this is the music side. We need to check to make sure that cap's been replaced. And then we could have a problem where this preamp is bad. We could have a problem, if you travel back, you could have a problem where this preamp is bad, right? Here's another capacitor coming out of the digital to analog converter, okay? Now, if we go back through this preamp, let's see where it's coming from. It leads back to a AY-38912 sound chip. That's this, okay? So this chip is again, a pretty popular sound chip. It's like a little beat box. It's like a little keyboard. It can play, do, do, do, do, do, do, do. I think a very similar one, not this exact one, but a similar one was on the old Donkey Kong board and Nintendo used it for some stuff. But anyway, if you're into this stuff, you probably know a lot more about it than I do. But here's where a lot of our sound's coming from. So that chip could be bad. Where are we at here? So you can see that the way it's controlled is through another 6821. So your CPU can control this one to do the sound, which I'm just calling the background sound and sound effects. And it can control this one to do the speech. So it's a neat little board. It's got all kinds of capabilities. And I love the cheesy nature of the voice and the sound. They could make that voice sound completely different on different games by changing the frequency of it. So if they put it in something like Medusa, it sounds really deep and weird. And if they put it in this one, they raised it up so that it sounds more like a guy playing pool. And it's just fascinating. So anyway, we also have the DAC chip. I don't completely understand everything that's going on there, but basically they're sending data to this chip. It's a digital analog converter, and you can see that it is also joined in to the background sound. So they need that for some things, right? But it's not the speech. It's not connected to the speech side. It's just changing digital information into analog information that you can hear, right? Which basically you're getting the same thing going on over here. So I'm going to look at the caps and confirm that they've been, all the little ones have been changed. I'm going to see what those two tantalum caps even went to, see how important that is that they're changed. And then we're going to clean our speech chip, and we're going to replace our two volume pods. And we'll go from there and see what that changes for us. And then we'll test it, see if that made any difference, and then we'll keep going. All right, folks. So I'm putting the board back in, but before I do, you might've saw in the previous video, we worked on the switch, and there was a little cap that was shorted on it. So I've replaced the cap. It's a 0.05, and you can use a 0.047. That's the modern equivalent. And I also re-soldered the wire that was broken off of our potentiometer. Now you might be tempted to think that that is why the sound wasn't working. Well, the way that the board is wired, it's all really confusing, but I double, triple checked. The sound and the speech are definitely mixed on the board. So when they leave, there's only one line leaving. And this was the, basically both of those lines go up to here, and then the speaker is connected to the center pot, the center leg on the potentiometer. It's a white wire, which you can actually see there's a white wire on the speaker back there. It's all confusing as crap. I've been messing with it, just tracking everything down, making sure. And I think what was going on was because of the way that wire was broke, you couldn't use that pot. But I think you could, I think basically, you would have had to adjust it just on the board in the back. Now, when you have to work on machines like this, save yourself some trouble and get a decent soldering iron. So I've broken out our old trusty Weller soldering iron. You see how beat up this thing is. We use this all the time. We've been using this for probably 10 years. We had one before that, but I kept dropping it. Like if it fell off that right now, we'd probably crack the case or something. Been lucky with this one so far. But the one that we had, we've still got it, it still works. It's just the case is all broken up. So we glued it back together and everything. If you're interested in a nice soldering iron like that, go check out our website. There's a link down below to Amazon where it shows you these Weller irons. If you follow that link, if you buy anything or even if you don't buy anything, it gives us a tip for you doing it. So we appreciate that. But one of the problems people have when they work on some of these electronics is they use a cheapo soldering iron. I like using cheap stuff. I don't mind using cheap stuff at all. The two things you can't really scrimp on though are a soldering iron, you gotta get a decent one, and a multimeter, you gotta get a decent multimeter. So check out the link down below to Amazon. And like I said, if you buy anything on Amazon, it helps out our channel. Even if you don't buy a soldering iron, if you go there and buy socks, it helps out our channel. But anyway, so I've got that soldered back in. I've got that wire back on. I put the board back in the back box. So let's try it and just see if there's anything different. I changed the two potentiometers. I changed the two tantalum caps, but they weren't really involved. They were involved with the negative five volts. They weren't involved with any of the sound or anything. And I cleaned the legs of all of the chips, including that speech chip that was so rough. So I don't know that it's gonna change anything. Okay, so you just heard it say, whoops, too much English in the attract mode. So it's supposed to say quit talking and start chalking. But I just booted the game up. Let's do it again and you can see it. So I'm gonna turn it on and just listen to the speech. Nothing that time. I also got something going on here. I think there might be lots of bad connections in the game. Okay, balls and out hole, nothing. Okay, no sounds at all. Also no speech at all. Okay, if we go in and hit our button, pot works on the door now. All right, so the way that it's repeating chalk up, chalk up, chalk up. I