Re: Interesting build pictures
- Tom Short
- 2015-04-15 @ 19:32
Sorry for the early message. Here's the link to the build pictures:
Here's a Reddit thread on that:
On Wed, Apr 15, 2015 at 3:31 PM, Tom Short <firstname.lastname@example.org> wrote:
> See here for some interesting Atreus build pictures:
> On Wed, Apr 8, 2015 at 2:56 AM, Phil Hagelberg <email@example.com> wrote:
>> JD Carpenter <firstname.lastname@example.org> writes:
>> > If it's an entire column, it's either the first diode in that column, or
>> > more likely, the header pin on the controller that connects it to the
>> > column on the PCB.
>> The diodes are actually laid out in parallel, so a single diode failing
>> would only cause a single switch to go out, not a column.
>> You can see here that the far right column is connected by a trace on
>> the back across over to the middle...
>> Then (remember the front side is flipped, so look at the left for this
>> one) through a via to the front side and to the 4th pin down on the
>> controller's left side:
>> If you're lucky, the bad joint is on the exposed side of the PCB. This
>> is easy to fix; just take your iron to that pin and re-flow.
>> There's a chance that the bad joint is on the microcontroller
>> itself. This is a much bigger hassle to repair as it involves
>> desoldering the switches so you can get at the controller.
>> Give it a try re-flowing the pin on the exposed side; hopefully that
>> does the trick. You can also try connecting that 4th pin to any of the
>> bottom 4 pins on that side of the microcontroller with a wire. If that
>> works, then the problem shouldn't require removing the switches to
>> fix. If not, let me know and I can walk you through the steps of fixing
>> it on the other side.
Re: [atreus] Re: Interesting build pictures
- Phil Hagelberg
- 2015-04-16 @ 06:34
Tom Short <email@example.com> writes:
> Sorry for the early message. Here's the link to the build pictures:
Cool! Always fun to see how people put them together.