8. Service Mode8.1. (DVD) Self-Diagnosis and Special Mode Setting8.1.1. (DVD) Self-Diagnosis FunctionsSelf-Diagnosis Function provides information for errors to service personnel by “Self-Diagnosis Display” when any error has occurred.U**, H** and F** are stored in memory and held.You can check latest error code by transmitting [0] [1] of Remote Controller in Service Mode.Automatic Display on FL will be cancelled when the power is turned off or AC input is turned off during self-diagnosis display is ON.ErrorCodeDiagnosis contents Description MonitorDisplayAutomatic FL displayU30 Remote control codeerrorDisplay appears when main unitand remote controller codes arenot matched.No display“*” is remote controllercode of the main unit.Display for 5 seconds.U59 Abnormal innertemperature detectedDisplay appears when the drivetemperature exceeds 70°C.The power is turned off forcibly.For 30 minutes after this, all keyentries are disabled. (Fan motoroperates at the highest speed forthe first 5 minutes. For theremaining 25 minutes, fan motoris also stopped.) The event issaved in memory as well.No display“U59 is displayed for 30minutes.