LG RZ-42PX10 green pixels noise and Vscw random Volts

[Sraros]

Hello,

I have am TV plasma with green pixels maldischarge.
I checked with the MM
Vy= -47,7V
and Vscw is trembling between 0V and 100V mostly close to 10V

Are these Voltages connected and what might be the fault for the Vscw?