Laurens Holst wrote: > Jun Sung Kim (???) wrote: >> Hi, >> >> As far as I know, >> No composite signal supported by V9958... > > Indeed. The v9958 outputs an RGB signal, and that signal is used to > construct the composite video signal, but the v9938/58 doesn't do > this by itself, there is seperate hardware for that. At least, I > believe that is the common practice, but the v9938/58 also outputs a > composite signal, which is usually not used but maybe your MSX > does... Although, I see it's an 8250 you're talking about, which > isn't exactly an obscure type of MSX computer...
Ah, I just looked into it a little, the composite output signal on the v9958 is not present anymore at all. So that won't be the cause of the problem, since if it were taking the signal from the VDP it would show a black screen instead of only missing colors (the signal used to be on pin 21 by the way, so maybe there's a link after all). As I said, I think the wiring is wrong. Although you're following Hans Oranje's instructions (http://www.hansoranje.demon.nl/downloads/v9958inNMS8250.pdf), so those should be right... weird. Maybe you should pull pins 4, 27 and 21 out of their sockets? There's also this description: http://www.geocities.com/Yosemite/Meadows/7278/MSXKIT/NMS8245/PLUS.HTM It is about the 8245 but I don't see why it shouldn't also apply to the 8250. Although I must say I personally have more confidence in Hans Oranje's description. I don't know the exact details of how it is done inside my MSX. I'll have to open it up and take a look someday. ~Grauw --- Ushiko-san! Kimi wa doushite, Ushiko-san nan da!! _______________________________________________ MSX mailing list ([EMAIL PROTECTED]) Info page: http://lists.stack.nl/mailman/listinfo/msx
