Snes Mini/ N64 RGB CSYNC

So I wanted to mod both my snes mini and N64 today with RGB and install CSYNC. I bought this SNES CYSNC cable from retro console accessories http://m.ebay.com/itm/Super-Nintend...HIELD-GROUNDED-cable-/201284360714?nav=SEARCH

I am using the RGB AMP from retrorgb on both systems. So just to make sure I will want to install CSYNC as shown here http://retrorgb.com/snescsync.html

And then do the RGB mod for the mini as shown here
http://retrorgb.com/snesminirgb.html

Then for the N64 do the CYSNC as shown here
http://retrorgb.com/n64cablecsync.html

Followed by the RGB N64 mod as shown here
http://retrorgb.com/n64rgbmod.html

If I follow these steps, the cord I bought will work for these systems correct? Pretty sure it will, but wanted some expert opinions before I start soldering wires.

 

How are you going to connect it it your TV? Through an XRGB? I feel like that's a lot to spend on cable, I bought a cheap one. I'm no expert but taking a look here may help.

 

What revision is your N64? If it is the same one as mine (NUS-CPU-05), a revision after NUS-CPU-05, or a PAL console, you will need Tim Worthington's N64RGB board. There is also an upcoming HDMI mod for the N64 which will give you the best quality possible on the system. It will look better than RGBS.

 

Yes I am connecting through an XRGB Mini

 

My board revision is NUS-CPU-03. Retro RGB says:

"The NUS-CPU-03 revisions I've tried, require you to get sync from pin 14 of the VDC-NUS chip. I tried wiring that pin directly to pin 3 of the multi-out, but it wouldn't work on any display I tried. I then added a 680k resistor (just like when building an LM1881 sync stripper) and everything seemed to work perfectly! You could either run the sync wire around the side of the motherboard, or through it. I used a thin piece of wrapping wire and fed it through the closest hole in the board (don't solder the wire to the hole, just run it through). Also, you can put the resistor anywhere you'd like, but I found it easiest to solder it directly to the chip"

 

If you don't have a SCART to XRGB mini adapter (that same seller usually sells one), that cable won't work. You will need the JP-21 version of that cable to use it with the JP-21 to XRGB mini adapter the mini came with. The seller should have the JP-21 versions in stock.

If you do have a SCART to XRGB mini adapter, then that cable will work fine.

EDIT: Didn't see your last post until after I posted this one. The circuit should work but I don't know too much about the N64 RGBS mod since mine is a NUS-CPU-05.

 

All of my cables are scart and I also have the adaptor for the xrgb mini to run them.

 

Then that cable will work fine. I have the Composite video version (meant to buy the C-Sync version) and it works great.

 

The cable I have IS C-Sync and NOT composite though....So it will work still, right?

 

Yes it will work as long as you wire up C-Sync to pin 3 as described in the links above. I was just saying that I have the same cable from the seller but mine is the composite video as sync version. Sorry for any confusion.

 

Thank you for clarifying for me. I will do the mods for both systems today and let everyone know how it goes. Since getting the XRGB Mini I played on composite through it for awhile. Then when I bought the RGB cables for it, I switched to only Genesis since I needed no mod. I wanna see how good the other systems look. Doesn't seem like these mods will take too long.

 

The SNES Mini will (hopefully) look fantastic. Let me know if you need to set the SYNC Level on it for it to get a signal, because on mine, I do. I don't have csync wired up though.

 

You can get C-Sync very easy on a Revision 3 N64, by cutting the trace from Pin 9, and then solder a wire from pin 9 to pin 3 (See picture).
I have done this myself. But make sure you cut that trace!!! If not cut properly the N64 will get toasted.

 

So the SNES Mini mod went great, but I have 1 problem. My the scart connector is like loose connecting to the adaptor, it kept wanting to pull apart. My sega scart is snug when connected to the adaptor. Does anyone know why this is, and how to fix the issue?

Never mind I fixed it, just had to open up the cable and play around with it a little and reattach the cover piece. Connects fine now

 

If I'm interpreting this picture correctly, you need to connect pin 9 to pin 3. That doesn't give you C-Sync at all. It gives you composite video over the C-Sync/+12V pin. You need to get C-Sync from the video chip in order to use it.

 

Well, It worked for me on a rev 3 Japanese N64. Did a THS7314 chip mod, but didn't have C-Sync untill I made this mod on it as well

 

Composite video is not C-Sync. C-Sync is a pure sync signal. It does not contain anything other than the sync information. C-Sync is just H-Sync and V-Sync combined into one signal. Composite Video is all of the video information in one messy signal. The mod you did causes the N64 to send the Composite video signal over the C-Sync/+12V pin. It does not give you C-Sync. You need a sync stripper to get C-Sync out of composite video or get the real C-Sync signal from the video chip.

 

I'm no expert, but I know that I had sync issues before completing that mod, and haven't had it since I did it.
If it isn't a C-sync mod, what is it then?
Cause it did fix all of my picture-sync issues

This is the guide btw:

http://www.mmmonkey.co.uk/console/nintendo/rgbntsc.htm#link83

 

That mod just runs the composite video signal over the C-Sync line. It does not give you C-Sync. The guide is designed for using the official PAL GameCube RGB SCART cable on an NTSC system. It doesn't make any sense to do it like that since the PAL cable supports composite video. All you would need to do in order to use it on an RGB-modded NTSC N64 is remove the capacitor from pin 20 in the SCART plug and disconnect the wire on pin 8 of the SCART plug. That is for using composite video as sync though. There are other sync options.

RGBS, the type of RGB in SCART/JP-21 cables, can use one of three sync signals:
Composite Video (worst quality)
Luma (the Y part of Y/C (S-Video); good quality)
Composite Sync (C-Sync; best quality)

You don't need any mods to use Composite Video or Luna as sync signals. You just need a SCART cable wired for them. C-Sync, however, requires a mod like this one: http://retrorgb.com/n64cablecsync.html

 

Well okay, I was doing this mod some time ago.
And everything worked well, until I hooked up the system, the newly RGB-modded picture would jump around the screen.
I was told by a fellow assemblergames member, that I should try that mod I posted.
I did and it worked, however since reading your reply's in this thread I have a question.
Would I get better picture/quality if I performed the 680K resistor mod ?
Or is it not worth the trouble?