Read/Write and Servo

This document is a comprehensive technical schematic and parts list for the M7761-0-1 circuit board, designed for the TU60 tape drive system. It provides the following:

• Page 1: A component placement layout diagram showing the physical location of various integrated circuits (ICs), transistors, capacitors, and resistors on the printed circuit board.
• Page 2: A detailed parts list enumerating all electrical components required for assembly, organized by reference designator, description, and quantity.
• Page 3: Circuit schematics focused on motor control logic, including servo drive circuits and tachometer signal processing.
• Page 4: Schematic diagrams for the rewind and register logic, including sensor interfaces and operational controls for tape drive mechanics.
• Page 5: Detailed schematics for the read/write circuitry, covering signal amplification, peak detection, and data processing logic.