Mainboard 81-240: Difference between revisions
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! Serial Num !! Board Num !! QC Sticker !!Monitor ROM !! Char ROM !! Notes | ! Serial Num !! Board Num !! QC Sticker !!Monitor ROM !! Char ROM !! Notes | ||
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| #16679 || 30484 || none || 81-232 || 81-146 || Likely a FrankenKaypro due to multiple parts from multiple eras. | | #16679 || 30484 || none || 81-232 || 81-146 || Likely a FrankenKaypro due to multiple parts from multiple eras.<br>Shield | ||
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| #17083 || 53883 || M-681? || 81-232 || 81-146 || FrankenKaypro? | | #17083 || 53883 || M-681? || 81-232 || 81-146 || FrankenKaypro?<br>Shield | ||
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Revision as of 13:07, 25 September 2025
81-240 General Info
The 81-240 Mainboard was used for both the Kaypro II '83 and Kaypro 4 '83 machines. According to reports it detected if it was reading a single or double sided drive and would continue to function based on that data.
The previous board for the Kaypro II was the 81-110.
The universal board would replace it for the K2 '84 and K4 '84.
81-240A Machines
| Serial Num | Board Num | QC Sticker | Monitor ROM | Char ROM | Notes |
|---|---|---|---|---|---|
| #16679 | 30484 | none | 81-232 | 81-146 | Likely a FrankenKaypro due to multiple parts from multiple eras. Shield |
| #17083 | 53883 | M-681? | 81-232 | 81-146 | FrankenKaypro? Shield |