136.2. Option - MirrorPicture can be reversed left and right or up and down.00 : Default (Normal picture is displayed)01 : Picture is reversed left and right.02 : Picture is reversed up and down.Hint : If the defective symptom (e.g. Vertical bar or Horizontal bar) is moved by selection of this mirror, the possible cause is inA-board.6.3. Service tool mode6.3.1. How to access1. Select [SRV-TOOL] in Service Mode.2. Press [OK] button on the remote control.6.3.2. Display of SOS HistorySOS History (Number of LED blinking) indication.From left side; Last SOS, before Last, three occurrence before, 2nd occurrence after shipment, 1st occurrence after shipment.This indication will be cleared by [Self-check indication and forced to factory shipment setting].6.3.3. POWER ON Time, On/OffNote : To display TIME/COUNT menu, highlight position, then press MUTE for 3sec.Time : Cumulative power on time, indicated hour : minute by decimalOn/Off : Number of On/Off switching by decimalNote : This indication will not be cleared by either of the self-checks or any other command.6.3.4. Exit1. Disconnect the AC cord from wall outlet or switch off the power with [ Power ] button on the main unit.