Re: RGB to Component video converter (SCART)

[Roger Johnstone <roger@roger.geek.nz.removethisbit>]

In <FI-dnWNOJLMcl9zbnZ2dnUVZ_qOpnZ2d@comcast.com> Michael J. Mahon wrote:
> mdj wrote:
>> On May 7, 8:27 pm, "Michael J. Mahon" <mjma...@aol.com> wrote:
>> 
>> 
>>>OK, my apologies...I thought all those RCA jacks were *outputs*!
>>>After all, it does say RGB *to* component, and SCART is RGB, right?
>>>
>>>And it also says:
>>>
>>>* BRAND NEW; Scart (male) to Component (female) Adapter.
>>>* For 'RGB' scart video signal to high quality 'Y/U/V' component 
>>>video
>>>   signal.
>>>* Signal output from DVD players, Freeview, Sky or Sky+ set-top boxes
>>>   to Component Video.
>>>
>>>That sure *sounds* like it accepts an RGB signal on the SCART side
>>>and outputs a Component signal on the RCA side.
>> 
>> 
>> It could be either :-)
>> 
>> Most SCART equipped televisions/displays have a pair of connectors -
>> one is convention SCART RGB, the other accepts component or s-video.
> 
> Great.  So SCART is synonymous with "a standard connector with any
> signals we feel like connecting to it".  ;-(

The SCART standard dates back to the 1970s. We're lucky it had RGB! A 
later extension added s-video as an option instead of RGB, but YPbPr is 
still not part of the official standard. A lot of modern equipment that 
uses SCART connectors can be set to send either YPbPr or RGB over the 
RGB pins. I suspect the adapter described above is just a simple plug 
converter, but that extra connector still has me confused. One 
possibility is that it's the synchronisation signal. YPbPr component 
carries the sync on the Y line, but RGB component uses a separate sync 
line.

-- 
* Roger Johnstone, Invercargill, New Zealand -> http://roger.geek.nz
* PS/2 Mouse Adapter for vintage Apple II or Mac
* SCART RGB video cable for Apple IIGS