Kenwood NX-300 Service Manual

Also see for NEXEDGE NX-300: Brochure Instruction manual Instruction manual Instruction manual Instruction manual

NX-30018TX-RX unit (X57-7370-XX)Ref. No. Part Name DescriptionIC404 IC OP AMP (RSSI/VAGC)IC500 IC Temperature sensorIC501 IC AF AMP for TCXO MODIC502 IC PLL ICIC503 IC DC AMP for VCO tuneIC504 IC OP AMP (VCO MOD/APC)IC600 IC Auto power controlIC700 IC BufferIC701 IC FM ICIC702,703 IC DC AMP for BPFIC900 IC 50T controlIC901 IC DC/DC converterIC902 IC Voltage regulator (50C)IC903 IC Voltage regulator (33C)Q503 Transistor Ripple filterQ504 FET Buffer AMPQ507 Transistor Ripple filterQ508,509 FET VCO oscillationQ510,511 FET T/R switchQ512,600 Transistor Buffer AMPQ601 Transistor Pre-drive AMPQ602 FET Drive AMPQ603 FET Pre-final AMPQ604 Transistor APC switchQ605 FET APC switchQ606 FET RF final AMPQ607 Transistor APC switchQ608 FET APC switchQ610 Transistor APC switchQ700 Transistor 2nd Local triplerQ701 Transistor IF AMPQ703 FET MixerQ704 Transistor Ripple filterRef. No. Part Name DescriptionQ705 FET RF AMPQ706 FET RF AGCQ900 Transistor TX/RX LED switchQ901 FET SB3 switchQ902 FET 50R switchQ903 FET 50IF switchQ904 FET DC/DC converter switchQ905 Transistor 50T switchD501 Diode Ripple filterD505 Diode Bypass diodeD506,507,D510,511Variable capaci-tance diode Frequency controlD514~517 Variable capaci-tance diode Frequency controlD518 Diode Ripple filterD519 Variable capaci-tance diode TX modulationD600,601 Diode Local switchD604 Zener diode APC switchD605 Zener diode APC protectD606,607 Diode Antenna switchD700 Diode Ripple filterD702~704 Variable capaci-tance diode Vari-cap tuneD705 Diode RF AGCD706,708 Variable capaci-tance diode Vari-cap tuneD709 Diode Antenna switchD710 Variable capaci-tance diode Vari-cap tuneD711 Diode Antenna switchD900 LED TX/RX LEDD901 Diode Reverse protectionD902 Diode 50T controlD902 Diode 50T controlCOMPONENTS DESCRIPTION