Hi Bryan - Quick question for you or anyone else who's installed a UAV into a 2600. I finally got around to installing one of my older Rev C boards into one of my 4-Switch Woody models (2600A, Rev 14 board). I've triple-checked the wiring and it sort of works, but the colors all appear off and the contrast/brightness of the image don't seem right now matter how I adjust the color pot or the TV - specifically, I don't seem to get any true blacks - everything that's supposed to be black has a sort of color cast. Are there any steps specific to this type of installation, or any quirks I may have missed? I'm picking up signals right off the shoulders of the TIA and again, I've verified all the connections to the UAV. Here are some examples of what I'm seeing.
Black background isn't black
Colors washed out and ghosts hardly visible at all
Pac-Man himself is very dark, almost muddy
And finally, the background should be black and again, is not
This is Composite into a 2003 Toshiba CRT that normally looks fantastic, even with the craptastic stock RF on my 7800.
I did the mod on this machine believing it had a bad RF modulator but now I'm thinking it has a bad TIA. Any suggestions, anyone?
EDITED TO ADD: I dug back through all the old posts I can find on 2600 installs, I see one where Bryan showed a similar installation but in a Rev 17 board rather than 14. I noted several lifted components from the bank of small resistors/caps next to the TIA. I didn't notice these changes before - can anyone advise which of these small components should be lifted from my Rev 14 board? If any?