How To Ohm Test Pinball Coils and Relays Pinball Repair
Vložit
- čas přidán 5. 09. 2024
- Coil OHM chart flippers.com/c...
I have an Amazon wish list. If you want to gift me something for the Basement here is a list of things I can use in the Basement. www.amazon.com...
Want some Swag to support Marks Basement Arcade? Everything goes back into the Arcade to make more content! silverballswag...
I also take donations via PayPal just use marksbasementarcade@gmail.com
/ tvmgc
www.midwestgam...
Like my videos? Rate me on This Week In Pinball. www.thisweekin...
Please like and subscribe.
Come find us on Facebook / marksbasementarcade
All of my Videos I post are do at your own risk, I am not responsible for any errors or damage to your machine if you follow my videos since these older machines have been touched and hacked by so many people over the years.
If you would like to purchase some gear please visit marks-basement...
Thank you that was a great video. I've been a little scared of pulling the board out of my machine but from this I can see how much easier it makes it to test the resistance of things.
Yes so much easier.
Hi Mark !! Thank you for taking the time to make these informative videos. I still struggle with EM Game troubleshooting. Reading the schematics and understanding how to follow them is one of my main weaknesses.
Schematics are hard, they are not fun to read.
Ditto John, I get that!! It is like learning a foreign lanquage! It takes hours to figure out one simple connection in the schematics!, oh wait, no such thing as one simple connection!! lol
Saludos desde Chile muy bueno tus videos. Tengo un Grand Prix y estoy tratando de arreglarlo es un moño de vieja, saludos.
This came in handy tonight, Mark! Thanks again!
Glad its still helping people.
Ohms testing means resistance testing means electrical continuity testing. You are testing to see if that wire (the winding in the coil) is one continuous, insulated wire. You must disconnect at least the positive side (as you did at the end of the video), otherwise you are checking connectivity with "who knows what". Power off, as you said, and disconnect. Your ohm meter readings test to see if there's a short (meaning "no resistance") leading to very low readings or none at all. But you kinda need to know what the coil is rated for. If there's a short half way through the winding, you're going to get a reading about half as much as it's rated. Which might make you think it's OK, because the reading is not zero (low number). On these coils, you should be pretty close to the rating number for that coil.
I have done loads of work on solid state machines but still a little scared of EM games.... Your videos are helpful thank you.
Now SS games scare me more than EM.
Thank you! I had a flipper that stopped working and it turned out to be the stopper reads were not making contact. I was all set to order a new coil but the resistance was good.
Glad I could save you a coil purchase.
Great video. found 3 bad coils in the Meteor project I'm working on that kept blowing fuses. Some coils that looked Ok were actually badly corroded, and causing the coil to short. Subscribed!
Thank you. Did you enter the free giveaway? czcams.com/video/FLuvVKLD9J0/video.html
good to know about the lock relay ^^ I was wondering to replace it since it looks wel very crispy :d
When they are very crispy and not so yummy.
subbed.
Thank you so much for the support.
“I’m Paul Molitor…” one of your favorite baseball players?
I have a Batman for ever and the coil for the gun stays hot and burns up every time I replace it can cycle fine a few times then goes back to going hot. Help!
I believe you have board problems.
@@MarksBasementArcadeshould I just replace the board or hunt down the problem?
@@mike7972 hunt it down.
@@MarksBasementArcade ok on the PPB I found Q2 transistor blown I ordered a replacement but it won’t test the same a all other transistor. The wire diagram only says Q2 TIP36C no PNP or NPN or MOS I got a tip35c re ordered now 36c but won’t test the same. Where or what am I looking for? Thanks 🙏
@@MarksBasementArcade plus I haven’t put the Tip 36c in yet because I can figure out what way to install it or if it is correct as it doesn’t test the same.
MARKS BASEMENT, all relay switches cause arching across the contacts. I don't understand when adding a parallel capacitor across the relay contacts that it will prevent the arcing, any reasons why?
sounds like a short.
@@MarksBasementArcade No, all pinball switches will arc spark when the relay contacts leaf switches are closing. Look at the switches closing when triggering a switch on all pinball games the switches will arc spark. Adding a capacitor across the contacts will prevent this arc spark, why is that?
@@MarksBasementArcade On all Pinball games the LOCK coil is always burnt overheated. What type of Coil for the LOCK coil would prevent this to not overheat and get burnt
@@waynegram8907 None I know of. They last usually over 40 years.
@@MarksBasementArcade The new pinball games add in a parallel capacitor across the switches not to arc spark. Or they add a diode across the switch to prevent the arcing and sparking to make the switches last longer. Have you seen this on pinball games?
What if the reading is really high like over 33 ohms
Some will test that high. See this chart.... flippers.com/coil-resistance.html
Do you unplug the machine before you test ohms?
I would cause some may have power running through them. Any testing i Remove the power just to be safe.
@@MarksBasementArcade Thank you Mark! I've been watching so many videos trying to diagnose a flipper that stopped working on my 78 Bally Blackjack. I saw somewhere that is was "necessary" to remove power...but maybe that was to test ohms regarding Connectivity between 2 pins on a board. This is all very complicated, but it sure is fun to learn! Thanks for taking the time to share your knowledge!