View Single Post
  #29  
Old 02-09-2026, 05:37 PM
TinCanAlley's Avatar
TinCanAlley TinCanAlley is offline
VideoKarma Member
 
Join Date: Sep 2008
Location: So Cal, CA
Posts: 1,020
Quote:
Originally Posted by old_tv_nut View Post
"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).
__________________
Pioneer SX-1080, Pioneer PL-115D, Pioneer CT-F9191, Pioneer RG-1, Wollensak 8050A, Akai 4000DS MkII, Pioneer CS-05 & Polk 1.2TL

Denon 5803A, Pioneer DVL-700, Pioneer CT-W603RS, Toshiba HD-A3, D-Link DSM-520, Dish VIP-722, Polk 1.2TL, CSi5, LS/fx, RT-800 and PSW-650
Reply With Quote