Re: Commodore 65 and DIN8 cable

Date: Thu, 3 Mar 2016 14:25:03 +0100
Message-Id: <>
> On 2016-03-03, at 14:10, Michał Pleban <> wrote:
> Hello!
> wrote:
>> You'd need to remove the filters first. Then you could jumper the signal over. But if the U1 is removable then you should be able to make the lines "open" and measure thoroughly all of them.
> I was feeling adventurous today so I unsoldered the filter.
> Unfortunately this did not help :-(

Argh... Is the U1 not socketed?! If it is socketed - remove it, put a square wave on one end and your scope on the other end (end of cable?) - check all the lines one by one looking for suspicious, noticeable differences between those, at various higher frequencies. If you don't have a sqare source, measure the lines' R/Cs, looking for the same.


       Message was sent through the cbm-hackers mailing list
Received on 2016-03-03 14:02:05

Archive generated by hypermail 2.2.0.