Dracula Pinball Mist Multiball Problem. Diagnosing and fixing the 24 Opto PCB board.
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- เผยแพร่เมื่อ 2 พ.ย. 2022
- I attempt to repair my 24 opto PCB board on my Bram Stokers Dracula pinball machine after my mist long opto beam stopped working.
- บันเทิง
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When I first saw Mist... I was freaking out how the ball wandered across the playfield. Very cool.
One of the coolest features in pinball for sure!
A jack in the box with no head??? LOL!!!!
Sometimes when people find a burnt resistor like that, they will put in one of a higher wattage, but as you found out in this design they are also useful as a slow blow fuse! This change equates to the 25 amp fuse in a 5 amp circuit lol It's good you didn't alter that design.
They key to knowing this is the low resistance, and it's between the bus and a circuit. Nice Job!
Haha! Thanks man. Ahh I should keep the 1/4 watter in there then I guess!
Love never dies!
You got it!! :)
Thanks for the video, Mike. I learned a lot about this potential problem. Great for preventative maintenance. Great work!
Oh yes preventative maintenance for sure! Thanks man!! Glad you liked!
Great job with this fix 👍🏻
Thank you! Cheers!
Interesting stuff, as per usual.
Right on, thanks :)
Great timing on this video! I'm just about to repair a mist board myself, but now i won't go straight for the inducer... will check R4 and look closely at those 2 caps 1st & clean them up if needed
Haha right on! Good luck brother!
Great job on that board😎👍
Thanks brotha
"Throw you into some Black Hole loop"... im sure you meant that literally and figuratively! Lol
Haha you know I did lolol
"One more attempt..." 😂
Lol my aim not so good!
On a meter m means milli (0.001) and M means mega (1000000)
Thanks Jim. Would a Mm be a megamilli then!! Haha just joshing!!!
Brave resistor, taking on, all of the 12v line, good job it did. If it was not there, a short across the caps, would take down the 12v line across the machine. Stick to the 1/4 watt, it's like a fuse and is protecting the rest of the machine.
µF is micro farad 🤣 Nice to see you fixing stuff, instead of sending it off for repair. 👍
Ahh thanks man. So i should keep it 1/4 amp and not up it to 1/2 amp then eh!
@@pinballshenanigans Manual say 1/4 watt, I would stick with it. The only thing a 1/2 watt would do would take longer to burn out and could lead to worst things.
As the board had a fault(shorted Cap), the resistor adsorbed the power and finally burning out, protecting the 12v line, from shorting. This gives a clue where the fault was( the opto board) and not the whole machine blowing the 12v fuse, thus leaving you confused.
Hope this helps :)
That makes perfect sense. Appreciate the reply. I will keep it at a 1/4
I love Dracula! Also, didn't you say in a previous video that you would try PinSound with this machine? ;)
Oh did I miss a comment? My friend has pinsound on his BSD and it is awesome!!! I love it!
@@pinballshenanigans You didn't miss anything, but it's your reaction to that friend's BSD I saw in one of your videos I'm talking about. It IS awesome!
@@Kajinku AHh gotcha!
@@pinballshenanigans Bro that Pinsound is awful in this game. This games sound is perfect as it is. It really does suck.
What are you using for your close up camera ?,, Camera, Lens, and settings? Thanks
I use my Galaxy S20 FE. I use 16:9 video aspect which is the best for youtube!
Satisfying!
Very!
@@pinballshenanigans How do you like your Ghostbusters pin?
@@808zhu I do like Ghostbusters but I ended up selling it. Someone really wanted it and I was okay with letting it go and moving on to the next shiny object LOL
@@pinballshenanigans Right on. How about medieval madness? Is it on your list?
@@808zhu Would be great to own one one day but havent had one cross my path yet!
I ended up just buying a new 24 board, R14 completely went up in A lot of smoke. There was no saving it sadly.. This happened last week, all drac optoboards dying now huh?😅
This is a great fix to start out with if you haven't done it before. A soldering iron, solder, and either wick or a solder sucker is the minimum needed to get this job done. Give it a try!
Don't forget Isopropyl alcohol and an old toothbrush or q-tips to clean up the electrolyte from the cap and also the flux from the solder.
@@jasongreene303 The R14 resistor burn seen in this video is nothing like mine, theres like an entire hole there haha..
Ahh shit! Yep I guess it is about that time eh!
@@PastorOW Oh wow! What went bad on that board? That resistor must have been held right at that 1/4w breaking point for a long time to get that hot. Damn.
Well, if you're not going for a restoration, can you still fix that board?
@@jasongreene303 Definitely worth a shot, but for now the replacement board from homepin is installed. All is working well now though. If only this video came out a week earlier, then i would have tried to fix it for sure.
If that R4 cooks again I'd try upping it to a 1/2 watt resistor, looks like your replacement was a 1/4 watt. R12 on that diagram was also a 10 ohm just like R4 and it looks like the manufacturer used 1/2 watt there
Ahh that is a great idea thanks. I should just go ahead and up it now since it is out of the machine!
K, in this design, it's a bad idea going to the 1/2 watt rating since the intended use of the part was a fuse along with acting as a voltage dropper. It would be like putting in a larger fuse into a circuit and roasting something expensive.
@@jasongreene303 I have decided to keep it at a quarter watt! 👍
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Blood is too precious a thing in these times... 😁