do i have to buy a new tv, a horizontal white line on screen only?

You have a problem called field collapse aka frame collapse. As "romko" said you may damage the vertical IC and you could burn the screen and end up with the screen showing this white line and the correct picture even after the fault is repaired.

Ritchie
June 2010

you have bad solder joints in the vertical section ('Kalte Lötstelle in die Vertikal-Endstufe' in German!) This is fixable, but meanwhile DONT use the set as it will stress the vertical IC.take it to a tech. Your set uses a Thomson chassis, so it should be very straightforward for a tech to sort out. However, the Pal B/G standerd used in germany is different from Uk pal I - so you get no terestrial tv sound- check the onscreen menus to see if it's possible to alter this, or use a german digibox in a scart input,. Viel Glück !

romko
January 2007