I have a Sony Trinitron which on the back has R+G+B+SYNC inputs, and I *think* buttons to switch the RGB inputs to YPbPr.
I have an SCART cable that plugs into the back of my trinitron. I like my SCART setup.
I have acquired an S-VIDEO device.
I am in Toronto, Canada. It is March 2025.
What is the easiest, cheapest way to plug S-VIDEO into my SCART adapter, or to run the S-VIDEO directly into the Trinitron?
John Francis 🦫🇨🇦🍁💪⬆️
in reply to mcc • • •mcc
in reply to John Francis 🦫🇨🇦🍁💪⬆️ • • •John Francis 🦫🇨🇦🍁💪⬆️
in reply to mcc • • •mcc
in reply to John Francis 🦫🇨🇦🍁💪⬆️ • • •Łukasz C. Jokiel
in reply to mcc • • •Jernej Simončič �
in reply to mcc • • •Kyle
in reply to Jernej Simončič � • • •@jernej__s That's right. What's worse is that many TVs would have a SCART pinout with the right pins labeled for S-Video, but no actual support for it.
I don't think there are any external s-video to rgb converters still made. So the answer is either an expensive DIY project or "use composite".
mcc
in reply to Kyle • • •mcc
in reply to mcc • • •Kyle
in reply to mcc • • •@jernej__s Ah, so if the TV can do component the challenge then is going to be converting the Chroma signal back into R-Y and B-Y signals. TDA4650 is a common chip TV sets used to do that as part of their colour decoder circuits, but it needs a colour carrier reference clock etc.
I can't suggest anything ready made
Unus Nemo
in reply to mcc • •@mcc
S-Video to SCART bi-directional converter
ferricoxide
in reply to mcc • • •mcc
in reply to ferricoxide • • •mcc
in reply to mcc • • •Owen Nelson
in reply to mcc • • •mcc
in reply to mcc • • •Ada Worcester 🏳️⚧️
in reply to mcc • • •mcc
in reply to Ada Worcester 🏳️⚧️ • • •Ridley @ WATCH LYCORECO
in reply to mcc • • •Ridley @ WATCH LYCORECO
in reply to Ridley @ WATCH LYCORECO • • •@pikhq imagine taking an RGB cube and rotating it, then squishing it so it fits into a new cube in its new orientation; call one axis Y (make that the one most correlated with brightness), and the other two U and V
Y/C puts U and V together on a single wire (using QAM), while YCbCr gives all 3 axes their own wires
mcc
in reply to Ridley @ WATCH LYCORECO • • •@rcombs @pikhq OK. And… which of these is correct?
- It's possible to merge those two components back again, but not with passive components
- Passive components *can* merge them, but the recipient has to have the funky resistors or whatever that would allow a passive mixer to work
Ridley @ WATCH LYCORECO
in reply to mcc • • •mcc
in reply to Ridley @ WATCH LYCORECO • • •@rcombs @pikhq Thanks again. One more question. What about merging them in a … *unuseful* way.
Like, what if you just plugged chrominance into one of the two components and grounded the other. Would you get colors, just funny incorrect ones?
yaml nitrate
in reply to mcc • • •SCART is sorta like 1980s USB-C, it carries a ton of stuff over the same cable, so it's hard to say whether a particular doodad will do the job without knowing what signal is being output and what signals the display supports.
I dislike the whole SCART thing because of this (and price) and prefer to make the right cables myself.
Jernej Simončič �
in reply to mcc • • •leo vriska
in reply to mcc • • •the Sony YR-421, Extron CD 400, Kramer FC-4044, and Kramer VM-19N are all contemporary professional video products that do similar things but are rare and expensive nowadays (....to be fair, still much cheaper than they probably cost back then)
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