Field Change Order

This Field Change Order (FCO) TU77A-M0007 provides comprehensive instructions for retrofitting the TU77A magnetic tape transport. The document includes:

• Applicability: Specifically targets various serial numbers and hardware configurations, including those requiring control module exchanges or noise reduction/heat exchanger kits.
• Problem Symptoms: Addresses issues such as capstan wraps, media damage, tape stretch at unload, and general noise levels.
• Installation Procedures: Detailed, step-by-step instructions for four separate kits (Kit I through IV), covering the replacement of control modules, installation of switch assemblies, and integration of cooling/acoustic components.
• Parts List: A complete breakdown of parts required for each installation kit, including part numbers and quantities.
• Figures: Technical diagrams depicting the installation of switch assemblies, decal placement, and component mounting.
• Tech Tips: Includes several technical tips related to TU77 maintenance, such as cartridge opener motor replacement, interconnect board replacements, reel hub changes, and various troubleshooting adjustments.