KV9200 Issues

[vol.2]

So I went ahead and did this. It looks a little sharper to be sure, but I found a couple more issues while I was messing around with bringing the brightness and color back to normal.

First weird thing is the AGC. That's the only internal video level control I get, so I went to set it up and the voltage is way off what the Sams says it should be. Sams wants 2.5V-2.7V at the emitter of Q207, the 1st Video Amp. I see between 600mV-1.6V maximum as I twiddle it.

As the voltage at the emitter goes down, the video signal gets stronger, which I didn't expect, but I'm just learning here I guess.

I wish I had the actual SM, but this is the best I can do otherwise. Is there any reason the voltage there would be off by what seems about double?

I checked and set the B+ when I did a recap of the set.


EDIT: OK I found the SM. It looks like Sams is wrong. It's supposed to be 2.6V at the BASE not the EMITTER, and readings are with a colors bars pattern displayed or nothing. Sams didn't mention any of those details.