Indexed under schematics, this 83.7 KB PDF named 155cmq015 has the form of a Schottky rectifier part number, with 015 typically meaning a low 15 V reverse rating suited to very low-voltage high-current outputs. It is best treated as a datasheet holding forward voltage, current rating, leakage at temperature and package drawing. Use it to verify that any replacement keeps the low forward drop the circuit depends on. Confirm the full code on the original part before fitting.
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 @cyberlanelectonik. Enginerys does not host this file.
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The standard format for schematics, block diagrams, power-sequence charts and service manuals.