Service manual for the Lexicon MPX 500 effects processor, a 5.73 MB PDF. Lexicon service documents usually include theory of operation, schematics, board layouts, parts lists and calibration or diagnostic procedures. Use it to trace the analog I/O and power supply, follow digital signals around the DSP and converters, and identify components by reference designator. Check the board assembly revision printed on your PCB against the manual before replacing parts. Any PDF reader opens it, and search makes part lookups quick.
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 @pdf_servicemanual. Enginerys does not host this file.
How to open a .pdf file
The standard format for schematics, block diagrams, power-sequence charts and service manuals.