197.5. No NFC7.6. USB Device Cannot Detect7.7. Fuse Checking7.7.1. Main Fuse (F1001)7.7.2. Back Up Circuit Fuse (F1401)7.7.3. Back Up Circuit Fuse (F1501)Press the Power Buttonof Unit or Remote Controlto Turn ON the UnitPress [ SELECTOR and chooseBLUETOOTH]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 Main PCBNGSet ON when Tap thePhone on NFC LogoSet will Display"BLUETOOTH"No ProblemFoundOK KOKOKOCheck DC-DC Regulator IC(IC2104)Measured 3.3V at Pin 2[refer to check point 8 ]Press the Power Buttonof Unit or Remote Controlto Turn ON the UnitChange DAMP PCBNGPlug-in USB DeviceFL Display " USB"NGChange DAMP PCBNGPress PlayFL Display"Music Name or Title"No ProblemFoundOK KOKOPress [ SELECT andchoose USB mode] on the Setor Use Remote ControlDisplay " USB and NO DEVICE"Check DC-DC Regulator IC(IC2101)Measured 5.6V at C2155+[refer to check point 10 ]krameRoN1001Da OK2041Db OK1041Fc OK3011Qd OK2041CIe OKComponents CriteriaD1001 pin to pin resistance > 0ΩD1402 pin to pin resistance > 0ΩF1401pin to pin resistance > 0ΩQ1103IC1402no openpin 5 to pin 7/8 resistance > 0ΩkrameRoN2041Db OKComponents CriteriaD1402 pin to pin resistance > 0ΩkrameRoNf Q1502 OK1051Qg OK6051Dh OKD1506 pin to pin resistance > 0ΩComponents CriteriaQ1502 pin to pin resistance > 0ΩQ1501 pin to pin resistance > 0Ω
