Hi Shmuppers!, New here, I thought this would be a good place to ask about something I've been really frustrating myself with:
How to assemble one of these puppies ^
This one was built by a forum member here, RGB32E. I would be over the moon if anyone could tell me how to correctly ground the separate L and R audio cables correctly. I'm really not interested in taking signal from the scart end, as running alongside the video is what causes the interference buzzing which I am trying to eliminate altogether but still have that nice crisp RGB video output.
If anyone knows how to do the same with a Wii cable too that would just be bonus.
Last edited by Alnitak on Sun Jan 26, 2014 4:32 pm, edited 1 time in total.
darcagn wrote:But the audio is running alongside the video with that cable...
What he means is that he doesn't want to tap the audio from the SCART connector, he wants to tap it from the multiout and have it go through entirely separate cables.
darcagn wrote:But the audio is running alongside the video with that cable...
What he means is that he doesn't want to tap the audio from the SCART connector, he wants to tap it from the multiout and have it go through entirely separate cables.
Right, but in the example cable, the audio is running right alongside the video in the same cable. It doesn't matter if the signal reaches the SCART connector first and then comes out as RCA jacks, or if it comes out as RCA jacks before the signal arrives at the SCART connector; either way, the audio and video ran alongside each other for the length of the cable.
darcagn wrote:But the audio is running alongside the video with that cable...
What he means is that he doesn't want to tap the audio from the SCART connector, he wants to tap it from the multi-out and have it go through entirely separate cables.
Right, but in the example cable, the audio is running right alongside the video in the same cable. It doesn't matter if the signal reaches the SCART connector first and then comes out as RCA jacks, or if it comes out as RCA jacks before the signal arrives at the SCART connector; either way, the audio and video ran alongside each other for the length of the cable.
Correct, but each audio are individually insulated and individually grounded right from the multi out. Personally I would leave them out right from the multi out connector, but the wiring would be the same.
Wouldn't wiring from the SCART connector still carry over all of the noisy interference from running the audio along with video?
I'm told ground is pins 5 and 6 on the multi-out, would I just twist the two audio ground shielding together and solder on to one or both grounds? It seems like this should be very simple if I just knew where to solder.
Solder to both 5 and 6 on the multi-av connector for both L & R audio ground. Use 11 and 12 for left and right signal, respectively.
However you wish to physically connect everything is up to you, but all four points you have mentioned (Left Ground, Right Ground, Pin 5 and Pin 6) should be connected to each other.
Alnitak wrote:Hi Shmuppers!, New here, I thought this would be a good place to ask about something I've been really frustrating myself with:
How to assemble one of these puppies ^
This is a SHVC-010 cable I "customized". R/G/B/Cv/L/R are all mini coax cables under the main cable jacket, and not the multi-conductors under a single shield like sold by RGC/RGA. I just stripped the outer jacket, put white and red shrink tubing on the respective audio coax cables as they are pretty small, and terminated with RCA jacks. The other mini coaxes where heat shrink tubed together and terminated with a 21 pin connector (RGB21/JP) with polymer 220uF caps.
Alnitak wrote:If anyone knows how to do the same with a Wii cable too that would just be bonus.
Wii cables have audio breakouts. I haven't decided to shorten any of the official D-Terminal or Component cables I've picked up on the cheap, but they should all be individual coaxes under a jacket.
What a gent, thanks! So it's literally just broken out, I thought you had ran audio up to both scart and RCA and obscurely grounded the two at the multi out to different pins or something. I'll give this a shot, cheers!
You're right about the wii cables, but they could do with a little shortening and breaking out to RCA from the multi-out instead of halfway up. There is a noticeable audio buzz if you like to use headphones. Nowhere near as bad as taking audio from the scart end though.
RGB32E wrote:
This is a SHVC-010 cable I "customized". R/G/B/Cv/L/R are all mini coax cables under the main cable jacket, and not the multi-conductors under a single shield like sold by RGC/RGA. I just stripped the outer jacket, put white and red shrink tubing on the respective audio coax cables as they are pretty small, and terminated with RCA jacks. The other mini coaxes where heat shrink tubed together and terminated with a 21 pin connector (RGB21/JP) with polymer 220uF caps.
I take it you used coax for the additional shielding? I recently added audio-out cables to a NES Scart cable I got from RGC, but I get a lot of noise out of using an old RCA cable donor.
I was thinking I was getting interference within the SCART connector, but it just might be my cheapy audio wires.
