---
layout: page
title: Challenger 1P Technical Reference Manuals
permalink: /pubs/c1p/techref/
---

Challenger 1P Technical Reference Manuals
---

[<img src="https://s3-us-west-2.amazonaws.com/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"/>](https://s3-us-west-2.amazonaws.com/archive.pcjs.org/pubs/c1p/techref/pdfs/OSI_BASIC-IN-ROM_Reference_Manual.pdf)
[<img src="https://s3-us-west-2.amazonaws.com/archive.pcjs.org/pubs/c1p/techref/thumbs/OSI_C1P_Character_Graphics_Reference_Manual-thumb.jpg" width="200" height="260" alt="OSI C1P Graphics Manual"/>](https://s3-us-west-2.amazonaws.com/archive.pcjs.org/pubs/c1p/techref/pdfs/OSI_C1P_Character_Graphics_Reference_Manual.pdf)
[<img src="https://s3-us-west-2.amazonaws.com/archive.pcjs.org/pubs/c1p/techref/thumbs/OSI_C1P_Users_Manual-thumb.jpg" width="200" height="260" alt="OSI C1P Users Manual"/>](https://s3-us-west-2.amazonaws.com/archive.pcjs.org/pubs/c1p/techref/pdfs/OSI_C1P_Users_Manual.pdf)