[Coco] Luis, your RGB2VGA board is terrific !!!

Gustavo Ranaur Schoenaker ranaur at ranaur.net
Sat Jun 13 10:24:32 EDT 2015


Yes, it's true. But its better safe than sorry. :-)

On Sat, Jun 13, 2015 at 9:45 AM, Steven Hirsch <snhirsch at gmail.com> wrote:

> On Fri, 12 Jun 2015, Gustavo Ranaur Schoenaker wrote:
>
>  The best way to solder the connectors to the DE-0 board is to solder them
>> with the board connected. Yes, I know you shouldn't do this. But we are
>> professionals, right?:-)
>>
>> Connect the board to both 20pin double headers. Insert the header to the
>> RGB2VGA board.
>>
>> When everything is right, solder the edge pins with a low temperature iron
>> (250F or 300F). After soldering 4 pins on each header, remove the board
>> slow and carefully using a screwdriver to pry.
>>
>> Raise the temperature to a regular 350F and solder the rest. If you want,
>> reheat the edge pins when the other pins are soldered.
>>
>> My second and third boards I made this way, and they fit perfectly on the
>> Altera. I needed to resolder my first board do make it work.
>>
>
> Seconded.  I actually soldered all the pins with the units together.
> Unless you are incredibly careless (or using a blowtorch) there won't be
> enough heat transfer to the DE0 to cause any problems.  But there will be
> enough to prevent any melting or deformation of the headers.
>
> Remember, the DE0 is reflowed in a 600+ degree oven during manufacture.
> You're not going to hurt it that easily.
>
> Steve
>
>
> --
>
> --
> Coco mailing list
> Coco at maltedmedia.com
> https://pairlist5.pair.net/mailman/listinfo/coco
>


More information about the Coco mailing list