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  1. fredster

    Asteroids AR boards- Which to repair?

    My asteroids cocktail is far and away the most beloved game I have. It's the only one my wife will let me keep in the house. It's getting a little flaky, and it's due for a rebuild. I brought it back from the dead years ago with just some swap out boards. So I'm going to rebuild the G05...
  2. fredster

    Track Ball optical sensors

    I've got a bunch of "dead" track balls. Anybody have an idea what the optical sensor part number is and where to order them? For like a Happs track ball? Or, if you simply replaced a 'similar' optical sensor on a different make of track ball on both X and Y would it work again?
  3. fredster

    WG25K71XX undocumented mods

    After all your help, I fixed a troublesome 25K7191 that stumped me. So I went back to may stack of part boards hoping to bring another one back from the dead. I have two candidates, but the differences in these boards confuse me. These boards are from an arcade auction buy at a liquidation...
  4. fredster

    Can you check a MOSFET transistor?

    Can you check a MOSFET transistor like a regular transistor with a multimeter diode check? I have this one that may be causing a problem, and I don't have a replacement. It's a Fairchild 11N40. Where I get transistors doesn't have them, you have to buy 1000 of them at .64 apiece to get them.
  5. fredster

    Kortek KT-2914F Horizontal Failure

    Fresh off my inability to fix a vertical collapse of a K7000 series, I've decided to take a shot at a bad Kortek KT-2914F. I had this game for a short time (an auction pickup). It's a Rockin' Rollin' Bowling game from Namco. One day when the kids turned it on (in a switch bank of 3 games)...
  6. fredster

    K7000 Vertical Collapse - Stuck

    Ok, I'm a remove and replace kinda guy, and I have a fair to good success rate, but I'm floundering on this one. This monitor has been going out for a while, and finally the thing collapsed. I put in a new cap kit. so that means I put in a new C50. After that replaced the R91, a new IC2 and...
  7. fredster

    What Games use a Happs Perfect 360?

    What games were designed for the Happs perfect 360's? I have a couple of them I got in an auction deal.
  8. fredster

    Anybody using a CD adapter for Rowi-AMI ?

    I have a R-88 that I fixed recently, but I'm thinking of doing getting a conversion kit to change it to play CD's or even MP3's. Anybody have one of these and what do you think of it? The CD version is pricey, but the HDD drive conversion is even more. Any thoughts?
  9. fredster

    Where are you getting your 45's these days?

    Where are you getting your 45's these days? I don't know if there is any store anywhere that sells new ones. I pick mine up at auctions and flea markets, etc. Junk stores and consignment stores. Anyplace that this group recommends for finding any new vinyl?
  10. fredster

    WTB: Asteroids DAC chip

    I need a dac chip, the AD561J - The smaller one, not the larger one. If you have some, PM me. Thanks!
  11. fredster

    Need a DAC for an Asteroids

    I need the gold DAC, not the longer one. Anybody have some? PM me..
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