Adding Composite Video to a Famicom

#1

Post by todsacerdoti » Fri, Dec 18, 2020, 3:54 AM UTC

Adding Composite Video to a Famicom
leadedsolder.com

Re: Adding Composite Video to a Famicom

#2

Post by pix64 » Fri, Dec 18, 2020, 5:10 AM UTC

Pretty certain the TRRS image is incorrect. Tip is always left audio.

Re: Adding Composite Video to a Famicom

#3

Post by ruslanbogan » Fri, Dec 18, 2020, 5:49 AM UTC

I wonder if the extra decoupling caps for the CPU and PPU are even necessary?

I get that good decoupling is important but these things worked fine as designed for the decades they were being manufactured.

Re: Adding Composite Video to a Famicom

#4

Post by aidenn0 » Fri, Dec 18, 2020, 7:31 AM UTC

pix64 wrote: post #2

Pretty certain the TRRS image is incorrect. Tip is always left audio.

That is absolutely not true. TFA links to [1] and while left audio is the most common, there are all sorts of combinations seen in the wild.

1: https://pinoutguide.com/Audio-Video-Hardware/av_jack_pinout....

Re: Adding Composite Video to a Famicom

#5

Post by pix64 » Thu, Dec 31, 2020, 7:21 AM UTC

aidenn0 wrote: post #4

pix64 wrote: post #2

Pretty certain the TRRS image is incorrect. Tip is always left audio.

That is absolutely not true. TFA links to [1] and while left audio is the most common, there are all sorts of combinations seen in the wild. 1: https://pinoutguide.com/Audio-Video-Hardware/av_jack_pinout....

I don't seem to be coming across any pinouts where tip is ground. I'm still convinced the image is incorrect.