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This solution allows me to slow the drive down OK but I read elsewhere that sometimes it is necessary to speed the drive up! How is this achieved?
I don't have a schematic for the 1571 "drive board" so I don't know what the 2 resistors and pot actually do - however I am guessing they are in parallel with another resistor thus reducing the voltage to the motor (guess). So how do I go about speeding the drive up? Is there a schematic for the drive board?
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You don't need to change the speed back - ever. You could put a switch between the center pot lead and the board though. That should disable it.
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I just completed installing 2 SC+ in my 1571's . When I go to check speed it loads and fails (Utilities 0 ) on both set of disks.
could any one recommend a good prg to check with?
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You mean the disk itself fails to load? I test every disk before they are shipped, so I would be surprised to find that two sets of disks were bad. You can download the .d64 images and create your own disks. There is nothing else that will give you accurate drive speed.
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All other parts of the disk load and work fine, but when I load the speed check, the screen resets and I get a overflow error over and over...Thanks for the idea I will download the .d64 tomorrow...
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Hmmm... I will look at the master disks.
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I downloaded the v6 d64 files and had the same result. I found a older version v5 and that speed check worked so I should be good to go.. Thanks.
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I am looking into the d64 issue. This is how we actually released the disks back in the day, but I really need to fix that.
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I have the same problem with the Speed test. Something seems to load for a while then either I get the continuous overflow message or the C64 locks up. I am using PAL hardware, could that have anything to do with it?
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No, PAL doesn't matter because the disk drives do not rely on 50/60 Hz.
I recently fixed the disks that I am shipping, so I need to make new d64's.
