20
Sirius-PJ1Training
Slide 20
Locations of Main Units - 1
After removing the top cover, you see the main board (called the MAIN IO or MAIN
PWB).
This board must be removed to access the adjustments.
After you remove the main board, you can see these major subassemblies:
OPT BASE: Contains the LCD panels, cross prism, and projection lens housing
Engine unit: Contains the relay lens, field lens, polarizers and the dichroic mirrors
Integrators: These are the PBS units
Main Board
OPT BASE
Engine Unit
Integrators
Please ignore the callouts [A] and red circles in the diagram.
