unknown system part PCB containing 16 of MM1702AQ Eproms

[inotarobot]

Help identifying this "Lotseite" MM1702AQ Eprom pcb please

don't know what it's from or where I got. It has name (Lotseite) with 2 dots above the o.

Anyone any ideas?

looking at the labels the 16 chips seem spread into 8 low and 8 high as per the following table

address 002 being 0-R and 0-L
address 100 being 1-R and & ?1-L
address 200 being 2-R and 2-L
address 300 being 3-R and 3-L
address 400 being 4-R and 4-L
address 500 being 5-R and 5-L
address 620 being 6-R and -L
address 700 being 7-R and 7-L

and there is one chip thats out of place and reversed in what I assume is 1-L location being marked
address A00 being 8-L

So I am taking it there was more memory chips on the part of the board thats been cut of and lost.


On the back side are row A,B,C & D and column 6,7,8 & 9 marks

anyways at the moment this is the only PCB I can locate with early eproms that may ??? have some O/S as has been being recently asked for on this forum


So if any of you think these eproms might yield worthwhile code then I will need to try and get a way to read them

 

[daver2]

My guess would be a German company (with the umlauts).

I searched for "Loetseite" (replace the umlauted "o" with "oe") and the most hits that came up appeared to be a PLC manufacturer.

However, the German English translation is "solder side" !

Photograph?

Dave

 

[rwiker]

"Lötseite" is simply "solder side", I think.