was thinking, ah, that seems like that's screwed up. I went back and watched an old video I did where I tested the same thing in this same game. And it's actually correct. That's what it's supposed to do. It seems weird, but that's what it's supposed to do. Okay, so we need to look at the schematics again. I've got a pretty good idea where the problem might lie and you tell me what you think. All right, so let's check out the schematics again. Here is the CPU, okay? If you hit this test switch, you are connecting five volts directly to this pin on the CPU. So you are doing it yourself. You're basically, I mean, you are in charge of that, right? The CPU then, using all of this, talks to this PIA and tells the speech chip to chalk up, chalk up, chalk up, ball one, ball two, right? So we know this is working and we know this is working and we know this is working, or at least pretty much working. None of this is doing a thing, okay? So if you look at, while the game plays, something or another, either the CPU or whatever, is using this PIA to tell this sound chip to send out sounds on A, B, and C. And you can see they've got all three of them tied together. I've seen Bally do that on other setups. That's just how they do it. So they've got A, B, and C, the three outputs, tied together, and then that's our sound, right? So I've looked all through here. I couldn't find anything. All of these caps have definitely been replaced. Now it could be still this preamp or it could be that preamp, but keep in mind that both of those preamps are used by the speech as well in the speech work. Sorry, everybody keeps calling and coming in, which is good. So if the CPU was trying to make sounds instead of speech, it would do it through this PIA and then into this chip, which would have A, B, and C tied together, and that's the output of the sound. Okay, now here's the interesting part. If the MPU that's running the game, different board, not the soundboard, different board, wants to make sounds happen, like for instance, you start the game, and it goes, blub, blub, blub, blub, blub, blub, blub, blub, blub, blub, while all of those lights are blinking, how would the CPU on the soundboard know that? How would it know that you started the game? It wouldn't. The CPU, though, can use these lines, the sound select lines, through this chip to select the sounds from here. So you see it goes into there and tells the sound chip what to do, and then the sound chip does its thing. So it's ran externally or internally, and neither one's working. Now, at the beginning of the game, whenever you first turn it on, the boot up, sometimes it's giving me a sound, like it's playing the wrong thing. So it's saying, you're taking too long, or whatever. It says, too much English. I think it keeps saying. Well, how would it be doing that? Well, I don't know. I guess it would still interface the same way through this chip, and then through the PIA up to the CPU to tell it to do it, right? All that to say, I think this sound chip can't output anything. That's my theory. I think this sound chip's probably bad. If it's not this sound chip, then it's probably this PIA, but it looks like externally, it can just talk straight to the sound chip and have the sound chip make the noise. So I'm gonna see if I can find one of these, and we're just gonna swap it out and see if that brings our sound back. It's an AY38912. All right, so I do not have one of those chips. So what I've done is I've hooked up a Logic Probe to it. Now, you can't test with the Logic Probe. You can't actually test the audio output because it's analog, but you can kind of probe around some of the other stuff. So we may get lucky, and it's this 4049 here, because if that went bad, you'd have the same problem. So it's in gameplay right now, and I'm probing this sound chip, and one of the pins is pulsing. So there's one, two, three, four, there's five signals in. So one of the pins is pulsing, the other four are not. You gotta be careful of them right here on this transformer too. So 14 is not, 13 is, which is probably the background sound. 12 is low, 10 is low, nine is low. I guess that was in. Okay, that one is stuck high though, and after I messed with it, I was able to get it to make some sounds. I think if I hold that on there, let's see if I can reach down here while I'm holding my camera too. You'll just have to hear it, folks. That's the Logic Probe doing its thing. There we go. So why is it working when I'm using the Logic Probe? It's because this has a little bit of voltage in it. So what we're doing probably is we're jumping over the 4049, which might be shorted or something, and we are using the voltage that comes through the Logic Probe, just a little tiny bit, and it's just enough to make the sound chip work. So we might get really lucky. If that 4049 is all screwed up, that might be our problem. So I'm gonna swap it, and hopefully that'll do it. All right, I swapped it. If that got it, we should get the correct, quit talking and start talking at the beginning, because theoretically, the CPU is telling it to do that, but it couldn't get all of the address lines or data lines or whatever it is through to it to tell it exactly what to do. So let's see. So nothing. You would think at the beginning, it would play like a little something while it was booting up. That wasn't it. Same problem. We're dead in the water. I think that sound chip might be dying on us. I tried swapping the PIA, because I did have one of those. The problem is that thing, it's not common. The slightly older version is very common, the 8910. I've got like 20 of those, but the 8912, of course, the one I need, I don't have, and I don't have a game I can steal it out of either. So I'm gonna have to order one. All right, the new sound chip came in, and it didn't fix a freaking thing, but I just noticed. So I've been going through, man, what can I figure out? And so I started thinking, it seems like the problem is the CPU is not talking to the board right. There's something going on there, because if I hit the test switch, it works. I looked up the flash code. It's basically checking everything and passing everything, with a few exceptions. Now I can't tell the final