I have a K4900 monitor that I have a vertical deflection failure on. I have replaced or tested all the usual suspects, both os the vertical output transistors, R313, I've done a cap kit and I've tested and replaced the vertical adjustment pots. I have also replaced IC301. All of this has made no difference at all.
This monitor had the focus grid wire from the flyback shorted out to the v-pos jumper wire when I got it. I have patched both wires back up and replaced the fuse. The band it is showing on the screen is a little wider than I would expect to see from the standard vertical deflection failure as weel. Anyone have any suggestions as to where to look next?