armadillu
Member
Hi! Just got a Color Classic II from Japan (Buyee), that was sold as Junk / not working. On the listing pics you could tell it had been Takky'd; it had tons of external cards (video, tv, ethernet + modem) but it looked to be in pretty decent shape cosmetically... I was willing to give it a try, so I got it. Anyway, when it finally arrived, I didn't want to turn it on before inspecting. Its a Performa 6200, all the Takky steps seemed ok, but it didn't quite start. The hard drive seems dead. I recapped the analog board, and it does start now...
It boots well (no sound, but I'll get into that later) off a blueSCSI; I even installed 8.1 just to check the reported video resolution (which is indeed 640x480). But the CRT makes an unpleasant noise, and the top half of the image is sort of de-synced, no matter what I adjust. I tried all the pots at the back. The only things that seems to make a real difference is when I adjust the VideoGain all the way to the top (it goes quite crazy) but even if I drop the gain to almost invisible, the top remains off-sync. The bottom image quality looks quite decent otherwise, albeit a bit soft (I'm guessing bc of the 640 x 480). Shifting the image up/down, or shrinking vertically doesn't affect the issue either. The only thing I haven't played yet is the PP1 potentiometer, as it seems to have been super-glued by the previous owner, and I can't adjust it at all.
Any ideas? I really really hope its not the flyback...
PS: I recorded a video so you can hear the sound as well. You can also see me adjusting the VG, and the effect it has on the CRT.
Video1 Video2
It boots well (no sound, but I'll get into that later) off a blueSCSI; I even installed 8.1 just to check the reported video resolution (which is indeed 640x480). But the CRT makes an unpleasant noise, and the top half of the image is sort of de-synced, no matter what I adjust. I tried all the pots at the back. The only things that seems to make a real difference is when I adjust the VideoGain all the way to the top (it goes quite crazy) but even if I drop the gain to almost invisible, the top remains off-sync. The bottom image quality looks quite decent otherwise, albeit a bit soft (I'm guessing bc of the 640 x 480). Shifting the image up/down, or shrinking vertically doesn't affect the issue either. The only thing I haven't played yet is the PP1 potentiometer, as it seems to have been super-glued by the previous owner, and I can't adjust it at all.
Any ideas? I really really hope its not the flyback...
PS: I recorded a video so you can hear the sound as well. You can also see me adjusting the VG, and the effect it has on the CRT.
Video1 Video2