LCD View screen problem Sony DCR-HC42

well if i'm not mistaking it could be the LCD board connection at the screen . but the replacement + labor will go from 120 to 170,

have you tried to open the screen, really slowly and see if it shows any life !.
you can try to get an stimate at sony, and see how mush it will cost you repair the machine.

there is not easy way to fix it, the screws are small and they can be lost really easy.sorry