gstdenoy@zach.fit.edu (Denoy Deboer (BCC-W91)) (04/13/91)
Does anyone out there in netland have schematics for the A-1000? I sure would appreciate a copy, or at least information on the topic I need. Basically, I need to know which pin number on the 74F74's in the clock box is the 14MHz line. Also, tell me which 74F74 (there are 3 of them) it is. Any help would be very much appreciated... Denoy gstdenoy@zach.fit.edu
<LEEK@QUCDN.QueensU.CA> (04/14/91)
In article <2289@winnie.fit.edu>, gstdenoy@zach.fit.edu (Denoy Deboer (BCC-W91)) says: > >Does anyone out there in netland have schematics for the A-1000? I sure would >appreciate a copy, or at least information on the topic I need. A1000 tech manual is available from CATS. ($25 I think) > >Basically, I need to know which pin number on the 74F74's in the clock box >is the 14MHz line. Also, tell me which 74F74 (there are 3 of them) it is. Pin 2/6 on U8G, 11/3 U8I all tied up to one phase of 14MHz clock. Pin 5 on U8G, 11/3 U8H all tied up to a different phase of 14MHz clock. I haven't looked at you circuit, so I can't tell you which clock phase to hook it up to. (All the pins are there so that you can find one that is convient for you. Nothing else) > >Any help would be very much appreciated... > >Denoy >gstdenoy@zach.fit.edu K. C. Lee Elec. Eng. Grad. Student P. S. Personally I do not recommend this hack as the E clock and 68XX perpherial interface isn't taken care of properly.