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-   -   Is this right for a BK 1077B (http://www.videokarma.org/showthread.php?t=276638)

Aperna1985 05-23-2024 08:03 PM

Is this right for a BK 1077B
 
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Hey guys I replaced a few of the caps in my BK 1077b and after adjusting the vertical a little bit I was able to fill most of the screen. Do these usually fill up real nice or is there usually gaps like I have in my picture? If not I can't find a good schematic for the 1077b I find plenty for the 1077 and judging by the fact that the filters are different I don't know if I can go by the rest. What caps should I go after to get full vertical deflection?

old_tv_nut 05-23-2024 08:50 PM

There should be gaps. Do you have any of the test pattern sldies for it? The raster should be the same size as the slide, with a 4x3 aspect ratio. You have the height turned up too much.

Aperna1985 05-23-2024 09:59 PM

Quote:

Originally Posted by old_tv_nut (Post 3257361)
There should be gaps. Do you have any of the test pattern sldies for it? The raster should be the same size as the slide, with a 4x3 aspect ratio. You have the height turned up too much.

I do have some slides, should it be just wider than the slide? I'm hoping to get some BNC connectors so I can try and make cables tomorrow and see if it works.

old_tv_nut 05-23-2024 10:22 PM

The slides I have seen have black borders all around. The raster should just fill the clear area.

Aperna1985 05-25-2024 09:04 AM

1 Attachment(s)
I got it working pretty a well now. (The horizontal at the top of the screen is a little off on my other pattern generator too) My only problem is the picture is a little too far to the right. I can't seem to find a way to adjust that.

kf4rca 05-26-2024 01:50 PM

If you have or suspect vertical troubles, check the 3.3 Meg resistors for increased resistance.


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