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Old 07 July 2019, 21:28   #1
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auto fire - no joystick.

Can anyone help suggest where to look?
I have an Amiga 500 rev 6 that fires the joystick with nothing plugged in.
I've tried swapping the CIA chip.
Unplugged memory etc, still fires slowly.
So no joysticks plugged in, load a game and its like someone is pressing the fire button over and over.

Any ideas?

Last edited by UKShark; 07 July 2019 at 23:39.
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Old 08 July 2019, 21:31   #2
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I would check that pin 6 on the joystick port isn't shorted to ground first.
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Old 09 July 2019, 12:17   #3
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Check the pullup resistors as well. Are you able to take a voltage reading on the fire button pin?
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Old 09 July 2019, 15:46   #4
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A friend is sending me the schematic link, so ill check these on the weekend. Thanks for the directions.
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