Well, I need to identify the four wires coming from this HITACHI CRT tube ref 510UJB22


I know these four wires are used for the X/Y deflection...

...but I really need to figure out what's what here ( H+ H- V+ V-)


This tube was connected to an Electrohome
G07CB0 chassis (not working anymore), like this


In the chassis manual (full version
here, I can spot the Q1, Q3, Q4 & Q5 where these fours wires are plugged, but still can't tell which ones are for what?


I plan to use an brand new 'generic' chassis, but I would like to connect it to the Hitachi CRT tube previously used with the now broken G07CB0 chassis.
Any idea how to figure out what exactly are these four wires?
