Latch for blade holder wore out, that latch is part of the "Hair Chamber" so ordered a replacement. It appears that 2 screws hold the hair chamber in place from Underneath. I removed 2 screws on the metal panel on the razor, exposing the circuit board, but uncertain how to proceed to remove old and attach new hair chamber??? thanks

Health & Beauty - Norelco - 8894 XL Electric Shaver