Emax

Hello

I am newbie in this group and there may been discussion  of 
following things, but i didn't found anything with quick search.

I got rusty old Emax, which seems to been lying in some shed for 
years. 
I opened the unit (i want to check some things before i put the 
power on first time). I regognized, that there was missing chip in 
the corner of the prosessor board. Beside the socket there is 
painted "IC6". What chip there should be (if any)?
There is also some 8-pin chip assembled (glued) upside down near the 
connector for display /front panel with some wires running around 
the prosessor board. Is that something known modification or just 
some repairement?

I have never used Emax before, so should there be any "welcome 
messages" on the display even i don't have any disk in the floppy 
drive. (Just to check that there is some functionality in the 
software when put the power first time on)

There is some markings that board version is 2 and C,

Is any schematics available for this machine?

Sorry about these many questions.

Regards,
Jukka