File:IBM PCjr Hardware Maintenance and Service (September 1983).pdf
Summary
[edit | edit source]IBM's Personal Computer PCjr Hardware Maintenance and Service, First Edition (September 1983), Hardware Reference Library, 454 PDF pages. It is IBM's service manual for the IBM PCjr (4860) and the options available at launch. Section 2 covers the required service tools and how to run advanced POST and the advanced tests; section 3 holds the Problem Isolation Charts (power 3-020, memory 3-200, keyboard 3-300, display 3-500, diskette drive 3-600, cartridge 3-810 and others); section 4 the removal, replacement and adjustment procedures, including the Power Board (4-020), keyboard batteries (4-300-3), and the diskette drive belt and speed adjustment (4-600-14 to 4-600-16); section 5 locations; section 6 the parts catalogue. The manual works at field-replaceable-unit level and gives no component values. The cover carries the number 1502263.
Source
[edit | edit source]https://www.minuszerodegrees.net/manuals/IBM/IBM%204860%20(PCjr)%20-%20Hardware%20Maintenance%20and%20Service%20-%20SEP83.pdf (retrieved 2026-09-30)
Author
[edit | edit source]International Business Machines Corporation
Licence
[edit | edit source]Copyright International Business Machines Corporation 1983. Not freely licensed. Hosted for preservation and repair reference.
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| Date/Time | Dimensions | User | Comment | |
|---|---|---|---|---|
| current | 20:36, 30 September 2026 | 0 × 0 (47.98 MB) | Josh (talk | contribs) | IBM PCjr Hardware Maintenance and Service, September 1983, from minuszerodegrees.net |
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