wojtek 24 lata

Hi everyone! ;) I need schematic for old TV Sony KV-1310R made in 1974. I would like to instal PAL decoder, because he is working only on SECAM. But if You know where is some pins (H+, V+, R-Y, B-Y, VIDEO, +12V, (GND is not difficult to find :D) to connect to PAL decoder, please explain me, where I can find them. thank for any help. :)