Stuff you should know about arcades
Getting Started
THE LEGAL STUFF
Step 1:
Step 2:
Power
Environment
What’s What? Discharge that Monitor!
- Monitor Chassis
- Arcade PCB
- Power Supply
- Isolation Transformer
Those are the Must Knows. When the game is unplugged, the only thing that could hurt you is the Monitor Chassis. See that big wire sticking out of a suction cup on the backside of the glass monitor tube? That’s the big boy right there. No touchie-touchie. If you need to service the monitor, you need to discharge that. I use an insulated flat blade screwdriver and a piece of 10 gauge wire with alligator clips on both ends. The monitor frame is made of metal. Clip one end of the alligator clip to the screwdriver metal shaft and the other to the metal monitor frame. Now, being careful to only hold the rubber part of the screwdriver, slip the blade under that suction cup. POP! You are done. That discharged the monitor.
Now you can safely disconnect that. I usually tap the screwdriver blade in there a few times, just to be sure. I also do it once more before I reconnect….just in case. Now there are other opinions about this….some say you will blow the Horizontal Output Transistor this way.. Ok. Then don’t do it my way and have a broken game (you were disassembling it because there was a problem, right?). I have NEVER had that happen (of course just saying that means I will@!!! Ha! I kill me J ). The other suggested method is the same as mine, only you add a 100ohm resistor in-line somewhere. Same deal, just more savvy I guess. Now you can safely touch everything in the game. Yaaay! Of course, this is with the game UNPLUGGED, not just turned off!
Got a question?
Email me J Cassidy@atarionline.com
Good tips to know
- Spray a mixture of water and fabric softener (1/2 and ½) on the carpet in front of your games….keeps static shocks down.
- Turn the brightness down on all your monitors to avoid burn in. I try to do that even if it means turning down the lights in my gameroom.
- Work an old monitor if at all possible. I would rather have a good Wells Gardner monitor from 20 years ago than a new Korean piece of junk. They are easy to diagnose usually, or they are not expensive to get fixed if you need to send it out. I suggest keeping the old ones going whenever possible.
- Don’t be cheap. If it needs a 25 dollar bearing kit, get it. The gameplay is why you bought it in the first place. If you did not care about the feel ,you would have bought the Anthology on PlayStation and been done with it. Spend the money to make it right or don’t get into it at all
- Learn how to use a voltmeter. It will save you big bucks in the future, and you can diagnose a great many things on your own. Get a good digital one that allows you to check AC, DC voltage, ohms and diode check, and capacitance (if you are really feeling saucy). Radio Shack sells them for under 40 bucks for a good one. Mine is a Sears one I used as an auto tech. I have literally fixed hundreds of games with that one. Only changed the batteries once, so it must be pretty efficient!
- Get a soldering iron and practice on a clock radio. Take that bad boy apart, and reassemble it. Practice removing and reinstalling the wires. Its about the same gauge stuff in an arcade, and the printed circuit boards (PCB’s) are about the same “population” (stuff packed on the board). Learn what stuff is by looking at it. Capacitors fail often in electronics, so know what they look like. The “Electrolytic” capacitors look like mini tubes that have a wrapping on them. I think they look like AA batteries, only a fraction of the size. Usually, you can tell a capacitor by the PCB label. They will say C234 or C123 on the PCB, and you will know that’s a cap. Knowing how to do a cap kit on a monitor is WELL worth this time and energy to learn. Promise.
- Everything needs ground. If you have a joystick that does not do anything, check for ground. The game works on inputs and their “connection” to ground is what causes an action to be registered by the game. Of course that is a simplified version of it, but enough for you to fix. Every button, switch, contact in the game has a ground side. If yours breaks off, you can reconnect the ground side to any of them and you are good to go! Word