cube1us
commented
4 years ago The first example was fixed before the report was done. Report completed.
Closed cube1us closed 4 years ago
cube1us
commented
4 years ago The first example was fixed before the report was done. Report completed.
Examples:
Sheet 12.12.67.1 has +S E CH In PROCESS from sheet 13.60.04.1, but the latter sheet does not show the signal as being output to 12.12.67.1. (I left it in place, with the signal present)
Sheet 13.67.02.1 EC 251823 shows output signal "+S F CH SECOND SAMPLE B" as going to sheet 13.64.05.1 EC 251829. However, the latter does not show that signal as an input. (They do agree on signal "-S F CH STATUS SAMPLE B DELAY")
Page 12.12.67.1 has an input signal "-S F CH FILE OP" which originates on page 13.74.01.1, however the latter page does not output that signal. (Would be easy to create logic to do that, however)
Page 12.12.67.1 has an input signal "+S FILE OP DLY EXTENSION" which originates on page 13.74.01.1, however the latter page does not output that signal.
Another example of a similar thing is where the names don't match (but the signal could have a source elsewhere). Example:
Sheet 13.67.02.1 EC 251823 shows output signal "-S F CH INT END OF XFER DELAYED" as going to sheet 13.64.07.1 EC 253150. However, the latter shows the input signal as +S, not -S. I will use the later E.C. as the correct one for now. Since 3B is the source for that signal, there is a pretty good chance that said block was simply dropped in the later E.C., which is why it was not in the card location chart.
One way these can happen in the IBM 1410 drawings I have is a few sheets are not the ones for the accelerator feature, and so there can be a mismatch - in either direction.