|
Cleaning out some tin whiskers fixed the focus problem.
Was able to get an image by injecting into the IF using a B&K 1077B.
It behaves strangely though. Regardless of whether I inject before the 1st, 2nd or 3rd stage, I have to use the max output to get an image. If I back off just about 5% on the level, the screen blanks out.
I'm having to drive that IF really hard in other words or I get nothing. Figure it's something with the AGC. Will keep poking around.
|