BUCHI DuMaster D-480 - Manual (Page 245)

Operation Manual D-480 ©BÜCH Labortechnik AG
9 - Repairing the instrument 245
Phase 2: Remove and check fuse
Proceed as follows:
 If a part of the instrument is no longer working, consult the above table to find out which fuse is
resposible for the component.
 First remove the rear wall. To do that, unscrew the rear wall retaining screws and pull the
protective earth conductor connector out of the rear wall. The following picture shows the
protective earth conductor connector:
 Then remove the rear wall.
 Loosen the knurled screw (1) of the semiconductor relay holding plate (2) and fold out the
semiconductor relay holding plate.