R, G & B as they leave the video processor should all be approximately equal DCV. (Pins # 25, 26 and 27) Are they?
When R, G & B are fed off the mother board and to the CRT boards, those DCV should be nearly the same as at the video processor and approximately equal to each other. Are they?

JTS1957 The connector plugs on the blue crt board as follows: LB1 pin 1 is where the -y video signal comes in so YES to that question..the connector plug for on screen is LB3 AND IT COMES FROM WHERE? (a microprocessor IC - maybe?). so YES to that question..All CRT'S were checked on my B&K 466 crt checker /rejuvenation All READ good emission and NO SHORTS.The Q1403 BLUE OUTPUT and Q1406 BLUE DRIVE TRANSISTORS were checked on a dedicated heath kit transistor checker even though they checked good I went ahead and changed them With NTE
cross over's NTE399 was the crossover for the blue output
and I kind of forgot what the crossover for the driver was NTE85 but it was crossed over for the right replacement and was checked before installing I am presuming that in regards to basing, they were correctly installed.Oh one more thing the plug B9 /LB2 IS the feed for the crt filiment pin 1
pin 2 goes to ground and pin 3 is for feeding b+ to the output transistor and also feeds grid 2 on the crt The reason I did NOT ask about LB2 (& LB4) is I have enough prior experience and can see where they go.

I was hoping to solve this problem without having to drag the scope into the living room .

I can read the schematic without a magnifier .

Go back to Photobucket & find the "Direct link" for the pix..
Open a new window & paste the link to get a new image...
Do NOT click on the pix to make it larger...
With the pix in it's small version , move the mouse on the pix , right click & copy the pix in it's SMALL version..
Then paste it here , PREVIEW POST & check for excessive width again...