The chassis is very heavy. If you want to operate the chassis outside the set with CRT connected, you should make an extension for the deflection yoke wires. You need an octal plug in and an octal socket for it. It is much easier to measure currents and voltages with the chassis outside.
Please check the cap numbers. I have seen that the SAMS and the RCA manual reported different countings for the caps.
BTW: last week I was in our newspaper with a report about the introducing of color television in Germany:
http://bs.cyty.com/menschen/e-etzold...22082007_2.jpg
After this report, I got a telephone call on last saturday. An old, retired engineer in a village 5 Kilometers far away want to give away his 1967 color tv set. I was sceptical and expected one of these heavy monsters. But what I got was a small, 19 inch color tv set with shunt regulator and a 490YB22 in excellent condition. The CRT has 1.1 to 1.2 mA on all three guns and the chassis is very clean without rust. I never found such a clean chassis of this period before. Here is a photo of this set:
http://bs.cyty.com/menschen/e-etzold..._inBetrieb.jpg
It is not a good photo, but you can imagine what it looks like.
Kind regards,
Eckhard