goes out of focus

[timmy]

well i was told by someone that repaired these sets in the 60s and he tells me that the crt has shorts on the cathode, the wire that goes to the focus coil and this coil is getting very hot and starts to smell then i have to shut down. so i checked for shorts in the crt and all 3 guns just keep sparking and they say once you get the sparks to stop then all should be ok but to heat up the focus coil like this can this happen? or is there somewhere else i can go to find out why this coil is this hot and why it cannot focus, crt only?????