On 7/29/14 11:19 AM, Marco Rauhut wrote:
I have read errors with the unit!
With the TD8E diagnostic software i get an error that block 0 was not found.
I have also bad mc1709 read amplifiers.
So i think i got to adjust them.
Maybe.
Are you using a PDP-8 formatted DECtape?
Is the controller known to be working?
Can you see clock, mark track and data track output?
Is the clock aligned with the mark and data tracks?
How many 709's were bad, and on which module was it bad on?