Hallicrafter 509 image shifted horizontally

[ohohyodafarted]

Originally Posted by Kevin Kuehn

I haven't looked at the schematic. I'm guessing the horizontal frequency is off by some multiple of what's correct. Any chance you could have installed a cap value that is off by one decimal place? Otherwise is there a course horizontal frequency adjustment that could be off?

Yes. I did adjust the horizontal frequency to get the H-hold to lock. H-hold locks very well and I do not have multiple images.

There is just one image. The image is shifted to the left on the crt by 1/2 of the screen. That is to say; the vert bar in the middle of the screen separates the image on the crt into a left half and a right half. The image on the left half of the screen is the right half of the full image and the right half of the screen is the left half of the image

If I remove the rf antenna input (or go off channel) I get a nice snowy raster. without the vertical bar up the middle. I can see full scan lines from left to right.

Likewise if I pull the 6al5 video detector between the output of the IF section and the input of the Video amp section, I get a nice clean raster. So it appears that what is being fed into the 1st video amp is a corrupted image (maybe)?

With all of that said I am leaning to an issue in the IF section.

I am going to try and scan the original Halicrafters schematic and post it in my next post.

And I will go back and check my cap values as you have suggested.

I already checked all the electrolytics to make sure I didn't switch the polarities, and that all checked out OK.