My A2000 composite jack seems to have gone bad. I was attempting to use it until I can get a RGB->S-video/composite adapter. I can see WorkBench but it scrolls constantly. I tried connecting it to two different TVs and got the same results. Could this be the Denise chip or one of the other chips that controls the RCA video out? I should add that the PSU is starting to fail, the system boots up fine unless I plug in the power to the CD-Writer.
