These links are not active yet because I haven’t been
able to do the scans yet!
I possess five different versions of the Rockwell AIM 65 schematic.
Rev.0 One has no document number or revision so I have to assume this is the original document!
I have it posted at www.originalwoodworks.com/aim-65.htm/AIM-65rev0
Rev.1 is dated Feb. 1979 and contains a change in Z36 adding Z29-12pin & Z20-6pin 4.7K pull-up resistors at Z-36pins 10 & 15 in the lower left corner of schematic. Z20 is at Z32’s lower left (R6522VIA) Lower left pins 18 & 40.
I have it posted at www.originalwoodworks.com/aim-65.htm/AIM-65rev1
Rev.2 is dated July1980 and contains two additional outputs to the J1 application connector putting +24V on pin Z and –12V on pin 22.
I have it posted at www.originalwoodworks.com/aim-65.htm/AIM-65rev2
Rev.3 is dated April 1980 and adds Z38 & Z39 (74LS32’s) between Z27 (74LS138 ROM address decoder) and they are clocked by the inverted system phase two (notØ2). There is an error in that Z38 is shown with two pin 8,9,10 buffers at Z23 & Z22. I assume one is contained in Z39. This is in fact corrected in Rev. 4. Also, the system clock portion has be redesigned and J8 has been added to s3 (Keybd/TTY) switch, J7 to S2 (Run/Step) switch, & J6 to S1 (Reset) switch.
I have it posted at www.originalwoodworks.com/aim-65.htm/AIM-65rev3
Rev.4 is dated Jun 1983 and corrects the gate labeling problem Z38 and changes the values of R3, R4, R5 in the clock circuit from 3.3K, 1.8K, 1.8K to 15K, 3.0K, 1.5K respectively.
I have it posted at www.originalwoodworks.com/aim-65.htm/AIM-65rev4
Rev.5? I don’t have a copy of this so I can only comment on what I remember. I think that when Dynatem took over the production, that changed the system clock to the metal can oscillator type that we commonly saw starting with the IBM PC. I know that they also switched from the masked ROM’s for Z22 and Z23 monitor ROM’s to 2532 EPROM’s because I have some of those. I pulled them and replaced them with Rockwell ROM’s because the EPROM’s were so expensive and were of considerable value to me for other uses!