Terminal Function - Kenwood NX-5400 Service Manual

700/800mhz digital transceiver
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Ref. No.
Part Name
IC900
IC
IC901
IC
IC902
IC
IC903
IC
IC904,905 IC
IC906
IC
Q20
Transistor
Q21~30
FET
Q31
Transistor
Q32,33
FET
Q70
Transistor
Q71
Transistor
Q100
FET
Q101
Transistor
Q110,111 FET
Q160
FET
Q180
Transistor
Q181
Transistor
Q200
FET
Q201
Transistor
Q210,211 FET
Q240
FET
Q280
Transistor
Q281
Transistor
Q310
FET
Q320
FET
Q330
FET
Q390~400 Transistor
Q401,402 FET
Q403
Transistor
Q404
FET
Q530
FET
Q550
FET
Q570,571 FET
Q580
Transistor
Q600
FET
Q601
Transistor
Q602
Transistor
Q660
Transistor
Q670
FET
Q700
Transistor
Q701
FET
Q702
Transistor
Q703
FET
Q800
FET
Q801
Transistor
Description
A/D converter
D/A converter
Codec
D/A converter
Audio AMP
Logic control
DC SW
DC SW
DC SW
DC SW
DC SW
Voltage regulator (53AF)
DC SW
Ripple filter
DC SW
VCO oscillation
Buffer AMP
Doubler
DC SW
Ripple filter
DC SW
VCO oscillation
Buffer AMP
Doubler
Pre-drive AMP 2
Drive AMP
Final AMP
DC SW
DC SW
DC SW
DC SW
LNA
LNA
DC SW
Buffer AMP
VCO oscillation
DC SW
Ripple filter
IF AMP
IF AMP
TCXO buffer
DC SW
DC SW
DC SW
DC SW
DC SW
Ref. No.
Part Name
D1
Diode
D2
Diode
D20
Diode
D30
Diode
D60
Diode
D100
Zener diode
D101
Diode
D160~164 Variable capac-
itance diode
D200
Zener diode
D201
Diode
D240~243 Variable capac-
itance diode
D350
Diode
D370,371 Diode
D390
Zener diode
D570,571 Diode
D600,601 Variable capac-
itance diode
D603~703 Diode
D704
LED
D705~804 Diode
D805,806 Zener diode
D807
Diode
D808
Zener diode
D850,851 Diode
D900,901 Zener diode
D902
Diode
D903
Diode
D904~907 Diode
D910,911 Varistor
2.6

TERMINAL FUNCTION

2.6.1 TX-RX unit (XC1-0321-80)
Pin No.
Name
I/O
1
+B
O Power output after passing through the
fuse
2
SB1
I Switched B input
3
NC
- No connection
4
NC
- No connection
5
VOL
I Volume level input
6
50A
O 5.0V output
7
ENC0
I Rotary switch input
8
GND
- GND
9
ENC1
I Rotary switch input
Description
+B
Overvoltage protection
DC SW
Backup battery charge
DC/DC converter
Overvoltage protection
Ripple filter
VCO frequency control
Overvoltage protection
Ripple filter
VCO frequency control
Antenna SW
Antenna SW
APC protect
Overvoltage protection
VCO frequency control
Overvoltage protection
LED
Overvoltage protection
Surge protection
Surge protection
Surge protection
Overvoltage protection
Surge protection
Overvoltage protection
DC SW
Overvoltage protection
Surge protection
Function
CN4
(No.RA016<Rev.001>)1-19

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