Re: Trying to fix an Apple II+ : blue & orange colors "sparkle" & cap with only one connection

[eccofonic <eccofonic@charter.net>]

On Sun, 20 Jan 2013 13:23:31 -0600, eccofonic <eccofonic@charter.net>
wrote:

>Part Two:
>
>When the computer is turned on from a cold state... if it is booted
>immediately to a graphic containing blue & orange colors... these
>colors are purple and green instead.
>
>Gradually, these areas start to "sparkle"... imagine hundreds of  dots
>randomly flickering brighter...
>
>And the blue and the orange colors "fade" in.
>
>But the "sparkles" remain, mostly in the orange areas.

For anyone else that may ever have this problem...

Turns out it was a malfunctioning 74LS174 chip located at B8.

Replaced it with an HC version (74HC174) and the problem went away.