Kenwood NX-720 Service Manual

Also see for NEXEDGE NX-720: Installation guide Instruction manual Technical details Service manual Instruction manual

Contents

NX-720(G)/72017COMPONENTS DESCRIPTIONDisplay unit (X54-3830-10)Ref. No. Part Name DescriptionIC1 IC LCD driverQ3 Transistor TX/Busy LED switchQ6 Transistor TX/Busy LED switchQ8 Transistor LCD backlight switchQ9 Transistor Backlight switchQ10 Transistor Status LED switchQ11 Transistor Backlight switchD2 Diode Line protectionD5-9 LED Key backlightD11-21 LED LCD backlightD22 LED Status LEDD23 LED TX/Busy LEDD24 LED LCD backlightD25 Varistor Line protectionD26 Diode Key controlD27 Zener diode Over DC supply protectionTX-RX unit (X57-8230-1X)Ref. No. Part Name DescriptionIC1 IC AVR (80C)IC2 IC PLL systemIC3 IC DC AMP (CV/Assist)IC102 IC TX power moduleIC103 IC OP AMP (APC)IC201 IC DC AMP (BPF)IC301 IC AND gateIC303 IC FM systemIC304 IC DC AMP (RSSI)IC401 IC AVR (33M)IC402 IC Voltage detector (BINT)IC404 IC AVR (50C)IC405 IC DC/DC converter (50M)IC406 IC AVR (33A)IC407 IC AVR (33GPS)IC408 IC AVR (15M)IC409 IC AVR (33C)IC501 IC Flash memoryIC502 IC DSPIC503 IC SRAMIC504 IC ResetIC506 IC Buffer AMP (Clock)IC507 IC ASICIC508 IC AND gateIC509 IC Dual BUS buffer (HOOK/RXD/MKEYI)IC511 IC BUS bufferIC512 IC Level shiftIC513 IC Dual BUS buffer (FNC3/FNC1)IC514 IC Dual BUS buffer (FNC2/FNC4)IC515 IC I/O expanderIC516 IC RS-232C driverIC701 IC VCO MOD/VREFIC702 IC LPF (APC/DMO)IC703 IC MIC SUM AMP/LPF (DI)IC705 IC BPF/Buffer AMP (SQ)IC711 IC RX SUM AMP/LPF (RX AF)IC712 IC D/A converterIC713 IC MIC/RX selectorIC714 IC AF power AMPIC716 IC Dual BUS buffer (TXD1/MKEO)IC801 IC Dual BUS buffer (TXD2/RXD2)