I haven't done NESRGB in a top loader (only an AV famicom) but I'll try to answer as best I can here...
crowsnest wrote:
Jumper question: The instructions say to short J3 to "Provide Power to the NESRGB" and jumper J5 for NTSC. But this page has totally different information, (
https://etim.net.au/nesrgb/NESRGB-Pinout.pdf ) saying to jump J6 for csync and other jumpers for selecting PPU type and selecting NTSC or PAL on different jumpers. I am just confused and want to get the jumpers right plus I want to use csync as well.
The information in your two links is not different? J8 toggles "TTL" csync, if you are using a straight wire for csync, it should be shorted. J3 tells the NESRGB that power is to be taken from the PPU connection and not from an additional power board.. the top loader has a similar layout to the AV Famicom so should be fine to do this. J5 is shorted as part of the NTSC configuration.
crowsnest wrote:
Audio question: I skimmed the NESRGB thread and saw that people have audio issues and need to wire up resistors and capacitors to the cpu or cardtridge pins and what-not for audio. There is a single "A" pad on the NESRGB motherboard, do I wire that up with a ground for the 3.5mm jack or do I need to do something else?
Most of what you've seen is for wiring up
expansion audio, which is where additional audio is generated on the cartridge and mixed into the output. Regular audio comes from the CPU, pins 1 and 2. These need to be connected to the A and B pads on the NESRGB, and mono audio comes from the O (output) pad. I'm not experienced with your output jack but I imagine you need to wire up O to both L and R channels of the jack, and to GND of course.
crowsnest wrote:
Output question: Can I wire up S-video and RGB-DIN connector both and run them at the same time? I was only planning on wiring up the S-Video for if I ever had to use it for some reason and was wondering the limitations. Also the little soldering board that the DIN goes into has a "V" where I would assume the CSync should go to and not "composite video" (the "V" on the NESRGB mobo). Do they both output at the same time, and is doing that safe? In case I used S-Video for capture or something.
I feel like this should work fine. Maybe someone else can chime in here though..