output stages. So I've replaced both of the two LM3900s, which are the preamps, didn't change a thing. And I swapped the DAC, the DAC, just in case, didn't change a thing. And of course my new chip. So then I started thinking, well, they have repinned a couple connectors. I wonder if they screwed up the pin of one of them. And then when I was looking at this, look at that. There's a freaking broken, there's a freaking broken wire. That could have been the whole thing. All right, so I got to figure out where that wire goes. It's a blue wire with a red trace. So 21, blue with a red trace would be 21. And if you look on here, here's the sound module. It should be pin four, and there's nothing in pin four. And if you look here, this is the CPU, the controller board. It says peripheral 21 goes to pin 10 of J5. Let's see if we can find that. J5, there it is, pin 10. Is that 10? One, two, three, four, five, six, seven, eight, nine, 10. It is that pin right there. So it's right on that side, but it's not installed on this side. That could screw up the whole thing because it's getting its information as... So that one's missing. So just one of the input lines is completely dead, it's completely gone. All right, so let's try repinning that, putting it back in the connector where it goes and see if that changes anything. Okay, so remember I was saying we had some kind of addressing error because it's saying the wrong thing at the beginning of the game. It says, stop talking and start talking, and it's saying, ooh, too much English. So that makes complete sense. If it was missing one of the lines, instead of getting this hex decimal or this decimal, whatever they call it, BCD code, it's getting the wrong one. And so it picks the wrong phrase. And then when the game's playing and it's supposed to be playing background sound, it's not sending the code to do background sound. It's sending some screwed up code that maybe there's no, that doesn't do anything. Let's see if it changed anything. Eight bar, three bar. Perfect, that's what it's supposed to say. I remember now. Yeah, when you first boot it up, it says eight bar, three bar. Quit talking and start chalking. Okay, all right, I'm trying to. Chalk up, rack them up. All of that over one freaking wire. The weird thing is the pin was missing. So the wire had been broken. So the wire had been broken off, but the pin that goes in the connector wasn't in there anymore. So I wish I would have noticed that before. Would have saved me some time. Now, I know what you're thinking. Well, you wasted money buying. Quit talking and start chalking. It's almost like I'm doing this on purpose. Oh, you wasted money buying that chip. That's a shame. Well, no, I didn't have one. Now I've got an extra one. So next time I won't need to buy one. I'm cool with that. Here, I'll show you my chip set. I keep chips in all this. Look at all this. So usually I've got what I need and I have a little board. I'm getting to it. So I've got a little AY8910 section here and now I'll just put my AY8912 in there with it. And next time I'll find it. I'm satisfied with that. All right, folks. So this display here, if you remember, most of the digits weren't working. So I took it apart and all of the resistors were burned up. So I replaced all of them and it fixed it. So they're all working now. Now this bottom one here, I want to show you. Yeah, that's a little more like how it looks right now. See how most of the digits or big parts of the digits are missing? Like that seven, it looked real bad. Nine, it looked bad. Zero. You see how there's a big spot right here that doesn't light up very well? That's because we're illuminating the whole thing at one time and it's outgassing. So this particular display, over the years, gas has leaked out of the display. It's just eventually that thing is no longer going to illuminate. So it needs a new glass. The problem is they don't make new glass. So you would have to get a replacement display for that. So it's a seven digit valley display. A seven digit stern display would also work. Or you could take the glass off of a seven digit Williams display and solder it in there to replace that one. Ultimately, the fate of all of these is going to be they're all going to end up with LED displays eventually. But personally, I like hanging onto these plasma displays as long as possible. And we're fixing it for a customer and that's beyond the scope of what he wanted us to do to it. So we're just going to leave that alone and we'll make him a little note. I'm making a note on basically all of these machines to tell him what is. Okay, so let's do the solenoid test. I believe they all work. That's all of them, folks. They're all working. Okay, let's do the lamps. Lamp test, 90. It does weird stuff with the sound. The sounds were different when I started the test but I think it's just the way that the things are made. Okay, so I'm going to replace these bulbs that aren't coming on. And just to check that all of them are working and we'll go from there. All right, folks. So I got all the lamps with the exception of two lamps. There are two lamps ran by a transistor that one of the lamp sockets was shorted together. So I think it fried the transistor on the MPU for that lamp line. But it's a surface mount, it's a replacement MPU. So it's a surface mount transistor and I don't have the ability to swap those and I don't have those transistors. So we're going to have to leave it. Maybe you can tell the two lamps that are out. There's also a broken plastic down here by this right flipper. The gentleman's going to shop it himself. There's a plastic broken right here. The ball can get stuck there sometimes. So you can't play it too much but it does seem like she's working good. Everything's functional. All the switches work. All the solenoids work. Sound board works. Game will start. I agree, it was a nice shot. See the ball can get stuck right there. You gotta be careful. Too bad. Is that not the one that goes? Yeah. One more game. Awesome. All right, so there you go, folks. I think it's time to send it back to the customer. Let him do the rest. I hope you enjoyed it. We will see you on the next one. We have many more left to work on.