Build Your Own Arcade Controls Forum
Arcade Collecting => Miscellaneous Arcade Talk => Topic started by: jfh2112 on October 15, 2006, 12:32:09 am
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Now that my MK is pretty much complete, I decided to start working on my poor, poor MK2 cab I got at the same time. I pulled the PCBs today and started to clean them up a bit - spiders are nasty. :-\ I pulled a chip off the main board and noticed that one of the pins was broken off halfway. I pulled another one and noticed that two pins were broken. So I stopped pulling chips. I plugged just the main PCB into my MK cabinet & fired it up. No video. The board LED comes on, and my coin door lights come on, but that's all.
I'm guessing I'm gonna need new chips, or a new PCB. Or, I need to connect the sound board as well for it to do anything. Am I right, or am I way off?
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Why were you pulling chips?
Were they broken before you pulled them, or did your pulling break the legs?
It's posible to 'fix' the chips by soldering a capacitor leg or something similar to the remains of the broken leg. Delicate work, though.
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I was pulling the chips so I could clean the board. The guy I bought the games from keeps them in a warehouse that might as well just be a tarp supported by sticks, for all the protection it gives his games. The boards were caked with dust & covered in cobwebs; I'd guess it's been in the warehouse for at least 8 years.
As far as the pins being broken before or after I started yanking them, it's hard to say. There's a lot of rust on some of the pins, and they could have just rusted away, and my removing them finished them off.
I did the same thing to my MK boards and had no problems, luckily. It actually runs better than it did before; got rid of some background corruption and general wonkiness.
I seriously doubt my soldering skills are good enough to fix the pins. Although this would be good practice. :) I'll probably end up getting another board set.
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How were you pulling the chips? Were you using a chip puller?
Never do that. Take a flathead screwdriver, and GENTLY raise one end, and then the other.
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God, no. I hate chip pullers. :) I've always used a flathead screwdriver.
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I can prog. a set of eproms for you
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I can prog. a set of eproms for you
PM sent.
Jeez, every time I ask a question these days, one of you gets money now. ;D
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God, no. I hate chip pullers. :) I've always used a flathead screwdriver.
I like using my teeth!
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God, no. I hate chip pullers. :) I've always used a flathead screwdriver.
I like using my teeth!
I just yell at them until they pull themselves. Lazy, no good, slacker chips.
-S