[Elecraft] Ser 4993 - First Problem

[NZ8J]

Well, everything went well until it was time to apply power for the first
time....  :)

---- All resistance checks were as they should have been to this point
---- Applied power for the first time:
            ---- heard the relays engage
            ---- backlight came on
            ---- Display is blank, nothing whatsoever in the display
            ---- turned rig off and back on, no relays this time, but still
nothing in the display
            ---- Doesn't appear to accept any button pushes at all, band +/-
does nothing,  as well as display, menu, etc
            ---- good news is no smoke (yet)
            ---- Not sure if it's significant or not, but the display seems
to flicker slightly, with the desk lamp off, it is noticeable


I've taken the boards out and rechecked all connections, etc, I can not see
anything obvious...

Any suggestions??

Thanks
Tim
NZ8J