SL 800 Parts Removal ReplacementSM-30-4072 Confidential and Proprietary Service ManualVersion 02, 2019-10-24 3 - 11 Order No. 2330-705The printout may be obsolete. Check the SIS for the most current and approved version of this document.3.3 Instrument Base and Headrest3.3.1 Operator Panel ReplacementTools and aids: 1.5 mm Hex KeyPrecondition: Identify the correct operator panel version as replacement item The Power Module has been switched offProcedure1) Carefully loosen the fixation screw (1.5 mmHex Key) of the illumination brightness knoband remove the knob, see Fig. 24.2) Remove the fixation screw (1.5 mm Hex Key)below the brightness knob, see Fig. 25.3) Carefully lift the operator panel, see Fig. 26.4) Disconnect the operator panel cable.Fig. 24: Illumination brightness knobReassembly1) Reassemble in reverse order.2) Make sure, that the two latches (on the leftside of the operator panel) securely fit insidebase cover.Fig. 25: Operator panel fixation screwFig. 26: Operator panel removal