Kenwood NXR-1800 Service Manual page 43

Part
Ref. No.
Name
Q904 FET 10MHz SW
Q905,906 FET DC SW
Q907 TRANS 10MHz AMP
ISTOR
Q1000 FET DC SW
Q1001 TRANS Ripple filter [RIPL FIL]
ISTOR
Q1002,1003 FET DC SW
Q1004 FET RX_L VCO oscillation [RX_L VCO]
Q1005 FET RX_H VCO oscillation [RX_H VCO]
Q1007 TRANS RX VCO Buffer AMP
ISTOR [RX VCO BUFF AMP]
Q1008 TRANS RX F IN AMP
ISTOR
Q1010 TRANS RX VCO Buffer AMP
ISTOR [RX VCO BUFF AMP]
Q2000 FET DC SW
Q2001 TRANS TX VCO Buffer AMP
ISTOR [TX VCO BUFF AMP]
Q2002 TRANS TX F IN AMP
ISTOR
Q2003 FET TX_L VCO oscillation [TX_L VCO]
Q2006 TRANS Ripple filter [RIPL FIL]
ISTOR
Q2007 FET TX_H VCO oscillation [TX_H VCO]
Q2008,2009 FET DC SW
Q2010 TRANS TX VCO Buffer AMP
ISTOR [TX VCO BUFF AMP]
Q3035 TRANS Ripple filter (20V) [RIPL FIL]
ISTOR
Q3060 FET Inverter (FAN_PWM) [INV]
Q3061-3063 FET DC SW
Q3065 FET Drive AMP [DRV AMP]
Q3066 TRANS DC SW (VG_DIS) [DC SW]
ISTOR
Q3067 FET Pre Drive AMP2 [PRE DRV AMP2]
Q3069 FET Final power AMP [FINAL AMP]
Q3071 FET DC SW (TADJ) [DC SW]
Q3072,3073 FET DC SW
Q4004 TRANS DC SW
ISTOR
Q4005 FET DC SW (12V) [DC SW]
Q4006 FET DC SW (PW_DOWN_10V) [DC SW]
Q4007,4008 FET DC SW (9V_TX) [DC SW]
Q4010 FET DC SW (PS_SWT_STATUS) [DC SW]
Q4013 FET DC SW (5V_RX_M) [DC SW]
Q4014 FET DC SW (5V_RX_EN) [DC SW]
Q4015 FET DC SW (3.3V_RX_M) [DC SW]
Q4016,4017 FET DC SW (/MAIN SHDN) [DC SW]
Use / Function
Part
Ref. No.
Name
Q4018 FET DC SW (PLD_PS_SWT_CTRL)
[DC SW]
Q4020 FET DC SW (BASW) [DC SW]
Q4021,4022 DIGI DC SW
TRANS
ISTOR
Q4024 TRANS DC SW
ISTOR
D1 LED LED (Power ON indicator)
[PWR ON IND LED]
D2 ZENER Over voltage protection
DIODE [OVR V PRTCT]
D53 DIODE DC SW (RTC backup battery) [DC SW]
D100,101 DIODE Reverse current prevention
[REV CURR PREV]
D250 SURGE Surge protection [SRG PRTCT]
ABSOR
BER
D252-257 SURGE Surge protection [SRG PRTCT]
ABSOR
BER
D260-262 SURGE Surge protection [SRG PRTCT]
ABSOR
BER
D300 ZENER Voltage reference [V REF]
DIODE
D521-531 DIODE Surge protection [SRG PRTCT]
D533-536 SURGE Surge protection [SRG PRTCT]
ABSOR
BER
D539 DIODE Surge protection [SRG PRTCT]
D541 DIODE Surge protection [SRG PRTCT]
D544 SURGE Surge protection [SRG PRTCT]
ABSOR
BER
D550-557 SURGE Surge protection [SRG PRTCT]
ABSOR
BER
D558 DIODE Reverse current prevention
[REV CURR PREV]
D559 ZENER Over voltage protection
DIODE [OVR V PRTCT]
D560 DIODE Reverse current prevention
[REV CURR PREV]
D561 ZENER Over voltage protection
DIODE [OVR V PRTCT]
D600 LED LED (TX1) [TX1 LED]
D601 LED LED (TX2) [TX2 LED]
D602 LED LED (RX1) [RX1 LED]
D603 LED LED (RX2) [RX2 LED]
D605 LED LED (Status) [STATUS LED]
Use / Function
(No.RA094<Rev.002>)1-43