Mallinckrodt NELLCOR NPB-4000 Service Manual page 64

Section 6: Disassembly Guide
6-14
Step C3
To remove fuses:
a) Remove AC power input fuses, as shown, using fuse pullers.
Fuse F1 and F2
Step C4
To remove power supply assembly:
a) On rear panel of monitor, remove eight screws fastening power supply
assembly.
Procedure
Illustration
Procedure
Illustration
Screws fastening power
supply assembly