some basic questions after recap Emerson 637A

[CJVx]

After a recap of the paper and electrolytic caps, the power up was fairly uneventful.

Power up was fine, good vertical but poor horizontal stability. It will do the following:

At first when the screen comes up, it is out of sync. i can dial it in with the hold control, but it only stays for a few seconds, scrambles, syncs again, scrambles etc. It does this for about 5 minutes, then finally stabilizes and will hold sync, however the horizontal hold control is still rather touchy. I left it on for a few hours, dialed in the vert and horiz settings to get a full linear picture and everything remains stable. After cool down, and power up again, the pattern repeats.


The picture is rather dark, and will wash out with added brightness. The focus control will focus it to something usable, but it is not sharp by any means.

I did test all the tubes, and replaced any weak reading ones.

Any tips for looking into this horizontal thing and dark picture?

These might be common questions, but i tackle a TV every few years, and this is my third attempt, with one of them currently shelved pending further investigation.