Re: Commodore 65 and DIN8 cable

Date: Tue, 1 Mar 2016 15:40:00 +0100
Message-Id: <>
> On 2016-03-01, at 15:22, Michał Pleban <> wrote:
> Hello!
> Michał Pleban wrote:
>> I started a project to re-create the 1565 external floppy for the
>> Commodore 65. The floppy is supposed to be attached to the computer via
>> a mini-DIN8 cable.
>> So I purchased a cable and stuck it into the floppy port of the computer
>> (of course I had to solder a mini-DIN8 connector there first). The
>> internal floppy stopped working. When I remove the cable, the floppy
>> works again. Hmm.
> Update: I connected the actual floppy drive to the cable and it still
> does not work. Even with a 30 cm cable disk reads are extremely flaky,
> from both the internal and external drive. So it is not a problem of
> termination, and the fact that it exhibits itself on both drives means
> that it's not a problem of the drive either. I suspect now two things:
> (a) the disk controller in the C65 is broken (which would be strange
> since it works on Bo's C65) or (b) maybe I did something wrong when
> soldering the DIN8 connector. I think I need to open the computer again
> and resolder the connector to see if it changes anything.

Obviously I can't check this myself ;-) but if there are any EMI filtering elements on the signal's way out, those can be sometimes causing similar problems to what you describe.


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Received on 2016-03-01 15:02:57

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