[Coco] CoCo 1 colors off

[Rogelio Perea]

It is NTSC using the Color Bars program provided in the CoCo User Manual,
using a standard TV as a monitor and indeed no matter how the
hue/tint/brightness controls are adjusted the noted colors are not being
displayed correctly - used the TV with an MC-10 with correct output, it is
the CoCo 1 (26-3001 rev D).

Found the Sams Photofacts for the next model (26-3002), the docs for board
E are close enough to provide a guide on what to check where, maybe some
adjustment to a clock signal that could be creating these off-hue colors on
screen.


-- RP