Arcade Collecting > Miscellaneous Arcade Talk
Transformer interference in cocktail games?
ChadTower:
Remove the broken shield and put a coffee can over the transformer.
The interference could also be coming from the PCB. If the coffee can doesn't work, swap out the PCB with a different game and see if it goes away.
RayB:
Check where certain wiring is going......
fredster:
I have an Arkanoid cocktail that's doing something like that to me.
It's in a nintendo (like a donkey kong) cocktail. It has lots of issues like that.
1) It's a WG 4900, it has no mental shield around the monitor
2) It has this HUGE transformer in it
3) The PCB is mount directly under the monitor
I was looking at the pacman cocktail I have. It works okay. The PCB is on the side away from the G07 it has. The G07 has a bigger metal shield around the monitor. I put a piece of aluminum foil around a box and put it over the transformer of the Arkanoid, no dice.
Randy Fromm says that the monitor mounted like that will be more prone to the magnetic field of the earth too.
I haven't found a cure for this puppy yet either. The monitor was fine when it was in an upright. I mounted a brand new kortek like this and didn't have an issue with it. I didn't have to use the isolation transformer on it, but I did anyway since it was there.
2PacMan:
Well, i did a little work on my game last night. I took off the metal sheild and hammered it out straight again, and screwed it on tight....still no dice. So i tried the aluminum foil trick...it still didn't work. The transformer is well sheilded now, so it must be something.
The guy at the repair shop said that's just the way these things were made back then, he had no idea how to fix it without doing serious investigative work. After last night, i've decided just to live with it. It's not that bad, and i don't want to risk breaking my game again...unless anyone else has some other quick fix ideas?
ChadTower:
Try shielding the wiring. It should be a simple job of just wrapping foil around it... easily removable if it doesn't do anything positive.
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