You can use almost any schematic for a SS set to
follow this. I dont have this manual so its aproximate.
Use a blank screen.
The R,G & B outputs usually on the CRT socket.
Video comes into all 3 emitters apx same voltage.
R,G, & B each go to there base, again all about the same.
If you measure the collectors they will be apx 120VDC.
If one goes low it brightens that color, if high will darken it.
Try swapping the Red transistor with another. If the red
is still messed up the transistor is OK.
If the red collector is low DC volts pull the CRT socket &
measure it again. if it came up the CRT has H-K leakage.
Also compair the red base with the others, the jungle IC
may have a problem.
73 Zeno