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Re: Unusual IIc??

   Actually, to follow up my own post, the US model is the one with the 
modification not the Ireland one.

Tony

........................


Tony Cianfaglione (tony@ccn.cs.dal.ca) wrote:

:    I have 2 IIcs (both 255 versions) but one has some modification done 
: to the original motherboard.

:    On one of them, R6, R11, R21 and R22 as well as R13, R14, R12, R15 
: have a resistor of sorts soldered on them. 

:    Next to the resistors(?) are two chips, one labelled L M311 M8416 A+ LM 
: 311N and the other labelled 406 A NE555P.

:    Why would 2 identical 255 IIcs have a variance from one to another?  
: One was assembled in the US and the modified one in Ireland.  Both have 
: 128K and neither support a memory card or UniDisk 3.5.

:    What do these extras circuits and chips do?

: Thanks,

: Tony