N64 Rgb Scart Cable Question

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Skelanimal
Posts: 2
Joined: Thu Mar 19, 2015 4:33 pm

N64 Rgb Scart Cable Question

Post by Skelanimal »

Hey all,

Allow me to start with, "I'm am a mega newbie at this and have predominantly no idea what I am talking about!"

Now that thats out of the way: I have completed adding the etim mod chip into my N64 following his instructional to a tee. Ultimate monkey see, monkey do scenario. I did as he did and I cut the trace to composite video and connected the video to the CS#75 on the mod board. This brings me to my question:

I have no idea what kind of sync this gives me, so I have no idea what cable I should be getting... Am I getting a "composite video" output or a "composite sync" output? Should I be using a csync cable, or a sync-on-luma cable, or a typical snes scart cable?

Here is the guide I followed: http://etim.net.au/n64rgb/instructions.html

Also, I am very sorry if this is in the wrong section. I am very new to this scene and this section *seemed* appropriate.

Thank you very much in advance!
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CkRtech
Posts: 668
Joined: Mon Aug 27, 2012 9:30 pm
Location: Seattle, WA

Re: N64 Rgb Scart Cable Question

Post by CkRtech »

Skelanimal wrote:I did as he did and I cut the trace to composite video and connected the video to the CS#75 on the mod board. This brings me to my question:

I have no idea what kind of sync this gives me, so I have no idea what cable I should be getting... Am I getting a "composite video" output or a "composite sync" output? Should I be using a csync cable, or a sync-on-luma cable, or a typical snes scart cable?
By cutting the trace on the N64 composite video output and using CS#75 (75 ohm output composite sync), you are eliminating composite video. RGB cables that use composite video for sync will still work on the console.

Although the N64 pinout has a dedicated pin for sync, that is a "shared pin" in design in that NTSC runs a sync to that line while PAL runs +12 volts to it. So if you are in PAL land, you would leave the sync pin alone and run dedicated composite sync in place of composite video (or just use composite video). You can do the same thing on an NTSC console if you would like, but there is already a dedicated sync pin available for that.
Skelanimal
Posts: 2
Joined: Thu Mar 19, 2015 4:33 pm

Re: N64 Rgb Scart Cable Question

Post by Skelanimal »

CkRtech wrote:
Skelanimal wrote:I did as he did and I cut the trace to composite video and connected the video to the CS#75 on the mod board. This brings me to my question:

I have no idea what kind of sync this gives me, so I have no idea what cable I should be getting... Am I getting a "composite video" output or a "composite sync" output? Should I be using a csync cable, or a sync-on-luma cable, or a typical snes scart cable?
By cutting the trace on the N64 composite video output and using CS#75 (75 ohm output composite sync), you are eliminating composite video. RGB cables that use composite video for sync will still work on the console.

Although the N64 pinout has a dedicated pin for sync, that is a "shared pin" in design in that NTSC runs a sync to that line while PAL runs +12 volts to it. So if you are in PAL land, you would leave the sync pin alone and run dedicated composite sync in place of composite video (or just use composite video). You can do the same thing on an NTSC console if you would like, but there is already a dedicated sync pin available for that.
Hey, thanks so much for the help! I'm going to leave everything the way it currently is and just shoot for a Scart composite video cable; I'm way too outside my zone of comfort to be doing any further DIY to my system.
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