Arcade Collecting > Restorations & repair
Dig Dug Restoration by a Complete Noob
ChadTower:
Your English is as good as half the people I work with. And they're American born.
One thing, though... bad contact doesn't increase voltage, it increases heat, through reduced material for the same current to pass through. Increased heat burns it smaller, which makes it hotter, which burns it more... until it's fried. ;D
Level42:
Thanks. :D
Yeah, maybe should have written a text before filming that :D The funny thing of it is that I had only one hand to handle the connectors, and the first time I take off the original one it really pops loose right away. More or less accidently but it really shows how poor the tension has become.
What I actually meant is that the AR-II will increase the voltage because it will "think" the voltage is too low because of the bad contacts.
Hey, I am educated in electronics, if there's one thing I should know is that U=I x R :D
In essence they should have used separate connectors for the power connection. One's that are designed to carry more current. Williams made the same mistake with their connectors. But hey, they didn't design those machines to last 25 years :D
Pop Culture Portal:
My God, yesterday WAS Friday the 13th!
Well, got a new multimeter and checked the resistors on the AR and 12 of them are bad (I wrote down which ones didn't beep at me).
Can I check the capacitors with the multimeter?
ChadTower:
That's not how you check resistors... you need to look up the value and check it with the Ohms setting.
You can't really check the caps with the multimeter. Assume they are bad and replace them because electrolytic caps have a relatively short lifespan.
SirPeale:
You absolutely can not check resistors with continuity check. It must be done with the ohms setting on your multimeter. A lot of resistors don't pass enough electrons to allow the continuity check to beep. If any of the resistors are going to be bad, it'll be R29 or R30. If they're not burned, they're probably okay.
Chad is right, you should replace every electrolytic cap on the board.
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