AIM 65 Cassette Test Program

Hi all...I got the following through my web site. Does anyone have a good known-working test program for an AIM 65 cassette that I can attempt and or send in response? I still have to set mine up and attempt to reproduce, but someone here likely has more experience, it has been at least 5 years since I powered mine on. Also, the article this guy references from MICRO April 1979 volume 11 is not present in my copy of MICRO, he may be mistaken in his reference. I don't know what cassette program he is referencing. I do know that the cassette test program that comes in the Rockwell AIM 65 manual is in error, but I don't have the corrections. I also know that one needs the correct (optional otherwise) power lines when using cassette. Bill VintageComputer.net Inquiry - I am one of the founders of the Computer Museum in Basel (CMBB/CMGB). We have 2 AIM 65 units that seem functional. However, we're experiencing problems with the cassette drive when trying to read back. We tried to record using cassette recorders and also a modern PC through line in and the audio signals are clearly recognizable (from pin M). A connection to pin L and using the corrected program to test readback from "micro_11_apr_1979_text_syn_read_program_AIM65.pdf" only displays the "N" on either AIM 65 system. The cassette interface potentiometers are sealed in one of the units by the manufacturer and have never been changed as far as we can tell. Is there anything we could try to get reading from tape to work? We are running our of ideas. Is there any way to visualize the incoming signal through a small program other than the one from the magazine?