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layout: page
title: Challenger 1P Technical Reference Manuals
permalink: /pubs/c1p/techref/
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Challenger 1P Technical Reference Manuals
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[<img src="http://archive.pcjs.org/pubs/c1p/techref/thumbs/OSI_BASIC-IN-ROM_Reference_Manual-thumb.jpg" width="200" height="260" alt="OSI BASIC-IN-ROM Manual"/>](http://archive.pcjs.org/pubs/c1p/techref/pdfs/OSI_BASIC-IN-ROM_Reference_Manual.pdf)
[<img src="http://archive.pcjs.org/pubs/c1p/techref/thumbs/OSI_C1P_Character_Graphics_Reference_Manual-thumb.jpg" width="200" height="260" alt="OSI C1P Graphics Manual"/>](http://archive.pcjs.org/pubs/c1p/techref/pdfs/OSI_C1P_Character_Graphics_Reference_Manual.pdf)
[<img src="http://archive.pcjs.org/pubs/c1p/techref/thumbs/OSI_C1P_Users_Manual-thumb.jpg" width="200" height="260" alt="OSI C1P Users Manual"/>](http://archive.pcjs.org/pubs/c1p/techref/pdfs/OSI_C1P_Users_Manual.pdf)