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+--- Thread: DSE Lower Case Instruction Manual for the System 80 (/thread-1114.html)
DSE Lower Case Instruction Manual for the System 80 - ChickenMan - 16-10-2026
Thanks to GeorgeK for providing a scan of this 2 page manual. Scanned at 300dpi and converted to a searchable PDF as usual.
Dick Smith Electronics provided an option to install Lower Case on the System-80. The original TRS-80 and System-80 both initially had UPPER case only. The rom they provided needed some mods to the main CPU and Interface boards with some tracks cut and links installed. The process is fully described in this document.
So in the MbeeTech Repository in the Vintage\System-80\Documentation\Manuals folder we provided
system-80_x-4018_lower_case_instructiuon_manual.pdf