Archives for July 2015

Gyruss Restore Part 3

Posted July 18, 2015

Finally a Gyruss PCB popped up on eBay which I watched for several days, assuming the price would be driven past what I’d be willing to pay. In the end I got it for $57, quite a lucky break for an original Konami board in such great shape. I stood the cabinet back up and was happy and almost surprised to see the game actually working for the first time. I risked that luck by installing the high score save kit. I desoldered the existing RAM chip but the thing wouldn’t budge. A little solder wick loosened it the rest of the way. Next I soldered on the socket and pressed the new NVRAM into place. But when I powered up the board I saw a strange pattern on the screen. Eventually I realized I’d scratched a trace, and should’ve just cut the legs on the RAM rather than try to save it (as Matt points out). At least I gained a little trace repair experience.

Now it was time to apply the repro control panel overlay. I nervously taped it in place then started peeling off the backing and smoothing it down. All good, though I did notice a slight gap between the metal and the overlay in the back bend. Using the schematic I wired up the new buttons and Monroe stick, wiring it wrong twice before looking closer at the leaf switch placements. The leafs also required some straightening out to smooth the transition from one direction to another.

After talking with Mike, the hobby store dude I bought the cabinet from, I decided to change directions with the paint and try Rustoleum Canyon Satin Black, a spray paint rather than rolling it on. I’d seen his Gyruss restore in person, and photos of his Popeye which had a similar smooth black front, both of which turned out quite well. Two coats within an hour, then repeat 48 hours later. I went ahead and painted the top and back and various parts: marquee bracket, control panel hinge, vents, bolts and screws. For the coin door I used Rustoleum hammered spray paint, then a couple coats of Rustoleum semi gloss black spray paint. I needed to partially sand and repaint the coin door a few times to try and remove some bubbles that kept forming. It probably would’ve worked the first time if I had removed all of the original paint, but I wasn’t overly concerned since one day I’d like to replace it with a Centuri coin door.

While it was on its back I ran new t-molding down the grooves, using liquid nails glue on the bottom to hold it in place. Now that everything was dry I fastened the control panel on the cabinet, reassembled the coin door, then put in the blackout cardboard, original bezel art and smoked plexi. Slowly I realized that these were the last steps and it was more or less finished, after many months of slow progress and a variety of mistakes. After plugging it in I turned off the lights and put a new high score on the board, which beautifully remained once powered off and on.

I’m still looking for a top marquee bracket and replacement speakers, as both the originals have a rip in the cones, though they sound fine. A tube with less burn would be nice, but with the dark plexi in place it’s not too noticeable. The sideart is fairly worn but preferable to a modern replacement, plus I really like the graffiti.

Well, it’s been fun. I’m already missing having a project in the workshop to spend time wtih. Thanks to John’s Arcade videos and forum which have been incredibly helpful, Mike the hobby store dude who’s provided lots of advice along the way, and KLOV.

Gyruss Restore Part 2

Posted July 6, 2015

Back in January when I picked up a Gyruss to try and restore, our basement space I’d hoped to use as a workshop had no electricity other than a dim ceiling lightbulb and was full of discarded paint cans, unused bookshelves, a 100lb bathroom sink and a few spiders. The old, handmade workbench along the back wall held dusty blinds, a rusty mattress frame, and wooden shutters from some depressing far away time.

A few months ago I ordered two LED ceiling lights and brought back the electricians, who rewired several of our knob-and-tube outlets, to install the lighting and add an outlet to each side of the workbench. This motivated me to spend a few nights cleaning and a trip to the dump. Then I slowly started buying the tools I’d never really owned before: Molex crimpers, actually good wire strippers, a soldering iron, a hand sander, and a Fluke multimeter. That was a start.

The Gyruss itself had its own list: a better marquee, a Monroe joystick, a control panel overlay, t-molding, a new power supply, and of course to either fix the original PCB or find a replacement. When powered up both the audio and video were scrambled, and after checking voltages and looking for basic, obvious problems, a few forum posts confirmed it was likely beyond my abilities for the time being.

While waiting on a replacement PCB I cleaned the cabinet, added coin return lamps, Centuri 25 cent decals, a new lock, then tidied up the marquee light fixture wiring and did a tube swap for a less burned Wells Gardner K4900. A few hours alone went into restoring the Monroe stick to its original 360° glory. One night a moment of clarity made me slow down when I plugged in the cab and, having forgotten to put the monitor anode cap back on, created a lovely blue arc between it and the monitor frame.

Somewhere around this time I found another Gyruss PCB. Anxious to install Matt Osborn’s high score save kit, I practiced desoldering and soldering a 40-pin chip on another board, but when it came time to attempt the real thing I realized the Gyruss I had was a bootleg. I returned it and soon found a third board. This one wasn’t cheap, plus shipping from Canada, but it looked nearly new for being 32 years old. Sadly this one turned out to be a dud, so back it went.

Next I began working on the control panel, first using a heat gun to strip off the old artwork, then applying that beautiful pink citrus solvent to remove the remaining adhesive goop. After many messy rounds I sanded it down to its former factory glory, then primed and painted it black with Rustoleum enamel spray paint to prepare it for the overlay.

It was time to tip the game on its back and start sanding the front, as well as fill that extra security lock hole many cabinets end up with near the coin door. A little wood dowel and glue filled it in, then bondo smoothed it and a couple other spots. Now came what I thought would be one of the easier steps, painting the front of the cabinet. My first attempt was to use Rustoleum oil paint with a brush and roller, but this dried exactly as it looked, with lots of orange peeling and little bristle swirls. I tried again with just the brush, and again it dried with all the original brushstrokes.

I was starting to become frustrated with my progress, considering the game itself didn’t work and how hard it had become to find another board, that the front of the cabinet looked like a hand-painted shed, and knowing I still had to sand and paint a pile of metal parts. My lack of experience and limitations were bumming me out. Stay tuned for the exciting conclusion.