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While sitting on endless Zoom sessions - I decided I'd polish up the coin eject buttons. I found a good
wet sandpaper selection on Amazon. I started with 1000G to get a uniform scratch pattern. Once you do that, sand through all the grits (1000, 1200, 1500, 2000, 2500, 3000, 5000). I finished with some Novus compound. It took 15-20 minutes to do both of them. Before/after pic above.
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Coin door back together. Looks exacly like a 40 year old door again. Except not all bent and hacked up.
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The wiring harness had lots of black electrical tape on it. There was no reason for it that I could see and online photos of the harness have no tape - as well as the cocktail had no tape.. So off with all the sticky tape. The prior owner had put two full arcade systems in a single cabinet (what a hack job).. Two harnesses, two power supplies, PCB's, swap-able control panels and he moved the video and speaker cables back and forth. I'm guessing all the tape had something to do with that...
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Joust upright - horizontal on the bench. When I picked it up - I was told it worked.. It does. I'll change the IDC connectors that carry the power to Molex connectors as a start. The really do not stand the test of time.
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Williams has a braided ground strap that is stapled around the entire inside of the cabinet. I had removed all of it to replace the bottom sections. It sat as a ball of braid for the past few months. Pictures of the inside before I took it apart gave me enough information to restring it around the cab and get it stapled back in place as it was. It was a bit of a puzzle at first.
Joust has two wiring harnesses - the power harness and the 'data' harness' as I call it. The transformer and power harness are put back in place here. Got all of the clips and screws back in their original spots.
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Got the cashbox door in place and the marquee lighting set up. However - it didn't work. I checked connections, used the meter to test voltages, blew a couple of (new) bulbs before learning all about florescent lighting.
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Here is the ballast - looks like a transformer - but its an inductor. It limits current to the tube (as I understand it) Turns out they die - my Defender cabinet has the exact same one and it had failed also - making diagnostics tricky since they were both reading 14 ohms .. Not a dead short.. but enough to fry tubes.
Found the exact replacement on
Amazon. The replacement reads 32 ohms. Problem solved. Picked up a second one for Defender since I know its dead too.
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Fast forward a few hours - got the power regulator, sound board and system board in place with the wiring harness back in its original spot. Look close - LED reads '0' a joy in any Williams owners eyes. I'm using lithium AA batteries on the board. They are designed not to leak. So no board damage in this machines future.
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Coin door and coin door switches going into position. These are not traditional interlock switches that power down the cabinet - they are part of the "Service Switch" circuits. One is on the door and one you get to from the cash box. Normally there is a 3 button panel to do this stuff - but this setup is different. It appears Joust didn't have the service panel buttons - even though the manual shows them.
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The speaker panel is a disaster. The original plastic mesh was busted up so they added a metal speaker grill. It also has an oval 8 ohm 10w speaker. Glad I checked, the original has a
4 ohm (round) speaker. Replacement on order.
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Staples and bolts hacked up the opening. I'm filling with epoxy filler here. If I leave the bolt holes - the marquee lighting will show through. Have to wait for the new speaker anyway.. I also noticed they used a black stain on this board. It shows black under the marquee bracket, its long since faded to brown. Once this is all smoothed out I'll re-stain it black.
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Cabinet is cabled up, marquee working and I'm using the LCD temporarily until I get the CRT that it came with straightened out. I'll post an update on that once I get to it. Next will be getting the control panel back together as much as I can. Eventually I'll be waiting on the CPO and side art stencils before I can make further progress.