. OPERATION DETAILED CONTROLS AND GAUGES OPERATION DETAILED CONTROLS AND GAUGES screen for Items 1) and 2), it is possible to carry out the following operations with switches F2 to F6. F2: Resets all adjusted values to default value 3 - 54 On the F3: Indicator of selected item moves 1 segment to left. F4: Indicator of selected item moves 1 segment to right. F5: Returns t o user menu. F6: Accepts c hange and switches to nex t item setting.