Philco Safari Problem - raster and weak sound, but no picture - please help!

[goat1981]

An update!

I found broken circuit traces on the Video/Audio/Sync board! This TV must've undergone some kind of trauma in the past. Maybe it was left in the heat or dropped?

I found four traces that lacked continuity. I found this when I was checking voltages and two points on the same trace had different voltages...

https://app.box.com/s/s3yxjeabwn8b6k27act3jygq3k2ou2uv

I soldered in some jumper wires and got a picture and sound!

https://app.box.com/s/pjip2xjvoovx1dz86p9l2ztkmjgziflw

There are still some issues, but this is progress. The focus and linearity aren't that great. Also, I am having trouble getting clear sound. There is a buzz that slowly goes in and out in the sound. I uploaded a video of this behavior on my box account. Link:

https://app.box.com/s/txgqhar3szysgyitb9jta9evc6f6fvua

I am wondering if it's the type of modulator (a cheap one I bought at Walmart) that I'm using, because the same thing happens on a Sony 5-303W that I have. Either that, or both TVs have the same problem (I haven't really worked too much on the Sony yet).

Thoughts? Could it be bad diodes? Again, thanks for all of your help!

P.S. Sorry for the huge pictures. Any way to control that?