Datamec 2020 Mag Tape Transport Engineering Change Order Log

This document is a page from the Engineering Change Order (ECO) log for the TU20 Magnetic Tape Transport. It contains a list of modifications and field change orders, specifically covering TU20-00019, MISC-00086, TU20-B0020, TU20-00021, TU20-B0022, TU20-D0023, and TU20-C0024. The entries detail various hardware and documentation corrections, such as resolving transformer output issues, upgrading bus driver modules for DECSYSTEM-10 compatibility, updating read/write threshold adjustments, and correcting documentation errors associated with previous ECOs.