vertical lines in a Toshiba TV

[old_tv_nut]

Is that picture taken with no signal connected? If so, try connecting a signal and see if they dissappear. This will tell you if it's an RF interference or a conducted interference from horizontal into video on the chassis.

If it disapperas with a normal strength signal, I'd just forget about it. If it's still there, then you might try chasing ground connections between the circuits and also wire dress.