I believe that the cnc is dated around 1980.I spoke with someone the other day,and they told me that these mm2102an-4 and 4l were the same animal and that they couldnt see anything different between them.Some one else said that they were resitors.??? I do not know what these chips are for or...
Hello I have a crt board that keeps blowing fuses.the removable chips are MM2102AN-4 MM2102AN-4L . I was checking the connection in the sockets and after I pulled the chip out of my thumb,I accidently bent some pins on several chips.I broke one of the pins on a chip while trying to straghten it...