Components Description - Kenwood NX-3220 K Service Manual

2.4

COMPONENTS DESCRIPTION

2.4.1 TX-RX unit (XC1-178K-00,XC1-180K-00)
Ref. No. Part Name
IC1 IC
IC2 IC
IC3 IC
IC4 IC
IC5 IC
IC6 IC
IC7 IC
IC8 IC
IC9 IC
IC10 IC
IC11 IC
IC12 IC
IC13 IC
IC14 IC
IC15 IC
IC17 IC
IC18 IC
IC101 IC
IC102 IC
IC201 IC
IC202 IC
IC203 IC
IC303 IC
IC351 IC
IC352,353 IC
IC401 IC
IC402 IC
IC403 IC
IC404 IC
IC405 IC
IC406 IC
IC409 IC
IC410 IC
IC601 IC
IC650 IC
IC651 IC
IC652 IC
IC654 IC
Q1 Transistor
Q2 FET
Q3 FET
Q4 FET
Q5 FET
Q6,7 Transistor
1-22 (No.RA053<Rev.001>)
Use / Function
Voltage detector
DC/DC converter (12M)
DC/DC converter (38M)
DC/DC converter (18M)
Voltage regulator (32M)
Voltage regulator (50C)
Voltage regulator (32BT)
Voltage regulator (18BT)
Voltage regulator (31BU)
Voltage regulator (12BU)
Voltage regulator (32A)
Switch IC (18M_3 )
DC/DC converter (200C)
Voltage regulator (32C)
Voltage regulator (50T)
Voltage regulator (50A)
DC amplifier
DC amplifier (Assist)
DC amplifier (CV)
DC amplifier (Antenna SW)
MMIC (Pre-drive)
DC amplifier (APC)
Transceiver IC
GPS/Bluetooth
Level converter
MPU/DSP
SDRAM
Voltage detector
Flash memory
AND gate (2 input)
Motion sensor
A/D converter
D/A converter
Codec
Audio amplifier
Voltage regulator (50J)
Bus buffer (3 state)
AND gate (2 input)
38M control
Detector (Power Switch)
Detector (BINT)
DC switch (SB2)
18M control
DC switch (Codec IC)
Ref. No. Part Name
Q102 FET
Q103 FET
Q111,112 FET
Q113 Transistor
Q114 FET
Q116 FET
Q131 FET(NX-3220),
Transistor(NX-3320)
Q151 Transistor
Q181 Transistor
Q201 FET
Q202 FET
Q203,204 Transistor
Q205,206 FET
Q207 Transistor
Q351 FET
Q401 Transistor
Q402 Transistor
Q650 Transistor
Q651,652 FET
Q653,654 Transistor
Q656 Transistor
D1 Diode
D8 Diode
D9 Diode
D10 Diode
D102 Zener diode
D111 Diode
D131 Variable capacitance
diode
D132-136 Variable capacitance
diode
D151-155 VARI CAP D
D201-203 Diode
D204 Zener diode
D205 Diode
D206 Diode
D301,302 Diode
D303,304 Diode
D401,402 Diode
D403-407 Diode
D607-609 Diode
D620,621 Zener diode
D650 Diode
D651,652 Zener diode
D653-655 Diode
Use / Function
DC switch (Assist)
DC switch (VCO Buffer)
DC switch (VCO)
Ripple filter
DC switch (VCO)
DC switch (VCO)
VCO
VCO buffer(NX-3220),
VCO(NX-3320)
VCO buffer
Drive amplifier
RF final amplifier
APC switch
APC switch
APC switch
DC switch
Clock buffer
DC switch
DC switch (Audio amplifier)
Audio mute
DC switch (Audio mute)
DC switch (External PTT)
Reverse protection
38M control
Back up battery charge
DC/DC converter
Over voltage protection
Ripple filter
VCO frequency control
VCO frequency control
VCO frequency control
Antenna switch
Over voltage protection
Antenna switch
Surge protection
Excessive input protection
Excessive input protection
Reverse current protection
Reverse current protection
Surge protection
Surge protection
External speaker detector
Over voltage protection
Surge protection