ZIP archive of 6.06 MB for the Newton project, labelled CR&HR-HPC MV-MB-V1. The CR&HR part suggests the material covers two board variants together, and V1 appears to be the first version of the main board. No brand or document type is stated, so confirm the contents after extracting and compare all markings with the PCB. Material of this size usually includes schematics, used for tracing power rails, checking circuits for shorts and locating components and test points.
The button opens the matching file on RM Schematics, or a source page if it is not catalogued there yet. The original attachment is from @ITHINKHS. Enginerys does not host this file.
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