This board is what you see when you
remove the Back Cover of the camera.
In the bottom right is the Capacitor
for holding settings for Battery change.
The three buttons just to the left are
push switches operated from the buttons
on the Back Cover of the camera.

Value or replacement number for the capacitor
is not known.
Ref: see http://www.pbase.com/ociepka/750
for a similar item for the Olympus c-750