I finally managed to find an analog board (AB) on the ebay. Unfortunately this analog board has a weird behavoir. It powers up the CC only by pulling it out and reinserting. The power button does not work. Since I have another bad AB that does not send the signal to the CRT I was wondering to make a good one. Which parts shoul I get from which AB?
PS. this is my Mac basement under construction: http://homepage.mac.com/bengi/PhotoAlbum32.html