I have followed several threads on how to do this and am pretty familiar with the theory and procedure of upgrading NTSC TVs to RGB, but have a few questions... 1) The incoming signal will require 75Ω termination, as my cable provides coupling capacitors but not resistors. Is this a pretty safe bet for various consoles/RGB sources? Or would RGB 75Ω center trim pots be a better solution for fine color adjustments between systems? 2) The SCART standard, I'm assuming, requires 5v on the switch pin and ~1.6v on the blanking pin (given a 180Ω resistor in series with a 5v source). Most guides I have read suggest sending full 5v to the jungle IC's blanking pin, but I have seen one case where 0.9v was suggested using the IC's datasheet. My TV uses a generic Chinese chassis with a Toshiba chip and a datasheet is not available. The only thing I have is the pinout in the TV's service manual, which does not specify input voltage for this pin. 3) Should the horizontal alignment (H-AFC) be an issue? The TV is very basic ($80 at Kmart) and does not have a comb filter or any special postprocessing effects that would add to the composite video delay. If I need make adjustments to the alignment what voltage should I be sending to this pin?
