Re: N8-more component changes

[nbreeden <nbre...@live.com>]

I agree that 10K would be a better choice for R34/R34.

It might make more sence to just replace C20 with a trimmer cap
(20-40pF perhaps)? By going in parallel you can only add capacitance,
if the crystal is slow you want less capacitance, if it is fast you
want more.

-Neil

> 1. Change resistors R34 and R35 to 10k.  1k is too low and loads down
> the 8255 outputs too much.
> 2. Add a trimmer capacitor to pin 39 of the TMS9918 (in parallel with
> C20).  Probably a maximum value of around 40pF.  This is to set the
> 10.7MHz osc on frequency and give a better video quality.