Cordial greeting friend Jonathan, this defect occurs for two possible reasons: 1. Power source of the eleveda television, which causes the flayback to increase its voltage and creates an arc in the anode or sucks the screen, damage that must be corrected quickly since the screen can be split by the side of the cathode ray tube , in this case according to the source regulator check the B + of the source if it is in the correct voltage, if not it is necessary to look for altered resistances, dry filters, sanyo usually suffer from this (dry filters) or regulator bad, in this case you have to replace it. 2. The most common damage that occurs in these cases the red or gray insulation that comes around the anode of the screen or more commonly where the screen is connected has lost insulation and has damaged the flyback suction and the hook that connects to the screen. anode of the screen has been oxidized, I can recommend changing the suck more hook for another that is better and that the suck is not going to be cracked anywhere because if so it will not serve, you must change it with great care Do not go to split it or split it because it will not work, with a cloth moistened in thinner you should absolutely clean the anode area of the screen, when it is totally clean you can place the suck and for greater security that it will not have leak you can seal it with High temperature silicone all around you wait to dry and rehearse the TV, remember that the hook must be welded with the flyback cable, I hope I have been helpful to clear your doubts, Regards