Schematic for a mosque mixer, the Indonesian name Mixer Masjid, model Master Box X6, provided as a 585 KB PDF despite the doubled extension in the original name. A mixer drawing like this covers microphone preamps, channel tone controls, summing and master output stages. Repairers use it to trace dead or noisy channels, check op-amp supply voltages and locate faulty potentiometers or jacks. Any PDF reader opens it; verify the channel count and board markings against your unit before relying on it.
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.