Hey folks;

I've got here a set of Logitech Z-640 speakers (5.1 setup), and the two
front channels are completely dead. Now I've done some futzing around
with the warranty replacements that Logitech sent me (FANTASTIC service
from those guys!), and have found that the problem is somewhere in the
centre channel unit, which has all of the cabling and such. Question is,
how do I get INTO this thing?! I've got the grille off, and taken the four
screws out, but now I'm at a loss. I can start prying with a screwdriver,
but I want to make sure that I'm doing the right thing before digging too
hard.

Thanks,
Colin