RAR package for the Sony KDL-22BX320 television on chassis AZ2EK, size 1.54 MB. The name names the model and chassis but not the exact contents, which could be the service manual, circuit diagrams or firmware, so unpack it first. Technicians use such material to trace standby and main rails, diagnose no-power or no-picture faults and check connector pinouts. Verify that the chassis label and board part numbers inside the set match the documents before comparing voltages or flashing anything.
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 @gunvantrathore. Enginerys does not host this file.
How to open a .rar file
Compressed archive — the usual wrapper for a schematic + boardview pair or a BIOS + EC set.