Help Understanding ACC

[TinCanAlley]

Originally Posted by old_tv_nut

"gets rid of all the other parts at the bottom and leaves only full bars top to bottom"

does not sound like keyed rainbow to me.

Sounds like primary and secondary bars (like SMPTE bars):
white, yellow, cyan, green, magenta, red, blue, black.

Is this what you had before "getting rid of the parts on the bottom?"

https://en.wikipedia.org/wiki/SMPTE_...Color_Bars.svg

The bottom was a bit simpler than that, but yes. So this isn't a keyed rainbow pattern, darn. I found a generator on ebay that does the keyed rainbow, but not sure I want to add another generator to my collection for one purpose. I guess if it works, I can get rid of my Leader unit.

On another note, my tint is stuck in the poor control now. When it was working properly, it went from overly magenta, to more neutral and then to overly green. Each of those took about 1/3 of the pot travel, so to get from magenta to neutral, I had to move it at least 1/3 from fully counter clockwise. Now from fully counter clockwise it is magenta, then only a slight turn to neutral and another slight turn to green and the rest of the turn gets really green. The neutral section doesn't fully get rid of magenta or green, it's the best I can do to balance them.

I think I need to remove the subcarrier module and lift a leg of each capacitor and resistor for proper measurements. Then the same for the chroma module. Not sure about the coils and ICs on the boards (how to test or if they're even play a role in the tint adjustment).