File:Osborne 1 Double Density Option Installation Oct83.pdf
Summary
[edit | edit source]Double Density Disk Drive Option Installation Procedure for the OCC 1/1A Computer, document SBXNES031, prepared for Osborne Computer Corporation by Xerox Corporation, Xerox Service Business, Service Education & Customer Support, October 1983. 20 pages. It lists the kit contents (double-density board, 10-wire ribbon cable, 2732 monitor ROM revision 1.44, stand-offs, user manual and Extended Utility disk), states that the logic board must be revision G or later and the disk drive boards revision J or later, and gives the Siemens and MPI drive alignment checks, including the drive timer limit of 199.80 to 200.20 ms set with R23 on the drive board. Monitor ROM revision 1.43 is fitted at D12 temporarily for the alignment procedures. Described on Osborne 1 Double Density Option Installation Procedure.
Source
[edit | edit source]http://www.bitsavers.org/pdf/osborne/osborne1/Double-Density_Disk_Drive_Option_Installation_Oct83.pdf (retrieved 2026-10-01)
Author
[edit | edit source]Xerox Corporation for Osborne Computer Corporation.
Licence
[edit | edit source]Copyright Osborne Computer Corporation and Xerox Corporation. Hosted for preservation and repair reference.
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| Date/Time | Dimensions | User | Comment | |
|---|---|---|---|---|
| current | 13:01, 1 October 2026 | 0 × 0 (584 KB) | Josh (talk | contribs) | Osborne 1 double-density option installation procedure SBXNES031, Oct 1983, from bitsavers |
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