Help needed with HP-IL disk drive

[Paul Berger (Canada)]

Well if you are getting loop broken that assign IO is not going to help you and it is not required. I am guessing that 911B = 9114B when you turn it on the battery indicator should indicate full, and the test light go out. You can eliminate the cables as a problem source by connecting the ends together and then you can force the 71B to rescan the loop by executing 'control on'. If the loop is closed you should not get any message. Do you know that the battery in it is any good?