16 October 2021, 17:47 | #1 |
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Location: Tokyo
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3000 fuse on mouse/joy port
I plugged a naughty (serial) cable into the joystick port and my Mindlight7 tonight on my 3000, and now I've lost +5V on both mouse and joy ports, so on the 3000 I assume there is a shared fuse? Can anyone let me know where it is on the MB?
thanks in advance, RDP |
16 October 2021, 21:22 | #2 |
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You're right that both mouse/joystick ports have a shared fuse on the 5v pin. It's F400 according to the schematics. Depending on the version of your motherboard, the location varies a bit but generally it's near the two ports but positioned a little closer to the back of the machine than either port. There is also a ferrite bead in series with the fuse that could have blown as well (FB400) - worth checking that for continuity too.
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16 October 2021, 23:13 | #3 |
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Thank you very much. This will be going to my super-tech, but just wanted to get a bit of research done so he didn't have to do absolutely everything....
thanks! |
18 October 2021, 11:48 | #4 |
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Location: Gothenburg, Sweden
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Blew that "fuse" (looks more like a resistor) on my A3000 some time ago, soldered a holder in place and put in one of those glass fuses so I can easily swap it if it happens again.
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18 October 2021, 16:30 | #5 |
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That, is a very good idea!!!!!
RDP |
18 October 2021, 17:08 | #6 |
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Location: East Kilbride, Scotland
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I replaced mine with a polyfuse.
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20 October 2021, 15:31 | #7 |
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Location: Tokyo
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Wow, never heard of a Polyfuse before!
RDP |
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