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I've added some pictures of the chassis as well as a rough schematic on the inside of the case. I decided to check the B+ to see where it was at. I have the black lead of my dmm on the hot ground and the red lead on D434. I turned the brightness all the way down and try to adjust R452 and the highest it goes is 108V. D434 is the only thing I can find on the board about B+. Not sure what TP4 is but it says 130V. By the way no matter what I have the brightness on D434 stays at 108V. Also TP23 says 200V but it's not even close to 200V and it slowly keeps dropping. I'm new to testing voltages while sets are running. Not sure if this stuff is normal and if not I'm not sure what to do next.
I'm about to give up...
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