Question LG UF6450 backlight issue

Nov 16, 2020
I Have this TV where there is no video but audio , all funcsions works fine.
I need to know
What kind of backlight I will need?
How would I know how many are not working ?
Is LG UF6450 use any generic type of back light or I can use generic type ( if generic type of backlights are available)
Thanks in advance