Components Description - Kenwood NX-5800 Service Manual

Uhf digital transceiver
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2.5

COMPONENTS DESCRIPTION

2.5.1 Main unit (XC1-0391-XX)
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
IC16
IC
IC17
IC
IC18
IC
IC100
IC
IC101
IC
IC102
IC
IC300
IC
IC301, 303 IC
IC304
IC
IC500
IC
IC501
IC
IC600
IC
IC700
IC
IC701
IC
IC702
IC
IC703
IC
IC704, 705 IC
IC706
IC
IC707, 708 IC
IC709, 710 IC
IC711
IC
IC712
IC
IC714
IC
IC715
IC
IC719
IC
IC720
IC
IC900
IC
IC901
IC
IC903
IC
Description
Voltage regulator (31BU)
Power management
Voltage regulator (12BU)
Voltage regulator (33A)
Voltage regulator (33M)
Voltage regulator (50C)
Voltage regulator (33SD)
DC/DC Converter (54M)
Load SW (18M SW)
Voltage regulator (50A)
DC/DC Converter (18M)
Voltage regulator (33C)
DC/DC Converter (200C)
Voltage regulator (33OPT)
Voltage regulator (90C)
Voltage regulator (50CT)
Voltage regulator (50R)
Reset
PLL IC
Schmitt trigger
DC AMP (CV/Assist)
TX pre-drive AMP
APC
TX power control
RX 1st mixer
DC AMP (CV/Assist)
IF IC
Level shift
Flash memory
Mobile DDR
Clock buffer
Logic control
MPU/DSP
Analog SW
Logic control
I/O expander
A/D converter
Analog SW
D/A converter
D/A converter
Reset
Logic control
DC AMP (25REF/VREF)
AF AMP
Ref.No
Part Name
IC902
IC
IC904
IC
IC905
IC
IC906
IC
IC907
IC
IC908
IC
IC909
IC
IC910
IC
IC912
IC
Q1
Transistor
Q3
FET
Q4
Transistor
Q5
FET
Q6, 7
Transistor
Q8, 9
Transistor
Q10
FET
Q11
Transistor
Q12
FET
Q14
FET
Q15
Transistor
Q16
FET
Q17
Transistor
Q18
FET
Q81
FET
Q100
Transistor
Q101
FET
Q102
Transistor
Q103
FET
Q104
Transistor
Q105
FET
Q106
Transistor
Q107
FET
Q108
FET
Q109
FET
Q110, 111 Transistor
Q112
FET
Q300
FET
Q301~303 Transistor
Q304, 305 FET
Q500
Transistor
Q502
Transistor
Q600
FET
Q601
Transistor
Q602
Transistor
Q603
Transistor
Q604
FET
Description
Codec
Logic control
Buffer AMP (BER CK/BER DT)
Level shift
Analog SW
Schmitt trigger
RS-232C driver
I/O expander
Logic control
DC SW (SCTAM1)
DC SW
DC SW
DC SW (SB1)
DC SW
Voltage regulator (50BU)
DC SW (SB2)
DC SW
DC SW
DC SW
DC SW
DC SW (90T)
DC SW
DC SW (90ANT)
T/R SW
DC SW (fin filter)
DC SW
DC SW (fin filter)
DC SW
Ripple filter
VCO oscillation
Fin AMP
VCO oscillation
DC SW
T/R SW (VCO)
Buffer AMP
DC SW
TX drive AMP
DC SW
DC SW
RX local AMP
LNA
VCO oscillation
DC SW
Ripple filter
IF AMP
IF AMP
(No.RA017<Rev.002>)1-21

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