Arcade Collecting > Pinball
Damn GI....
smartbomb2084:
Now the plot thickens...
Just exactly WHAT light piece did you move to where it SHOULD have been?
And where WAS it before you moved it back?
Also...Did you 'Ohm out' the transformer yet?
Toadie:
I'm not sure how exactly the plot thickens or what I would have to gain but not telling the full story up front like I did but you go on with your bad self Pinball Wizard :laugh2:
Before you do though you may want to go back to the statement in my first post "I was replacing a #47 bulb on one of the top bumpers with an LED 47 and when I twisted the bulb the metal underneath hit a screw and shorted out my GI track."
If you look at the picture you will see that the standard light bracket has a wavy pice on the bottom. That piece has the ability to turn due to the fact that it looks like it's connected by a rivet type thing. I would guess that over time (machine is from 1980) that it loosens and turns more easily. Ie. Like when a guys is replacing a light bulb and twisting to lock it in.
To be more specific with my answers...
The WHAT, the the wavy metal piece and the WAS is directly under lamp socket.
As for testing out the transformer, I asked how to do that and never got a response.
Posted by: Toadie
« on: June 05, 2013, 08:01:53 pm »
Insert Quote
While the board is out, is there a way for me to test the transformer?
I'm not sure how to do it
smartbomb2084:
So you shorted the bumper lamp socket to one of the bumper body mounting screws?
Screws that are just through plastic and wood and that touch nothng else?
As for the transformer test... I told you already...
Measure resisitance across lugs #17 and #18 WITH A DMM....You should get .3 or .4 Ohms..
This is the winding that delivers GI AC voltage to the game.
If you can't do this simple thing you may be selling the game to some one who can.
ChadTower:
When you short a lamp lug it's very easy to figure out what you shorted it to. Go back in and spin it. You shorted it to whatever is within reach of the lug.
Toadie:
Hey Smartbomb... you can stop replying any time. I'd rather hammer my way through it than deal with someone like you. The fact that I have more than enough money to buy 10 of these things pales in comparison to the point of me trying to learn something because I'm curious. Congratulations, you know about electronics, I'm really impressed :notworthy: I'm sure you're a joy to be around.
Hey Chad, I haven't tested it since I've been pretty busy today but I'm wondering if maybe this is happening...
For sure it's that screw and in theory our little troll is correct. Technically the screw that just goes through plastic and wood should not short it but... what if it's touching a staple from the underside of the play field? if I recall correctly the lamp holders are bent as they go through the playfield and tied back with metal staples. If the screw somehow touched that staple then technically it could be touching one side of the lamp.
Since I'm not an electronics genius like Mr. Wizard :blah: I'm not sure what the effect could be but logic would dictate that it could result in a short no?
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