A customer brought this tv with the complain that whe he power
it,it displays as shown above.This are flyback lines and the first
area to check on the crt tv is the video board.As seen in the picture above the tv uses tda6107 as the video amplifier ic and what i did was replace the ic with a new one.Powering the tv set I discovered that the fault is still there,then I start to troubleshoot the board,then I detect that a 10ohms resistor that connects the supply to the vcc of the IC is bad so i changed it and the tv works perfectly again.