In-depth info about Apple IIc's video circuit operation?

[petri@mit.bme.hu (Petri Andras)]

Would someone direct me towards a source of information about the aforementioned
topic? Actually I would like to see the screen output produced by my Apple IIc
in colour, and it seems a difficult task for me so far...

My Apple II is a German version(?) - at least it has a German keyboard layout
and German accented characters in the character set. The composite video signal
coming out from the RCA 'Video Out' jack is a strange mix, neither pure NTSC
nor real PAL: it has a 25 frames/sec refresh rate and 625 scanlines (like any
European PAL video signals) but it has NTSC colour encoding.

Thus, either I can watch the rock stable but completely monochrome composite
video on my TV, or I can watch the blurry, unstable and extremely colour-
bleeding picture on my PC's screen with the help of a tuner card. Neither option
is really satisfying for me.

I understand that the Apple IIc's 15-pin video expansion connector is not a
straight RGB monitor connector, but the bits of information I've collected so
far suggest that a not very complicated (and thus relatively cheap) digital
circuit can generate e.g. CGA compatible RGB video from the signals coming out
on the video expansion connector. Can anyone help me with some information?


Regards,

Andras Petri