[Coco] VDG weirdness

[Phill Harvey-Smith]

On 12/10/2015 15:47, Zippster wrote:
> Hi Phill,
>
> Any schematics?
>
> I don’t know what all is on the board, but is it adequately decoupled?

Basically it's a bunch of LM319s and an XC9536XL CPLD, there is an LS 
245 in the data path, but that's perminently enabled, the Atom needed 
that latch the Dragon & CoCo don't of course.

And yeah I've pretty much got one 100nf for every vcc/gnd pair, plus the 
2 transistor amplifier on the Y signal has an L/C filter on it.

I'll post a schematic from home later tonight....

Cheers.

Phill.