[Coco] Last video I promise... :)

Luis Antoniosi (CoCoDemus) retrocanada76 at gmail.com
Sat Nov 29 19:18:30 EST 2014


Use a socket.


Luis Felipe Antoniosi



On Sat, Nov 29, 2014 at 6:53 PM, Steven Hirsch <snhirsch at gmail.com> wrote:

> On Sat, 29 Nov 2014, Luis Antoniosi (CoCoDemus) wrote:
>
>  well 24 inches is a pretty long cable. I'm using 12 inches maximum.
>>
>> Did you check all the groundings on the board ? check the coco3 pins 1&2
>> and also altera's pins GIPO0 12 & 30.
>>
>> in my prototype the lm1881 is detachable, so it's never plugged when I use
>> the coco3.
>>
>> Try assembling another board without the lm1881, 680K, and the 2 caps, or
>> remove them for your current board.
>>
>
> That gives me an idea:  I will try removing the LM1881 before cold power
> up and see if the initial waviness goes away.
>
>
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