More Motorola Horizontal blues :(

[nasadowsk]

Ok, I've got the HV up, the set works, there's sweep, BUT:

I've a nasty bar to the left of the drive line. It looks like a 2nd drive line, almost.

The flyback's a Thordarson Fly-40, the Yoke's a Merrit MDF-70.

Attached is the schematic. The set's currently in the factory-built configuration, but there were changes to it as found:

1) There was an additional 250 pf cap bridging the drive adjustment (green area)
2) The size control was disconnected (red area)
3) The .03 cap was to the 290V supply. Physically, installed across the terminals on the flyback.

#3 doesn't seem to affect anything, though having it out of the circuit maked things worse (lots of drive line-like bars)

I disconnected the size control, this fixed the bar issue, but blew the width up a LOT.

Adding back the 250pf cap brought the size down, got rid of the drive line, but cost brightness.

Now, the question is, do I leave it this way, or was this a 'quick fix' for something else, and if so, where do I look? The flyback's sheet says it's a replacement for _only_ this set's flyback, but the yoke isn't exact. I've put the right cap in the yoke, but not much change (unless the cap I robbed out of the old yoke was bad?).

I know most later sets didn't have width adjustments, but I'd like to have that work here if I could, and frankly, unless there's something I'm missing, here, I don't get why the factory setup shouldn't work..

Anyway, here's a link to the horizontal section - I chopped the schematic to get rid of (seemingly) unrelated stuff and make it fit in a window...

Oh yeah, the damper's been changed - no dice. The old output had a magnet tied to it - but this just doesn't look like snivets...

As an aside, I STILL can't get this thing to focus right, I'm not sure why, but I don't think that's related anyway - the HV's pretty much in spec, though it does drop at the high brightness setting...

http://farm4.static.flickr.com/3107/...c514e4eb_o.jpg