• Captain Fantastic (home version)

    10 Apr | 05
    • in Coin-op • 
    • by FozzTexx

    I ordered the test procedures from Marco. I got a cheaply assembled photocopy manual. The schematics in it are incomplete and have been copied so many times that they are close to impossible to read. First thing I did was check out the power board. Opening it up I found a board that looks very similar to a Midway 8080 style power board. I found the input voltages were fine, but the 5V and 18V out were very low. After checking voltages around the board I found that nothing was getting across the...

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  • Big Event Golf

    25 Mar | 05
    • in Coin-op • 
    • by FozzTexx
  • Strange color to alphanumerics, part II

    13 Mar | 05
    • in Gauntlet • 
    • by FozzTexx

    Found it! It was the RAM chip at 10M. The chip itself was fine, but the trace to pin 16 was intermittent. I got the board with a socket already at that location, and I'm guessing that when the chip was pulled out the board got damaged. I also found that flexing the board would get it to work briefly.

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  • EPROM Problem

    11 Mar | 05
    • in Gauntlet • 
    • by FozzTexx

    Got a board in that when it booted up the attract screen was messed up. Colors of characters aren't quite right Flexing the board around the area of 1A cleared up the problem. Looking at the back of the board I see someone tried to reflow the solder around a bunch of the sockets. I'm going to start ripping them up one at a time and replacing them with new clean ones. Update: Replacing the socket at 2A fixed it.

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  • Where's the power management?

    09 Mar | 05
    • in Computers • 
    • by FozzTexx

    Played a bit with the power management today. Couldn't really it get it to do much that'll be useful. I turned on the ACPI in the kernel and turned off APM and rebuilt/rebooted. My power button stopped doing an immediate shutdown and I could cat a file and see everytime I pushed it, which was neat. When I tried to put the computer into S3 it went to sleep, but didn't quite want to wake up. Had problems with both the video and the USB keyboard/mouse. I also had no luck at all finding...

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