Kenwood NXR-901 Service Manual

Also see for NEXEDGE NXR-901: Instruction manual Instruction manual

Contents

NXR-90123Final unit (X45-3870-11)Ref. No. Part Name DescriptionIC1 IC Current monitorIC2 IC OP AMPIC4 IC OP AMPIC6 IC OP AMPIC7 IC Temperature sensorIC9 IC EEPROMIC11,12 IC Voltage regulatorIC15 IC OP AMPIC17,18 IC Voltage regulatorIC20 IC Variable attenuatorIC21 IC RF power AMPQ2,3 FET DC switchQ6 FET DC switchQ8 FET DC switchQ14,15 FET DC switchQ22 FET DC switchQ501 Transistor Current driveD4 Surge absorber Surge protectionD5,6 Diode Surge protectionD20~22 Diode RF detectionD23 Zener diode Overvoltage protectionD902 Varistor Surge protectionControl unit (X53-4132-71)Ref. No. Part Name DescriptionIC1 IC Shift registerIC2,3 IC MultiplexerIC4 IC CODECIC5 IC OP AMPIC6 IC Voltage regulatorIC7 IC OP AMPIC8 IC D/A converterIC9 IC OP AMPIC10,11 IC DC/DC converter controlIC12 IC OP AMPIC14 IC MultiplexerIC15,16 IC Voltage regulatorIC17 IC Flash memoryIC18 IC Voltage regulatorIC19~21 IC OP AMPIC22 IC Shift registerIC23 IC NAND gateIC25 IC Analog switchIC26 IC OP AMPRef. No. Part Name DescriptionIC27,28 IC BufferIC29 IC AF PAIC30 IC NAND gateIC31 IC DividerIC32,33 IC BufferIC34 IC MPUIC35 IC EEPROMIC36 IC BufferIC37 IC DSPIC38 IC AND gateIC39,40 IC BufferIC41,50 IC AND gateQ1 Transistor InverterQ2,3 FET DC/DC converterQ4,5 Transistor Clock shift switchQ6,7 Transistor AF mute switchQ8 Transistor Power switchQ9 FET Power switchQ10 Transistor Clock shift switchQ11 Transistor Buffer AMPQ12 Transistor Clock shift switchQ13 Transistor Buffer AMPQ14~17 Transistor DC/DC converterQ18 FET InverterQ19 FET Pull up switchQ20~23 Transistor Power switchQ25 Transistor OP CONT switchQ26 Transistor AF mute switchQ27~29 Transistor Buffer AMPD1,2 Diode DC/DC converterD3~5 Diode Surge protectorD6 Zener diode Surge protectorD7~12 Diode Surge protectorD13 Zener diode Surge protectorD14~18,20,23 Diode Surge protectorD24,25 Varistor Current protectorD26 Diode Diode switchD28 Diode Surge protectorD29 Zener diode Surge protectorD30 Diode Surge protectorD31 Zener diode Surge protectorD32 Diode Surge protectorD33 Zener diode Surge protectorD36,37 Diode Surge protectorD38,39 Diode Diode switchCOMPONENTS DESCRIPTION