Component document for the 74HC245, an octal bus transceiver with three-state outputs, provided as a 267 KB PDF in the schematic category. The name does not identify the maker. This chip passes data in either direction between two buses, controlled by a direction pin and an output-enable pin, so faults often show up as corrupted or missing data lines. Use the pinout to probe the A and B sides and the control pins while the board runs. Confirm the logic family on the chip marking before substituting.
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.