Item FL display Key operationMode name Description (Remote controllerDelete the LastDrive ErrorDelete the Last Drive Errorinformation stored on the DVDRAM-Drive.Press [9] [6] in servicemode.Laser powerconfirmationDrive state is judged based ondifference between laser powervalue at shipping and presentlaser power value.If DVD-RAM disc in notinserted, [NO DISC] isdisplayed.If power value study wasfiled, [ERROR] isdisplayed.1.into RAM Drive in service(Other media are assumedcorrespondence.)2. Press [4] [4].Turn on all FL/LEDsAll segments of FL and all LEDsare turned on.All segments are turnedon.Press [5] [1] in servicemode.PB HIGH SignalOutput8 pin of AV 1 Jack (PB HIGHterminal) is High (approx. 11VDC).Press [5] [2] in servicemode.PB MIDDLESignal Output8 pin of AV 1 Jack (PB HIGHterminal) is Middle (approx. 5.5VDC)Press [5] [3] in servicemode.Front connectioninspectionPress all front keys and checkthe connection between MainP.C.B. and Front key Switches.(1) Each time a key ispressed, segment turnedon increases one by one.(2) Total umber of keysthat have been pressed.Press [5] [4] in servicemode.Production DateDisplayDisplay the date when the unitwas produced.YY: YearMM: MonthDD: DayPress [6] [1] in servicemode.29