Main > Monitor/Video Forum
2nd or 3rd attempt to a rgb tv mod. Any advice wellcome.
buttersoft:
I see above that you are switching to the AV channel, so it's probably not that. If the composite video port on the TV works by itself, with a normal composite video source, then sync is going in there. I'm not sure why it's not working from your PC, but is on a regular arcade monitor. You are plugging the sync into the center of the port, not the outside ring which is ground?
Have you checked your modelines to see if sync is set to negative or positive? Arcade OSD might be able to show you that. You want both set to negative for this, i think.
abispac:
--- Quote from: buttersoft on April 21, 2020, 09:13:04 pm ---I see above that you are switching to the AV channel, so it's probably not that. If the composite video port on the TV works by itself, with a normal composite video source, then sync is going in there. I'm not sure why it's not working from your PC, but is on a regular arcade monitor. You are plugging the sync into the center of the port, not the outside ring which is ground?
Have you checked your modelines to see if sync is set to negative or positive? Arcade OSD might be able to show you that. You want both set to negative for this, i think.
--- End quote ---
so the yellow rca wasn't working,I desoldered it and soldered cables directly and the Xbox worked, however it has 3 point, one for video one for ground and one for let in know the osd that video has been connected. However in not sure where to bridge this so the "connect video" message disappear, should I connect this to ground or to video?
buttersoft:
Following the traces on the board and metering stuff is the best way to tell. After that, try each, one at a time?
If the xbox worked, wire up the PC sync the same way, shouldn't need more than that.
abispac:
after closed inspection, my main ground was broken ,so i re-soldered, the video was ok and the detection signal was broken to, so i followed the traces and i soldered the cables at the next point, and i got good signal,ill test the pc next.
abispac:
so i test it out after soldering everything right, and i got a successful rgb tv mod, thanks mr buttersoft,i couldn't do it without you.