ZIP archive of 3.14 MB for the M5488 design, with IT-158TC given in brackets as a second identifier. The name does not state the brand, revision or document type, so open the package and confirm what it contains before use. Match both codes against the silkscreen and labels on the board, since similar models can use different layouts. Material of this size usually holds schematics, used for tracing power rails, checking the power-on sequence and finding 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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