Manuals and User Guides for Radio Shack TRS-80. We have 57 Radio Shack TRS-80 manuals available for free PDF download: Reference Manual, User Manual, Service Manual, Trsdos & Disk Basic Reference Manual, Technical Reference Manual, Owner's Manual, Operation Manual, Manual, Reference Handbook, System Manual, Technical Service Data, Hardware Manual, Technical Manual, Operation Manuals, Quick Reference Manual, Preliminary User's Manual, Instructions Manual, Operator's Manual, Assembly Instructions