197.4. No Remote Control Function7.5. No NFC7.6. USB Device Cannot DetectPress Remote ControlPower Buttonto Power ON the Unit(Ensure have Battery & New)If CannotPower ON(No Display)OKNGPress Power Buttonof the Unitto Turn ON the SetFL DisplayShow "HELLO"OK Press RemoteControl ButtonsCheck Panel P.C.B& remote controlNGOK All Remote ControlButtons are WorkingChange IC8011NGOK No Problem FoundCheck Standby Regulator IC(IC8011)Measured 3.3V at Pin 3[refer to check point 8 ]Press Power Buttonof Unit or Remote Controlto Turn ON the UnitPress [SELECTOR] and choose[BLUETOOTH]on the Set or Remote ControlDisplay "BLUETOOTH"Change NFC PCBNGCheck and Do Setting of NFC.OFF the Set and Tap the Phoneon NFC Logo to ON the Set.Set will ON at BLUETOOTH ModeNGChange IC8004 , L8001NGSet ON when Tap thePhone on NFC LogoSet will Display"BLUETOOTH"No ProblemFoundOK KOKOKOCheck DC-DC Regulator IC(IC8004)Measured 5.3V at L8001[refer to check point 9 ]Press Power Buttonof Unit or Remote Controlto Turn ON the UnitCheck USB P.C.BNGPlug-in USB DeviceFL Display "USB"NGChange IC8004NGPress PlayFL Display"Music Name or Title"No ProblemFoundOK KOKOPress [SELECTOR andchoose USB mode] on the Setor Use Remote ControlDisplay "USB and NO DEVICE"Check DC-DC Regulator IC(IC8004)Measured 5.3V at L8001[refer to check point 9 ]