Hello I'm Johnny welcome to Tear down Tuesday Woohoo we've got little Johnny Johnny Be Good He's a little uh, uh Toy We dug out of the cupboard for San to have a play with and he's supposed to get one of these. You have seen him these little dancing toys like a Tickle Me Elmo kind of thing. except he's a little bear and he sings Johnny Be Good Back to the Future Awesome! So you press the button and what? Nothing happens. Unfortunately, he's uh, a bit, uh, busted because the uh battery holders inside are are all rusted away and broken off.

So I thought I'd just fix it and do a little, um, mini tear down of this thing. Not that there's much in these things, you know there'll be a motor and some cogs and a Servo and a little uh El Cheo uh PCB with uh, you know, just a chip to drive the thing and uh, sing uh Johnny Be Good and a little speaker and that's about it. But anyway, I thought I'd uh have a go at uh, repairing him and uh, get him going and singing Johnny Be Good and dancing around. hopefully.

now if we take a look at Johnny's backside here, we'll see that it was actually glued. um all the way around here like this. but I was able to get my screwdriver in there and and just, uh, pry it off and it looks like it. It just pried off pretty um, easily actually.

And then if we take this thing like this, it looks like it just slides. wh oh we got some wires there. They're probably going up to the uh sensor switch on the hand I'd say, but you pull that back and uh, it looks like there's the speaker. Yeah, they definitely go up to the hand I think and uh, bingo, we can pull up his dacks there and uh, you can see the top platform in there so that's what gives him the rigidity to you know, sit flat on the bench and then Bop around and uh, it's rather neat so I should be able to.

a couple of screw holes in there should be able to take that apart. Now the real problem with Johnny is that, uh, all the Springs are broken off and it's completely rusted and uh, really? I don't know of any decent way to actually, uh, repair that apart from, rip out this whole thing and replace it with a new new um 3 AA or even if you want to go smaller a 3 AAA battery holder in there. but uh, I can't access the wires I can see a couple of yellow ones down there. but I don't think they're the battery.

So um, really? I'm going to have to, uh, rip this thing open and see if I can replace, at least access the wires in there. So um, I can solder on a new battery pack now? perhaps? uh, one of my Chinese viewers might be able to tell me what uh, those characters mean? Is that like a QC test pass? Uh, kind of sticker I would presume. So, so if you know what that is, please let me know. So um, I've taken the uh, screws off this thing so let's try and get this open.

Hopefully it doesn't all fall apart Fall to Pieces right? I'm going to try and keep it together as much as possible and looks like this battery holder? just? yep, yeah, battery holder just comes out Tada There we go. Aren't too many surprises inside here at all, as you'd expect in these lowcost consumer toys. There it is a chip on board, uh, chip on board device that would, uh, contain the encoded uh wave? Um, you know, you know, some 8bit wave, uh sound recording of uh Johnny Be Good to actually play it and it have you know something to Drive the motor and uh, you know, not really, uh, much else in there actually and you know it'll have a speaker driver to drive it and uh, it's yeah on a cheap single-sided PCB there cuz these things need to get down to the absolute lowest possible cost. and there's a motor in there.

It looks like there's some cogs down in there. if you can see it, there's a capacitor across the motor down there, and uh, not much else. It all just goes into this one. Little cheap.

Bo Obviously the uh, these uh wires out here as we saw before penetrate the case and they go outside down to the uh switch. So um, there is no onoff uh switch on this thing. so you put the batteries in. This is a very low power device.

it only take you know, microamps on uh, standby or something like that and as soon as you hit the switch, it uh Powers up drives the motor, sings the song and uh, everyone's happy. so there's yeah, you know there's not much in this thing at all. there's just a little Armature there's a plate plate on the top there which uh Just Dances back and forth presumably the mo I'm not going to take all the cogs apart and uh, show you it's you know there's not much doing there at all. it just uh vibrates that place cuz all that plate cuz all he does is just uh uh, dance back and forth.

you know, just uh pops back and forth, his head just goes and his arms are just attached so they look like they going to. but all it is is a platform which just tilts back and forth back and forth back and forth while Johnny Be Goods playing now I think by far the uh easiest thing to do here is just, uh, get inside there and uh, hack out all the inner bits and uh, see if I can get another uh uh battery holder to fit in there either a uh double A or more likely a AAA battery holder cuz that'll work. uh, just as well. the battery life won't be as long, but that's all right.

Just want to get this thing up and running again. So what I might try and do first actually is, uh, just slide these out and see if I can replace that with a uh, new one cuz that's you know, rusted I don't want to try and attach new Springs or anything like that to that and I'll get this one down here out as out as well. and uh, I will try and get a uh, a new one from another uh battery holder and uh, maybe that will that will hopefully, uh, do the trick I Don't think I'm actually going to fit a double a uh, you know, another able a battery holder in there. it's just going to be slightly by a millimeter, probably slightly too small.

Of course, they're just horribly corroded. I'm not going to, uh, attempt to fix that at all. So I might, uh, get another couple of battery holders and see if they've got a similar cuz most of them will have a similar, uh, you know, sort of terminal plate like that to join the two um batteries in series. So hopefully I can get another plate and that'll just, uh, drop in there and I can use the existing holder.

Well, we'll find out anyway. Actually, on second thought and on second measurement, looks like the plastic is that top plastic is too thick to fit down that slide in there like that. which is really, uh, quite annoying. So maybe I'm thinking one of these uh AAA battery holders I don't have any uh, three-way ones I've only they're fairly rare compared to the two and the four-way on.

so I've only got a four-way AAA and it seems to fit in there rather snugly. if I chop out all the stuff in there and as it turns out that is looks like it's going to fit very snugly in there like that with the wire coming out the bottom and all I've got to do is put the uh positive one because the back of this battery holder here has this wire running across down here and all all I've got to do is uh, that becomes the positive wire now. So I just wire that up down there through to the positive one and it should just slip right in there like that. I Rather like it.

Wow. I'm really impressed. That's turned out almost perfectly. It's practically a perfect fitting there and I can use the existing cover plate on there with the existing uh screw as well to hold it in place.

and I've got less less battery capacity of course, but uh, it's still going to work a treat and the wires just come out the bottom. Sometimes you just win like that. Think we've made a little bit of a mess here so we'll just clean that up. and uh, we should be right to go.

ready to put back together I put some heat shrink on there. you got to. Even though it's only a toy, it's a sort of a oneoff little hack repair. You've got to, uh, take a little bit of pride in your work and uh, we'll slip this back together and hopefully we'll see Johnny dance.

Okay Johnny Do your thing ever? Bam All right, well done Johnny Beautiful! So there you go. Wasn't much of a tear down, sorry, it was more of a little just a hack repair of a uh Sean toy here. But anyway I hope you liked it. Catch you next time he's not sure.

Oh no. scary. Johnny Is it.