Arcade Collecting > Pinball
The Shadow
ChadTower:
Took my DMD and the driver board over to the repair shop I do a little work with... popped the driver board into a Roadshow and it brought the Roadshow's DMD up bright and strong. So my driver rebuild was good, that was good to see.
Of course it meant that my DMD is toast. We found a shorted zender diode on the 62v line on the DMD itself... a tiny surface mounted zener. Since the rest of the display is probably damaged too I shelved it for parts and grabbed a gassing DMD for the Shadow. I won't have the spare cash for a $125 replacement DMD until Spring, probably, but the gassing DMD is good enough to play with until then. Pics will be forthcoming this weekend.
ChadTower:
Put the temp DMD in... looks good enough until later. Played 15 or so games. It could use a shop job but really isn't that bad as is... still better than most pins on location. Left diverter doesn't respond to the button, I'll get that fixed. Some GI lights are out, probably a broken GI line someplace. I'll get that fixed too... still undecided on if I want to shop this sucker out now or just leave it as is for a while and move on to fixing another machine.
ChadTower:
DMD is taking a bit of time to fully warm up but is about 85% functional when warm. That's not too bad for now. The game is playable that way.
25-30 games reveal that the upper ramp is nearly impossible to shoot. I've hit it squarely and it always goes 90% up and then comes back down the middle and drains.
Needs a flipper rebuild, probably clean off the flipper optos as well... will have to wait for the spare cash for that.
ChadTower:
Pulled up the playfield for the first time last night... pretty clean underneath. I will have to take a look at the coin counter on this one... there is a small chance this sucker was never on commercial location, which would be really cool for me. It is certainly in excellent, excellent shape.
Looked at the coils that work the left diverter (which isn't working). All wires still soldered properly, no signs at all of coil failure. A close inspection shows one of the coils has a wrap lead broken from the lug. That would do it.
Tried to unwrap a length of wrap wire and resolder it to the lug... no dice, too much stuff in the way and can't do it without scraping the enamel off the end of the wire. So I cut the coil out, scraped the enamel off the end of the newly unwrapped length of wrap wire, resoldered that to the coil lug.
Tested the coil's resistance and compared it to resistance of known good same coils on the other diverter. All matched up at roughly 7-8ohms. Cleaned up the lugs of old solder and the ends of the wires I cut off. It's ready to go back in now but I went to bed before doing that.
EDIT:
Pic of the broken coil wire... if you can make it out, the screwdriver is pointing right at the break point.
ChadTower:
Put the coil back in and the diverter works just fine now.
The leftmost ring isn't lighting up with the others. I pulled the bulb and it's this tiny little bulb I've never seen before. I swapped it into one of the other sockets, no light. Swapped one of the working bulbs into the socket that is out and it lights. That bulb must be bad.
I don't have any spares, this thing is tiny tiny, and I've only found once source that is $1 each. Ow.
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