Rk05 Maintenance Tips

Summary

RK05 Maintenance Tips This document serves as a technical guide for the maintenance, troubleshooting, and alignment of the RK05 disk drive system.

• Disk Pack Handling: Provides strict guidelines for handling and storing disk packs to prevent contamination, which can cause catastrophic head crashes. It details how to identify bad packs that require refurbishing.
• Pack Seating & Alignment: Explains the physical alignment requirements for the cartridge receiver and the importance of specific engineering change orders (ECOs) for compatibility across different plastic housing types.
• Head/Disk Interference (HDI): Discusses the causes, recognition, and recovery procedures for "head crashes." It emphasizes that disassembly or internal cleaning must only be performed by the Quality Assurance Lab.
• Head Alignment: Details technical procedures for aligning read/write heads, including torque requirements, the use of a specialized DEC Alignment Pack, and instructions for cylinder address conversion.
• Compatibility: Outlines methods for verifying drive-to-drive compatibility through testing procedures.
• Adjustment Check List: Provides a reference table for servo signals, data window timings, and power supply voltages.

RK11 Logic Test The latter section of the document covers the technical specifications and operational instructions for the RK11 Logic Test program, used to verify the functional logic of the controller. It details:

• Program Modes: Describes various modes for testing, including Paper Tape, DDP Dump, DDP Chain, and ACT 11.
• Switch Options: Explains how to use the switch register to control testing functions (e.g., looping on error, inhibiting iterations, or locking on a specific sector).
• Program Structure: Breaks down the program into initialization, drive-independent tests, and drive-dependent tests.