Quoted from Luckdragon100:Hey there, Acula Doctors...
The time has finally come for me to have a dreaded MIST issue haha. Basically, the ball loads, then immediately falls off the magnet. I get "Check Switch 81 - Magnet Left" and "Check Switch 83 - Magnet Right" errors when I boot up.
I did the Magnet Test and recorded it here. Looks like 2 "Power Errors" -- one on each side:
https://www.dropbox.com/s/2k9ihj2tq3iigst/IMG_5301%202.MOV?dl=0
I've been reading all the old posts to get a handle on it but if anyone has any insights, it'd be greatly appreciated!
Many thanks,
G
Just a little update on this MIST journey...
Pinball guardian angel sulli10 really came to my rescue and helped walk me through it.
First, we tested the optos were working, by blocking them with my hand. The switch activated, so we knew the optos were working.
Next, we tried testing the magnet by placing the ball on the moving magnet as it was going across the playfield in test mode. The ball dropped right away, so it seemed like the magnet wasn't getting power. Next we checked the fuses at the power driver board. There was some corrosion on F103 and F102. I switched them both out. Both had continuity. MIST still not working.
Next, we unplugged J107 and J103 and replugged, then did the same with A -16697-1, J1 & J2.
Taking a closer look at the magnet wire, I put some electrical tape on some exposed areas and noticed a loose black wire that was meant to go in the white connector pictured. That was the culprit. I tried jamming it in as a temporary solution and that fixed MIST!
The black wire is still getting some resistance and comes out if I don't wrap it with electrical tape. That seems to be holding for now but it sounds like I'll have to re pin / replace the connector. So that'll be the next challenge!
Thanks again Sully for all the amazing help! G
IMG_5344.jpegconnector2.jpgconnectorafter.jpgcorrosion.jpegoldfuse1.jpeg