Assembly drawing for the subwoofer 7294 amplifier, version 1.1, provided as a 138 KB PDF; montaz is Polish for assembly. It shows where each component sits on the board, with designators and orientation, which helps when populating a new board or checking an existing one for wrongly fitted parts. Use it together with the schematic and PCB layout from the same set. Pay particular attention to the polarity of electrolytic capacitors and diodes and to the insulation of the power IC on its heatsink.
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.