So I had my logic board recapped by a member here on the forum and he did a fantastic job! However, I'm still experiencing the following problem:

When I turn the computer on, I get a startup bong, but absolutely no picture. I hear the disk spinning up but there's no display.

Prior to this problem the disk drive was not functioning.

Is there something I can trace both of these problems too, especially now that I know my logic board is in good, working order?