Broken+5v supply on Amiga 2000 joystick ports

tomead · 04 March 2018, 19:06

Hi,
I have done something I know i shouldn't do with the amiga powered on plug in a joystick

. I think I have blown a fuse for the ports. Not sure what to check, as I think both ports are linked together on the amiga 2000.

Daedalus · 04 March 2018, 21:31

Plugging in a joystick in itself shouldn't cause damage like that unless they have metal shields on the plugs (which appear to be a rarity). Older mice on the other hand tend to have metal shells, and can easily short out the +5V by inserting them at an angle.

Yep, they do share a common fuse, it should be easy enough to replace. If you can't find a fuse, a 4.7 ohm resistor will do the trick. A 2W resistor will do for the most part - it will burn out if the 5V line is shorted again for more than a moment, but it should be able to take an accidental touch without frying.

tomead · 08 March 2018, 20:08

Managed to replace fuse and all working now so thanks.

04 March 2018, 19:06	#1
tomead tomead Join Date: Feb 2010 Location: Chichester Age: 45 Posts: 71	Broken+5v supply on Amiga 2000 joystick ports Hi, I have done something I know i shouldn't do with the amiga powered on plug in a joystick . I think I have blown a fuse for the ports. Not sure what to check, as I think both ports are linked together on the amiga 2000.

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04 March 2018, 21:31	#2
Daedalus Registered User Join Date: Jun 2009 Location: Dublin, then Glasgow Posts: 6,381	Plugging in a joystick in itself shouldn't cause damage like that unless they have metal shields on the plugs (which appear to be a rarity). Older mice on the other hand tend to have metal shells, and can easily short out the +5V by inserting them at an angle. Yep, they do share a common fuse, it should be easy enough to replace. If you can't find a fuse, a 4.7 ohm resistor will do the trick. A 2W resistor will do for the most part - it will burn out if the 5V line is shorted again for more than a moment, but it should be able to take an accidental touch without frying.

08 March 2018, 20:08	#3
tomead tomead Join Date: Feb 2010 Location: Chichester Age: 45 Posts: 71	Managed to replace fuse and all working now so thanks.

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