NES RGB on a French NES... Problem

[viper1701]

Hi guys, I'm trying to install the NESRGB mod on a french nes using the original Multi AV Out.

I have desuldered the PPU and tested it without any issue.

On my install I'm using the RVB + Sync pins on the AV OUT that are linked to the RVB + V (for Sync) on the NESRGB


I have also cut the trace going to the original pins. Everything is tested on multimeter and all contacts seem good.

The results is that when I turn on the nes I usually get the fist image of my game and then the sound get stuck on a note and the image start to break (in less than a second).

I can clearly see the first image of the game but just for a second. I can't start playing game so it doesn't seem like an image only issue.

I'm clearly complicating my life trying to do this on an original AV Out but I know it's possible.

Here's an image of the board if you're wondering. Wires are attached below with Dupont Pins


Any help would be appreciated.

[mvsfan]

if your sound is also cutting out that probably indicates that your NES isnt running. i would check the connections between your ppu and the snes motherboard for bad solder joints.

[mvsfan]

can you take a pic of the other side of the nes motherboard and the nesrgb? and pull the ppu out and take one.