IBM PCjr Troubleshooting Guide: Difference between revisions
Expand troubleshooting: internal power-board failure (soot)/sidecar limits/modern PSU, green choke wax (not a fault), IR keyboard, tantalum shorts; cited |
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[[File:IBM PCjr (photo).jpg|thumb|right|300px|IBM PCjr. Source: Wikimedia Commons.]] | |||
This guide covers diagnostic procedures for the IBM PCjr (4860). The PCjr has a smaller and less rigorous POST than the 5150/5160/5170, and some of the most common PCjr complaints are software/timing issues rather than hardware failures. | This guide covers diagnostic procedures for the IBM PCjr (4860). The PCjr has a smaller and less rigorous POST than the 5150/5160/5170, and some of the most common PCjr complaints are software/timing issues rather than hardware failures. | ||