nesdev.org

Sorry if I'm being paranoid at this point, but about what year was your TV made? I'm wondering if the combination chip is typically found in newer CRTs.

Aren't operation amplifiers used for increasing voltage? Sounds like by several magnitudes though, which obviously isn't ideal. And I didn't think a signal could have an impedance value... Unless you mean to say that, for example, a 6V 3Ω signal is a 6V 2A one. Also, what TV do you have? 8Vpp just s...

Oh, okay. None of the other mods should have worked then either though. I do feel that something for changing the magnitude of the voltage would be external though anyway; you said JAMMA is 5Vpp, but what's SCART RGB? Edit: looks like SCART RGB is 1Vpp. I guess the mod showcased in the 8-Bit Guy vid...

This CD4053B data sheet seems to suggest that it will take analog signals of up to 20V though: http://www.ti.com/product/CD4053B

I saw about 4 other significantly less popular videos that either did the same thing or just forgot about mixing the signal altogether and removed the OSD. Obviously it doesn't matter much either way.

Wow, you're right; it even has the exact number of inputs and outputs too. I'm surprised seemingly no one has done this given the IC is priced at less than a dollar.

After going back at this with more knowledge, I'm pretty sure that initial schematic is wrong in about 100 different ways. What determines if current flows through the NMOS transistor is not just voltage is applied at the gate, but that the gate voltage is higher than the source, which is why it's n...

From the looks of it, I'm not even sure they try and reproduce the terminals. Here's an aftermarket connector with little prongs for soldering: https://www.ebay.com/itm/173675679774 I think I'll buy this and wire it to some female RCA cable connectors. Then I won't have to gamble with the quality of...

I've seen a lot of documents that give the pinout for the video connector, but none actually say what type of physical pins are being used. Is it known if they're proprietary, or can they be ordered from somewhere like Digi-Key? The wires for one of my SNES / N64 / GC video cables are in pretty bad ...

Wait, I think I get it? Does no current actually go through blanking on the jungle chip?

I'm not sure I get the question, because I'm not sure I know what "pulling low" means... If you mean when does the jungle chip get logic 0, it would be the same as normal for when the switch is off, and never when the switch is on.

If the switch is open, for blanking, the jungle chip would pull it down, and if the switch is closed, the hex inverter would pull it down (now I remembered why I wired the hex inverter the way I did..). Or at least that's what I expect / hope...

Thanks; that's what I thought. Just comparing a MIDI file to where the composition data is in an SPC file I was looking at via a hex editor showed that this was way more than likely not the case. One could probably design a converter though, I'd think. Problem is you'd either need to make your progr...

Hope I'm not bothering anyone from obsessing about this now. :lol: I had showed a video a while back ago where a CRT TV was modded to accept RGB input by tapping into the lines going to the jungle IC, but would have the side effect of blending the onscreen display with the image rather than overwrit...

So I saw on superfamicom.org that a huge list of SNES games share a common sound driver and music format created by Nintendo. However, the article https://wiki.superfamicom.org/nintendo-music-format-(n-spc) doesn't appear to be translated very well, which is why I'm asking about this: Many games are...