Remove all leads
Remove rear feet (two Torx 15 pet foot)
Remove strap handles (two phillips per strap)
Remove M3 screws under strap (lots of Torx 10)
Pull bottom edges of cover out sightly, slide back a bit and lift off.
Internal covers have instructions on them.
The repair manual is in Files.
Opps,
Forgot 4 T15 screws holding cover to rear panel.
Robert G8RPI.