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Code updates could be accommodated via a [[2716]] "patch" EPROM (U1640, 160-1712-xx) and a [[Signetics 82S107]] "Field Programmable ROM Patch (16X48X8)" (U1420). | Code updates could be accommodated via a [[2716]] "patch" EPROM (U1640, 160-1712-xx) and a [[Signetics 82S107]] "Field Programmable ROM Patch (16X48X8)" (U1420). | ||
The updated CPU board (Rev.01, ca. 1985) replaced this complex arrangement with a single EPROM (160-1091-xx). | The updated CPU board (Rev.01, ca. 1985) replaced this complex arrangement with a single EPROM (160-1091-xx, 160-4971-00). | ||
==Pictures== | ==Pictures== | ||